Guide For Device Or Conduit Patents (Class 166/241.1)
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Publication number: 20120230151Abstract: Methods of generating radial survey images of a borehole and methods of orienting downhole operational tools are disclosed. The disclosed techniques are used to generate a radial survey of the borehole in the form of one or more rose-plots and/or a radial image of the borehole and surrounding area that can be used to properly orient downhole operational tools in the desired direction. The tool string includes, from the top to bottom, a telemetry module, a non-rotating centralizer, a motor module, an imaging sonde used to survey the borehole, a rotating centralizer and a downhole operational tool. The motor module can be used to rotate the imaging sonde to generate the radial survey and then rotate the downhole operational tool to the desired direction based upon a review of the radial survey.Type: ApplicationFiled: May 22, 2012Publication date: September 13, 2012Inventor: James S. Almaguer
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Publication number: 20120193089Abstract: A coupling assembly is disclosed for connecting and centralizing a first threaded-end member and a second threaded-end member, the coupling assembly comprising: a mandrel having a rotor receiving surface bounded by a first stop and a second stop, the mandrel having a first threaded pin at a first end for connection to a first threaded box coupling for the first threaded-end member, and a second threaded pin at a second end for connection to a second threaded box coupling for the second threaded-end member; each of the first stop and the second stop having respective outer diameters and the respective outer diameters being less than or equal to the respective outer diameters of the first threaded box coupling and the second respective box coupling; and a rotor with raised fins mounted on the rotor receiving surface between the first stop and the second stop.Type: ApplicationFiled: September 30, 2011Publication date: August 2, 2012Applicant: PLAINSMAN MANUFACTURING INC.Inventors: Leroy A. Makelki, Mark A. Lea-Wilson, Damon B. Larson
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Patent number: 8225864Abstract: Centralizer includes a body formed of a first material and an outer shell formed of a second material. The outer shell is installed to resist destructive damage and longitudinal creep of the portion formed of the first material. The outer shell covers the entire exterior surface of the body, including ribs that protrude from the exterior surface. The outer shell material is more durable than the material of the body. The outer shell material may be steel and the body material may be a polymer. The ribs and exterior surface of the body bond to the outer shell. The centralizers fit on well pipes to centralize them within boreholes.Type: GrantFiled: December 20, 2007Date of Patent: July 24, 2012Assignee: Tesco CorporationInventor: Per G. Angman
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Publication number: 20120175131Abstract: An apparatus and methods of spacing a tool from walls of tubing are provided as embodiments of the present invention. The apparatus can include a centralizer that is inserted in the tubing, the centralizer having inwardly arched sides or inwardly arched bow springs so that an inner diameter of the centralizer increases from a longitudinal midpoint to a longitudinal end point of the centralizer. The centralizer has a smaller diameter than the tubing so that it can be positioned inside of the tubing downstream of a seating ring in a relaxed position so that when the tool passes through the centralizer, the inwardly arched sides or inverted bow springs expand towards an inner wall of the tubing to centralize and inhibit radial movement of the tool when deployed through the inwardly arched sides of the centralizer.Type: ApplicationFiled: January 7, 2011Publication date: July 12, 2012Applicant: Baker Hughes IncorporatedInventors: Nicholas D. Johnson, David L. Olson
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Publication number: 20120168176Abstract: A downhole tool for positioning in a wellbore comprises a tool main body, an electric motor disposed within the tool main body, the motor comprising a rotor rotatably attached to a stator, and a linear actuator assembly disposed within the motor for transforming a rotary output of the motor into a linear displacement.Type: ApplicationFiled: June 22, 2010Publication date: July 5, 2012Inventors: Franz Aguirre, Wade D. Dupree, Mark Holly, Derek Copold
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Publication number: 20120168181Abstract: A conformable inflow control device includes a first tubular having a plurality of perforations therethrough, a second tubular positioned radially of the first tubular defining an annular space therebetween having at least one port therethrough, and a pressure drop device disposed at the annular space positioned between the plurality of perforations and the at least one port configured to create a drop in pressure in response to fluid flow therethrough. Also included is an expandable media disposed radially outwardly of the first tubular configured to expand while permitting fluid flow therethrough.Type: ApplicationFiled: December 29, 2010Publication date: July 5, 2012Applicant: BAKER HUGHES INCORPORATEDInventor: Daniel Newton
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Patent number: 8196670Abstract: A stop collar or like device is formed in one piece to have a portion for a tool to be attached. Movement of the tool allows the collar to be drawn tightly into engagement onto a pipe or other tubular member. A bow centraliser has alternate bows longitudinally offset to reduce initial insertion force. The centraliser may be formed to have end bands of the type used in the stop collar.Type: GrantFiled: February 22, 2010Date of Patent: June 12, 2012Assignee: Domain Licences LimitedInventor: Andrew Jenner
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Patent number: 8191640Abstract: A pump seating nipple is provided for engagement with a downhole pump in order to seal and anchor the downhole pump relative to the pump seating nipple. The pump seating nipple includes a nipple sealing component for coupling with the downhole pump to provide a seal device, a nipple axial force anchoring component for coupling with the downhole pump to provide an axial force anchor device, and a nipple rotational force anchoring component for coupling with the downhole pump to provide a rotational force anchor device.Type: GrantFiled: June 8, 2009Date of Patent: June 5, 2012Assignee: Smith International, Inc.Inventors: Paul McCreedy, Ray Neudorf
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Publication number: 20120111640Abstract: A downhole stabiliser (5), such as a drill motor stabiliser, comprises at least one reaming means and/or reinforcing means (10). The present invention also relates to an assembly (30), such as a downhole drilling assembly (31), comprising at least one such stabiliser (5) and/or a drill bit (40,41) comprising a gauge bit (42) at or near a drilling end (45) thereof, and a connection means (46) for connecting the drill bit (40,41) to a drill motor assembly (60), wherein the drill bit gauge (42) comprises a substantially cylindrical portion having a length less than or equal to approximately 1.0 times the nominal bit diameter. The present invention also relates to a novel locking mechanism (80), such as a lock and key mechanism, to allow locking of a shaft (70?), e.g. a motor drive shaft (71?), through or together with a stabiliser (5?).Type: ApplicationFiled: March 19, 2010Publication date: May 10, 2012Applicant: HALLIBURTON ENERGY SERVICES, INC.Inventors: Andrew McPherson Downie, Pascal Michel Vitale, Bachar Boussi
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Publication number: 20120103597Abstract: An outer wellhead member has a bore with a first profile portion and an annular recess. A tubular inner wellhead member with a centralizer/overpull ring is lowered into the outer wellhead member. The centralizer/overpull ring is biased to expand outward to engage the bore of the outer wellhead member to center the inner wellhead member within the bore as the inner wellhead member is lowered through the bore. The recess of the outer wellhead member is adapted to receive the centralizer/overpull ring and oppose axial movement of the centralizer/overpull ring to enable an upward test pull of the inner wellhead member.Type: ApplicationFiled: October 27, 2010Publication date: May 3, 2012Applicant: Vetco Gray Inc.Inventors: Sibu Varghese, Ryan Herbel, Dien Nguyen, Javier Garcia
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Publication number: 20120097398Abstract: A wellbore completion is disclosed. The wellbore completion comprises a casing assembly comprising a plurality of casing lengths. At least one collar is positioned so as to couple the casing lengths. The at least one collar comprises a tubular body having an inner flow path and at least one fracture port configured to provide fluid communication between an outer surface of the collar and the inner flow path. A length of coiled tubing can be positioned in the casing assembly. The coiled tubing comprises an inner flow path, wherein an annulus is formed between the coiled tubing and the casing assembly. A bottom hole assembly is coupled to the coiled tubing. The bottom hole assembly comprises a fracturing aperture configured to provide fluid communication between the inner flow path of the coiled tubing and the annulus. A packer can be positioned to allow contact with the at least one collar when the packer is expanded.Type: ApplicationFiled: August 29, 2011Publication date: April 26, 2012Inventors: John Edward Ravensbergen, Lyle Erwin Laun, John G. Misselbrook
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Publication number: 20120080184Abstract: The apparatus for evaluating a wellbore while drilling includes a logging toolheld on a drill string and is adapted to obtain data from the wellbore while moving the drill string including the logging tool uphole and out of the wellbore. The logging tool includes a memory for storing obtained data and an on-board power supply battery. A computer being positioned at a surface level of the wellbore is adapted to obtain the data from the memory when the logging tool is also positioned at the surface level. The logging tool is adapted to perform a minimum power-consuming sleep mode with a data obtaining and storing function being disabled and the computer is adapted to transmit a wake-up signal downhole to enable the data obtaining and storing function of the logging tool just prior to tripping out the drill string from the wellbore. The wake-up signal preferably is a mud pulse signal sent through the drilling fluid used when drilling the wellbore.Type: ApplicationFiled: April 2, 2009Publication date: April 5, 2012Applicant: STATOIL ASAInventors: Mohammad Jahangir, Tore Weltzin
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Publication number: 20120073802Abstract: A complex tool according to the invention comprises a cylindrical housing, a lever centralizer aligning the tool along the well axis and having at least six levers and a fluid flow temperature sensor and inflow temperature indicator located on the tool axis. A fluid phase composition sensors are located on the centralizer levers and distributed along the well bore circumference. An additional fluid phase composition sensor is located on the tool axis. At least one additional fluid flow temperature sensor and at least one additional inflow temperature indicator disposed on each lever and distributed along the well bore circumference and located on the same line with the phase composition sensors parallel to the tool axis. There is an additional upper lever centralizer in the tail part.Type: ApplicationFiled: August 22, 2011Publication date: March 29, 2012Applicant: Schlumberger Technology CorporationInventors: Valery Vasilievich Shako, Anton Vladimirovich Parshin, Rashid Kamilevich Yarullin, Rim Abdullovich Valiullin
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Publication number: 20120073803Abstract: The present invention relates to an apparatus for use in a wellbore, which comprises two rotating bodies 1, 11 and a ring 4. The said rotating bodies rotate clockwise or anticlockwise on its own axis. Preferably, the present invention provides a dual rotary centralizer with a unique dual rotating design with an advantage of an integral stop. This combination enables a free rotation on the axis of the casing pipe which allows easy casing rotation while the dual rotary centralizer stays in its position onto the casing pipe eliminating altogether the need for stop collars. The clockwise and anticlockwise rotation of two bodies induces extra swirl action.Type: ApplicationFiled: June 8, 2009Publication date: March 29, 2012Inventor: Shantanu Dalmia
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Patent number: 8141629Abstract: Centralizers including at least a portion formed of a first material and at least one end band secured to the first material and formed of a second material. The end band being installed to resist detachment from the portion formed of the first material.Type: GrantFiled: May 31, 2007Date of Patent: March 27, 2012Assignee: Tesco CorporationInventor: Per G. Angman
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Publication number: 20120061098Abstract: A downhole device for use in a deviated well is described. The downhole device comprises a device body having a longitudinal axis, the device body adapted to be connected to the end of a tool string and a guide member. At least a portion of the guide member is moveable with respect to the device body, one of said moveable portions defining the leading end of the device.Type: ApplicationFiled: March 15, 2010Publication date: March 15, 2012Applicant: WIRELINE ENGINEERING LIMITEDInventor: Neil Robert Hall
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Publication number: 20120006533Abstract: A tubular centralizer is secured to the tubular for run in. The profile for run in is small so that damage to the centralizer is minimized during run in. When the string is in position the centralizer is actuated to change shape or volume to engage the surrounding borehole to centralize the tubular for subsequent operations such as cementing or in the case of screens for gravel packing. The centralizer can be a shape memory material that is initially compressed at above its transition temperature to hold the smaller shape. At the desired location after run in it is brought above the transition temperature and changes back to the original shape or volume to centralize the tubular string. The structure can be spaced ring segments or a cohesive ring structure with an undulating profile or radiating blades to create flow spaces in the annulus where it is deployed for flow of a sealing material or gravel, for example.Type: ApplicationFiled: July 7, 2010Publication date: January 12, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Jason J. Barnard, Donald N. Horner, Michael H. Johnson
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Publication number: 20120006566Abstract: A fiber support arrangement for a downhole tool includes at least one tubular and at least one bracket positioning the at least one tubular spaced radially from a downhole tool and lacking contact therewith. At least two fibers are supported at the at least one tubular with at least two of the at least two fibers having a different helical angle from one another relative to an axis of the downhole tool.Type: ApplicationFiled: July 6, 2010Publication date: January 12, 2012Applicant: BAKER HUGHES INCORPORATEDInventors: Denise M. Earles, Carl W. Stoesz
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Patent number: 8082987Abstract: A downhole tool includes a pressure housing deployed in the bore of a drill collar. At least three fins are deployed on the housing and in the tool annulus. At least one of the fins includes a floating blade deployed thereon. The blade includes a plurality of radial pistons deployed therein. The pistons are configured such that the surface area of the radially outward facing piston surfaces is greater than the surface area of the radially inward facing piston surfaces. This piston configuration causes the surface area of the radially outward facing blade surface to be less than the radially inward facing blade surface. In operation, hydrostatic pressure exerts a differential force on the pistons and the floating blade thereby urging the pistons radially inward towards the housing and the blade radially outward towards the drill collar.Type: GrantFiled: July 1, 2009Date of Patent: December 27, 2011Assignee: Smith International, Inc.Inventor: Dennis Patrick Chesnutt
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Publication number: 20110308797Abstract: A system for positioning a downhole tool along a pipe string, the system having a series of seating subs inserted along the length of the pipe string wherein each seating sub has a seating aperture disposed around its internal periphery so as to form a bore plug seat of smaller diameter than the diameter of the pipe. The seating apertures are given distinctive diameters that are consecutively arranged along the pipe string length so that the aperture diameters decrease with increasing depth. A drop assembly having an aperture plugging diameter selected to pressure seal a selected aperture includes a bore pressure activated by-pass valve and firing head.Type: ApplicationFiled: July 19, 2011Publication date: December 22, 2011Inventors: Don Umphries, Gabe Williger
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Patent number: 8074712Abstract: A stop collar assembly used for axially securing and/or to resist axial sliding of a downhole tool device. The assembly provided on a housing of the downhole tool and includes a generally annular ring having an inner circumference beveled outward proximate to the ring edge. A clamp ring having a raised portion on its outer surface is disposed adjacent and substantially coaxial with the annular ring. Pushing the annular ring against the clamp ring compresses the clamp ring onto the housing to resist axial sliding of the annular ring.Type: GrantFiled: April 14, 2009Date of Patent: December 13, 2011Assignee: Baker Hughes IncorporatedInventors: Shawn A. Olsen, Roger R. Steinsiek, James C. Hunziker
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Publication number: 20110290474Abstract: The invention relates to a centralizing tool, and to a method of forming a centralizing tool. A disclosed method of assembling a wellbore centralizer includes the step of providing a plurality of centralizing members, each centralizing member being of unitary construction and having a first circumferential part, a second circumferential part, and a longitudinal part disposed between the first and second circumferential parts. A first collar is formed by welding the first circumferential parts into a ring. A second collar is formed by welding the second circumferential parts into a ring.Type: ApplicationFiled: November 23, 2009Publication date: December 1, 2011Inventor: Brian Nutley
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Patent number: 8066066Abstract: A centraliser segment (11) comprising a first collar portion(15), a second collar portion (17) and bow element (19) extending between said first collar portion and said second collar portion to maintain the collar portions in spaced relation to each other, said bow portions having an intermediate portion which lies to one side of the plane accommodating the collar portions, a first connector element (21) provided at one end of the collar portions and second connector element (23) provided at the other end of the collar portions, said first connector elements are engagable with said second connector elements of the same or another centraliser segment such that one or more said centraliser segments are connectable together to form a centraliser which in use is capable of being received around a borehole casing, said first and second connector element having an adjustment element which can cause the diameter of the centraliser can be varied by operation of the adjustment element (41) wherein the adjustment is coType: GrantFiled: January 14, 2011Date of Patent: November 29, 2011Assignee: Kwik-Zip Pty LtdInventor: Jason Linaker
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Patent number: 8011429Abstract: A transport assembly configured to be attached to downhole apparatus has a support assembly configured to be attached to the downhole apparatus and a ground engaging assembly, which may be a roller wheel configured to contact with and move in relation to a surface of a wellbore. The roller wheel may engage with the support assembly so as to provide for their relative rotation. The transport assembly also includes a retaining member disposed between the roller wheel and the support assembly, and the retaining member is operable to resist separation of the roller wheel from the support assembly. The transport assembly is further configured such that, when the transport assembly is in use moving along a wellbore, the roller wheel bears against the retaining member, which in turn bears against the support assembly. The retaining member is a ball-bearing.Type: GrantFiled: June 27, 2008Date of Patent: September 6, 2011Inventor: Graeme McNay
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Publication number: 20110127046Abstract: A tractor configured for grip locking during advancement to avoid slippage, particularly in open-hole wells. The tractor is equipped with a grip lock mechanism for independently locking an anchor grip in a radially outward direction. This locking occurs sequentially in advance of the power stroke of a reciprocating drive piston associated with the anchor. Thus, radial outward expansion and gripping are ensured at the time pulling of a load in an axial downhole direction is pursued. Such grip locking may be employed throughout tractoring or intermittently, depending upon well characteristics such as formation hardness and well diameter.Type: ApplicationFiled: December 1, 2009Publication date: June 2, 2011Inventors: Franz Aguirre, Wade D. Dupree, Mark Holly, Derek Copold
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Patent number: 7946350Abstract: A technique is provided for utilizing optical fiber in a well environment. A well system is combined with a tube-in-tube system designed to protect one or more internal optical fibers. The tube-in-tube system has an entry at one end and a turn around at an opposite end to enable fluid flow between a flow passage within an inner tube and a flow passage within an annulus between the inner tube and a surrounding outer tube. An optical fiber is deployed in and protected by the tube-in-tube system.Type: GrantFiled: June 10, 2008Date of Patent: May 24, 2011Assignee: Schlumberger Technology CorporationInventor: Robert Greenaway
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Publication number: 20110114338Abstract: A non-rotating downhole sleeve adapted for casing centralization in a borehole. The sleeve includes a tubular body made of hard plastic with integrally formed helical blades positioned around its outer surface and an inner surface which allows drilling fluid to circulate to form a non-rotating fluid bearing between the sleeve and the casing. The tubular sleeve comprises a continuous non-hinged wall structure for surrounding the casing. The non-rotating centralizer sleeve reduces sliding and rotating torque at the surface while drilling the casing, for example, with minimal obstruction to drilling fluid passing between the casing and the surrounding borehole.Type: ApplicationFiled: October 26, 2010Publication date: May 19, 2011Inventors: Garrett C. Casassa, Sarah B. Mitchell, Norman Bruce Moore
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Publication number: 20110114307Abstract: A non-rotating downhole sleeve adapted for open hole drilling and/or casing centralization. The sleeve includes a tubular body made of hard plastic with integrally formed helical blades positioned around its outer surface and an inner surface configuration which allows drilling fluid circulation to form a non-rotating fluid bearing between the sleeve and the drill pipe or casing. The helical blades reduce sliding and rotating torque while drilling, with minimal obstruction to drilling fluid passing through the borehole between the blades. In one embodiment, improvements are provided during casing exit when drilling in open hole environments. In another embodiment, improvements are provided in the sleeve's resistance to compressive loading.Type: ApplicationFiled: October 26, 2010Publication date: May 19, 2011Inventors: Garrett C. Casassa, Sarah B. Mitchell, Norman Bruce Moore
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Publication number: 20110061864Abstract: A system for positioning a wireless pipe recovery tool in a wellbore, the system having a series of locator pipe subs inserted along the length of a pipe string in a wellbore, wherein each locator pipe sub has a seat disposed around its internal periphery so as to form an aperture of s smaller diameter than the diameter of the pipe sub. The pipe subs have apertures of varied diameter and are consecutively arranged along the pipe string so that the aperture diameters decrease with increasing depth. A locator housing selected from a plurality of locator housings of varied outer diameter is attached to the wireless pipe recovery tool, the outer diameter of the locator housing selected to be slightly larger than the aperture in which the tool is intended to seat.Type: ApplicationFiled: October 15, 2009Publication date: March 17, 2011Inventors: Don Umphries, Gabe Williger
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Publication number: 20110042106Abstract: A centraliser (10) for centralising a tubular in a conduit is described. The centraliser comprises a body comprising a upper body portion (12) and a lower body portion (14) and a plurality of arms (16) linking the upper body portion to the lower body portion. Relative movement of the upper and lower body portions towards each other causes the arms to buckle radially outwards into a set configuration in which the arms are engaged, in use, with a conduit.Type: ApplicationFiled: November 28, 2008Publication date: February 24, 2011Applicant: PETROWELL LTD.Inventor: Iain MacLeod
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Publication number: 20110030973Abstract: A stop collar or like device is formed in one piece to have a portion for a tool to be attached. Movement of the tool allows the collar to be drawn tightly into engagement onto a pipe or other tubular member. A bow centraliser has alternate bows longitudinally offset to reduce initial insertion force. The centraliser may be formed to have end bands of the type used in the stop collar.Type: ApplicationFiled: February 22, 2010Publication date: February 10, 2011Inventor: Andrew Jenner
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Patent number: 7878273Abstract: A drilling stabilizer having a body and a plurality of blades integrally cast from tungsten carbide particles bound together with a heated metal binder, for use in drilling oil and gas wells, has a first box end and a second pin end at the distal end of the stabilizer. A plurality a PDC cutters are mounted on the top end of the stabilizer to allow the stabilizer to be used as a reamer when pulling the stabilizer out of the borehole. A steel tube is formed within the interior of the stabilizer in the molding process and which allows the pin end to have steel threads and the box end to also have steel threads to facilitate the makeup of the stabilizer with either the steel threads of a drill bit or the steel threads of joints of drill pipe.Type: GrantFiled: November 17, 2008Date of Patent: February 1, 2011Assignee: Omni IP Ltd.Inventors: David Wilde, James Shamburger
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Publication number: 20110005776Abstract: A centraliser (10) for centralising a tubular (12) within a conduit is described. The centraliser comprises a centraliser body, at least one finger (14) pivotally mounted to the body and at least one collar (20), the/each collar being moveable with respect to the at least one finger. Relative movement between the/each collar and the body pivots the at least one finger from a run-in configuration to an extended configuration.Type: ApplicationFiled: March 18, 2009Publication date: January 13, 2011Applicant: PETROWELL LIMITEDInventor: Steve REID
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Patent number: 7866384Abstract: The invention relates to a downhole device for incorporation into a downhole string and movement in a wellbore. The device comprises a body member, at least one roller arranged on the device to engage the inner surface of the wellbore and means to orient the device in the wellbore. The means to orient the device are provided on the or each roller. Preferably the means to orient the device comprise a projecting portion provided on the or each roller which projects radially outwardly from the body member. The projecting portion can be an eccentrically-shaped portion of the or each roller.Type: GrantFiled: August 11, 2005Date of Patent: January 11, 2011Assignee: Wireline Engineering LimitedInventor: Robert Neil Hall
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Publication number: 20110000665Abstract: A downhole tool includes a pressure housing deployed in the bore of a drill collar. At least three fins are deployed on the housing and in the tool annulus. At least one of the fins includes a floating blade deployed thereon. The blade includes a plurality of radial pistons deployed therein. The pistons are configured such that the surface area of the radially outward facing piston surfaces is greater than the surface area of the radially inward facing piston surfaces. This piston configuration causes the surface area of the radially outward facing blade surface to be less than the radially inward facing blade surface. In operation, hydrostatic pressure exerts a differential force on the pistons and the floating blade thereby urging the pistons radially inward towards the housing and the blade radially outward towards the drill collar.Type: ApplicationFiled: July 1, 2009Publication date: January 6, 2011Applicant: SMITH INTERNATIONAL, INC.Inventor: Dennis Patrick Chesnutt
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Patent number: 7854259Abstract: A rod guide is provided for use in a rotating rod string (12) for powering a progressive cavity pump (14) for pumping downhole fluids through tubing (16) to the surface. The rod guide includes a rotor sleeve (20) secured to the rod string. The rotor sleeve includes a plurality of axially spaced reduced diameter body portions 22, and a plurality of axially spaced enlarged diameter ridge portions 24. Upper and lower stop surfaces 26, 28 on the ridge portions permit axial movement of the stator sleeve with respect to the rotor sleeve. A stator sleeve (40) positioned over the rotor sleeve, and has a sleeve body (42) with a generally circular configuration with opposing circumferential ends (44, 46) spreadable to position the stator sleeve about the rotor sleeve. A plurality of ribs (48) extend outward from the stator sleeve body.Type: GrantFiled: January 17, 2008Date of Patent: December 21, 2010Assignee: Robbins & Myers Energy Systems L.P.Inventor: Matthew S. Davison
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Patent number: 7845434Abstract: A stabilizer assembly is at least 12? long and preferably at least 14? long and is used to drill a straight bore hole in the earth. A central passage through the assembly closely follows a centerline as may be determined by measuring the wall thickness of the tube at a variety of locations in a single plane. At least three stabilizing sections are integral with the tube and include alternating ribs and flutes. Hardbanding on the ribs is ground down to tolerances with a grinding machine or face plate lathe having centers sufficient to receive the 12? long stabilizer assembly.Type: GrantFiled: March 16, 2005Date of Patent: December 7, 2010Assignee: Troy Lee ClaytonInventor: Charley H. Clayton
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Publication number: 20100288489Abstract: The invention relates to a sequence valve for use in a hydraulic plant, which sequence valve has a pressure-controlled slide valve (5) with a spring return and in a starting position defines a first cavity (10), which cavity is connected with a tank and the hydraulic plant, and in a second, pressurised position closes off the connection with the tank. The cavity is connected to a second cavity (18) via a channel (15, 16, 17) in the slide valve, and the second cavity is adapted to be connected with a pump via a throttle (20) and is positioned on the same side of the slide valve as the spring (7). The sequence valve has a third cavity (19), which is adapted to be connected with the pump and is positioned on the opposite side of the slide valve from the spring, and the second and the third cavity are connected with each other via a fixed throttle with a short flow channel. The invention also relates to downhole tractor with the sequence valve.Type: ApplicationFiled: January 14, 2009Publication date: November 18, 2010Inventor: Jorgen HallundbÆk
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Publication number: 20100276138Abstract: A centralizer for a downhole system, such as but not limited to a casing system. In some embodiments, the centralizer has a tubular body and a plurality of roller ball assemblies circumferentially spaced about the tubular body. Each roller ball assembly includes a plurality of rotatable balls adapted to engage a surface radially offset from the centralizer and rotate relative to the surface in any direction.Type: ApplicationFiled: April 29, 2010Publication date: November 4, 2010Applicant: FLOTEK INDUSTRIES, INC.Inventors: Robert H. Wittman, Gregory Keller
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Publication number: 20100276158Abstract: A downhole rotary diverter assembly includes multiple passages for selectively aligning with multiple boreholes. The diverter assembly can be selectively actuated to direct a tool or tubing through-passage toward a desired borehole. The primary tool through-passage of the diverter assembly can be alternately and continually aligned and re-aligned with a desired borehole out of multiple boreholes, while the diverter assembly remains in the well. After a single trip into the well, and placement of the diverter assembly in a well junction, the diverter assembly can be actuated to rotate flow passages into alignment with multiple boreholes. An actuation tool may be lowered into the diverter assembly and manipulated to activate a mandrel. The mandrel is guided by an indexing mechanism to rotatably cycle through discrete and predetermined alignment positions that correspond generally with the stop positions of a guide pin in a guide slot of the indexing mechanism.Type: ApplicationFiled: April 30, 2010Publication date: November 4, 2010Applicant: SMITH INTERNATIONAL, INC.Inventor: Derek Ingraham
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Publication number: 20100263856Abstract: A bottom hole assembly is run into the wellbore on slickline with a tractor to assist in movement of the bottom hole assembly through a deviation in either direction. The tractor can have retractable drive components and can be responsive to tension in the slickline to turn it on and to avoid overrunning the slickline if driving out.Type: ApplicationFiled: April 17, 2009Publication date: October 21, 2010Inventors: Gerald D. Lynde, Graeme J. Walker
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Patent number: 7802622Abstract: A technique protectively arranges at least one cable on the outside of and along at least one pipe section of a pipe string. The cable is secured to at least one cable protector coupled to the outside of at least one pipe section of the pipe string. The cable protector comprises a cable-retaining strip. The cable-retaining strip is provided with at least one continuous cable track arranged along the cable-retaining strip, the cable track opening outwards relative to the pipe section. The at least one cable is also secured to the at least one cable track, whereby the cable is protected from the external environment.Type: GrantFiled: December 27, 2005Date of Patent: September 28, 2010Assignee: Reslink ASInventor: Kjartan Roaldsnes
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Patent number: 7798253Abstract: Drilling apparatuses and methods for limiting precession are provided. According to one embodiment, a drilling apparatus includes a non-rotating stabilizer. The non-rotating stabilizer includes a first blade and a second blade, the first blade being arranged opposite the second blade. The first blade is biased radially outwardly by a force of a first value. The second blade is not biased radially outwardly by a force corresponding to the first value. The second blade may be a blade which is slidable along the non-rotating stabilizer in an axial direction and allow free sliding axial contact with the formation.Type: GrantFiled: June 29, 2007Date of Patent: September 21, 2010Assignee: ValidusInventor: Frank J. Schuh
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Patent number: 7798238Abstract: The present invention generally relates to a method and apparatus for protecting tubular connections. In one aspect, an expandable tubular connection for use in a wellbore is provided. The tubular connection includes a tubular pin member. The tubular connection also includes a tubular box member having an end portion, wherein the tubular pin member is matable with the tubular box member to form the tubular connection. Additionally, the tubular connection includes a sleeve member disposed on the tubular pin member, wherein the sleeve member is configured to substantially protect the end portion of the tubular box member as the tubular connection is lowered into the wellbore. In yet a further aspect, a method for utilizing a tubular connection in a wellbore is provided.Type: GrantFiled: May 22, 2007Date of Patent: September 21, 2010Assignee: Weatherford/Lamb, Inc.Inventors: Merle E. Evans, John Richard Setterberg, Jr., Lev Ring, Ghazi J. Hashem, Richard W. DeLange
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Patent number: 7793717Abstract: A rod guide is provided for use in a rotating rod string (12) for powering a progressive cavity pump (14) for pumping downhole fluids through tubing (16) to the surface. The rod guide includes a rotor sleeve (20) secured to the rod string and having a plurality of circumferentially spaced exterior surfaces (22) each positioned substantially along an exterior of a cylinder. The rotor sleeve also includes one or more stop surfaces (24) for limiting axial movement of a stator sleeve (40) with respect to the rotor sleeve, and two or more axially extending cavities (26) each extending from a bottommost surface to an opposing uppermost surface of the rotor sleeve and passing through the one or more stop surfaces. Stator sleeve (40) surrounds the rotor sleeve and has an interior surface (42) for engaging the plurality of circumferentially spaced exterior surfaces of the rotor sleeve, and a plurality of ribs (44) extending outward from two or more outer cylindrical surface portions (44) of the stator sleeve.Type: GrantFiled: December 27, 2007Date of Patent: September 14, 2010Assignee: Robbins & Myers Energy Systems L.P.Inventor: Matthew S. Davison
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Patent number: 7775272Abstract: A passive centralizer for stably centering within a well. The centralizer may be of a retracted profile for advancement within the well and deployable for centralization upon reaching an operation site. Deployment may be achieved in an automated manner without the requirement of operator interaction therefor. Furthermore, the centralizer may be truly passive in that energy for deployment may be stored entirely within the passive centralizer prior to its insertion within the well. The passive centralizer may also be compressed following centralization by any number of downhole restrictions. In this manner the passive centralizer may also be readily withdrawn from the well.Type: GrantFiled: March 14, 2007Date of Patent: August 17, 2010Assignee: Schlumberger Technology CorporationInventors: Keith Nelson, Franz Aguirre
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Publication number: 20100108394Abstract: A downhole tool (10?) comprises a body (12?) having a longitudinal axis and a body through-bore (14?), a slot (34?) communicating the outside of the body with the body through-bore. A sleeve actuator (30?) mandrel also has a bore and is selectively axially slidable in the body through-bore. A hollow bar (36?) is slidable with a radial component in the slot. At least two levers (210), each pivoted to the mandrel (about a first axis perpendicular the longitudinal axis) extend into the hollow bar and are pivoted thereto (about a second axis parallel the first axis). The levers lie in an actuation plane perpendicular the first and second axes and containing the slot. The levers are disposed at an inclined angle with respect to the longitudinal axis so that longitudinal motion of the mandrel translates into radial movement of the bar.Type: ApplicationFiled: March 10, 2008Publication date: May 6, 2010Applicant: REAMERCO LIMITEDInventors: Andrew Ollerenshaw, Mark Russell
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Patent number: 7708063Abstract: Disclosed herein is a method for centralizing a downhole component. The method includes, delivering a tubular member with a plurality of lines of weakness therein to a site requiring a centralizer, and actuating the tubular member by causing a portion of the tubular member to deform radially from an unactuated position. The actuated portion contacting a downhole tubular structure, while maintaining at least two separate fluid passages. A first fluid passage between the portion of the tubular member and an outside surface of the tubular member in the unactuated position and a second fluid passage at a dimension smaller than that of the outside surface of the tubular member in the unactuated position.Type: GrantFiled: February 9, 2007Date of Patent: May 4, 2010Assignee: Baker Hughes IncorporatedInventor: Larry T. Palmer
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Patent number: 7694564Abstract: A centering apparatus for internal nondestructive testing of a tube to be inspected includes an elongated shaft member coupled to an inspection probe; a plurality of fingers, pivotally attached at a first end thereof to a mounting surface affixed to the shaft member, the plurality of fingers circumferentially surrounding the shaft member; and an expansion mechanism, disposed between the plurality of fingers and the shaft member, the expansion mechanism configured to selectively and outwardly extend a second end of the plurality of fingers with respect to a longitudinal axis of the shaft member, so as to bring the second end of the plurality of fingers into contact with an inner surface of the tube to be inspected, thereby centering the inspection probe within the tube.Type: GrantFiled: May 21, 2007Date of Patent: April 13, 2010Assignee: ALSTOM Technology Ltd.Inventors: Jacques L. Brignac, Roland R. Moser
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Publication number: 20100059218Abstract: The present invention relates to a method of forming downhole apparatus. The method comprises disposing a plastics material (26) on a reinforcing apparatus (24) to form a body (12) having a bore extending through the body. The reinforcing apparatus (24) provides reinforcement of the plastics material (26) and the thus formed body (12) is configured to provide, when in use, standoff between downhole components, with the reinforcing apparatus being configured to at least one of contract and expand.Type: ApplicationFiled: October 31, 2007Publication date: March 11, 2010Applicant: PolyOil LimitedInventor: Calum Whitelaw