US20140138091A1 - Downhole Cutting Arrangement and Method - Google Patents
Downhole Cutting Arrangement and Method Download PDFInfo
- Publication number
- US20140138091A1 US20140138091A1 US13/681,673 US201213681673A US2014138091A1 US 20140138091 A1 US20140138091 A1 US 20140138091A1 US 201213681673 A US201213681673 A US 201213681673A US 2014138091 A1 US2014138091 A1 US 2014138091A1
- Authority
- US
- United States
- Prior art keywords
- impeller
- cutting blade
- pipe cutter
- tubular member
- cut
- 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
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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
- 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
- E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
-
- 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
- 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
- E21B29/002—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe
- E21B29/005—Cutting, e.g. milling, a pipe with a cutter rotating along the circumference of the pipe with a radially-expansible cutter rotating inside the pipe, e.g. for cutting an annular window
Definitions
- the invention relates generally to cutting devices useful for cutting tubular members.
- Pipe cutters are used to cut tubular members.
- Pipe cutters typically include a circular cutting blade that is mounted upon a spindle.
- the spindle is mounted upon an arm that can be moved radially out through a slot in a surrounding housing to be brought into cutting contact with a surrounding tubular member to be cut. During cutting, the blade can rotate at approximately 100 rpm.
- Pipe cutters are often used downhole, being run in on a tool string to cut a casing member within a wellbore.
- Commercially available pipe cutters include the MPC Mechanical Pipe Cutter from Baker Hughes Incorporated of Houston, Tex.
- the pipe cutter is disposed within a tubular member to be cut, and the cutting blade is rotated by a motor.
- the arm is them moved so that the cutting blade is placed in cutting contact with the tubular member.
- the pipe cutter also rotates about it central axis, causing a circumferential cut to be made in the surrounding tubular member.
- Cuttings or filings create a problem during cutting. They can cause damage to the cutting blade or prevent a clean cut from being made. As a cut is made deeper, the cuttings can become trapped within the cut, magnifying the problems.
- a downhole pipe cutter includes an impeller that is mounted proximate the cutting blade and rotates with the cutting blade.
- the impeller includes one or more paddles that extend radially outwardly from the hub of the spindle.
- the one or more paddles extend radially outwardly from a central impeller ring. The impeller is rotated with the cutting blade. During cutting, the impeller paddles induce liquid flow and turbulence proximate the area of the tubular being cut. This flow and turbulence will wash and remove cuttings from the cut being made.
- the impeller is formed of an elastomer.
- the impeller is formed of polysiloxane, poly-ether-ether-ketone, polytetrafluoroethylene or another plastic or thermoplastic.
- the impeller is formed of steel or aluminum or another metal.
- a flow housing is located partially around the impeller.
- the flow housing includes a top plate that lies substantially parallel to the cutting blade and a circumferential side wall that lies radially outside of the paddles. The flow housing helps to improve fluid flow proximate the cut being made.
- FIG. 1 is an isometric view of an exemplary pipe cutter which incorporates an impeller in accordance with the present invention.
- FIG. 2 is an enlarged isometric view of portions of the pipe cutter shown in FIG. 1 .
- FIG. 3 is an external, isometric view of an exemplary impeller shown apart from the other components of the pipe cutter.
- FIG. 4 is a cross-sectional view showing the pipe cutter cutting an exemplary tubular member.
- FIG. 5 is a cross-sectional view of an alternative embodiment pipe cutter which includes a flow housing proximate the impeller.
- FIG. 6 is an isometric view of the alternative exemplary pipe cutter shown in FIG. 5 .
- FIG. 7 is a schematic side view of an alternative embodiment wherein an impeller is disposed on both axial sides of a cutting blade.
- FIGS. 1-4 depict an exemplary pipe cutter 10 which is used to cut tubular members.
- the pipe cutter 10 generally includes a tubular housing 12 having a tapered nose portion 14 .
- the housing 12 is shaped and sized to be disposed within a tubular member that is to be cut.
- a cavity 16 is defined within the housing 12 .
- the cavity 16 is shaped and sized to retain within a support arm 18 which carries a rotary spindle 20 as well as a circular cutting blade 22 .
- a circular cutting blade 22 is mounted upon the spindle 20 and can be rotated by a motor (not shown) contained within the pipe cutter 10 in a manner known in the art.
- the support arm 18 is articulable so that the cutting blade 22 can be moved into or out of the cavity 16 during a cutting operation.
- An impeller 24 is also mounted upon the spindle 20 and is rotated along with the cutting blade 22 .
- the impeller 24 is preferably affixed to the cutting blade 22 using an adhesive or connectors or in another manner known in the art.
- the impeller 24 includes one or more paddles 26 that extend radially outwardly along the lo blade from the vicinity of the spindle 20 .
- the impeller 24 includes a central impeller ring 28 from which the paddles 26 extend radially outwardly. In the illustrated embodiment, there are eight paddles 26 . However, there may be more or fewer than eight paddles 26 .
- the impeller 24 is formed of an elastomer.
- the impeller 24 is formed of polysiloxane, poly-ether-ether-ketone, polytetrafluoroethylene or another plastic or thermoplastic.
- the impeller 24 is formed of steel or aluminum or another metal.
- the impeller 24 can be formed by molding, water jet cutting, laser cutting, machining or in other ways known in the art.
- the impeller 24 is located on the lower side of the cutting blade 22 (i.e., the side that is further downhole), as illustrated in FIG. 1 .
- the pipe cutter 10 would operate as effectively if the impeller 24 were placed on the upper side of the cutting blade 22 .
- the cutting blade 22 might have an impeller 24 on both sides of the cutting blade 22 .
- FIG. 7 depicts a cutting assembly wherein there are impellers 24 and 24 placed on both axial sides of a cutting blade 22 .
- FIG. 4 illustrates the pipe cutter 10 being used to cut a surrounding tubular member 30 .
- a cut 32 is being created as the cutting blade 22 is rotated in the direction of arrow 34 .
- the paddies 26 push the fluid to create flow and turbulence in the wellbore fluid proximate the cut 32 in the general area shown at 36 in FIG. 4 . This flow and turbulence will act to remove cuttings from the cut 32 and the area proximate the cut 32 .
- FIGS. 5 and 6 illustrate an alternative pipe cutter 10 ′ which includes a flow housing or shroud 40 which is located proximate the impeller 24 .
- the flow housing 40 functions to help increase fluid flow proximate the cut 32 . By containing fluid proximate the paddles 26 , a more directed stream of higher velocity is created.
- the flow housing 40 includes a curved, crescent-shaped top plate 42 and a circumferential side wall 44 which are interconnected and form an interior enclosure 46 .
- the flow housing 40 is supported by a support arm 48 which retains the flow housing 40 in a fixed position proximate the cutting blade 22 and impeller 24 .
- the support arm 48 fixes the flow housing 40 in a position such that the top plate 42 is substantially parallel to the cutting blade 22 and the side wall 44 lies radially outside of the paddles 26 .
- a suitable grease can be used to assist cutting of high strength alloys or other materials.
- the grease is applied to the paddles 26 prior to run-in and cutting. During operation to cut a tubular member, centrifugal force will cause grease to be applied to the cut from the paddles 26 .
- the invention also provides methods for cutting a tubular member.
- the pipe cutter 10 or 10 ′ is disposed within a tubular member 30 to be cut.
- the cutting blade 22 is then rotated to cut the tubular member 30 .
- the impeller 24 is rotated to cause fluid flow and turbulence proximate the cut being made in the tubular member, thereby helping to remove cuttings from the cut.
Abstract
Devices and methods for cleaning or removing cuttings from a cut as cutting is being performed. A pipe cutter includes a housing shaped and sized to be disposed within the tubular member, a rotary cutting blade carried by the housing to cut the tubular member when rotated and an impeller operably associated with the cutting blade to create fluid flow and turbulence proximate a cut being made in the tubular member
Description
- 1. Field of the Invention
- The invention relates generally to cutting devices useful for cutting tubular members.
- 2. Description of the Related Art
- Pipe cutters are used to cut tubular members. Pipe cutters typically include a circular cutting blade that is mounted upon a spindle. The spindle, in turn, is mounted upon an arm that can be moved radially out through a slot in a surrounding housing to be brought into cutting contact with a surrounding tubular member to be cut. During cutting, the blade can rotate at approximately 100 rpm. Pipe cutters are often used downhole, being run in on a tool string to cut a casing member within a wellbore. Commercially available pipe cutters include the MPC Mechanical Pipe Cutter from Baker Hughes Incorporated of Houston, Tex.
- In operation, the pipe cutter is disposed within a tubular member to be cut, and the cutting blade is rotated by a motor. The arm is them moved so that the cutting blade is placed in cutting contact with the tubular member. The pipe cutter also rotates about it central axis, causing a circumferential cut to be made in the surrounding tubular member.
- Cuttings or filings create a problem during cutting. They can cause damage to the cutting blade or prevent a clean cut from being made. As a cut is made deeper, the cuttings can become trapped within the cut, magnifying the problems.
- The invention provides systems and methods for cleaning or removing cuttings from a cut as cutting is being performed. In a described embodiment, a downhole pipe cutter includes an impeller that is mounted proximate the cutting blade and rotates with the cutting blade. In a described embodiment, the impeller includes one or more paddles that extend radially outwardly from the hub of the spindle. In a particular embodiment, the one or more paddles extend radially outwardly from a central impeller ring. The impeller is rotated with the cutting blade. During cutting, the impeller paddles induce liquid flow and turbulence proximate the area of the tubular being cut. This flow and turbulence will wash and remove cuttings from the cut being made.
- In particular embodiments, the impeller is formed of an elastomer. In alternative embodiments, the impeller is formed of polysiloxane, poly-ether-ether-ketone, polytetrafluoroethylene or another plastic or thermoplastic. In still other embodiments, the impeller is formed of steel or aluminum or another metal.
- In an alternative embodiment, a flow housing is located partially around the impeller. In a described embodiment, the flow housing includes a top plate that lies substantially parallel to the cutting blade and a circumferential side wall that lies radially outside of the paddles. The flow housing helps to improve fluid flow proximate the cut being made.
- For a thorough understanding of the present invention, reference is made to the following detailed description of the preferred embodiments, taken in conjunction with the accompanying drawings, wherein like reference numerals designate like or similar elements throughout the several figures of the drawings and wherein:
-
FIG. 1 is an isometric view of an exemplary pipe cutter which incorporates an impeller in accordance with the present invention. -
FIG. 2 is an enlarged isometric view of portions of the pipe cutter shown inFIG. 1 . -
FIG. 3 is an external, isometric view of an exemplary impeller shown apart from the other components of the pipe cutter. -
FIG. 4 is a cross-sectional view showing the pipe cutter cutting an exemplary tubular member. -
FIG. 5 is a cross-sectional view of an alternative embodiment pipe cutter which includes a flow housing proximate the impeller. -
FIG. 6 is an isometric view of the alternative exemplary pipe cutter shown inFIG. 5 . -
FIG. 7 is a schematic side view of an alternative embodiment wherein an impeller is disposed on both axial sides of a cutting blade. -
FIGS. 1-4 depict anexemplary pipe cutter 10 which is used to cut tubular members. Thepipe cutter 10 generally includes atubular housing 12 having atapered nose portion 14. Thehousing 12 is shaped and sized to be disposed within a tubular member that is to be cut. As can be seen with reference toFIG. 4 , acavity 16 is defined within thehousing 12. Thecavity 16 is shaped and sized to retain within asupport arm 18 which carries arotary spindle 20 as well as acircular cutting blade 22. Acircular cutting blade 22 is mounted upon thespindle 20 and can be rotated by a motor (not shown) contained within thepipe cutter 10 in a manner known in the art. Thesupport arm 18 is articulable so that thecutting blade 22 can be moved into or out of thecavity 16 during a cutting operation. - An
impeller 24 is also mounted upon thespindle 20 and is rotated along with thecutting blade 22. Theimpeller 24 is preferably affixed to thecutting blade 22 using an adhesive or connectors or in another manner known in the art. In a particular embodiment, theimpeller 24 includes one ormore paddles 26 that extend radially outwardly along the lo blade from the vicinity of thespindle 20. In certain embodiments, theimpeller 24 includes acentral impeller ring 28 from which thepaddles 26 extend radially outwardly. In the illustrated embodiment, there are eightpaddles 26. However, there may be more or fewer than eightpaddles 26. - In a particular embodiment, the
impeller 24 is formed of an elastomer. In alternative embodiments, theimpeller 24 is formed of polysiloxane, poly-ether-ether-ketone, polytetrafluoroethylene or another plastic or thermoplastic. In still other embodiments, theimpeller 24 is formed of steel or aluminum or another metal. Theimpeller 24 can be formed by molding, water jet cutting, laser cutting, machining or in other ways known in the art. In the depicted embodiment, theimpeller 24 is located on the lower side of the cutting blade 22 (i.e., the side that is further downhole), as illustrated inFIG. 1 . However, it should be understood that thepipe cutter 10 would operate as effectively if theimpeller 24 were placed on the upper side of thecutting blade 22. In addition, thecutting blade 22 might have animpeller 24 on both sides of thecutting blade 22.FIG. 7 depicts a cutting assembly wherein there areimpellers cutting blade 22. - During operation, the
pipe cutter 10 is submerged within wellbore fluid. Typical wellbore fluids include brine, fresh water, seawater, production hydrocarbons and water or oil-based muds.FIG. 4 illustrates thepipe cutter 10 being used to cut a surroundingtubular member 30. As depicted, acut 32 is being created as thecutting blade 22 is rotated in the direction ofarrow 34. As cutting occurs, thepaddies 26 push the fluid to create flow and turbulence in the wellbore fluid proximate thecut 32 in the general area shown at 36 inFIG. 4 . This flow and turbulence will act to remove cuttings from thecut 32 and the area proximate thecut 32. -
FIGS. 5 and 6 illustrate analternative pipe cutter 10′ which includes a flow housing orshroud 40 which is located proximate theimpeller 24. Theflow housing 40 functions to help increase fluid flow proximate thecut 32. By containing fluid proximate thepaddles 26, a more directed stream of higher velocity is created. In the depicted embodiment, theflow housing 40 includes a curved, crescent-shapedtop plate 42 and acircumferential side wall 44 which are interconnected and form aninterior enclosure 46. In the depicted embodiment, theflow housing 40 is supported by asupport arm 48 which retains theflow housing 40 in a fixed position proximate thecutting blade 22 andimpeller 24. Thesupport arm 48 fixes theflow housing 40 in a position such that thetop plate 42 is substantially parallel to thecutting blade 22 and theside wall 44 lies radially outside of thepaddles 26. - A suitable grease can be used to assist cutting of high strength alloys or other materials. In a particular embodiment, the grease is applied to the
paddles 26 prior to run-in and cutting. During operation to cut a tubular member, centrifugal force will cause grease to be applied to the cut from thepaddles 26. - It can be seen that the invention also provides methods for cutting a tubular member. According to an exemplary method of cutting, the
pipe cutter tubular member 30 to be cut. Thecutting blade 22 is then rotated to cut thetubular member 30. Theimpeller 24 is rotated to cause fluid flow and turbulence proximate the cut being made in the tubular member, thereby helping to remove cuttings from the cut. - Those of skill in the art will recognize that numerous modifications and changes may be made to the exemplary designs and embodiments described herein and that the invention is limited only by the claims that follow and any equivalents thereof.
Claims (15)
1. A pipe cutter for use in cutting a tubular member and comprising:
a housing shaped and sized to be disposed within the tubular member;
a rotary cutting blade carried by the housing to cut the tubular member when rotated; and
an impeller operably associated with the cutting blade to create fluid flow and turbulence proximate a cut being made in the tubular member.
2. The pipe cutter of claim 1 wherein the impeller comprises one or more paddles which extend radially along the blade.
3. The pipe cutter of claim 2 wherein the impeller further comprises an impeller ring from which the one or more paddles extend radially outwardly along the blade.
4. The pipe cutter of claim 1 wherein the impeller is affixed to the cutting blade.
5. The pipe cutter of claim 1 further comprising a flow housing operably associated with the impeller to direct fluid flow.
6. The pipe cutter of claim 5 wherein the flow housing comprises:
a top plate that lies substantially parallel to the cutting blade; and
a circumferential side wall that lies radially outside of the one or more paddles.
7. The pipe cutter of claim 1 wherein an impeller is disposed upon each axial side of the cutting blade.
8. A pipe cutter for use in cutting a tubular member and comprising:
a housing shaped and sized to be disposed within the tubular member;
a rotary cutting blade carried by the housing and mounted upon a spindle to cut the tubular member when rotated; and
an impeller operably associated with the cutting blade to create fluid flow and turbulence proximate a cut being made in the tubular member, the impeller comprising one or more paddles which extend radially along the cutting blade.
9. The pipe cutter of claim 8 wherein the impeller further comprises an impeller ring from which the one or more paddles extend radially outwardly along the blade.
10. The pipe cutter of claim 8 wherein the impeller is affixed to the cutting blade.
11. The pipe cutter of claim 8 further comprising a flow housing operably associated with the impeller to direct fluid flow.
12. The pipe cutter of claim 10 wherein the flow housing comprises:
a top plate that lies substantially parallel to the cutting blade; and
a circumferential side wall that lies radially outside of the one or more paddles.
13. The pipe cutter of claim 8 wherein an impeller is disposed upon each axial side of the cutting blade.
14. A method of cutting a tubular member comprising the steps of:
disposing a pipe cutter within the tubular member, the pipe cutter having a housing, a rotary cutting blade carried by the housing, and an impeller operably associated with the cutting blade and having one or more paddles which extend radially along the cutting blade;
rotating the cutting blade to cut the tubular member; and
rotating the impeller to create fluid flow and turbulence proximate the cut to help remove cuttings from the cut.
15. The method of claim 14 wherein the step of rotating the impeller to create fluid flow and turbulence further comprises pushing the fluid with one or more paddles.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/681,673 US20140138091A1 (en) | 2012-11-20 | 2012-11-20 | Downhole Cutting Arrangement and Method |
US13/758,283 US9410389B2 (en) | 2012-11-20 | 2013-02-04 | Self-cleaning fluid jet for downhole cutting operations |
PCT/US2013/069160 WO2014081583A1 (en) | 2012-11-20 | 2013-11-08 | Downhole cutting arrangement and method |
EP13857554.3A EP2923032A1 (en) | 2012-11-20 | 2013-11-08 | Downhole cutting arrangement and method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/681,673 US20140138091A1 (en) | 2012-11-20 | 2012-11-20 | Downhole Cutting Arrangement and Method |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/758,283 Continuation-In-Part US9410389B2 (en) | 2012-11-20 | 2013-02-04 | Self-cleaning fluid jet for downhole cutting operations |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140138091A1 true US20140138091A1 (en) | 2014-05-22 |
Family
ID=50726821
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/681,673 Abandoned US20140138091A1 (en) | 2012-11-20 | 2012-11-20 | Downhole Cutting Arrangement and Method |
Country Status (3)
Country | Link |
---|---|
US (1) | US20140138091A1 (en) |
EP (1) | EP2923032A1 (en) |
WO (1) | WO2014081583A1 (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111395970A (en) * | 2020-04-30 | 2020-07-10 | 中国石油天然气集团有限公司 | Active anti-sticking PDC drill bit with rotary rock breaking device |
WO2021034839A1 (en) * | 2019-08-20 | 2021-02-25 | Saudi Arabian Oil Company | Vertically cutting downhole tubulars |
US11448026B1 (en) | 2021-05-03 | 2022-09-20 | Saudi Arabian Oil Company | Cable head for a wireline tool |
US11549329B2 (en) | 2020-12-22 | 2023-01-10 | Saudi Arabian Oil Company | Downhole casing-casing annulus sealant injection |
US11598178B2 (en) | 2021-01-08 | 2023-03-07 | Saudi Arabian Oil Company | Wellbore mud pit safety system |
US11802457B1 (en) * | 2022-05-12 | 2023-10-31 | Halliburton Energy Services, Inc. | Cutting tool with spiral cutouts for metal cuttings removal |
US11828128B2 (en) | 2021-01-04 | 2023-11-28 | Saudi Arabian Oil Company | Convertible bell nipple for wellbore operations |
US11859815B2 (en) | 2021-05-18 | 2024-01-02 | Saudi Arabian Oil Company | Flare control at well sites |
US11905791B2 (en) | 2021-08-18 | 2024-02-20 | Saudi Arabian Oil Company | Float valve for drilling and workover operations |
US11913298B2 (en) | 2021-10-25 | 2024-02-27 | Saudi Arabian Oil Company | Downhole milling system |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2482674A (en) * | 1945-06-05 | 1949-09-20 | Baker Oil Tools Inc | Casing cutter apparatus |
US5539985A (en) * | 1994-11-21 | 1996-07-30 | Wershe; Richard | Blower attachment for a circular saw |
US20070131410A1 (en) * | 2005-12-09 | 2007-06-14 | Baker Hughes, Incorporated | Downhole hydraulic pipe cutter |
US20110000668A1 (en) * | 2009-07-06 | 2011-01-06 | Tunget Bruce A | Through tubing cable rotary system |
US20110192589A1 (en) * | 2007-03-26 | 2011-08-11 | Baker Hughes Incorporated | Optimized machining process for cutting tubulars downhole |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7118327B2 (en) * | 2003-07-18 | 2006-10-10 | Envirotech Pumpsystems, Inc. | Impeller and cutting elements for centrifugal chopper pumps |
US7478982B2 (en) * | 2006-10-24 | 2009-01-20 | Baker Hughes, Incorporated | Tubular cutting device |
US7628205B2 (en) * | 2007-03-26 | 2009-12-08 | Baker Hughes Incorporated | Optimized machining process for cutting tubulars downhole |
US7575056B2 (en) * | 2007-03-26 | 2009-08-18 | Baker Hughes Incorporated | Tubular cutting device |
US7574807B1 (en) * | 2007-04-19 | 2009-08-18 | Holelocking Enterprises Llc | Internal pipe cutter |
-
2012
- 2012-11-20 US US13/681,673 patent/US20140138091A1/en not_active Abandoned
-
2013
- 2013-11-08 WO PCT/US2013/069160 patent/WO2014081583A1/en active Application Filing
- 2013-11-08 EP EP13857554.3A patent/EP2923032A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2482674A (en) * | 1945-06-05 | 1949-09-20 | Baker Oil Tools Inc | Casing cutter apparatus |
US5539985A (en) * | 1994-11-21 | 1996-07-30 | Wershe; Richard | Blower attachment for a circular saw |
US20070131410A1 (en) * | 2005-12-09 | 2007-06-14 | Baker Hughes, Incorporated | Downhole hydraulic pipe cutter |
US20110192589A1 (en) * | 2007-03-26 | 2011-08-11 | Baker Hughes Incorporated | Optimized machining process for cutting tubulars downhole |
US20110000668A1 (en) * | 2009-07-06 | 2011-01-06 | Tunget Bruce A | Through tubing cable rotary system |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021034839A1 (en) * | 2019-08-20 | 2021-02-25 | Saudi Arabian Oil Company | Vertically cutting downhole tubulars |
US11008824B2 (en) | 2019-08-20 | 2021-05-18 | Saudi Arabian Oil Company | Vertically cutting downhole tubulars |
CN111395970A (en) * | 2020-04-30 | 2020-07-10 | 中国石油天然气集团有限公司 | Active anti-sticking PDC drill bit with rotary rock breaking device |
US11549329B2 (en) | 2020-12-22 | 2023-01-10 | Saudi Arabian Oil Company | Downhole casing-casing annulus sealant injection |
US11828128B2 (en) | 2021-01-04 | 2023-11-28 | Saudi Arabian Oil Company | Convertible bell nipple for wellbore operations |
US11598178B2 (en) | 2021-01-08 | 2023-03-07 | Saudi Arabian Oil Company | Wellbore mud pit safety system |
US11448026B1 (en) | 2021-05-03 | 2022-09-20 | Saudi Arabian Oil Company | Cable head for a wireline tool |
US11859815B2 (en) | 2021-05-18 | 2024-01-02 | Saudi Arabian Oil Company | Flare control at well sites |
US11905791B2 (en) | 2021-08-18 | 2024-02-20 | Saudi Arabian Oil Company | Float valve for drilling and workover operations |
US11913298B2 (en) | 2021-10-25 | 2024-02-27 | Saudi Arabian Oil Company | Downhole milling system |
US11802457B1 (en) * | 2022-05-12 | 2023-10-31 | Halliburton Energy Services, Inc. | Cutting tool with spiral cutouts for metal cuttings removal |
US20230366283A1 (en) * | 2022-05-12 | 2023-11-16 | Halliburton Energy Services, Inc. | Cutting tool with spiral cutouts for metal cuttings removal |
Also Published As
Publication number | Publication date |
---|---|
EP2923032A1 (en) | 2015-09-30 |
WO2014081583A1 (en) | 2014-05-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BAKER HUGHES INCORPORATED, TEXAS Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FUHST, KARSTEN;REEL/FRAME:029489/0821 Effective date: 20121121 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |