Means For Perforating, Weakening, Bending Or Separating Pipe At An Unprepared Point Patents (Class 166/55)
  • Patent number: 10260297
    Abstract: A subsea wellbore system is disclosed in which a return fluid flows from a wellbore to the surface via an annulus between a drill string and a casing and then between the drill string and a riser, wherein the system includes a device configured to prevent flow of the return fluid flowing through the annulus between the drill string and the riser, and a bypass line configured to divert the flow of the return fluid from the annulus between the drill string and the riser to the surface.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: April 16, 2019
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: Derek Mathieson, Colin Bickersteth
  • Patent number: 10233716
    Abstract: A ram blowout preventer (“BOP”) may be used for sealing about an object positioned in a vertical bore extending through the BOP. The ram BOP includes a body comprising a vertical bore extending through the body and a ram cavity intersecting the bore, a ram assembly movable laterally into and out of the BOP vertical bore and comprising a ram body, and an opposing ram assembly movable laterally into and out of the BOP vertical bore and comprising a ram body and a seal body coupled to the ram body, wherein the seal body comprises a seal configured to seal the entirety of the BOP vertical bore. The seal can be located on the upper and/or lower portion of the seal body to provide for bi-directional sealing across the BOP.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: March 19, 2019
    Assignees: Cameron International Corporation, Shell Oil Company
    Inventors: Johannes van Wijk, Melvyn F. Whitby
  • Patent number: 10174877
    Abstract: A pipe tool positioning system for efficiently inserting, positioning, and orienting a tool for use within a pipe. The pipe tool positioning system generally includes a sleeve with a receiver opening adapted to receive and removably retain a tool such as a grinder or the like. The sleeve includes radially-offset bladders extending outwardly from its outer surface. Each of the bladders may be individually inflated and/or deflated to aid in positioning of the tool within a pipe. A control unit may be provided with controllers for individually controlling each of the bladders. A camera may also be included adjacent to the sleeve to feed a display included with the control unit. By utilizing the present invention, various tools may efficiently be inserted and positioned for use within a pipe.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: January 8, 2019
    Inventor: Jeffrey M. Tanner
  • Patent number: 10000994
    Abstract: A multi-shot explosive charge includes a plurality of chambers divided by shared walls between adjacent chambers. Explosive material within at least one of the chambers creates an explosive force in an outward direction upon detonation and a perforating jet through the open end of the chamber. A perforating charge includes at least one explosive material producing explosive forces, upon detonation that collide within the chamber to create a perforating jet. Such perforating charge may be a chamber(s) within a multi-shot explosive charge, or an individual charge. First and second explosive materials can have the same or different compositions and detonation rates that together with the arrangement of materials within the chamber create the collision of forces. A plurality of multi-shot explosive charge or stand-alone perforating charges with colliding forces can be interconnected in an array, and can be included in a perforating gun(s).
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: June 19, 2018
    Assignee: IdeasCo LLC
    Inventor: Joseph Sites
  • Patent number: 9932795
    Abstract: Present embodiments of the disclosure are directed to a seal assembly for generating a seal between two opposing shear blades of a ram unit after shearing a tubular. The seal assembly may include at least a wiper, a sealing element, and an energizer. The wiper may clean a surface of a shear blade as the blade moves relative to the seal assembly. The sealing element may include an elastomeric material that can be deformed into engagement with the shear blade to generate the seal. The energizer may be a hard component that energizes the sealing element against the cleaned surface of the shear blade as the blade moves further relative to the seal assembly. The wiper may clean the sealing surface of the blade by removing debris from the surface prior to the energizer activating the seal.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: April 3, 2018
    Assignee: Axon Pressure Products, Inc.
    Inventors: William Rinehart Holland, Jr., Jess W. Shows, Bradford S. Franks
  • Patent number: 9879498
    Abstract: Present embodiments of the disclosure are directed to a blowout preventer having a ram unit designed to shear wellbore tubulars with a range of diameters. The ram unit may include a first shear block having a first blade profile, and a second shear block having a second blade profile. The blade profiles may each feature an angled portion for contacting the wellbore tubular. The angled portion of the first blade profile may be a different size (e.g., width dimension) than the angled portion of the second blade profile. This may enable the larger angled portion to support a smaller tubular while contact points on the smaller angled portion apply a force for shearing the tubular. With larger tubulars, an initial edge of the blade profile with the smaller angled portion may support the tubular while contact points on the larger angled portion apply a force for shearing the tubular.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: January 30, 2018
    Assignee: Axon Pressure Products, Inc.
    Inventor: William Rinehart Holland, Jr.
  • Patent number: 9863224
    Abstract: An isolation system is disclosed that contains: a lower wet connect portion, a central production tubing, an isolation device associated with the central production tubing, and at least one communication line, wherein the at least one communication line is associated with the lower wet connect portion and is disposed through an inside diameter of the isolation device. Further, a method for isolating a lower completion is disclosed that includes: conveying an isolation assembly to the lower completion, the isolation assembly including: a lower wet isolation device; and routing the at least one communication line through an inside diameter of the isolation device. Further a completion system is disclosed that contains a lower completion system and an isolation system associated with the lower completion system.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: January 9, 2018
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: David S. Bishop, John E. Britt, Kim Tijerina, Kirby G. Schrader, Connor S. George, Marc N. Samuelson, Kelly D. Ireland, Rockni Van Clief, Christian F. Bayne, David A. Bilberry
  • Patent number: 9828826
    Abstract: An isolation system is disclosed that contains a lower wet connect portion; a central production tubing; an isolation device associated with the central production tubing, and at least one control line. Further at least one control line is associated with the lower wet connect portion and is disposed through an inside diameter of the isolation device. Further method for isolating a lower completion is disclosed that includes conveying an isolation assembly to the lower completion, the isolation assembly including a lower wet connect portion, at least one control line, a central production tubing, and an isolation device, and routing the at least one control line through an inside diameter of the isolation device. Further completion system is disclosed that contains a lower completion system and an isolation system associated with the lower completion system.
    Type: Grant
    Filed: June 24, 2016
    Date of Patent: November 28, 2017
    Assignee: BAKER HUGHES, A GE COMPANY, LLC
    Inventors: David S. Bishop, John E. Britt, Kim Tijerina, Kirby Glen Schrader, Conner S. George, Marc N. Samuelson, Kelly D. Ireland, Rockni Van Clief, Christian F. Bayne, David A. Bilberry
  • Patent number: 9822602
    Abstract: A shear ram assembly for use in a BOP stack. The shear ram assembly includes a ram block disposed within the shear ram housing and having a forward end facing the bore, the ram block movable between an open position, in which the ram block is retracted away from the bore, and a closed position, in which the ram block is extended toward the bore. The blade has a forward surface, a rear surface, a lower shearing edge, and an upper edge, the blade attached to the forward face of the ram block by fasteners extending at an angle relative to an upper surface of the ram block through a portion of the ram block and into the rear surface of the blade, the rear surface of the blade angled so that it is perpendicular to the longitudinal axis of the fasteners.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: November 21, 2017
    Assignee: HYDRIL USA DISTRIBUTION, LLC
    Inventors: Julia Anne Bleck, Brian Scott Baker, Devasish Choudhury, Richard Lee Stringfellow
  • Patent number: 9732576
    Abstract: As compared to a BOP, a compact lightweight cutting system may have two gates with cutters moveable in opposite directions to cut drill pipe. The system utilizes a relatively short stroke and relatively less hydraulic oil for subsea operation. An opening through the gates surrounds the wellbore in the open position. The cutting elements are mounted within the openings. The piston rods and pistons are vertically offset with respect to each other. The compact cutting system with a gate valve can be used to substitute for a BOP to significantly reduce the size and weight required in an intervention system.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: August 15, 2017
    Assignee: Worldwide Oilfield Machine, Inc.
    Inventors: Reddi Udaya Bhaskara Rao, Tom McCreadie
  • Patent number: 9644444
    Abstract: A ram block includes an upper ram arm, a lower ram arm, a packer channel, and a packer disposed at least partially within the packer channel. The packer includes a skeletal member that is configured to couple to the upper ram arm and the lower ram arm to oppose vertical separation of the ram arms.
    Type: Grant
    Filed: September 8, 2011
    Date of Patent: May 9, 2017
    Assignee: Cameron International Corporation
    Inventor: Johnny Everett Jurena
  • Patent number: 9580984
    Abstract: Apparatus and methods for penetrating a downhole target within a wellbore include providing a body with a longitudinal axis, a first end, and a second end into a wellbore, the body having a nozzle at the first end. The nozzle is adapted to project a medium, such as molten thermite, in a direction generally parallel to the longitudinal axis, such as in a downhole direction. An initiation source is usable to consume a fuel load associated with the body to cause projection of the medium in a direction generally parallel to the axis of the wellbore, to affect an obstruction in the wellbore. A series of such apparatus can be used in succession, such that the actuation of each preceding apparatus enhances the effect of each subsequent apparatus on the obstruction.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 28, 2017
    Assignee: Robertson Intellectual Properties, LLC
    Inventors: Michael C Robertson, William F. Boelte, Douglas J. Streibich
  • Patent number: 9541230
    Abstract: A pipe tool positioning system for efficiently inserting, positioning, and orienting a tool for use within a pipe. The pipe tool positioning system generally includes a sleeve with a receiver opening adapted to receive and removably retain a tool such as a grinder or the like. The sleeve includes radially-offset bladders extending outwardly from its outer surface. Each of the bladders may be individually inflated and/or deflated to aid in positioning of the tool within a pipe. A control unit may be provided with controllers for individually controlling each of the bladders. A camera may also be included adjacent to the sleeve to feed a display included with the control unit. By utilizing the present invention, various tools may efficiently be inserted and positioned for use within a pipe.
    Type: Grant
    Filed: August 15, 2014
    Date of Patent: January 10, 2017
    Inventor: Jeffrey M. Tanner
  • Patent number: 9494001
    Abstract: The present invention relates to a downhole tool comprising a tool housing for accommodating components of the downhole tool, the tool housing comprising; a first tool housing part having a first end face and a second end face, and an activation unit removably connected with the first tool housing part, the activation unit comprising: a second tool housing part, and a closing member removably connected with the second tool housing part, wherein the second tool housing part and the closing member together constitute a fluid-tight chamber wherein a fluid is retained, the fluid-tight chamber housing mechanical and/or hydraulic and/or electrical components, and wherein the activation unit may be separated from the first tool housing part while the closing member is connected with the second tool housing part. The invention further relates to a downhole system and to a method of performing services of a downhole tool.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: November 15, 2016
    Assignee: WELLTEC A/S
    Inventor: Jørgen Hallundbæk
  • Patent number: 9422796
    Abstract: A device and method for use is provided to provide a port in a tubular without using explosives or a mechanical apparatus. By the utilization of the chemical cutter described herein the decision on the type of completion equipment to be implemented may be delayed or modified as the well creation progresses.
    Type: Grant
    Filed: September 10, 2012
    Date of Patent: August 23, 2016
    Assignee: Weatherford Technology Holdings, LLC
    Inventor: Kerry Gordon Daly
  • Patent number: 9416610
    Abstract: An apparatus for performing abrasive jet perforating in a well comprises a generally cylindrically shaped tube with a side, an upper portion, and a lower portion; a plurality of smooth holes drilled into the side of the tube; abrasive jets mounted in at least some of the plurality of smooth holes; protective plates mounted in the side of the tube and surrounding the abrasive jets to hold the abrasive jets in place; wafers recessed into pockets on the protective plates and surrounding the abrasive jets to protect the abrasive jets from damage due to rebound of abrasive-carrying fluid slurry ejected by the abrasive jets; and fasteners securing the protective plates to the side of the tube and positioned away from the rebound of abrasive-carrying fluid slurry ejected by the abrasive jets.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: August 16, 2016
    Assignee: TD TOOLS, INC.
    Inventor: Thomas L. Dotson
  • Patent number: 9353595
    Abstract: Systems and methods for quick access and control of a blown-out well or well that is flowing uncontrollably into the environment. Preferred embodiments of the present invention provide a re-entry of the casing of the blown-out well below the mud line and the inoperable blowout preventer. The present invention also provides a method to re-enter a production, or injection well, either subsea below the mud line or above the mud line for surface facility applications. According to a preferred embodiment of the present invention, a miniature wellbore is created from the outer casing through the various smaller casing strings into the final wellbore to protect the structural integrity of the well. Once the casing is safely penetrated, coil tubing and or kill weight fluid can be introduced to stop the uncontrolled flow of reservoir fluid. The well can then be sealed with cement and abandoned as normal practice dictates.
    Type: Grant
    Filed: August 11, 2014
    Date of Patent: May 31, 2016
    Assignee: GENERAL MARINE CONTRACTORS LLC
    Inventors: Iain Duncan, Martin Davidson
  • Patent number: 9341041
    Abstract: A cutting device, safety valve and method are for severing an object in the safety valve for a well, wherein the cutting device is structured for incorporation in the safety valve. The cutting device and the safety valve comprise a housing having a through bore structured for passing the object therethrough. The cutting device/safety valve comprises at least one induction coil device disposed in the housing, and around at least a portion of the bore of the housing. The induction coil device is directed inwards in the direction of the bore and is structured for optional, cutting-promoting heating, hence thermal structural weakening, of the object when located vis-à-vis the induction coil device. The induction coil device is structured in a manner allowing it to be connected to at least one electric power source for supply of electric power for heating. The housing comprises a heat-insulating portion disposed between the induction coil device and the housing.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: May 17, 2016
    Assignee: Smart Installations AS
    Inventor: Petter Birkeland
  • Patent number: 9316078
    Abstract: Induction shearing may be used to cut a drillpipe at an undersea well. Electromagnetic rings may be built into a blow-out preventer (BOP) at the seafloor. The electromagnetic rings create a magnetic field through the drillpipe and may transfer sufficient energy to change the state of the metal drillpipe to shear the drillpipe. After shearing the drillpipe, the drillpipe may be sealed to prevent further leakage of well contents.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: April 19, 2016
    Assignee: TRANSOCEAN INNOVATION LABS LTD
    Inventors: Gerard M. Ludtka, John Wilgen, Roger Kisner, Timothy Mcintyre
  • Patent number: 9267351
    Abstract: A downhole tool member for hydrocarbon resource recovery, comprising a shaped body of a polyglycolic acid resin having a weight average molecular weight of at least 70,000, having an effective thickness which is ½ or more of a critical thickness of surface decomposition, and exhibiting a thickness reduction rate in water which is constant with respect to time. As a result, it has become possible to more accurately design the strength and time up to the collapse of the downhole tool member which forms the whole or a part of a downhole tool for developing or repairing downholes for recovery of hydrocarbon resources, such as oil and gas.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: February 23, 2016
    Assignee: KUREHA CORPORATION
    Inventors: Masayuki Okura, Hikaru Saijo, Katsumi Yoshida, Hiroyuki Sato
  • Publication number: 20150144341
    Abstract: A technique facilitates forming cavities, e.g. perforations, into a geological formation. A jetting tool is moved downhole into a borehole, and an abrasive fluid is pumped down through the jetting tool. The abrasive fluid is discharged under pressure through a plurality of jetting nozzles to form jets of the abrasive fluid which act against a surrounding wall, e.g. a casing or other borehole wall. The jetting nozzles, and thus the jets, are oriented such that a rebound effect of the jets does not detrimentally impact the jetting tool. Consequently, the jets can be used to cut perforations through the surrounding wall and into the formation without eroding or otherwise detrimentally affecting components of the jetting tool.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Inventors: Victor Mayer, Vladimir Zhuk, Mark Oettli, Oscar Rivas Diaz
  • Publication number: 20150144340
    Abstract: Embodiments herein include a casing cutting tool comprising a top mandrel operatively coupled to a conveyance; a first retractable wedge operatively coupled to the top mandrel; a jetting tool operatively coupled to the retractable wedge, the retractable wedge thereby interposing the top mandrel and the jetting tool, wherein the jetting tool has one or more jetting nozzles arranged thereon; and a bottom terminal operatively coupled to the jetting tool, the jetting tool thereby interposing the retractable wedge and the bottom terminal.
    Type: Application
    Filed: October 2, 2014
    Publication date: May 28, 2015
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Jim B. Surjaatmadja, Leldon Mark Farabee, Jorn Tore Giskemo
  • Patent number: 9038521
    Abstract: A geological perforating tool (gun) shape charges disposed at an angle that provides an improvement over other known embodiments by accurately securing the charges in the tool to facilitate reliable, reproducible focus of the shaped charges. Charges are disposed on metal strips fitted into slots that are precision cut at predetermined angles in a tool barrel circumference.
    Type: Grant
    Filed: February 8, 2014
    Date of Patent: May 26, 2015
    Assignee: GEODYNAMICS, INC.
    Inventors: James A. Rollins, Kevin R. George, Nathan Clark
  • Patent number: 9022116
    Abstract: A shaped charge pipe cutter is constructed with the cutter explosive material packed intimately around an axially elongated void space that is continued through a heavy wall boss portion of the upper thrust disc. The boss wall is continued to within a critical initiation distance of a half-cuter junction plane. An explosive detonator is positioned along the void space axis proximate of the outer plane of the upper thrust disc. Geometric configurations of the charge thrust disc and end-plate concentrate the detonation energy at the critical initiation zone.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: May 5, 2015
    Inventors: William T. Bell, James G. Rairigh
  • Patent number: 9022104
    Abstract: Techniques for shearing a tubular of a wellbore penetrating a subterranean formation with a blowout preventer are provided. The blowout preventer has a housing with a hole therethrough for receiving the tubular. The techniques relate to a blade assembly including a ram block movable between a non-engagement position and an engagement position about the tubular, a blade carried by the ram block for cuttingly engaging the tubular, and a retractable guide carried by the ram block and slidably movable therealong. The restractable guide has a guide surface for urging the tubular into a desired location in the blowout preventer as the ram block moves to the engagement position.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: May 5, 2015
    Assignee: National Oilwell Varco, L.P.
    Inventors: Frank Benjamin Springett, Christopher Dale Johnson, Shern Eugene Peters, Eric Trevor Ensley
  • Publication number: 20150114644
    Abstract: A downhole tool conveyed via tubing within a wellbore at a wellsite comprises a hydraulic tool driven by fluid pumped to the hydraulic tool via the tubing. The downhole tool further comprises a valve in fluid communication between the tubing and the hydraulic tool. The valve is configurable in the wellbore between an expanded position, establishing a bypass diverting at least a portion of the pumped fluid away from the hydraulic tool, and a compressed position, closing the bypass.
    Type: Application
    Filed: October 28, 2013
    Publication date: April 30, 2015
    Applicant: Schlumberger Technology Corporation
    Inventors: Mark C. Oettli, L. Michael McKee, Robert L. Bucher, III, Mohammad Hajjari
  • Publication number: 20150101812
    Abstract: A mill for use in a wellbore includes a tubular housing having a bore therethrough and a plurality of eccentrically arranged pockets formed in a wall thereof and an arm disposed in each pocket. Each arm has a body portion and a blade portion extending from an outer surface of the body portion and is movable between an extended position and a retracted position. The mill further includes cutters disposed along each blade portion and a block disposed in each pocket and connected to the housing. Each block has a guide engaged with a mating guide of the respective body portion and an inner passage for providing fluid communication between the housing bore and the respective pocket. The mill further includes an actuator for extending the arms.
    Type: Application
    Filed: September 25, 2014
    Publication date: April 16, 2015
    Inventors: Ram K. BANSAL, Mohammed Aleemul HAQ, Thomas F. BAILEY, Richard J. SEGURA, Ian SMITH
  • Publication number: 20150096745
    Abstract: A system, method and apparatus for controlling a downhole operation is disclosed. A tool is operated to perform the downhole operation at a selected downhole location using a first value of an operation parameter of the tool. A magnetostrictive probe is used to determine a temperature profile along a section of a wellbore related to the operation being performed using the first value of the operation parameter. At least one temperature of the temperature profile is compared to a selected threshold. The operation parameter is altered to a second value based on the comparison of the temperature profile to the selected threshold.
    Type: Application
    Filed: October 4, 2013
    Publication date: April 9, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Ke Wang, Zhiyue Xu, Carlos A. Prieto
  • Publication number: 20150083424
    Abstract: A system for injecting high pressure abrasive fluid into an abrasive jet tool in a wellbore comprises an abrasives hopper; a slurry tank connected to the abrasives hopper; a low pressure abrasive pump connected to the slurry tank; a first high pressure vessel connected to the low pressure pump through a first high pressure valve; a high pressure non-abrasive pump connected to the first high pressure vessel through a second high pressure valve; and an abrasive jet tool connected to the first high pressure vessel through a third high pressure valve.
    Type: Application
    Filed: December 3, 2014
    Publication date: March 26, 2015
    Inventors: Thomas L. Dotson, Henry Wohltjen
  • Patent number: 8985209
    Abstract: A technique facilitates removal of excess sand during a jet perforating operation without requiring that the perforating string be pulled out of hole. A jet perforating tool is provided with at least one perforating nozzle for creating perforations in a well via high-pressure fluid. The jet perforating tool also comprises at least one wash nozzle oriented to direct fluid under pressure against a sand plug to break loose excess sand. A pair of seats and plug members may be used in the jet perforating tool to control the flow of pressurized fluid through the perforating jet nozzle and/or the wash nozzle.
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: March 24, 2015
    Assignee: Schlumberger Technology Corporation
    Inventor: Carolina Gonzalez Martinez
  • Patent number: 8985210
    Abstract: A method of severing at least a first object comprises: positioning a severing device adjacent to the first object, wherein the first object is a wireline or a tubular, and wherein the severing device comprises: a first reactant, and a second reactant; initiating a reaction, or allowing a reaction to occur, between the first reactant and the second reactant, wherein the reaction is an exothermic reaction, and wherein heat evolved from the reaction has a temperature greater than or equal to the melting point of the first object; and directing at least a portion of the heat from the outside of the first object through the first object.
    Type: Grant
    Filed: June 14, 2012
    Date of Patent: March 24, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Adam D. Wright
  • Patent number: 8978749
    Abstract: A perforation tool assembly comprises a perforation gun, and a mass energy absorber coupled to the perforation gun. The mass energy absorber is configured to alter the propagation of mechanical energy released by firing one or more perforation guns. The mass energy absorber comprises a mass and at least one absorber, and the at least one absorber is disposed between the mass and the perforating gun.
    Type: Grant
    Filed: September 19, 2012
    Date of Patent: March 17, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: John P. Rodgers, Marco Serra, Timothy S. Glenn, John D. Burleson
  • Patent number: 8967256
    Abstract: A perforation tool comprises an explosive charge comprising an explosive focal axis, a tool body containing the explosive charge, and a flowable material carried with the tool and disposed along the explosive focal axis. The flowable material is configured to be released by detonation of the explosive charge and flow to create at least a partial barrier to flow through the aperture in response to the perforation of the tool body by the explosive charge to form an aperture in the tool body.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: March 3, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Jerry L. Walker, John H. Hales
  • Patent number: 8960288
    Abstract: A system and method of perforating by stacking a perforating string within a wellbore, then deploying the perforating string to a designated depth for detonating shaped charges in the perforating string. The string can be formed by anchoring a single perforating gun in the wellbore, then landing subsequent guns on one another atop the anchored gun. Wet connects on the ends of the perforating guns enable mechanical engagement of each adjacent gun as well as signal communication through the connections.
    Type: Grant
    Filed: May 26, 2011
    Date of Patent: February 24, 2015
    Assignee: Baker Hughes Incorporated
    Inventor: Tim W. Sampson
  • Patent number: 8950509
    Abstract: A firing assembly is configured to be contained in a recess formed in a wall of a tubular string subassembly and operates without blockage of the central core of the casing subassembly. The assembly can include: one or more casings connected together to form a firing head containment body, the firing head containment body comprising a detonation chamber and actuation chamber; a detonator configured in the detonation chamber; a moveable actuator configured in the actuation chamber and operatively connected to the detonator, wherein the actuator is retained in a first position in the actuation chamber by a retention detent; a coupler operatively connected to the actuator opposite the detonator, wherein the coupler comprises a channel for communicating pressure through the coupler to the actuator that overcomes the retention detent and allows the actuator to move in the actuation chamber to as second position, wherein the detonator activates in dependence upon the actuator moving to the second position.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: February 10, 2015
    Assignee: Nine Energy Canada Inc.
    Inventors: Nathan Brian Coffey, Terry Lee Mytopher
  • Patent number: 8950487
    Abstract: An assembly for minimizing damaging effects of pressure waves on devices in a wellbore. The assembly comprises a dynamic device disposed in the wellbore and generating pressure waves during actuation; a barrier device disposed in the wellbore and presenting an obstacle to the pressure waves generated by the dynamic device; and an occlusion disposed in the wellbore between the dynamic device and the barrier device which reduces the damaging effects of the pressure waves on the barrier device.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: February 10, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Carlos Erik Baumann, Harvey Williams, Lawrence A. Behrmann, Kenneth R. Goodman, Adil Al Busaidy, Karim Al Sayed, Fokko Harm Cornelis Doombosch, Andrew J. Martin
  • Publication number: 20150027708
    Abstract: In one aspect an apparatus for performing a downhole operation is disclosed that in one non-limiting embodiment may include a downhole tool that contains a hydraulically-operated motor and a flow control device that in one position allows a fluid to pass through the motor while preventing the fluid to flow to the motor and in another position allows the fluid to flow to the motor to operate the motor.
    Type: Application
    Filed: July 24, 2013
    Publication date: January 29, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Jacob R. Honekamp
  • Patent number: 8939210
    Abstract: A pipe severing tool is arranged to align a plurality of high explosive pellets along a unitizing central tube that is selectively separable from a tubular external housing. The pellets are loaded serially in a column in full view along the entire column as a final charging task. Detonation boosters are pre-positioned and connected to detonation cord for simultaneous detonation at opposite ends of the explosive column. Devoid of high explosive pellets during transport, the assembly may be transported with all boosters and detonation cord connected.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: January 27, 2015
    Inventors: William T. Bell, James G. Rairigh
  • Publication number: 20150021029
    Abstract: According to one aspect of the disclosure, an intercept well for penetrating an existing tubular is drilled. A casing entry tool is provided in the intercept well and operated to form at least one aperture in the wall of the existing casing. The casing entry tool may be oriented toward the target tubular. In some embodiments, a generally concave notch may be positioned on the casing entry tool and adapted to engage with the convex outer surface of the target tubular. In some embodiments, a locking mechanism may retain the orientation of the casing entry tool within the intercept well.
    Type: Application
    Filed: July 18, 2014
    Publication date: January 22, 2015
    Inventors: William R. Abrant, Charles A. Butterfield, JR., Gerald Heisig
  • Patent number: 8931555
    Abstract: There is described a device for machining apparatus arranged for machining of a portion of a casing positioned in a wellbore, wherein a return fluid conduit extends from the machining apparatus in a direction toward a deposit area arranged in the wellbore. Also described is a method for machining of a portion of a casing positioned in a wellbore, wherein the method comprises the steps of: arranging a return fluid conduit between a machining apparatus and a deposit area or an area connected to the deposit area, providing a particle carrying liquid flow (M) in a direction from the machining apparatus and toward the deposit area, during the machining of the casing leading metal shavings into the liquid flow (M), and directing the liquid flow (M) into the return fluid conduit, as the metal shavings are held back and deposited in the wellbore.
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: January 13, 2015
    Assignee: West Production Technology AS
    Inventors: Helge Krohn, Mads Grinrød
  • Publication number: 20150000900
    Abstract: An apparatus for use in a wellbore is disclosed. The apparatus includes a downhole tool coupled to a wireline for conveying the downhole tool into the wellbore and for providing a data communication between the downhole tool and a surface device. The downhole tool further includes a settable device, a setting tool for setting the settable device in the wellbore, a sensor that provide measurements relating to downhole parameter, and a controller for determining the downhole parameter from the measurements and in response thereto altering an operation parameter.
    Type: Application
    Filed: June 26, 2013
    Publication date: January 1, 2015
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Edward J. O'Malley
  • Patent number: 8919236
    Abstract: A perforating gun assembly comprises a drop sub linking the firing head to the gun tube or tubes. The drop sub includes a 360° perimeter shaped charge explosive for severing pipe having an axial bore to accommodate a pass-through of the perforation charge detonation chord. Consequently, the severing tool is detonated by the traverse of a detonation wave along the chord length to disconnect the perforating gun prior to detonation of the perforation charges.
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: December 30, 2014
    Inventors: William T. Bell, Don Umphries
  • Patent number: 8919444
    Abstract: An apparatus for perforating a subterranean formation may include a casing, an energetic material, a liner, and an acid-generating material. The casing may have a slotted end configured to receive a detonator cord, and an open end. The energetic material may be disposed in the open end and in ballistic. The liner may enclose the open end, and the liner may include an acid-generating material that is configured to form an acid upon detonation of the explosive material.
    Type: Grant
    Filed: January 18, 2013
    Date of Patent: December 30, 2014
    Assignee: Owen Oil Tools LP
    Inventors: Matthew Clay, James Talavera
  • Publication number: 20140374100
    Abstract: The present invention relates to a punching tool for providing a hole or a dimple in a metal casing in a borehole. The punching tool comprises a tool body having an axial extension, and a punching unit connected with the tool body comprising: a fluid inlet, a punch movable between a retracted and a projected position and extending substantially radially in relation to the axial extension, and at least one hydraulic punch cylinder moving the punch between the retracted and the projected position. The present invention further relates to a method for providing a hole or a dimple in a metal casing downhole and to a method for installing a plug in an existing hole in the casing downhole.
    Type: Application
    Filed: September 27, 2012
    Publication date: December 25, 2014
    Applicant: WELLTEC A/S
    Inventors: Jorgen Hallundbaek, Rasmus Sommer
  • Publication number: 20140352964
    Abstract: One disclosed method includes conveying a casing cutting tool into the wellbore lined with at least one casing string and cement, stroking the casing cutting tool over a predetermined axial length of the wellbore while ejecting fluid from one or more nozzles in the casing cutting tool and thereby forming a plurality of longitudinal cuts through the casing string and cement, rotating the casing cutting tool about its longitudinal axis at two or more axially offset locations along the predetermined axial length while ejecting fluid from nozzles and thereby forming a plurality of axially offset transverse cuts in the casing string and the cement, whereby longitudinal cuts and axially offset transverse cuts form wedges in the wellbore, and dislodging the wedges from the wellbore and thereby exposing formation rock along the predetermined axial length.
    Type: Application
    Filed: June 4, 2013
    Publication date: December 4, 2014
    Inventors: Jim Basuki Surjaatmadja, Jorn Tore Giskemo, Oyvind Rakstang, Aimee Greening, Desmond Jones
  • Patent number: 8899346
    Abstract: A perforating assembly includes a material that can respond to a magnetic field by changing shape multiple times and causing a fire control circuit to activate and deactivate. The material may be a magnetic shape-memory alloy and can change shape when the magnetic field is removed or inverted. When the material changes shape, the material can cause another component of the perforating assembly to change position to activate or deactivate the fire control circuit, as desired.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: December 2, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Pete C. Dagenais, Michael L. Fripp
  • Publication number: 20140338910
    Abstract: A pipe severing tool is arranged to align a plurality of high explosive pellets along a unitizing central tube that is selectively separable from a tubular external housing. The pellets are loaded serially in a column in full view along the entire column as a final charging task. Detonation boosters are pre-positioned and connected to detonation cord for simultaneous detonation at opposite ends of the explosive column. Devoid of high explosive pellets during transport, the assembly may be transported with all boosters and detonation cord connected.
    Type: Application
    Filed: May 19, 2014
    Publication date: November 20, 2014
    Inventors: William T. Bell, James G. Rairigh
  • Patent number: 8887798
    Abstract: A downhole stabilizer includes a radial expansion assembly deployed about, and configured to rotate substantially freely with respect to, a tool mandrel. The expansion assembly preferably includes at least one stabilizer block configured to extend radially outward from the mandrel into contact with a wellbore casing string. When deployed between uphole and downhole cones, the stabilizer block preferably includes a plurality of angled splines configured to engage corresponding splines disposed on the cones. Relative axial motion between the stabilizer block and the cones causes a corresponding radial extension or retraction of the block.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: November 18, 2014
    Assignee: Smith International, Inc.
    Inventors: James A. Simson, Ronald G. Schmidt, Charles H. Dewey
  • Patent number: 8881817
    Abstract: A downhole tool having a cylindrical body, a sleeve having a contact portion disposed on a distal end, and a cutter having a radiused portion on a top surface operatively engageable with the contact portion. Also, a method of cutting drill pipe, the method including disposing a cutting tool in a wellbore around the drill pip and actuating a radiused cutter of the cutting tool, wherein the actuating includes radially extending the cutter into contact with the drill pipe. The method also includes applying a substantially constant force between the cutter and the drill pipe and rotating the cutting tool. Additionally, a cutter for a drill pipe cutting tool, the cutter including a work surface located at a first end of the cutter, an attachment point located at a second end of the cutter, and a radiused surface located between the work surface and the attachment point.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: November 11, 2014
    Assignee: Smith International, Inc.
    Inventors: Malcolm Perschke, Harshad Patil, Nishant Koti
  • Patent number: 8881816
    Abstract: A perforation tool assembly is provided. The perforation tool assembly comprises an energy train, a first perforation gun, and a second perforation gun. The energy train comprises a moderator to reduce the speed of propagation of a detonation in a direction parallel to the axis of the perforation tool assembly. The first perforation gun comprises a plurality of explosive charges coupled to a first portion of the energy train. The second perforation gun comprises a plurality of explosive charges coupled to a second portion of the energy train, wherein the second portion of the energy train is coupled to the first portion of the energy train.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: November 11, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Timothy S. Glenn, John P. Rodgers, Jeff A. Nelson, John D. Burleson, Marco Serra, John H. Hales