Patents by Inventor Michael Carmody
Michael Carmody has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6568470Abstract: Downhole wellbore tools are actuated by electrically controllable fluids that are energized by a magnetic field. When energized, the viscosity state of the fluid may be increased by a degree depending on the fluid formulation. Reduction of the controllable fluid viscosity by terminating a magnetic field acting upon the fluid may permit in situ wellbore pressure to displace a tool actuating piston. When the field is de-energized, the controllable fluid viscosity quickly falls thereby permitting the fluid to flow through an open orifice into a low pressure receiving volume. In an alternative embodiment of the invention, an expandable volume fluid may be used against a slip actuating element in the same manner as a fluid pressure motor.Type: GrantFiled: July 27, 2001Date of Patent: May 27, 2003Assignee: Baker Hughes IncorporatedInventors: James Edward Goodson, Jr., Michael Carmody
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Publication number: 20030019622Abstract: Downhole wellbore tools are actuated by electrically controllable fluids energized by a magnetic field for example. When energized, the viscosity state of the fluid may be increased by a degree depending on the fluid formulation. Reduction of the controllable fluid viscosity by terminating a magnetic field acting upon the fluid may permit in situ wellbore pressure to displace a tool actuating piston. Displacement of the tool actuating piston is prevented by the controllable fluid in a viscous state. The viscous state of the fluid is energized by a magnetic field environment. When the field is de-energized, the controllable fluid viscosity quickly falls thereby permitting the fluid to flow through an open orifice into a low pressure receiving volume. In an alternative embodiment of the invention, an expandable volume fluid may be used against a slip actuating element in the same manner as a fluid pressure motor.Type: ApplicationFiled: July 27, 2001Publication date: January 30, 2003Inventors: James Edward Goodson, Michael Carmody
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Patent number: 6484800Abstract: Several downhole flow control devices are disclosed which are meterable and are also capable of shutting of a particular zone in a well. The several embodiments include a multiple valve body, a toroidal inflatable valve, and a series of related choke systems. The downhole flow control choke mechanisms each include a downhole electronics package to provide programming or decision making capacity as well as motor actuation systems. Each choke mechanism also includes a system whereby the device can be converted to manual operation and actuated by a conventional shifting tool.Type: GrantFiled: August 21, 2001Date of Patent: November 26, 2002Assignee: Baker Hughes IncorporatedInventors: Michael A. Carmody, Kevin R. Jones, Robert J. Coon, Douglas J. Murray, Mark E. Hopmann, Steven L. Jennings, Brian A. Roth
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Patent number: 6450255Abstract: Several downhole flow control devices are disclosed which are meterable and are also capable of shutting of a particular zone in a well. The several embodiments include a multiple valve body, a toroidal inflatable valve, and a series of related choke systems. The downhole flow control choke mechanisms each include a downhole electronics package to provide programming or decision making capacity as well as motor actuation systems. Each choke mechanism also includes a system whereby the device can be converted to manual operation and actuated by a conventional shifting tool.Type: GrantFiled: August 21, 2001Date of Patent: September 17, 2002Assignee: Baker Hughes IncorporatedInventors: Michael A. Carmody, Kevin R. Jones, Robert J. Coon, Douglas J. Murray, Mark E. Hopmann, Steven L. Jennings, Brian A. Roth
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Publication number: 20020027002Abstract: Several downhole flow control devices are disclosed which are meterable and are also capable of shutting of a particular zone in a well. The several embodiments include a multiple valve body, a toroidal inflatable valve, and a series of related choke systems. The downhole flow control choke mechanisms each include a downhole electronics package to provide programming or decision making capacity as well as motor actuation systems. Each choke mechanism also includes a system whereby the device can be converted to manual operation and actuated by a conventional shifting tool.Type: ApplicationFiled: August 28, 2001Publication date: March 7, 2002Inventors: Michael A. Carmody, Kevin R. Jones, Robert J. Coon, Douglas J. Murray, Mark E. Hopmann, Steven L. Jennings, Brian A. Roth
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Patent number: 6334486Abstract: Several downhole flow control devices are disclosed which are meterable and are also capable of shutting of a particular zone in a well. The several embodiments include a multiple valve body, a toroidal inflatable valve, and a series of related choke systems. The downhole flow control choke mechanisms each include a downhole electronics package to provide programming or decision making capacity as well as motor actuation systems. Each choke mechanism also includes a system whereby the device can be converted to manual operation and actuated by a conventional shifting tool.Type: GrantFiled: November 3, 2000Date of Patent: January 1, 2002Assignee: Baker Hughes IncorporatedInventors: Michael A. Carmody, Kevin R. Jones, Robert J. Coon, Douglas J. Murray, Mark E. Hopmann, Steven L. Jennings, Brian A. Roth
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Publication number: 20010054504Abstract: Several downhole flow control devices are disclosed which are meterable and are also capable of shutting of a particular zone in a well. The several embodiments include a multiple valve body, a toroidal inflatable valve, and a series of related choke systems. The downhole flow control choke mechanisms each include a downhole electronics package to provide programming or decision making capacity as well as motor actuation systems. Each choke mechanism also includes a system whereby the device can be converted to manual operation and actuated by a conventional shifting tool.Type: ApplicationFiled: August 21, 2001Publication date: December 27, 2001Inventors: Michael A. Carmody, Kevin R. Jones, Robert J. Coon, Douglas J. Murray, Mark E. Hopmann, Steven L. Jennings, Brian A. Roth
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Publication number: 20010054505Abstract: Several downhole flow control devices are disclosed which are meterable and are also capable of shutting of a particular zone in a well. The several embodiments include a multiple valve body, a toroidal inflatable valve, and a series of related choke systems.Type: ApplicationFiled: August 21, 2001Publication date: December 27, 2001Inventors: Michael A. Carmody, Kevin R. Jones, Robert J. Coon, Douglas J. Murray, Mark E. Hopmann, Steven L. Jennings, Brian A. Roth
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Patent number: 6260616Abstract: Several downhole flow control devices are disclosed which are meterable and are also capable of shutting of a particular zone in a well. The several embodiments include a multiple valve body, a toroidal inflatable valve, and a series of related choke systems. The downhole flow control choke mechanisms each include a downhole electronics package to provide programming or decision making capacity as well as motor actuation systems. Each choke mechanism also includes a system whereby the device can be converted to manual operation and actuated by a conventional shifting tool.Type: GrantFiled: October 20, 1998Date of Patent: July 17, 2001Assignee: Baker Hughes IncorporatedInventors: Michael A. Carmody, Kevin R. Jones, Robert J. Coon, Douglas J. Murray, Mark E. Hopmann, Steven L. Jennings, Brian A. Roth
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Patent number: 6173788Abstract: A packer that accommodates a control line or I-wire within its sealing element. The sealing element has a longitudinal groove to accommodate the I-wire or control line such that, when the sealing element is compressed, it closes around the I-wire or control line to envelope it as the sealing element makes peripheral contact with the casing, tubular, or the wellbore. The control line or I-wire does not go through the mandrel or body of the packer, and additional joints used in prior techniques for accommodating control lines or I-wires going around packers is eliminated.Type: GrantFiled: April 7, 1998Date of Patent: January 16, 2001Assignee: Baker Hughes IncorporatedInventors: Jeffrey J. Lembcke, Michael Carmody
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Patent number: 6041857Abstract: Several motor driven embodiments are discussed which provide linear motion to a downhole flow control device. The embodiments employ ball screw assemblies or lead screw assemblies. A device for rotational actuation of a downhole flow control device is also disclosed.Type: GrantFiled: October 14, 1997Date of Patent: March 28, 2000Assignee: Baker Hughes IncorporatedInventors: Michael A. Carmody, Kevin R. Jones, Robert J. Coon, Douglas J. Murray, Mark E. Hopmann, Steven L. Jennings, Wayne Welch, Jeffry Edwards, David Martin
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Patent number: 5906238Abstract: Several downhole flow control devices are disclosed which are meterable and are also capable of shutting of a particular zone in a well. The several embodiments include a multiple valve body, a toroidal inflatable valve, and a series of related choke systems. The downhole flow control choke mechanisms each include a downhole electronics package to provide programming or decision making capacity as well as motor actuation systems. Each choke mechanism also includes a system whereby the device can be converted to manual operation and actuated by a conventional shifting tool.Type: GrantFiled: April 1, 1997Date of Patent: May 25, 1999Assignee: Baker Hughes IncorporatedInventors: Michael A. Carmody, Kevin R. Jones, Robert J. Coon, Douglas J. Murray, Mark E. Hopmann, Steven L. Jennings, Brian A. Roth
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Patent number: 5896924Abstract: Computer control and sensory information are combined with gas lift valve having a plurality of individual openings which are openable or closeable individually to provide varying flow rates of the lift gas. Each of the openings is controlled and is sensitive to downhole sensors.Type: GrantFiled: March 6, 1997Date of Patent: April 27, 1999Assignee: Baker Hughes IncorporatedInventors: Michael A. Carmody, Robert Coon, James H. Kritzler, Brian A. Roth, Terry R. Bussear, Bruce E. Weightman
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Patent number: 5832996Abstract: A downhole controller for a flow control device. The controller is responsive to commands from the surface or from downhole and controls the flow device using a four way solenoid actuated spool valve and a hydraulically actuated piston system connected to the flow control device.Type: GrantFiled: February 14, 1997Date of Patent: November 10, 1998Assignee: Baker Hughes IncorporatedInventors: Michael A. Carmody, Kevin R. Jones, Robert J. Coon, Douglas J. Murray, Mark E. Hopmann, Steven L. Jennings
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Patent number: 4981177Abstract: A downhole tool, such as a safety valve or a stand-alone nipple, has a tubular housing. An axially extending bore is provided in the wall of the housing. A radially extending recess is provided in the internal bore wall of the housing, encompassing the axially extending bore, and a control fluid pipe is passed through the bore and the recess. A cutting tool is mounted for radial movements in the recess and is actuated by downward jarring forces imparted by an auxiliary tool. The control pipe is severed by the cutting element and the lower severed end portion of the control pipe is concurrently crimped to close such end portion.Type: GrantFiled: October 17, 1989Date of Patent: January 1, 1991Assignee: Baker Hughes IncorporatedInventors: Michael A. Carmody, Erik P. V. Eriksen, Lars Vinje
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Patent number: 4944351Abstract: A method and apparatus for replacing a defective downhole well safety valve of the full bore type by a wireline valve sealably insertable in the bore of the housing for the defective valve by wireline and operating the wireline inserted safety valve by fluid pressure supplied through an existing control fluid passage provided in the original safety valve housing. An internally projecting integral protuberance is provided in the bore of the original safety valve housing and a connecting fluid conduit is provided between the interior of the protuberance and the existing control fluid passage. A cutting tool is mounted on an axially shiftable sleeve disposed immediately above the protuberance. The axially shiftable sleeve is manipulated by an auxiliary tool temporarily inserted in the bore of the original valve housing and causing the cutting tool to remove the protuberance and thus establish fluid communication for the control fluid with the internal bore of the original safety valve housing.Type: GrantFiled: October 26, 1989Date of Patent: July 31, 1990Assignee: Baker Hughes IncorporatedInventors: Erik P. V. Eriksen, Brian K. Drakeley, Michael A. Carmody
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Patent number: 4796705Abstract: In a safety valve having an axially shiftable actuating sleeve operable to move a valve head from a closed to an open position, the actuating movement of the actuating sleeve is normally produced by a small diameter piston mounted on an axially extending spindle secured to the valve housing and cooperating with a primary cylinder which is abuttingly secured to the actuating sleeve. A secondary spindle and cooperating cylinder are provided which are supplied with fluid pressure by an entirely separate line extending to the well surface. The second cylinder has only abutting contact with the actuating sleeve and may be utilized to effect the movement of the actuating sleeve in the event of the failure of the primary cylinder. In a modification, a fixed cylinder housing defines a pair of secondary cylinder bores in which secondary rod pistons are slidably mounted to effect the movement of the actuating sleeve.Type: GrantFiled: August 26, 1987Date of Patent: January 10, 1989Assignee: Baker Oil Tools, Inc.Inventors: Michael A. Carmody, Jefferey J. Lembcke
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Patent number: 4503913Abstract: A subsurface control fluid pressure actuated well safety valve employs one or more spindles attached to the valve housing and spindle sleeves attached to a shiftable actuating flow tube. The spindles and spindle sleeves are positioned between the valve housing and the flow tube and a change in the pressure force acting on the spindle and on the spindle sleeve will result in relative movement of the spindle sleeve with respect to the spindle to cause the flow tube actuator to shift and open a fluid transmission conduit.Type: GrantFiled: July 18, 1983Date of Patent: March 12, 1985Assignee: Baker Oil Tools, Inc.Inventor: Michael A. Carmody
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Patent number: 4457376Abstract: The disclosure relates to an improved flapper type saftey valve and valve housing for use in subterranean wells wherein the flapper valve is actuated from a horizontal closed position to a vertical open position by contact with a downwardly moving actuating sleeve. The top surface of the valve is elevated so that the bottom edge of the actuating sleeve always contacts the flapper valve at a position spaced from the axis of the pivot mounting, thereby assuring that the opening force applied to the flapper valve has a maximum moment arm in order to overcome any fluid pressure differential existing across the flapper valve. The valve is mounted in an eccentic bore on an eccentric mounting base and fully opened flapper valve provides maximum flow area through the valve.Type: GrantFiled: May 17, 1982Date of Patent: July 3, 1984Assignee: Baker Oil Tools, Inc.Inventors: Michael A. Carmody, Michael L. Cognevicy
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Patent number: 4427071Abstract: The disclosure relates to an improved flapper type safety valve for use in subterranean wells wherein the flapper valve is actuated from a horizontal closed position to a vertical open position by contact from a downwardly moving actuating sleeve. The top surface of the valve is elevated so that the bottom edge of the actuating sleeve always contacts the flapper valve at a position maximally spaced from the axis of its pivot mounting, thereby assuring that the opening force applied to the flapper valve has a maximum moment arm in order to overcome any fluid pressure differential existing across the flapper valve.Type: GrantFiled: February 18, 1982Date of Patent: January 24, 1984Assignee: Baker Oil Tools, Inc.Inventor: Michael A. Carmody