EP1570150B1 - Ein-marsch abgelenktes kernbohr- oder bohrsystem - Google Patents

Ein-marsch abgelenktes kernbohr- oder bohrsystem Download PDF

Info

Publication number
EP1570150B1
EP1570150B1 EP03747752A EP03747752A EP1570150B1 EP 1570150 B1 EP1570150 B1 EP 1570150B1 EP 03747752 A EP03747752 A EP 03747752A EP 03747752 A EP03747752 A EP 03747752A EP 1570150 B1 EP1570150 B1 EP 1570150B1
Authority
EP
European Patent Office
Prior art keywords
fluid
coring
tubing
drilling
guide element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP03747752A
Other languages
English (en)
French (fr)
Other versions
EP1570150A1 (de
Inventor
Philippe R. Fanuel
Luis E. Quintana
Olivier Mageren
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Halliburton Energy Services Inc
Original Assignee
Halliburton Energy Services Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Halliburton Energy Services Inc filed Critical Halliburton Energy Services Inc
Publication of EP1570150A1 publication Critical patent/EP1570150A1/de
Application granted granted Critical
Publication of EP1570150B1 publication Critical patent/EP1570150B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/061—Deflecting the direction of boreholes the tool shaft advancing relative to a guide, e.g. a curved tube or a whipstock
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/16—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors for obtaining oriented cores

Definitions

  • the present invention relates to an assembly for coring or deflected drilling in a wall of a borehole drilled or cored beforehand in a formation.
  • the object of the present invention is to propose an assembly with which the guide or deflection element and the corer are lowered in one operation.
  • Such a deviated coring system is described in patent EP 0 514 657 A.
  • the cored or deflected bore assembly of the invention includes a guide member whose outer diameter is selected to be able to enter the borehole to a desired depth for the deviated core, and which is from a posterior end, in a direction of advance of the coring or drilling towards the bottom of the borehole, a coaxial internal space of a diameter adapted to house a corer.
  • An expandable device attached to the forward end of the guide member, has an outer side surface which, in a rest state, has a cross section smaller than that of the borehole and which is arranged to take, in a dilated state of the device, an immobilizing support of said assembly against the wall of the borehole.
  • the expandable device comprises selective actuation means arranged to receive a pressurized fluid which causes expansion of the expansible device beyond a determined pressure of the fluid, and a valve arranged to oppose automatically an outlet of this fluid. determined pressure out of said actuating means.
  • a deflection channel is hollowed out in the guide element in extension of the internal space, upstream of the expandable device along said direction of advance.
  • the deflection channel has a posterior end coaxial with said internal space, a bottom and lateral sides which follow, from this posterior end of the channel and towards the expandable device, a direction inclined with respect to the longitudinal axis of the guiding element, the bottom intersecting this axis.
  • the channel extends to fully open the guide member, on the other side of the longitudinal axis, at an angle to the aforesaid wall which is chosen for the deviated coring.
  • the deflection channel has a cross section adapted so that it can pass said core guided by the bottom and sides.
  • a longitudinal cavity is cut in the guide element parallel to the aforementioned longitudinal axis, and is arranged to allow passage from the aforesaid internal space to the actuating means of the expandable device.
  • an outer tube of the aforementioned corer In the internal space of the guide element, possibly even in a posterior portion of the deflection channel, there is arranged an outer tube of the aforementioned corer.
  • This outer tube comprises a coring ring attached to the front end of this outer tube, is suspended from a drill string, and is releasably locked in the guide element, in particular so that the crown is included within an imaginary outer shell of the guide member.
  • the outer tube is arranged to slide, after being released, in the internal space and in the deflection channel and then progress in the formation.
  • a removable tubing which extends from the inside of this outer tube, through the longitudinal cavity, to the selective actuating means.
  • the removable tubing has an open rear end to let pressurized fluid from the drill string.
  • a hooking piece is attached to this rear end and is arranged for a subsequent withdrawal of the tubing out of the aforesaid assembly.
  • An anterior end of said tubing is arranged for a releasable and sealed connection between the tubing and the selective actuating means for communicating thereto, through said tubing, the fluid under pressure.
  • the assembly described above is lowered into a block in the borehole and can be oriented for the crown to attack the wall. the hole in the desired direction. Only a simple exchange between the removable tubing and either the inner corer tube or said drilling plug must be made before attacking the wall.
  • the guide element may comprise a sliding member and the expandable device may comprise a chamber in which the sliding member can slide between two stop positions, a position in which the sliding member closes an exit passage. fluid contained under the pressure determined in the dilated expansion device and a position in which this member opens the outlet passage.
  • This arrangement allows to selectively escape at a desired moment the fluid out of the expandable element, so that it can be released from immobilization relative to the wall.
  • the tubing comprises through its wall an orifice, or several orifices at the same level.
  • An annular piston with an internal passage for the fluid, is sealingly mounted to slide in the tubing between a starting position upstream of the orifice (s), to allow fluid to enter the tubing through these ports. ci, and another stop position in which it closes the orifices.
  • the annular piston may comprise a valve seat adapted to receive a valve, preferably a ball, intended to close at least one important passage for the fluid in the tubing in the upstream direction downstream, and to release this passage in the opposite direction.
  • a valve preferably a ball
  • At least one bypass, of reduced cross section relative to that of said passage, can be arranged in a bypass of the valve seat and the valve.
  • the assembly of the invention may comprise a known system for measuring the orientation in the ground of an object equipped with this system, which may be arranged in a guide nose or between this one and the rest of the set of coring or deflected drilling.
  • the assembly according to the invention is particularly suitable in the case where a borehole has been drilled and where a log of this hole has been made.
  • it may be desired to carry out drilling and / or coring deviated from this hole in particular directions and at particular depths.
  • the actuating means are arranged to receive, as pressurized fluid, a fluid of the drilling fluid or coring type.
  • the actuating means are arranged to receive, as pressurized fluid, an expansion fluid pressurized by a fluid of the drilling fluid or coring type via a fluid. a separation piston.
  • Figure 14 shows in a view similar to that of Figure 3 but on a larger scale an arrangement of a piston sliding in the removable tubing.
  • Figures 15 to 18 show an alternative embodiment according to the invention of an assembly for coring or drilling deflected, in a surface position, before descent into the borehole.
  • FIGS 19 to 22 show this variant in the swelling position of the expandable device.
  • Figures 23 to 26 show this variant after deflation of the expandable device.
  • the coring or deflected drilling assembly comprises (FIGS. 1 to 5) a guide element 1 whose outer diameter is chosen so as to be able to enter the borehole (not shown) to a desired depth for the deviated coring.
  • the guide element 1 has from a rear end 3, in a direction of advance S coring or drilling to the bottom of the borehole, a coaxial internal space 5 of a diameter adapted to accommodate a corer 7.
  • An expandable device 9 is attached to the forward end 11 of the guide member 1 and has an outer side surface 13 which, in a rest state (shown in Fig. 1), has a smaller cross section than the hole probe and which is arranged to take, in an expanded state of the device 9, an immobilization support against the wall of the borehole.
  • the expandable device 9 includes selective actuating means 15 which are arranged to receive a fluid under pressure which causes expansion of the expandable device 9 beyond a predetermined pressure.
  • the expandable device 9 further comprises a check valve (not shown in this embodiment) arranged to oppose automatically an output of this fluid at a predetermined pressure of said actuating means 15.
  • the fluid under pressure can be particularly coring / drilling fluid, known in the art, brought so far through a drill string 17 ( Figure 5) to which all aforesaid is connected during use.
  • the expandable device 9 may comprise, for the abovementioned immobilization support, a sleeve 18 made of a waterproof elastic material arranged in said device 9, so as to be inflated by the aforementioned fluid pressurized and thus to take a firm hold against the wall of the borehole. During a release of the pressure, the sleeve 18 can then resume its original shape and release its immobilization support.
  • a deflection channel 19 is hollowed in the guide element 1 in extension and downstream of the internal space 5, upstream of the expandable device 9 along said direction of advance S.
  • the deflection channel 19, including a rear end 21 is coaxial with said inner space 5, has a bottom 23 and two lateral sides 25 which follow, from this rear end 21 and towards the expandable device 9, a direction inclined with respect to the longitudinal axis 27 of the element 1. Said bottom 23 intersects this axis 27.
  • the channel 19 extends to fully open the guide member 1, on the other side of the longitudinal axis 27, at an angle to the aforesaid wall which is chosen for the deviated coring.
  • the deflection channel 19 has a cross section adapted to allow said core core 7 to pass through the bottom 23 and the sides 25.
  • a longitudinal cavity 29 is cut in the guide element 1, parallel to the aforementioned longitudinal axis 27, and is arranged to allow passage from the aforesaid internal space to the actuating means 15 of the expandable device 9.
  • this longitudinal cavity 29 and the guide element 1 are coaxial.
  • an outer tube 33 of the corer 7 In the inner space 5 of the guide element 1, possibly even in a rear portion 31 of the deflection channel 19, there is arranged an outer tube 33 of the corer 7 aforesaid.
  • This outer tube 33 comprises a coring ring 35 fixed to the front end of this outer tube 33, is to be suspended from a drill string 17, and is releasably locked in the guide element 1, in particular of so that the ring 35 is included inside the imaginary outer casing of the guide member 1.
  • the outer tube 33 can be worn ( Figures 4 and 5) by two bearing bushes 36 so as to be able to after having been released, rotate and slide in the internal space 5 and in the deflection channel 19 and then progress in the formation.
  • a removable tubing 39 which extends from the inside of the outer tube 33, through the longitudinal cavity 29, to the means of 15.
  • the removable tubing 39 has a rear end 41 open to allow the pressurized fluid from the drill string 17 to pass therethrough.
  • a hooking piece 43 is attached to this rear end 41 and is arranged for subsequent withdrawal.
  • tubing 39 out of the above set.
  • An anterior end 45 of said tubular 39 is arranged for a releasable and sealed connection between the tubing 39 and the selective actuating means 15 for communicating thereto, through said tubing 39, the aforementioned fluid pressure.
  • the tubing 39 (FIG. 1) is driven into a through-hole 47 of the expandable device 9, two O-rings 49 sealing between the tubing 39 and the device 9.
  • the guide member 1 may comprise ( Figure 1) a sliding member 55 and the expandable device 9 may include a chamber 57 in which the sliding member 55 is guided and can slide between two stop positions, a position (shown) in which the sliding member 55 closes an outlet 59 of the fluid contained under the pressure determined in the expandable device 9 expanded and a position (not shown) in which the sliding member 55 opens this outlet passage 59.
  • the outer tube 33 may comprise an outer bearing face 61 (FIG. 3) facing upstream and intended to cooperate with an internal abutment face 63 (FIG. 4) that comprises the guide element 1, which is turned towards downstream and against which can abut the bearing face 61 when said outer tube 33 is pulled out of the borehole.
  • an outer bearing face 61 (FIG. 3) facing upstream and intended to cooperate with an internal abutment face 63 (FIG. 4) that comprises the guide element 1, which is turned towards downstream and against which can abut the bearing face 61 when said outer tube 33 is pulled out of the borehole.
  • outer tube 33 may advantageously be releasably secured in the guide element 1 by a pin 65 (FIG. 3) calibrated to break during a controlled rotation and / or translation movement of the outer tube 33 in the guide member 1 attached to the wall of the borehole by the expandable device 9 expanded.
  • a pin 65 (FIG. 3) calibrated to break during a controlled rotation and / or translation movement of the outer tube 33 in the guide member 1 attached to the wall of the borehole by the expandable device 9 expanded.
  • the deflected core / drill assembly that has just been described is first assembled, equipped with the removable tubing 39 according to FIGS. 1 to 5, and is attached to a drill string 17 via The assembly is then lowered into the borehole and rotated if necessary (see below), acting on the drill string 17, so that the deflection channel 19 has its opening in the direction in which it is desired to carotter or drill deviated.
  • the fluid sent from the surface, through the drill string 17 (FIG. 5) passes into the outer tube 33 and, by an annular space between the latter and the posterior end 41 of the tubing 39, this fluid arrives in tubing 39 through openings 67 therein provided.
  • a soft metal seal ring 69 may be provided between the tubing 39 and the outer tube 33 and prevent said fluid from escaping from the described path.
  • the fluid arrives ( Figure 1) at the anterior end 45 of the tubing 39 and, at an adequate pressure, inflates the sleeve 18 so that it is firmly pressed against the wall of the borehole.
  • the check valve (not shown in this embodiment) prevents the sleeve 18 from deflating.
  • the guide element 1 is thus immobilized in the borehole.
  • the removable tubing 39 can then be removed from the outer tube 33, in a known manner known as "wire line" in the loom, by means of its attachment piece 43 through the drill string 17. to the surface.
  • the inner tube 51 ( Figures 7 to 10) can be lowered into position in the outer tube 33 by the same technique of "wire line".
  • the inner tube 51 may be held in place, abutting near or in the ring 35 by the pressure of the fluid generally supplied for coring purposes.
  • it is first necessary to break the releasable locking in particular by rotating the outer tube 33, with the aid of the drill string 17, in the guide element 1 fixed to the wall of the borehole as explained above. This rotation, or a translational movement communicated to the outer tube 33 with or without shock, breaks the pin 65 calibrated for this purpose.
  • the corer 7 controlled, driven in rotation and pushed through the drill string 17, is guided by the guide member 1 to attack the wall of the borehole at the desired angle.
  • Said plug 53 may comprise (FIG. 11), in a bar 73 which composes it, a latch 75 which is pushed to a stop by a spring 77 in a position projecting from the bar 73 and which can be pushed back into a retracted position in said bar 73 by an external action.
  • the latch 75 has at each of its anterior and posterior ends an inclined pan arranged so that, when the plug 53 is inserted into the outer tube 33 or removed from it, said latch 75 automatically retracts into the bar 73.
  • a longitudinal groove 79 is cut in the inner wall of the outer tube 33 so as to receive the latch 75, which engages under the thrust of the spring 77. This can occur at the end of the descent of the plug 53 in the outer tube 33 when the latch 75 is in alignment with the groove 79. Otherwise, when the latches 75 and groove 79 are not aligned while the plug 53 is in place in the ring 35, this occurs because it There is a possible relative rotation between the plug 53 and the outer tube 33 as soon as they come into contact with the material to be drilled. The cooperation of the lock 75 and the groove 79 causes the coordinated rotation of the drill plug 53 by the outer tube 33 which drives the crown 35 in the same way.
  • FIG. 11 At the level where the housing of the lock 75 is located, one or more longitudinal ducts 80 drilled in the wall of the outer tube. 33, parallel to the longitudinal axis 27 and open only at their ends so as to prevent said latch 75 can hook.
  • the cap 53 is pushed longitudinally in downstream support, for example against an inner annular face 81 ( Figure 13) of the outer tube 33, by the pressure of the drilling fluid passing therethrough.
  • the bar 73 may be hollow between the attachment piece 43 and the housing of the lock 75 and have inlet and outlet ports so that fluid can flow from upstream to the 'downstream.
  • Another tubular section may be provided in said bar 73 between the housing of the latch 75 and the front end of the plug 53.
  • Slots 82 (FIG. 11) may be drilled in the front end of the plug 53 to provide for front nozzles.
  • 83 of the fluid from the annular space provided between the drill plug 53 and the outer tube 33.
  • the tubing 39 may comprise (FIGS. 3 and 14) through its wall an orifice 87, or several orifices 87 at the same level.
  • An annular piston 89 having an internal passage for the fluid, is then sealingly mounted to slide in said tubing 39 between a starting position (shown in FIGS. 3 and 14) upstream of the orifices 87, in order to allow to fluid entering through the tubing 39, and another position (not shown) abutting downstream, wherein the same piston 89 closes the orifices 87, the fluid being channeled then through the annular piston 89.
  • a valve seat 95 is arranged to receive a valve 97.
  • This may preferably be a ball 97 installed at the assembly or throwing through the drill string 17, and is intended for closing at least one major section of the passage for the fluid in the removable tubing 39 in the upstream direction downstream, and to release this passage in the opposite direction.
  • it can be formed, for example in the valve seat 95, at least one bypass 98, of reduced cross section relative to that of said passage, which is arranged in a bypass of the valve seat 95 and the valve 97.
  • the annular piston 89 is held in said starting position by a breakable element 91, such as a pin, calibrated to break under a thrust of the piston 89 subjected to a pressure beyond a given threshold.
  • a breakable element 91 such as a pin
  • a positioning stopper 99 (FIG. 5), in particular combined with the ring 69. which can bear against a suitable surface provided in the outer tube 33.
  • a releasable latch 100 in particular to two bolts 101, which is mounted on the pipe 39, the two bolts 101, shaped accordingly, are automatically locked by the action of a spring 103 in longitudinal notches 105 or other receptacles cut into the outer tube 33.
  • the two bolts 101 are removed from the notches 105 in a known manner.
  • a guide nose 107 in front of the expandable device 9 may be arranged a guide nose 107 whose anterior end is preferably hemispherical.
  • a known system, not shown, for measuring the orientation in the ground of an object equipped with this system can be interposed for example in said guide nose 107 or between the latter and the remainder of the coring assembly or deviated drilling.
  • This measurement system can be of the type that records data, then accessible after bringing the assembly and the system back to the surface, or of the type that transmits orientation data in real time to an operator on the surface.
  • the operator can optionally use these data transmitted in real time, so as to act on all and give it a particular orientation for drilling and / or coring.
  • said orientation measuring system can be associated with the removable tubular 39, preferably at its posterior end 41.
  • This system can be attached to it and then it is reassembled only after inflation.
  • elastic sleeve 18 and either it has transmitted in real time data on the orientation of the guide member 1, or the data is taken from the system once brought to the surface. Based on these orientation data of the assembly as it has been positioned in the borehole, a deviation from a desired orientation can be deduced therefrom and the orientation accordingly changed by acting on the train. rods.
  • said measurement system can be detachably associated with the rear end 41 of the removable tubing 39 and be brought up to the surface as many times as necessary, before inflating the elastic sleeve 18, in order to take the recorded orientation information and check that the orientation of the assembly is good or correct it accordingly.
  • a particular fluid without solid particles, to ensure a faultless operation of the check valve.
  • This particular fluid could be sent under pressure through the drill string 17 or stored in the above set and pressurized to using a coring / drilling fluid acting in particular on a piston 20 for separating the two fluids.
  • FIGS. 15 to 23 A coring or drilling set allowing this operation is illustrated in FIGS. 15 to 23.
  • the assembly according to the invention is at the surface, before the descent into the borehole.
  • the guide nose 107 of this installation comprises a supply pipe 108 which opens at one end to the outside and can be closed there by a tap 109.
  • the tap 109 is open, which allows a supply of a fluid without particles, for example water, in the pipe 108 which communicates with an annular cavity 110, provided inside a support cylinder 111 of the expandable device 9.
  • This annular cavity 110 communicates in turn with a cylindrical cavity 112, in the upstream part of which, in the direction of descent of the drilling assembly, is arranged a check valve 22.
  • This valve comprises a first portion 113 and a second portion 114 capable of to perform a reciprocal sliding movement.
  • valve 22 In the position shown in Figure 17, the valve 22 is in the up position.
  • the second portion 114 under its own weight, bears on a seat 115 of the first portion 113 and thus releases an annular passage 116 between the first portion 113 and the second portion 114 of the valve 22.
  • the valve 22 allows a passage of the fluid supplied from the cylindrical cavity 112 to the cylindrical chamber 117 in which the separation piston 20 is arranged.
  • the fed fluid exerts an upward pressure on one of the surfaces of the piston 20, while the other surface is at atmospheric pressure, since no fluid has yet been injected into the train of tubes.
  • the piston is thus driven upwards as soon as the product of this pressure by the first surface of the piston overcomes the friction resistance of the joints between the piston 20 and the outer wall 118 of the chamber 117.
  • the piston 20 can abut against the stop 119 and even cause detachment of the non-return valve 120 thus allowing a purge of the lower compartment of the chamber 117.
  • the annular cavity 110 has outlet ducts 131 oriented radially towards the inner lateral surface 12 of the expandable device.
  • the pressure applied to the liquid fed, which will serve as expansion fluid is not sufficient to overcome the inherent resistance of the expandable device 9 to expansion.
  • the tap 109 has been closed.
  • the removable tubing 39 As can be seen in FIG. 22, the removable tubing 39, as described in the embodiment illustrated in FIGS. 1 to 14, is pressed in a sealed manner into one end of a tubular throttling element 121. at its end, this throttling element 121 is provided with a restrictor 122 which puts the throttle cavity in communication with the borehole through an outlet conduit 123 and which causes an upstream pressure increase.
  • the throttling element 121 Upstream of the choke, in the direction of flow of the drilling fluid fluid supplied by the removable tubing 39, the throttling element 121 is provided with small orifices 124 which are directed radially outwardly and allow thus, a portion of the drilling or coring fluid is fed into the compartment of the chamber 117 which is opposite to that receiving the dilation fluid.
  • the throttling element 121 thus separates the pressurized drilling fluid into two streams, a high flow main stream which is discharged into the borehole and a low flow secondary stream which acts to act on the separating piston.
  • the second portion 114 of the check valve 22 has been immobilized in the borehole by known means.
  • the first part 113 is then slid down into the second part 114, and, as illustrated in FIG. 21, the first part 113 in the low position bears on the seat 126 of the tubular part 114.
  • the valve 22 closes any passage of expansion fluid from the cylindrical cavity 112 to the chamber 117 of the separation piston 20.
  • the radial holes 132 provided in the second portion 114 of the check valve 22 are housed in front of the holes radial means 133 of a support tube 134 of the first portion 113 of the valve 22.
  • shear screws are then passed through these holes 132 and 133 so as to immobilize any movement of the second portion 114 relative to to the rest of the drilling and coring set and thus also to the first part 113.
  • the pressure of the expansion fluid in the chamber 117 becomes such that it drives down the ball 127 of the non-return valve integrated in the check valve 22, against the return spring 129.
  • An expansion fluid passage is then allowed from the chamber 117 of the separation piston 20 to the cylindrical cavity 112, where the pressure increases correspondingly.
  • the pressure exceeds the determined pressure to overcome the resistance of the expandable device 9.
  • the expandable device is then expanded, which allows immobilization of the assembly according to the invention to the inside the borehole.
  • the expandable device In the position shown in Figures 23 to 26, the expandable device must be deflated to allow movement, in particular a rise, of the drilling or coring assembly according to the invention in the borehole.
  • a pull is also exerted upward on the support tube 134 of the first portion 113 of the check valve 22. This pull is sufficient to shear the screws 135, as shown in FIG. 25.
  • the second portion 114 of the valve 22 is then released and can slide in its lower position, which again releases a passage 116 of the cylindrical cavity 112 to the cylindrical chamber 117 (as described with reference to Figure 17).
  • the product of the expansion fluid pressure from the surface of the separation piston 20 then becomes greater than the sum of the product of the pressure of the drilling or coring fluid remaining in the upper compartment of the chamber 117 by the surface of the piston of the separation and friction of the piston 20 against the outer wall 118 of this chamber 117.
  • the piston 20 slides upwards and the expandable device 9 returns by elastic return in its initial position in application on the support cylinder 111, which allows the desired movement of the drilling or coring assembly.
  • This last drilling or coring assembly according to the invention has the advantage of using at the level of the check valve and the expandable device of a clean fluid, it is i.e. without suspended particles which are a source of fouling of the check valve. Moreover, the division of the stream of drilling fluid under pressure into a main stream and a low flow secondary stream makes it possible to act in a controlled manner on the separation piston, and therefore on the expansion device, without taking into account the flow rate of the fluid. drilling. Separate pumping of drilling fluid during the expansion operation is not required, pumping installations required for drilling or coring may be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling And Boring (AREA)

Claims (16)

  1. Einheit, die zum Kernbohren oder versetzten Bohren in eine Wand eines Bohrloches, das vorher in eine Formation gebohrt oder kerngebohrt wurde, wobei die Einheit umfasst:
    - ein Führungselement (1)
    - mit einem Außendurchmesser, der derart gewählt ist, dass in das Bohrloch bis in eine für das versetzte Kernbohren gewünschte Tiefe eingedrungen werden kann, und
    - das von einem hinteren Ende (3) in eine Vorschubrichtung (S) des Kernbohrens oder Bohrens zum Boden des Bohrloches einen koaxialen Innenraum (5) mit einem Durchmesser aufweist, der angepasst ist, um darin einen Kernbohrer (7) zu lagern,
    - eine dehnbare Vorrichtung (9)
    - die am vorderen Ende (11) des Führungselements (1) befestigt ist,
    - die eine äußere Seitenfläche (13) aufweist, die in einem Ruhezustand einen kleineren Querschnitt als jener des Bohrloches aufweist und derart angeordnet ist, dass sie in einem gedehnten Zustand der Vorrichtung (9) eine Abstützung zur Feststellung an der Wand des Bohrloches vornimmt, und
    - die selektive Betätigungsmittel (15), die derart angeordnet sind, dass sie ein Druckfluid aufnehmen, das eine Dehnung der dehnbaren Vorrichtung (9) über einen bestimmten Druck hinaus hervorruft, und ein Ventil umfasst, das derart angeordnet ist, dass es sich automatisch einem Austritt dieses bestimmten Druckfluids aus den Betätigungsmitteln (15) widersetzt,
    - einen Ablenkkanal (19), der in dem Führungselement (1) in der Verlängerung des Innenraums (5) stromaufwärts zur dehnbaren Vorrichtung (9) in Vorschubrichtung (S) vertieft ist, wobei der Ablenkkanal (19) umfasst:
    - ein hinters koaxiales Ende (21) zum Innenraum (5),
    - einen Boden (23) und Seiten (25), die von diesem hinteren Ende (21) des Kanals (19) aus und in Richtung der dehnbaren Vorrichtung (9) eine geneigte Richtung in Bezug auf die Längsachse (27) des Führungselements (1) verfolgen, wobei der Boden (23) diese Achse (27) schneidet, wobei sich der Kanal (19) bis zur vollständigen Mündung des Führungselements (1) auf der anderen Seite der Längsachse (27) in einem Winkel zur oben erwähnten Wand, der für das versetzte Kernbohren gewählt ist, erstreckt, und
    - einen Querschnitt, der derart angepasst ist, dass darin der Kernbohrer (7), der vom Boden (23) und den Seiten (25) geführt wird, verlaufen kann,
    - einen Längshohlraum (29), der in das Führungselement (1) parallel zur vorgenannten Längsachse (27) geschnitten und derart angeordnet ist, dass er einen Durchgang der dehnbaren Vorrichtung (9) vom Innenraum (5) bis zu den Betätigungsmitteln (15) ermöglicht,
    - im Innenraum (5) des Führungselements (1) eventuell sogar in einem hinteren Abschnitt (31) des Ablenkkanals (19) ein Außenrohr (33) des Kernbohrers (7)
    - umfassend einen Kernbohrkranz (35), der am vorderen Ende dieses Außenrohrs (33) befestigt ist,
    - das an eine Stangenreihe (17) abgehängt werden kann, und
    - das in dem Führungselement (1) freigebbar befestigt ist, so dass insbesondere der Kranz (35) im Inneren einer imaginären Außenhülle des Führungselements (1) liegt,
    - das derart angeordnet ist, dass es nach seiner Freigabe im Innenraum (5) und im Ablenkkanal (19) gleiten und dann weiter in die Formation übergehen kann,
    - im Außenrohr (33) des Kernbohrers (7) vorübergehend zur Betätigung der dehnbaren Vorrichtung (9) angeordnet eine abnehmbare Rohrleitung (39), die sich vom Inneren dieses Außenrohrs (33) durch den Längshohlraum (29) bis zu den selektiven Betätigungsmitteln (15) erstreckt und umfasst:
    - ein hinteres offenes Ende (41) um ein Druckfluid, das von der Stangenreihe (17) kommt, durchzulassen,
    - ein Befestigungsstück (43), das an diesem hinteren Ende (41) befestigt und für ein späteres Herausziehen der Rohrleitung (39) aus der oben erwähnten Einheit angeordnet ist,
    - ein vorderes Ende (45), das für einen freigebbaren und dichten Anschluss zwischen der Rohrleitung (39) und den selektiven Betätigungsmitteln (15) angeordnet ist, um mit diesen über die Rohrleitung (39) das Druckfluid in Verbindung zu bringen, und
    - in diesem selben Außenrohr (33) nach Dehnung der dehnbaren Vorrichtung (9) und Herausziehen der Rohrleitung (39) aus der Einheit entweder ein Innenrohr (51) eines Kernbohrers oder einen Kranzverschluss (53), der derart angeordnet ist, dass das Bohren möglich ist, wobei das Innenrohr (51) oder der Verschluss (53) ein Befestigungsstück (43) aufweisen, das an ihrem hinteren Ende befestigt und derart angeordnet ist, dass es später aus der oben genannten Einheit abgesenkt und herausgezogen werden kann.
  2. Kernbohr- oder Bohreinheit nach Anspruch 1, dadurch gekennzeichnet, dass für ihre wechselseitige Befestigung das Führungselement (1) ein Gleitelement (55) umfasst und die dehnbare Vorrichtung (9) eine Kammer (57) umfasst, in der das Gleitelement (55) zwischen zwei Anschlagpositionen gleiten kann, einer Position, in der das Gleitelement (55) einen Austrittsdurchgang (59) des unter dem bestimmten Druck in der gedehnten dehnbaren Vorrichtung (9) enthaltenen Fluids schließt, und einer Position, in der dieses Element (55) diesen Austrittsdurchgang (59) öffnet.
  3. Kernbohr- oder Bohreinheit nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass das Außenrohr (33) des Kernbohrers (7) eine äußere Stützfläche (61) umfasst, die stromaufwärts ausgerichtet und dazu bestimmt ist, mit einer inneren Anschlagfläche (63) zusammenzuwirken, die das Führungselement (1) umfasst, die stromabwärts ausgerichtet ist und an die die Stützfläche (61) anschlägt, wenn das Außenrohr (33) aus dem Bohrloch gezogen wird.
  4. Kernbohr- oder Bohreinheit nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Außenrohr (33) des Kernbohrers (7) freigebbar in dem Führungselement (1) durch eine Spindel (65) fest gehalten wird, die derart geeicht ist, dass sie bei einer gesteuerten Dreh- und/oder Translationsbewegung des Außenrohrs (33) in dem Führungselement (1), das an der Wand des Bohrloches durch die gedehnte dehnbare Vorrichtung (9) befestigt ist, zerbricht.
  5. Kernbohr- oder Bohreinheit nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass
    - die Rohrleitung (39) eine Öffnung (87) oder mehrere Öffnungen (87) auf einer selben Ebene durch seine Wand umfasst,
    - ein ringförmiger Kolben (89) mit einem Innendurchgang für das Fluid dicht montiert ist, um in der Rohrleitung (39) zwischen einer Ausgangsposition stromaufwärts zu der oder den Öffnungen (87) zu gleiten, um es dem Fluid zu ermöglichen, in die Rohrleitung (39) einzutreten, und einer weiteren Anschlagposition zu gleiten, in der es die Öffnung(en) (87) schließt, wobei das Fluid durch den ringförmigen Kolben (89) geleitet wird.
  6. Kernbohr- oder Bohreinheit nach Anspruch 5, dadurch gekennzeichnet, dass der ringförmige Kolben (89) in der Ausgangsposition durch ein zerbrechliches Element (91) gehalten wird, das derart geeicht ist, dass es unter einem Schub des Kolbens (89), der einem Druck über eine gegebene Grenze hinaus ausgesetzt ist, zerbricht.
  7. Kernbohr- oder Bohreinheit nach dem einen oder dem anderen der Ansprüche 5 und 6, dadurch gekennzeichnet, dass die Rohrleitung (39) umfasst:
    - in Verbindung mit dem ringförmigen Kolben (89) auf stromaufwärtiger Seite einen Ventilsitz (95), der derart ausgeführt ist, dass er ein Ventil (97), vorzugsweise eine Kugel (97), aufnehmen kann, das dazu bestimmt ist, mindestens einen großen Durchgang für das Fluid in der Rohrleitung (39) von stromaufwärtiger in stromabwärtige Richtung zu schließen und diesen Durchgang in umgekehrte Richtung freizugeben,
    - mindestens eine Umleitung (98) mit verringertem Querschnitt im Vergleich mit jenem des Durchgangs, die als Umleitung zum Ventilsitz (95) und zum Ventil (97) angeordnet ist.
  8. Kernbohr- oder Bohreinheit nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass sie zur Verhinderung einer Längsbewegung der Rohleitung (39) in dem Außenrohr (33) umfasst:
    - stromabwärts einen Positionieranschlag (99) und
    - stromaufwärts einen freigebbaren Riegel (100), der auf der Rohrleitung (39) montiert ist und automatisch in dem Außenrohr (33) festgestellt wird, und der an das Befestigungsstück (43) der Rohrleitung (39) angeschlossen ist, so dass er sich bei einem gegebenen Zug auf das Befestigungsstück (43) befeit.
  9. Kernbohr- oder Bohreinheit nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass vorne an der dehnbaren Vorrichtung (9) eine Führungsnase (107) angeordnet ist, deren vorderes Ende vorzugsweise halbkugelförmig ist.
  10. Kernbohr- oder Bohreinheit nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass sie ein System zum Messen der Ausrichtung eines mit diesem System ausgestatteten Gegenstandes im Boden umfasst, wobei dieses von dem Typ sein kann, der Ausrichtungsdaten aufzeichnet, die analysiert werden können, nachdem das System an die Fläche zurückgeführt wurde, und/oder von dem Typ, der in realer Zeit diese Daten an die Fläche überträgt, die gerade in dem Bohrloch in Betrieb ist.
  11. Kernbohr- oder Bohreinheit nach Anspruch 10, dadurch gekennzeichnet, dass das Messsystem in der Führungsnase (107) oder zwischen dieser und dem Rest der Einheit zum Kernbohren oder versetzten Bohren angeordnet ist.
  12. Kernbohr- oder Bohreinheit nach Anspruch 10, dadurch gekennzeichnet, dass das Messsystem mit der abnehmbaren Rohrleitung (39) vorzugsweise am hinteren Ende (41) dieser Rohrleitung (39) verbunden sein kann.
  13. Kernbohr- oder Bohreinheit nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die Betätigungsmittel (15) derart angeordnet sind, dass sie als Druckfluid ein Fluid vom Typ Bohr- oder Kernbohrfluid aufnehmen.
  14. Kernbohr- oder Bohreinheit nach einem der Ansprüche 1 bis 12, dadurch gekennzeichnet, dass die Betätigungsmittel (15) derart angeordnet sind, dass sie als Druckfluid ein Dehnungsfluid aufnehmen, das durch ein Fluid vom Typ Bohr- oder Kernbohrfluid mit Hilfe eines Trennkolbens (20) unter Druck gesetzt wird.
  15. Kernbohr- oder Bohreinheit nach Anspruch 14, dadurch gekennzeichnet, dass sie ein Verengungselement (121) umfasst, in das die abnehmbare Rohrleitung (39) mündet und das das Fluid vom Typ Bohr- oder Kernbohrfluid unter Druck setzt und es in einen Hauptstrom der durch das Verengungselement (121) zum Inneren des Bohrloches strömt, und einen Nebenstrom mit einer geringeren Durchflussmenge als der Hauptstrom teilt, der als Druckfluid dient, das das Dehnungsfluid unter Druck setzen kann.
  16. Kernbohr- oder Bohreinheit nach Anspruch 15, dadurch gekennzeichnet, dass der Trennkolben (20) in einer Gleitkammer (117) der Betätigungsmittel zwischen zwei äußersten Positionen gleitet und eine erste Fläche, die mit dem Fluid vom Typ Bohr- oder Kernbohrfluid in Kontakt tritt, und eine zweite Fläche aufweist, die mit dem Dehnungsfluid in Kontakt tritt, dass der Trennkolben (20) in eine erste Richtung zu einer der beiden äußersten Positionen gleitet, wenn das Produkt des Drucks des Dehnungsfluids mal der zweiten Fläche größer als die Summe des Produktes des Drucks des Fluids vom Typ Bohr- oder Kernbohrfluid mal der ersten Fläche und der Reibung zwischen dem Trennkolben und der Gleitkammer (117) ist, dass der Trennkolben in eine zweite Richtung zu der anderen der beiden äußersten Positionen gleitet, wenn das Produkt des Drucks des Fluids vom Typ Bohr- oder Kernbohrfluid mal der ersten Fläche größer als die Summe des Produkts des Drucks des Dehnungsfluids mal der zweiten Fläche und der Reibung zwischen dem Trennkolben und der Gleitkammer ist, und dass während des Gleitens des Trennkolbens (20) in die erste Richtung das Dehnungsfluid nicht den bestimmten Druck erreicht, über den hinaus eine Dehnung der dehnbaren Vorrichtung (9) stattfindet, während beim Gleiten des Trennkolbens (20) in die zweite Richtung das Dehnungsfluid den bestimmten Druck erreicht und eine Dehnung der dehnbaren Vorrichtung (9) hervorruft.
EP03747752A 2002-09-26 2003-09-25 Ein-marsch abgelenktes kernbohr- oder bohrsystem Expired - Lifetime EP1570150B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
BE200200563 2002-09-26
BE2002/0563A BE1015123A3 (fr) 2002-09-26 2002-09-26 Ensemble destine a un carottage ou forage devie.
PCT/BE2003/000161 WO2004029401A1 (fr) 2002-09-26 2003-09-25 Systeme de carottage ou forage devie a une passe

Publications (2)

Publication Number Publication Date
EP1570150A1 EP1570150A1 (de) 2005-09-07
EP1570150B1 true EP1570150B1 (de) 2006-11-22

Family

ID=32034661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03747752A Expired - Lifetime EP1570150B1 (de) 2002-09-26 2003-09-25 Ein-marsch abgelenktes kernbohr- oder bohrsystem

Country Status (8)

Country Link
US (2) US7117958B2 (de)
EP (1) EP1570150B1 (de)
AT (1) ATE346218T1 (de)
BE (1) BE1015123A3 (de)
CA (1) CA2499725C (de)
DE (1) DE60309925D1 (de)
NO (1) NO20051890L (de)
WO (1) WO2004029401A1 (de)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1015123A3 (fr) 2002-09-26 2004-10-05 Security Dbs Ensemble destine a un carottage ou forage devie.
US7652674B2 (en) * 2006-02-09 2010-01-26 Real D On the fly hardware based interdigitation
US8028767B2 (en) 2006-12-04 2011-10-04 Baker Hughes, Incorporated Expandable stabilizer with roller reamer elements
RU2347882C1 (ru) * 2007-05-07 2009-02-27 Общество с ограниченной ответственностью "Наука" Устройство для удаления части жидкости из полости якоря
RU2348785C1 (ru) * 2007-07-27 2009-03-10 Общество с ограниченной ответственностью "Наука" Клапанное устройство извлекаемого якоря
US7896108B2 (en) * 2008-03-06 2011-03-01 Able Robert E Dual string orbital drilling system
US8205689B2 (en) 2008-05-01 2012-06-26 Baker Hughes Incorporated Stabilizer and reamer system having extensible blades and bearing pads and method of using same
GB0911672D0 (en) * 2009-07-06 2009-08-12 Tunget Bruce A Through tubing cable rotary system
US8297381B2 (en) 2009-07-13 2012-10-30 Baker Hughes Incorporated Stabilizer subs for use with expandable reamer apparatus, expandable reamer apparatus including stabilizer subs and related methods
CN101672170B (zh) * 2009-09-01 2013-10-23 中国地质大学（北京） 一种新型电动定向取芯器
US8739902B2 (en) 2012-08-07 2014-06-03 Dura Drilling, Inc. High-speed triple string drilling system
US20140166366A1 (en) 2012-12-13 2014-06-19 Smith International, Inc. Single-trip lateral coring systems and methods
US9702196B2 (en) * 2013-09-06 2017-07-11 Baker Hughes Incorporated Coring tool including core bit and drilling plug with alignment and torque transmission apparatus and related methods
GB2567225B (en) * 2017-10-06 2020-02-26 Priority Drilling Ltd Directional drilling
CN109403901B (zh) 2018-11-08 2023-11-10 深圳大学 取芯钻机钻井液通道结构
CN111550207B (zh) * 2020-04-27 2024-06-07 深圳大学 一种多重防转的取芯器
CN111485840B (zh) * 2020-04-27 2024-06-07 深圳大学 一种用于取芯器的防转机构
CN111550208B (zh) * 2020-04-27 2024-06-07 深圳大学 一种连续导管式坑道取芯装备
CN112282740B (zh) * 2020-10-30 2022-10-04 中国地质大学（武汉） 一种压送报信式水平定向钻进工程地质勘察连续取芯装置
CN112324334B (zh) * 2020-10-30 2022-01-25 中国地质大学（武汉） 一种密封压送式水平定向钻进工程地质勘察连续取芯装置
CN115266199B (zh) * 2022-08-03 2023-04-25 西安石油大学 一种石油地质勘探采样装置及方法
CN119666979B (zh) * 2024-12-11 2025-10-03 中国科学院武汉岩土力学研究所 一种胀孔试验装置及胀孔试验方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123160A (en) * 1964-03-03 Retrievable subsurface well bore apparatus
US5163522A (en) * 1991-05-20 1992-11-17 Baker Hughes Incorporated Angled sidewall coring assembly and method of operation
US6209636B1 (en) * 1993-09-10 2001-04-03 Weatherford/Lamb, Inc. Wellbore primary barrier and related systems
US5568838A (en) * 1994-09-23 1996-10-29 Baker Hughes Incorporated Bit-stabilized combination coring and drilling system
WO1997003274A1 (en) 1995-07-07 1997-01-30 The Red Baron (Oil Tools Rental) Limited Single trip whipstock assembly
BE1011199A3 (fr) * 1997-06-09 1999-06-01 Dresser Ind Carottier.
BE1015123A3 (fr) * 2002-09-26 2004-10-05 Security Dbs Ensemble destine a un carottage ou forage devie.

Also Published As

Publication number Publication date
NO20051890L (no) 2005-04-19
CA2499725A1 (en) 2004-04-08
US20070017707A1 (en) 2007-01-25
BE1015123A3 (fr) 2004-10-05
WO2004029401A1 (fr) 2004-04-08
DE60309925D1 (de) 2007-01-04
US7117958B2 (en) 2006-10-10
ATE346218T1 (de) 2006-12-15
US7320373B2 (en) 2008-01-22
US20050167158A1 (en) 2005-08-04
CA2499725C (en) 2010-05-11
EP1570150A1 (de) 2005-09-07

Similar Documents

Publication Publication Date Title
EP1570150B1 (de) Ein-marsch abgelenktes kernbohr- oder bohrsystem
EP1747344B1 (de) Bohrlocherweiterungs- und -stabilisierungswerkzeug und verwendungsverfahren dafür
EP0689637B1 (de) Verfahren und vorrichtung zur zementierung eines bohrloches
EP1934426B1 (de) Nachbohr- und stabilisierungswerkzeug für den einsatz in einem bohrloch und verwendungsverfahren dafür
EP1023522A1 (de) Kernbohrgerät
FR2507242A1 (fr) Dispositif de fermeture temporaire pour formateurs de canal d'equipement de completion de puits
BE1009965A3 (fr) Carottier.
EP1492935B1 (de) Verfahren und gerät zum kernbohren und/oder abgelenkten bohren
CA2673317C (fr) Dispositif de verrouillage pour un dispositif de forage
EP2548619A2 (de) Tragbare Vorrichtung zum schnellen Aufblasen einer Tasche
EP2102443A1 (de) Vorrichtung zur betätigung eines bohrlochwerkzeugs
BE1012557A3 (fr) Carottier.
WO2009050030A2 (fr) Dispositif de commande d ' un outil gonflable
EP0192558A1 (de) Vorrichtung zum Einordnen eines Werkzeugs oder Instruments in einem Rohr, insbesondere eine selbständige hydraulische Pumpe, die durch ein Steigrohr gewinnt
EP0588373A1 (de) Doppelkernrohr für abgelenkte Bohrungen
FR2498672A1 (fr) Procedes et outillage de forage, notamment de sondage de couches rocheuses, en utilisant un adaptateur directeur
BE1011199A3 (fr) Carottier.
FR2709326A1 (fr) Ensemble pour tubage bobiné, d'extraction sélective au gaz, pouvant être récupéré.
FR2513211A1 (fr) Coupleur d'ancrage detachable
FR2485582A1 (fr) Procede de prelevement d'echantillons du sol et appareil pour sa mise en oeuvre
BE844368A (fr) Appareil carottier du type a cable
FR2785016A1 (fr) Dispositif de fermeture pour fermer l'air comprime d'injection lors d'un forage par injection
FR2871775A3 (fr) Dispositif de securite a gonflage automatique de type veste ou gilet avec un effet amphibie
FR2575785A1 (fr) Appareil de forage equipe d'un dispositif permettant le changement de l'outil de forage sans avoir a remonter le train de tiges et comportant un dispositif d'alesage expansible
FR2539807A1 (fr) Train de tiges de forage pour forage d'exploration

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050426

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20061122

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061122

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061122

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061122

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061122

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061122

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061122

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061122

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061122

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REF Corresponds to:

Ref document number: 60309925

Country of ref document: DE

Date of ref document: 20070104

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20061219

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070222

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070222

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070223

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070305

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070423

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20070823

BERE Be: lapsed

Owner name: HALLIBURTON ENERGY SERVICES, INC.

Effective date: 20070930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070930

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070223

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070930

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070930

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20080531

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071001

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070925

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20061122

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070523

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20160712

Year of fee payment: 14

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170925

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170925