With Explosive Or Gas Generating Means In Well Patents (Class 166/63)
  • Patent number: 9732897
    Abstract: A sealing device is provided suitable for making at least partially fluid-tight a connection between a first pipe and a smaller second pipe, a part of the second pipe being able to be engaged in the first pipe while leaving an inter-pipes space between the two pipes in the radial direction. The sealing device is mounted on a supporting pipe and is adapted to spread out in the inter-pipes space from a guard position to a sealing position. It comprises at least one sealing set including substantially rigid movable sealing members which extend each along a predetermined angular sector in a circumferential direction and are individually guided in displacement between the guard position and the sealing position.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: August 15, 2017
    Assignee: Electricite de France
    Inventor: Christophe Legendre
  • Patent number: 9726005
    Abstract: The invention relates to a positioning method for determining a position of a downhole tool moving at a velocity in a casing in a well, comprising the steps of measuring a magnitude and/or direction of a magnetic field by means of a first sensor several times over a time period while moving along a first part of the casing manufactured from metal, determining a manufacturing pattern of the casing along the first part from the measurement measuring a magnitude and/or direction of a magnetic field by means of the first sensor several times over a time period while moving along a second part of the casing manufactured from metal, determining the velocity of the tool along the second part, adjusting the determined velocity of the tool along the second part based upon the manufacturing pattern.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: August 8, 2017
    Assignee: WELLTEC A/S
    Inventors: Jørgen Hallundbæk, Mathias Francke
  • Patent number: 9598942
    Abstract: An igniter assembly is disclosed for initiating an explosive charge in a setting tool. In an embodiment, the igniter assembly includes a longitudinal axis, and a holder including a first end, a second end opposite the first end, and a through passage. In addition, the igniter assembly includes an igniter disposed within the through passage. The igniter comprises a single igniter system. Further, the igniter assembly includes a contact seal plug disposed at least partially within the through passage. The contact sealing plug is configured to sealingly engage the through passage to prevent fluid flow out of the through passage beyond the first end of the holder.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: March 21, 2017
    Assignee: G&H DIVERSIFIED MANUFACTURING LP
    Inventors: Joe Noel Wells, Benjamin Vascal Knight
  • Patent number: 9593574
    Abstract: A well completion system includes tubing, and packers that seal the annulus of the well outside the tubing. The packers are spaced to define voids in the annulus that are substantially free from hydrostatic pressure. Also included are hollow sleeve valves having upper and lower sealing elements, and that have closed and open positions. Each sleeve valve is positioned within the tubing at a depth corresponding to a void in the annulus. Ports extend through the sleeve valve and tubing, so that when the sleeve valve is closed, the port is closed, and when the sleeve valve is open, the port is open. Also included is a sampling tool having top and bottom sealing elements, the bottom sealing element for engaging the lower sealing element of a sleeve valve, and the top sealing element for engaging the upper sealing element of the sleeve valve when the sleeve valve is open.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: March 14, 2017
    Assignee: Saudi Arabian Oil Company
    Inventor: AlWaleed Abdullah AlGouhi
  • Patent number: 9422794
    Abstract: The invention provides a system for lining a wellbore. The system comprises an expandable tubular element arranged in the wellbore, the tubular element having a first end part and a second end part whereby the second end part extends into a tubular wall located in the wellbore. An expander is arranged to radially expand the tubular element by movement of the expander through the tubular element in a direction from the first end part to the second end part, said direction defining an expansion direction. The system further comprises an anchor arranged to anchor said second end part to the tubular wall in a manner that the anchor substantially prevents movement of said second end part in the expansion direction and allows movement of said second end part in the direction opposite to the expansion direction.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: August 23, 2016
    Assignee: Shell Oil Company
    Inventors: Daniele Di Crescenzo, Antonius Leonardus Maria Wubben, Djurre Hans Zijsling
  • Patent number: 9422966
    Abstract: Shear member designs in various formats are presented with additional features for segment retention and subsequent removal after a shearing event and removal of the tool from a subterranean location. In some embodiments a portion of the shear member is retained by threads so that the segment stays in the part and then can be removed at the surface with putting a notch in the segment and removing it with a screwdriver. In another embodiment a retaining pin in an intersecting bore can hold onto a sheared remnant of the shear pin by pushing the remnant laterally in the bore that it is mounted. Another design for a shear ring uses a split design with the right angle portion of the ring that gets sheared appearing in segments so that the ring can be rapidly snapped into a groove at its outer periphery followed by a retaining cap facilitating removal.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: August 23, 2016
    Assignee: Baker Hughes Incorporated
    Inventors: Levi B. Oberg, Gregory L. Hern, Jim H. Roddy, Yingqing Xu, Douglas J. Lehr
  • Patent number: 9394754
    Abstract: The present invention relates to a kick over tool (5) for manipulating and installing devices into and removing devices from a side pocket mandrel (2), where the kick over tool is designed to enable multiple operations in the same run. The kick over tool comprises a tubular carrier housing (6) adapted for passage through a full opening bore of a production string, at least a first and second setting device (8,9) that is arranged in said carrier housing, the first and second setting device being pivotally connected to a first and second articulated linkage mechanism (12,13) comprising a coupling device for the well bore device.
    Type: Grant
    Filed: December 7, 2010
    Date of Patent: July 19, 2016
    Assignee: PETROLEUM TECHNOLOGY COMPANY AS
    Inventors: Erling Kleppa, Ståle Pettersen
  • Patent number: 9376910
    Abstract: A downhole formation testing and sampling apparatus. The apparatus includes an expandable packer having a radially contracted running configuration and a radially expanded deployed configuration. At least one elongated sealing pad is operably associated with the expandable packer such that operating the expandable packer from the running configuration to the deployed configuration establishes a hydraulic connection between the at least one elongated sealing pad and the formation. The at least one elongated sealing pad has at least one opening establishing fluid communication between the formation and the interior of the apparatus. In addition, the at least one elongated sealing pad has an outer surface operable to seal a region along a surface of the formation to establish the hydraulic connection therewith. The at least one elongated sealing pad further has at least one recess operable to establish fluid flow from the formation to the at least one opening.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: June 28, 2016
    Inventors: Mark A. Proett, Clovis S. Bonavides
  • Patent number: 9376903
    Abstract: The method for enhancing of forming at least one fracture having a required width r and length L in the formation surrounding fracturing around a wellbore in the regime of resonance by means of applying vibrations to the formation which is undergoing pressurizing exceeding the fracture gradient pressure of the formation.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: June 28, 2016
    Inventors: Sergey Kostrov, William Wooden
  • Patent number: 9175533
    Abstract: This invention particularly relates to improving the engagement of the slip elements within a casing or tubing. Particularly, the invention is directed to improving the penetration of anchors on slip elements to better set downhole tools. Generally, in one aspect, the invention relies on decreasing the contact surface of the cutting edge of the anchor during the initial penetration of the anchor into the casing.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: November 3, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventor: William Ellis Standridge
  • Patent number: 9163477
    Abstract: An insert for a downhole plug for use in a wellbore. The insert can include a body having a bore formed at least partially therethrough. One or more threads can be disposed on an outer surface of the body and adapted to threadably engage an inner surface of the plug proximate a first end of the plug. One or more shearable threads can be disposed on an inner surface of the body. The one or more shearable threads can be adapted to threadably engage a setting tool that enters the plug through the first end thereof and to deform to release the setting tool when exposed to a predetermined force that is less than a force required to deform the one or more threads disposed on the outer surface of the body. At least one impediment can be disposed within the body.
    Type: Grant
    Filed: June 5, 2012
    Date of Patent: October 20, 2015
    Inventor: W. Lynn Frazier
  • Patent number: 9140087
    Abstract: A sealing means for debris chambers of a debris extraction tool and a method for dismantling and handling a debris extraction toll using such sealing means are disclosed. The sealing means for a debris chamber for a debris extraction tool may include a cylindrical body sealed at one end and open at the other end. The open end may be connectable to an end of the debris chamber. The method for dismantling a debris extraction tool, wherein the debris extraction tool comprises a plurality of connected debris chambers, may use the sealing means and may include connecting the sealing means to the topmost debris chamber of the debris extraction tool.
    Type: Grant
    Filed: November 11, 2011
    Date of Patent: September 22, 2015
    Assignee: M-I Drilling Fluids UK Limited
    Inventor: George Telfer
  • 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
  • Publication number: 20150107819
    Abstract: A downhole tool comprising a first section having an internal sidewall defining at least a portion of a flowpath, and a ported outer sidewall and an explosive having at least a portion within said first section. An annular portion has at least one chamber having an end positioned adjacent to the explosive and an inlet providing a communication path to said flowpath. A detonator assembly is located within each chamber proximal to the explosive such that detonation of the assembly causes detonation of the explosive. A firing pin is propelled toward the detonation assembly by providing communication between the chamber and the flow path, causing a pressure differential between the pressure isolated ends of the firing pin.
    Type: Application
    Filed: July 26, 2013
    Publication date: April 23, 2015
    Inventors: Raymond Hofman, William Sloane Muscroft, Steve Jackson
  • Publication number: 20150090442
    Abstract: A reaction apparatus for providing reactants from a surface to a wellbore to create a generated gas when the reactants undergo a reaction in situ to affect the density of a fluid in the wellbore, the reaction apparatus comprises a reaction housing, the reaction housing comprises a first reactant cell configured to contain a first reactant, a second reactant cell configured to contain a second reactant, a mixing chamber, configured to allow the first reactant and the second reactant to mix, a first passage configured to allow the first reactant to pass from the first reactant cell to the mixing chamber, a second passage configured to allow the second reactant to pass from the second reactant cell to the mixing chamber, an outlet configured to allow the generated gas from the reaction to escape the mixing chamber, a line comprising a plurality of electric cables, and a reel.
    Type: Application
    Filed: September 29, 2014
    Publication date: April 2, 2015
    Inventors: Rafael LASTRA, Mohammed Nabil NOUI-MEHIDI
  • Patent number: 8973657
    Abstract: An apparatus for obtaining fluid samples in a subterranean wellbore comprises a carrier assembly configured to be disposed in a subterranean wellbore; a sampling chamber operably associated with the carrier assembly; a pressure assembly coupled to the sampling chamber and configured to pressurize a fluid sample obtained in the sampling chamber, wherein the pressure assembly is configured to contain a pressure generating agent; an activation mechanism configured to activate the pressure generating agent; and a power device operably associated with the carrier assembly and configured to provide an impulse for activating the activation mechanism, wherein the power device is not disposed on the pressure assembly.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: March 10, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Scott L. Miller, Cyrus A. Irani
  • Publication number: 20150027722
    Abstract: A method of using an electrochemical gas lift apparatus to induce artificial gas lift in a production fluid includes introducing the electrochemical gas lift apparatus into a well bore having a production zone, operating the electrochemical gas lift apparatus such that a combination of hydrocarbon fluid and formation water is introduced into the interior of the electrochemical gas lift apparatus, introducing electrical power to the electrochemical gas lift apparatus such that at least a portion of formation water in the interior of the electrochemical gas lift apparatus converts into product gases, operating the electrochemical gas lift apparatus such that the product gases form product gas bubbles in the interior of the electrochemical gas lift apparatus, and operating the electrochemical gas lift apparatus such that production fluid forms in the interior of the electrochemical gas lift apparatus. The production fluid comprises hydrocarbon fluid, unconverted formation water and product gas bubbles.
    Type: Application
    Filed: July 22, 2014
    Publication date: January 29, 2015
    Inventors: Abdulrahman Abdulaziz Al-Mulhem, Mohamed Nabil Noui-Mehidi
  • 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
  • Patent number: 8939205
    Abstract: The methods described are for determining distribution, orientation and dimensions of networks of hydraulically-induced fractures within a subterranean formation containing fluids. Micro-seismic events are generated, after cessation of fracturing and establishment of fracture networks, by particles introduced into the fractures which are capable of explosive or chemical reaction. In one method, attachment site particles are positioned within the formation during fracturing and additional reactive particles are later introduced. The reactive particles attach to the attachment sites and, upon a triggering event, react to produce micro-seismic events. The waves generated by the micro-seismic events are used to provide mapping of the effective fracture space. Additionally, time-lapse mapping is provided with use of “species” of attachment sites and reactive particles.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: January 27, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Haluk Vefa Ersoz
  • Publication number: 20150013977
    Abstract: The present invention relates to systems, apparatuses, and methods for providing a reliable, high purity source of CO2 that is used in the recovery of formation deposits, such as fossil fuels. At least a portion of the fossil fuels recovered may be directly combusted or extracted using the same process used to provide the pure source of CO2 without the need to first remove CO2, sulfur, other fossil fuels, or other impurities.
    Type: Application
    Filed: September 24, 2014
    Publication date: January 15, 2015
    Inventors: Miles R. Palmer, Rodney John Allam, Jeremy Eron Fetvedt, David Arthur Freed, Glenn William Brown, JR.
  • Patent number: 8931569
    Abstract: A method and apparatus for a wellbore assembly. The wellbore assembly may comprise a conveyance member including at least one of a continuous spooled rod, a wireline, and a slickline; an accumulator system connected to the conveyance member; and a setting tool connected to the accumulator system. The accumulator system may be configured to supply a fluid pressure to actuate the setting tool. A method of operating a wellbore tool may comprise lowering a wellbore assembly into a wellbore using a conveyance member including at least one of a continuous spooled rod, a wireline, and a slickline, wherein the wellbore assembly includes an accumulator system and a setting tool. The method may comprise actuating the accumulator system to provide a fluid pressure to the setting tool. The method may comprise actuating the setting tool using the fluid pressure.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: January 13, 2015
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Walter Stone Thomas Fagley, IV, Gary Duron Ingram, Paul James Wilson, Simon John Harrall
  • Publication number: 20150007975
    Abstract: Certain aspects and features of the present invention are directed to a supercapacitor device that can be disposed in a wellbore through a fluid-producing formation. The supercapacitor device can include a body that can be disposed in the wellbore, a supercapacitor disposed in the body, at least two terminals disposed at least partially outside the body, and an actuation mechanism. The supercapacitor stores energy. The terminals can be electrically connected with the supercapacitor. An electrical connection between the supercapacitor and the terminals can cause the energy to be discharged from the supercapacitor in response to a conductive material providing an electrical path between the at least two terminals. The actuation mechanism can selectively prevent a deployment of the supercapacitor device in the wellbore from causing a discharge of the energy from the supercapacitor.
    Type: Application
    Filed: September 24, 2014
    Publication date: January 8, 2015
    Inventors: Christopher M. McMillon, Robert M. Neely, Gregory T. Werkheiser
  • Publication number: 20140374084
    Abstract: An explosive system for fracturing an underground geologic formation adjacent to a wellbore can comprise a plurality of explosive units comprising an explosive material contained within the casing, and detonation control modules electrically coupled to the plurality of explosive units and configured to cause a power pulse to be transmitted to at least one detonator of at least one of the plurality of explosive units for detonation of the explosive material. The explosive units are configured to be positioned within a wellbore in spaced apart positions relative to one another along a string with the detonation control modules positioned adjacent to the plurality of explosive units in the wellbore, such that the axial positions of the explosive units relative to the wellbore are at least partially based on geologic properties of the geologic formation adjacent the wellbore.
    Type: Application
    Filed: January 14, 2013
    Publication date: December 25, 2014
    Inventors: Jonathan L. Mace, Bryce C. Tappan, Gerald J. Seitz, Lawrence E. Bronisz
  • Publication number: 20140345847
    Abstract: The power charge of a wireline pressure setting assembly includes a barrier located adjacent an open upper end of the power charge. The barrier centralizes the power charge in horizontal applications to ensure the associated tool properly sets. The barrier also limits how much of the power charge can flow out of its housing in a horizontal application. The barrier can be porous or impervious to contain as much of the power charge in a small sub-chamber in the pressure chamber defined by the barrier. Once ignition starts in the power charge the barrier can be consumed or otherwise disabled for the normal functioning of the setting device to set a tool and release from the set tool in a normal manner.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Applicant: Baker Hughes Incorporated
    Inventors: Chad H. Picciotti, Kent S. Meyer, Joesph A. Guthrie
  • Patent number: 8893786
    Abstract: Methods of actuating a well tool can include releasing chemical energy from at least one portion of a reactive material, thermally expanding a substance in response to the released chemical energy, and applying pressure to a piston as a result of thermally expanding the substance, thereby actuating the well tool, with these steps being repeated for each of multiple actuations of the well tool. A well tool actuator can include a substance contained in a chamber, one or more portions of a reactive material from which chemical energy is released, and a piston to which pressure is applied due to thermal expansion of the substance in response to each release of chemical energy. A well tool actuator which can be actuated multiple times may include multiple portions of a gas generating reactive material, and a piston to which pressure is applied due to generation of the gas.
    Type: Grant
    Filed: December 11, 2010
    Date of Patent: November 25, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Adam D. Wright, Michael L. Fripp, Donald G. Kyle, Cyrus A. Irani
  • Publication number: 20140326450
    Abstract: A pneumatic fracturing method for exploiting shale gas, the method including: 1) applying a compressed gas for a first period of time at a first pressure to a shale formation; 2) applying the compressed gas for a second period of time at a second pressure to the shale formation; and 3) repeating steps 1) and 2) to produce fissures in the shale formation. A temperature of the compressed gas is at least 80° C. A maximum pressure of the compressed gas is at least 25 megapascal, and a minimum pressure of the compressed gas is between ¼ and ? of the maximum pressure.
    Type: Application
    Filed: July 20, 2014
    Publication date: November 6, 2014
    Inventors: Feng GAO, Heping XIE, Fubao ZHOU, Yang JU, Lingzhi XIE, Yingke LIU, Yanan GAO, Jianfeng LIU, Ru ZHANG
  • Publication number: 20140290950
    Abstract: An antenna for receiving electromagnetic energy with multiple grid arrays includes first and second grid patterns of diodes each acting as a half-wave rectifying element when illuminated by the electromagnetic energy whereby the electromagnetic energy is efficiently converted into electrical current at an output even when the electromagnetic energy is randomly polarized. The multiple grid arrays are spaced from one another and can also be offset from one another. In accordance with an aspect of the invention, the first and second grid patterns of diodes have varying diode densities.
    Type: Application
    Filed: March 26, 2012
    Publication date: October 2, 2014
    Inventors: Raphael J. Welsh, Larry J. House
  • Patent number: 8839871
    Abstract: Methods of actuating a well tool can include releasing chemical energy from at least one portion of a reactive material, thermally expanding a substance in response to the released chemical energy, and applying pressure to a piston as a result of thermally expanding the substance, thereby actuating the well tool, with these steps being repeated for each of multiple actuations of the well tool. A well tool actuator can include a substance contained in a chamber, one or more portions of a reactive material from which chemical energy is released, and a piston to which pressure is applied due to thermal expansion of the substance in response to each release of chemical energy. A well tool actuator which can be actuated multiple times may include multiple portions of a gas generating reactive material, and a piston to which pressure is applied due to generation of the gas.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: September 23, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Adam D. Wright, Michael L. Fripp, Donald G. Kyle, Cyrus A. Irani
  • Publication number: 20140262328
    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: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: MCR Oil Tools, LLC
    Inventors: Michael C. Robertson, William F. Boelte, Douglas J. Streibich
  • Publication number: 20140262245
    Abstract: A system for matching the hydrocarbon reservoir inflow with the outflow of an artificial lift system utilizes an apparatus which makes real time fluid level determinations based upon shock waves detected by a surface device and inputs the observed fluid levels into a processor which controls the speed of a motor which operates a subsurface pump, so as to increase hydrocarbon production. The apparatus which makes real time fluid determinations is installed such that a gas emission port and a pressure wave pressure wave receiving port are placed within the tubing-casing annulus.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: Hytech Energy, LLC
    Inventors: David R Hill, Dennis Duncan Earl
  • Publication number: 20140238678
    Abstract: Propellant structures and stimulation tools incorporating propellant structures may comprise composite propellant structures including two or more regions of propellant having different compositions, different grain structures, or both. An axially extending initiation bore containing a initiation element may extend through a center of the propellant structure, or may be laterally offset from the center. An offset initiation bore may be employed with a composite grain structure. Methods of tailoring ballistic characteristics of propellant burn to result in desired operational pressure pulse characteristics are also disclosed.
    Type: Application
    Filed: February 28, 2013
    Publication date: August 28, 2014
    Inventors: JOHN A. ARRELL, JR., STEVEN E. MOORE
  • Patent number: 8807003
    Abstract: A method comprises providing a gun string assembly within a wellbore and perforating the wellbore using the gun string assembly. The gun string assembly comprises a plurality of perforating guns coupled in series. A first perforating gun of the plurality of perforating guns comprises a first portion of shaped charges, and a second perforating gun of the plurality of perforating guns comprises a second portion of shaped charges operably associated with a secondary pressure generator. The first perforating gun and the second perforating gun are configured in the gun string assembly to provide a pressure transient comprising one or more pressures at a location in the wellbore that meet one or more thresholds.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: August 19, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Cam Van Le, Darren Ross Barlow, Jeffrey Alan Nelson
  • Patent number: 8789467
    Abstract: An explosive tool comprises a body structure, a charge, a detonator to ignite the charge via propagation of thermal energy, a pressure actuated safety to prevent propagation of sufficient thermal energy to ignite the charge when the pressure actuated safety is subjected to a surface pressure and to not prevent propagation of sufficient thermal energy to ignite the charge when the pressure actuated safety is subjected to at least a predefined pressure threshold, and a temperature actuated safety to prevent propagation of sufficient thermal energy to ignite the charge when the temperature actuated safety is subjected to a surface temperature and to not prevent propagation of sufficient thermal energy to ignite the charge when the temperature actuated safety is subjected to at least a predefined temperature threshold. The charge, the detonator, the pressure actuated safety, and the temperature actuated safety are contained within the body structure.
    Type: Grant
    Filed: March 20, 2013
    Date of Patent: July 29, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Donald L. Crawford
  • Publication number: 20140196891
    Abstract: A self-contained gas impulse apparatus includes a gas impulse unit for generating a plurality of gas blasts when supplied with pressurized gas. A gas supply unit is connected by a gas conduit to the gas impulse unit. The gas supply unit is configured to be remotely activated to supply pressurized gas via the conduit to the gas impulse unit. The self-contained gas impulse apparatus is transportable by a cable to and from a remote location for operation at the remote location.
    Type: Application
    Filed: January 16, 2013
    Publication date: July 17, 2014
    Applicant: Flow Industries, Ltd.
    Inventors: Yuri ASS, Gennadi Kabishcher
  • Publication number: 20140184364
    Abstract: Certain aspects and features of the present invention are directed to a supercapacitor device that can be disposed in a wellbore through a fluid-producing formation. The supercapacitor device can include a body that can be disposed in the wellbore, a supercapacitor disposed in the body, at least two terminals disposed at least partially outside the body, and an actuation mechanism. The supercapacitor stores energy. The terminals can be electrically connected with the supercapacitor. An electrical connection between the supercapacitor and the terminals can cause the energy to be discharged from the supercapacitor in response to a conductive material providing an electrical path between the at least two terminals. The actuation mechanism can selectively prevent a deployment of the supercapacitor device in the wellbore from causing a discharge of the energy from the supercapacitor.
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Christopher M. McMillon, Robert M. Neely, Gregory T. Werkheiser
  • Patent number: 8757263
    Abstract: This invention relates to the oil and gas industry and to exploration and production of water resources, in particularly, for stimulation of fluid flow to the well, e.g., for higher oil production, productivity index, and recovery factor. The disclosed device and method can be used for higher permeability of the pay zone due to creation of a network of microcracks in the bottomhole formation zone and facilitates to increase the flow of oil, or other fluids, from the reservoir to the well. Generation of cyclic pressure pulses with varied amplitude and time parameters and proper localization of pulses in space through mechanism of convective combustion provides a “soft” impact upon the wellbore without risk of damage or formation consolidation; the said impact is achieved by using a device which is a downhole cyclic pressure generator operating by a consecutive combustion of layers of compositions having different combustion rates.
    Type: Grant
    Filed: May 30, 2007
    Date of Patent: June 24, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Alexey Evgenievich Barykin
  • Patent number: 8739673
    Abstract: A method comprises: a. determining a configuration of a gun string, b. determining, by a computer, a pressure transient at a location in a wellbore, c. comparing the one or more pressures with the one or more pressure thresholds at the location, and d. perforating the wellbore with the gun string using the determined configuration of the gun string when the one or more pressures meet the one or more pressure thresholds at the location. The location in the wellbore has one or more pressure thresholds, and the pressure transient comprises one or more pressures.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: June 3, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Cam Van Le, Darren Ross Barlow, Jeffrey Alan Nelson
  • Patent number: 8726996
    Abstract: A downhole tool assembly for use in a wellbore includes a tubular body carrying an explosive which is selectively detonated to create a dynamic underbalance or overbalance effect in the wellbore. The tubular body has opposite ends provided with plug assemblies including plug elements movable between a normally collapsed state and an actuable expanded state. The plug elements are adapted to be actuated to the expanded state between the tubular body and an outer extent of the wellbore before the creation of the dynamic underbalance or overbalance effect to isolate a discrete segment of the wellbore to which the dynamic underbalance or overbalance effect is confined.
    Type: Grant
    Filed: May 28, 2010
    Date of Patent: May 20, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Adil Mahallab Al Busaidy, Karim Al Sayed, Fokko H. C. Doornbosch, Carlos E. Baumann, Lawrence A. Behrmann, Harvey Williams, Andrew J. Martin
  • Patent number: 8672031
    Abstract: Embodiments of the invention include methods and systems for perforating a well using a wired work string assembly. According to embodiments of the invention, the method includes positioning a wired work string assembly in a wellbore, the work string assembly comprising a plurality of wired pipe communicatively coupled at each joint, a depth correlation tool, and a perforating gun assembly. A depth of the perforating gun assembly is determined from a depth correlation tool positioned within the wellbore, and an electrical signal related to the depth of the perforating gun assembly is transmitted to a surface above the wellbore. Firing of the perforating gun assembly is initiated via a signal transmitted from the surface above the wellbore. An electrical signal from the wellbore is transmitted to the surface to confirming the firing of perforating gun assembly. The system includes various tools for perforating the well using the disclosed methods.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: March 18, 2014
    Assignee: Schlumberger Technology Corporation
    Inventor: Vladimir Vaynshteyn
  • Publication number: 20140069639
    Abstract: A friction reduction assembly for a downhole tubular. The friction reduction assembly includes an electrically activated friction reduction sub. The sub includes a flowbore fluidically connected to a flowbore of the tubular and remaining open for fluid flow therethrough during both activated and non-activated states of the friction reduction sub. A friction reducer responsive to an indication of lockup of the tubular, wherein friction between the tubular and surrounding casing or borehole is reduced in an electrically activated state of the friction reduction sub. A method of reducing friction in a downhole tubular is also included.
    Type: Application
    Filed: September 10, 2012
    Publication date: March 13, 2014
    Applicant: BAKER HUGHES INCORPORATION
    Inventors: Gordon R. Mackenzie, Graeme K. Kelbie
  • Publication number: 20140060839
    Abstract: A fracturing tool includes a container structure, and a puncher charge arranged in the container structure, where the puncher charge if detonated is configured to extend an opening through the container structure without creating a perforation tunnel in a formation surrounding the well. An energetic material is to be initiated by detonation of the puncher charge, where the energetic material upon initiation creates an increased pressure in the well to perform fracturing of the formation.
    Type: Application
    Filed: November 13, 2012
    Publication date: March 6, 2014
    Applicant: North Schlumberger Oilfield Technologies (Xi'an) Co., Ltd.
    Inventors: Changshuan Wang, Yuanwen Yao, Senyuan Li, Guofu Feng, Feng (Rock) Wang, Baoxing Wang
  • Publication number: 20140027110
    Abstract: A plasma source for generating nonlinear, wide-band, periodic, directed, elastic oscillations in a fluid medium. The plasma source includes a plasma emitter having two electrodes defining a gap, a delivery device for introducing a metal conductor into the gap, and a high voltage transformer for powering the plasma emitter. A system and method for stimulating wells, deposits, and boreholes through controlled periodic oscillations generated using the plasma source. The system includes the plasma source, a ground control unit, and a support cable. In the method, the plasma source is submerged in the fluid medium of a well, deposit, or borehole and is used to create a metallic plasma in the gap. The metallic plasma emits a pressure pulse and shockwaves, which are directed into the fluid medium. Nonlinear, wide-band, periodic and elastic oscillations are generated in the fluid medium, including resonant oscillations by passage of the shockwaves.
    Type: Application
    Filed: July 25, 2013
    Publication date: January 30, 2014
    Inventors: P. G. Ageev, A. A. Molchanov
  • Publication number: 20130341026
    Abstract: A fracturing apparatus in a wellbore, having a housing with at least one injection port; an injection fluid supply interface to provide injection fluid for the hydraulic fracturing apparatus; and at least one high pressure combustor received within the housing. The housing further includes a combustible medium interface that is in fluid communication with the high pressure combustor, which is configured and arranged to provide repeated ignition cycles that include a combustion cycle that ignites the combustible medium and a fuel delivery cycle that delivers the combustible medium to the combustor, wherein pressure resulting from the combustion cycle forces the injection fluid out an injection port to cause fracturing in a portion of the earth around the wellbore.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 26, 2013
    Inventors: Joseph A. Alifano, Daniel Tilmont
  • Publication number: 20130341029
    Abstract: A system of fracturing a geological formation penetrated by a borehole. At least one borehole is drilled into or proximate the geological formation. An energetic charge is placed in the borehole. The energetic charge is detonated fracturing the geological formation.
    Type: Application
    Filed: June 26, 2012
    Publication date: December 26, 2013
    Applicant: Lawrence Livermore National Security, LLC
    Inventors: Jeffery James Roberts, Tarabay H. Antoun, lIya N. Lomov
  • Patent number: 8579022
    Abstract: An apparatus for deploying and activating a downhole tool activated by an explosive charge such as a drill pipe cutter or hole puncher. The apparatus includes a sealing member with an external wedge-shaped profile that forms a metal-to-metal partial seal with a profile at the top end of a pipe joint in a drill pipe string. The apparatus includes an impact force absorbing device that maintains a firing rod in a non-actuated position during impact of the apparatus. The apparatus includes a differential pressure piston that actuates at a pre-determined well bore pressure to release the firing rod to activate the downhole tool.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: November 12, 2013
    Inventors: Robert B. Cook, Glenn M. Walls
  • Patent number: 8561683
    Abstract: An apparatus and a method for cutting a wellbore tubular may include an upper section and a lower section mating at a juncture plane defined by a plane transverse to the longitudinal axis of the wellbore tubular. Each section may include a support plate having a passage, a liner positioned adjacent to the support plate, and an energetic material disposed between the support plate and the liner. An initiator having a shaft may be positioned in the passages of the upper section and the lower section.
    Type: Grant
    Filed: September 21, 2011
    Date of Patent: October 22, 2013
    Assignee: Owen Oil Tools, LP
    Inventors: Jeffrey D. Wood, Timothy Edward LaGrange, Matthew Clay
  • Patent number: 8555764
    Abstract: A downhole tool gun string assembly comprises a first perforating gun operable to generate a first pressure at a first location in a wellbore, wherein the first perforating gun comprises a first plurality of perforating charges; a second perforating gun operable to generate a second pressure at a second location in the wellbore, wherein the second pressure is different from the first pressure and the second perforating gun comprises a second plurality of perforating charges, and wherein at least one of the second plurality of perforating charges is operably associated with a secondary pressure generator, where the first perforating gun and the second perforating gun are configured to maintain a pressure at a selected location in the wellbore below a threshold when the first and second perforating guns are activated substantially concurrently.
    Type: Grant
    Filed: May 9, 2011
    Date of Patent: October 15, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Cam Van Le, Darren Ross Barlow, Jeffrey Alan Nelson
  • Patent number: 8534367
    Abstract: A method and apparatus for retro-fitting an explosive setting tool to a non-explosive setting tool is provided to eliminate the use of pyrotechnics when setting auxiliary tools. An explosive setting tool is retro-fitted by removing the pyrotechnic elements of the tool and replacing them with a conversion assembly including a hydraulic pump, thus converting the explosive tool into a non-explosive tool. The hydraulic pump provides the energy necessary to set the auxiliary tool. Once the auxiliary tool has been set, the non-explosive setting tool can be brought to the surface and reset using a resetting tool.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: September 17, 2013
    Inventor: James V. Carisella
  • Patent number: 8522863
    Abstract: A fracturing system for wells has a propellant charge having a known surface area for combustion, and a combustion rate as a function of pressure with lower combustion rates at lower pressures and rapidly increasing combustion rates at higher pressures separated by a knee in the combustion rate function. The propellant charge is initially sealed within a vessel as it is inserted into a well. The system also includes means for creating openings in the vessel on ignition of the propellant charge in the well, such that the openings have a known combined flow area selected to create a condition of choked flow of combustion gases from within the vessel and maintain pressures within the vessel below the knee in the combustion rate function.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: September 3, 2013
    Assignee: Propellant Fracturing & Stimulation, LLC
    Inventors: John P. Tiernan, Guy B. Spear, Don Landis
  • Publication number: 20130220613
    Abstract: A method and apparatus is described for modifying downhole wellbore pressure at the instant that an explosive event occurs. By a significant temporary reduction in wellbore pressure, for example, an explosive cutter will be able to cut through thicker pipe in a deep well with high hydrostatic pressure. A favorable transient wellbore pressure is achieved by the selective timing of implosion and explosion devices, to improve the performance of certain explosive tools when subsequently initiated, such as shaped charge explosive cutters, severing tools, setting tools and perforating guns. As part of the system, each implosion or explosion device is initiated by a detonator having a preprogrammed control unit with a preselected timing delay to take advantage of the temporarily lowered wellbore pressure.
    Type: Application
    Filed: February 7, 2013
    Publication date: August 29, 2013
    Applicant: PRJ Solutions, LLC
    Inventors: James E. Brooks, Nolan C. Lerche