AU770288B2 - Connection of tubulars using a top drive - Google Patents

Connection of tubulars using a top drive Download PDF

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Publication number
AU770288B2
AU770288B2 AU50479/99A AU5047999A AU770288B2 AU 770288 B2 AU770288 B2 AU 770288B2 AU 50479/99 A AU50479/99 A AU 50479/99A AU 5047999 A AU5047999 A AU 5047999A AU 770288 B2 AU770288 B2 AU 770288B2
Authority
AU
Australia
Prior art keywords
tubular
top drive
gripping element
casing
support
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
AU50479/99A
Other versions
AU5047999A (en
Inventor
Robert Patrick Appleton
Bernd-Georg Pietras
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.)
Weatherford Technology Holdings LLC
Original Assignee
Weatherford Lamb Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB9818358A external-priority patent/GB2340856A/en
Application filed by Weatherford Lamb Inc filed Critical Weatherford Lamb Inc
Publication of AU5047999A publication Critical patent/AU5047999A/en
Application granted granted Critical
Publication of AU770288B2 publication Critical patent/AU770288B2/en
Assigned to WEATHERFORD TECHNOLOGY HOLDINGS, LLC reassignment WEATHERFORD TECHNOLOGY HOLDINGS, LLC Alteration of Name(s) in Register under S187 Assignors: WEATHERFORD/LAMB INC.
Anticipated expiration legal-status Critical
Expired 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
    • E21B19/02—Rod or cable suspensions
    • E21B19/06—Elevators, i.e. rod- or tube-gripping devices
    • 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/0411—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion specially adapted for anchoring tools or the like to the borehole wall or to well tube
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/0421—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion using multiple hydraulically interconnected pistons
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/022—Top drives
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/126—Packers; Plugs with fluid-pressure-operated elastic cup or skirt
    • 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
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/02—Subsoil filtering
    • E21B43/10—Setting of casings, screens, liners or the like in wells

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Joints Allowing Movement (AREA)
  • Pivots And Pivotal Connections (AREA)

Description

I.
I
"An Apparatus for Facilitating the Connection of Tubulars Using a Top Drive" This invention relates to an apparatus for facilitating the connection of tubulars using a top drive and is more particularly, but not exclusively, intended for facilitating the connection of a section or stand of casing to a string of casing.
In the construction of oil or gas wells it is usually necessary to line the borehole with a string of tubulars known as casing. Because of the length of the casing required, sections or stands of say two sections of casing are progressively added to the string as it is lowered into the well from a drilling platform. In particular, when it is desired to add a section or stand of casing the string is usually restrained from. falling into the well 0 0" 15 by applying the slips of a spider located in the floor of the drilling platform. The new section or stand of casing is then moved from a rack to the well centre above the spider.
The threaded pin of the section or stand of casing to be connected is then located over the threaded box of the casing in the well and the connection is made up by rotation 0 therebetween. An elevator is then connected to the top of the new section or stand and 20 the whole casing string lifted slightly to enable the slips of the spider to be released.
"The whole casing string is then lowered until the top of the section is adjacent the spider whereupon the slips of the spider are re-applied, the elevator disconnected and the process repeated.
It is common practice to use a power tong to torque the connection up to a predetermined torque in order to make the connection. The power tong is located on the platform, either on rails, or hung from a derrick on a chain. However, it has recently been proposed to use a top drive for making such connection. A "top drive" is a top driven rotational system substantially used for drilling purposes, assigned to the drawworks at a higher level than the elevator, as is previously known.
Because of the high costs associated with the construction of oil and gas wells time is critical and it has been observed by the applicants that the time to connect a tubular to a top drive using existing equipment could be reduced.
Accordingly there is provided an apparatus for facilitating the connection of tubulars using a top drive, which apparatus comprises a body connectable to said top drive, said body comprising at least one gripping element radially displaceable by hydraulic or pneumatic fluid directly applied thereto to drivingly engage a tubular to permit a screw connection between said tubular and a further tubular to be tightened to the required torque.
Other features of the invention are set out in Claims 2 to 14.
The present invention also provides an apparatus for facilitating the connection of tubulars using a top drive, said apparatus comprising a body connectable to said top drive, said body comprising at least one gripping element radially displaceable to drivingly engage said tubular and a sealing packer to inhibit, in use, fluid in said tubular from escaping therefrom.
Preferably, said sealing packer can be actuated by hydraulic or pneumatic fluid.
One advantage of at least preferred embodiments of the invention is that the gripping elements transfer the full torque capacity of the top drive to the casing without damaging the pipe surface. Elastomeric jaws greatly reduce the marks made by the dies as compared to simple metal dies. Elastomeric jaws also enable pipes with differing inside diameters to be clamped with only one set ofjaws.
The present invention also provides a top drive having an apparatus in accordance with the present invention attached thereto.
Some preferred embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which: Figure 1 is a cross-sectional side view of a first embodiment of an apparatus S 25 in accordance with the present invention inserted in a section of casing; 008Dm2 ***004405088 5 December 2003 Figure 2 shows the apparatus of Figure 1 connected to a top drive and inserted in a section of casing; and Figure 3 shows a cross-sectional side view in perspective of part of a second embodiment of an apparatus in accordance with the present invention.
Referring to Figure 1 there is shown an apparatus which is generally identified by reference numeral 1.
The apparatus 1 comprises a cylindrical body 2 which has a central passage 3 therethrough. The cylindrical body 2 has circumferentially spaced recesses 4 thereabout in which respective gripping elements 5 are located.
The upper part 6 of the cylindrical body 2 is of a reduced outer diameter. The 15 upper part 6 passes through a rotary transmission 7 and is rotatably supported by two bearings 8, 9 which are arranged in corresponding channels 10, 11 in an annular support 12. A circumferentially raised portion 13 between the two bearings 8, 9 is provided in the upper part 6 to inhibit longitudinal movement of the cylindrical body 2.
20 The rotary transmission 7 is mounted fast on the annular support 12 and is in "sealing tight relation with the upper part 6 which is rotatable relative thereto. The rotary transmission 7 is provided with a feed passage 15 in the annular support 12 and with a feed line 16. The other end of the feed passage 14 is in fluid communication with a radial channel 17. Feed passages 18 are provided in the cylindrical body 2 to link the radial channel 17 with the circumferential recesses 4 behind each gripping element The upper part 6 is provided with internal splines 19 along the upper part of the passage 3. The lower end of a connecting member 20 is provided with corresponding /extemal splines and is located in the upper part of the passage 3. The upper end of the connecting member 20 is provided with a circulating canal 22 and threads 23 for connection to a top drive (Figure 2).
04 s s
C
P- 4
J
The support member 12 is provided with two axles 24, 25 to which compensating cylinders 26, 27 are attached, the corresponding pistons 28, 29 being, in use, connected to the body of the top drive (Figure 2).
Gripping elements 5 are preferably based on the construction described in PCT Publication No. WO 94/05894 which is incorporated herein for all purposes, and sold by the applicants under the trade mark "MICRO-GRIP".
The gripping elements 5 comprise a plurality of longitudinally extending strips (not shown) which are embedded side by side in an elastomeric base member (not shown). Each strip projects out from said elastomeric base member, and each strip has a pipe gripping edge (not shown) facing away from the elastomeric base member, so that channels are formed between adjacent strips to accommodate debris from the :surface of the casing to be gripped. The pipe gripping edge may, for example, comprise teeth, so that the strips resemble saw blades, or may comprise particulate material bonded to the strips. This type of gripping element allows rotational torque to be applied to the tubular and longitudinal forces produced by circulating fluid within the tubular and the weight of the tubular to be taken.
S
The cylindrical body 2 is shown in Figure 1 in a section of casing 20 with gripping elements 5 in a radially extended position, engaging the inner wall 31 of the section Of casing 30 beneath a threaded box 32.
In use, the pistons 28, 29 are connected to the stator 34 of the top drive 33 (Figure The rotor 35 of the top drive 33 is connected to the connecting member The section of casing 30 is positioned over the upper portion of a casing string using, for example, a pipe positioning device. The top drive 33 with the attached apparatus 1 is lowered so that the cylindrical body 2 thereof enters the casing 30. Alternatively, the section or stand of casing may be brought towards the apparatus 1 using the methods and apparatus disclosed in co-pending UK Patent Application No. 9818366.8 entitled "Methods and Apparatus for Facilitating the Connection of Tubulars Using a Top Drive" filed by the applicant for the present application on 24 August 1998. If the support member 12 hits the top of the threaded box 32, the compensating cylinders 26, 27, which contain compressed air, cushion the impact whilst the splines 19, 21 in the upper part 6 of the cylindrical body 2 will allow relative longitudinal movement between the apparatus 1 and the top drive 33 whilst being able to transmit rotation therebetween.
Hydraulic pressure is applied through feed line 16, feed passage 15, feed passage 14, radial channel 17, and feed passage 18 into recess 4 behind gripping elements forcing the gripping elements 5 radially outwardly to engage the inner wall 31 of the casing The top drive 33 may now be used to rotate the rotor 35 which in turn rotates the connecting member 20, the cylindrical body 2 and hence the casing 30. The compensating cylinders 26, 27 will allow a small downward movement as the threaded pin on the bottom of the casing enters the box on the top of the string, and may be controlled remotely. The compensating cylinders 26, 27 may be of the pneumatic compensating type, i.e. their internal pressure may be adjusted to compensate for the weight of the casing 30 so that movement of the tubular may be conducted with minimal force. Pneumatic compensating cylinders also reduce the risk of damage to the 20 threads of the tubulars. This can conveniently be achieved by introducing pneumatic o. :fluid into the cylinders 26, 27 and adjusting the pressure therein. Hydraulic cylinders however, be used or hydraulic cylinders provided with a pneumatic bellows system.
Once the joint is correctly tightened the elevator 37 is swung into position and the elevator slips therein (not shown) are actuated to grip the casing 30 beneath the box 32. The top drive 33 is then raised a small amount using the drawworks to enable the slips in the spider to be released and the top drive and casing string is then lowered.
As the casing is lowered liquid may be introduced into the casing 30 via the connecting canal 22 and the central passage 3. The introduction of such liquid is often desirable to facilitate the lowering of the casing.
Referring to Figure 3 there is shown an apparatus in accordance with a second embodiment of the present invention which is generally identified by the reference numeral 101.
The apparatus 101 is generally similar to that of Figure 1, in that it comprises a cylindrical body 102 which has a central passage 103 therethrough. The cylindrical body 102 has recesses 104 thereabout in which gripping elements 105 are located. The gripping elements 105 are provided with recesses 106.
The cylindrical body 102 is also provided with a cylindrical sealing packer 107 S: arranged below the gripping elements 105. The cylindrical sealing packer 107 is provided with a'recess 108. The cylindrical sealing packer 107 which is made from an elastomeric material is fast with the cylindrical body 102.
The cylindrical body 102 is provided with a feed passage 109 which is at the upper end connected to a hydraulic fluid supply, and at the other, to the recesses 106 and 108 in the gripping elements 105 and the cylindrical sealing packer 107 respectively.
In use, the apparatus 101 is connected to a top drive, such as that shown in Figure 2, and is inserted into the top of a section or stand of casing 110. Hydraulic fluid pressure is applied through feed passage 109 into recesses 106 and 108 which moves the gripping elements 105 into engagement with the inner wall 111 and the cylindrical sealing packer 107 into contact with the inner wall 111. The gripping elements 105 engage with the inner wall 111 of the casing 110 so that rotational force can be transmitted from the apparatus 101 to the casing 110. The sealing packer 107 substantially prevents any fluids such as mud from escaping between the apparatus 101 and the casing 110. This is particularly advantageous where it is desired to circulate fluid to facilitate running the casing. In particular, if the casing string becomes lodged on an obstruction, liquid can be pumped down the casing string under high pressure to remove the obstruction. The sealing packer 107 facilitates this operation by inhibiting liquid under high pressure escaping through the top of the casing It is envisaged that the apparatus as described above could be used in conjunction with any of the apparatus and used with any of the methods as described in the co-pending International Applications based on GB Application Nos. 9818360.1, 9818363.5 and 9818366.8 entitled "An Apparatus for Facilitating the Connection of Tubulars Using a Top Drive", "Method and Apparatus for Facilitating the Connection of Tubulars using a Top Drive" and "Method and Apparatus for Facilitating the Connection of Tubulars using a Top Drive" respectively.
C

Claims (18)

1. An apparatus for facilitating the connection of tubulars using a top drive, which apparatus comprises a body connectable to said top drive, said body comprising at least one gripping element radially displaceable by hydraulic or pneumatic fluid directly applied thereto to drivingly engage a tubular to permit a screw connection between said tubular and a further tubular to be tightened to the required torque.
2. An apparatus as claimed in claim 1, wherein said at least one gripping element has an elastomeric gripping surface incorporating projecting metal inserts or saw blades capable of transmitting said torque.
3. An apparatus as claimed in claim 1 or 2, wherein said at least one gripping element is movable radially outwardly from said body to engage the inside wall of said tubular.
4. An apparatus as claimed in claim 1, 2 or 3, wherein said body is connectable to a rotor of said top drive in order to rotate said apparatus.
5. An apparatus as claimed in claim 1, 2, 3 or 4, further comprising a sealing packer for engagement with said tubular.
6. An apparatus as claimed in claim 5, wherein said sealing packer can be :activated by hydraulic or pneumatic fluid. S
7. An apparatus as claimed in any preceding claim, wherein said body is provided with a passage therethrough to allow excess fluid in said tubular to escape therefrom.
8. An apparatus as claimed in any preceding claim, further comprising a 0004405088 5 December 2003 support for supporting the weight of said tubular during driving engagement of the tubular by said at least one gripping element.
9. An apparatus as claimed in claim 8, wherein said support is connectable to a stator of said top drive.
An apparatus as claimed in claim 8 or 9, wherein said support is carried by compensating pistons connectable to said top drive.
11. An apparatus as claimed in claim 10, wherein said compensating pistons are pneumatically operable and are adjustable to compensate for different weights of tubular.
12. An apparatus as claimed in any preceding claim, wherein an upper part of said body comprises a splined recess into which a splined rotor or splined connecting member may be located.
13. An apparatus as claimed in claim 8, 9, 10 or 11, wherein said support is arranged circumjacent an upper part of said body with a bearing arranged therebetween to allow said body to rotate with respect to said support.
14. An apparatus as claimed in any preceding claim, further comprising a rotary transmission to allow hydraulic or pneumatic fluid to pass through said body. 25
15. An apparatus as claimed in any preceding claim, wherein said at least one gripping element is located in at least one recess disposed about an outer surface of the body. .i
16. An apparatus as claimed in any preceding claim, wherein said at least one gripping element is located in at least one recess disposed about an outer surface of o .004405088 5 December 2003 the body.
17. A top drive having an apparatus as claimed in any preceding claim attached thereto.
18. An apparatus having an apparatus for facilitating the connection of tubulars using a top drive substantially as hereinbefore described with reference to the accompanying drawings. Dated: 5 December, 2003 FREEHILLS CARTER SMITH BEADLE Patent Attorneys for the Applicant WEATHERFORD/LAMB, INC 004405088 5 December 2003
AU50479/99A 1998-07-22 1999-07-22 Connection of tubulars using a top drive Expired AU770288B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
GBGB9815809.0A GB9815809D0 (en) 1998-07-22 1998-07-22 Casing running tool
GB9815809 1998-07-22
GB9818358 1998-08-24
GB9818358A GB2340856A (en) 1998-08-24 1998-08-24 An apparatus for facilitating the connection of tubulars using a top drive
PCT/GB1999/002203 WO2000005483A1 (en) 1998-07-22 1999-07-22 Connection of tubulars using a top drive

Related Child Applications (1)

Application Number Title Priority Date Filing Date
AU57728/01A Division AU5772801A (en) 1998-07-22 2001-07-30 An apparatus for running tubulars into a borehole

Publications (2)

Publication Number Publication Date
AU5047999A AU5047999A (en) 2000-02-14
AU770288B2 true AU770288B2 (en) 2004-02-19

Family

ID=26314076

Family Applications (1)

Application Number Title Priority Date Filing Date
AU50479/99A Expired AU770288B2 (en) 1998-07-22 1999-07-22 Connection of tubulars using a top drive

Country Status (8)

Country Link
US (4) US20010042625A1 (en)
EP (2) EP1152119A3 (en)
AU (1) AU770288B2 (en)
CA (1) CA2304664C (en)
DE (1) DE69921283D1 (en)
GB (2) GB9815809D0 (en)
NO (2) NO317223B1 (en)
WO (1) WO2000005483A1 (en)

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US7137454B2 (en) 2006-11-21
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US20070074876A1 (en) 2007-04-05
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US20050269105A1 (en) 2005-12-08
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US7665531B2 (en) 2010-02-23
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US20050051343A1 (en) 2005-03-10
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CA2304664C (en) 2005-07-12
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CA2304664A1 (en) 2000-02-03
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US20010042625A1 (en) 2001-11-22
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EP1152119A3 (en) 2002-11-20
NO20013348D0 (en) 2001-07-06

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