EP1108110A2 - Dispositif de forage et procede de forage d'un puits - Google Patents

Dispositif de forage et procede de forage d'un puits

Info

Publication number
EP1108110A2
EP1108110A2 EP99952442A EP99952442A EP1108110A2 EP 1108110 A2 EP1108110 A2 EP 1108110A2 EP 99952442 A EP99952442 A EP 99952442A EP 99952442 A EP99952442 A EP 99952442A EP 1108110 A2 EP1108110 A2 EP 1108110A2
Authority
EP
European Patent Office
Prior art keywords
drilling
linkage
power
support device
rod
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.)
Granted
Application number
EP99952442A
Other languages
German (de)
English (en)
Other versions
EP1108110B1 (fr
Inventor
Thorsten Dirks
Johannes Moss
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.)
THORSTEN DIRKS
Original Assignee
Bentec Drilling and Oilfield Systems GmbH
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 Bentec Drilling and Oilfield Systems GmbH filed Critical Bentec Drilling and Oilfield Systems GmbH
Publication of EP1108110A2 publication Critical patent/EP1108110A2/fr
Application granted granted Critical
Publication of EP1108110B1 publication Critical patent/EP1108110B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/20—Combined feeding from rack and connecting, e.g. automatically
    • 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
    • E21B15/00—Supports for the drilling machine, e.g. derricks or masts
    • 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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/022—Top drives

Definitions

  • the invention relates to a drilling device for a drilling rig or a drilling rig, which can be used for exploration and production drilling, in particular on hydrocarbon deposits.
  • This drilling device can be used both onshore and offshore.
  • this invention relates to a method for sinking such a bore.
  • Modern drilling rigs consist of a multitude of components, such as a lift (Drawworks), a power screwing device (Iron roughneck), a working platform (Rig floor), a pipe handling system (Pipe handler), a pipe storage (Pipe rack), a crown block with a block and a top drive, a pipe ramp and a catwalk for the drill pipe, as well as various auxiliary devices for handling.
  • the object of this invention is to propose a drilling device, a drilling system and a method with which decisive cost savings in terms of logistics and personnel costs can be achieved.
  • the object of the invention is achieved according to the invention by claims 1, 16, 21, 25 and 26. Further advantageous embodiments of the invention are specified in the subclaims.
  • the drilling device according to the invention consists of a carrying device, on or in which a power rotary head which can be displaced axially to the longitudinal axis of the carrying device, a multifunctional gripper, which can be moved perpendicular to the carrying device and guides and grips the drill pipe, the carrying device itself being rigid, preferably pivotable and / or is rotatably mounted.
  • An intermediate piece (27) or a slewing ring (9) is connected to the carrying device (1).
  • the advantages achieved with the invention consist in particular in that a drilling device is created which is exceptionally space-saving and the linkage can act independently.
  • the turntable connected to the support device or the intermediate piece advantageously absorbs the forces acting on the support device.
  • an elevator is arranged under the power turret and the handling unit, which serves to lift the boom from the vertical position.
  • the power turret is arranged on a receiving frame, which is connected to the lifting mechanism, for example, by means of a rope, which can also be reeved several times.
  • the receiving frame is moved for example by means of guide rollers in a linear guide parallel to the longitudinal axis of the support device.
  • the linear guide can be connected to the carrying device both outside and inside.
  • the power turret is designed to be displaceable with the mounting frame in a linear guide.
  • the receiving frame for the power turret can be arranged in or on the support device.
  • the tour can be carried out, for example Slide rail and sliders as well as by racks and pinions or guide rollers and guide rails are guaranteed.
  • spindle drives, hydraulic drives or even multiple chain hoists are conceivable as a possible linear drive.
  • other linear drives that result from technological progress could also be installed.
  • Another option is a cable or a pulley combination with a hoist, a pulley block, a dead rope anchor, a reserve cable drum and a crown block (bearing).
  • the support device is formed in a box structure, for. B. if it is pivotable, in a kind of swing arm.
  • the mounting of the foot of the carrying device can be on, in or below the working platform.
  • Another possibility is the installation of the carrying device including the foot on a carrier vehicle, such as. B. a mobile workover system.
  • the floor i. H. the terrain surface.
  • the working platform of the drilling device is connected to a substructure, which can consist of substructure boxes and / or substructure supports or other standard solutions (slingshot etc.).
  • a further embodiment provides that a power screwing device is arranged in the lower region of the carrying device just above the working platform, this being used for countering and breaking.
  • the power screwing device can be arranged on the support device such that it can be pivoted and / or moved.
  • the power screwing device can be arranged to be movable or pivotable on the work platform.
  • the drilling device can also be arranged displaceably.
  • the borehole head can be moved by moving it from the center of the borehole
  • Drilling device must be adjusted opposite the center of the borehole (center line).
  • this advantageous embodiment creates the possibility of the drilling device for row bores (cluster bores) z. B. offshore from
  • the supports are free-standing, which means that no additional steel structure has to be attached to the work platform to stabilize the supports.
  • a steel structure for example on the work platform, which enables the supporting device to be of a lightweight construction, since such an additional structure would increase the rigidity and achieve a high level of flexural rigidity.
  • the main forces can be derived in such a steel structure.
  • a holding device preferably a locking unit
  • This locking device can be configured by a hollow cylinder to which a flushing hose is connected and to which a valve is arranged in order to ensure the flushing supply.
  • the flushing hose is supplied to the flushing hose via a riser pipe arranged on or in the support device or on the additional steel structure. Especially when the carrying device is pivoted, it is advantageous to integrate the flushing supply into the locking device, so that the flushing is available virtually automatically and without any further work step.
  • the power rotary head is arranged such that it can rotate about a parallel axis of the support device. As a result, only a part of the drilling device and thus a lower load has to be moved in order to hold a rod.
  • the lock is released at the start of the turning process.
  • a further embodiment provides for a freely hanging flushing hose to be arranged on the free-standing support device or on the additional steel structure.
  • a lifting device which consists of one or more hydraulic or pneumatic cylinders.
  • a winch can also be used instead of a cylinder. This enables drilling at an angle of 5 to 90 degrees to the top of the terrain.
  • the construction can also be carried out section by section using a crane if no cylinders or winches are installed.
  • a particularly advantageous embodiment provides that a winch is arranged in the lower region of the carrying device, the cable of which is fastened to the receiving frame on which the power rotary head is located by means of a deflection roller.
  • the fixed role of the cable is above the winch.
  • This winch is driven by means of a drive unit, preferably consisting of an electric motor with a downstream transmission.
  • Other drives such as B. hydraulic drive are possible.
  • a preferred embodiment of the invention provides that means for pivoting the support device are arranged on the working platform of the drilling device, these preferably consisting of a pivot bearing with a bolt and a connecting element to the support device and a lifting device, unless it is set up with the aid of a crane.
  • a further advantageous development of the invention provides that an independent handling device is arranged next to and / or the working platform or next to the carrying device, which preferably consists of a carriage which is arranged to be displaceable on rails.
  • a boom unit is arranged on the carriage, which is advantageously rotatably and / or pivotably mounted in a vertical plane by means of a pivoting device and which consists of a linkage receiving unit and / or at least one holding unit, preferably a gripper.
  • the drilling device can be supplied with rod quickly and reliably automatically, in particular since the rod handling device is able to remove rods from various rod storage stocks, in particular rod boxes, and to feed them to the drilling device.
  • Such an embodiment is very particularly advantageous in combination with a drilling rig which consists of at least two drilling devices, in which case a rod handling device can be saved.
  • FIG. 4 A special embodiment of the invention, as shown in FIG. 4, will be discussed in more detail below.
  • the elevator is installed in one of the sub-boxes.
  • the reserve rope drum can also be accommodated in one of these boxes.
  • the crown bearing is fastened in the upper area of the carrying device.
  • the rope is guided through the intermediate piece of the carrying device in order not to impair a possible later rotatability of the carrying device and that To protect the rope when retrofitting a slewing ring.
  • the rope is only slightly twisted and not subjected to additional loads if a slewing ring is installed later, e.g. B. in combination with a second drilling device.
  • Another advantage of this configuration is the extremely low center of gravity of such a drilling device.
  • a further embodiment provides for a small winch to be installed in the lower region of the carrying device in order to also pull the receiving frame of the power rotary head downward, in particular if the installation of a lifting mechanism is provided as a linear drive, as is also shown in FIG. 1.
  • the rope of this small winch is attached to the lower part of the receiving frame or guided down and attached via a deflection roller attached to the receiving frame.
  • a further embodiment provides that a rod storage bearing is arranged next to the drilling device, which is arranged vertically for the rotatable variant and horizontally for the pivotable variant.
  • a drilling rig is also claimed, which is characterized in that two or more drilling devices are arranged which move or rotate or pivot alternately above the center of the borehole.
  • the advantage of such a design is that one drilling device carries out the actual drilling process and the other is supplied with rods for this process. As a result, the drilling time is reduced and the economy is optimized.
  • the drilling rigs are preferably arranged essentially point-symmetrically to the center of the borehole.
  • the drilling device loading a rod is not located above the center of the borehole, the other drilling device can connect the previously loaded rod to the drill string in the borehole and sink the borehole further. This creates the possibility of sinking the borehole almost continuously.
  • Another advantage is that the drilling rig can be operated with a minimum of drilling personnel, since these operations perform these operations almost fully automatically, particularly when handling the rods etc.
  • the two support units or drilling devices can advantageously be connected preferably by means of a rope, a chain or a kinematic chain in order to minimize the energy required for the pivotable variant of the support devices.
  • the connection of the two support units is ensured via a deflection point, for example a roller, which is arranged in the upper region of the steel structure.
  • a damping device is preferably installed on the upper steel structure in order to avoid possible resonance vibrations which could be introduced into the drilling system.
  • a damping unit could, for example, consist of a spring or a hydraulic cylinder with a throttle.
  • the method according to the invention is characterized in that, in the pivotable variant, the support device is ready in the horizontal for receiving the linkage.
  • the power turret is in the upper position and the multifunctional gripper is at the same height as the linkage, for example on the trestles.
  • the boom is rolled over the carrying device. Afterwards, the boom is gripped by the multifunctional gripper and thus locked.
  • the upper connection to the linkage is then made by means of the power turret and the handling device, which is arranged below the power turret.
  • the support device is then lifted into the vertical by means of the lifting device and the lower connection between the linkage on the support device and the linkage located in the borehole is carried out. When this position is reached, the support device can optionally be locked to a steel structure.
  • the support unit can be free-standing, in which case the support unit is locked or held in the area of the pivot or pivot point.
  • connection between the power turret shaft and the linkage is established in particular when adding the linkage when drilling.
  • the boom can only be hooked into the elevator, which is located under the rotary head, because above all the threads of the boom are protected and the operations can be carried out more quickly.
  • the lower linkage connection is ensured by the power screwing device standing on the working platform or integrated on the carrying unit, which either extends from the carrying device via the center of the borehole or via
  • the center of the borehole is pivoted by means of a hinge.
  • the power screwing device is conventional on the work platform is slidably arranged.
  • the multifunctional gripper is released and inserted into the carrying unit.
  • the power screwing device is maneuvered out of the area, the holding device is released and the drilling process is continued.
  • the power turret is lowered in the guide of the carrying device.
  • a drilling device located in the horizontal position picks up the rods while the other drilling device is drilling.
  • the horizontal drilling device can be lifted vertically by means of the lifting device.
  • the rotary turret is moved back to the upper position during the movement of the drilling device.
  • a further advantageous embodiment of the method according to the invention is possible by means of a rigid support device, as is shown for example in FIG.
  • the boom is removed from the boom storage facility using the rail-bound boom handling system and moved in the direction of the work platform.
  • the power turret is in the upper position.
  • the boom handling device tilts the boom in the direction of the carrying device, the power head and the elevator as well as the handling system is lowered to a height at which the elevator can enclose the boom.
  • the elevator comprises the linkage.
  • the multifunctional gripper extends from the carrying device and encloses the linkage so that it is fixed in its position but can be moved in the vertical direction.
  • the linkage in the elevator is then suspended by the linear drive, whereby the multifunctional gripper guides and controls the linkage in the lower area and moves it into the support unit in coordination with the travel in the linear guide.
  • the upper connection between the drive shaft and linkage is carried out with the aid of the handling device or by means of a screwing and locking device.
  • the rod is then lowered and the connection to the rod located in the borehole is carried out by means of the power screwing device.
  • the multifunctional gripper is then retracted, the holding device released and the drilling process continued.
  • the linkage in the elevator can first be screwed to the linkage located in the borehole and only then connected to the power turret by means of the handling device or a screwing and locking device located on the power turret.
  • a further process step provides that the boom is transported to the defined pick-up point by means of the rail-bound boom handling device.
  • the carrying device rotates about the longitudinal axis of itself with the help of the built-in turntable and stops exactly above the pick-up point.
  • the power turret is in the upper position of the carrying device.
  • only the rotary power head can be pivoted or rotated from the receiving frame to a defined pick-up point.
  • Elevator lowered.
  • the elevator is swung out during lowering.
  • the multifunctional gripper is extended from the carrying device and also encloses the linkage. This serves to hold the linkage at two points and to avoid slagging when handling it further.
  • the linkage is then raised parallel to the linear guide by means of the elevator moving upwards until the rotary head has reached the upper position.
  • the support device is pivoted over the center of the borehole.
  • the upper connection between the drive shaft and the linkage by means of a screwing and counter device or with the aid of the handling device can take place during this lifting and rotating movement in order to optimize the times as a whole.
  • the lower connection is then carried out with the aid of the power screwing device and the power screwing device is then maneuvered out of the area of the center of the borehole.
  • the multifunctional gripper is inserted into the carrying unit, the holding device is released and the drilling process continues.
  • one drilling device can take up a new rod and the other can drill, so that almost continuous drilling is ensured. Appropriate control prevents the rotating drilling devices from colliding.
  • screwing to the drive shaft of the power turret is normally not necessary.
  • rods instead of rods, individual boring bars, casings, pipe tours, piping or pipe-like objects can also be used.
  • FIGS. 1-10 Exemplary embodiments for the rigid variant with a drilling device and rail-bound rod handling system or the rotatable variant with two drilling devices and rod handling system (vertical pipehandler / horizontal pipehandler possible) are explained in FIGS. 1-10. Show it:
  • FIG. 1 shows the side view of the carrying device
  • FIG. 2 shows the front view of a carrying device
  • FIG. 3 shows the top view of the upper part of a rotatable carrying device
  • Figure 4 is a side view of a drilling device with a support device
  • FIG. 5 shows the front view of a drilling rig
  • FIG. 6 the top view of a rigid drilling device
  • FIG. 7 shows a rail-bound boom handling device (for horizontal or vertical boom bearings),
  • FIG. 8 shows a front view of a drilling rig
  • FIG. 9 is a top view of a drilling rig with two drilling devices
  • Figure 10 is a side view with two drilling devices with slewing rings.
  • FIGS. 1, 2, 4, 5, 6, 8, 9 and 10 the receiving frame 4 with the rotary head 2 and the handling device 5 or the linkage handling device 23 are shown in two different positions, one position being shown in broken lines.
  • the deflection roller 11 is not shown in the dashed representation of the receiving frame and the rotary power head.
  • FIG. 1 shows the side view of the carrying device 1 with the power turret 2, the linear guide 3 attached to the carrying device, the mounting frame 4 for the power turning head, the handling device under the power turret 5 and the elevator 6 for the boom take-over.
  • a screwing and locking device is optionally arranged below the power turret in order to firmly screw a rod fed by means of the handling device to the shaft of the power turret, or e.g. B. break the connection between the turret and linkage again when removing the boom.
  • Struts 42 of the support device 1 are envisaged, which improve the statics of the support device.
  • the crown bearing 7, which is integrated in the upper area of the carrying device is shown.
  • the rope 13 is guided through the slewing ring 9 by means of the bushing 8 so as not to change the position of the rope during the rotational movement.
  • the slewing ring 9 is mounted under the carrying device 1 and is firmly connected to the work platform.
  • a winch 10 is installed in the lower region of the support device 1.
  • the rope (not shown) of this winch is passed over a deflection roller 11 in order to utilize the rope pull effect.
  • the multifunctional gripper 12 which grips and guides the linkage and is horizontally displaceable, is shown as a further assembly.
  • the flushing hose 15 is indicated, which in this example hangs partly freely.
  • a connecting element 105 is arranged on the slewing ring, on which a rigid holding element, in this case a strut 103, is attached by means of pillow block 104 and bolts.
  • the other end of the strut 103 is firmly connected on one side of the support device 1.
  • Another connecting element 110 contains a further pillow block 104 and establishes the connection to the carrying device 1 by means of bolts. As a result, the entire support device can be held vertically.
  • other connecting elements with which the carrying device 1 can be held are conceivable.
  • FIG. 2 shows the front view of the carrying device 1 with the power rotary head 2, the receiving frame 4, the handling device 5 and the elevator 6. Furthermore, the crown bearing 7 is also indicated here. In the middle of the carrying device 1 one can see the rope 13, which is guided in the lower area through the bushing 8 through the turntable 9.
  • the flushing hose (shown in FIG. 1, not shown here) is connected to the pipe connection 16 in order to introduce the flushing into the power turret.
  • the winch 10 is mounted in the lower part of the carrying device 1 and is driven, for example, by an electric motor with a downstream transmission (drive unit 14).
  • Figure 3 shows the top view of a rotatable support device 1 with the linear guide 3, in which the receiving frame 4 with the rotary head 2 mounted thereon is guided by means of guide rollers.
  • the dashed quarter-circle line represents the pivot line 30 for this arrangement up to a fictitious pick-up point 28.
  • the drive shaft 45 like the cover 43 of the power turret, is only indicated.
  • FIG. 4 shows the side view of the drilling device with a carrying device corresponding to FIG. 1.
  • the slewing ring is not required.
  • a simple manner a drilling device
  • the work platform 21 which serves to receive the intermediate piece 27, as well as the substructure boxes 19 and the support 22, which serve to support the
  • Sub-box can be installed, shown.
  • the rope 13 is always positively guided over the liver grooves of the elevator drum with the help of the carriage 18.
  • the rods are fed or picked up by means of the preferably rail-bound rod handling device 23, which opens the rails 24 can be moved and the linkage 25 transported and adjusted.
  • cross struts 42 which improve the statics of the box structure of the carrying device 1.
  • a closed box construction can also be used.
  • the rod assembly is removed from a rod storage unit (not shown) by means of the rod handling device 23 and fed to the drilling device via the rails 24.
  • the linkage 25 is fed by means of a gripper 125 to the linkage receiving unit 122 to such an extent that it can be grasped by the elevator 6, which moves down into the corresponding position.
  • the boom ramp 126 is optionally arranged.
  • 123 denotes a swivel device with which the boom 124 can be moved in a vertical plane.
  • 129 quantifies the blow-out-preventer (BOP) stack, above borehole 130, not shown.
  • BOP blow-out-preventer
  • the power screwing device 20 is shown as an example, which was mounted in this form on the work platform 21. Furthermore, the power rotary head 2 is shown with the handling device 5 underneath. The rope 13 is always positively guided by the carriage 18 over the liver groove of the elevator 17, so that from this device the rope 13 is safely guided through the bushing 8 to the crown bearing 7.
  • the carrying device 1 is connected to the work platform 21 by the intermediate piece 27.
  • the driver's cabin 127 arranged thereon is also indicated.
  • FIG. 6 shows the top view of the rigid drilling device on the work platform 21.
  • the top view shows the lateral arrangement of the power screwing device 20.
  • the rods are removed from the vertical rod boxes 26 by the rail-bound rod handling system 23, which moves on the rails 24, and fed to the drilling device. With this arrangement of the vertical rod boxes 26, any storage capacity can be achieved.
  • FIG. 7 shows the rail-bound rod handling device 23. It is possible to store the rod 25 in vertically standing or horizontally lying (not shown) rod boxes 26 or to remove them from these.
  • the rods 25 are guided or fixed by fingers or transport brackets 128 during transport or loading or unloading from the rod boxes.
  • the individual rods 25 are removed from the boxes 26 by means of the rod handling device 23.
  • the boom receiving unit 122 is brought to the boom 25 with two grippers 125 by means of the arm 124, which can pivot in a vertical plane by the pivoting device 123, and the boom 25 is gripped.
  • the boom 124 is then pivoted back.
  • carriage 121 is moved on rails 24 toward the drilling rig (not shown).
  • a rotating device 120 is provided, with which the boom 124 can be rotated with the boom mounting unit 122 on the carriage 121, for example in order to reach a specific pick-up point 28.
  • the linkage mounting unit 122 such that it can be moved so that short lifting movements are possible in order to be able to remove the linkage 25 more easily from the transport holder.
  • Figure 9 shows the top view of the drilling rig according to the invention with two
  • the one drilling device 40 has been pivoted in over the center of the borehole 130 and is just ending the drilling process and the other drilling device
  • the power screwing device 20 is arranged centrally in order to break or connect the connections in an advantageous manner.
  • Handling device 5 (not shown) with the underlying elevator 6 (not shown).
  • FIG. 10 shows the side view with the double drilling devices 40, 41 corresponding to FIG. 1 (swung out, 41) and FIG. 2 (swung in, 40), which are fastened on the two turntables 9 on the work platform 21.
  • This version of the drilling system has two lifts 17 and two ropes 13, only the elevator 17 and the rope 13 of FIG. 10 being shown in FIG.
  • Drilling device 40 is shown.
  • the drilling device 40 is optionally schematically shown pivotably from the vertical to the horizontal position, with 107 being the

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  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Drilling Tools (AREA)
  • General Induction Heating (AREA)

Abstract

Dispositif de forage pour une installation de forage et en particulier installation de forage qui peut être utilisée pour les puits d'exploration et productifs, en particulier pour des gisements d'hydrocarbures. Ledit dispositif peut être utilisé aussi bien sur terre qu'en mer. La présente invention concerne en outre un procédé de forage d'un tel puits. Le dispositif de forage selon la présente invention comporte un mécanisme de support dans lequel ou sur lequel sont placés une tête de rotation coulissant axialement par rapport à l'axe longitudinal du mécanisme de support et un grappin qui peut être déplacé perpendiculairement par rapport au mécanisme de support et qui saisit et guide les tiges de forage, le mécanisme de support étant lui-même rigide et monté de préférence basculant et/ou rotatif. Un élément intermédiaire (27) ou une couronne de pivotement (9) est relié au mécanisme de support (1). La présente invention permet avantageusement d'obtenir un dispositif de forage extrêmement peu encombrant pouvant manipuler les tiges de manière autonome. Elle concerne également une installation de forage caractérisée en ce qu'elle comporte deux dispositifs de forage ou plus qui se déplacent ou tournent ou basculent en alternance au milieu du trou de forage.
EP99952442A 1998-08-19 1999-08-19 Dispositif de forage et procede de forage d'un puits Expired - Lifetime EP1108110B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19837692 1998-08-19
DE19837692A DE19837692C2 (de) 1998-08-19 1998-08-19 Bohrvorrichtung, Bohranlage und Verfahren zum Abteufen einer Explorations- und Förderbohrung
PCT/DE1999/002599 WO2000011308A2 (fr) 1998-08-19 1999-08-19 Dispositif de forage et procede de forage d'un puits

Publications (2)

Publication Number Publication Date
EP1108110A2 true EP1108110A2 (fr) 2001-06-20
EP1108110B1 EP1108110B1 (fr) 2003-11-12

Family

ID=7878074

Family Applications (2)

Application Number Title Priority Date Filing Date
EP99952441A Expired - Lifetime EP1105619B1 (fr) 1998-08-19 1999-08-19 Dispositif de forage et procede de forage d'un puits
EP99952442A Expired - Lifetime EP1108110B1 (fr) 1998-08-19 1999-08-19 Dispositif de forage et procede de forage d'un puits

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP99952441A Expired - Lifetime EP1105619B1 (fr) 1998-08-19 1999-08-19 Dispositif de forage et procede de forage d'un puits

Country Status (7)

Country Link
US (2) US6581698B1 (fr)
EP (2) EP1105619B1 (fr)
AT (2) ATE254236T1 (fr)
CA (2) CA2344034C (fr)
DE (3) DE19837692C2 (fr)
NO (2) NO317594B1 (fr)
WO (2) WO2000011306A2 (fr)

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NO312560B1 (no) * 2000-08-21 2002-05-27 Offshore & Marine As Intervensjonsmodul for en brönn
US6763898B1 (en) * 2002-08-06 2004-07-20 Itrec B.V. Dual hoist system
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EP1105619A2 (fr) 2001-06-13
WO2000011306A2 (fr) 2000-03-02
CA2344034C (fr) 2008-01-15
DE19837692C2 (de) 2003-04-03
NO20010811D0 (no) 2001-02-16
WO2000011308A3 (fr) 2000-05-25
CA2344034A1 (fr) 2000-03-02
ATE254236T1 (de) 2003-11-15
NO20010810D0 (no) 2001-02-16
US6581698B1 (en) 2003-06-24
DE59907313D1 (de) 2003-11-13
NO317594B1 (no) 2004-11-15
US6857483B1 (en) 2005-02-22
WO2000011306A3 (fr) 2000-04-13
ATE251711T1 (de) 2003-10-15
DE59907737D1 (de) 2003-12-18
EP1108110B1 (fr) 2003-11-12
EP1105619B1 (fr) 2003-10-08
NO320520B1 (no) 2005-12-12
NO20010811L (no) 2001-04-18
DE19837692A1 (de) 2000-03-02
WO2000011308A2 (fr) 2000-03-02
CA2362866A1 (fr) 2000-03-02
CA2362866C (fr) 2009-12-15
NO20010810L (no) 2001-02-16

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