Receiver Removable Through Below-ground Tool Shaft Patents (Class 175/246)
  • Patent number: 9689222
    Abstract: Implementations of the present invention include a core barrel assembly including external fluid pathways extending generally axially long the outer surface of the core barrel assembly. The one or more external fluid pathways can allow for increased fluid flow around a latch mechanism. The increased fluid flow around the latch mechanism can allow the core barrel assembly to travel faster within the drill string, can allow drilling fluid to pass by the latch mechanism when engaged. Implementations of the present invention also include drilling systems including external fluid pathways, and methods of retrieving a core sample using such drilling systems.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: June 27, 2017
    Assignee: LONGYEAR TM, INC.
    Inventor: Christopher L. Drenth
  • Patent number: 9528337
    Abstract: A bushing for positioning within a core barrel assembly during an up-hole drilling operation. The bushing has a wall with an inner surface and an outer surface. The inner surface defines an inlet, an outlet, and a central bore of the bushing. The central bore surrounds a longitudinal axis of the bushing and extends between the inlet and the outlet. The outer surface has a first portion positioned proximate the inlet and a second portion positioned proximate the outlet. The first portion of the outer surface of the wall projects outwardly from the second portion of the outer surface relative to the longitudinal axis of the bushing such that the first portion of the outer surface defines opposed first and second shoulder surfaces extending substantially perpendicularly relative to the longitudinal axis. Core barrel head assemblies including such bushings are also described.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: December 27, 2016
    Assignee: LONGYEAR TM, INC.
    Inventor: George Iondov
  • Patent number: 9328608
    Abstract: Implementations include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. Implementations of the present invention also include drilling systems including such driven latch mechanisms, and methods of retrieving a core sample using such drilling systems.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: May 3, 2016
    Assignee: Longyear TM, Inc.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Publication number: 20150114723
    Abstract: A latch assembly for a diamond core drill wire line. Included is a cylindrical main body having a main body interior, an outer wall, a main body end and a latch end. A ball hole is defined through the main body. An inner shaft ball lock is contained within the main body. A spring is disposed on the inner shaft ball lock. A main body top is attached to the main body end to contain the inner shaft ball lock within the main body and limit upstream movement of the inner shaft ball lock. A steel ball is then captured between the inner shaft ball lock and the outer wall of the main body such that upon axial movement of the inner shaft ball lock the ball penetrates up through the outer wall to extend past the main body to thereby latch onto an outer tube assembly.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 30, 2015
    Inventor: Leroy G. Hetager
  • Patent number: 8770319
    Abstract: An assembly may be disposed within a drill string. The assembly may be moved within and along the drill string using hydraulic pressure. A core sample may be collected within the assembly, and the assembly may be retrieved to obtain the core sample. The assembly may include a seal that may be configured to form a seal with different inner diameters of a variable-diameter drill rod of the drill string.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: July 8, 2014
    Assignee: Longyear TM, Inc.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Patent number: 8770320
    Abstract: A core lifter may be used in a drilling system. An exterior surface of the core lifter may include a plurality of longitudinally-oriented recesses. The core lifter may include a raised contact feature that may extend inwardly away from a gripping surface of the core lifter. The core lifter may include a flared skirt configured to limit movement of the core lifter relative to a core lifter case. The core lifter may be formed via stamping a sheet of material.
    Type: Grant
    Filed: November 2, 2010
    Date of Patent: July 8, 2014
    Assignee: Longyear TM, Inc.
    Inventors: Christopher L. Drenth, Hongyan Zhang
  • Publication number: 20140174828
    Abstract: Drilling systems and methods for deploying a latch mechanism upon reaching a drilling position. The drilling systems and methods permit spinning of a drill string to cause a core barrel head assembly to spin through the frictional mating of a landing shoulder of the head assembly and a landing ring of an outer tube assembly. The spinning of the drill string induces a centrifugal and/or radial force that acts on the latch mechanism to overcome the frictional retention forces acting on the latch mechanism, thereby permitting deployment of the latch mechanism.
    Type: Application
    Filed: February 28, 2014
    Publication date: June 26, 2014
    Inventors: Charles Ernest Muntz, Christopher L. Drenth, George Iondov
  • Patent number: 8720606
    Abstract: A locking mechanism for locking an insertable device relative to an outer tube of a ground drill comprises at least one latch, which is arranged to releasably retain the insertable device in a substantially fixed axial position relative to the outer tube. The locking mechanism comprises a cam and a cam follower, which are arranged to control a radial position of the latch. The locking system may be used in a ground drill system.
    Type: Grant
    Filed: February 17, 2009
    Date of Patent: May 13, 2014
    Assignee: Sandvik Intellectual Property AB
    Inventors: David Mildren, Cameron Westwood
  • Patent number: 8668029
    Abstract: A head assembly includes a body, a spearhead operatively associated with the body and configured to translate axially relative to the body, and at least one latch operatively associated with the spearhead and the body. The latch is configured to move between an extended position and a retracted position relative to the body in response to axial translation of the spearhead relative to the body. In an extended position, the latch covers more than 25% of the circumference of the body adjacent the latches.
    Type: Grant
    Filed: September 11, 2012
    Date of Patent: March 11, 2014
    Assignee: Longyear TM, Inc.
    Inventors: Robert E. Able, Thomas J. Oothoudt
  • Publication number: 20130192901
    Abstract: A bushing for positioning within a core barrel assembly during an up-hole drilling operation.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 1, 2013
    Applicant: LONGYEAR TM, INC.
    Inventor: Longyear TM, Inc.
  • Patent number: 8485280
    Abstract: Implementations of the present invention include a core barrel assembly having a driven latch mechanism. The driven latch mechanism can lock the core barrel assembly axially and rotationally relative to a drill string. The driven latch mechanism can include a plurality of wedge members positioned on a plurality of driving surfaces. Rotation of the drill string can cause the plurality of wedge members to wedge between an inner diameter of the drill string and the plurality of driving surfaces, thereby rotationally locking the core barrel assembly relative to the drill string. The driven latch mechanism can further include a refracted groove adapted to lock the plurality of wedge members radially within the core barrel assembly, thereby allowing for faster travel within the drill string. Implementations of the present invention also include drilling systems including such driven latch mechanisms, and methods of retrieving a core sample using such drilling systems.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: July 16, 2013
    Assignee: Longyear TM, Inc.
    Inventors: Christopher L. Drenth, George Iondov, George Ibrahim
  • Publication number: 20130105227
    Abstract: High productivity core drilling systems include a drill string, an inner core barrel assembly, an outer core barrel assembly, and a retrieval tool that connects the inner core barrel assembly to a wireline cable and hoist. The drill string comprises multiple variable geometry drill rods. The inner core barrel assembly comprises a non-dragging latching mechanism, such as a fluid-driven latching mechanism that contains a detect mechanism that retains the latches in either an engaged or a retracted position. The inner core barrel assembly also comprised high efficiency fluid porting.
    Type: Application
    Filed: December 17, 2012
    Publication date: May 2, 2013
    Applicant: LONGYEAR TM, INC.
    Inventor: Longyear TM, Inc.
  • Publication number: 20130092442
    Abstract: A core catcher includes a housing having an inner wall that defines an axial bore through the housing. A retention member is disposed within the housing and is coupled to a first hinge tab that defines a first hinge barrel with the inner wall of the housing. A first closure member has a slot that is engaged with the first hinge tab and a pivot edge that is at least partially disposed within the first hinge barrel. In an open position, the first closure member is disposed in an annulus between a sleeve that is slidably disposed within the housing and the housing. In a closed position the first closure member is disposed at least partially across the axial bore of the housing.
    Type: Application
    Filed: October 12, 2011
    Publication date: April 18, 2013
    Applicant: NATIONAL OILWELL VARCO, L.P.
    Inventors: Jiri Zastresek, Rick Mecham
  • Publication number: 20130056280
    Abstract: A head assembly includes a body, a spearhead operatively associated with the body and configured to translate axially relative to the body, and at least one latch operatively associated with the spearhead and the body. The latch is configured to move between an extended position and a retracted position relative to the body in response to axial translation of the spearhead relative to the body. In an extended position, the latch covers more than 25% of the circumference of the body adjacent the latches.
    Type: Application
    Filed: September 11, 2012
    Publication date: March 7, 2013
    Applicant: LONGYEAR TM, INC.
    Inventors: Robert E. Able, Thomas J. Oothoudt
  • Publication number: 20130032410
    Abstract: A core barrel assembly for retrieving a core sample. The core barrel assembly includes a retrieving element defining an inner tube for retrieving the core sample thereinto, a locking assembly including latch dogs for locking the core retrieving assembly inside the outer tube and a valve assembly mechanically coupled to the locking assembly and provided proximally relative thereto for controlling the flow of fluid across the core barrel assembly. The core barrel assembly is operable in a retrieving configuration in which the latch dogs are retracted and the valve assembly is closed, in a locking configuration in which a locking element locks the latch dogs in an extended configuration and the valve assembly is open and a retrieving configuration, in which the latch dogs are force in a retracted configuration and the valve assembly is open.
    Type: Application
    Filed: August 1, 2012
    Publication date: February 7, 2013
    Inventors: Martin Jolicoeur, Jacques Carrière
  • Patent number: 8333255
    Abstract: High productivity core drilling systems include a drill string, an inner core barrel assembly, an outer core barrel assembly, and a retrieval tool that connects the inner core barrel assembly to a wireline cable and hoist. The drill string comprises multiple variable geometry drill rods. The inner core barrel assembly comprises a non-dragging latching mechanism, such as a fluid-driven latching mechanism that contains a detent mechanism that retains the latches in either an engaged or a retracted position. The inner core barrel assembly also comprised high efficiency fluid porting.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: December 18, 2012
    Assignee: Longyear TM, Inc.
    Inventor: Chris Lloyd Drenth
  • Publication number: 20120305317
    Abstract: A retrieval system for a wireline drilling system having a winch, a wireline rope connected to the winch, and a core sampler connected to the wireline rope. The retrieval system includes a radio-frequency identification (RFID) transponder and a controller that, in response to receiving a wireless signal from the RFID transponder, automatically adjusts a speed at which the winch retrieves the core sampler.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 6, 2012
    Applicant: Longyear TM, Inc.
    Inventors: ADAM JOHN RIBOLDI, Fernando Fidel Aleite Escudero, Michael Luke Pearce
  • Patent number: 8272457
    Abstract: A latch head assembly for a core receiving apparatus including a core tube assembly and a retrieving head is provided. The latch head assembly includes a support, a first coupling for releasably engaging the retrieving device coupled to a first end of the support, and a second coupling for releasably engaging the core tube assembly coupled to a second end of the support. A core receiving apparatus including the latch head assembly is also provided. A method for inserting and retrieving the core receiving apparatus into and from a drill string is also provided.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: September 25, 2012
    Inventor: Harold M Pardey
  • Patent number: 8261857
    Abstract: A head assembly includes a body, a spearhead operatively associated with the body and configured to translate axially relative to the body, and at least one latch operatively associated with the spearhead and the body. The latch is configured to move between an extended position and a retracted position relative to the body in response to axial translation of the spearhead relative to the body. In an extended position, the latch covers more than 25% of the circumference of the body adjacent the latches.
    Type: Grant
    Filed: December 30, 2008
    Date of Patent: September 11, 2012
    Assignee: Longyear TM, Inc.
    Inventors: Robert E. Able, Thomas J. Oothoudt
  • Patent number: 8176998
    Abstract: A method in core drilling, wherein a tubular drill bit (8) being arranged at the end of a tubular drill string (6) is driven under rotation against a material intended for drilling, and wherein for the purpose of core retrieving, a tool (17, 20) is brought inside the drill string to an operative position in the area of the drill bit. Acoustic vibrations (24, 25) from the drill string are sensed when the tool is brought to its operative position, sensed acoustic vibrations are analysed for detecting the occurrence of acoustic vibrations characteristic for when the tool has reached its operative position, and an output signal is emitted when the occurrence of vibrations characteristic of when the tool has reached its operative position has been detected. The invention also concerns a device and a drill rig.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: May 15, 2012
    Assignee: Atlas Copco Rock Drills AB
    Inventor: Johan Brostöm
  • Patent number: 8051925
    Abstract: A braking device for drilling operations in a borehole includes a brake retainer having a plurality of brake connector openings defined therein, a body member having a tapered surface having a first diameter and a second diameter, the second diameter being larger than the first diameter, at least one brake element positioned at least partially between the brake retainer and the body member and in communication with the tapered surface and at least one of the brake connector openings, and a bias member configured to exert a biasing force on the body member to move the body member toward the brake retainer to move the brake element from contact with the first diameter of the tapered surface toward contact with the second diameter.
    Type: Grant
    Filed: April 26, 2011
    Date of Patent: November 8, 2011
    Assignee: Longyear TM, Inc.
    Inventor: Christopher L. Drenth
  • Publication number: 20110174546
    Abstract: A drill bit is disclosed. The drill bit has an axis, and a barrel, and a cutting member fixed to the barrel. The barrel is arranged to engage a drill shaft for driving the drill bit around the axis. The barrel and the cutting member are adjacently located on the axis. The drill bit has an aperture centered on the axis, the aperture passing completely through both the cutting member and barrel.
    Type: Application
    Filed: June 15, 2009
    Publication date: July 21, 2011
    Applicant: Sandvik Intellectual Property AB
    Inventors: Andy Bell, Raymond Purser
  • Publication number: 20110100718
    Abstract: A core lifter may be used in a drilling system. An exterior surface of the core lifter may include a plurality of longitudinally-oriented recesses. The core lifter may include a raised contact feature that may extend inwardly away from a gripping surface of the core lifter. The core lifter may include a flared skirt configured to limit movement of the core lifter relative to a core lifter case. The core lifter may be formed via stamping a sheet of material.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 5, 2011
    Applicant: LONGYEAR TM, INC.
    Inventors: Christopher L. Drenth, Hongyan Zhang
  • Publication number: 20100012383
    Abstract: High productivity core drilling systems are described. The system includes a drill string, an inner core barrel assembly, an outer core barrel assembly, and a retrieval tool that connects the inner core barrel assembly to a wireline cable and hoist. The drill string comprises multiple variable geometry drill rods. The inner core barrel assembly comprises a non-dragging latching mechanism, such as a fluid-driven latching mechanism that contains a detent mechanism that retains the latches in either an engaged or a retracted position. The inner core barrel assembly also comprised high efficiency fluid porting. Accordingly, the drilling system significantly increases productivity and efficiency in core drilling operations by reducing the time required for the inner core barrel assembly to travel through the drill string. Other embodiments are also described.
    Type: Application
    Filed: March 3, 2008
    Publication date: January 21, 2010
    Applicant: LONGYEAR TM, INC.
    Inventor: Chris Lloyd Drenth
  • Publication number: 20090283329
    Abstract: A head assembly includes a body, a spearhead operatively associated with the body and configured to translate axially relative to the body, and at least one latch operatively associated with the spearhead and the body. The latch is configured to move between an extended position and a retracted position relative to the body in response to axial translation of the spearhead relative to the body. In an extended position, the latch covers more than 25% of the circumference of the body adjacent the latches.
    Type: Application
    Filed: December 30, 2008
    Publication date: November 19, 2009
    Applicant: LONGYEAR TM, INC.
    Inventors: Robert E. Able, Thomas J. Oothoudt
  • Publication number: 20090283327
    Abstract: A jointed spearhead assembly can include a base portion that is adapted to be connected to a down-hole object and a spearhead portion having a first end and a second. The second end includes a follower tab with a non-convex first follower interface. The spearhead portion can be pivotally coupled to the base portion.
    Type: Application
    Filed: January 6, 2009
    Publication date: November 19, 2009
    Applicant: LONGYEAR TM, INC.
    Inventors: Christopher L. Drenth, George Ibrahim, Anthony Lachance
  • Publication number: 20090229884
    Abstract: A latch head assembly for a core receiving apparatus including a core tube assembly and a retrieving head is provided. The latch head assembly includes a support, a first coupling for releasably engaging the retrieving device coupled to a first end of the support, and a second coupling for releasably engaging the core tube assembly coupled to a second end of the support. A core receiving apparatus including the latch head assembly is also provided. A method for inserting and retrieving the core receiving apparatus into and from a drill string is also provided.
    Type: Application
    Filed: March 16, 2009
    Publication date: September 17, 2009
    Inventor: Harold M. Pardey
  • Patent number: 7431107
    Abstract: A coring bit, including an outer hollow coring shaft, and a rotationally uncoupled internal sleeve disposed inside the outer hollow coring shaft. The rotationally uncoupled internal sleeve may be a non-rotating internal sleeve. The rotationally uncoupled internal sleeve may be a free-floating internal sleeve.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: October 7, 2008
    Assignee: Schlumberger Technology Corporation
    Inventors: Bunker Hill, Gary W. Contreras, Edward Harrigan, Robert Wayne Sundquist, Lennox E. Reid, Dean W. Lauppe, Sony Tran
  • Patent number: 7383899
    Abstract: A spearhead assembly (10) comprises a base (12) provided with a slot (14) at one end (16) which opens onto an outer surface (13) of the base (12). The outer surface (13) is composed of three contiguous surface portions (18, 20 and 22). A spearpoint (20) is pivotally coupled at its proximal end (26), which is disposed in the slot (14), to the base (12). A distal end (28) of the spearpoint (24) extends or projects beyond the slot (14) and the surface (13) of the base (12). A spearpoint positioning system (30) urges the spearpoint (24) toward one of three annually spaced positioned. These positions are characterised by the spearpoint (24) extending substantially perpendicular to parallel opposed edges of the slot (14) which open onto, or are flanked by, the surface portions (18), (20 and 22). Moving the spearpoint from one position to another requires the application of an external force.
    Type: Grant
    Filed: August 18, 2003
    Date of Patent: June 10, 2008
    Assignee: 2iC Australia Pty Ltd
    Inventors: Andrew Beach, Gavin McLeod
  • Patent number: 7314101
    Abstract: Inner core barrel head assembly (10) includes an upper latch body (24), a plurality of latching balls (26) which are retained in the latch body (24) and a locking sleeve (28) disposed within the latch body (24). The sleeve (28) has an outer circumferential latching surface (30) of a first outer diameter and an outer circumferential release surface (32) of a second outer diameter smaller than the first outer diameter. The locking sleeve is axially moveable relative to the upper latch body (24) between a latching position and a release position. In the latching position, the latching surface (30) is in radial alignment with the balls (26), forcing the balls (26) radially outwardly into a latch seat (12) provided on a core barrel (20) attached to a lower end of a drill rod (14). This latches the assembly (10) to the core barrel preventing withdrawal.
    Type: Grant
    Filed: May 22, 2002
    Date of Patent: January 1, 2008
    Assignee: 2iC Australis Pty Ltd
    Inventor: Andrew Beach
  • Patent number: 7293613
    Abstract: A method and apparatus for downhole coring while receiving logging-while-drilling tool data. The apparatus includes core collar and a retrievable core barrel. The retrievable core barrel receives core from a borehole which is sent to the surface for analysis via wireline and latching tool The core collar includes logging-while-drilling tools for the simultaneous measurement of formation properties during the core excavation process. Examples of logging-while-drilling tools include nuclear sensors, resistivity sensors, gamma ray sensors, and bit resistivity sensors. The disclosed method allows for precise core-log depth calibration and core orientation within a single borehole, and without at pipe trip, providing both time saving and unique scientific advantages.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: November 13, 2007
    Assignee: The Trustees of Columbia University
    Inventors: David S. Goldberg, Gregory J. Myers
  • Patent number: 7168508
    Abstract: A method and apparatus for downhole coring while receiving logging-while-drilling tool data. The apparatus includes core collar and a retrievable core barrel. The retrievable core barrel receives core from a borehole which is sent to the surface for analysis via wireline and latching tool The core collar includes logging-while-drilling tools for the simultaneous measurement of formation properties during the core excavation process. Examples of logging-while-drilling tools include nuclear sensors, resistivity sensors, gamma ray sensors, and bit resistivity sensors. The disclosed method allows for precise core-log depth calibration and core orientation within a single borehole, and without at pipe trip, providing both time saving and unique scientific advantages.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: January 30, 2007
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: David S. Goldberg, Gregory J. Myers
  • Patent number: 7117939
    Abstract: A bit retention apparatus for the use of retrieving the hammer bit in cases of shankage. The apparatus incorporates a dual sleeve design that fits over the chuck and the extended head section of the hammer bit. The first, “inner” sleeve has two or more ring pieces that fit onto the chuck and have the retention ring fitted into the lower section of the sleeve. The second, “outer” sleeve fits onto the chuck over the inner sleeve to provide protect to the inner sleeve while pulling the shanked bit out of the well bore. Attachment to the bit is accomplished by collars, knobs, or threads on the interior of the sleeves that correspond with holding bands, retention rings, or threads on the bit and chuck.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: October 10, 2006
    Inventors: Gregory Dee Hawley, John Adam Meyers
  • Publication number: 20040256151
    Abstract: Disclosed herein are a crustal core sampler, by which a crustal core sample can be cored in a state coated with a flow-able coating material free of any contamination, and a method of coring a core sample using this crustal core sampler. The crustal core sampler comprises a drilling mechanism and a barrel, wherein the barrel is equipped with a flow-able coating material-ejecting mechanism, and a columnar crustal core portion is coated with a flow-able coating material. Alternatively, the crustal core sampler is constructed by a drill pipe and an inner barrel, wherein the inner barrel is equipped with an inner barrel body, a core elevator, a channel-forming member for forming a flow-able coating material-running channel and flow-able coating material-ejecting openings, and a columnar crustal core portion is coated with a flow-able coating material.
    Type: Application
    Filed: April 30, 2004
    Publication date: December 23, 2004
    Applicants: Independent Administrative Institution, Japan Agency for Marine-Earth Science and Technology, N L C Co., Ltd.
    Inventors: Kazuyasu Wada, Yusuke Yano, Tomoya Inoue, Masanori Kyo, Masaki Kawahara
  • Patent number: 6820703
    Abstract: The present invention relates to a locking device (4) for a wire line core drilling system comprising an inner tube (2) by means of which core samples are collected, and an outer tube (1) connected to a drill bit, which locking device is applied in the rear end of the inner tube. The locking device (4) comprises locking members (7, 9) so designed that, when the inner tube has been inserted into the outer tube and has assumed the correct position inside the outer tube for drilling, in one and the same movement it simultaneously effects mechanical locking of the inner tube (2) in relation to the outer tube (1) and release of a gripping means (10; 25) of an accompanying device (5; 26) connected to the inner tube.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: November 23, 2004
    Assignee: Atlas Copco Craelius AB
    Inventor: Thomas Borg
  • Publication number: 20040216927
    Abstract: Inner core barrel head assembly (10) includes an upper latch body (24), a plurality of latching balls (26) which are retained in the latch body (24) and a locking sleeve (28) disposed within the latch body (24). The sleeve (28) has an outer circumferential latching surface (30) of a first outer diameter and an outer circumferential release surface (32) of a second outer diameter smaller than the first outer diameter. The locking sleeve is axially moveable relative to the upper latch body (24) between a latching position and a release position. In the latching position, the latching surface (30) is in radial alignment with the balls (26), forcing the balls (26) radially outwardly into a latch seat (12) provided on a core barrel (20) attached to a lower end of a drill rod (14). This latches the assembly (10) to the core barrel preventing withdrawal.
    Type: Application
    Filed: April 30, 2004
    Publication date: November 4, 2004
    Inventor: Andrew Beach
  • Patent number: 6659204
    Abstract: A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase as the samples are retrieved to the surface, a coring tool in accordance with the present invention provides a self-contained system for retrieving core samples at or near in situ pressure while cooling the core sample. The coring tool is preferably a wire line retrievable device that provides for nearly continuous coring during the drilling operation.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: December 9, 2003
    Assignee: Japan National Oil Corporation
    Inventors: James T. Aumann, Craig R. Hyland
  • Patent number: 6425449
    Abstract: The drilling apparatus includes a wire line core barrel head assembly that has a latch body seatable on a drill string landing shoulder and retained in a latch seated position by a latch assembly spring urged to a latch seated position, fluid seals on the latch body to facilitate fluidly propelling the head assembly in an upward direction, valve mechanism in a latch body bypass channel to restrict fluid flow therethrough to provide a signal of the latch body seating on the landing shoulder and then opening together with being retractable to an open position by a latch retractor prior to the latch body being retracted and second valve mechanism to block axial outward flow in the bypass channel. The fluid seals are mounted to a latch body adaptor that may be removed to convert from an up-hole to a down-hole assembly.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: July 30, 2002
    Assignee: Boart Longyear International Holdings, Inc.
    Inventor: John C. Marshall
  • Patent number: 6378631
    Abstract: A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase as the samples are retrieved to the surface, a coring tool in accordance with the present invention provides a self-contained system for retrieving core samples at or near in situ pressure while cooling the core sample. The coring tool is preferably a wire line retrievable device that provides for nearly continuous coring during the drilling operation.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: April 30, 2002
    Inventors: James T. Aumann, Craig R. Hyland
  • Patent number: 6230825
    Abstract: A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase as the samples are retrieved to the surface, a coring tool in accordance with the present invention provides a self-contained system for retrieving core samples at or near in situ pressure while cooling the core sample. The coring tool is preferably a wire line retrievable device that provides for nearly continuous coring during the drilling operation.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: May 15, 2001
    Inventors: James T. Aumann, Craig R. Hyland
  • Patent number: 6216804
    Abstract: A pressure and temperature core sampler comprises a tool for recovering cores specifically enabling the evaluation of methane hydrate resources. Because methane hydrate tends to decompose under conditions of pressure decrease and/or temperature increase as the samples are retrieved to the surfaces a coring tool in accordance with the present invention provides a self-contained system for retrieving core samples at or near in situ pressure while cooling the core sample. The coring tool is preferably a wire line retrievable device that provides for nearly continuous coring during the drilling operation.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: April 17, 2001
    Inventors: James T. Aumann, Craig R. Hyland
  • Patent number: 6089335
    Abstract: The drilling apparatus includes a wire line core barrel inner tube assembly movable to a drill string bit end to have its landing ring seat on the drill string landing shoulder and its latches latchingly retain the assembly adjacent the bit end.
    Type: Grant
    Filed: December 16, 1998
    Date of Patent: July 18, 2000
    Assignee: Boart Longyear International Holdings, Inc.
    Inventor: Robert E. Able
  • Patent number: 6029758
    Abstract: The drilling apparatus includes a wire line core barrel having a head assembly and a drilling tool connected to the head assembly. The head assembly includes a latch body with a landing shoulder seatable on the drill string landing ring, latches seatable in a drill string latch seat and a fluid bypass channel for bypassing from one axial side of the landing shoulder to the other, a bushing in the bypass channel, a valve member movable in the channel from an axial outer bypass channel open position and an axial inner second position extending into the bushing for one of blocking axial inward fluid flow through the bushing and restricting inward flow through the bushing. A spring is provided in the bore inwardly of the bushing for abutting against the valve member in its second position to urge the valve member axially outwardly.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: February 29, 2000
    Assignee: Boart Longyear International Holdings, Inc.
    Inventors: Radoie Novacovicci, Daniel H. Morin
  • Patent number: 6006844
    Abstract: A core barrel having an inner tube for coring and, alternately, a center plug assembly for closing the throat of the core bit at the bottom of the assembly for drilling in lieu of coring. The inner tube assembly and plug assembly are disposable and retrievable through the drill string on a wireline using an overshot. The core bit is of a stabilized, preferably anti-whirl, design and may be a low-invasion core bit used in cooperation with a low-invasion coring shoe. A logging tool and data transmission assembly may be incorporated in the plug assembly for logging while drilling. Alternatively, sensors for logging borehole parameters and a data transmission assembly may be incorporated in the inner tube assembly, in the wall of the core barrel, above the core barrel, or in a combination of such locations.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: December 28, 1999
    Assignee: Baker Hughes Incorporated
    Inventors: Luc Van Puymbroeck, John W. Harrell, Michael H. Johnson, Pierre E. Collee
  • Patent number: 5934393
    Abstract: The core barrel apparatus includes a wire line core barrel inner tube having a latch body main body portion and an inner portion threaded together to cooperatively provide a radial outer groove mounting a landing ring seatable on the drill string landing ring with the latches seatable in the drill string latch seat and a radial inner groove mounting a bushing surrounding the axial bore of the bypass channel for bypassing fluid between portions of the latch body on axial opposite sides of the latch body ring. The valving mechanism in the bore includes the bushing and may include a valve spring axially inwardly of bushing and a valve ball. The valve ball and bushing may be of a resiliency to permit the ball passing through the bushing under fluid pressure or prevent the ball passing through the bushing. Overcenter linkage connected to the latches is retractable by a retractor pin.
    Type: Grant
    Filed: February 19, 1997
    Date of Patent: August 10, 1999
    Assignee: Boart Longyear International Holdings, Inc.
    Inventor: John C Marshall
  • Patent number: 5799742
    Abstract: A core drilling latch assembly for use in terrestrial core drilling operations. The latch assembly incorporates features and elements which affect the flow of drilling fluids past the latch assembly and toward the drill bit, depending upon whether the latch assembly has contacted the landing ring in the drill string and whether the latch assembly has locked in place within the string. Accordingly, the latch assembly signals the drilling crew by pressure fluctuations when the latch assembly is in proper position within the drill string, and whether it is locked in position.
    Type: Grant
    Filed: October 22, 1996
    Date of Patent: September 1, 1998
    Assignee: Northwest Machine Works, Inc.
    Inventors: Frederick J. Soinski, Donald Raymond
  • Patent number: 5601152
    Abstract: A drilling tool, for example a core barrel inner tube assembly, includes a latch body mounting latches for movement into a latch seat to removably retain the assembly adjacent to a drill string bit end and to impart rotary movement to the latch body as the drill string is rotated. A spindle subassembly is connected to the axial inner end of the latch body, to in turn, mount a vibrational subassembly for imparting axial reciprocal movement to a core receiving tube as the drill string is rotated to facilitate entry of core into the tube. The vibrational assembly converts rotary motion of the spindle subassembly to axial reciprocal movement of the core receiving tube while the core receiving tube is not being rotated but is moved axially inwardly over the core.
    Type: Grant
    Filed: March 23, 1995
    Date of Patent: February 11, 1997
    Assignee: Boart Longyear Inc.
    Inventor: Simon J. Harrison
  • Patent number: 5568838
    Abstract: A core barrel having an inner tube for coring and, alternately, a center plug assembly or closing the throat of the core bit at the bottom of the assembly for drilling in lieu of coring. The inner tube assembly and plug assembly are disposable and retrievable through the drill string on a wireline using an overshot. The core bit is of a stabilized, preferably anti-whirl, design and may be a low-invasion core bit used in cooperation with a low-invasion coring shoe. A logging tool and data transmission assembly may be incorporated in the plug assembly for logging while drilling.
    Type: Grant
    Filed: September 23, 1994
    Date of Patent: October 29, 1996
    Assignee: Baker Hughes Incorporated
    Inventors: Barry W. Struthers, Pierre E. Collee
  • Patent number: 5450913
    Abstract: The invention provides an apparatus and method for taking samples of soil and other materials in an efficient manner as well as for maintaining a high level of integrity of the samples. Using a wire line and a release and retrieve assembly, the sampling tube is lowered into an auger that has been bored into the ground to the desired depth. Once lowered to the bottom of the auger, the sampling tube is locked into place and the release and retrieve assembly is removed from the auger. A portion of the sampling tube extends beyond the drill bit. As the auger is drilled farther into the ground, the sampling tube is filled with soil or whatever material is present, without such soil or other material having been disturbed by the drill bit. This provides integrity of the sample. After the sample has been collected in the sampling tube, the release and retrieve assembly is reinserted into the auger and reattached to the sampling tube, which is then unlocked and retrieved out of the auger.
    Type: Grant
    Filed: October 1, 1993
    Date of Patent: September 19, 1995
    Assignee: Gold Star Manufacturing, Inc.
    Inventors: Larry C. Mefferd, Floyd R. Mefferd
  • Patent number: 5351765
    Abstract: Coring apparatus and method are disclosed which provide for hydraulic latching of an inner core barrel within an outer core barrel. The apparatus includes a valve face disposed around the inner core barrel and valve seat disposed around the bore of the outer core barrel that close to form a restriction in the drilling fluid flow path. A hydraulic differential force is thereby created which holds the inner barrel in place. Axially oriented bores in a hanger assembly and in stabilizers are disposed along the inner core barrel to provide a flow path for the drilling fluid after the restriction is formed. The bores are calibrated to produce a pre-determined hydraulic force on the inner barrel. A bearing assembly is used to prevent transmission of outer barrel rotation to the inner core barrel. The outer surface of the bearing assembly forms the valve face so as to form the drilling fluid restriction and also provides an axial stop that prevents further axial movement of the inner barrel towards the core head.
    Type: Grant
    Filed: August 31, 1993
    Date of Patent: October 4, 1994
    Assignee: Baroid Technology, Inc.
    Inventor: Ronald D. Ormsby