WO2016140614A1 - Dispositif et procédé de forage de roche - Google Patents

Dispositif et procédé de forage de roche Download PDF

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Publication number
WO2016140614A1
WO2016140614A1 PCT/SE2016/050159 SE2016050159W WO2016140614A1 WO 2016140614 A1 WO2016140614 A1 WO 2016140614A1 SE 2016050159 W SE2016050159 W SE 2016050159W WO 2016140614 A1 WO2016140614 A1 WO 2016140614A1
Authority
WO
WIPO (PCT)
Prior art keywords
drill string
key grip
grip device
sensor
string component
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.)
Ceased
Application number
PCT/SE2016/050159
Other languages
English (en)
Inventor
Andreas STRÅHT
Fredrik JORMVIK
Jörgen RIISOM
Anders Nilsson
Mikael FRANZÉN
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.)
Epiroc Rock Drills AB
Original Assignee
Atlas Copco Rock Drills AB
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 Atlas Copco Rock Drills AB filed Critical Atlas Copco Rock Drills AB
Priority to CA2973951A priority Critical patent/CA2973951C/fr
Priority to AU2016226645A priority patent/AU2016226645B2/en
Publication of WO2016140614A1 publication Critical patent/WO2016140614A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/165—Control or monitoring arrangements therefor
    • 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
    • E21B19/18—Connecting or disconnecting drill bit and drilling pipe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING, OR HOLDING
    • B25B13/00—Spanners; Wrenches
    • B25B13/48—Spanners; Wrenches for special purposes
    • B25B13/50—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes
    • B25B13/5008—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects
    • B25B13/5016—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe
    • B25B13/5025—Spanners; Wrenches for special purposes for operating on work of special profile, e.g. pipes for operating on pipes or cylindrical objects by externally gripping the pipe using a pipe wrench type tool
    • 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
    • E21B19/16—Connecting or disconnecting pipe couplings or joints
    • E21B19/167—Connecting or disconnecting pipe couplings or joints using a wrench adapted to engage a non circular section of pipe, e.g. a section with flats or splines
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D3/00—Raising shafts, i.e. working upwards from the bottom

Definitions

  • the invention relates to a boring machine for driving a drill string, wherein the boring machine includes: a driving head being movable in an axial direction towards respectively from a holding table for axially driving the drill string, a rotator arranged in the driving head for rotational driving the drill string, a drill string chuck associated with the rotator, a first key grip device arranged in connection with the holding table, a second key grip device arranged in connection with the rotator.
  • the invention also relates to a corresponding method. Background of the invention
  • a pilot hole is drilled in a direction from the boring machine to an accessible space wherein a reamer bit is fastened to the free end of the drill string.
  • reaming is performed by driving the drill bit during rotation in the direction towards the boring machine, whereby the drill bit disintegrates the rock.
  • drill string components/drill tubes which during driving from the boring machine is successively added to the drill string and during driving towards the boring machine are successively released
  • the drill string is secured at the holding table. This is made by the operator correctly positioning a key grip to the drill string component for engagement of a key grip device which is often referred to as "table key grip", at the holding table. Thereupon the engagement between the drill string chuck of the rotator and the uppermost drill string component is broken by reversing the rotator. The rest of the drill string is now thereby rotation locked by the first key grip .
  • a further key grip device in the area of the driving head, will be in a position to engage with the key grip of the drill string component for breaking and de-threading the thread between this uppermost drill string component and the
  • the released drill string component is thereupon moved from the drill string position to a component storage.
  • the drill head is moved with its rotator and the drill string chuck axially to engage the thread belonging to the now uppermost component of the drill string, which is still locked by the first key grip device at the holding table .
  • the process will subsequently proceed with maintained reaming.
  • the next drill string component has reached a position above the holding table, the above described sequence is repeated.
  • the described method is time, precision and work demanding which altogether results in an extensive and thereby costly boring process.
  • EP 2 487 325 A2 describes a system for machine-supported positioning and applying a key device at a raiseboring machine.
  • WO2014/133440 relates to a method and a boring arrangement for holding drill string means.
  • a boring machine of the kind defined above includes a first sensor arrangement arranged in the region of the holding table for detecting a first rotational position of a key grip of a drill string component, a second sensor arrangement for detecting a second rotational position of the second key grip device, and a memory for storing data representing the second rotational position .
  • the second key grip device is coupled to the rotator/drill string chuck in order to be rotatable together therewith for releasing, through rotation, the lower thread when the first key grip device is initiated.
  • a calculating unit is arranged to determine an angle between the second rotational position and a rotational position of the first key grip device and thereby an angle between the second rotational position and said key grip starting out from said data
  • the second sensor arrangement includes at least one sensor on the driving head, which is arranged to cooperate with at least one detect indicator in connection with the second key grip device.
  • said first and second sensor arrangement each includes respectively at least one sensor from the group; optical sensor, inductive sensor, capacitive sensor, Hall-effect sensor, magnetostrictive sensor and purely mechanical rotation detecting sensor.
  • This sensor is arranged to co-operate with a detect indicator and preferably with a plurality of detect indicators, each one in respect of the chosen sensor principle being comprised of a contrasting marking, a nob, a recess, an element with deviating technical properties such as a magnet or an element of magnetizable material etc.
  • the first sensor arrangement preferably includes, in a simple embodiment, at least one light emitter and an optical sensor positioned such that a light beam or light beams there-between have free passage when a key grip is in a correct height position and rotational position. When no key grip is in correct height and rotational position, the light beam there between is broken.
  • the second sensor arrangement is preferably arranged to detect the second rotational position of the second key grip device in a condition of not initiated tightening connection between the drill string chuck and an upper thread of a drill string component being fastened by the first key grip device.
  • the boring machine is hereby preferably arranged, with the drill string chuck, firstly to establish rotational tightening connection with said upper thread of a drill string component being fastened by the first key grip device, by rotating to a contact positon, wherefrom is reversed during angle
  • the calculated angular difference is now stored in the memory.
  • the boring machine is further preferably arranged for
  • the boring machine preferably being arranged, in connection with breaking said upper thread between the pulled-up drill string component and the drill string chuck, after breakage firstly rotate the thread until the contact positon has been reached, which as above is detected in that the threshold torque value is reached. Thereupon the drill string chuck is re-rotated (reversed) the angle A until the angle has been reached, which has been calculated as the deviation of the upper key grip device from the upper key grip.
  • Rotation through re-rotation is thereby performed such an angle that it is in principle possible for the second key grip device to come to alignment with the key grip in question in order to quickly find an engagement therewith upon engagement initiation .
  • a search sequence is performed with a searching pattern to and fro under small but growing rotational angles of the rotator to find a correct engagement position.
  • a signal is emitted meaning that manual assistance has to be used.
  • the boring machine preferably includes a drill string
  • component handler including a gripper for gripping and a maneuvering arm for displacing drill string components. Also this gripper and this maneuvering arm are preferably automatically controllable for minimizing the requirement of manual resources.
  • the gripper includes a rotation sensor such as a detector wheel for detecting rotation of a gripped drill string component.
  • a rotation sensor such as a detector wheel for detecting rotation of a gripped drill string component.
  • the first key grip device is arranged displaceable and permanent non-rotational in respect of the holding table.
  • the first key grip device hereby
  • an inactive position preferably is arranged linearly displaceable between an inactive position and an active position, which is an
  • the first key grip device is in such a preferred embodiment preferably arranged displaceable along linear guides being arranged on the holding table between these positions and is thereby permanently non-rotationally coupled to the holding table.
  • the displaceability is suitably performed by a pair of hydraulic cylinders .
  • the invention also relates to a method for handling drill string components in a boring machine for driving a drill string, the method including: axially driving the drill string with a driving head being movable in an axial direction towards respectively from a holding table, rotational driving the drill string with a rotator arranged in the driving head, detecting a first rotational position of a key grip of a drill string component with a first sensor arrangement arranged at (or in association with) a first key grip device at or in association with the holding table, rotating the drill string until the key grip is aligned with the first key grip device, engaging the first key grip device with said key grip.
  • the Method is distinguished by detecting a second rotational position of a second key grip device arranged in connection with the rotator through a second sensor arrangement, and storing data representing the second rotational position in a memory.
  • the method according to the above preferably includes
  • Said second rotational position is preferably detected by at least one sensor from the group: Optical sensor, inductive sensor, capacitive sensor, Hall-effect sensor,
  • Starting out from said data representing the second rotational position preferably is determined an angle between the second rotational position and a rotational position of the first key grip device and thereby an angle between the second rotational position and said key grip.
  • the second rotational position of the second key grip device is preferably detected in a condition of not initiated
  • Tightening connection is advantageously established with said upper thread of a drill string component being fastened by the first key grip device by tightening it to a position for tightened thread according to what is explained above, whereupon the reaming operation is performed.
  • the first key grip device After performed reaming operation corresponding to the length of a pulled-up drill string component, advantageously is initiated the first key grip device to engage with a (lower) key grip of next drill string component after completed reaming operation corresponding to the length of a pulled-up drill string component, and is initiated breaking of the thread between the upper thread and the drill string chuck.
  • the second key grip device After further rotation according to the above, is preferably engaged in the (upper) key grip of the pulled-up drill string component, and the thread is broken between the pulled-up drill string component and next drill string component.
  • a released drill string component is gripped and displacing preferably with a drill string component handler including a maneuvering arm with a gripper.
  • rotation of a gripped drill string component is detected with a rotation sensor such as a detector wheel belonging to the gripper.
  • displacing the first key grip device is between inactive and active position in respect of the holding table.
  • rotation of the second key grip device and the drill string chuck is together when these components are permanently interconnected to each other.
  • Fig. 1 illustrates a raiseboring machine in a side view
  • Fig. 2 shows in a detail view respectively partly in section the raiseboring machine in fig. 1 in greater scale
  • FIG. 3 illustrates diagrammatically a rotational sequence in connection with thread tightening respectively thread release
  • Figs. 4a and b illustrate a device for cleaning
  • Fig. 5 illustrates the drill string chuck and the principle of the second sensor arrangement
  • Figs. 6a, b and c show the holding table with the first key grip device and the principle of detecting an adequate
  • Fig. 7 illustrates diagrammatically a method sequence
  • the boring machine 1 being illustrated in fig. 1 is a
  • raiseboring machine being constructed for driving in
  • the boring machine 1 comprises a holding table 5 resting on a substructure in turn including means for fastening the boring machine to a substrate such as a surface of a rock formation 3.
  • the boring machine can be set-up for being directed for action in different directions.
  • a driving head 6 is axially movable in directions of the double arrow A and is arranged to drive a drill string 8 for forming a pilot bore hole 4 respectively a reamed shaft or the like (indicated with interrupted lines and referenced 4 ' ) in the rock formation 3.
  • the position of the driving head 6 is detected through a length sensor arrangement 125 which is capable of emitting signals for calculating for example in which position the uppermost drill string component is situated in respect of the holding table.
  • a drill string component handler 19 Beside the boring machine 1 is shown a drill string component handler 19 for introducing respectively taking out drill string components to or from a drill string position in the boring machine 1.
  • the drill string component handler 19 includes a gripper 20 which is supported by a maneuvering arm 21. The latter is capable of displacing a gripped drill string component between said drill string position and a storage or the like.
  • the gripper 20 provides a rotational sensor in the form of a detector wheel 22 being arranged such that is can be brought to contact a drill string component such that it thereby is capable of detecting if a drill string component is put into rotation. This way it can be established, upon rotation of the drill string chuck, that the drill string component is not rotating and thereby be verified that breaking of a thread between the drill string chuck and the uppermost drill string component has been adequately performed and been successful.
  • FIG. 2 is shown in more detail parts of the boring machine 1 with the driving head 6 being movable axially according to the double arrow A.
  • the holding table 5 is shown with a first key grip device arranged in connection therewith, which is shown in fig. 2 inserted to and in engagement with a lower key grip 24 on the drill string component 7.
  • An upper key grip on said drill string component 7 is indicated with reference 14.
  • the driving head 6 supports a rotator 9 which is
  • a male thread on the (uppermost) drill string component 7 being fastened by the first key grip element 11 is indicated with 18.
  • Fig. 2 shows the position prevailing when a drill string component has been removed from the drill string and the driving head is on its way towards the holding table in order to initiate the rotator to thread the drill string chuck 10 onto the thread 18 in order to perform a new reaming operation corresponding to the length of a drill string component.
  • the first key grip device 11 is initiated in order to grip a lower key grip on the next drill string component .
  • a second key grip device 12 which is arranged to cooperate with the upper key grip 14 of a drill string
  • the second key grip device 12 is non-rotationally coupled to the rotator and the drill string chuck but axially displaceable in order to be put into or out of engagement with said upper key grip 14.
  • the second key grip device 12 is equipped with four engagement jaws 37 (three shown) being distributed in the rotational direction, which are radially movable in order to engage in, in inward positions,
  • the 13 indicates a first sensor arrangement being arranged in connection with the first key grip device 11 on the holding table 5 for detecting height and rotational position of the upper key grip 14 (alternatively the lower key grip 24) of a drill string component.
  • the first sensor arrangement is capable of detecting the position of the key grip 14/24 for allowing that the drill string is rotated and axially moved to such an extent and to such a position that the first key grip device will be capable of being initiated to engagement with the lower key grip 24.
  • a second sensor arrangement 15 for arranged.
  • a second rotational position namely a rotational position of the second key grip device 12.
  • This can preferably be used in a tightened position of the drill string chuck 10 with the thread 18 to relate the second rotational position of the second key grip device 12 to a rotational position of said upper key grip 14 of the same drill string component when the latter is fastened in the first key grip device.
  • a CU calculating unit 16 is arranged for handling data delivered from said sensor arrangement and for communication with a circuit for initiating the rotator 9, the two key grip devices 11, 12, the axial driving of a driving head etc.
  • An associated memory is referenced 17.
  • the drill string chuck 10 is indicated with interrupted lines in fig. 2 but is shown more clearly inside the second key grip device 12 on fig. 5.
  • Fig. 3 illustrates by way of a rotation angle specification diagrammatically a sequence to produce a relation between the key grip and the second key grip device during tightening of the drill string chuck to a male thread.
  • the sequence is performed with lowered drill string chuck 10 for tightening therewith with the upper thread 18 in a position shown in fig. 2.
  • the sequence is started by the chuck being rotated “forward” according to the arrow ROT for reaching a contact position K when the thread is "lightly” tightened.
  • angular measuring during de-tightening rotation is started, that is the chuck is rotated “backwards” the angle A to a position when the second sensor arrangement 15 signals because a detect indicator or a "flag" is detected (see fig. 5, detect indicator 25 is detected by sensor 45) , which in fig. 3 is indicated with a position I.
  • the angular difference between the key grip of the drill string component 7 and the second key grip device can now be calculated and this
  • the thread connection between the drill string chuck 10 and the thread 18 in fig. 2 is thereupon tightened to a position for tightened thread G to a required torque for the boring operation an angle B.
  • reaming is performed as described above until the uppermost drill string component as a whole is above the holding table 5 and the first key grip device 11 can be initiated. This can be made after that from the first sensor arrangement 13 there has been received signals that the upper key grip 14 of the next drill string component is in a correct position for this initiation of the first key grip device 11.
  • the thread between the drill string chuck and the uppermost drill string component can now be broken be reversing the rotator 9 and rotating the angle C.
  • the gripper 20 is inserted for co-operation with this drill string component, whereby the detector wheel 22 by contact with this drill string component 7 verifies that the drill string component is not rotated when the rotator 9 is rotating which means that the correct thread has indeed been broken.
  • the thread is subsequently rotated the angle D again to the contact position K.
  • the thread connection between the uppermost drill string component 7 and the next drill string component, which is held in the holding table 5, can be broken by reversing the rotator 9 and the second key grip device 12.
  • the drill string component 7 is now freed by releasing the second key grip device 12 and thereupon removal of the now free drill string component is performed by the aid of the drill string component handler 19 and moving of the drill string component to a storage.
  • a search sequence is performed meaning that it is made a search pattern to and fro with increasing rotational angles of the rotator 9 and the second key grip device 12 in order to find an adequate
  • Figs. 4a and b show more clearly the unit 33 for cleaning and lubricating the male thread 18 of a drill string component.
  • the unit 33 is very important to guarantee adequate tightening of two drill string components and in order to avoid unwanted permanent tightening therebetween.
  • the unit 33 is
  • the unit 33 includes three groups of brushes for cleaning and lubricating that are supported by a downward open body such that the entire unit can be brought enclosingly in order to enclose the thread to be treated.
  • the first group includes a number of rotational steel brushes 38 set for action against the shoulder 39 of the drill string component to be treated.
  • These brushes 38 of the first group are constructed cup-shaped and rotational around respective axes which are parallel to the axis of the drill string component to be treated. With their respective brushes
  • a second group of brushes 40 and a third group of brushes 41 are constructed and arranged for lubricating the thread 18 and the shoulder 39. It should be noted that the brushes 40 and 41 are axially displaceable in respect of the body of the unit 33 and thereby in respect of the first group of brushes 38, which is evident from the two mutual positions shown in figs. 4a and b. Hereby is ensured alternate activation of the brushes 38 (setting according to fig. 4a) or the brushes 40 and 41
  • the second group of brushes 40 are arranged with the bristles directed essentially in a direction in parallel with the axis of the drill string component whereas the third group of brushes 41 are arranged with the bristles being angled for adaption to the cone angle of the thread.
  • the arrangement is set for lubricating the brushes 40 and 41.
  • This arrangement can for example include grease sprayers for co-operation with the brushes 41 and a grease tray, into which the brushes 40 are dipped.
  • a cleaning and treatment sequence includes:
  • the brushes 40 and 41 of the unit 33 are filled with lubricator grease by a grease spray being introduced in the inside of the brush package and the second group of brushes are dipped into a grease tray.
  • the unit 33 is swung into the drill string position.
  • the unit 33 is pressed axially downwards towards the thread and the shoulder to be treated during rotation of the brush package, with the brushes in the position shown in fig. 4a for cleaning the shoulder.
  • the unit 33 is pulled up axially at the same time as the second and third group of brushes 40 and 41 are axially brought downwards for lubrication as is shown in fig. 4b.
  • Fig. 4a also shows diagrammatically the principle of the first sensor arrangement 13 for detecting an adequate height
  • 34 ' is an emitter of a light beam 36 ' which is detected by an optical sensor 35'.
  • Fig. 5 shows in greater detail the second key grip device 12 with the four engagement jaws 37 being distributed in
  • the engagement jaws 37 co-operate for their activation, that is their radial positions for engagement with the key grip of the drill string component, with the activation ring 42.
  • This activation ring is coupled to the four engagement jaws 37 with (not shown) link means such that a movement downwards of the activation ring results in a movement radially inwards of the engagement jaws 37. In its most downward position, the
  • activation ring 42 is positioned radially outside the
  • a swingable maneuvering fork 43 engages a ring-shaped groove radially most outwardly on the activation ring 42.
  • hydraulic cylinder 44 is pressurized at its respective sides in order to provide the maneuvering fork 43 a swinging
  • Fig. 5 also shows a principle of the function of the second sensor arrangement 15 whereby at least one sensor 45 such as a Hall-effect sensor, a magnetostrictive sensor, a capacitive sensor, an inductive sensor, an optic sensor or a purely mechanical rotation detecting sensor is arranged to co-operate with the plurality of detect indicators 25 in the form of for example flags, notches or the like arranged in connection with, on or associated with the second key grip device 12.
  • the detect indicators 24 are positioned in line with a central portion of each one of the four
  • detect indicators 25 can be of different kinds depending on type of sensor arrangement being used.
  • the first key grip device 11 is arranged linearly displaceable between an inactive position, which is shown in figs. 6a and b and an active position or engagement position which is shown in fig. 6c.
  • the first key grip device 11 is arranged
  • the displaceability is performed by a pair of hydraulic cylinders.
  • the first sensor arrangement 13 includes in this embodiment two orthogonally arranged sensor devices. W
  • an optical signal in the form of light beams 36 ' and 36' ' being generated by light emitters 34 ' and 34'' can be registered by optical sensors 35 ' and 35' ' respectively of the first sensor arrangement, whereas an erroneous rotational position (6a) of the upper key grip 14 makes that such an optical signal is blocked. It is understood from these figures that also at an erroneous position in height of the upper key grip 14, such an optical signal will be blocked.
  • the light beams 36' and 36' ' can also be at different heights.
  • the first key grip device 11 With the upper key grip 14 in adequate rotational position (fig. 6b) and height position in respect of the holding table 5, verified by the optical sensors 35' and 35 ' ' respectively of the first sensor arrangement, the first key grip device 11 can now be inserted into engagement with the upper key grip 24 which is shown in fig. 6c.
  • Fig. 7 illustrates a method sequence according to an
  • Position 26 indicates the start of the sequence.
  • Position 27 indicates that in connection with establishing a tightening co-operation between the drill string chuck and an upper thread of a drill string component being held by the first key grip device, sense a second rotational position of the second key grip means through the second sensor arrangement, and storing of data in respect of the second rotational position.
  • Position 28 indicates freeing of the first key grip device and performing a reaming operation corresponding to the length of a drill string component.
  • Position 29 indicates after performed reaming operation detecting a first rotational position of a key grip on next drill string component through the first sensor arrangement, rotation and displacing the drill string until the key grip is aligned and applying the first key grip device into said key grip .
  • Position 30 indicates breaking of a thread between the pulled- up drill string component and the drill string chuck.
  • Position 31 indicates initiating the second key grip device to the upper key grip of the pulled-up drill string component starting out from said stored data, breaking a thread between the pulled-up, uppermost drill string component and next drill string component and taking away the free drill string
  • Position 32 indicates the end of the sequence.
  • the drill string with drill bit and connected rotator will continue to rotate a certain angle because of the inertia in the system.
  • This continued rolling is preferably estimated repeatedly during the process and is taken into account when applying the first key grip device 11 with the aid of the first sensor arrangement 13. Further steps can also be preferred according to what is explained in the above description.
  • the invention can be further modified within the scope of the following claims.
  • the principle of the invention can thus be used in different types of boring machines such as besides reaming boring also for so called slot boring, wherein a plurality of partly overlapping holes are bored side by side.
  • the principle is useable during raiseboring and box boring. It should be understood that boring can be performed in all directions with the boring machine directed downwards
  • the boring machine can be set inclining for boring with different angles to the vertical direction as well as to the horizontal plane.
  • uppermost drill string component not necessarily has to mean uppermost positioned drill string component but sooner the drill string component being closest to the driving head.
  • the invention has mainly been described starting out from the reaming process when drill string components are successively taken away from the drill string. This process is the most complicated and requires the most of measures to be automated.
  • a boring machine according to the invention can advantageously be used automatically also during adding drill string
  • the second sensor arrangement 15 for detecting a second rotational position of the second key grip device 12 is associated with any part of the rotator and emits an indirect value of the second rotational position.
  • Sensing rotation of a drill string component 7 for verifying adequate breaking of the thread between the drill string chuck and the drill string component can also be accomplished through other rotation sensor means than through a detector wheel 22 belonging to the gripper 20.
  • an optical sensor can be arranged separately on the rig.
  • the method can be realized with drill string components with only one key grip but it is preferred that the drill string components provide un upper and a lower key grip in order to enhance gripping with the two key grip devices.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)

Abstract

L'invention concerne une machine de forage (1) pour entraîner un train de tiges (8), la machine de forage comprenant : une tête d'entraînement (6) qui peut se déplacer dans une direction axiale respectivement depuis une table de maintien (5) pour entraîner axialement le train de tiges (8), un rotateur (9) pour entraîner le train de tiges (8), un mandrin de train de tiges (10), au niveau de la table de maintien (5), un second dispositif de prise de clé (12) au niveau du rotateur (9). Un premier agencement de capteur (13) dans la région de la table de maintien (5) pour détecter une première position de rotation d'une prise de clé (14 ; 24) d'un élément de train de tiges (7), un second agencement de capteur (15) pour détecter une seconde position de rotation du second dispositif de prise de clé (12), et une mémoire (17) pour stocker des données représentant la seconde position de rotation. L'invention concerne également un procédé.
PCT/SE2016/050159 2015-03-04 2016-03-01 Dispositif et procédé de forage de roche Ceased WO2016140614A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CA2973951A CA2973951C (fr) 2015-03-04 2016-03-01 Dispositif et methode d'automatisation de forage rocheux
AU2016226645A AU2016226645B2 (en) 2015-03-04 2016-03-01 Device and method in respect of rock boring

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE1550253-7 2015-03-04
SE1550253A SE540309C2 (sv) 2015-03-04 2015-03-04 Anordning och förfarande vid bergborrning

Publications (1)

Publication Number Publication Date
WO2016140614A1 true WO2016140614A1 (fr) 2016-09-09

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Application Number Title Priority Date Filing Date
PCT/SE2016/050159 Ceased WO2016140614A1 (fr) 2015-03-04 2016-03-01 Dispositif et procédé de forage de roche

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AU (1) AU2016226645B2 (fr)
CA (1) CA2973951C (fr)
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WO (1) WO2016140614A1 (fr)

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CN117328858A (zh) * 2023-10-30 2024-01-02 江苏和信石油机械有限公司 一种可实时监测的矿山勘探反井钻机
WO2026049658A1 (fr) * 2024-08-26 2026-03-05 Epiroc Rock Drills Aktiebolag Procédé et agencement de manipulation de train de tiges de forage pour manipuler des zones de préhension d'un composant de train de tiges de forage avec une unité de clé

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WO2014133440A2 (fr) * 2013-03-01 2014-09-04 Atlas Copco Rock Drills Ab Dispositif de forage et procédé de maintien d'un train de tiges

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US20140083765A1 (en) * 2012-09-21 2014-03-27 Caterpillar Global Mining Equipment Llc Automatic control system and method for a drilling tool changer apparatus
WO2014133440A2 (fr) * 2013-03-01 2014-09-04 Atlas Copco Rock Drills Ab Dispositif de forage et procédé de maintien d'un train de tiges

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020081535A1 (fr) * 2018-10-15 2020-04-23 National Oilwell Varco, L.P. Ensemble lubrificateur et procédé d'entretien d'éléments tubulaires
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CN117328858A (zh) * 2023-10-30 2024-01-02 江苏和信石油机械有限公司 一种可实时监测的矿山勘探反井钻机
CN117328858B (zh) * 2023-10-30 2024-05-24 江苏和信石油机械有限公司 一种可实时监测的矿山勘探反井钻机
WO2026049658A1 (fr) * 2024-08-26 2026-03-05 Epiroc Rock Drills Aktiebolag Procédé et agencement de manipulation de train de tiges de forage pour manipuler des zones de préhension d'un composant de train de tiges de forage avec une unité de clé

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AU2016226645B2 (en) 2021-04-08
SE540309C2 (sv) 2018-06-05
CA2973951C (fr) 2024-01-23
AU2016226645A1 (en) 2017-09-28
CA2973951A1 (fr) 2016-09-09
SE1550253A1 (sv) 2016-09-05

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