US20080264626A1 - Telescopic anti-buckling guide system - Google Patents
Telescopic anti-buckling guide system Download PDFInfo
- Publication number
- US20080264626A1 US20080264626A1 US11/741,316 US74131607A US2008264626A1 US 20080264626 A1 US20080264626 A1 US 20080264626A1 US 74131607 A US74131607 A US 74131607A US 2008264626 A1 US2008264626 A1 US 2008264626A1
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- Prior art keywords
- guide
- coiled tubing
- telescopic
- recited
- buckling
- Prior art date
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- Abandoned
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- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims 2
- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
- 238000004513 sizing Methods 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 6
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
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
- E21B19/22—Handling reeled pipe or rod units, e.g. flexible drilling pipes
Definitions
- Coiled tubing rigs rely on coiled tubing injectors to inject coiled tubing into a well.
- the bottom of the coiled tubing injector is mounted directly to a stripper assembly through which the coiled tubing moves prior to entering a well stack and the well.
- Attempts have been made to provide greater flexibility in the ability to connect a given coiled tubing injector to a variety of well stacks by using telescoping risers between the stripper assembly and the well stack.
- the use of telescoping risers incurs a high cost and a high level of active maintenance. Additionally, the telescoping risers are required to maintain wellbore pressure.
- the present invention provides a system and method for improving the ability to inject coiled tubing at a variety of wells.
- the system and method utilize a telescopic, anti-buckling guide through which coiled tubing is moved before entering the stripper assembly and ultimately entering the well.
- the telescopic, anti-buckling guide is designed to support the coiled tubing to prevent buckling under operating loads.
- the telescopic, anti-buckling guide facilitates connection to a variety of well control stacks of different heights without requiring vertical movement of the coiled tubing injector and without the need for pressure containment members in the guide.
- FIG. 1 is a schematic front view of a telescopic, anti-buckling guide system, according to an embodiment of the present invention
- FIG. 2 is a side view of the telescopic, anti-buckling guide, according to an embodiment of the present invention
- FIG. 3 is an orthogonal view of a lower guide member of the telescopic, anti-buckling guide illustrated in FIG. 2 , according to an embodiment of the present invention
- FIG. 4 is an orthogonal view of an upper guide member of the telescopic, anti-buckling guide illustrated in FIG. 2 , according to an embodiment of the present invention.
- FIG. 5 is an exploded view of the telescopic, anti-buckling guide system, according to an embodiment of the present invention.
- the present invention relates to a system and methodology for facilitating the injection of coiled tubing into a well.
- a telescopic, anti-buckling guide enables deployment of a coiled tubing injector head onto a well control stack without requiring vertical movement of the injector head.
- the telescopic character of the guide also enables adjustment of the distance between the coiled tubing injector and the well control stack which allows the injector head to be used with well control stacks of different heights without requiring vertical movement of the injector head.
- the guide also supports the coiled tubing and prevents buckling of the coiled tubing between the coiled tubing injector and a stripper assembly positioned at the top of a well control stack.
- the telescopic, anti-buckling guide provides a conduit for directing the coiled tubing from the injector head without requiring pressure seals. All pressure containing equipment can be located within the well control stack which reduces the cost and simplifies the structure of the telescopic, anti-buckling guide. For example, the cost of manufacturing the guide is reduced, and there are no maintenance requirements that would otherwise be associated with pressure seals. By avoiding the need to contain pressure, the telescopic, anti-buckling guide also avoids the need for locks that would otherwise be necessary to prevent unwanted expansion of the guide when exposed to internal well pressure.
- guide system 10 comprises a telescopic, anti-buckling guide 14 connected between a coiled tubing injector 16 and a well stack, such as well control stack 18 .
- telescopic anti-buckling guide 14 is directly connected to a stripper assembly 20 positioned generally at the top of well control stack 18 .
- Well control stack 18 is positioned on a surface 22 above a well 24 having a wellbore 26 .
- Well control stack 18 comprises pressure control equipment 28 to control the internal well pressure within wellbore 26 and to prevent unwanted passage of well fluids through well control stack 18 .
- Pressure control equipment 28 may comprise one or more members that can form the desired pressure seals able to hold back the internal well pressure.
- blowout preventers or other pressure seals can be used.
- all pressure control and all pressure control equipment is located below telescopic, anti-buckling guide 14 in, for example, well control stack 18 . Accordingly, telescopic, anti-buckling guide 14 can be manufactured without pressure seals.
- Coiled tubing injector 16 is designed to deliver coiled tubing 30 (shown in dashed lines) into well 24 .
- Pressure control equipment 28 can be used to form a seal with the coiled tubing 30 to prevent passage of internal well pressure.
- telescopic, anti-buckling guide 14 is sized to support coiled tubing 30 and to prevent buckling of the coiled tubing between the coiled tubing injector 16 and the well control stack 18 , e.g. between coiled tubing injector 16 and stripper assembly 20 .
- Guide 14 supports coiled tubing 30 against buckling when exposed to operating loads.
- the telescopic capability enables guide 14 to be compressed or extended as necessary to enable the connection of stripper assembly 20 to a variety of well control stacks 18 of different heights without requiring vertical movement of coiled tubing injector 16 .
- the stripper assembly 20 can simply be uncoupled from well control stack 18 . Once uncoupled, the stripper assembly 20 is lifted upwardly to compress telescopic, anti-buckling guide 14 so as to clear well control stack 18 without requiring vertical movement of coiled tubing injector 16 .
- the coiled tubing injector 16 , guide 14 and a stripper assembly 20 can then be moved to the next desired location.
- guide 14 comprises an upper guide 32 and a lower guide 34 that are telescopically engaged.
- upper guide 32 and lower guide 34 are interlocking, sliding cylindrical tubes that slide over one another.
- lower guide 34 may be sized to slidably receive upper guide 32 therein.
- upper guide 32 can be sized to slidably receive lower guide 34 within its interior; or upper guide 32 and lower guide 34 may be provided with other interlocking, telescopic configurations.
- lower guide 34 may comprise a body portion 36 that is tubular in shape and has a hollow interior 38 sized to slidably receive upper guide 32 .
- lower guide 34 may further comprise a mount 40 that is configured for connection with stripper assembly 20 .
- Mount 40 may be in the form of a mounting flange 42 that is attached to stripper assembly 20 by a suitable fastener mechanism, such as a threaded engagement, a plurality of threaded fasteners, one or more weldments, or a combination of mechanisms.
- Lower guide 34 further comprises an expanded housing 44 that may be located generally between mount 40 and body portion 36 .
- Expanded portion 44 comprises a window 46 positioned to provide access to a portion of stripper assembly 20 when stripper assembly 20 is engaged with telescopic, anti-buckling guide 14 .
- window 46 can be used to provide access to stripper assembly retaining pins 48 (see FIG. 2 ).
- lower guide 34 may comprise other features, such as a side connector 50 that can be used to facilitate movement and positioning of lower guide 34 and/or telescopic, anti-buckling guide 14 .
- upper guide 32 may comprise a body portion 52 , as further illustrated in FIG. 4 .
- body portion 52 is generally tubular and includes a hollow interior 54 .
- Body portion 52 is sized so that its outside diameter fits within the inside diameter defined by hollow interior 38 of lower guide body portion 36 .
- hollow interior 54 is sized to support a coiled tubing 30 against buckling when coiled tubing 30 is moved through telescopic, anti-buckling guide 14 .
- Upper guide 32 may further comprise a connector 56 that is configured for connection with coiled tubing injector 16 .
- Connector 56 may comprise a flange 58 designed for connection to coiled tubing injector 16 by a suitable fastener mechanism, such as a threaded fastener end, a plurality of threaded fasteners, one or more weldments, or a combination of mechanisms.
- a suitable fastener mechanism such as a threaded fastener end, a plurality of threaded fasteners, one or more weldments, or a combination of mechanisms.
- body portion 52 of upper guide 32 is slidably engaged with body portion 36 of lower guide 34 to form the main body of telescopic, anti-buckling guide 14 .
- a retention ring or other mechanism 60 can be used to, for example, prevent inadvertent separation of upper guide 32 from lower guide 34 once combined.
- guides, e.g. inserts, 62 can be used to selectively size the hollow interior of guide 14 according to the size of coiled tubing 30 that is to be delivered through telescopic, anti-buckling guide 14 and into well 24 .
- a connection end 64 of stripper assembly 20 is inserted into the interior of the expanded portion 44 and exposed via window 46 . In many operations, stripper assembly 20 is retained in engagement with telescopic, anti-buckling guide 14 during movement from one well stack to another.
- the size and configuration of telescopic anti-buckling guide 14 may vary.
- the telescopic characteristics can be achieved with a variety of upper and lower guides that are coupled together for selective expansion and contraction.
- the internal diameters of cylindrical style guides can be adjusted to accommodate different coiled tubing sizes, and a variety of inserts or other mechanisms can be used to provide the desired guidance of coiled tubing into well control stack 18 and well 24 .
- the telescopic, anti-buckling guide 14 can be designed with ends configured for engagement with a variety of coiled tubing injectors and stripper assemblies.
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
A technique improves the ability to inject coiled tubing at a variety of wells. A telescopic, anti-buckling guide is designed to support the coiled tubing to prevent buckling under operating loads. The telescopic, anti-buckling guide also facilitates connection to a variety of well control stacks of different heights without requiring vertical movement of the coiled tubing injector and without the need for pressure containment members in the guide.
Description
- Coiled tubing rigs rely on coiled tubing injectors to inject coiled tubing into a well. Generally, the bottom of the coiled tubing injector is mounted directly to a stripper assembly through which the coiled tubing moves prior to entering a well stack and the well. Attempts have been made to provide greater flexibility in the ability to connect a given coiled tubing injector to a variety of well stacks by using telescoping risers between the stripper assembly and the well stack. However, the use of telescoping risers incurs a high cost and a high level of active maintenance. Additionally, the telescoping risers are required to maintain wellbore pressure.
- In general, the present invention provides a system and method for improving the ability to inject coiled tubing at a variety of wells. The system and method utilize a telescopic, anti-buckling guide through which coiled tubing is moved before entering the stripper assembly and ultimately entering the well. The telescopic, anti-buckling guide is designed to support the coiled tubing to prevent buckling under operating loads. Additionally, the telescopic, anti-buckling guide facilitates connection to a variety of well control stacks of different heights without requiring vertical movement of the coiled tubing injector and without the need for pressure containment members in the guide.
- Certain embodiments of the invention will hereafter be described with reference to the accompanying drawings, wherein like reference numerals denote like elements, and:
-
FIG. 1 is a schematic front view of a telescopic, anti-buckling guide system, according to an embodiment of the present invention; -
FIG. 2 is a side view of the telescopic, anti-buckling guide, according to an embodiment of the present invention; -
FIG. 3 is an orthogonal view of a lower guide member of the telescopic, anti-buckling guide illustrated inFIG. 2 , according to an embodiment of the present invention; -
FIG. 4 is an orthogonal view of an upper guide member of the telescopic, anti-buckling guide illustrated inFIG. 2 , according to an embodiment of the present invention; and -
FIG. 5 is an exploded view of the telescopic, anti-buckling guide system, according to an embodiment of the present invention. - In the following description, numerous details are set forth to provide an understanding of the present invention. However, it will be understood by those of ordinary skill in the art that the present invention may be practiced without these details and that numerous variations or modifications from the described embodiments may be possible.
- The present invention relates to a system and methodology for facilitating the injection of coiled tubing into a well. A telescopic, anti-buckling guide enables deployment of a coiled tubing injector head onto a well control stack without requiring vertical movement of the injector head. The telescopic character of the guide also enables adjustment of the distance between the coiled tubing injector and the well control stack which allows the injector head to be used with well control stacks of different heights without requiring vertical movement of the injector head. The guide also supports the coiled tubing and prevents buckling of the coiled tubing between the coiled tubing injector and a stripper assembly positioned at the top of a well control stack.
- Generally, the telescopic, anti-buckling guide provides a conduit for directing the coiled tubing from the injector head without requiring pressure seals. All pressure containing equipment can be located within the well control stack which reduces the cost and simplifies the structure of the telescopic, anti-buckling guide. For example, the cost of manufacturing the guide is reduced, and there are no maintenance requirements that would otherwise be associated with pressure seals. By avoiding the need to contain pressure, the telescopic, anti-buckling guide also avoids the need for locks that would otherwise be necessary to prevent unwanted expansion of the guide when exposed to internal well pressure.
- One embodiment of a
guide system 10 is illustrated inFIG. 1 as positioned at awell site 12. In this example,guide system 10 comprises a telescopic,anti-buckling guide 14 connected between a coiledtubing injector 16 and a well stack, such as wellcontrol stack 18. In the embodiment illustrated, telescopicanti-buckling guide 14 is directly connected to astripper assembly 20 positioned generally at the top ofwell control stack 18. -
Well control stack 18 is positioned on asurface 22 above a well 24 having awellbore 26.Well control stack 18 comprisespressure control equipment 28 to control the internal well pressure withinwellbore 26 and to prevent unwanted passage of well fluids throughwell control stack 18.Pressure control equipment 28 may comprise one or more members that can form the desired pressure seals able to hold back the internal well pressure. For example, blowout preventers or other pressure seals can be used. In the embodiment illustrated, all pressure control and all pressure control equipment is located below telescopic,anti-buckling guide 14 in, for example,well control stack 18. Accordingly, telescopic,anti-buckling guide 14 can be manufactured without pressure seals. - Coiled
tubing injector 16 is designed to deliver coiled tubing 30 (shown in dashed lines) into well 24.Pressure control equipment 28 can be used to form a seal with the coiledtubing 30 to prevent passage of internal well pressure. Furthermore, telescopic,anti-buckling guide 14 is sized to support coiledtubing 30 and to prevent buckling of the coiled tubing between the coiledtubing injector 16 and thewell control stack 18, e.g. between coiledtubing injector 16 andstripper assembly 20.Guide 14 supportscoiled tubing 30 against buckling when exposed to operating loads. - The telescopic capability enables
guide 14 to be compressed or extended as necessary to enable the connection ofstripper assembly 20 to a variety ofwell control stacks 18 of different heights without requiring vertical movement of coiledtubing injector 16. When a coiled tubing injection operation is completed or the coiledtubing injector 16 is to be moved to another well stack, thestripper assembly 20 can simply be uncoupled from wellcontrol stack 18. Once uncoupled, thestripper assembly 20 is lifted upwardly to compress telescopic,anti-buckling guide 14 so as to clearwell control stack 18 without requiring vertical movement of coiledtubing injector 16. The coiledtubing injector 16,guide 14 and astripper assembly 20 can then be moved to the next desired location. - One embodiment of telescopic,
anti-buckling guide 14 is illustrated inFIG. 2 . In this embodiment,guide 14 comprises anupper guide 32 and alower guide 34 that are telescopically engaged. In the example illustrated,upper guide 32 andlower guide 34 are interlocking, sliding cylindrical tubes that slide over one another. For example,lower guide 34 may be sized to slidably receiveupper guide 32 therein. However,upper guide 32 can be sized to slidably receivelower guide 34 within its interior; orupper guide 32 andlower guide 34 may be provided with other interlocking, telescopic configurations. - By way of example,
lower guide 34 may comprise abody portion 36 that is tubular in shape and has ahollow interior 38 sized to slidably receiveupper guide 32. As also illustrated inFIG. 3 ,lower guide 34 may further comprise amount 40 that is configured for connection withstripper assembly 20.Mount 40 may be in the form of amounting flange 42 that is attached tostripper assembly 20 by a suitable fastener mechanism, such as a threaded engagement, a plurality of threaded fasteners, one or more weldments, or a combination of mechanisms.Lower guide 34 further comprises an expandedhousing 44 that may be located generally betweenmount 40 andbody portion 36. Expandedportion 44 comprises awindow 46 positioned to provide access to a portion ofstripper assembly 20 whenstripper assembly 20 is engaged with telescopic,anti-buckling guide 14. For example,window 46 can be used to provide access to stripper assembly retaining pins 48 (seeFIG. 2 ). Additionally,lower guide 34 may comprise other features, such as aside connector 50 that can be used to facilitate movement and positioning oflower guide 34 and/or telescopic,anti-buckling guide 14. - By way of further example,
upper guide 32 may comprise abody portion 52, as further illustrated inFIG. 4 . In this embodiment,body portion 52 is generally tubular and includes ahollow interior 54.Body portion 52 is sized so that its outside diameter fits within the inside diameter defined byhollow interior 38 of lowerguide body portion 36. Furthermore,hollow interior 54 is sized to support acoiled tubing 30 against buckling when coiledtubing 30 is moved through telescopic,anti-buckling guide 14.Upper guide 32 may further comprise aconnector 56 that is configured for connection withcoiled tubing injector 16.Connector 56 may comprise aflange 58 designed for connection to coiledtubing injector 16 by a suitable fastener mechanism, such as a threaded fastener end, a plurality of threaded fasteners, one or more weldments, or a combination of mechanisms. - As illustrated in the expanded view of
FIG. 5 ,body portion 52 ofupper guide 32 is slidably engaged withbody portion 36 oflower guide 34 to form the main body of telescopic,anti-buckling guide 14. A retention ring orother mechanism 60 can be used to, for example, prevent inadvertent separation ofupper guide 32 fromlower guide 34 once combined. Additionally, a variety of guides, e.g. inserts, 62 can be used to selectively size the hollow interior ofguide 14 according to the size of coiledtubing 30 that is to be delivered through telescopic,anti-buckling guide 14 and intowell 24. Aconnection end 64 ofstripper assembly 20 is inserted into the interior of the expandedportion 44 and exposed viawindow 46. In many operations,stripper assembly 20 is retained in engagement with telescopic,anti-buckling guide 14 during movement from one well stack to another. - Depending on a variety of factors, including well stack size and style, environment, coiled tubing injector type, and well operation performed, the size and configuration of telescopic
anti-buckling guide 14 may vary. The telescopic characteristics can be achieved with a variety of upper and lower guides that are coupled together for selective expansion and contraction. The internal diameters of cylindrical style guides can be adjusted to accommodate different coiled tubing sizes, and a variety of inserts or other mechanisms can be used to provide the desired guidance of coiled tubing intowell control stack 18 and well 24. Furthermore, the telescopic,anti-buckling guide 14 can be designed with ends configured for engagement with a variety of coiled tubing injectors and stripper assemblies. - Accordingly, although only a few embodiments of the present invention have been described in detail above, those of ordinary skill in the art will readily appreciate that many modifications are possible without materially departing from the teachings of this invention. Accordingly, such modifications are intended to be included within the scope of this invention as defined in the claims.
Claims (25)
1. A device to prevent buckling of coiled tubing between a coiled tubing injector head and a well control stack, comprising:
a telescopic, anti-buckling guide having:
an upper guide comprising a connector configured for engagement with the coiled tubing injector head, the upper guide also having a hollow interior sized for movement of coiled tubing therethrough; and
a lower guide telescopically engaged with the upper guide and comprising a mount configured for attachment to a stripper assembly, the lower guide also having a hollow interior through which the coiled tubing moves while being supported against buckling.
2. The device as recited in claim 1 , wherein the connector on the upper guide comprises a flange.
3. The device as recited in claim 1 , wherein the mount on the lower guide comprises a mounting flange.
4. The device as recited in claim 1 , wherein the upper guide comprises an upper body portion and the lower guide comprises a lower body portion slidably engaged with the upper body portion, the upper body portion and the lower body portion cooperating to prevent buckling of coiled tubing passing therethrough.
5. The device as recited in claim 4 , wherein the upper body portion is slidably received within the lower body portion.
6. The device as recited in claim 1 , wherein the lower guide comprises an expanded housing having a window to provide access to the stripper assembly when connected.
7. The device as recited in claim 1 , further comprising the stripper assembly coupled to the telescopic, anti-buckling guide.
8. A method, comprising:
coupling a coiled tubing injector and a well control stack with a telescopic, anti-buckling guide; and
running coiled tubing through the telescopic, anti-buckling guide such that the coiled tubing is supported against buckling.
9. The method as recited in claim 8 , further comprising removing the coiled tubing injector from the well without lifting the coiled tubing injector vertically.
10. The method as recited in claim 8 , further comprising forming a pressure seal below the telescopic, anti-buckling guide.
11. The method as recited in claim 8 , further comprising forming the telescopic, anti-buckling guide with a hollow lower guide slidably engaged with a hollow upper guide.
12. The method as recited in claim 8 , further comprising providing a window through a side wall of the telescopic, anti-buckling guide to provide access to a portion of the stripper assembly.
13. A method, comprising:
mounting a telescopic guide above all pressure containment equipment of a well control stack; and
connecting a coiled tubing injector to the telescopic guide at an end of the telescopic guide generally opposite the well control stack.
14. The method as recited in claim 13 , further comprising injecting coiled tubing through the telescopic guide and into a well.
15. The method as recited in claim 14 , further comprising sizing the telescopic guide to support the coiled tubing against buckling under operating loads.
16. The method as recited in claim 13 , further comprising moving the telescopic guide between well control stacks of different heights without moving the coiled tubing injector vertically.
17. The method as recited in claim 13 , wherein mounting comprises coupling the telescopic guide to a stripper assembly.
18. The method as recited in claim 17 , further comprising removing the coiled tubing injector from the well by: disconnecting the stripper assembly from the well control stack; and lifting the stripper assembly to compress the telescopic guide without moving the coiled tubing injector vertically.
19. A system, comprising:
a well control stack positioned above the well and having a pressure containment member;
a stripper assembly coupled to the well control stack;
a telescopic guide coupled to the stripper assembly on an end generally opposite the well control stack, the telescopic guide being without pressure containment capability; and
a coiled tubing injector positioned to inject coiled tubing through the telescopic guide and into the well.
20. The system as recited in claim 19 , wherein the telescopic guide is formed with interlocking, sliding, cylindrical tubes.
21. The system as recited in claim 20 , wherein the interior diameters of the interlocking, sliding, cylindrical tubes are selected to support the coiled tubing and to prevent it from buckling under load.
22. The system as recited in claim 19 , wherein the telescopic guide comprises an upper guide with a flange.
23. The system as recited in claim 22 , wherein the telescopic guide comprises a lower guide configured to slidably receive the upper guide, the lower guide comprising a mounting flange positioned to engage the stripper assembly.
24. The system as recited in claim 23 , wherein the lower guide comprises an expanded housing having a window to provide access to the stripper assembly when connected.
25. The system as recited in claim 23 , wherein the lower guide is tubular and sized to slidably receive the upper guide therein, the upper guide having a hollow interior sized to receive the coiled tubing therethrough.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/741,316 US20080264626A1 (en) | 2007-04-27 | 2007-04-27 | Telescopic anti-buckling guide system |
CA002629208A CA2629208A1 (en) | 2007-04-27 | 2008-04-16 | Telescopic anti-buckling guide system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/741,316 US20080264626A1 (en) | 2007-04-27 | 2007-04-27 | Telescopic anti-buckling guide system |
Publications (1)
Publication Number | Publication Date |
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US20080264626A1 true US20080264626A1 (en) | 2008-10-30 |
Family
ID=39885620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US11/741,316 Abandoned US20080264626A1 (en) | 2007-04-27 | 2007-04-27 | Telescopic anti-buckling guide system |
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US (1) | US20080264626A1 (en) |
CA (1) | CA2629208A1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140076532A1 (en) * | 2012-09-16 | 2014-03-20 | Travis Childers | Extendable conductor stand having multi-stage blowout protection |
US8752637B1 (en) * | 2013-08-16 | 2014-06-17 | Energy System Nevada, Llc | Extendable conductor stand and method of use |
US10995563B2 (en) | 2017-01-18 | 2021-05-04 | Minex Crc Ltd | Rotary drill head for coiled tubing drilling apparatus |
WO2021186119A1 (en) | 2020-03-20 | 2021-09-23 | Sterlab | Anti-buckling device capable of guiding a cylindrical element that is pushed and moved over a given distance in the direction of its axis |
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2007
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2008
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US6502641B1 (en) * | 1999-12-06 | 2003-01-07 | Precision Drilling Corporation | Coiled tubing drilling rig |
US6776239B2 (en) * | 2001-03-12 | 2004-08-17 | Schlumberger Technology Corporation | Tubing conveyed fracturing tool and method |
US7090685B2 (en) * | 2001-06-25 | 2006-08-15 | Ethicon Endo-Surgery, Inc. | Surgical tool having a distal ratchet mechanism |
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US11136837B2 (en) | 2017-01-18 | 2021-10-05 | Minex Crc Ltd | Mobile coiled tubing drilling apparatus |
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CA2629208A1 (en) | 2008-10-27 |
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Owner name: SCHLUMBERGER TECHNOLOGY CORPORATION, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PATTON, BARTLEY;REEL/FRAME:019502/0484 Effective date: 20070430 |
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