CA2325875A1 - Apparatus and method for handling of tubulars - Google Patents
Apparatus and method for handling of tubulars Download PDFInfo
- Publication number
- CA2325875A1 CA2325875A1 CA002325875A CA2325875A CA2325875A1 CA 2325875 A1 CA2325875 A1 CA 2325875A1 CA 002325875 A CA002325875 A CA 002325875A CA 2325875 A CA2325875 A CA 2325875A CA 2325875 A1 CA2325875 A1 CA 2325875A1
- Authority
- CA
- Canada
- Prior art keywords
- tubular
- clamp
- guide
- strut
- pipe handling
- 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
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP 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
- E21B19/14—Racks, ramps, troughs or bins, for holding the lengths of rod singly or connected; Handling between storage place and borehole
- E21B19/15—Racking of rods in horizontal position; Handling between horizontal and vertical position
- E21B19/155—Handling between horizontal and vertical position
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49826—Assembling or joining
- Y10T29/49895—Associating parts by use of aligning means [e.g., use of a drift pin or a "fixture"]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49998—Work holding
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53909—Means comprising hand manipulatable tool
- Y10T29/53913—Aligner or center
- Y10T29/53917—Tube with tube
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53961—Means to assemble or disassemble with work-holder for assembly
Abstract
An apparatus for attachment to a pipe handling arm, which apparatus comprises a clamp (3, 4) for gripping a tubular (70), characterised in that said apparatus further comprises means (10) for, in use, aligning said tubular (70) with another tubular (71) prior to connection thereof.
Description
. 4 M&C Folio No P50694PC 1 Apparatus and Method for Handling Tnbnlars This invention relates to an apparatus for attachment to a pipe handling arm and to a method of handling tubular.
Pipe handling apparatus generally comprises a pipe handling arm and a clamp.
The pipe handling arm is fixed at one end to a derrick or to a rig floor of a drilling rig.
The other end of the pipe handling arm is free to move in at least one plane, and usually two or three planes. The clamp is attached to the free end of the pipe handling arm. In use, the free end of the pipe handling arm is swung over to a pipe rack. The clamp clamps on to a tubular and then picks the tubular up and manoeuvres it into a position generally over an upper section of a tubular string at the well centre.
Typically the tubulars are not in perfect alignment due to tolerance in the pipe handling arm. In order to ensure correct alignment a stabbing guide is then strapped around the threaded box of the upper section of the tubular string. The threaded pin of the tubular is then lowered into the threaded box of the upper section of the tubular string, and is guided into alignment therewith by the stabbing guide.
Although it only takes a relatively short time to mount and remove a stabbing guide it would be desirable to reduce this time because of the high costs associated with the running of a drilling rig.
US Patent No. 4,625,796 discloses a system for aligning tubulars in which the tubular to be connected is transferred to two jaws mounted on a derrick via parallel arms.
US Patent No. 4,650,235 discloses an attachment for a pipe handling arm where a tubular is allowed to move through centering jaws.
The present invention provides an apparatus for attachment to a pipe handling arm, comprising a clamp for gripping a tubular and a guide for aligning said tubular with another tubular prior to connection thereof characterised in that said clamp and said guide are movable relative to each other in a direction longitudinal of the tubular, the arrangement being such that said tubular can be brought closer to said another tubular in a direction longitudinal of the tubular.
The tubulars could be casing, liner or other type of pipe and especially large diameter tubulars, for example 36" casing.
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M&C Folio No P50694PC
Preferably, said clamp and said guidc are arranged on a strut.
Advantageously, at least one of said clamp and said guide is moveable along said stmt by a hydraulic piston and cylinder.
Alternatively, at least one of said clamp and said guide is movable along said strut by a pneumatic piston and cylinder.
Preferably, said strut is divided into a first portion and a second portion and said second portion is offset from said first portion.
Advantageously, said apparatus further comprises a second clamp which is in a fixed relation to said clamp.
Preferably, said clamps) comprise jaws movable betwcen an open and a closed position.
Advantageously, said apparatus further comprises a hydraulic piston to move said jaws between their open and closed positions.
Preferably, said jaws comprise cylindrical rollers, to facilitate rotation of said tubular whilst inhibiting axial movement thereof.
Advantageously, said apparatus comprises a lug for attachment to a pipe handling arm.
Preferably, said guide comprises a clamp.
The present invention also provides a pipe handling arm provided with an apparatus in accordance with the present invention.
The present invention also provides a method of handling a tubular to be connected to another tubular, -i.c.a_"~,_ f'~~~IIIFD SN
WO 99/41486 PCT/GB99i00432 which method comprises the steps of:-gripping said tubular with an apparatus in accordance with the present invention, and using said apparatus to align said tubular with said another tubular.
For a better understanding of the present invention, reference will now be made, by way of example, to the accompanying drawings in which:
Figure lA shows a top portion of an apparatus according to the present invention is use: and Figure 18 shows a bottom portion of the apparatus according to the present invention in use.
Referring to the drawings there is shown an apparatus which is generally identified by reference numeral 1.
The apparatus 1 comprises a substantially vertical box-section upper strut 2 which has longitudinally spaced upper and lower clamping units 3 and 4 slidably mounted thereon. The upper and lower clamping units 3 and 4 are linked by a bar 5. The upper clamping unit 3 is attached to the piston of a hydraulic piston and cylinder 7.
Activation of the hydraulic piston and cylinder 7 moves the upper and lower clamping units 3 and 4 along the upper strut 2.
A substantially vertical box-section lower strut 8 is attached to the upper strut 2 by a plate 9. The lower strut 8 is set back fr~n the upper strut 2. A guide in the form of a clamping unit 10 is arranged near the lower end of the lower strut 8.
The apparatus 1 is connectable to a standard pipe handling arm (not shown) in place of the known clamping device described hereinbefore via lug 11.
Each clamping unit 3, 4, 10 comprises two jaws 12, 13; 14, 15; 16, 17; each jaw 12 to 17 being pivotable about a respective pin 18, 19, 20, 21, 22, 23 by a hydraulic piston 24, 25, 26.
Each jaw 12 to 17 comprises an upper plate 27 to 32 and a lower plate 33 to 38 which are separated by bolts 39 to 50 onto which cylindrical rollers 51 to 62 are mounted so that the longitudinal axis of the cylindrical rollers 51 to 62 is substantially perpendicular to the upper and lower plates 27 to 38.
Each j aw 12 to 17 is attached to a lug 63 , 64 , 65 .
Lugs 63 and 64 are welded to respective sleeves 66 and 67 which are slidably arranged on the upper strut 2. Lug 65 is welded to an intermediary section 69 which in turn is welded to sleeve 68. The sleeve 68 is fixed to the lower strut 8 by grub scrsws (not shown). The sleeve 68 may however be moved along lower strut 8. The jaws 12 to 17 of the clamping units 3, 4, 10 are substantially in vertical alignment with each other, and preferably to within a tolerance of a few millimetres.
In use, the apparatus 1 is connected to a pipe handling arm via lug 11. The pipe handling arm is generally movable in three planes. Such pipe handling arms are currently supplied by Varco BJTM such as the PLS-3TM Automatic pick-up/Lay-downs system and Martins HydraulicsTM such as the EagleTM and Eagle LightTM
transfer system.
A tubular 70 to bs connected to the upper and of a tubular string 71 is picked up by the jaws 12, 13, 14, 15 of the clamping units 3, 4 from a rack (not shown). The jaws 12, 13, 14, 15 of the clamping units 3, 4 move about pins 18, 19, 20, 21 by activation of the hydraulic pistons 24, 25. The rollers 51 to 58 engage with the tubular 70. The upper end of the tubular string 71 is held in a spider (not shown) in the rig floor (not shown). The tubular 70 is then brought into approximate alignment, for example within a few centimetres of the upper asction of the tubular string 71 by manipulation of the pipe handling arm to which apparatus 1 is connected.
The jaws 16, 17 of the clamping unit 10 move about pins 22, 23 by activation of the hydraulic pistons 26 and rollers 55 to 58 move circumjacent and engage the upper section of the tubular string 71. As the rollers 55 to 58 move into engagement with the tubular string 71 the tubular 70 moves into alignment with the tubular string 71, such movement being permitted by the "slack" in the pipe handling arm. The tubular 70 is now in aligrunent with the upper section of the tubular string 71 to preferably within a few millimetres. The tubular 70 can now be lowered by activating the hydraulic piston 7. A
threaded pin 72 of the tubular 70 locates in the threaded box 73 of the upper section of the tubular string 71.
The lower strut 8 is set back from the tubular 70 and the upper section of the tubular string 71, to allow a tong and a back-up tong (not shown) to be used to screw the threaded pin 72 into the threaded box 73 to make the connection. Alternatively, a top drive (not shown) on the derrick may be used to screw the threaded pin 72 into the threaded box 73. The rollers 51 to 58 allow rotation of the tubular 70 whilst inhibiting a longitudinal movement thereof.
It is envisaged that various modifications may be made to the preferred embodiment including replacing hydraulic piston 7 with a pneumatic piston, which, with the appropriate control apparatus, will be able to compensate for the weight of the tubular 70 and minimise potential damage to the threads as the tubular 70 is lowered into the threaded box 73.
It should be noted that the clamp 10 could be replaced by a guide which could be slidable on the upper section of the tubular string 71 when closed thereabout.
However, it is recommended that a clamp 10 should be used.
Pipe handling apparatus generally comprises a pipe handling arm and a clamp.
The pipe handling arm is fixed at one end to a derrick or to a rig floor of a drilling rig.
The other end of the pipe handling arm is free to move in at least one plane, and usually two or three planes. The clamp is attached to the free end of the pipe handling arm. In use, the free end of the pipe handling arm is swung over to a pipe rack. The clamp clamps on to a tubular and then picks the tubular up and manoeuvres it into a position generally over an upper section of a tubular string at the well centre.
Typically the tubulars are not in perfect alignment due to tolerance in the pipe handling arm. In order to ensure correct alignment a stabbing guide is then strapped around the threaded box of the upper section of the tubular string. The threaded pin of the tubular is then lowered into the threaded box of the upper section of the tubular string, and is guided into alignment therewith by the stabbing guide.
Although it only takes a relatively short time to mount and remove a stabbing guide it would be desirable to reduce this time because of the high costs associated with the running of a drilling rig.
US Patent No. 4,625,796 discloses a system for aligning tubulars in which the tubular to be connected is transferred to two jaws mounted on a derrick via parallel arms.
US Patent No. 4,650,235 discloses an attachment for a pipe handling arm where a tubular is allowed to move through centering jaws.
The present invention provides an apparatus for attachment to a pipe handling arm, comprising a clamp for gripping a tubular and a guide for aligning said tubular with another tubular prior to connection thereof characterised in that said clamp and said guide are movable relative to each other in a direction longitudinal of the tubular, the arrangement being such that said tubular can be brought closer to said another tubular in a direction longitudinal of the tubular.
The tubulars could be casing, liner or other type of pipe and especially large diameter tubulars, for example 36" casing.
~1 D 1J /
i i~
. . .~ .~ ..
, ~. .~ ~, " . ~ .
. . ~ . . .
i . ~ ~ . . ~
. , . . . ~ ..
, .~. .~.~. ~~..
.
M&C Folio No P50694PC
Preferably, said clamp and said guidc are arranged on a strut.
Advantageously, at least one of said clamp and said guide is moveable along said stmt by a hydraulic piston and cylinder.
Alternatively, at least one of said clamp and said guide is movable along said strut by a pneumatic piston and cylinder.
Preferably, said strut is divided into a first portion and a second portion and said second portion is offset from said first portion.
Advantageously, said apparatus further comprises a second clamp which is in a fixed relation to said clamp.
Preferably, said clamps) comprise jaws movable betwcen an open and a closed position.
Advantageously, said apparatus further comprises a hydraulic piston to move said jaws between their open and closed positions.
Preferably, said jaws comprise cylindrical rollers, to facilitate rotation of said tubular whilst inhibiting axial movement thereof.
Advantageously, said apparatus comprises a lug for attachment to a pipe handling arm.
Preferably, said guide comprises a clamp.
The present invention also provides a pipe handling arm provided with an apparatus in accordance with the present invention.
The present invention also provides a method of handling a tubular to be connected to another tubular, -i.c.a_"~,_ f'~~~IIIFD SN
WO 99/41486 PCT/GB99i00432 which method comprises the steps of:-gripping said tubular with an apparatus in accordance with the present invention, and using said apparatus to align said tubular with said another tubular.
For a better understanding of the present invention, reference will now be made, by way of example, to the accompanying drawings in which:
Figure lA shows a top portion of an apparatus according to the present invention is use: and Figure 18 shows a bottom portion of the apparatus according to the present invention in use.
Referring to the drawings there is shown an apparatus which is generally identified by reference numeral 1.
The apparatus 1 comprises a substantially vertical box-section upper strut 2 which has longitudinally spaced upper and lower clamping units 3 and 4 slidably mounted thereon. The upper and lower clamping units 3 and 4 are linked by a bar 5. The upper clamping unit 3 is attached to the piston of a hydraulic piston and cylinder 7.
Activation of the hydraulic piston and cylinder 7 moves the upper and lower clamping units 3 and 4 along the upper strut 2.
A substantially vertical box-section lower strut 8 is attached to the upper strut 2 by a plate 9. The lower strut 8 is set back fr~n the upper strut 2. A guide in the form of a clamping unit 10 is arranged near the lower end of the lower strut 8.
The apparatus 1 is connectable to a standard pipe handling arm (not shown) in place of the known clamping device described hereinbefore via lug 11.
Each clamping unit 3, 4, 10 comprises two jaws 12, 13; 14, 15; 16, 17; each jaw 12 to 17 being pivotable about a respective pin 18, 19, 20, 21, 22, 23 by a hydraulic piston 24, 25, 26.
Each jaw 12 to 17 comprises an upper plate 27 to 32 and a lower plate 33 to 38 which are separated by bolts 39 to 50 onto which cylindrical rollers 51 to 62 are mounted so that the longitudinal axis of the cylindrical rollers 51 to 62 is substantially perpendicular to the upper and lower plates 27 to 38.
Each j aw 12 to 17 is attached to a lug 63 , 64 , 65 .
Lugs 63 and 64 are welded to respective sleeves 66 and 67 which are slidably arranged on the upper strut 2. Lug 65 is welded to an intermediary section 69 which in turn is welded to sleeve 68. The sleeve 68 is fixed to the lower strut 8 by grub scrsws (not shown). The sleeve 68 may however be moved along lower strut 8. The jaws 12 to 17 of the clamping units 3, 4, 10 are substantially in vertical alignment with each other, and preferably to within a tolerance of a few millimetres.
In use, the apparatus 1 is connected to a pipe handling arm via lug 11. The pipe handling arm is generally movable in three planes. Such pipe handling arms are currently supplied by Varco BJTM such as the PLS-3TM Automatic pick-up/Lay-downs system and Martins HydraulicsTM such as the EagleTM and Eagle LightTM
transfer system.
A tubular 70 to bs connected to the upper and of a tubular string 71 is picked up by the jaws 12, 13, 14, 15 of the clamping units 3, 4 from a rack (not shown). The jaws 12, 13, 14, 15 of the clamping units 3, 4 move about pins 18, 19, 20, 21 by activation of the hydraulic pistons 24, 25. The rollers 51 to 58 engage with the tubular 70. The upper end of the tubular string 71 is held in a spider (not shown) in the rig floor (not shown). The tubular 70 is then brought into approximate alignment, for example within a few centimetres of the upper asction of the tubular string 71 by manipulation of the pipe handling arm to which apparatus 1 is connected.
The jaws 16, 17 of the clamping unit 10 move about pins 22, 23 by activation of the hydraulic pistons 26 and rollers 55 to 58 move circumjacent and engage the upper section of the tubular string 71. As the rollers 55 to 58 move into engagement with the tubular string 71 the tubular 70 moves into alignment with the tubular string 71, such movement being permitted by the "slack" in the pipe handling arm. The tubular 70 is now in aligrunent with the upper section of the tubular string 71 to preferably within a few millimetres. The tubular 70 can now be lowered by activating the hydraulic piston 7. A
threaded pin 72 of the tubular 70 locates in the threaded box 73 of the upper section of the tubular string 71.
The lower strut 8 is set back from the tubular 70 and the upper section of the tubular string 71, to allow a tong and a back-up tong (not shown) to be used to screw the threaded pin 72 into the threaded box 73 to make the connection. Alternatively, a top drive (not shown) on the derrick may be used to screw the threaded pin 72 into the threaded box 73. The rollers 51 to 58 allow rotation of the tubular 70 whilst inhibiting a longitudinal movement thereof.
It is envisaged that various modifications may be made to the preferred embodiment including replacing hydraulic piston 7 with a pneumatic piston, which, with the appropriate control apparatus, will be able to compensate for the weight of the tubular 70 and minimise potential damage to the threads as the tubular 70 is lowered into the threaded box 73.
It should be noted that the clamp 10 could be replaced by a guide which could be slidable on the upper section of the tubular string 71 when closed thereabout.
However, it is recommended that a clamp 10 should be used.
Claims (13)
1. An apparatus for attachment to a pipe handling arm, comprising a clamp (3,4) for gripping a tubular (70) and a guide (10) for aligning said tubular (70) with another tubular (71) prior to connection thereof, characterised in that said clamp and said guide are movable relative to each other in a direction longitudinal of the tubular, the arrangement being such that said tubular (70) can be brought closer to said another tubular (71) in a direction longitudinal of the tubular.
2. An apparatus as claimed in claim 1, wherein said clamp (3) and said guide (10) are arranged on a strut (2,8).
3. An apparatus as claimed in claim 2, wherein at least one of said clamp (3) and said guide (10) is movable along said strut (2,8) by a hydraulic piston and cylinder.
4. An apparatus as claimed in claim 2, wherein at least one of said clamp (3) and said guide (10) is movable along said strut (2,8) by a pneumatic piston and cylinder.
5. An apparatus as claimed in claim 2, 3 or 4, wherein said strut is divided into a first portion (2) and a second portion (8); and said second portion is offset from said first portion.
6. An apparatus as claimed in any of claims 2 to 5, further comprising a second clamp (4) which is in a fixed relation to said clamp (3).
7. An apparatus as claimed in any preceding claim, wherein the or each clamp comprises jaws (12 to 17) movable between an open and a closed position.
8. An apparatus as claimed in claim 7, further comprising a hydraulic piston (24 to 26) for moving said jaws (12 to 17) between their open and closed positions.
9. An apparatus as claimed in claim 7 or 8, wherein said jaws (12 to 17) comprise cylindrical rollers (51 to 62), to facilitate rotation of said tubular (70) whilst inhibiting axial movement thereof.
10. An apparatus as claimed in any preceding claim, further comprising a lug (11) for attachment to a pipe handling arm.
11. An apparatus as claimed in any preceding claim, wherein said guide (10) comprises a clamp.
12. A pipe handling arm provided with an apparatus as claimed in any preceding claim.
13. A method of handling a tubular to be connected to another tubular, comprising the steps of gripping the tubular with an apparatus as claimed in any preceding claim, and using said apparatus to align said tubule with said another tubular.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9803115A GB2334270A (en) | 1998-02-14 | 1998-02-14 | Apparatus for attachment to pipe handling arm |
| GB9803115.6 | 1998-02-14 | ||
| PCT/GB1999/000432 WO1999041486A1 (en) | 1998-02-14 | 1999-02-11 | Apparatus and method for handling of tubulars |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2325875A1 true CA2325875A1 (en) | 1999-08-19 |
Family
ID=10826966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002325875A Abandoned CA2325875A1 (en) | 1998-02-14 | 1999-02-11 | Apparatus and method for handling of tubulars |
Country Status (7)
| Country | Link |
|---|---|
| US (2) | US6550128B1 (en) |
| EP (1) | EP1055049B1 (en) |
| AU (1) | AU2532899A (en) |
| CA (1) | CA2325875A1 (en) |
| DE (1) | DE69910543T2 (en) |
| GB (1) | GB2334270A (en) |
| WO (1) | WO1999041486A1 (en) |
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| WO2007106999A1 (en) * | 2006-03-20 | 2007-09-27 | Tesco Corporation | Portable tubular stabbing assembly |
| US7958787B2 (en) | 2006-08-24 | 2011-06-14 | Canrig Drilling Technology Ltd. | Oilfield tubular torque wrench |
| US8042432B2 (en) | 2006-08-24 | 2011-10-25 | Canrig Drilling Technology Ltd. | Oilfield tubular torque wrench |
| US8074537B2 (en) | 2006-09-08 | 2011-12-13 | Canrig Drilling Technology Ltd. | Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular strings |
| US9097070B2 (en) | 2006-08-25 | 2015-08-04 | Canrig Drilling Technology Ltd. | Apparatus for automated oilfield torque wrench set-up to make-up and break-out tubular strings |
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| GB2334270A (en) * | 1998-02-14 | 1999-08-18 | Weatherford Lamb | Apparatus for attachment to pipe handling arm |
| GB2340858A (en) * | 1998-08-24 | 2000-03-01 | Weatherford Lamb | Methods and apparatus for facilitating the connection of tubulars using a top drive |
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| US7269886B2 (en) * | 2003-12-12 | 2007-09-18 | 3 Day Blinds, Inc. | Ladder station support assembly |
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| US7104316B1 (en) | 2004-03-24 | 2006-09-12 | John Paul Hobgood | Tong positioning and alignment device |
| US7188686B2 (en) * | 2004-06-07 | 2007-03-13 | Varco I/P, Inc. | Top drive systems |
| US7967541B2 (en) * | 2004-11-29 | 2011-06-28 | Weatherford Canada Partnership | Apparatus for handling and racking pipes |
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| US7347285B2 (en) * | 2004-12-29 | 2008-03-25 | Atlas Copco Drilling Solutions Inc. | Drilling machine having a movable rod handling device and a method for moving the rod handling device |
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| US7806176B2 (en) * | 2007-04-17 | 2010-10-05 | Moody V Braxton I | Well tubular running tool |
| US20080304938A1 (en) * | 2007-06-08 | 2008-12-11 | Brian Michael Katterhenry | Strongback Traveling Clamp |
| US8469648B2 (en) | 2007-10-24 | 2013-06-25 | T&T Engineering Services | Apparatus and method for pre-loading of a main rotating structural member |
| US7918636B1 (en) | 2007-10-24 | 2011-04-05 | T&T Engineering Services | Pipe handling apparatus and method |
| US7726929B1 (en) | 2007-10-24 | 2010-06-01 | T&T Engineering Services | Pipe handling boom pretensioning apparatus |
| US8128332B2 (en) | 2007-10-24 | 2012-03-06 | T & T Engineering Services, Inc. | Header structure for a pipe handling apparatus |
| US7946795B2 (en) | 2007-10-24 | 2011-05-24 | T & T Engineering Services, Inc. | Telescoping jack for a gripper assembly |
| US8419335B1 (en) | 2007-10-24 | 2013-04-16 | T&T Engineering Services, Inc. | Pipe handling apparatus with stab frame stiffening |
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- 1999-02-11 WO PCT/GB1999/000432 patent/WO1999041486A1/en active IP Right Grant
- 1999-02-11 CA CA002325875A patent/CA2325875A1/en not_active Abandoned
- 1999-02-11 AU AU25328/99A patent/AU2532899A/en not_active Abandoned
- 1999-02-11 US US09/600,764 patent/US6550128B1/en not_active Expired - Fee Related
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2003
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2007106999A1 (en) * | 2006-03-20 | 2007-09-27 | Tesco Corporation | Portable tubular stabbing assembly |
| US7958787B2 (en) | 2006-08-24 | 2011-06-14 | Canrig Drilling Technology Ltd. | Oilfield tubular torque wrench |
| US8042432B2 (en) | 2006-08-24 | 2011-10-25 | Canrig Drilling Technology Ltd. | Oilfield tubular torque wrench |
| US9097070B2 (en) | 2006-08-25 | 2015-08-04 | Canrig Drilling Technology Ltd. | Apparatus for automated oilfield torque wrench set-up to make-up and break-out tubular strings |
| US8074537B2 (en) | 2006-09-08 | 2011-12-13 | Canrig Drilling Technology Ltd. | Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular strings |
| US8490520B2 (en) | 2006-09-08 | 2013-07-23 | Canrig Drilling Technology Ltd. | Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular strings |
| US9404324B2 (en) | 2006-09-08 | 2016-08-02 | Canrig Drilling Technology Ltd. | Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular strings |
| US10329857B2 (en) | 2006-09-08 | 2019-06-25 | Nabors Drilling Technologies Usa, Inc. | Oilfield tubular spin-in and spin-out detection for making-up and breaking-out tubular strings |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999041486A1 (en) | 1999-08-19 |
| EP1055049A1 (en) | 2000-11-29 |
| GB9803115D0 (en) | 1998-04-08 |
| GB2334270A (en) | 1999-08-18 |
| EP1055049B1 (en) | 2003-08-20 |
| US20030167623A1 (en) | 2003-09-11 |
| US7036202B2 (en) | 2006-05-02 |
| DE69910543T2 (en) | 2004-06-24 |
| AU2532899A (en) | 1999-08-30 |
| DE69910543D1 (en) | 2003-09-25 |
| US6550128B1 (en) | 2003-04-22 |
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| EEER | Examination request | ||
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