Patents Assigned to Dresser Industries, Inc.
  • Patent number: 6899197
    Abstract: An acoustic logging tool including an elongated body, one or more acoustic transmitters, one or more acoustic receivers, and a broadband acoustic absorption region. A substantial portion of the broadband acoustic absorption region is between the transmitter and the receiver. The acoustic energy absorber includes a first absorber for absorbing a first mode of acoustic energy and a second absorber for absorbing a second mode of acoustic energy. The acoustic absorption material used to make the acoustic absorbers has an acoustic impedance between 20% and 120% of the material used to construct the acoustic logging tool. The acoustic logging tool includes an elongated hollow tool body, an insert configured to be inserted into the tool body, and a ring configured to be inserted onto the insert. A first element is supported by the ring and exposed to a pressure field, and a second element is supported by the ring and exposed to a pressure field.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: May 31, 2005
    Assignee: Dresser Industries, Inc.
    Inventors: Abbas Arian, Laurence T. Wisniewski, Georgios L. Varsamis, Gary L. Fickert
  • Patent number: 6564899
    Abstract: An acoustic logging tool including an elongated body, one or more acoustic transmitters, one or more acoustic receivers, and a broadband acoustic absorption region. A substantial portion of the broadband acoustic absorption region is between the transmitter and the receiver. The acoustic energy absorber includes a first absorber for absorbing a first mode of acoustic energy and a second absorber for absorbing a second mode of acoustic energy. The acoustic absorption material used to make the acoustic absorbers has an acoustic impedance between 20% and 120% of the material used to construct the acoustic logging tool. The acoustic logging tool includes an elongated hollow tool body, an insert configured to be inserted into the tool body, and a ring configured to be inserted onto the insert. A first element is supported by the ring and exposed to a pressure field, and a second element is supported by the ring and exposed to a pressure field.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: May 20, 2003
    Assignee: Dresser Industries, Inc.
    Inventors: Abbas Arian, Laurence T. Wisniewski, Georgios L. Varsamis, Gary L. Fickert
  • Patent number: 6552962
    Abstract: The invention is a method and apparatus for acoustic logging including one or more acoustic transmitters and one or more acoustic receivers. One or more of the elements of a set made up of the acoustic receivers and acoustic transmitters are spaced radially apart from one or more of the remaining elements of the set. The acoustic receivers and acoustic transmitters are configured along with electronics and software incorporated in the tool to allow the acoustic receivers and acoustic transmitters to act as multi-pole receivers and multi-pole transmitters, respectively. The tool is configured to compute one or more acoustic velocities and to provide storage for unprocessed and processed, compressed and error correction coded data. The tool is configured to provide the data for transmission to the surface.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: April 22, 2003
    Assignee: Dresser Industries, Inc.
    Inventors: Georgios L. Varsamis, Laurence T. Wisniewski, Abbas Arian
  • Publication number: 20030052185
    Abstract: An acoustic logging tool including an elongated body, one or more acoustic transmitters, one or more acoustic receivers, and a broadband acoustic absorption region. A substantial portion of the broadband acoustic absorption region is between the transmitter and the receiver. The acoustic energy absorber includes a first absorber for absorbing a first mode of acoustic energy and a second absorber for absorbing a second mode of acoustic energy. The acoustic absorption material used to make the acoustic absorbers has an acoustic impedance between 20% and 120% of the material used to construct the acoustic logging tool. The acoustic logging tool includes an elongated hollow tool body, an insert configured to be inserted into the tool body, and a ring configured to be inserted onto the insert. A first element is supported by the ring and exposed to a pressure field, and a second element is supported by the ring and exposed to a pressure field.
    Type: Application
    Filed: September 23, 2002
    Publication date: March 20, 2003
    Applicant: Dresser Industries, Inc.
    Inventors: Abbas Arian, Laurence T. Wisniewski, Georgios L. Varsamis, Gary L. Fickert
  • Patent number: 6476609
    Abstract: This invention is directed to a downhole method and apparatus for simultaneously determining the horizontal resistivity, vertical resistivity, and relative dip angle for anisotropic earth formations. The present invention accomplishes this objective by using an antenna configuration in which a transmitter antenna and a receiver antenna are oriented in non-parallel planes such that the vertical resistivity and the relative dip angle are decoupled. Preferably, either the transmitter or the receiver is mounted in a conventional orientation in a first plane that is normal to the tool axis, and the other antenna is mounted in a second plane that is not parallel to the first plane. This invention also relates to a method and apparatus for steering a downhole tool during a drilling operation in order to maintain the borehole within a desired earth formation.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: November 5, 2002
    Assignee: Dresser Industries, Inc.
    Inventor: Michael S. Bittar
  • Publication number: 20020154028
    Abstract: A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casing sensor may be coupled to the transmitter. A drill string actuator may be controllable through the downhole receiver.
    Type: Application
    Filed: June 11, 2002
    Publication date: October 24, 2002
    Applicant: Dresser Industries, Inc.
    Inventors: Jean Michel Beique, Morris Benjamin Robbins
  • Publication number: 20020154027
    Abstract: A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casing sensor may be coupled to the transmitter. A drill string actuator may be controllable through the downhole receiver.
    Type: Application
    Filed: June 11, 2002
    Publication date: October 24, 2002
    Applicant: Dresser Industries, Inc.
    Inventors: Jean Michel Beique, Morris Benjamin Robbins
  • Publication number: 20020149500
    Abstract: A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casing sensor may be coupled to the transmitter. A drill string actuator may be controllable through the downhole receiver.
    Type: Application
    Filed: June 11, 2002
    Publication date: October 17, 2002
    Applicant: Dresser Industries, Inc.
    Inventors: Jean Michel Beique, Morris Benjamin Robbins
  • Publication number: 20020149499
    Abstract: A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casing sensor may be coupled to the transmitter. A drill string actuator may be controllable through the downhole receiver.
    Type: Application
    Filed: June 11, 2002
    Publication date: October 17, 2002
    Applicant: Dresser Industries, Inc.
    Inventors: Jean Michel Beique, Morris Benjamin Robbins
  • Publication number: 20020149501
    Abstract: A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casing sensor may be coupled to the transmitter. A drill string actuator may be controllable through the downhole receiver.
    Type: Application
    Filed: June 11, 2002
    Publication date: October 17, 2002
    Applicant: Dresser Industries, Inc.
    Inventors: Jean Michel Beique, Morris Benjamin Robbins
  • Patent number: 6429784
    Abstract: A casing sensor and methods for sensing using a casing sensor are disclosed. The casing sensor includes a casing shoe and a sensor coupled to the casing shoe. A casing data relay includes a downhole receiver coupled to a well casing and a transmitter coupled to the receiver. The casing sensor may be coupled to the transmitter. A drill string actuator may be controllable through the downhole receiver.
    Type: Grant
    Filed: February 19, 1999
    Date of Patent: August 6, 2002
    Assignee: Dresser Industries, Inc.
    Inventors: Jean Michel Beique, Morris Benjamin Robbins
  • Patent number: 6415687
    Abstract: A rotary cone drill bit is provided with at least one cutter cone assembly having a machined cutting structure which will maintain an effective cutting profile despite abrasion, erosion and/or wear of the associated cutting elements. The machined cutting structure may be formed on a generally cone shaped blank by a series of lathe turns and/or plunge cuts. The cutting elements may be formed with an aggressive cutting profile. For one application, the crest of each cutting element has the general configuration of an ogee curve. A layer of hardfacing material may be applied over all or selected portions of the machined cutting structure.
    Type: Grant
    Filed: February 2, 2001
    Date of Patent: July 9, 2002
    Assignee: Dresser Industries, Inc.
    Inventor: William C. Saxman
  • Patent number: 6392561
    Abstract: The invention relates to a data transmission or telemetry system and a method for communicating information axially along a drill string. The method includes the step of conducting an axial electrical signal embodying the information between a first axial position in the drill string and a second axial position in the drill string through an axial conducting loop formed by the drill string, which axial conducting loop extends between the first and second axial positions. The system includes the axial conducting loop for conducting the axial electrical signal embodying the information between the first and second axial positions and a transmitter for transmitting the information to the axial conducting loop. The system further preferably includes a receiver for receiving the information from the axial conducting loop. Finally, the portion of the drill string forming the axial conducting loop is preferably comprised of a downhole motor drilling assembly.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: May 21, 2002
    Assignee: Dresser Industries, Inc.
    Inventors: Evan L. Davies, Gary L. Donison, Boguslaw Wiecek
  • Patent number: 6390209
    Abstract: A pressure compensating assembly for use in roller cone drilling bits of the sealed bearing type. The compensating assembly includes a hollow body arranged to fit into a cavity in the bit connected with the lubrication system of the bit and the hollow body includes a normally open lubricant passageway extending therethrough. A seal encircles the body on one side of the lubricant passageway and is arranged to sealingly engage the bit and an elastomeric, cup-shaped diaphragm is located on the body and has a lip arranged to sealingly engage the bit on the other side of the lubricant passageway. The diaphragm having a protuberance on the side of the diaphragm facing the passageway and sized to enter and close the passageway. The body, seal, and diaphragm being assembled into a unitary cartridge for introduction into the bit as a unit.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: May 21, 2002
    Assignee: Dresser Industries, Inc.
    Inventor: William C. Saxman
  • Patent number: 6366531
    Abstract: The invention is a method and apparatus for acoustic logging including one or more acoustic transmitters and one or more acoustic receivers. One or more of the elements of a set made up of the acoustic receivers and acoustic transmitters are spaced radially apart from one or more of the remaining elements of the set. The acoustic receivers and acoustic transmitters are configured along with electronics and software incorporated in the tool to allow the acoustic receivers and acoustic transmitters to act as multi-pole receivers and multi-pole transmitters, respectively. The tool is configured to compute one or more acoustic velocities and to provide storage for unprocessed and processed, compressed and error correction coded data. The tool is configured to provide the data for transmission to the surface.
    Type: Grant
    Filed: September 22, 1998
    Date of Patent: April 2, 2002
    Assignee: Dresser Industries, Inc.
    Inventors: Georgios L. Varsamis, Laurence T. Wisniewski, Abbas Arian
  • Patent number: 6341656
    Abstract: The invention concerns a core barrel, in particular in the field of oil exploration, comprising at least an outer tube (2) and a core bit (3) forming an outer assembly (4) and at least an inner tube (5) forming with a drilling core optionally present therein, and optionally with part of the groups arranged under the drilling core base, an inner assembly (7), suspension and/or guiding means being provided for maintaining the inner assembly (7) inside the outer assembly (4), the suspension and/or guiding means being further arranged such that the inner assembly (7) maintains at least perpendicular to these means (9), with respect to the outer assembly (4), a predetermined axial and/or radial and/or angular freedom of movement greater than usual.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: January 29, 2002
    Assignee: Dresser Industries, Inc.
    Inventors: Philippe Fanuel, Paul Serron
  • Patent number: 6296056
    Abstract: Subsurface wellbore conditions are measured directly in the wellbore while the fluid circulation system is not pumping. The measured values are recorded at the subsurface location and subsequently transmitted to the well surface when circulation is resumed using fluid pulse telemetry (FPT). Real-time measurements made/when the fluids are circulating are transmitted real time using FPT. Axially spaced measurements are used to obtain differential values. The apparatus of the invention comprises an assembly carried by a drill string that is used to selectively isolate the area within the well that is to be evaluated. The apparatus includes an assembly having axially spaced inflatable well packers that are used to isolate an uncased section of the wellbore. The apparatus is equipped with self-contained measuring and recording equipment, a fluid receiving reservoir, circulation valving, measurement while drilling equipment, and automated controls.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: October 2, 2001
    Assignee: Dresser Industries, Inc.
    Inventor: Christopher D. Ward
  • Patent number: 6296069
    Abstract: A drill bit as used in particular in the oil well drilling field comprising a central body (2), cutting blades (3) protruding with respect to the body (2), both at the front of this body according to a drill direction and at the sides of this same body (2), and cutting elements (9) divided over an outer front surface (10) and over an outer lateral well sizing surface (11) comprised by each blade (3), wherein there are provided as cutting elements: in a central area (13) of the front surface (10), on at least one blade (3): at least one synthetic polycrystalline diamond compact cutting disc (12), and in a remaining area (14) of the front surface (10) of this blade, situated beyond said central area (13) with respect to the rotation axis, and on the other blades: thermally stable synthetic diamonds and/or impregnated diamond particles.
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: October 2, 2001
    Assignee: Dresser Industries, Inc.
    Inventors: Etienne Lamine, Robert Delwiche
  • Patent number: 6283233
    Abstract: A drill and/or core tool, in particular for oil drilling and/or coring, comprising a body (2) showing a substantially cylindrical peripheral surface (3) and a front (4), blades (5) which extend from the front (4) till over the peripheral surface (3) and which show each a leading edge (6), possibly PDC cutting elements (7) which are situated at least in a central area (15A) of the front (4) and the longitudinal axes of which are transverse to the rotation axis of the tool (1), and comprising moreover, on at least one blade (5), outside said central area (15A): PDC (7C) and/or secondary (10) cutting elements which show each a cutting edge (8), forming together the leading edge (6) of the blade (5), and the longitudinal axis of which is transverse to the rotation axis, and at least one associated cutting element (10A) which is situated behind at least one of the PDC (7C) or secondary (10) cutting elements, which shows a cross-section of the same shape, at least for its portion protruding from the blade (5), than
    Type: Grant
    Filed: July 19, 1999
    Date of Patent: September 4, 2001
    Assignee: Dresser Industries, Inc
    Inventors: Etienne Lamine, Sebastian Desmette, C├ęcile Josse
  • Patent number: 6282951
    Abstract: A fluid flow system, casing and method according to which a chamber is formed in the casing and at least one conduit is coupled to the casing so that fluid passes from the conduit and into the chamber and so that forces acting on the conduit creates stresses on the casing that causes flexure of the casing. At least one groove is formed in the wall of the casing defining the chamber, and is configured and located relative to the chamber to direct the flexure away from the wall of the casing defining the chamber.
    Type: Grant
    Filed: February 2, 1999
    Date of Patent: September 4, 2001
    Assignee: Dresser Industries, Inc.
    Inventors: Thomas H. Loga, Jeffery S. Parker