US2743781A - Hydraulic anchor tool - Google Patents

Hydraulic anchor tool Download PDF

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Publication number
US2743781A
US2743781A US306227A US30622752A US2743781A US 2743781 A US2743781 A US 2743781A US 306227 A US306227 A US 306227A US 30622752 A US30622752 A US 30622752A US 2743781 A US2743781 A US 2743781A
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United States
Prior art keywords
piston
tool
tooth
barrel
jacket
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Expired - Lifetime
Application number
US306227A
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English (en)
Inventor
John J Lane
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Guiberson Corp
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Guiberson Corp
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Filing date
Publication date
Application filed by Guiberson Corp filed Critical Guiberson Corp
Priority to US306227A priority Critical patent/US2743781A/en
Priority to GB22487/53A priority patent/GB734154A/en
Priority to FR1087045D priority patent/FR1087045A/fr
Priority to NL181389A priority patent/NL87905C/xx
Priority to CH326074D priority patent/CH326074A/de
Priority to BE523044D priority patent/BE523044A/xx
Priority to DEG12879A priority patent/DE945321C/de
Application granted granted Critical
Publication of US2743781A publication Critical patent/US2743781A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • E21B23/01—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for anchoring the tools or the like
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/0411—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion specially adapted for anchoring tools or the like to the borehole wall or to well tube
    • E21B23/04115—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion specially adapted for anchoring tools or the like to the borehole wall or to well tube using radial pistons

Definitions

  • This invention employs a barrel having a hollow interior; and a number of separate and independently operated pistons are slideably carried by the wall of the barrel, so as to be movable therethrough in response to fluid pressure introduced into the barrel behind the head of pressure introduced into the barrel, until the free end of each piston is separately and individually set in biting engagement with the inner wall of the surrounding vessel, to which the tool is thus securely but releasably anchored.
  • each separate piston extendable outside of the barrel of the tool, is provided with only a single tooth; and the outermost end of each such single tooth is provided with a biting or gripping edge for engagement in making anchor; and such edge is continuously kept sharp and capable of slight penetration into the walls of the surrounding vessel to which the tool is anchored.
  • Each individual tooth is kept self-sharpened by the regular introduction, use and removal of the tool, in normal operation, within the surrounding vessel, pipe or casing to which the tool is set and fastened in a releasable holding relation.
  • Each anchoring tooth of this device has behind it a single piston, which is individually moved and operated, inwardly and outwardly, by fluid pressure. Such pressure is applied to the inner side of the piston to force its single tooth into positive anchor engagement; and release from engagement may be effected by the application of fluid pressure to the outer side of the piston.
  • An extremely compact, highly dependable, self-centering, hydraulic anchor tool wherein anchorage is provided by a multiple number of separately spaced teeth so constructed and arranged that each tooth is singly operated by remote control; and in which each tooth engages and does full duty and carries equal load; and in which each individual gripping tooth equally prevents tool movement in every direction; and in which the cited States Patent 0 ilfi lfifliil Patented May 1, 1956 "ice efiectiveness of hydraulic power is greatly increased, so that there is exerted extremely efifective unit power at the gripping point of each tooth.
  • the uses of the hydraulic anchor tool which is the subject of this invention are many, and they extend into the several fields of industrial activity.
  • This tool is primarily made for use in wells, such as wells for oil, gas and Water.
  • the tool is essentially an anchor. That is to say, the main purpose of this tool is to provide a holding device. It works to hold together two bodies, one of which is the anchor tool itself, and the other of which is a surrounding vessel having an inner Wall spaced outwardly from and about the barrel of this anchor tool.
  • the tool may be used in securing and holding together two such bodies, in an extremely strong, stable and rigid connection. Such connection may be maintained for such period of time as may be desired, and it may be instantly and easily released at Wil.
  • the capacity of the tool to be so completely, although releasahly, fixed within a surrounding vessel, as to prevent relative movement therebetween, is but one of the advantages of its use. It may also be used to provide the unyielding holding, in any required position of precisely maintained relationship, of some other tool or device connected to the anchor itself. Such other tools or devices. may be placed at or near, or spaced apart from, one or the other end (or both ends) of the anchor tool itself, and attached thereto. Therefore, when the suchor tool is set in place, it maintains the fixed placement of any device fastened to it beyond either of its ends.
  • this anchor tool may be employed to rigidly and accurately hold any material or machine or structure or. casting which may be engaged or carried by this tool, so that operations (such as lifting, pressuring, cutting, forming, shaping, heating, cooling, and the like) may be car ried out with and upon the structure, material or thing so engaged or carried by this tool.
  • the drawings set out preferred forms of two types of this invention.
  • the type of hydraulic anchor tool which is identified, by the letter A, in the drawings, discloses structure wherein relative rotative motion is not permitted between the anchor barrel and the pipe string or rod or line which carries or supports it.
  • the structure shown as at B, in the drawings presents arrangement whereby a central mandrel, which may be connected to a pipe string so as to become a part thereof, is capable of being rotated in the anchor barrel when the latter is firmly anchored to any surrounding pipe.
  • Fig. I shows a partially sectionalized elevational view of a typical hydraulic anchor tool, with pistons recessed.
  • Fig. II shows a section taken along line II-II of Fig. I.
  • Fig. III shows an exploded perspective view of a typical piston and piston jacket.
  • Fig. IV shows a partially sectionalized elevational fragmentary view of an anchor tool, with pistons extending and engaging the inner wall of surrounding pipe.
  • Fig. V shows a partially sectionalized elevational view of a modified form of piston.
  • Fig. VI shows a partially sectionalized elevational view of another modified form of piston.
  • Fig. VII shows a sectionalized elevational fragmentary view of part of an anchor tool carrying a modified form of piston jacket and a modified form of sleeve or backstop.
  • Fig. VIII shows a partially sectionalized elevational view of a modified form of hydraulic anchor barrel having a rotatable mandrel extending therethrough; and in this view the anchor piston teeth (not shown) must be mounted in the passageways in the wall of the barrel, such view being primarily intended to show an arrangement for allowing relative rotation between a modified barrel and a modified mandrel.
  • Fig. IX is a fragmentary cross sectional elevational view showing modified means for mounting a piston and jacket in the barrel.
  • Fig. X is a fragmentary cross sectional elevational view showing other modified means for mounting a piston and jacket in the barrel.
  • this anchor tool is found in normal production of oil and gas from wells. It may be used in conjunction with an oil well pump, which is attached to the lower part of the tubing string 21 and placed within the casing 22 at a point below normal oil level therein. This tool is used to anchor the tubing to the casing, by being placed above the pump in the tubing string. By making and maintaining such anchor, the objectionable tube breathing or stretching is materially reduced. This results in greater efiiciency in each pump stroke of the pump operations.
  • this hydraulic anchor tool is simple and easy. It has few parts; and every part is quite durable and very effective in function.
  • Fluid pressure is introduced into tubing string 21 and flows into central conduit 18 of the anchor tool, and passes through pressure communicating ports 51 into the enlarged central bore 13 of anchor barrel 11.
  • Such pressure is exerted independently against each of the numerous piston heads 41. This causes the outward movement of each piston body 39, until each individually moved piston tooth 40 is extended outwardly of barrel 11. Such extension will cause biting edge 43 of each tooth to strike and slightly penetrate the wall of casing 22.
  • the tool is firmly anchored to the casing by the engagement of the many piston teeth which are slideably mounted in the wall of the barrel of the tool.
  • Each tooth may be provided with a jacket 31, mounted in passageway 30, the latter being made by drilling a hole through the barrel wall.
  • Jacket 31 is provided with a flange 32, atits inner end, which prevents the ejection of the jacket.
  • the outer end of the jacket is provided with an iii-turned lip which affords retaining shoulder 33 to prevent ejection of the piston by limiting its outward travel.
  • the jacket is provided with a resilient seal ring 37 carried in annular recess 36 made in the outer wall near its forward end.
  • the enlarged piston head 41 is provided with flexible piston ring 43 carried in an annular recess 42, which is provided in the outer wall of the piston head.
  • the jacket 31 provides enlarged guide surface 35 for guiding the piston head, and smaller guide surface 34 for guiding the piston body 39.
  • the outermost surface of body 39 afiords load bearing surface 49 of the piston.
  • the tooth is provided with bevel 45, the forward end of which terminates in biting edge 48.
  • This biting edge may be kept narrow by the provision of concavity 47 arranged in the extreme forward end of the tooth.
  • a cylindrical sleeve 50 carried within the barrel 11 in slightly spaced relation thereto (thus providing annular main pressure conduit 19), constitutes a backstop for all pistons and affords means whereby their inward movement is limited.
  • This hydraulic anchor tool invention presents radical improvements in design, construction and operation, in mold-purpose utility, in general effectiveness, in simplicity and ease of control in setting and releasing, and in rugged strength, over prior art attaching and anchoring devices which have been heretofore operated either by mechanical or hydraulic means.
  • This hydraulic anchor provides a barrel (11 or 88) within which is found a pressure chamber (19 or 84). Radially extending through the wall of the barrel there is arranged a number of singly acting and symmetrically spaced pistons (41 and modifications 59, 65, 76 and 99). Each such piston has an enlarged piston head at its inner end (typical of which is shown as at 41), whereby hydraulic pressure from the pressure chamber may be applied thereagainst with great holding eiiect.
  • the free ends of these pistons are relatively small compared to the greater piston head area; and pressure within the barrel will force the free ends of the pistons to pop out of the barrel. They are made to extend radially in a symmetrical pattern revealing spaced individual teeth.
  • One form of tooth is shown as'at 40. There is a single piston behind each tooth.
  • each tooth is conical or frusto-conical in shape. Only the beveled or conelike end of a tooth projects beyond the outer wall of the barrel of this tool, so that when pressure is released within the barrel the free and smaller and somewhat pointed ends of each piston tooth will immediately retreat entirely into the barrel wall, it it strikes any obstruction, going in or out of the hole. The result thereof is that after pressure is relieved behind the piston heads, no tooth which may remain extended beyond the body wall can hang up in the casing. Instead of hanging up, the teeth are driven back into the barrel upon striking anything in the annulus of the well which would or could cause the old style slips to bind or hang up or become wedged. Therefore, this hydraulic anchor tool will not stick in the hole. The very thing that would cause a conventional slip to get stuck repels this improved piston tooth, immediately obviating the possibility of a hang up. i
  • the pistons of this tool are quickly and inexpensively produced by automatic screw machines. This allows them to be made round, and thus permit their rotation within a round jacket 31, which is' provided for them to slide in.
  • the jacket itself, also being round, is capable of being made at low cost on automatic screw machines. Such possibility for economy in manufacture reduces labor and saves time. This in itself is a valuable advance in the art of producing slip engaging means usable in toothed anchoring devices.
  • the barrel of the tool may be made as long or as short as the requirements of a given job and load to be carried may indicate.
  • the total number of toothed pistons carried by and operated from the barrel may be varied, as needed. For instance, only one horizontal band of pistons may be used, as by employing only the pistons shown in Fig. 11. Fewer pistons may be used in a tool having only one band of pistons than is shown in Fig. 11; and more pistons may be used than shown in such figure.
  • Tools having many bands of pistons may be employed. Tools may be made with no two pistons in the same horizontal band. Tools employing the invention here presented havebeen made carrying anywhere from three to ninety-six pistons.
  • adapter 20 is arranged between barrel cap 15 and end of tubing 21, and these members are provided with suitable connecting means.
  • Bore 14 in the barrel cap has been threaded for connection.
  • any suitable connection means may be employed.
  • the enlarged main pressure conduit 19 begins. This allows the provision of sleeve retaining shoulder 16, to prevent upward movement of sleeve 50.
  • Barrel cap 15 should be provided with beveled outer surface 17; and the lower end of barrel 11 should be beveled as at 25. Such provisions facilitate the introduction and withdrawal of the tool from a pipe.
  • Sub 23 may be employed as a connector between the anchor body and tubing or other pipe, or to connect the anchor body with a packer or other tool.' This sub is threaded at each end, but any suitable connection means may be employed. It is to be noted that sub 23 retains one end of sleeve 50. This sub should be beveled on its outer wall as at 24.
  • Fig. VII shows modified piston jacket 70, mounted in modified passage 25, the outer ends of both members being beveled to form a welding recess 74, which may be sealed with fused metal, as at 75, thus securing this particular type of jacket in the barrel wall so that it is not readily removable therefrom.
  • This jacket is provided with retaining lug and piston guide 72 which affords retaining shoulder 73 to limit the outward movement of piston 76.
  • sleeve 77 may be used, and such sleeve is to be provided with fluid pressure ports 78 therethrough.
  • modified piston packing ring 64 may be employed with any piston head.
  • modified piston tooth 60 may be employed to afiord a tooth having a flat end 61 and a different bevel 62.
  • FIG. V1 Another modified piston 65 is shown in Fig. V1, with a tooth coming to a point, as at 66, and having modified bevel 67.
  • piston teeth Other forms of construction in piston teeth are shown, as the bevel 45, on piston 41, such bevel terminating in a free end having a concavity 47 to provide a circular biting edge, as shown at 48.
  • Central conduit 83 of mandrel 80 is free and unobstructed, and communicates freely with tubing 21.
  • Fluid pressure ports 81 are provided through the wall of mandrel 80 to communicate with main pressure conduit 84 of barrel 88. This latter conduit allows fluid pressure to be exerted upon pistons carried inpassageways 85, which. are arranged through the wall at spaced intervals.
  • An annular recess 86 is provided at each end of barrel 88 to receive a resilient sealing ring 87.
  • Each end of the barrel in this tool should be beveled, as at 89.
  • modified tool B firm anchor may be made of barrel 88 with surrounding casing wall 22, yet the tubing string 21 may be rotated, and the mandrel 80, firmly attached thereto, will rotate in barrel 88.
  • it may be necessary to make rotary movements to lock and unlock the tubing from a packer or other tools; and at the same time it may be very necessary that the anchorage of this tool be understood.
  • Such is easily practiced with the use of hydraulic anchor tool B.
  • '- Figures IX and X show modifications allowing both jacket and piston to be inserted in the Wall of barrel (11 or 88) from the outside of the barrel.
  • Jacketretaining screw 94 is set into the outer face of the wall, in such way as to hold in place modified jacket 91.
  • InFig. X modified and exterior threaded piston jacket 95 is inserted in the wall from the outside, by being placed in modified passage 96, which is provided with threads complementary to those on the jacket.
  • This passage is provided with piston retaining shoulder 97 to limit the inward movement of any piston carried by the jacket.
  • This particular jacket 95 should be provided with wrench holes 98 to receive a wrench for inserting and withdrawing the threaded jacket from the wall.
  • the central conduit (18 or 83) of both anchor tools A & B will allow the passage therethrough of any tool or apparatus which may be passed through the tubing connected with the tool. If it is desired to clean the main pressure conduits 19 or 84, it is only necessary to pass-a swab through the anchor tool. This will cause fluid to circulate back to the sleeve or mandrel and thus clean out all channels in the tool.
  • a plug or cap may be used to close one end of the barrel of this tool. With a pipe connected to the other end of the tool, fluid pressure may be introduced to test the tool, both at the factory and in the field. Such a plug may be employed where it is desired to set this anchor within any cylindrical vessel.
  • a hydraulic anchor tooth comprising: a cylindrical body; an annular shoulder on one end of the body; a beveled tooth portion on the other end of the body, said tooth portion being concave at its outer end.
  • a hydraulic anchor an elongate tubular barrel; a plurality of lateralpassages provided through the wall of the barrel and arranged in spaced relation; a piston jacket slideably mounted in each such passage; a piston slideably carried in each such jacket, said pistons being so constructed as to prevent the flow of fluid therethrough; means to limit the outward movement of the jackets in the passages; sealing means carried about each jacket arranged to seal between the jackets and the passages for preventing fluid from passing through the barrel wall; and a tubular piston stop arranged within the barrel to limitthe rearward movement of each piston.
  • a hydraulic anchor In a hydraulic anchor, an elongate tubular body; a plurality of lateral passages provided through the wall of said body and arranged in spaced relation; a piston jacket slideably mounted in each such lateral passage, each such jacket having an out-turned flange at its inner end engageable with the inner wall of the body to limit outward movement of the jacket in the passage, and each such jacket being open at each end; an in-turned shoulder in each such jacket intermediate the end thereof; a piston slideably carried in each jacket, the inner end of each such piston being provided with an enlarged p ston head engageable with the in-turned shoulder to limit outward movement of the piston in the jacket; and a piston stop carried within the body behind the pistons engageable with the pistons to limit inward movement of the pistons with respect to the body.
  • a hydraulic anchor In a hydraulic anchor, an elongate tubular body; a plurality of lateral passages provided through the wall of the body and arranged in spaced relation; a piston acket slideably and rotatably mounted in each such passage, each such jacket having an in-turned shoulder intermediate its ends; means to limit the inward movement of the jackets relative to the tubular body; means to limit the outward movement of the jackets relative to the tubular body; a piston slideably and rotatably carried in each such jacket, eachsuch piston being provided with an enlarged piston head; and such pistons being so constructed as to prevent the flow of fluid therethrough.
  • a-hydraulic anchor an elongate tubular body; a plurality of lateral passages provided through the wall of said body and arranged in spaced relation; a piston jacket mounted in each such passage, each such jacket having an in-turned shoulder intermediate its ends; a piston slideably carried in each such jacket, the inner end of the piston being provided with a laterally extending flange, engageable with the shoulder to limit outward movement of the piston, and the outer end of the piston being reduced to provide a tapered tooth, having a circular biting edge; each such piston being arranged to tilt in its respective jacket, and each such piston being so constructed as to prevent the flow of fluid therethrough.
  • a hydraulic anchor an elongate tubular barrel; a plurality of lateral passages provided through the wall of said barrel and arranged in spaced relation; a piston jacket mounted in each such passage, the jacket having an in-turned shoulder intermediate its ends; a piston tooth slideably carried in each such jacket, the inner end of the piston tooth having an enlarged piston head provided thereon engageable with the shoulder to limit outward movement of the piston tooth, and the piston tooth being concave at its outer end; each such piston head being smaller in diameter than the inner diameter of its jacket, whereby the teeth may tilt in the jackets; and a resilient seal positioned about the piston head arranged to seal between the piston head and the jacket.
  • a cylindrical tubular barrel having passages through the wall thereof; a tubular jacket mounted in each passage; an internal annular shoulder in each jacket; a cylindrical piston slideably carried in each jacket, the outer end of the piston being beveled to terminate in a tooth of less diameter; an enlarged head on the tooth engageable with the internal shoulder in the jacket to limit the outward movement of each piston; a sleeve carried in said barrel in spaced relationship to the barrel and forming a stop to limit the inward movement of the pistons; and fluid communication passages through the wall of the sleeve.
  • a cylindrical body at least one opening in the wall of said body; a sleeve slideably carried in the opening, said sleeve being open at both ends; means to limit the inward movement of the sleeve relative to the cylindrical body; means to limit the outward movement of the sleeve relative to the cylindrical body; a piston tooth slideably carried in the sleeve; means to limit the outward movement of the piston in the sleeve relative to the cylindrical body; and means to limit the inward movement of the piston in the sleeve relative to the cylindrical body.
  • a cylindrical body at least one opening in the wall of said body; a sleeve slideably carried in the opening, said sleeve being open at both ends; means to limit the inward movement of the sleeve relative to the cylindrical body; means to limit the outward movement of the sleeve relative to the cylindrical body; a piston tooth slideably carried in the sleeve; means to limit the outward movement of the piston in the sleeve relative to the cylindrical body; means to limit the inward movement of the piston in the sleeve relative to the cylindrical body; packing means between the sleeve and the opening; and packing means between the piston and the sleeve.
  • An anchor tooth assembly comprising: a sleeve having an outwardly turned flange providing a shoulder at one end thereof; an annular shoulder turned inwardly of the sleeve; a piston tooth slideably carried in the sleeve; said tooth having a beveled end, and an. annular flange on the other end engageable with the inner shoulder of the sleeve; packing means disposed about the annular flange and arranged to seal between the piston and the sleeve as the piston slides therein; and packing means carried in the outer wall of the sleeve, said last named packing means being arranged to seal between the sleeve and a passage in the wall of a tubular body as the sleeve slides in the passage.
  • a cylindrical tubular mandrel in an anchor tool, a cylindrical tubular mandrel; ports arranged through the mandrel wall intermediate its ends; a cylindrical barrel rotatably carried around the mandrel, said ports being located within the cylindrical barrel; passages provided through the wall of the barrel; packing means between the ends of the barrel and the outer face of the mandrel wall; a cylindrical jacket mounted in each passage, said jacket being open at each end, and having an internal annular shoulder therein; a cylindrical piston slideably carried in each jacket, the outer end of the piston being beveled to terminate in a tooth of less diameter; and an enlarged head on the tooth engageable with the internal shoulder in the jacket to limit the outward movement of each piston.

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  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Piles And Underground Anchors (AREA)
  • Clamps And Clips (AREA)
  • Actuator (AREA)
  • Earth Drilling (AREA)
US306227A 1952-08-25 1952-08-25 Hydraulic anchor tool Expired - Lifetime US2743781A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US306227A US2743781A (en) 1952-08-25 1952-08-25 Hydraulic anchor tool
GB22487/53A GB734154A (en) 1952-08-25 1953-08-14 Improvements in hydraulically operated anchor tools
FR1087045D FR1087045A (fr) 1952-08-25 1953-09-14 Outil d'ancrage à commande hydraulique, notamment pour puits de pétrole et applications analogues
NL181389A NL87905C (en(2012)) 1952-08-25 1953-09-16
CH326074D CH326074A (de) 1952-08-25 1953-09-18 Verankerungseinrichtung, insbesondere für Bohrlöcher
BE523044D BE523044A (en(2012)) 1952-08-25 1953-09-24
DEG12879A DE945321C (de) 1952-08-25 1953-10-21 Hydraulisches Verankerungs- und Haltewerkzeug, insbesondere zur Verwendung in OElbohrungen

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US306227A US2743781A (en) 1952-08-25 1952-08-25 Hydraulic anchor tool
GB22487/53A GB734154A (en) 1952-08-25 1953-08-14 Improvements in hydraulically operated anchor tools
FR1087045T 1953-09-14
NL181389A NL87905C (en(2012)) 1952-08-25 1953-09-16
CH326074T 1953-09-18
BE523044T 1953-09-24
DEG12879A DE945321C (de) 1952-08-25 1953-10-21 Hydraulisches Verankerungs- und Haltewerkzeug, insbesondere zur Verwendung in OElbohrungen

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US2743781A true US2743781A (en) 1956-05-01

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US306227A Expired - Lifetime US2743781A (en) 1952-08-25 1952-08-25 Hydraulic anchor tool

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US (1) US2743781A (en(2012))
BE (1) BE523044A (en(2012))
CH (1) CH326074A (en(2012))
DE (1) DE945321C (en(2012))
FR (1) FR1087045A (en(2012))
GB (1) GB734154A (en(2012))
NL (1) NL87905C (en(2012))

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US3105561A (en) * 1960-09-13 1963-10-01 Jersey Prod Res Co Hydraulic actuated drill collar
US3130786A (en) * 1960-06-03 1964-04-28 Western Co Of North America Perforating apparatus
US3199599A (en) * 1962-08-20 1965-08-10 Bakers Oil Tools Inc Scrapers for tubular strings
US3411810A (en) * 1966-10-14 1968-11-19 Schlumberger Technology Corp Apparatus for preventing accidental disconnection of pressure sources from well tools
US4138148A (en) * 1977-04-25 1979-02-06 Standard Oil Company (Indiana) Split-ring riser latch
US4856591A (en) * 1988-03-23 1989-08-15 Baker Hughes Incorporated Method and apparatus for completing a non-vertical portion of a subterranean well bore
US5131468A (en) * 1991-04-12 1992-07-21 Otis Engineering Corporation Packer slips for CRA completion
US5165478A (en) * 1991-09-16 1992-11-24 Conoco Inc. Downhole activated process and apparatus for providing cathodic protection for a pipe in a wellbore
US5220959A (en) * 1991-09-24 1993-06-22 The Gates Rubber Company Gripping inflatable packer
US5224556A (en) * 1991-09-16 1993-07-06 Conoco Inc. Downhole activated process and apparatus for deep perforation of the formation in a wellbore
US5228518A (en) * 1991-09-16 1993-07-20 Conoco Inc. Downhole activated process and apparatus for centralizing pipe in a wellbore
US5346016A (en) * 1991-09-16 1994-09-13 Conoco Inc. Apparatus and method for centralizing pipe in a wellbore
US20040055788A1 (en) * 2001-01-10 2004-03-25 Bruno Best Device for anchoring a drill string in a borehole
WO2008128542A2 (en) 2007-04-24 2008-10-30 Welltec A/S Anchor tool
US20090242214A1 (en) * 2008-03-25 2009-10-01 Foster Anthony P Wellbore anchor and isolation system
US20100155083A1 (en) * 2008-12-18 2010-06-24 Baker Hughes Incorporated Open-hole anchor for whipstock system
US20100193192A1 (en) * 2009-02-04 2010-08-05 Buckman Jet Drilling Perforating and Jet Drilling Method and Apparatus
US20130206392A1 (en) * 2011-08-08 2013-08-15 Scott Sherman Fracturing Tool Anchor
US20140112722A1 (en) * 2012-10-18 2014-04-24 P3 Infrastructure Consulting Inc. Apparatus and system for securing a hollow pile in the ground
US8839874B2 (en) 2012-05-15 2014-09-23 Baker Hughes Incorporated Packing element backup system
US8905149B2 (en) 2011-06-08 2014-12-09 Baker Hughes Incorporated Expandable seal with conforming ribs
US8955606B2 (en) 2011-06-03 2015-02-17 Baker Hughes Incorporated Sealing devices for sealing inner wall surfaces of a wellbore and methods of installing same in a wellbore
FR3018541A1 (fr) * 2014-03-17 2015-09-18 Pcm Ancre de couple de blocage en rotation d'une colonne de production d'un puits, systeme de pompage et de blocage en rotation et installation de pompage equipee d'une telle ancre de couple
US9243490B2 (en) 2012-12-19 2016-01-26 Baker Hughes Incorporated Electronically set and retrievable isolation devices for wellbores and methods thereof
US9249632B2 (en) 2013-12-04 2016-02-02 Halliburton Energy Services, Inc. Vibration damper
WO2016160186A1 (en) * 2015-03-30 2016-10-06 Schlumberger Technology Corporation System and method for facilitating use of an electric submersible pumping system
US10125976B2 (en) 2013-12-20 2018-11-13 Westinghouse Electric Company Llc Steam generator sludge lance apparatus
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US8196680B2 (en) 2009-02-04 2012-06-12 Buckman Jet Drilling Perforating and jet drilling method and apparatus
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WO2016160186A1 (en) * 2015-03-30 2016-10-06 Schlumberger Technology Corporation System and method for facilitating use of an electric submersible pumping system
CN108868674A (zh) * 2017-05-16 2018-11-23 中国石油化工股份有限公司 负压解卡防垢水力锚
EP3762170A4 (en) * 2018-03-06 2021-11-24 Leon Trudeau INTERIOR FLORAL CUTTERS
WO2019173096A1 (en) 2018-03-06 2019-09-12 Leon Trudeau Internal pile cutter
US11571756B2 (en) 2018-03-06 2023-02-07 Leon Trudeau Internal pile cutter
US11833596B2 (en) 2018-03-06 2023-12-05 Leon Trudeau Internal pile cutter
US11098544B2 (en) * 2018-12-06 2021-08-24 Welltec A/S Downhole tool with long projecting extension
US12352127B2 (en) 2020-01-17 2025-07-08 Halliburton Energy Services, Inc. Voltage to accelerate/decelerate expandable metal
US12345115B2 (en) 2020-01-17 2025-07-01 Halliburton Energy Services, Inc. Heaters to accelerate setting of expandable metal
US11692416B2 (en) * 2020-02-21 2023-07-04 Schlumberger Technology Corporation Wear resistant downhole piston
US12338705B2 (en) 2020-08-13 2025-06-24 Halliburton Energy Services, Inc. Expandable metal displacement plug
US12345116B2 (en) 2021-04-12 2025-07-01 Halliburton Energy Services, Inc. Expandable metal as backup for elastomeric elements
US20220372836A1 (en) * 2021-05-21 2022-11-24 Halliburton Energy Services, Inc. Wellbore anchor including one or more activation chambers
US12326060B2 (en) * 2021-05-21 2025-06-10 Halliburton Energy Services, Inc. Wellbore anchor including one or more activation chambers
US12345117B2 (en) 2021-05-28 2025-07-01 Halliburton Energy Services, Inc. Individual separate chunks of expandable metal
US12345119B2 (en) 2021-05-28 2025-07-01 Halliburton Energy Services, Inc. Rapid setting expandable metal
US12258723B2 (en) 2021-06-01 2025-03-25 Halliburton Energy Services, Inc. Expanding metal used in forming support structures
CN115680530A (zh) * 2021-07-21 2023-02-03 中国石油天然气股份有限公司 一种预应力完井地锚
CN113445949A (zh) * 2021-07-21 2021-09-28 广州海洋地质调查局 一种液力传导式高效挡砂水力锚机构
US12378832B2 (en) 2021-10-05 2025-08-05 Halliburton Energy Services, Inc. Expandable metal sealing/anchoring tool
US12305459B2 (en) 2022-06-15 2025-05-20 Halliburton Energy Services, Inc. Sealing/anchoring tool employing an expandable metal circlet
US12258828B2 (en) 2022-06-15 2025-03-25 Halliburton Energy Services, Inc. Sealing/anchoring tool employing a hydraulically deformable member and an expandable metal circlet
US12385340B2 (en) 2022-12-05 2025-08-12 Halliburton Energy Services, Inc. Reduced backlash sealing/anchoring assembly

Also Published As

Publication number Publication date
CH326074A (de) 1957-12-15
NL87905C (en(2012)) 1958-04-15
DE945321C (de) 1956-07-05
FR1087045A (fr) 1955-02-18
GB734154A (en) 1955-07-27
BE523044A (en(2012)) 1953-10-15

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