Movable To Seal Sample Receiver At Bore Bottom Pressure Patents (Class 175/233)
  • Patent number: 9598922
    Abstract: A tool retrieves material from a well. The tool has a cylindrical tool body, malleable members, and a cylindrical jacket. The tool body defines a chamber adapted to receive material for retrieval. The malleable members are on the lower end of the tool body and preferably are made of a relatively hard, tough malleable material such as steel. They are bendable from an open position allowing material to enter the chamber to a closed position capturing the material. The jacket is mounted on the exterior of the tool body and has a mill surface which is adapted to bend the malleable members from the open position to the closed position. Relative axial movement of the jacket and the tool body causes the malleable members to bear on the mill surface and bend to the closed position.
    Type: Grant
    Filed: March 15, 2016
    Date of Patent: March 21, 2017
    Inventor: Douglas T. Beynon
  • Patent number: 9512680
    Abstract: A coring system and method enable a single-trip operation for setting a deflector assembly, deploying a coring assembly and obtaining a core sample from a borehole drilled in a wellbore. The coring assembly has a barrel with a bore for collecting the core sample and has a coring bit coupled to an end portion of the barrel. The deflector system is arranged to deflect the coring bit into a side wall of the wellbore to drill the borehole therein. The deflector system includes a deflector and a collar. The collar, coupled to the deflector, restricts upward movement of the coring assembly relative to the deflector assembly. The collar may also be used as a retrieval device to engage the coring assembly and permit removal of the coring assembly and the deflector assembly as well as the core sample after the core sample has been obtained.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: December 6, 2016
    Assignee: Smith International, Inc.
    Inventors: John Campbell, Shantanu N. Swadi, Charles Dewey, Robert Utter, Praful C. Desai
  • Patent number: 9376879
    Abstract: Provided is a core sampling apparatus which maintains the internal pressure after the core drilling. The core sampling apparatus includes a barrel part, a container which is movably disposed in the barrel part and maintains the sampled core, a ball valve to prevent a fluid from inflowing and outflowing between an inside and an outside of the barrel part in a closed state thereof, a first seal member which seals a space between the barrel part and the ball valve, a second seal member which seals a space between the container and the barrel part, a locking mechanism which locks a state in which the ball valve is sealed by the first seal member, and an inflowing mechanism configured to inflow the fluid only in a direction to an internal space of the closed barrel part by the first seal member and the second seal member.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: June 28, 2016
    Assignee: JAPAN AGENCY FOR MARINE-EARTH SCIENCE TECHNOLOGY
    Inventor: Yasuhiko Mizuguchi
  • Patent number: 9284807
    Abstract: A tool for retrieving material from a well. The tool has a cylindrical tool body, malleable members, and a cylindrical jacket. The tool body defines a chamber adapted to receive material for retrieval. The malleable members are on the lower end of the tool body and preferably are made of a relatively hard, tough malleable material such as steel. They are bendable from an open position allowing material to enter the chamber to a closed position capturing the material. The jacket is mounted on the exterior of the tool body and has a mill surface which is adapted to bend the malleable members from the open position to the closed position. Relative axial movement of the jacket and the tool body causes the malleable members to bear on the mill surface and bend to the closed position.
    Type: Grant
    Filed: February 13, 2013
    Date of Patent: March 15, 2016
    Inventor: Douglas T. Beynon
  • Publication number: 20140262527
    Abstract: A round-trip autoclave sample-extracting device for extracting a sample at a sample extraction location of a geological formation, the device includes a self-closing pressure chamber module for receiving the sample. The pressure chamber module is connected to a lifting module in order to lift the sample into the pressure chamber module in one sampling stroke. The round-trip autoclave sample-extracting device has a triggering module and a pressure regulating module, the triggering module acting on the lifting module in order to trigger the sampling stroke, and the pressure regulating module is coupled to the pressure chamber module at least on the pressure side after the sampling stroke in order to influence a pressure in the pressure chamber module. A round-trip method is proposed which includes a first trip and at least one second trip for extracting a sample while maintaining a pressure that is present at the sample extraction location.
    Type: Application
    Filed: October 24, 2012
    Publication date: September 18, 2014
    Applicant: Corsyde International GMBH & Co., KG
    Inventors: Tobias Rothenwaender, David Wunsch, Erik Anders, Martin Rothfuss, Benjamin Arnold, Alexander Schulze
  • Patent number: 7775276
    Abstract: An embodiment includes an apparatus that includes a sample carrier adapted to receive a sample and return it to the surface. An embodiment includes a formation tester adapted to load the sample carrier. An embodiment includes a retriever to remove the carrier from the drilling mud. The retriever also includes a device for removing the sample from the carrier.
    Type: Grant
    Filed: March 3, 2006
    Date of Patent: August 17, 2010
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Michael T. Pelletier, John C. Welch, Clive Menezes
  • 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: 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: 5555945
    Abstract: Early evaluation testing of a subsurface formation is provided by monitoring pressure fall-off in the formation. This is accomplished by providing a column of fluid in the well having an overbalanced, hydrostatic pressure at the subsurface formation greater than a natural formation pressure of the subsurface formation. A testing string is run into the well, and the testing string includes a packer, a pressure monitor and a closure tool arranged to close a bore of the testing string. The formation is shut in by setting the packer and closing the bore of the testing string with the closure tool and thereby initially trapping the overbalanced hydrostatic pressure of the column of fluid in the well below the packer. Then the pressure in the well below the packer is monitored as it falls off toward the natural formation pressure. This data can be extrapolated to estimate the natural formation pressure based upon a relatively short actual test interval on the order of ten to fifteen minutes.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: September 17, 1996
    Assignee: Halliburton Company
    Inventors: Roger L. Schultz, H. Kent Beck, Paul D. Ringgenberg, Ronald L. Hinkie
  • Patent number: 5482123
    Abstract: A pressure core barrel including an inner tube containing a non-invasive gel for encapsulating a core sample. An anti-whirl core bit is employed, and the core bit and inner tube pilot shoe are configured and arranged to prevent damage to the core from drilling fluid. A special high viscosity, low spurt loss coring fluid is employed in the coring operation. When the encapsulated, pressurized care sample is brought to the surface, pressure is bled off and the core sample's chemical and mechanical integrity are substantially preserved by the gel.
    Type: Grant
    Filed: October 25, 1994
    Date of Patent: January 9, 1996
    Assignee: Baker Hughes Incorporated
    Inventor: Pierre E. Collee
  • Patent number: 4950844
    Abstract: For use with a core sample tool removing a sample from a formation of interest, a sonde supported sample receiving chamber is disclosed. It includes a main valve for sample insertion into a cavity in a resilient sleeve. The sleeve is in a chamber connected by suitable valved passages to enable ambient pressure at the cavity to equal downhole pressure; by valve operation this pressure can be maintained after chamber removal and transfer.
    Type: Grant
    Filed: April 6, 1989
    Date of Patent: August 21, 1990
    Assignee: Halliburton Logging Services Inc.
    Inventors: Bobby J. Hallmark, Milton B. Enderlin
  • Patent number: 4583595
    Abstract: A method and an apparatus for taking a sample representative of the fluid present in a well comprises an elongated body, suitable for being suspended down the well at the end of a cable. The body includes a removable sampling vessel fixed sideways in a recessed portion of the body which vessel is capable of being used, after being filled downhole, as a vessel for transporting the sample under pressure.
    Type: Grant
    Filed: December 20, 1984
    Date of Patent: April 22, 1986
    Assignee: Schlumberger Technology Corp.
    Inventors: Jean A. Czernichow, Alain R. Chevassus-More
  • Patent number: 4356872
    Abstract: A core barrel flushing device and method is disclosed particularly for flushing drilling fluid, mud and other undesirable material from a pressure core barrel downhole at existing conditions and pressure.The flushing device (F) comprises an outer barrel attachable to the drill string and core barrel (10), and an inner barrel (90) within the outer barrel (70). A sealed chamber (C) within the outer barrel (70) contains a piston (114) and flushing medium (M) displacable from the chamber (C) and into the core barrel during forceful displacement of the piston following actuation of the flushing device.Actuation of the flushing device is initiated by means (B) passed down the drill string into engagement with actuating means (94) allowing displacement of the piston and flushing medium from the chamber into the core barrel.Tripping means (112) are also disclosed responsive to the final movement of the piston to actuate, and seal the flushed pressure core barrel (10) and core sample (51) therein downhole.
    Type: Grant
    Filed: August 21, 1980
    Date of Patent: November 2, 1982
    Assignee: Christensen, Inc.
    Inventor: Craig R. Hyland
  • Patent number: 4317490
    Abstract: A method and apparatus are disclosed for obtaining a core at in situ pressure of sedimentary deposits at the bottom of a well bore or body of water. The core barrel has a pressure chamber that is closed and opened by a ball valve actuated from the surface. When in position above the sedimentary deposits to be cored, a sample tube is extended from the pressure chamber into the sedimentary deposits to obtain a core. The sample tube is retracted into the pressure chamber and the valve closed to trap ambient pressure in the chamber. The sample tube and valve are operated from the surface.
    Type: Grant
    Filed: March 7, 1980
    Date of Patent: March 2, 1982
    Assignee: Texas A & M University System
    Inventors: Lionel J. Milberger, Eddie W. Denk, Kai R. Hostrup
  • Patent number: 4258803
    Abstract: Core barrel apparatus for obtaining and retrieving sealed core samples of subterranean formations are disclosed. The core barrel comprises a sample chamber for receiving a core sample as it is formed at the bottom of a bore hole and an expansion chamber for receiving sample fluids. The expansion chamber comprises a cylinder having a movable sealing member therein adapted to movably seal the expansion chamber. The volume of the expansion chamber is determined by the position of the sealing member in the cylinder, movement of the sealing member changing the volume of the expansion chamber. The sample chamber and expansion chamber are selectively connected to one another by means of a seal therebetween. The expansion chamber is sealed closed by the sealing member at one end and said seal at the other end while the sample is being cut and received within the sample chamber. Thereafter, the lower portion of the sample chamber is sealed by a flap-valve and the expansion chamber is opened to the sample chamber.
    Type: Grant
    Filed: June 21, 1978
    Date of Patent: March 31, 1981
    Assignee: American Coldset Corporation
    Inventors: Charles M. Thompson, Charles T. Thompson
  • Patent number: 4256192
    Abstract: This invention relates to improvements in pressure core barrels of the type described in U.S. Pat. No. 3,548,958 wherein a controlled pressure is maintained on a core sample during surfacing. Among the improvements provided by the present invention are an improved arrangement of the pressure control valve, a means for positively latching the assembly (both in the open and closed positions) and the provision of a hydraulic assist for moving the outer barrel to the sealing position. Another feature provides an improved device for flushing of the mud from the core sample while it is under high pressure to facilitate the further sampling of the core after freezing of the section.
    Type: Grant
    Filed: July 6, 1979
    Date of Patent: March 17, 1981
    Assignee: Christensen, Inc.
    Inventor: James T. Aumann
  • Patent number: 4230192
    Abstract: Coring apparatus for obtaining core samples which may comprise: an outer barrel assembly, the lower end of which is adapted for connection to a core bit, the upper end of which is adapted for connection to a drill string; an inner barrel assembly concentrically disposed within the outer barrel assembly and having first and second axially spaced and fluid communicating chambers therein; and valve means carried by the inner barrel assembly and movable from an open position, in which a core sample may be received by the first chamber, to a closed position, sealingly enclosing the core sample within the first chamber.
    Type: Grant
    Filed: August 8, 1978
    Date of Patent: October 28, 1980
    Inventor: Fritz T. Pfannkuche
  • Patent number: 4142594
    Abstract: Core barrel apparatus and a method for obtaining and retrieving sealed core samples of subterranean formations are disclosed. The core barrel apparatus comprises inner and outer core barrels. The upper portion of the outer core barrel is adapted to be connected to a drill string. A core bit for cutting a core sample is mounted on the lower portion of the outer core barrels. The inner core barrel comprises a sample chamber for receiving a core sample as it is formed at the bottom of a bore hole and an expansion chamber for receiving sample fluids. The sample chamber and expansion chamber are selectively connected to one another. The expansion chamber is sealed closed while the sample is being cut and received within the sample chamber. The lower portion of the sample chamber adjacent the core bit is sealed by a flap-valve which includes a flexible flap member.
    Type: Grant
    Filed: July 6, 1977
    Date of Patent: March 6, 1979
    Assignee: American Coldset Corporation
    Inventors: Charles M. Thompson, Charles W. Spehrley, Charles T. Thompson