Core-retaining Or Severing Means Patents (Class 175/249)
  • Patent number: 11204400
    Abstract: Pressure coring where the core apparatus drills the core sample and seals the core sample at its native downhole pressure (e.g., several thousand psi) may be expanded to include nuclear magnetic resonance (NMR) imaging components to produce a pressurized NMR core holder that allows for NMR imaging of the core samples having been maintained in a downhole fluid saturation state. NMR imaging performed may include 1H and also 19F imaging depending on the chamber fluid used in the pressurized NMR core holder.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: December 21, 2021
    Assignee: HALLIBURTON ENERGY SERVICES, INC.
    Inventors: Songhua Chen, Donald Clifford Westacott
  • Patent number: 10761157
    Abstract: Pressure coring where the core apparatus drills the core sample and seals the core sample at its native downhole pressure (e.g., several thousand psi) may be expanded to include nuclear magnetic resonance (NMR) imaging components to produce a pressurized NMR core holder that allows for NMR imaging of the core samples having been maintained in a downhole fluid saturation state. NMR imaging performed may include 1H and also 19F imaging depending on the chamber fluid used in the pressurized NMR core holder.
    Type: Grant
    Filed: September 20, 2016
    Date of Patent: September 1, 2020
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Songhua Chen, Donald Clifford Westacott
  • Patent number: 10498248
    Abstract: A dual function solid state power converter operable from a three phase AC input current simultaneously provides; an AC or DC output current on an aircraft power cable which extends from a stowed position to provide ground power to a parked aircraft, and a low voltage DC current on a battery charging power cable which extends from a stowed position to charge batteries in nearby service vehicles. The power converter includes an AC to DC converter which converts the AC input current to a DC current on an internal DC bus, a DC to AC converter which converts the DC bus current to an AC current at a higher voltage and frequency, or a DC to DC converter which converts the DC bus current to a lower voltage DC, for supplying ground power by means of a connecting cable to a parked aircraft, and a DC to DC converter for converting the DC bus current to a lower voltage battery charging current on the battery charging cable.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: December 3, 2019
    Assignee: ITW, Inc.
    Inventor: David W Leadingham
  • Patent number: 10436865
    Abstract: A method for combining nuclear magnetic resonance (NMR) analysis and digital rock physics (DRP) analysis based on drilling cuttings or other rock samples for improved downhole nuclear magnetic resonance validation and characterization. A system for performing the method also is provided.
    Type: Grant
    Filed: January 15, 2016
    Date of Patent: October 8, 2019
    Assignee: Halliburton Energy Services, Inc.
    Inventor: Kathryn Elizabeth Washburn
  • Patent number: 10065252
    Abstract: A drill bit rotatable about a rotation axis is disclosed. The drill bit has a first drill bit portion configured as a cutting portion and has an annular portion connected at one end to one or more cutting elements and, at another end, a first connection device. The drill bit has a second drill bit portion configured as a drilling shank portion and has a cylindrical drill shaft, which on one end has a second connection device. The first and second connection devices in a connected state form a detachable connection, and a force transmission and torque transmission occur from the drill shaft portion to the cutting portion. The cutting portion has a third connection device, and the drill shaft portion has a fourth connection device. The third and fourth connection devices in a connected state form in an axial direction parallel to the axis a form-fitting connection.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: September 4, 2018
    Assignee: Hilti Aktiengesellschaft
    Inventor: Matthaeus Hoop
  • Patent number: 9927554
    Abstract: A method and system for analysis of a digital core image obtained from a sample are disclosed. The method includes performing segmentations on the digital core image using multiple approaches to obtain multiple segmented images which are statistically analyzed to select the most suitable approach of the multiple approaches. Thereafter, a digital core model is generated using the segmented image corresponding to the most suitable approach. A simulation test may be performed on the digital core model to obtain a model test result and an oilfield operation may be performed based on the model test result. The system includes measurement and testing equipment to obtain the digital core image and a computing system including a data repository for storing a digital core image and a digital core model, and a digital core modeling tool. The digital core modeling tool performs the segmentations, statistical analysis, and generates the digital core model.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: March 27, 2018
    Assignee: Schlumberger Technology Corporation
    Inventors: Mark Andersen, Alexander Nikolaevich Nadeev, Igor Andreevich Varfolomeev, Ivan Yakimchuk, Denis Klemin, Dmitry Anatolievich Koroteev, Sergey Sergeevich Safonov
  • Patent number: 9915354
    Abstract: A rotary check valve is disclosed having sealing surfaces between two sealing members that engage with a rotating shearing motion. The rotating shearing motion may shear debris between the sealing members and minimize or eliminate blockage of fluid passageways in the sealing members. In a closed position, the upper sealing member and lower sealing member are rotated such that fluid passageways in the upper sealing member and fluid passageways in the lower sealing member are not aligned and blocked by the sealing surfaces. The sealing members of the rotary check valve may be biased to a closed position via a spring.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: March 13, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Robert Kelly, Karidja Louise-Olivia Djibo, Kent D. Harms, Walter Luckett
  • Publication number: 20150021096
    Abstract: Methods of procuring a core sample may involve engaging an earth formation with a cutting structure of a coring bit. A core sample may be received within a receptacle connected to the coring bit, the receptacle being lined with a sponge material. A space of about 1 mm or less may be maintained between the core sample and the sponge material. Coring tools may include a coring bit comprising an inner gage and an outer gage and a sponge material positioned to at least partially surround a core sample cut by the coring bit. A radial distance between an inner surface of the sponge material and the inner gage of the coring bit may be about 1 mm or less. A distance between a center of curvature of the inner gage and a center of curvature of the outer gage may be about 0.3 mm or less.
    Type: Application
    Filed: July 14, 2014
    Publication date: January 22, 2015
    Inventors: Christoph Wesemeier, Thomas Uhlenberg
  • Publication number: 20140209385
    Abstract: A sidewall coring apparatus for obtaining a plurality of formation cores from a sidewall of a wellbore includes a core catching tube configured to be sealed downhole and to store at least one of the formation cores therein. The core catching tubes includes a first end that may be sealed by a first sealing mechanism, and an opposite end that may be sealed by a second sealing mechanism. The core catching tube also includes a fluid evacuation port that may be sealed downhole.
    Type: Application
    Filed: March 31, 2014
    Publication date: July 31, 2014
    Applicant: Schlumberger Technology Corporation
    Inventors: Lennox E. Reid, JR., Carsten Sonne
  • Patent number: 8757293
    Abstract: A coring method and apparatus is provided for extracting a core sample from a subterranean formation and/or drilling a hydrocarbon well, the coring apparatus having: a pneumatic reciprocating hammer having a first end for operatively connecting the pneumatic reciprocating hammer to a drill string, a second end having a hammer bit and a reciprocating piston for reciprocating the hammer bit; and a coring member operatively connected to the pneumatic reciprocation hammer, the coring member comprising an impact anvil and a hollow coring barrel forming an internal longitudinal chamber for accommodating the core sample, the coring barrel positioned below the impact anvil; whereby when the hammer bit strikes the impact anvil, the coring barrel is driven into the formation and the core sample is extracted into the internal longitudinal chamber of the coring barrel.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: June 24, 2014
    Assignee: J. I. Livingstone Enterprises Ltd.
    Inventor: James I. Livingstone
  • Patent number: 8752650
    Abstract: Drill stern test apparatus includes a drill string, wireline coring system and a downhole tool that is seated in the core barrel of the coring system. A valve packer within the downhole tool is inflated to seal the core barrel and allow a valve to be operated by movement of the drill string. One or more packers can be inflated to isolate the test zone in the borehole below the coring system. The apparatus is operated to allow the test zone fluid to flow upwardly in the downhole tool and be measured. Downhole tool transducers accumulate the data and transmit the same to the surface. The wireline can be pulled to relieve packer inflation pressure, release a latch and allow the downhole tool to be pulled to the surface while leaving the coring system in place.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: June 17, 2014
    Inventor: Ian Gray
  • Publication number: 20140158434
    Abstract: Provided is a coring apparatus for collecting marine sediments, and more particularly, to a coring apparatus having a core filled with marine sediments when the coring apparatus is inserted into a seabed.
    Type: Application
    Filed: June 13, 2013
    Publication date: June 12, 2014
    Applicant: KOREA INSTITUTE OF GEOSCIENCE AND MINERAL RESOURCES
    Inventor: Gee Soo Kong
  • Patent number: 8739898
    Abstract: A method for detecting the presence of an acid gas in a formation fluid from a subterranean formation comprises (a) lowering a coring assembly into a wellbore. The coring assembly including an outer core barrel and an inner core barrel disposed within the outer core barrel. The inner core barrel has an upper end, a lower end opposite the upper end, and a core sample chamber extending axially from the lower end. In addition, the method comprises (b) capturing a core sample from the subterranean formation within the sample chamber. Further, the method comprises (c) raising the coring assembly to the surface after (b). Still further the method comprises (d) contacting a formation fluid in the sample chamber with at least one detector during (c). Moreover, the method comprises (e) detecting the presence of a formation acid gas in the formation fluid with the at least one detector during (c).
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: June 3, 2014
    Assignee: BP Corporation North America Inc.
    Inventors: Paul Johnston, Debbie Kercho, Kevan Sincock, Ray Wydrinski, Ross Benthien
  • Patent number: 8684110
    Abstract: A sidewall coring apparatus for obtaining a plurality of formation cores from a sidewall of a wellbore includes a core catching tube configured to be sealed downhole and to store the plurality of formation cores therein. The core catching tubes includes an inner sleeve and an outer sleeve concentric with the inner sleeve. The inner and outer sleeves include corresponding slots configured to align in response to relative movement of the inner and outer sleeves, and when aligned the slots of the inner and outer sleeves allow evacuation of fluid from the core catching tube as each of the plurality of formation cores is inserted into the core catching tube.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: April 1, 2014
    Assignee: Schlumberger Technology Corporation
    Inventors: Lennox E. Reid, Jr., Carsten Sonne
  • Patent number: 8657037
    Abstract: A core retaining device is provided for use with a core drill bit, which is adapted to cut a core from a material such as concrete. The core retaining device includes a core attachment mechanism for releasably connecting the core retaining device to the core. A bearing is connected to the core attachment mechanism and allows the drill bit to rotate while the core attachment mechanism remains statically connected to the core. A biasing arrangement operably connects between the drill bit and the core via the bearing, and axially biases the core away from the material preventing the core from slipping from the drill bit. The core retaining device further includes at least one auxiliary safety feature such as extensions which extend laterally outward from the drill bit.
    Type: Grant
    Filed: January 30, 2013
    Date of Patent: February 25, 2014
    Inventor: Vidik Noiman
  • Patent number: 8647030
    Abstract: A core drilling system is disclosed herein in which a torque tube has a groove or keyway which receives a rotating wheel or key to prevent a transmission box and motor from rotating during drilling operation. As such, the operator does not need to hold a stabilizing arm to resist counter rotational forces during the drilling process. The operator may focus on the hole to be cut in a substrate. Additionally, a torque tube stabilizing leg assembly may be secured to the free distal end portion of the torque tube.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: February 11, 2014
    Inventors: C. Warren Duncan, Anders Johnsen
  • Patent number: 8613330
    Abstract: An example coring tool includes a cylindrical body having a leading edge to contact a substance and a cavity defined at least in part by an inner surface of the cylindrical body. The inner surface is to engage and retain a sample from the substance with a plurality of raised features. The raised features are shaped so that at least one of the raised features or an exterior surface of a sample in the cavity deforms to increase a force required to remove the sample from the cavity.
    Type: Grant
    Filed: March 29, 2012
    Date of Patent: December 24, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Barry Moon, Vincent Jeffrey Pisio, Steven E. Buchanan
  • Patent number: 8579049
    Abstract: A drill string assembly is required that has the capability of operating in well bores that range in hole size from seven to eight inches in diameter. The assembly is used to obtain a large core sample size that is equal to three and one-half inches in diameter and up to ninety feet in length in a single core run. This assembly will be operated with a drill string (i.e. drill pipe) that is capable of being used on standard drilling rigs, which may be used to handle API style drill pipe to conduct coring/drilling operations. The coring tool is comprised of an inner barrel for receiving the core sample.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: November 12, 2013
    Assignee: Corpro Technologies Canada Ltd.
    Inventor: Douglas Kinsella
  • Patent number: 8550184
    Abstract: Methods comprising: lowering a downhole tool into a wellbore extending into a subterranean formation, wherein the downhole tool comprises a coring tool and a measurement tool; performing a measurement regarding the formation using the measurement tool; determining a section of interest within the formation relative to an axis of the coring tool based on the measurement; orienting a coring bit of the coring tool relative to the section of interest; and extending the oriented coring bit into the formation.
    Type: Grant
    Filed: May 7, 2010
    Date of Patent: October 8, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Steven E. Buchanan, Julian J. Pop, Carsten Sonne, Gokhan Erol
  • Patent number: 8453766
    Abstract: An apparatus for transporting core samples includes an outer tube having an open end and a cover removably mounted to the open end; a core tube slidable into and out of the outer tube when the cover is removed from the outer tube; and a supporting structure between the core tube and the outer tube. The supporting structure supports the core tube within the outer tube with the core tube spaced from contact with an inner wall of the outer tube.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: June 4, 2013
    Assignee: Intevep, S.A.
    Inventors: Leonardo Graterol, Juan Ramos, Ricardo Rojas, Richard Rengifo, George Quercia
  • Patent number: 8430186
    Abstract: An apparatus comprising a sidewall coring tool configured to obtain a plurality of sidewall formation cores from a sidewall of a wellbore extending into a subterranean formation, wherein the sidewall coring tool comprises a core catching tube configured to store the plurality of sidewall formation cores therein, wherein the core catching tube comprises a fluid port configured to allow evacuation of fluid from the core catching tube as each of the plurality of sidewall formation cores is introduced therein, and wherein the core catching tube, including the fluid port, is configured to be sealed downhole without removing the sidewall coring tool from the wellbore.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: April 30, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Lennox E. Reid, Jr., Carsten Sonne
  • Patent number: 8408332
    Abstract: A coring tool for use in a borehole formed in a subterranean formation includes a tool housing with a coring aperture and a core receptacle. A coring bit is mounted within the tool housing and movable between retracted and extended positions by a series of pivotably connected extension link arms. Another set of link arms rotates the coring bit between coring and eject positions. The coring tool may also include a multi-column core storage magazine with shifters to move cores or core holders between columns. The coring tool may be used to measure core lengths during operation and facilitates retrieval of cores having larger lengths and diameters than conventional sidewall coring tools.
    Type: Grant
    Filed: November 21, 2011
    Date of Patent: April 2, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Lennox E. Reid, Jr., Rachel Agnes Lavaure
  • Publication number: 20130068529
    Abstract: An attachment for removing a drill core from a hollow volume of a hollow drill bit, comprising an attachment sheath embodied to be arranged at an accepting shaft comprising at least one ejection element, which is embodied in the hollow volume of the hollow drill bit and designed for transferring a force upon the drill core.
    Type: Application
    Filed: March 21, 2012
    Publication date: March 21, 2013
    Inventors: Thomas Hofbrucker, Jochen Meidlein
  • Patent number: 8365839
    Abstract: Device, method and system for substantially simultaneous injection of air or sealant into a borehole resulting from extraction of a sampling assembly from a formation. An auxiliary conduit is attached along a sampling tube. Fluids, including a slurry or compressed air, are injected into the borehole as the sampling assembly is extracted. Injection of compressed air reduces or removes the suction of the vacuum forming below the retracting assembly. Introduction of a bentonite slurry seals the borehole that is opening as the sampling assembly withdraws. Fluids containing disinfectants or nutrients may be injected into the borehole as the assembly withdraws. Fluid flow of the auxiliary conduit may be used to activate a cut and cap mechanism for containing the sampled core. The auxiliary conduit is formed not to interfere with the insertion of sampling tube into the formation and is outfitted with mechanisms that keep the conduit closed during descent.
    Type: Grant
    Filed: February 17, 2010
    Date of Patent: February 5, 2013
    Inventor: Bijan Danesh
  • Publication number: 20130025943
    Abstract: Disclosed is an apparatus for retrieving a downhole sample. The apparatus includes: a carrier configured to be conveyed through a borehole penetrating an earth formation; a sample capsule configured to be disposed at the carrier and to contain the sample; and a discharge mechanism configured to discharge the sample capsule downhole into drilling fluid in the borehole.
    Type: Application
    Filed: July 28, 2011
    Publication date: January 31, 2013
    Applicant: BAKER HUGHES INCORPORATED
    Inventor: Sunil Kumar
  • Patent number: 8292004
    Abstract: Example downhole marking apparatus and methods to use the same are disclosed. A disclosed example apparatus includes a coring tool assembly for use in extracting a core sample from a subterranean formation adjacent a borehole; a sample container retainer operatively coupled to the coring tool assembly, wherein the sample container retainer is configured to hold a sample container configured to receive the core sample; and a scriber operatively coupled to the sample container retainer and configured to mark a surface of the sample container.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: October 23, 2012
    Assignee: Schlumberger Technology Corporation
    Inventors: Steven E. Buchanan, Adam Walkingshaw, Alex Slocum, Gokhan Erol
  • Patent number: 8162080
    Abstract: In an aspect, an apparatus may include a chamber configured to receive a core at a receiving end of the chamber and a cutting device configured to cut the core at a location distal from the receiving end of the core chamber. In aspects, a method may include drilling into the formation to retrieve a core, receiving the core into a chamber at an open end of a chamber, and cutting the core uphole of the open end of the chamber so as to continue to receive the core into the chamber as the drilling continues.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: April 24, 2012
    Assignee: Baker Hughes Incorporated
    Inventor: Homero Castillo
  • Patent number: 8155377
    Abstract: A method for estimating a relationship between physical properties of a porous material from a sample thereof includes making a three dimensional tomographic image of the sample of the material. The image is segmented into pixels each representing pore space or rock grains. The image is divided into sub-volumes. A porosity is estimated for each sub-volume. At least one petrophysical parameter is modeled from the image of each sub-volume. A relationship between the porosity and the at least one modeled petrophysical parameter is determined by, e.g., a best-fit statistical method. The relationship and the modeled petrophysical parameter for each sub-volume are stored in a computer or displayed.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: April 10, 2012
    Assignee: Ingrain, Inc.
    Inventors: Jack Dvorkin, Naum Derzhi, Meghan Armbruster, Qian Fang, Zbigniew Wojcik
  • Publication number: 20120061147
    Abstract: A coring tool for use in a borehole formed in a subterranean formation includes a tool housing with a coring aperture and a core receptacle. A coring bit is mounted within the tool housing and movable between retracted and extended positions by a series of pivotably connected extension link arms. Another set of link arms rotates the coring bit between coring and eject positions. The coring tool may also include a multi-column core storage magazine with shifters to move cores or core holders between columns. The coring tool may be used to measure core lengths during operation and facilitates retrieval of cores having larger lengths and diameters than conventional sidewall coring tools.
    Type: Application
    Filed: November 21, 2011
    Publication date: March 15, 2012
    Inventors: Lennox Errol Reid, JR., Rachel Agnes Lavaure
  • Patent number: 8109347
    Abstract: The present invention relates to a core catcher and a corer having the same, and more particularly, to a core catcher provided with dual blade radial pins for preventing loss of sediments and a corer having the same.
    Type: Grant
    Filed: May 26, 2008
    Date of Patent: February 7, 2012
    Assignee: Korea Institute of Geoscience and Mineral Resources (KIGAM)
    Inventors: Jae Hwa Jhin, Jun Ho Kim, Min Jun Kim
  • Publication number: 20120000711
    Abstract: An apparatus for conveyance via wireline or drillstring in a wellbore extending into a subterranean formation, the apparatus comprising a coring bit assembly, a first motor operatively coupled to the coring bit assembly via a gear box to rotationally drive the coring bit assembly, and a second motor to drive the coring bit assembly into the formation while the coring bit assembly is rotated by the first motor, wherein the coring bit assembly comprises a feature to permit the coring bit assembly to be broken when the coring bit assembly becomes stuck in the formation.
    Type: Application
    Filed: September 12, 2011
    Publication date: January 5, 2012
    Inventors: Steven E. Buchanan, Lennox E. Reid, JR., Rachel Lavaure
  • Patent number: 8081802
    Abstract: A method for estimating permeability properties of a porous material from a sample thereof includes making a three dimensional tomographic image of the sample of the material. The image is segmented into pixels each representing pore space or rock grains. The image is divided into sub-volumes. A porosity is estimated for each sub-volume. The components of a permeability tensor are determined by conducting simulations. Principal permeability values and directions are then calculated. The permeability properties are stored in a computer or displayed.
    Type: Grant
    Filed: November 29, 2008
    Date of Patent: December 20, 2011
    Assignee: Ingrain, Inc.
    Inventors: Jack Dvorkin, Naum Derzhi, Meghan Armbruster, Qian Fang, Zbigniew Wojcik
  • Publication number: 20110297444
    Abstract: A core barrel restraint adapted to prevent inadvertent dropping of a core barrel assembly during retrieval of a core sample can include a cup adapted to fit over an overshot and a brace adapted to be coupled to a core barrel assembly. A cable can connect the cup and brace and prevent the core barrel from falling if the overshot latch mechanism holding the core barrel assembly and overshot together fails.
    Type: Application
    Filed: May 25, 2011
    Publication date: December 8, 2011
    Applicant: LONGYEAR TM, INC.
    Inventors: Emil Kolev, Nathan Kaesler
  • Patent number: 8061446
    Abstract: A coring tool for use in a borehole formed in a subterranean formation includes a tool housing with a coring aperture and a core receptacle. A coring bit is mounted within the tool housing and movable between retracted and extended positions by a series of pivotably connected extension link arms. Another set of link arms rotates the coring bit between coring and eject positions. The coring tool may also include a multi-column core storage magazine with shifters to move cores or core holders between columns. The coring tool may be used to measure core lengths during operation and facilitates retrieval of cores having larger lengths and diameters than conventional sidewall coring tools.
    Type: Grant
    Filed: November 2, 2007
    Date of Patent: November 22, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Lennox Errol Reid, Jr., Rachel Agnes Lavaure
  • 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: 20110247879
    Abstract: A method for detecting the presence of an acid gas in a formation fluid from a subterranean formation comprises (a) lowering a coring assembly into a wellbore. The coring assembly including an outer core barrel and an inner core barrel disposed within the outer core barrel. The inner core barrel has an upper end, a lower end opposite the upper end, and a core sample chamber extending axially from the lower end. In addition, the method comprises (b) capturing a core sample from the subterranean formation within the sample chamber. Further, the method comprises (c) raising the coring assembly to the surface after (b). Still further the method comprises (d) contacting a formation fluid in the sample chamber with at least one detector during (c). Moreover, the method comprises (e) detecting the presence of a formation acid gas in the formation fluid with the at least one detector during (c).
    Type: Application
    Filed: April 8, 2011
    Publication date: October 13, 2011
    Applicants: BP Exploration Operating Company Limited, BP Corporation North America Inc.
    Inventors: Paul Johnston, Debbie Kercho, Kevan Sincock, Ray Wydrinski, Ross Benthien
  • Patent number: 8011454
    Abstract: A method of estimating a property of interest downhole according to one aspect of the disclosure may include continuously receiving a core drilled from a formation into an open end of a chamber while removing the core distal from the open end of the chamber. The method further includes obtaining a measurement relating to property of interest of the core using at least one sensor; and estimating the property of interest of the core using the obtained measurement.
    Type: Grant
    Filed: September 23, 2008
    Date of Patent: September 6, 2011
    Assignee: Baker Hughes Incorporated
    Inventor: Homero C. Castillo
  • Patent number: 7934568
    Abstract: A rock core removal method and apparatus allows efficient, safe, and reliable removal of a rock core sample. An inner collet tube and an outer ground tube, within a drill tube, protect the core sample during drilling. At depth, the collet tube is raised with respect to the ground tube so that the conical wall of the ground tube pushes constricting fingers on the collet tube inward, gripping the core sample within. The collet tube and ground tube are then raised, rotated, or raised and rotated, applying the necessary force to break the core sample off of the substrate. After retracting the tubes, the collet tube is lowered with respect to the ground tube to release the core sample. An ejection rod then pushes the core sample out of the collet tube. The ground tube may also act as the actuating means for a quick-change drill-bit release feature.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: May 3, 2011
    Inventor: Thomas M. Myrick
  • Patent number: 7934569
    Abstract: A method of stabilizing a core sample is described, and an agent for use in the stabilising method. The method involves injecting a foam around a core sample in a cylindrical liner. The foam comprises mixture of a first pressurized polymerisable-based fluid and a second pressurized fluid, which are simultaneously injected as a foam into an annulus between the core sample and liner. The foam preserves the sample and cushions it for transportation. The foam can include a dye or colorant to distinguish the foam from other materials in the core sample.
    Type: Grant
    Filed: May 13, 2008
    Date of Patent: May 3, 2011
    Assignee: Kirk Petrophysics Limited
    Inventors: Jean-Valery Sylvain Garcia, Philippe Cravatte
  • Publication number: 20110094801
    Abstract: Example coring apparatus and methods to use the same are disclosed. A disclosed example apparatus includes a housing that is selectively pivotable in a downhole tool, a rotatable coring bit, a gear drive rotatively coupled to the housing, a key member configured to engage an inner surface of the gear drive and an outer surface of the coring bit and configured to maintain a rotational relationship between the coring bit and the gear drive, a pinion rotatively coupled to the housing, the pinion configured to engage an outer surface of the gear drive, and a motor affixed to the housing and operatively coupled to the pinion, wherein the gear drive, the key member, the pinion and the motor are configured to pivot in unison with the housing.
    Type: Application
    Filed: October 22, 2009
    Publication date: April 28, 2011
    Inventors: Steven E. Buchanan, Lennox E. Reid, JR., Rachel Lavaure
  • Patent number: 7913775
    Abstract: A core sample acquisition device includes a core receiving barrel configured to couple to a drill string proximate a core drilling bit. The device includes a sensor for determining a property of a core sample urged into the receiving barrel by drilling the core sample. The sample acquisition device includes a communication device for transmitting signals from the sensor over at least one of an electrical and an optical communication channel associated with the drill string.
    Type: Grant
    Filed: December 27, 2007
    Date of Patent: March 29, 2011
    Assignee: Schlumberger Technology Corporation
    Inventors: Benjamin P. Jeffryes, Lee Dolman
  • Patent number: 7878271
    Abstract: A drill bit (20) for connection to a casing string (R), wherein the bit (20) comprises an annular bit face (21) which is built-up by a matrix and which comprises a sintered diamond-metal powder mixture, wherein the bit face (21) includes a plurality of radially orientated liquid delivery slots (16, 23, 26) for cooling and cleansing the bit face (21), wherein at least one of the liquid delivery slots is comprised of an inner slot (23) which extends radially outwards from the inside (24) of the bit face (21), wherein the slot (23) is terminated with an inner bottom (24) in the bit face (21), wherein a further liquid delivery slot comprises an outer slot (26) that extends radially inwards from the outside (27) of the bit face, and wherein said outer slot is terminated with an outer bottom (28) in the bit face (21).
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: February 1, 2011
    Assignee: Atlas Copco Craelius AB
    Inventor: Göran Larbo
  • Publication number: 20100282516
    Abstract: Methods comprising: lowering a downhole tool into a wellbore extending into a subterranean formation, wherein the downhole tool comprises a coring tool and a measurement tool; performing a measurement regarding the formation using the measurement tool; determining a section of interest within the formation relative to an axis of the coring tool based on the measurement; orienting a coring bit of the coring tool relative to the section of interest; and extending the oriented coring bit into the formation.
    Type: Application
    Filed: May 7, 2010
    Publication date: November 11, 2010
    Inventors: Steve E. Buchanan, Julian J. Pop, Carsten Sonne, Gokhan Erol
  • Publication number: 20100133014
    Abstract: The present invention relates to a core catcher and a corer having the same, and more particularly, to a core catcher provided with dual blade radial pins for preventing loss of sediments and a corer having the same.
    Type: Application
    Filed: May 26, 2008
    Publication date: June 3, 2010
    Applicant: Korea Institute of Geoscience and Mineral Resource (KIGAM)
    Inventors: Jae Hwa Jhin, Jun Ho Kim, Min Jun Kim
  • Patent number: 7665542
    Abstract: A core barrel capacity gauge for use on a core barrel assembly having a barrel for receiving a core sample. The core barrel capacity gauge includes a core sample marker located within the barrel such that the core sample marker rests against the top of the drilled core sample and a marker location sensor. The marker location sensor is arranged to detect the location of the core sample marker within the barrel.
    Type: Grant
    Filed: December 2, 2005
    Date of Patent: February 23, 2010
    Assignee: Coretrack Ltd.
    Inventor: Damian Jonathon Stockton
  • Publication number: 20090114447
    Abstract: A coring tool for use in a borehole formed in a subterranean formation includes a tool housing with a coring aperture and a core receptacle. A coring bit is mounted within the tool housing and movable between retracted and extended positions by a series of pivotably connected extension link arms. Another set of link arms rotates the coring bit between coring and eject positions. The coring tool may also include a multi-column core storage magazine with shifters to move cores or core holders between columns. The coring tool may be used to measure core lengths during operation and facilitates retrieval of cores having larger lengths and diameters than conventional sidewall coring tools.
    Type: Application
    Filed: November 2, 2007
    Publication date: May 7, 2009
    Inventors: Lennox Errol Reid, JR., Rachel Agnes Lavaure
  • Publication number: 20090078467
    Abstract: An apparatus made according to one embodiment may include a chamber configured to receive a core at a receiving end of the chamber and a cutting device configured to cut the core at a location distal from the receiving end of the core chamber. A method according to one aspect of the disclosure may include drilling into the formation to retrieve a core, receiving the core into a chamber at an open end of a chamber, and cutting the core uphole of the open end of the chamber so as to continue to receive the core into the chamber as the drilling continues.
    Type: Application
    Filed: September 23, 2008
    Publication date: March 26, 2009
    Applicant: Baker Hughes Incorporated
    Inventor: Homero C. Castillo
  • Publication number: 20090038853
    Abstract: An apparatus and method for mini core in drilling samples accumulated in the cups by sample catcher. It allows the explorations to obtain high resolution formation evaluation on drilling cuttings samples. The mini core apparatus includes a narrow tubular with a piston or cap. The thin wall tubular is rotated and/or vibrated and pressed in to the cup with wet sample of drilling cuttings. The piston or cap is placed after the desired depth of sample is reached and the vacuum is re-established. The core is pulled out from the cup and then analyzed within the tubular or squeezed out on a flat tray for horizontal analysis. The micro layering can be visually separated, before they are mixed as in conventional sample and the information is lost.
    Type: Application
    Filed: August 29, 2008
    Publication date: February 12, 2009
    Inventor: Konstandinos Zamfes
  • 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: 7347284
    Abstract: The present invention is directed to an apparatus and method for coring a borehole in a hard rock sidewall of a well bore in a subterranean formation for testing purposes. The apparatus includes a drive motor for operation down hole, a flexible drive shaft coupled to the drive motor and a coring bit coupled to the flexible drive shaft, such that the coring bit is directly driven by the drive motor. The apparatus also includes a control circuit for controlling advancement of the coring bit into the subterranean formation. The apparatus also includes a rotating carousel for storing multiple core samples. The method includes the steps of activating the drive motor to rotate the output shaft; coupling the output shaft of the drive motor to the flexible drive shaft and rotating the coring bit with the flexible drive shaft.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: March 25, 2008
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Abbas Arian, Bruce Mackay, Randall Jones, Ken Smith, Wes Ludwig