With Disparate Below Ground Feature Patents (Class 166/55.1)
  • Patent number: 9689223
    Abstract: A system can include multiple explosive assemblies, each assembly comprising an outer housing, an explosive component rotatable relative to the housing, and a selective firing module which causes detonation of the component in response to a predetermined signal. A method can include assembling multiple explosive assemblies at a location remote from a well, installing a selective firing module, an electrical detonator and an explosive component in a connector, and connecting the connector to an outer housing, and then transporting the assemblies from the remote location to the well. A well perforating method can include assembling multiple perforating guns, each gun comprising a gun body, a perforating charge, and a selective firing module which causes detonation of the charge in response to a predetermined signal. The guns are installed in a wellbore, with the charge of each gun rotating relative to the respective gun body.
    Type: Grant
    Filed: April 1, 2011
    Date of Patent: June 27, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Timothy G. Schacherer, Marvin G. Batres, Tommy Thammavongsa, Randall S. Moore
  • Patent number: 9677363
    Abstract: A system can include multiple explosive assemblies, each assembly comprising an outer housing, an explosive component rotatable relative to the housing, and a selective firing module which causes detonation of the component in response to a predetermined signal. A method can include assembling multiple explosive assemblies at a location remote from a well, installing a selective firing module, an electrical detonator and an explosive component in a connector, and connecting the connector to an outer housing, and then transporting the assemblies from the remote location to the well. A well perforating method can include assembling multiple perforating guns, each gun comprising a gun body, a perforating charge, and a selective firing module which causes detonation of the charge in response to a predetermined signal. The guns are installed in a wellbore, with the charge of each gun rotating relative to the respective gun body.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: June 13, 2017
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Timothy G. Schacherer, Marvin G. Batres, Tommy Thammavongsa, Randall S. Moore
  • Patent number: 9482066
    Abstract: An apparatus for use in controlling first and second downhole tools includes a first cyclical indexing mechanism associated with a first downhole tool, and a second cyclical indexing mechanism associated with a second downhole tool, wherein the first indexing mechanism defines at least three sequential indexing positions within a cycle and the second indexing mechanism defines at least two sequential indexing positions within a cycle. The apparatus includes at least one actuator for actuating the first and second indexing mechanisms in response to a common stimulus to cause said first and second indexing mechanisms to advance between respective indexing positions so as to permit co-ordination of the operational states of the associated first and second downhole tools. The apparatus may be used for controlling first and second under reamers or for controlling an under reamer and a corresponding stabilizer.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: November 1, 2016
    Assignee: NOV DOWNHOLE EURASIA LIMITED
    Inventors: Alan MacKenzie, Matthew Shaw
  • Patent number: 9394768
    Abstract: Proposed devices provide for a jetting process of formation critical areas after opening up a column, increasing a perforator's punch power and reliability, significantly preventing accidents. A hydro-mechanical piercing-type perforator includes a casing containing a hydraulic cylinder with a pusher, an operating tool radially movable and capable of interaction with the pusher. The tool is designed as a puncher, placed on a piston (plunger), mounted in a camera. The tool includes at least one through hydraulic channel and a jet. The camera is hydraulically connected with the cylinder. A proposed method for operating the perforator includes supplying a working fluid to the perforator through the column, creating pressure of the working fluid for an extension mechanism actuating the tool, extending the tool by applying the pressure through a piston rod system, to the piston with the puncher, and applying pressure to the piston through the hydraulic cylinder to the chamber.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: July 19, 2016
    Assignee: Passerby Inc.
    Inventor: Marie Pasvandi
  • Patent number: 9334714
    Abstract: A tool assembly and method for completing a well are provided. The tool includes debris relief features that enable use in solids-laden environments, for example in the presence of sand. Forward and reverse circulation pathways to the isolated interval are present to allow clearing of debris from the wellbore annulus while the sealing device remains set against the wellbore.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: May 10, 2016
    Assignee: NCS Multistage, LLC
    Inventors: Marty Stromquist, Donald Getzlaf, Robert Nipper
  • Patent number: 9206682
    Abstract: A boring element of a ground boring device includes a housing having a receptacle, a transmitter arranged in the receptacle of the housing and supported in the receptacle for movement in a longitudinal-axial direction of the boring element, and a front buffer connecting the transmitter with the housing. The transmitter moves towards a rear in the receptacle as a result of a deformation of the front buffer, when a rear percussive impulse is applied to the boring element, without the transmitter coming directly into contact with another part of the boring element.
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: December 8, 2015
    Assignee: TRACTO-TECHNIK GMBH & CO. KG
    Inventors: Franz-Josef Püttmann, Peter Grass, Gerhard Völkel, Andreas Riekes, Frank Prutti
  • Patent number: 9097109
    Abstract: A device for drilling a hole in a well tubular and for subsequent injection of a fluid or fluid mixture into an annular space or formation surrounding the well tubular. The device comprises a housing and a drill bit assembly arranged inside the housing. In the drill bit assembly, a drill bit with cutting edges and grooves extending along its outside surface, is arranged. The device further comprises rotation means being capable of rotating the drill bit assembly and a fluid supply for supplying a fluid or fluid mixture to the grooves of the rotating drill bit. A seal is surrounding the drill bit and capable of sealing the device against the inner surface of the well tubular.
    Type: Grant
    Filed: November 9, 2010
    Date of Patent: August 4, 2015
    Assignee: MAERSK OLIE OG GAS A/S
    Inventors: Edo Boekholtz, Ulger Gokhan, Klaus Wahrmann
  • 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: 20150129219
    Abstract: Systems and methods for stimulating a plurality of zones of a subterranean formation to increase production of reservoir fluids therefrom. The subterranean formation contains a well that includes a liner that defines a liner conduit, and the systems and methods include stimulating the plurality of zones with a stimulation assembly that is present within the liner conduit without requiring removal of the stimulation assembly from the liner conduit. The stimulation assembly includes a perforation device, which is configured to selectively form one or more perforations in a plurality of portions of the liner, and a resettable sealing device, which is configured to fluidly isolate the plurality of portions of the liner from a plurality of respective downhole portions of the liner. The fluid isolation provides for selective introduction of a stimulant fluid to a selected zone of the subterranean formation that is associated with a corresponding portion of the liner.
    Type: Application
    Filed: June 12, 2013
    Publication date: May 14, 2015
    Inventors: Manh V. Phi, Stuart R. Keller, Chris E. Shuchart
  • Publication number: 20150129203
    Abstract: There are provided high power laser perforation, hydraulic fracturing systems, tools and methods for the stimulation and recovery of energy sources, such as hydrocarbons, from a formation. These systems, tools and methods provide predetermined laser beam energy patterns, to provide for the down hole volumetric removal of custom geometries of materials, sealing of perforations, reperorations, refractures and other downhole actives.
    Type: Application
    Filed: November 15, 2013
    Publication date: May 14, 2015
    Applicant: FORO ENERGY, INC.
    Inventors: Paul D. Deutch, Fred C. Kellermann, Tom Zimmerman, John Yearwood, Mark S. Zediker, Ronald A. De Witt, Brian O. Faircloth, John Ely
  • Publication number: 20150101790
    Abstract: Certain aspects and features of the present invention are directed to a safety joint that can be disposed in a wellbore through a fluid-producing formation. The safety joint can include a body configured to be disposed in the wellbore, a primary retention mechanism, a secondary retention mechanism, and a time delay mechanism. The primary retention mechanism can be coupled to the body and can prevent the actuation of the safety joint. The secondary retention mechanism can be coupled to the body and can prevent the actuation of the safety joint in response to the primary retention mechanism allowing the actuation of the safety joint. The time delay mechanism can generate a time delay between the primary retention mechanism allowing the actuation of the safety joint and the secondary retention mechanism preventing the actuation of the safety joint.
    Type: Application
    Filed: July 25, 2012
    Publication date: April 16, 2015
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Reid Elliott Zevenbergen, Paul David Ringgenberg, Russell S. Haake
  • Publication number: 20150090453
    Abstract: Systems and methods for secondary sealing of a perforation present within a wellbore casing associated with a primary sealing agent. The wellbore casing defines a casing conduit present within a wellbore that extends between a surface region and a subterranean formation. The systems and methods include a sealing apparatus that retains a charge of sealing material with a secondary sealing agent and is conveyed within the casing conduit to within a threshold distance of the perforation. The systems and methods further include selectively releasing the charge of sealing material from the sealing apparatus, such as by a release mechanism, to deliver the charge of sealing material to the perforation, to supplement the primary sealing agent (and/or a seal formed thereby), and/or to decrease a flow rate of a fluid from the casing conduit through the perforation.
    Type: Application
    Filed: April 15, 2013
    Publication date: April 2, 2015
    Inventors: Randy C. Tolman, Renzo M. Angeles Boza, Kris J. Nygaard, Christian S. Mayer, Pavlin B. Entchev
  • Publication number: 20150068723
    Abstract: A plug and shoot assembly including a perforating gun to perforate a subterranean wellbore, a setting tool to install a plug within the wellbore, and an adapter configured to connect to each of the perforating gun and the setting tool. The adapter includes a single outer housing, the outer housing further including a first end to directly connect to the perforating gun, a second end to directly connect to the setting tool, and an internal passage extending between the first and second ends of the outer housing. In addition, the adapter includes a diode housing disposed within the internal passage and configured to receive a diode member, and an internal contact assembly also disposed within the internal passage. The internal contact assembly is configured to route an electrical signal to cause the setting tool to install a plug within the wellbore.
    Type: Application
    Filed: September 12, 2013
    Publication date: March 12, 2015
    Applicant: G&H DIVERSIFIED MANUFACTURING LP
    Inventor: Joe Noel WELLS
  • Publication number: 20150060040
    Abstract: A downhole cutting tool having a jetted top bushing. The cutting tool has a plurality of blades which rotate from a first, retracted position to a second, extended position. In this extended position, cutting surfaces on the blades contact the tubular wall, and rotation of the cutting tool enables cutting through the tubular. The blades are rotated by an internal piston which pushes down on portions of the blades in response to fluid flow through the tool. A plurality of fluid outlets or jets are positioned above (uphole from) the blades, whereby a portion of the fluid being pumped downhole flows out of the jets, into the annulus and onto the blades, keeping them clean and enhancing lifting of cuttings to the surface. The fluid outlet flow area may be easily changed, without disassembly of the cutting tool, by changing jets to different flow areas, or blanked off if desired.
    Type: Application
    Filed: February 22, 2013
    Publication date: March 5, 2015
    Inventor: David J. Ruttley
  • Patent number: 8967257
    Abstract: Methods and apparatus are presented for a “disappearing” perforator gun assembly. In a preferred method of perforating a well casing, inserted into the well casing is a tubing conveyed perforator having an outer tubular made from a metallic glass alloy having high strength and low impact resistance. An inner structure is positioned within the outer tubular and holds one or more explosive charges. Upon detonating the explosive charges, the outer tubular is fragmented. The inner structure is preferably also substantially destroyed upon detonation of the one or more explosive charges. For example, the inner structure can be made from a combustible material, corrodible, dissolvable, etc., material. A disintegration-enhancing material is optionally positioned between the outer tubular and the inner structure. Additional embodiments are presented having gun housings which dematerialize upon detonation of the charges.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: March 3, 2015
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Javier Fadul, Paul Herman, Paul Ringgenberg, Randy Moore, Michael Fripp, Dennis Crowdis, John Hales, Bryan Powell
  • Patent number: 8950480
    Abstract: A downhole tools deployment apparatus is disclosed. In an embodiment, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics compartment, a tool attachment portion, and a first flow through core. The housing is preferably configured for sliding communication with the well casing. The hermetically sealed electronics compartment secures a processor and a location sensing system, which communicates with the processor while interacting exclusively with features of the well casing to determine the location of the housing within the well casing. The embodiment further includes a well plug affixed to the tool attachment portion, the well plug includes a second flow through core capped with a core plug with a core plug release mechanism, which upon activation provides separation between the second flow through core and the core plug, allowing material to flow through said first and second flow through cores.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 10, 2015
    Assignee: ExxonMobil Upstream Research Company
    Inventor: Dennis A. Strickland
  • Publication number: 20150027695
    Abstract: A system and method for forming a cavern in a formation beyond a cased wellbore utilizes a locator to position a perforating gun in the wellbore for forming axially aligned, spaced-apart perforations through the casing. The locator has a stationary portion, run in and anchored in the wellbore below a zone of interest. The perforating guns have a moveable portion of the locator at a downhole end and are run in and coupled with the stationary portion. Where two or more guns are used to form the perforations, the guns are indexed relative to one another for forming the offset perforations. The guns are tripped from the wellbore and a wash tool having a moveable portion of the locator at a downhole end is run in and coupled in the wellbore. The locator acts to delimit a reciprocation of the wash tool along the space-apart perforations for delivering a non-abrasive fluid therethrough for forming the cavern.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 29, 2015
    Inventors: Bruce MITCHELL, Richard BENNETT
  • Publication number: 20150013972
    Abstract: The invention provides an apparatus and method of using the apparatus for surface confirmation of opening of downhole ports in a downhole environment. The apparatus includes a tubular region that has an inner diameter. The tubular region includes at least two production ports and at least one non-production port. The non-production port includes a housing that has at least one chemical tracer. The apparatus also includes a cutter operable for opening the production ports and non-production port. The apparatus further includes a launcher for launching the cutter and a receiver for receiving the cutter.
    Type: Application
    Filed: July 12, 2013
    Publication date: January 15, 2015
    Inventor: Majed N. Al-Rabeh
  • Publication number: 20150007993
    Abstract: The lowside of a casing joint is protected from wear while milling a casing exit for a lateral borehole. The casing joint is coupled to a casing string and is made of a material that is softer than that of the casing string. A whipstock assembly is arranged within the casing joint and has a deflector surface operable to direct a drilling assembly into a sidewall of the casing joint to create the casing exit. A wear sleeve is coupled to and extends axially from the whipstock assembly, the wear sleeve defining a throat that extends axially along the axial length of the wear sleeve and transitions into the deflector surface. The axial length of the wear sleeve extends beyond a point of contact where the drilling assembly would otherwise engage the lowside of the casing joint.
    Type: Application
    Filed: February 24, 2012
    Publication date: January 8, 2015
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Joseph DeWitt Parlin, Espen Dahl
  • Patent number: 8893785
    Abstract: A method of determining an azimuthal orientation of a well tool relative to a line in a well can include connecting at least one acoustic source to the well tool, the acoustic source having a known azimuthal orientation relative to the well tool, and detecting at least one acoustic signal transmitted from the acoustic source to an acoustic sensor, the acoustic sensor having a known azimuthal orientation relative to the line. A system for determining an azimuthal orientation of one or more lines relative to a well tool in a wellbore can include at least one acoustic source having a known azimuthal orientation relative to the well tool, and an optical waveguide connected to a distributed acoustic sensing instrumentation, the waveguide having a known azimuthal orientation relative to the lines, and in which the distributed acoustic sensing instrumentation detects acoustic signals transmitted from the acoustic source to the waveguide.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: November 25, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Neal G. Skinner, Michael L. Fripp
  • Publication number: 20140231064
    Abstract: An insert for perforating a subterranean formation sealingly engages a port in a production casing run into a wellbore intersecting the formation. The insert has a core where in a first mode it prevents fluid passage through the insert, and a second mode where the core disengages from the insert upon a treatment fluid reaching a threshold pressure in the casing, and ejects from the insert as a projectile to initiate and contribute to the fracture and stimulation of the formation by the pressurized treatment fluid exiting the port. The insert has a chamber which is filled with a gel that prevents wellbore cement from setting and is covered by a perforated debris shield that permits the equalization of pressure between the chamber and the annulus between the casing and wellbore.
    Type: Application
    Filed: July 30, 2012
    Publication date: August 21, 2014
    Applicant: TEN K ENERGY SERVICES LTD.
    Inventors: Michael Kent, David Donnelly
  • Publication number: 20140216744
    Abstract: In some general aspects, methods for intersecting a first, cased well bore include drilling a second well bore that has a distal end proximal to the first, cased well bore to be intersected, disposing a mill guiding device in the second well bore near a casing of the first, cased well bore, the mill guiding device being configured to direct a mill of a milling assembly away from a central axis of the second well bore and towards the first, cased well bore, inserting the milling assembly into the second well bore, operating the mill of the mill assembly and guiding the milling assembly along the mill guide and into the casing of the first well bore, and removing material from the casing of the first well bore until the first, cased well bore and the second well bore are fluidly connected.
    Type: Application
    Filed: July 3, 2012
    Publication date: August 7, 2014
    Applicant: HALLIBURTON ENERGY SERVICES, INC.
    Inventor: Joseph DeWitt Parlin
  • Publication number: 20140158350
    Abstract: An apparatus for flowing a tool string along a wellbore tubular may include a flow restrictor having a diametrically expanded position and a diametrically retracted position. The flow restrictor may include at least one sealing element that sealingly engages the wellbore tubular when in the diametrically expanded position. The apparatus also includes an actuator configured to move the at least one sealing element to at least a position intermediate of the open and the closed position. The actuator may be responsive to a control signal that is generated locally or transmitted from a remote location.
    Type: Application
    Filed: February 19, 2013
    Publication date: June 12, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Homero C. Castillo, Otto N. Fanini, Steven R. Radford, Jeffrey B. McMeans, John G. Evans
  • Patent number: 8678087
    Abstract: Systems, apparatuses, and methods for producing fluids from a wellbore wherein fluids may be communicated through an aperture in a wall of the wellbore. A laser can then be used to seal the aperture in the wall of the wellbore. The wall of the wellbore may include a casing, and the laser can be used to seal the aperture in the wall of the wellbore by fusing apertures in the casing shut. Fusing the aperture in the casing can involve heating the casing such that opposite sides of the aperture fuse together or can involve selectively laser sintering fusible powders. The wall of the wellbore can be an open hole and using a laser to seal the aperture can include sealing the aperture in side surfaces of the open hole by glazing the surface of hole extending into a subterranean formation.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: March 25, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Roger L. Schultz, Loyd E. East, Harold G. Walters, Billy Wilson McDaniel, Mohamed Y. Soliman, Neal Gregory Skinner
  • Publication number: 20140060801
    Abstract: A device is associated with a downhole tool to control the weight that can be set down on the tool while the tool is operating. A shroud is secured to the string that supports the tool with interior modular biasing components that for run in extend the tool past the shroud. Upon encountering a support for the tool, further set down weight compresses the biasing components for a predetermined stroke length delineated by the shroud landing on a support. If the tool is a mill, its operation takes place under the biasing force as the mill advances into the piece being cut or milled under a predetermined pressure. When the mill reaches full extension form the shroud the process can be repeated until the milling is complete. The shroud also centralizes the mill during milling.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 6, 2014
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: David W. Coleman, Benny J. Vincent
  • Publication number: 20140060830
    Abstract: A method for treating a well includes positioning a seat within the well that is capable of catching an obstruction which will prevent flow of fluid downstream of the seat. According to one embodiment of the invention, the seat is formed by expanding a sleeve with a ring positioned around its periphery or as a subsequent step in the process. As the sleeve is expanded over the ring, the seat is formed. Once the seat is formed, an obstruction in the form of a ball or dart is dropped down to the seat. In another embodiment the sleeve acts as a stop for a secondary valve seat which catches the obstruction. The casing uphole of the seat is perforated so that fluid under pressure will enter the formation surrounding the perforations. The process is particularly useful for fracing a formation in a horizontal well where numerous stages are required to complete the stimulation of the well. There is also potential application in vertical wells.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 6, 2014
    Applicant: Texian Resources
    Inventor: Douglas N. Love
  • Publication number: 20140014343
    Abstract: Systems and methods of managing cuttings and debris resulting from milling a casing exit are disclosed. An exemplary milling system includes a mill arranged within a shroud and configured to translate axially with respect to the shroud once detached therefrom, a guide block is coupled to a distal end of the mill and supports the mill while the mill forms the casing exit. A guide support arranged within the shroud defining one or more longitudinal channels configured to accumulate cuttings and debris. The shroud defines a plurality of perforations arranged as first and second axial perforation sets, and a sleeve is arranged therein and defines one or more piston guides that align one or more pistons with either the first or second axial perforation sets, depending on the amount of cuttings and debris.
    Type: Application
    Filed: April 15, 2013
    Publication date: January 16, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Dan Saurer
  • Patent number: 8584772
    Abstract: A shaped charge includes a charge case; an explosive disposed inside the charge case; and a liner for retaining the explosive in the charge case, wherein the liner comprises a material reactive with a component of an earth formation. A method for perforating in a well includes disposing a perforating gun in the well, wherein the perforating gun comprises a shaped charge having a charge case, an explosive disposed inside the charge case, and a liner for retaining the explosive in the charge case, wherein the liner includes a material that can react with a component of an earth formation; detonating the shaped charge to form a perforation tunnel in a formation zone; and allowing the material comprising the liner to react with the component of the earth formation.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: November 19, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Wenbo Yang, Lawrence A. Behrmann
  • Patent number: 8584763
    Abstract: A wellbore apparatus includes a connector sub assembly having a body, the body having a first end adapted to couple to a first perforating sub component and a second, axially opposed end adapted to couple to a second perforating sub component. The connector sub body defines a cavity proximate the second end of the connector sub body; and a flow path in fluid communication with the cavity and a location exterior to the wellbore apparatus. The apparatus includes a valve residing in the flow path and actuatable to block or allow fluid flow from the cavity, through the flow path, to the location exterior to the wellbore apparatus.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: November 19, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: John H Hales, John D Burleson
  • Patent number: 8561697
    Abstract: An apparatus for use in deployment of downhole tools is disclosed. Preferably, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics compartment, a tool attachment portion, and a first flow through core. The housing is preferably configured for sliding communication with the well casing. The hermetically sealed electronics compartment secures a processor and a location sensing system, which communicates with the processor while interacting exclusively with features of the well casing to determine the location of the housing within the well casing. A preferred embodiment further includes a well plug affixed to the tool attachment portion, the well plug includes a second flow through core capped with a core plug with a core plug release mechanism, which upon activation provides separation between the second flow through core and the core plug, allowing material to flow through said first and second flow through cores.
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: October 22, 2013
    Assignee: Intelligent Tools IP, LLC
    Inventor: Dennis A. Strickland
  • 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: 8528643
    Abstract: Methods, systems, and devices related to downhole wellbore operations such as drilling and completing wells in an earth formation include a laser device. For example, a method may include characterizing a subterranean formation, selecting an orientation of an aperture based on characteristics of the subterranean formation, and using a laser to form an aperture of the selected orientation in the wall of the wellbore.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: September 10, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Roger L. Schultz, Loyd E. East, Harold G. Walters, Billy Wilson McDaniel, Mohamed Y. Soliman, Neal Gregory Skinner
  • Patent number: 8490686
    Abstract: A method of mitigating perforating effects produced by well perforating can include causing a shock model to predict perforating effects for a proposed perforating string, optimizing a compliance curve of at least one proposed coupler, thereby mitigating the perforating effects for the proposed perforating string, and providing at least one actual coupler having substantially the same compliance curve as the proposed coupler. A well system can comprise a perforating string including at least one perforating gun and multiple couplers, each of the couplers having a compliance curve, and at least two of the compliance curves being different from each other. A method of mitigating perforating effects produced by well perforating can include interconnecting multiple couplers spaced apart in a perforating string, each of the couplers having a compliance curve, and selecting the compliance curves based on predictions by a shock model of shock generated by the perforating string.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: July 23, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: John P. Rodgers, Marco Serra, Timothy S. Glenn, John D. Burleson
  • Patent number: 8464794
    Abstract: Methods, systems, and devices related to downhole wellbore operations, such as drilling and completing wells in an earth formation, include a laser device. A first portion of a subterranean formation can be characterized, the first portion being at a first location. A first orientation of an aperture can be selected based on the characteristics of the first portion of the subterranean formation. A laser beam can be used to create the aperture having the first orientation. A second portion of the subterranean formation can be characterized, the second portion being at a second location different from the first location. A second orientation, different from the first orientation, can be selected based on the characteristics of the second portion of the subterranean formation. The laser beam can be moved to the second location and can be used to form the aperture having the second orientation.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: June 18, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Roger L. Schultz, Loyd E. East, Harold G. Walters, Billy W. McDaniel, Mohamed Y. Soliman, Neal G. Skinner
  • Patent number: 8393393
    Abstract: A method of mitigating perforating effects produced by well perforating can include causing a shock model to predict perforating effects for a proposed perforating string, optimizing a compliance curve of at least one proposed coupler, thereby mitigating the perforating effects for the proposed perforating string, and providing at least one actual coupler having substantially the same compliance curve as the proposed coupler. A well system can comprise a perforating string including at least one perforating gun and multiple couplers, each of the couplers having a compliance curve, and at least two of the compliance curves being different from each other. A method of mitigating perforating effects produced by well perforating can include interconnecting multiple couplers spaced apart in a perforating string, each of the couplers having a compliance curve, and selecting the compliance curves based on predictions by a shock model of shock generated by the perforating string.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: March 12, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: John P. Rodgers, Marco Serra, Timothy S. Glenn, John D. Burleson
  • Patent number: 8381822
    Abstract: A wellbore apparatus includes a connector sub assembly having a body, the body having a first end adapted to couple to a first perforating sub component and a second, axially opposed end adapted to couple to a second perforating sub component. The connector sub body defines a cavity proximate the second end of the connector sub body; and a flow path in fluid communication with the cavity and a location exterior to the wellbore apparatus. The apparatus includes a valve residing in the flow path and actuatable to block or allow fluid flow from the cavity, through the flow path, to the location exterior to the wellbore apparatus.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: February 26, 2013
    Assignee: Halliburton Energy Services, Inc.
    Inventors: John H. Hales, John D. Burleson
  • Publication number: 20130037268
    Abstract: A method and apparatus for wellbore perforation in which a laser beam at a downhole location of a wellbore is directed to a target area of a wellbore wall to be perforated. The laser beam is guided through a longitudinally extensible nozzle onto the target area and a purge fluid is introduced into the longitudinally extensible nozzle, thereby longitudinally extending the nozzle toward the target area. The purge fluid in the longitudinally extensible nozzle is passed through a purge fluid outlet of the nozzle onto the target area, thereby removing debris from the target area generated by the laser beam.
    Type: Application
    Filed: August 10, 2011
    Publication date: February 14, 2013
    Applicant: GAS TECHNOLOGY INSTITUTE
    Inventors: Mark S. KLEEFISCH, Iraj SALEHI
  • Patent number: 8365814
    Abstract: A perforating system, comprising a perforating gun with shaped charges, and a pre-detonation orientation apparatus and method. The pre-detonation orientation device comprises an orientation device in communication with the firing means of the perforating gun. Detonation of the shaped charges can be contingent upon the perforating gun orientation.
    Type: Grant
    Filed: September 20, 2007
    Date of Patent: February 5, 2013
    Assignee: Baker Hughes Incorporated
    Inventors: Freeman L. Hill, Tim W. Sampson, John D. Macpherson
  • Publication number: 20130025844
    Abstract: An apparatus for use in deployment of downhole tools is disclosed. Preferably, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics compartment, a tool attachment portion, and a first flow through core. The housing is preferably configured for sliding communication with the well casing. The hermetically sealed electronics compartment secures a processor and a location sensing system, which communicates with the processor while interacting exclusively with features of the well casing to determine the location of the housing within the well casing. A preferred embodiment further includes a well plug affixed to the tool attachment portion, the well plug includes a second flow through core capped with a core plug with a core plug release mechanism, which upon activation provides separation between the second flow through core and the core plug, allowing material to flow through said first and second flow through cores.
    Type: Application
    Filed: September 24, 2012
    Publication date: January 31, 2013
    Applicant: INTELLIGENT TOOLS IP, LLC
    Inventor: Intelligent Tools IP, LLC
  • Patent number: 8336437
    Abstract: A perforating gun assembly for use in a wellbore. The perforating gun assembly includes a carrier gun body and a charge holder disposed within the carrier gun body. A plurality of shaped charges are supported within the carrier gun body. A secondary pressure generator is operably associated with at least one of the shaped charges. The secondary pressure generator optimizes the wellbore pressure regime immediately after detonation of the shaped charges by controlling the dynamic underbalance created by the empty gun chambers to prevent excessive dynamic underbalance which may detrimentally effect the perforating operation.
    Type: Grant
    Filed: July 30, 2009
    Date of Patent: December 25, 2012
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Darren Ross Barlow, Cam Van Le, James Marshall Barker
  • Publication number: 20120298363
    Abstract: A perforating system that transfers a detonation wave between adjacent perforating guns by converting shockwave energy to electrical energy. An explosive is provided on an end of a detonating cord that is coupled to shaped charges, so that a detonation wave traveling in the detonation cord will initiate detonation in the shaped charges and then in the high explosive. The explosive is disposed adjacent a pair of members that are energized so that a magnetic field is formed between the members. When the explosive detonates, the resulting shock wave pushes one of the members into the space between the members to compress the magnetic field. Compressing the magnetic field produces an electrical potential usable to initiate a detonation wave in another detonating cord for perpetuating the detonation wave along the perforating system.
    Type: Application
    Filed: May 26, 2011
    Publication date: November 29, 2012
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Tim W. Sampson, William Harvey
  • Patent number: 8302693
    Abstract: A free falling drop sub carries an explosive tool such as a shaped charge pipe cutter or well perforator. The drop sub includes an aperture plugging element to isolate an upper pipe string from a lower pipe string. An upper pipe string fluid pressure actuated valve element retained by shear pins is released to admit the upper string pressure against a pressure displaced firing pin. Displacement of the firing pin initiates detonation of the explosive tool.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: November 6, 2012
    Inventors: Don Umphries, Gabe Williger
  • Patent number: 8276656
    Abstract: A perforating gun, according to one or more aspects of the present disclosure, comprises a loading tube and a plurality of charges mounted in the loading tube with at least a portion of the plurality of charges being tilted relative to an axis of the loading tube. Wherein the plurality of tilted charges are tilted relative to the axis to create a selected reactive dynamic force on the perforating gun to counter a detrimental force on the perforating gun in response to detonation of the plurality of charges.
    Type: Grant
    Filed: December 21, 2007
    Date of Patent: October 2, 2012
    Assignee: Schlumberger Technology Corporation
    Inventor: Kenneth R. Goodman
  • Patent number: 8272439
    Abstract: An apparatus for use in deployment of downhole tools is disclosed. Preferably, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics compartment, a tool attachment portion, and a first flow through core. The housing is preferably configured for sliding communication with the well casing. The hermetically sealed electronics compartment secures a processor and a location sensing system, which communicates with the processor while interacting exclusively with features of the well casing to determine the location of the housing within the well casing. A preferred embodiment further includes a well plug affixed to the tool attachment portion, the well plug includes a second flow through core capped with a core plug with a core plug release mechanism, which upon activation provides separation between the second flow through core and the core plug, allowing material to flow through said first and second flow through cores.
    Type: Grant
    Filed: March 23, 2012
    Date of Patent: September 25, 2012
    Assignee: Intelligent Tools IP, LLC
    Inventor: Dennis A. Strickland
  • Patent number: 8210105
    Abstract: A method for detonation of a plug device in a fluid environment is described, which is in contact with a body, such as an ignition pellet, and it is characterized in that a number of pressure increases are exerted against the plug device, whereby each pressure increase causes a movement of a piston (10) which is radially arranged in a casing (12), which causes the casing (12) to move a fixed distance inward in the plug device with each pressure increase, up until the displacement of the casing (12) causes the piston to be displaced into a cavity (38), and the fluid environment enters the plug device via an inlet. Also described is a plug device which is in contact with a body, such as an ignition pellet, where the plug device is arranged to detonate after a number of pressure increases that are exerted against the plug device.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: July 3, 2012
    Assignee: TCO AS
    Inventor: Stig Ove Bjørgum
  • Publication number: 20120132439
    Abstract: Presented is a system and method for disconnecting a plurality of wireline tools from a string of wireline tools while maintaining operation of the wireline tools remaining with the string of wireline tools. The disconnection is non-destructive and allows a reconnection of the disconnected tools after retrieval from the well. The system also enables testing of the disconnection mechanism before deploying the wireline tool string into the well.
    Type: Application
    Filed: November 30, 2010
    Publication date: May 31, 2012
    Applicant: SONDEX WIRELINE LIMITED
    Inventors: James David RATCLIFFE, Timothy GILL, Peter WITHERS, Lee STROBEL, Graham CHADWICK
  • Patent number: 8162051
    Abstract: An apparatus for use in deployment of downhole tools is disclosed. Preferably, the apparatus includes at least an in-ground well casing, a housing providing a hermetically sealed electronics compartment, a tool attachment portion, and a first flow through core. The housing is preferably configured for sliding communication with the well casing. The hermetically sealed electronics compartment secures a processor and a location sensing system, which communicates with the processor while interacting exclusively with features of the well casing to determine the location of the housing within the well casing. A preferred embodiment further includes a well plug affixed to the tool attachment portion, the well plug includes a second flow through core capped with a core plug with a core plug release mechanism, which upon activation provides separation between the second flow through core and the core plug, allowing material to flow through said first and second flow through cores.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: April 24, 2012
    Assignee: Intelligent Tools IP, LLC
    Inventor: Dennis A. Strickland
  • Patent number: 8157022
    Abstract: An apparatus string for use in a wellbore has a plurality of activation modules having first and second ends and containing devices to be activated/initiated downhole. An apparatus string also has a plurality of initiator modules where at least initiator is operatively connected to each activation module and is addressable. Each initiator module may have a safety initiator which when the initiator module is addressed initiates the firing of the shaped charges in the gun module to which it is operatively connected. A wireless transmitter is operatively connected in and integral to the apparatus string for use in transmitting signals to address any initiator module in the apparatus string.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: April 17, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Michael J. Bertoja, Luis Ochoa, Kenneth R. Goodman
  • Patent number: 8146669
    Abstract: A method for installing a horizontal or inclined subsurface heater includes placing a heating section of a heater in a horizontal or inclined section of a wellbore with an installation tool. The tool is uncoupled from the heating section. A lead in section is mechanically and electrically coupled to the heating section of the heater. The lead-in section is located in an angled or vertical section of the wellbore.
    Type: Grant
    Filed: October 13, 2008
    Date of Patent: April 3, 2012
    Assignee: Shell Oil Company
    Inventor: Stanley Leroy Mason
  • Patent number: 8136584
    Abstract: A tubing punch and setting tool (TPST), operating on a single run for improved well bore intervention. The tool includes a setting tool for connecting to and setting a reference tool in a tubing string, a punch tool for punching holes in the tubing string wall, and actuation means to trigger the sequencing of the setting tool and the punch tool. The tool can be run on wireline, e-line or coiled tubing and allows a reference tool to be run and set on the same trip as punching holes in the tubing string. The reference tool can be an anchor tool. With the distance known accurately between the anchor tool and the punched holes, a shortened retrofit gas lift straddle can be deployed.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: March 20, 2012
    Assignee: Red Spider Technology Limited
    Inventors: William Stephen Burnett, Irvine Cardno Brown