US20200063508A1 - Pipe handling unit - Google Patents

Pipe handling unit Download PDF

Info

Publication number
US20200063508A1
US20200063508A1 US16/487,642 US201816487642A US2020063508A1 US 20200063508 A1 US20200063508 A1 US 20200063508A1 US 201816487642 A US201816487642 A US 201816487642A US 2020063508 A1 US2020063508 A1 US 2020063508A1
Authority
US
United States
Prior art keywords
pipe
rotor
gripper
drive
clamping
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.)
Abandoned
Application number
US16/487,642
Inventor
Odd B. Skjærseth
Bjørn Eilertsen
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.)
West Drilling Products AS
Original Assignee
West Drilling Products AS
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
Priority to NO20170271 priority Critical
Priority to NO20170271A priority patent/NO343124B1/en
Application filed by West Drilling Products AS filed Critical West Drilling Products AS
Priority to PCT/NO2018/050049 priority patent/WO2018156030A1/en
Assigned to WEST DRILLING PRODUCTS AS reassignment WEST DRILLING PRODUCTS AS ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: EILERTSEN, Bjørn, SKJAERSETH, ODD B.
Publication of US20200063508A1 publication Critical patent/US20200063508A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/16Connecting or disconnecting pipe couplings or joints
    • E21B19/161Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe
    • E21B19/164Connecting or disconnecting pipe couplings or joints using a wrench or a spinner adapted to engage a circular section of pipe motor actuated
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/20Combined feeding from rack and connecting, e.g. automatically
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/14Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/14Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
    • E21B19/15Racking of rods in horizontal position; Handling between horizontal and vertical position
    • E21B19/155Handling between horizontal and vertical position

Abstract

A pipe-gripper is adapted for connection to a manipulator for the handling of a pipe or a pipe stand. The pipe-gripper has an elongated housing; a rotor supported in the longitudinal housing, provided with a periphery and a longitudinal groove, the longitudinal groove having an inside face and a groove mouth having a width, and the rotor being rotatable around its center axis; a toothed rim arranged on the periphery of the rotor and being interrupted by the longitudinal groove; a clamp assembly comprising at least one clamping device arranged within the rotor; a rotor drive being positioned within the elongated housing; and a rotor transmission in engagement with the rotor drive at toothed-rim engagement points at a distance between the toothed-rim engagement points larger than the width of a groove mouth.

Description

    FIELD
  • The invention relates to a pipe-gripper arranged to be connected to a manipulator for handling a pipe or a pipe stand.
  • BACKGROUND
  • In the assembling and disassembling of a pipe string, for example a drill string that is used for drilling in hydrocarbon-bearing underground structures, many apparatuses and operations connected with moving, rotating and mounting the pipe string, pipe stands and single pipes are used. Conventionally, operations including screwing together pipes, making up and breaking out pipe joints have been carried out by means of cooperating backup tongs and power tongs, possibly by the cooperation between a drilling machine or another drilling unit and a backup tongs, while the pipes have been moved between the pipe-string centre and a pipe rack by means of one or more manipulators firmly holding the pipes and orienting them. Traditional pipe-grippers are unable to provide the required torque to make up/break out pipe joints.
  • SUMMARY
  • The invention has for its object to remedy or to reduce at least one of the drawbacks of the prior art or at least provide a useful alternative to the prior art.
  • The object is achieved through the features that are specified in the description below and in the claims that follow.
  • The invention provides a pipe-gripper which, in addition to being able to hold a pipe or a pipe stand in a firm grip to orient and move the pipe or pipe stand, is also arranged to rotate the pipe or the pipe stand around the pipe centre axis to screw the pipe or the pipe stand together with a pipe string by supplying makeup torque while extending the pipe string, or to screw a pipe together with another pipe during the assembling of a pipe stand, and to reverse the process when disassembling the pipe string or pipe stand using breakout torque on a pipe joint. The pipe gripper may be connected to a manipulator arm using a manipulator arm joint.
  • The pipe-gripper comprises an elongated housing wherein a rotor is arranged. The rotor may extend out through end openings in the elongated housing. A longitudinal groove arranged to accommodate a portion of a pipe or a pipe stand (herein after referred to as “pipe”) extends through the entire length of the rotor. The rotor is supported in the housing. The elongated groove has a centre axis preferably coinciding with the centre axis of the rotor. The elongated groove is provided with side faces extending out from bottom portion. Preferably, the longitudinal groove is U-shaped and is provided with a circularly rounded bottom portion and parallel side faces extending tangentially from the rounded bottom portion. In a gripping position, in which the pipe-gripper may be moved into engagement with the pipe or pipe stand, a lateral opening in the housing forms a complementary, radial extension of a mouth of the longitudinal groove of the rotor.
  • The rotor is provided with an external toothed rim interrupted by the longitudinal groove. A rotor drive, which is arranged in a portion of the housing, engages with the toothed rim via a rotor transmission assembly, the points of engagement of the driving wheels with the toothed rim being spaced apart by a distance which is larger than the mouth width of the rotor, in order thereby to ensure that the rotor drive will be in engagement with the toothed rim at all times. Preferably, the toothed rim is arranged in an end portion of the rotor.
  • The rotor is provided with at least one set of clamping devices which, when being displaced radially, are arranged to engage with a portion of the pipe or the pipe stand when this is placed in the longitudinal groove of the rotor. Each set of clamping devices may include at least two diametrically opposite dies arranged in the transition between the bottom of the groove and the side faces of the groove. The dies are movable along respective guides, preferably in the form of ramps in the rotor, to, by axial displacement, achieve the radial displacement. The rotor is preferably provided with two sets of clamping devices arranged remotely from each other. It is an advantage if the sets of clamping devices have the same direction of motion and that the direction of motion, in engaging with the pipe, is in the downward direction seen in the vertical position of the pipe-gripper, so that gravity helps to lock the pipe in the rotor by pulling the pipe-clamping dies downwards and inwards. The at least one set of clamping devices are connected via transmission means to an actuator arranged in the housing. It is an advantage if each set of clamping devices is connected to a separate actuator, for each set of clamping devices to provide the desired engagement with the pipe independently of variations in pipe diameter, wear on the pipe-clamping dies, deformation of the guide tracks, etc. The actuator is preferably formed as a second drive motor which is connected, via a clamp transmission arranged in the longitudinal housing, to threaded rods via rows of gear wheels arranged on an end face of the rotor, the threaded rods extending in an axial direction into engagement with the dies, typically via threaded holes in axially displaceable die carriers. A remote-controlled drive coupling forms a transmission interface between the housing and the rotor for uncoupling the drive motor so that the rotor may be rotated freely relative to said drive motor. The drive coupling may be provided with a coupler motor may be adapted to move the drive coupling.
  • In an alternative embodiment of the invention, the dies are connected to brace rods arranged in the axial direction of the rotor and connected to a mounting which is rotatable around the centre axis of the rotor and is axially displaceable by means of a linear actuator, for example a so-called linear motor.
  • If several sets of clamping devices are connected to one and the same actuator, it is an advantage if a resilient element is arranged in the connection between each set of clamping devices and the clamp transmission so that a sufficient pressure is achieved from each set of clamping devices against the pipe to be held fixed. The resilient element may be formed as a coupling element for said threaded rods or brace rods of the pipe grippers, the coupling elements being displaceable in the axial direction of the rotor against tensioned springs.
  • The pipe-gripper is provided with a mounting for rotatable connection to a manipulator with several degrees of freedom for manoeuvring the pipe-gripper within a work area. Preferably, the mounting is arranged in the middle portion of the housing.
  • The invention is defined by the independent claim. The dependent claims define advantageous embodiments of the invention.
  • The invention relates, more specifically, to a pipe-gripper adapted for connection to a manipulator for handling a pipe or a pipe stand, characterized by
      • a longitudinal housing
      • a rotor which supported in the longitudinal housingis provided with a U-shaped groove extending axially through it being supported in a housing and rotatable around the centre axis of the rotor,
      • a toothed rim being arranged on the periphery of the rotor and being broken through by the U-shaped groove and being arranged to be in engagement with a rotor drive via first and second driving wheels,
      • a distance between a first toothed-ring engagement, formed between the toothed rim and the first driving wheel, and a second toothed-ring engagement, formed between the toothed rim and the second driving wheel, being larger than the width of a groove mouth, and
      • the rotor being provided with at least one clamping device provided with at least two diametrically opposite dies which are radially displaceable into the U-shaped groove and are connected to a die actuator.
  • The rotor drive may include a first drive motor which is connected to the first and second driving wheels via first and second transmission means, respectively.
  • The transmission means may be taken from a group consisting of gear wheels, roller chains and toothed belts.
  • The toothed rim may be arranged at an end portion of the rotor.
  • The dies of each clamping device may be displaceable along ramps arranged in the rotor, each ramp having the direction of dip towards the same end portion of the rotor.
  • Said ramps may dip radially outwards in the axial direction of the rotor away from an, in the vertical position of application of the pipe-gripper, lower end portion of the rotor.
  • The die actuator may be formed as a second drive motor which is arranged in the housing and is connected via several gear wheels to threaded rods which are each in engagement with a respective die, and a remote-controlled drive coupling forms an interface between the housing and the rotor.
  • Several clamping devices may be connected to the same die actuator. Alternatively, several clamping devices may be connected to the same die actuator via a resilient coupling element connected to thedies. Alternatively, each clamping device may be connected to a separate die actuator.
  • BRIEF DESCRIPTION OF THE DRAWINGS
  • In what follows, an example of a preferred embodiment is described, which is visualized in the accompanying drawings, in which:
  • FIG. 1 shows, in perspective, a pipe-gripper according to a first embodiment of the invention connected to a manipulator arm;
  • FIG. 2 shows an axial section through the pipe-gripper according to II-II of FIG. 1;
  • FIG. 3 shows an axial section through the pipe-gripper according to III-III of FIG. 1;
  • FIG. 3a shows a section of FIG. 3 on a larger scale;
  • FIG. 3b shows a section of FIG. 3, in which an alternative embodiment of a connection between a die actuator and a die is shown;
  • FIG. 4 shows a cross section IV-IV according to FIGS. 2 and 3 on a larger scale;
  • FIG. 5 shows a cross section V-V according to FIGS. 2 and 3;
  • FIG. 5a shows a cross section corresponding to that of FIG. 5, but where a rotor has been rotated by 180°;
  • FIG. 6 shows a longitudinal section VI-VI according to FIG. 3;
  • FIG. 7 shows a cross section VII-VII according to FIGS. 2 and 3;
  • FIG. 8 shows in perspective a pipe-gripper according to a second embodiment of the invention;
  • FIG. 9 shows an isolation perspective view of an embodiment of the pipe-gripper's clamping device;
  • FIG. 10 shows an axial section view of the pipe gripper according to FIG. 8;
  • FIG. 11a shows a ground view of an embodiment of the pipe gripper's clamping device; and;
  • FIG. 11b shows an axial section view XI-XI according to FIG. 11a through the pipe gripper's clamping device.
  • DETAILED DESCRIPTION OF THE DRAWINGS
  • Reference is first made to FIG. 1, in which a pipe-gripper 1 according to the invention is connected to a manipulator 2 (shown here just as an end portion of a manipulator arm) arranged to move a pipe or a pipe stand 3. The pipe-gripper 1 includes a longitudinal housing 11 which, in a middle portion 11 a, is provided with a suitable manipulator coupling joint 115. The manipulator arm joint 115 is arranged to move the pipe gripper 1 about a rotation axis 111, allowing the pipe gripper 1 to hold the pipe 3 in positions about the rotation axis 111. The pipe manipulator 2 to which the pipe gripper 1 is attached allows movement of pipe gripper 1 from horizontal to vertical position in a 3-D space. A rotor 12 is supported in first and second rotor bearings 113 a, 113 b projecting from the housing 11. Each rotor bearing 113 a, 113 b is formed as separate supports 114 a defining, at their outer ends, a mouth 114 b and providing both axial and radial fixing of the rotor 12.
  • The rotor 12, which has a circular periphery 12 c, is provided with a groove 121 extending axially through it, here shown as a U-formed groove, wherefrom, and tangentially to, a semi-circular bottom portion 1211 with a centre axis coinciding with the centre axis of the rotor 12, two parallel side faces 1212 extend to the circular periphery of the rotor, where a groove mouth 1213 is formed.
  • The end portions 12 a, 12 b of the rotor 12 are each provided with an external toothed rim 122 broken through by the groove 121.
  • The pipe gripper 1 is provided with a clamp system 123, wherein near the end portions 12 a, 12 b of the rotor 12 according to the embodiment shown in FIG. 1, first and second clamping devices 123 a, 123 b, respectively, are arranged, which are arranged to hold the pipe 3 fixed in the rotor 12. In other embodiments, only one clamp device 123 a may be used. The clamping device 123 a, possibly the clamping devices 123 a, 123 b might even be positioned anywhere along the length of the rotor 12. In diametrically opposite cut-outs 1214 in the rotor 12, guides 1232 are formed in the form of ramps dipping radially outwards in the direction of a second end portion 12 b of the rotor 12, an end portion facing upwards in the normal, operatively vertical position of the pipe-gripper 1. Dies 1231 are arranged to be displaceable in the guides 1232. Each die 1231 is connected to a die carrier 1233 via two articulated arms 1233 a. In the die carrier 1233, a threaded hole 1234 is arranged for receiving a threaded rod 144 (see below).
  • Reference is now made to FIGS. 2 and 5 in particular. Two rotor drives 13 are arranged in the end portions 11 b, 11 c of the elongated housing 11. Via a drive shaft 131 a, here provided with a toothed wheel 131 b, is engaging with a rotor transmission 139, here shown with several first and second transmission means 132 a, 133 a, shown here as gear wheels, and first and second driving wheels 132, 133, respectively, shown here as toothed wheels, a first drive motor 131 is in engagement with the toothed rims 122 of the rotor 12. The engagements of the first and second driving wheels 132, 133 with the toothed rim 122, form toothed-rim engagements points 1321, 1331 spaced apart by a distance B (see FIG. 5). The distance B is larger than the mouth width A of the rotor 12. A person skilled in the art may choose other forms of rotor transmission 139, for example roller chains or toothed belts and corresponding designs of the drive shaft 131 a and driving wheels 132, 133.
  • Reference is now made to FIGS. 1, 4, 6 and 7. Arranged in the end portions of the pipe-gripper 1, there are first and second die actuators 14, 14 a which, via a clamp transmission 149 in the form of a drive coupling 142, several gear wheels 143 and threaded rods 144, are each in engagement with a respective clamping device 123 a, 123 b in the rotor 12. A second drive motor 141 is arranged in the housing 11 and is provided with a second drive wheel 145. Via the drive coupling 142 and the gear wheels 143 arranged on the end face of the rotor 12, said drive wheel 145 is in engagement with two threaded rods 144 extending in the axial direction in the rotor 12 into engagement with the threaded holes 1234 of the die carriers 1233 of the respective clamping device 123 a, 123 b.
  • Even though the exemplary embodiment is shown with a rotor 12 with two toothed rims 122 and two rotor drives 13, the invention may also be practised with a rotor 12 having just one toothed rim 122 and one rotor drive 13.
  • The rotor 12 may alternatively be provided with just one clamping device 123 a.
  • The rotor 12 may alternatively be provided with several clamping devices 123 a, 123 b which are connected to one die actuator 14. It is then an advantage if a coupling 1238 between the die actuator 14 and the die carriers 1233 is resilient, for example as shown in FIG. 3b , in which the threaded hole 1234 is arranged in a coupling element 1236 which is placed in a recess 1235 in the die carrier 1233 between two sets of springs 1237, shown as disc springs here. Variations in pipe diameter, die dimensions etc. may thereby be equalized so that all the clamping devices 123 a, 123 b apply roughly the same clamping force to the pipe 3.
  • The pipe-gripper 1 is connected to the manipulator 2 and wires, not shown, for the supply of energy to the drive motors 131 of the rotor drives 13 and the drive motors 141 and drive couplings 142 of the die actuators 14, 14 a. When the rotor 12 has been rotated in such a way that the groove mouth 1213 coincides with the mouths 114 b of the rotor bearings 113 a, 113 b, the pipe-gripper 1 is moved onto a portion of the pipe 3 which is to be moved. The drive couplings 142 of the die actuators 14, 14 a are activated and the dies 1231 of the clamping devices 123 a, 123 b are moved into engagement with the pipe 3 by the threaded rods 144 being rotated with the respective second drive motors 141. The drive couplings 142 are deactivated so that said second drive motors 141 are uncoupled from the rotor 12.
  • The manipulator 2 positions the pipe 3 relative to a pipe string not shown, to which the pipe 3 is to be joined. The rotor 12 is put into rotation by means of the first drive motors 131 for joining the pipe 3 and the pipe string not shown. The pipe-gripper 1 is so dimensioned that making up the pipe joint to the prescribed torque is carried out with the pipe-gripper 1. Correspondingly, the pipe-gripper 1 according to the invention can also be used when a pipe joint is to be broken out and a pipe 3 removed from a pipe string.
  • Reference is now made to FIG. 8, in which pipe-gripper 1′ similar to the pipe gripper 1 of FIG. 1 is shown, however, the pipe gripper 1′ is provided with just on clamp device 123′, here shown with the dies close to the middle of the rotor.
  • In FIG. 9 is shown a further embodiment of the clamp assembly 123′, in which the clamp device 124′ comprises a clamp housing 330. A clamp drive assembly 320 includes clamp drive 340 wherein a chain or a belt 350 is engaging with drive sprockets 360. The drive sprockets 360 are connected to drive gears 370 positioned in a plane above or below the chain drive sprockets 360. The drive gears 370 engage with clamp drive gears 380. Jack screws 390 are axially extending from respective clamp drive gears 380 and rotates with the clamp drive gears 380. A threaded potion 394 engages with internal threads on a yoke 400. Pistons 420 extend from the yoke 400 in the axial direction of the jack screws 390 and into respective clamp cylinders 430. When then clamp drive 320 is engaged, the pistons 420 is displaced relative to the respective clamp cylinder 430.
  • Now referring to FIG. 11b , hydraulic discharge ports 432 are depicted. As the pistons 420 are displaced in the clamp cylinders 430, hydraulic fluid is flowing through the hydraulic discharge ports 432. The combined area of bottom portions 434 of the pistons 420 is defined as area C.
  • Now referring to FIG. 10. Each clamp 124′ includes a die 1231 equivalent to what is described above. The die 1231 may be mechanically coupled to a clamp hydraulic cylinder 310. The clamp hydraulic cylinder 310 is in fluid connection with the clamp cylinder 430 forming a closed-loop hydraulic system. As the pistons 420 are displaced into the clamp cylinders 430, hydraulic fluid is forced from the clamp cylinders 430 through the hydraulic discharge ports 432 into the clamp hydraulic cylinders 310, thereby displacing the dies 1231 towards the centre line of the rotor 12. The dies 1231 may be biased such that, when the pistons 420 are retracted from the clamp cylinders 430, the dies 1231 retracts to their initial positions when hydraulic fluid flows back into the clamp cylinders 430. A die face 312 have an area D. The area D may be greater than area C, such that the force exerted by the die 1231 against the pipe 3 may be greater than that exerted by the pistons 420. The ratio of area D to area C may be between 10:1 and 30:1, more specifically between 15:1 to 25:1.
  • When the clamping force is sufficient to retain the pipe 3, rotations of the jack screw 390 may cease and the clamp drive 340 is allowed to freewheel, enabling rotation of the rotor 12 without rotating the jack screw 390.
  • It should be noted that all the above-mentioned embodiments illustrate the invention, but do not limit it, and persons skilled in the art may construct many alternative embodiments without departing from the scope of the attached claims. In the claims, reference numbers in brackets are not to be regarded as restrictive.
  • The use of the verb “to comprise” and its different forms does not exclude the presence of elements or steps that are not mentioned in the claims. The indefinite article “a” or “an” before an element does not exclude the presence of several such elements.
  • The fact that some features are indicated in mutually different dependent claims does not indicate that a combination of these features cannot be used with advantage.

Claims (12)

1. A pipe-gripper adapted for connection to a manipulator for the handling of a pipe or a pipe stand, the pipe-gripper comprising:
an elongated housing;
a rotor supported in the longitudinal housing, and provided with a periphery and provided with a longitudinal groove, the longitudinal groove having an inside face and a groove mouth, the groove mouth having a width, and the rotor being rotatable around its center axis;
a toothed rim is arranged on the periphery of the rotor and is interrupted by the longitudinal groove;
a clamp assembly comprising at least one clamping device arranged within the rotor;
a rotor drive being positioned within the elongated housing; and
a rotor transmission in engagement with the rotor drive at toothed-rim engagement points at a distance between the toothed-rim engagement points larger than the width of a groove mouth.
2. The pipe-gripper according to claim 1, wherein the longitudinal groove has one of a U-shaped, C-shaped, and squared-off cross-section.
3. The pipe-gripper according to claim 1, wherein the rotor comprises a top clamp assembly and a bottom clamp assembly.
4. The pipe-gripper according to claim 1, wherein the rotor drive comprises a first drive motor which is connected to the first and second driving wheels via first and second transmission means, respectively.
5. The pipe-gripper according to claim 1, wherein the rotor transmission is selected from a group consisting of gear wheels, roller chains and toothed belts.
6. The pipe-gripper according to claim 1, wherein the at least one clamping device provided with at least two diametrically opposite dies which are radially displaceable into the longitudinal groove and are connected to a die actuator.
7. The pipe-gripper according to claim 6, wherein the dies of each clamping device are displaceable along ramps arranged in the rotor, each ramp having a direction of dip towards the same end portion of the rotor.
8. The pipe-gripper according to claim 7, wherein said ramp dips radially outwards in the axial direction of the rotor away from a, in the vertical position of application of the pipe-gripper, lower end portion of the rotor.
9. The pipe-gripper according to claim 6, wherein the die actuator is formed as a second drive motor which is arranged in the housing and is connected via a clamp transmission to threaded rods which are each in engagement with a respective die, and a remote-controlled drive coupling forms an interface between the housing and the rotor.
10. The pipe-gripper according to claim 1, wherein several clamping devices are connected to the same die actuator.
11. The pipe-gripper according to claim 1, wherein several clamping devices are connected to the same die actuator via a resilient coupling element connected to the dies.
12. The pipe-gripper according to claim 1, wherein each clamping device is connected to a separate die actuator.
US16/487,642 2017-02-24 2018-02-23 Pipe handling unit Abandoned US20200063508A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NO20170271 2017-02-24
NO20170271A NO343124B1 (en) 2017-02-24 2017-02-24 The pipe handler assembly
PCT/NO2018/050049 WO2018156030A1 (en) 2017-02-24 2018-02-23 Pipe handling unit

Publications (1)

Publication Number Publication Date
US20200063508A1 true US20200063508A1 (en) 2020-02-27

Family

ID=63246139

Family Applications (2)

Application Number Title Priority Date Filing Date
US15/903,281 Active 2038-10-06 US10590718B2 (en) 2017-02-24 2018-02-23 Pipe handling unit
US16/487,642 Abandoned US20200063508A1 (en) 2017-02-24 2018-02-23 Pipe handling unit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
US15/903,281 Active 2038-10-06 US10590718B2 (en) 2017-02-24 2018-02-23 Pipe handling unit

Country Status (4)

Country Link
US (2) US10590718B2 (en)
GB (1) GB2573234A (en)
NO (1) NO343124B1 (en)
WO (1) WO2018156030A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190078400A1 (en) * 2017-09-11 2019-03-14 Nabors Drilling Technologies Usa, Inc. Systems, devices, and methods to detect pipe with a gripperhead
US10837238B2 (en) 2018-07-19 2020-11-17 Nabors Drilling Technologies Usa, Inc. Side saddle slingshot continuous motion rig
CN111140185B (en) * 2020-01-07 2021-06-01 江苏明宇石油机械有限公司 Working method of automatic pipe rod conveying type oilfield drilling device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7967540B2 (en) * 2004-11-29 2011-06-28 Weatherford Canada Partnership Vertical offline stand building and manipulating system
WO2008028302A1 (en) * 2006-09-08 2008-03-13 Canrig Drilling Technology Ltd. Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular strings
US8006590B2 (en) * 2008-05-12 2011-08-30 Longyear Tm, Inc. Open-faced rod spinner
CA2971308C (en) * 2012-11-30 2018-01-16 American Augers, Inc. Tool for use on exit side of bore and method of use thereof
NO20130805A1 (en) * 2013-06-10 2014-12-11 Mhwirth As Lift arm assembly and method of replacing a holder in said lift arm assembly
BR112018077056A2 (en) * 2016-06-28 2019-04-24 Frank's International, Llc pipe wrench, and method for joining or separating threaded connections between tubular members with a pipe wrench.

Also Published As

Publication number Publication date
GB201910492D0 (en) 2019-09-04
US20180245410A1 (en) 2018-08-30
NO20170271A1 (en) 2018-08-27
WO2018156030A1 (en) 2018-08-30
GB2573234A (en) 2019-10-30
NO343124B1 (en) 2018-11-12
US10590718B2 (en) 2020-03-17

Similar Documents

Publication Publication Date Title
US20200063508A1 (en) Pipe handling unit
US9528332B2 (en) Power tong
US20190309586A1 (en) Gripper with spinning means
KR101588720B1 (en) Simultaneous clamp and torque drive
CA2503692A1 (en) Top drive well casing system and method
US20050061112A1 (en) Adapter frame for a power frame
EP2744969B1 (en) Device for activation of gripping jaws in continuously rotating torque tongs for use under pulling and opening of threaded connections
US20070044592A1 (en) Apparatus for handling tubulars and method
US20200208475A1 (en) Vise arrangement for an underground drilling machine
CA2298845C (en) Drill rod loader
US10533383B2 (en) Apparatus for rotating and clamping a tubular
US20210293100A1 (en) Power tong
EP3519721B1 (en) Assembling flanged couplings
AU2013338349B2 (en) Top drive powered differential speed rotation system and method
US20110219916A1 (en) Power Tong Device
US20170314349A1 (en) Top drive powered differential speed rotation system and method
PL185301B1 (en) Method of establishing and releasing connections between pipe sections in a drilling rig
MXPA06005881A (en) A power tong

Legal Events

Date Code Title Description
AS Assignment

Owner name: WEST DRILLING PRODUCTS AS, NORWAY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SKJAERSETH, ODD B.;EILERTSEN, BJOERN;REEL/FRAME:050143/0297

Effective date: 20190821

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION