WO1993016833A1 - Broaching tool for tubing - Google Patents

Broaching tool for tubing Download PDF

Info

Publication number
WO1993016833A1
WO1993016833A1 PCT/GB1993/000415 GB9300415W WO9316833A1 WO 1993016833 A1 WO1993016833 A1 WO 1993016833A1 GB 9300415 W GB9300415 W GB 9300415W WO 9316833 A1 WO9316833 A1 WO 9316833A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
mandrel
tubing
broaching
tool portion
Prior art date
Application number
PCT/GB1993/000415
Other languages
French (fr)
Inventor
James Fraser Hardie
Gunnar Jostal Tor
Original Assignee
Peco Machine Shop & Inspection Services Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peco Machine Shop & Inspection Services Ltd. filed Critical Peco Machine Shop & Inspection Services Ltd.
Priority to GB9322069A priority Critical patent/GB2271304A/en
Publication of WO1993016833A1 publication Critical patent/WO1993016833A1/en

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
    • E21B37/00—Methods or apparatus for cleaning boreholes or wells
    • E21B37/02—Scrapers specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D79/00—Methods, machines, or devices not covered elsewhere, for working metal by removal of material
    • B23D79/02—Machines or devices for scraping
    • B23D79/021—Machines or devices for scraping for removing welding, brazing or soldering burrs, e.g. flash, on pipes or rods
    • B23D79/023—Machines or devices for scraping for removing welding, brazing or soldering burrs, e.g. flash, on pipes or rods internally
    • 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
    • E21B23/14—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for displacing a cable or a cable-operated tool, e.g. for logging or perforating operations in deviated wells
    • 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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/10—Reconditioning of well casings, e.g. straightening

Definitions

  • This invention relates to a broaching tool for use in cleaning, scraping and / or shaping the inner surface of a length of tubing, such as the tubing used in the extraction of liquid and gaseous hydrocarbons from underground reservoirs.
  • this usually comprises an elongate body or mandrel securable to a wireline and having working faces i.e. cutting / scraping faces projecting radially outwardly of the mandrel to engage with the internal surface of the tubing and carry out a required working operation, such as to cut / shape burrs in the tubing caused by perforation, rust, bent tubing and the like.
  • a set of spools is provided of increasing size, which can be fitted consecutively on the mandrel, with the smallest spool being fitted first for a first passage along the tubing, and then replaced by a larger O.D. spool which carries out a further pass along the tubing, and which in turn is replaced by a final largest O.D. spool for final action, so that the tool presents a successively larger O.D. cutting / working profile to carry out required cleaning / scraping and / or shaping of the internal surface of the tubing.
  • the invention therefore has been developed with a view to provide a wireline broaching tool which has an improved facility to permit withdrawal of the tool in the event of it becoming temporarily jammed or lodged in any section of tubing being worked by the tool.
  • a broaching tool for use in cleaning / scraping and / or shaping the internal surface of tubing along which the tool is conveyed via a wireline
  • said tool comprising: a mandrel which is securable to a wireline to be drawn through tubing to be worked by the tool; and, working tool portions carried by the mandrel to engage the inner wall of the tubing as the tool is drawn through the tubing; in which at least one of said tool portions is slidably mounted on the mandrel to move between an operative position in which an outer working face of the tool portion is engageable with the inner wall of the tubing and a withdrawn position, said tool portion being guided by its mounting on the mandrel to move from the operative position to the withdrawn position upon relative generally axial movement taking place between the mandrel and said one tool portion in order to loosen the tool portion when the latter becomes jammed into engagement with the internal surface of the tubing.
  • said one tool portion is housed in a recess in the mandrel which permits generally axial movement to take place between the mandrel and the tool portion when.the tool portion moves between its operative position and its withdrawn position.
  • the recess may have a guide surface which allows the tool portion to move both axially and radially inwardly as it moves to the withdrawn position, and preferably resilient biasing is provided to urge the tool portion along the recess to take-up the operative position, though the tool portion will move against this resilient biasing when the mandrel is pulled in the reverse direction to free the jammed tool.
  • the mandrel is generally cylindrical, and has a waisted mid-portion of smaller O.D. on which the movable tool portion is mounted.
  • the tool portion may comprise two separate generally semi-cylindrical members, each of which is movable to effect release of the tool, when jammed.
  • Each member will have suitable shaping on its outer surface to carry out a required broaching operation.
  • the ends of the mandrel also may have working surfaces also, so as to be capable of carrying out a working operation when the movable tool portion is in the withdrawn position.
  • the movable tool portion i.e. the two movable tool members are in the operative position, they will project radially outwardly of the cylindrical ends-of the mandrel, to engage the internal surface of the tubing.
  • Figure 1 is a side view, partly In longitudinal section, of a wireline drawn tubing broaching tool according to the invention, with working tool portions shown occupying a radially projecting operative position;
  • Figure 2 is a view, similar to Figure 1 , but showing the position taken—up by the movable working tool portions when they have moved to a radially inward withdrawn position to facilitate removal of the tool when it has become jammed in a section of tubing.
  • a broaching tool according to the invention is designated generally by reference 10 , and is intended for use in cleaning / scraping and / or shaping the internal surface of tubing, such as tubing used in extraction of liquid and gaseous hydrocarbons from an underground reservoir, and along which the tool 10 is conveyed via a wireline.
  • the tool 10 comprises a cylindrical mandrel 11 which is adapted to be securable to a wireline (not shown) in any one of conventional ways, so that the tool can be drawn through tubing to be worked by the tool.
  • the mandrel 11 has cylindrical ends 12, which may be provided on their outer surfaces with suitable working faces, and between the two cylindrical ends 12 the mandrel 11 has a waisted portion 13 of reduced O.D. on which working tool portions are carried, having outer working faces to engage the inner wall of the tubing as the tool is drawn through the tubing.
  • the working tool portions comprise two semi-cylindrical members 14, and each of the members 14 is slidably mounted on mandrel 11 to move between an operative position shown in. Figure 1 in which an outer working face of the member 1 is engageable with the inner wall of the tubing, and a radially withdrawn position shown in Figure 2, in which the overall O.D. of the tool is reduced.
  • Each member 14 is guided by its mounting on the mandrel 11 to move from the operative position shown in Figure 1 to the withdrawn position shown in Figure 2 upon relative generally axial movement taking place between the mandrel 11 and the tool member 14 in order to loosen the tool member when the tool 10 has become jammed in engagement with the internal surface of the tubing.
  • the tool 10 will be moved in one direction (downwardly as shown by arrow X in Figure 1 ) , but in the event of the tool becoming jammed in the tubing for any reason, it is a simple matter to effect release of the tool by drawing the tool 10 in a reverse direction, and the mandrel 11 then moves upwardly relative to the jammed tool portion and this causes the tool portion to be guided to the withdrawn position shown in Figure 2, whereby the overall O.D. of the tool is reduced and the tool then becomes freed.
  • each movable tool member 14 is housed at each end in annular recess 15 in upper cylindrical end 12 and annular recess 16 in the lower cylindrical end 12 of mandrel 11.
  • Recesses 15 and 16 permit generally axial relative movement to take place between mandrel 11 and the tool members 14 when they move between the operative position and the withdrawn position.
  • the mounting of the members 14 on the waisted mid-portion 13 of mandrel 11 includes a guide surface 17 which is co-planar with inner cylindrical surfaces 18 of recesses 15 and 16 and which serve to guide the generally axial movement of the members 14 between the operative positions and the withdrawn positions.
  • guide surface 17 includes radially inwardly projecting cut-outs 19, shaped to receive semi- annular guide shoulders 20 of the members 14 as the members 14 move axially relative to mandrel 11 towards the withdrawn position, and at the same time are allowed to move radially inwardly when shoulders 20 come into register with cut-outs 19, and the movable tool members 14 then take-up the radially withdrawn position shown in Figure 2.
  • resilient means is provided to urge the members 14 to the operative position shown in Figure 1 , which comprises compression springs 21 housed within lower annular recess 16.
  • compression springs 21 housed within lower annular recess 16.
  • the ends of the mandrel 11 also may have working surfaces, which are capable of carrying out a working operation when the moveable tool portions (14) are in the withdrawn position. However, when the moveable tool portions are in the operative position, they will project radially outwardly of the cylindrical ends of the mandrel to engage the internal surface of the tubing.

Landscapes

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

Abstract

A broaching tool (10) for use in cleaning/scraping and/or shaping the internal surface of tubing along which the tool is conveyed via a wireline comprises a mandrel (11) securable to a wireline, and working tool portions (14) carried by the mandrel (11) to engage the inner wall of the tubing as the tool is drawn through the tubing, in which at least one of the tool portions (14) is slidably mounted on the mandrel (11) to move between a radially projecting operative position in which an outer working face of the tool portion is engageable with the inner wall of the tubing and a radially withdrawn position, the tool portion being guided by its mounting on the mandrel to move from the operative position to the withdrawn position upon relative generally axial movement taking place between the mandrel (11) and the tool portion (14) in order to loosen the tool portion when the latter becomes jammed into engagement with the internal surface of the tubing.

Description

BROACHING TOOL FOR TUBING
This invention relates to a broaching tool for use in cleaning, scraping and / or shaping the inner surface of a length of tubing, such as the tubing used in the extraction of liquid and gaseous hydrocarbons from underground reservoirs.
It is usual to use different types of "wireline" drawn tools to clean, scrape, shape or otherwise work the internal surface of production tubing, such tools being attached to a wireline and being drawn through the tubing to carry out any required working operation.
In the case of a tubing broach, this usually comprises an elongate body or mandrel securable to a wireline and having working faces i.e. cutting / scraping faces projecting radially outwardly of the mandrel to engage with the internal surface of the tubing and carry out a required working operation, such as to cut / shape burrs in the tubing caused by perforation, rust, bent tubing and the like.
Usually, a set of spools is provided of increasing size, which can be fitted consecutively on the mandrel, with the smallest spool being fitted first for a first passage along the tubing, and then replaced by a larger O.D. spool which carries out a further pass along the tubing, and which in turn is replaced by a final largest O.D. spool for final action, so that the tool presents a successively larger O.D. cutting / working profile to carry out required cleaning / scraping and / or shaping of the internal surface of the tubing.
Periodic use of wireline broaches is necessary, and existing designs perform generally satisfactorily. However, bearing in mind the nature of the task which a broaching tool has to perform, it is inevitable that from time to time a broaching tool may become jammed in any particular section of tubing while being drawn through it, and retrieval of a jammed broach can be a difficult task, 'as increased effort applied to the wireline may merely result in the broach becoming more tightly jammed in position, and ultimately resulting in failure of the wireline and / or unacceptable damage to the broach.
With existing designs of wireline broach, when this becomes jammed in position, it is often necessary to remove the tool string from the wellbore, which is a time consuming operation which increases the overall time involved in carrying out the broaching operation.
The invention therefore has been developed with a view to provide a wireline broaching tool which has an improved facility to permit withdrawal of the tool in the event of it becoming temporarily jammed or lodged in any section of tubing being worked by the tool.
According to the invention there is provided a broaching tool for use in cleaning / scraping and / or shaping the internal surface of tubing along which the tool is conveyed via a wireline, said tool comprising: a mandrel which is securable to a wireline to be drawn through tubing to be worked by the tool; and, working tool portions carried by the mandrel to engage the inner wall of the tubing as the tool is drawn through the tubing; in which at least one of said tool portions is slidably mounted on the mandrel to move between an operative position in which an outer working face of the tool portion is engageable with the inner wall of the tubing and a withdrawn position, said tool portion being guided by its mounting on the mandrel to move from the operative position to the withdrawn position upon relative generally axial movement taking place between the mandrel and said one tool portion in order to loosen the tool portion when the latter becomes jammed into engagement with the internal surface of the tubing.
Therefore, if the tool should become jammed in position during a broaching operation as it is drawn in one direction through the tubing, it is a simple matter to effect release of the tool by drawing the tool in a reversed direction, whereby the mandrel will tend to move in this direction relative to the jammed tool portion, and this causes the tool portion to be guided to the withdrawn position, whereby the overall O.D. of the tool is reduced and then the tool becomes freed.
Preferably, said one tool portion is housed in a recess in the mandrel which permits generally axial movement to take place between the mandrel and the tool portion when.the tool portion moves between its operative position and its withdrawn position. The recess may have a guide surface which allows the tool portion to move both axially and radially inwardly as it moves to the withdrawn position, and preferably resilient biasing is provided to urge the tool portion along the recess to take-up the operative position, though the tool portion will move against this resilient biasing when the mandrel is pulled in the reverse direction to free the jammed tool.
Conveniently, the mandrel is generally cylindrical, and has a waisted mid-portion of smaller O.D. on which the movable tool portion is mounted. The tool portion may comprise two separate generally semi-cylindrical members, each of which is movable to effect release of the tool, when jammed.
Each member will have suitable shaping on its outer surface to carry out a required broaching operation. The ends of the mandrel also may have working surfaces also, so as to be capable of carrying out a working operation when the movable tool portion is in the withdrawn position. However, when the movable tool portion i.e. the two movable tool members are in the operative position, they will project radially outwardly of the cylindrical ends-of the mandrel, to engage the internal surface of the tubing.
One embodiment of broaching tool according to the invention will now be described in detail, by way of example only, with reference to the accompanying drawing, in which:
Figure 1 is a side view, partly In longitudinal section, of a wireline drawn tubing broaching tool according to the invention, with working tool portions shown occupying a radially projecting operative position; and,
Figure 2 is a view, similar to Figure 1 , but showing the position taken—up by the movable working tool portions when they have moved to a radially inward withdrawn position to facilitate removal of the tool when it has become jammed in a section of tubing.
Referring now to the drawing, a broaching tool according to the invention is designated generally by reference 10 , and is intended for use in cleaning / scraping and / or shaping the internal surface of tubing, such as tubing used in extraction of liquid and gaseous hydrocarbons from an underground reservoir, and along which the tool 10 is conveyed via a wireline.
The tool 10 comprises a cylindrical mandrel 11 which is adapted to be securable to a wireline (not shown) in any one of conventional ways, so that the tool can be drawn through tubing to be worked by the tool. The mandrel 11 has cylindrical ends 12, which may be provided on their outer surfaces with suitable working faces, and between the two cylindrical ends 12 the mandrel 11 has a waisted portion 13 of reduced O.D. on which working tool portions are carried, having outer working faces to engage the inner wall of the tubing as the tool is drawn through the tubing.
In the illustrated embodiment, the working tool portions comprise two semi-cylindrical members 14, and each of the members 14 is slidably mounted on mandrel 11 to move between an operative position shown in.Figure 1 in which an outer working face of the member 1 is engageable with the inner wall of the tubing, and a radially withdrawn position shown in Figure 2, in which the overall O.D. of the tool is reduced. Each member 14 is guided by its mounting on the mandrel 11 to move from the operative position shown in Figure 1 to the withdrawn position shown in Figure 2 upon relative generally axial movement taking place between the mandrel 11 and the tool member 14 in order to loosen the tool member when the tool 10 has become jammed in engagement with the internal surface of the tubing.
During a normal broaching operation, the tool 10 will be moved in one direction (downwardly as shown by arrow X in Figure 1 ) , but in the event of the tool becoming jammed in the tubing for any reason, it is a simple matter to effect release of the tool by drawing the tool 10 in a reverse direction, and the mandrel 11 then moves upwardly relative to the jammed tool portion and this causes the tool portion to be guided to the withdrawn position shown in Figure 2, whereby the overall O.D. of the tool is reduced and the tool then becomes freed.
As can be seen in Figures 1 and 2, each movable tool member 14 is housed at each end in annular recess 15 in upper cylindrical end 12 and annular recess 16 in the lower cylindrical end 12 of mandrel 11. Recesses 15 and 16 permit generally axial relative movement to take place between mandrel 11 and the tool members 14 when they move between the operative position and the withdrawn position. In addition, the mounting of the members 14 on the waisted mid-portion 13 of mandrel 11 includes a guide surface 17 which is co-planar with inner cylindrical surfaces 18 of recesses 15 and 16 and which serve to guide the generally axial movement of the members 14 between the operative positions and the withdrawn positions. However, guide surface 17 includes radially inwardly projecting cut-outs 19, shaped to receive semi- annular guide shoulders 20 of the members 14 as the members 14 move axially relative to mandrel 11 towards the withdrawn position, and at the same time are allowed to move radially inwardly when shoulders 20 come into register with cut-outs 19, and the movable tool members 14 then take-up the radially withdrawn position shown in Figure 2.
The usual direction for carrying out a broaching operation is shown by arrow X in Figure 1 , and it will be noted that resilient means is provided to urge the members 14 to the operative position shown in Figure 1 , which comprises compression springs 21 housed within lower annular recess 16. When the tool 10 is moved upwardly in order to free the jammed portions of the tool, the mandrel 11 moves relative to the jammed tool portions (14) and which therefore move relatively against the action of the springs 21 in order to take-up the withdrawn position. However, once the tool has become freed, the springs 21 can return the members 14 automatically to the operative position.
Although not shown, the ends of the mandrel 11 also may have working surfaces, which are capable of carrying out a working operation when the moveable tool portions (14) are in the withdrawn position. However, when the moveable tool portions are in the operative position, they will project radially outwardly of the cylindrical ends of the mandrel to engage the internal surface of the tubing.

Claims

1. A broaching tool (10) for use in cleaning/scraping and/or shaping the internal surface of tubing along which the tool is conveyed via a wireline, said tool comprising: a mandrel (11) which is securable to a wireline to be drawn through tubing to be worked by the tool; and working tool portions (14) carried by the mandrel (11) to engage the inner wall of the tubing as the tool is drawn through the tubing; characterised in that at least one of said tool portions (14) is slidably mounted on the mandrel (11) to move between an operative position in which an outer working face of the tool portion is engageable with the inner wall of the tubing and a withdrawn position, said tool portion (14) being guided by its mounting on the mandrel (11) to move from the operative position to the withdrawn position upon relative generally axial movement taking place between the mandrel (11) and said one tool portion (14) in order to loosen the tool portion when the latter becomes jammed into engagement with the internal surface of the tubing.
2. A broaching tool according to claim 1 , characterised in that said one tool portion (14) is housed in a recess (15, 16) in the mandrel (11) which permits ' generally axial movement to take place between the mandrel and the tool portion when the tool portion moves between its operative position and its withdrawn position.
3. A broaching tool according to claim 2, characterised in that the recess has a guide surface (17) which allows the tool portion (14) to move both axially and radially inwardly as it moves to the withdrawn position.
4. A broaching tool according to claim 2 or 3, characterised by resilient biasing (21) arranged to urge the tool portion (14) along the recess (15) to take-up the operative position, the tool portion being moveable against the resilient biasing (21) when the mandrel (11) is pulled in the reverse direction to free the jammed tool.
5. A broaching tool according to any one of claims 1 to 4, characterised in that the mandrel (11) is generally cylindrical, and has a waisted mid-portion (13) of smaller outer diameter on which the moveable tool portion (14) is mounted.
6. A broaching tool according to claim 5, characterised in the tool portion comprises two separate generally semi—cylindrical members (14), each of which is moveable to effect release of the tool when jammed.
7. A broaching tool according to claim 6, characterised in that each member (14) has suitable shaping on its outer surface to carry out a broaching operation.
8. A broaching tool according to any one of claims 1 to 7, characterised in that the ends of the mandrel (11) have working surfaces, separate from the working surfaces of the working tool portions (14), and capable of carrying out a working operation when the moveable tool portion (14) is in the withdrawn position.
PCT/GB1993/000415 1992-02-26 1993-02-26 Broaching tool for tubing WO1993016833A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9322069A GB2271304A (en) 1992-02-26 1993-02-26 Boaching tool for tubing

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB929204068A GB9204068D0 (en) 1992-02-26 1992-02-26 Broaching tool for tubing
GB9204068.2 1992-02-26

Publications (1)

Publication Number Publication Date
WO1993016833A1 true WO1993016833A1 (en) 1993-09-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1993/000415 WO1993016833A1 (en) 1992-02-26 1993-02-26 Broaching tool for tubing

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GB (2) GB9204068D0 (en)
WO (1) WO1993016833A1 (en)

Cited By (11)

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GB2346629A (en) * 1999-02-08 2000-08-16 Specialised Petroleum Serv Ltd Apparatus with retractable cleaning members
WO2004005668A1 (en) * 2002-07-10 2004-01-15 Collapsing Stabilizer Tool, Ltd Downhole drill string having a collapsible subassembly
WO2008124636A1 (en) * 2007-04-04 2008-10-16 Weatherford/Lamb, Inc. Apparatus and methods of milling a restricted casing shoe
GB2454450A (en) * 2007-09-04 2009-05-13 Hamdeen Inc Ltd Cleaning / scraping tool
WO2009123468A1 (en) * 2008-04-03 2009-10-08 Aker Well Service As Cleaning tool device
WO2014003576A3 (en) * 2012-06-27 2014-05-30 Odfjell Well Services Europe As Drill string mountable wellbore cleanup apparatus and method
WO2014151306A3 (en) * 2013-03-15 2015-04-30 Weatherford/Lamb, Inc. Downhole tool for debris removal
CN104708115A (en) * 2015-02-27 2015-06-17 哈尔滨汽轮机厂有限责任公司 Guide scraper rod for machining deep hole scraping face
CN104763367A (en) * 2015-03-24 2015-07-08 中国石油天然气股份有限公司 Pigging and pipe scraping integrated tool
US10675729B2 (en) 2017-05-31 2020-06-09 Baker Hughes, A Ge Company, Llc Electromechanical rotary pipe mill or hone and method
CN113550708A (en) * 2021-08-12 2021-10-26 中国石油大学(华东) Oil field casing pipe shaping device

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CA2492626C (en) * 2004-01-16 2010-04-20 Weatherford/Lamb, Inc. Flexible wellbore broach

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Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2346629A (en) * 1999-02-08 2000-08-16 Specialised Petroleum Serv Ltd Apparatus with retractable cleaning members
GB2346629B (en) * 1999-02-08 2001-04-18 Specialised Petroleum Serv Ltd Apparatus with retractable cleaning members
WO2004005668A1 (en) * 2002-07-10 2004-01-15 Collapsing Stabilizer Tool, Ltd Downhole drill string having a collapsible subassembly
WO2008124636A1 (en) * 2007-04-04 2008-10-16 Weatherford/Lamb, Inc. Apparatus and methods of milling a restricted casing shoe
US8146682B2 (en) 2007-04-04 2012-04-03 Weatherford/Lamb, Inc. Apparatus and methods of milling a restricted casing shoe
GB2454450A (en) * 2007-09-04 2009-05-13 Hamdeen Inc Ltd Cleaning / scraping tool
US8002037B2 (en) 2007-09-04 2011-08-23 Hamdeen Incorporated Limited Downhole cleaning tool and method of use
GB2454450B (en) * 2007-09-04 2012-01-11 Weatherford Switzerland Trading And Dev Gmbh Downhole cleaning tool
WO2009123468A1 (en) * 2008-04-03 2009-10-08 Aker Well Service As Cleaning tool device
US10190393B2 (en) * 2012-06-27 2019-01-29 Odfjell Well Services Norway As Drill string mountable wellbore cleanup apparatus and method
US10961822B2 (en) * 2012-06-27 2021-03-30 Odfjell Well Services As Drill string mountable wellbore cleanup apparatus and method
US11988070B2 (en) * 2012-06-27 2024-05-21 Odfjell Well Services Norway As Drill string mountable wellbore cleanup apparatus and method
US11560773B2 (en) * 2012-06-27 2023-01-24 Odfjell Well Services Norway As Drill string mountable wellbore cleanup apparatus and method
US10619454B2 (en) * 2012-06-27 2020-04-14 Odfjell Well Services Norway As Drill string mountable wellbore cleanup apparatus and method
US20190226300A1 (en) * 2012-06-27 2019-07-25 Odfjell Well Services Norway As Drill string mountable wellbore cleanup apparatus and method
US9528325B2 (en) 2012-06-27 2016-12-27 Odfjell Well Services Norway As Drill string mountable wellbore cleanup apparatus and method
WO2014003576A3 (en) * 2012-06-27 2014-05-30 Odfjell Well Services Europe As Drill string mountable wellbore cleanup apparatus and method
US9885227B2 (en) 2012-06-27 2018-02-06 Odfjell Well Services Norway As Drill string mountable wellbore cleanup apparatus and method
GB2528593B (en) * 2013-03-15 2017-02-22 Weatherford Lamb Inc Downhole tool for debris removal
US9404329B2 (en) 2013-03-15 2016-08-02 Weatherford Technology Holdings, Llc Downhole tool for debris removal
GB2528593A (en) * 2013-03-15 2016-01-27 Weatherford Lamb Downhole tool for debris removal
WO2014151306A3 (en) * 2013-03-15 2015-04-30 Weatherford/Lamb, Inc. Downhole tool for debris removal
CN104708115A (en) * 2015-02-27 2015-06-17 哈尔滨汽轮机厂有限责任公司 Guide scraper rod for machining deep hole scraping face
CN104763367A (en) * 2015-03-24 2015-07-08 中国石油天然气股份有限公司 Pigging and pipe scraping integrated tool
US10675729B2 (en) 2017-05-31 2020-06-09 Baker Hughes, A Ge Company, Llc Electromechanical rotary pipe mill or hone and method
CN113550708A (en) * 2021-08-12 2021-10-26 中国石油大学(华东) Oil field casing pipe shaping device
CN113550708B (en) * 2021-08-12 2023-03-14 中国石油大学(华东) Oil field casing pipe shaping device

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GB2271304A (en) 1994-04-13
GB9204068D0 (en) 1992-04-08
GB9322069D0 (en) 1994-02-09

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