1
Erik P V Eriksen, Brian K Drakeley, Michael A Carmody: Downhole safety valve for subterranean well and method. Baker Hughes Incorporated, Hubbard Thurman Turner & Tucker, July 31, 1990: US04944351 (77 worldwide citation)

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 con ...


2
Michael A Carmody, Erik P V Eriksen, Lars Vinje: Method and apparatus for establishing communication with a downhole portion of a control fluid pipe. Baker Hughes Incorporated, Jackson and Walker, January 1, 1991: US04981177 (75 worldwide citation)

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 pip ...


3
Bennett M Richard, Michael A Carmody, Matthew J Jabs: Alternative method to cementing casing and liners. Baker Hughes Incorporated, Steve Rosenblatt, February 1, 2005: US06848505 (71 worldwide citation)

A method of sealing casing or liners in a wellbore is described. The stands of casing or liner receive a jacket bonded to the outer surface. Preferably, the jacket is a rubber compound bonded to the outer wall. The formulation responds to well fluids to swell at a predetermined rate. The casing or l ...


4
Michael A Carmody, Michael L Cognevicy: Flapper type safety valve for subterranean wells. Baker Oil Tools, Norvell & Associates, July 3, 1984: US04457376 (62 worldwide citation)

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 el ...


5
Michael A Carmody, Kevin R Jones, Robert J Coon, Douglas J Murray, Mark E Hopmann, Steven L Jennings, Wayne Welch, Jeffry Edwards, David Martin: Motor drive actuator for downhole flow control devices. Baker Hughes Incorporated, Cantor Colburn, March 28, 2000: US06041857 (60 worldwide citation)

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.


6
Michael A Carmody, Kevin R Jones, Robert J Coon, Douglas J Murray, Mark E Hopmann, Steven L Jennings, Brian A Roth: Downhole flow control devices. Baker Hughes Incorporated, Canton Colburn, May 25, 1999: US05906238 (58 worldwide citation)

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 mechanis ...


7
Michael A Carmody, Kevin R Jones, Robert J Coon, Douglas J Murray, Mark E Hopmann, Steven L Jennings, Brian A Roth: Downhole flow control devices. Baker Hughes Incorporated, Cantor Colburn, January 1, 2002: US06334486 (51 worldwide citation)

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 mechanis ...


8
Michael A Carmody, Jefferey J Lembcke: Subsurface well safety valve. Baker Oil Tools, Hubbard Thurman Turner & Tucker, January 10, 1989: US04796705 (42 worldwide citation)

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 coop ...


9
Michael A Carmody, Kevin R Jones, Robert J Coon, Douglas J Murray, Mark E Hopmann, Steven L Jennings: Electro hydraulic downhole control device. Baker Hughes Incorporated, Fishman Dionne Cantor & Colburn, November 10, 1998: US05832996 (38 worldwide citation)

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.


10
Michael A Carmody: Temporary lock-open tool for subterranean well valve. Baker International Corporation, Robert W Pitts, William C Norvell Jr, November 2, 1982: US04356867 (38 worldwide citation)

A method and an apparatus for setting the temporary lock-open mechanism incorporated in a safety valve employed in the subterranean well, the apparatus including an annular mandrel having an external, axially movable, radially expandable collet operated by an axially movable prong concentrically arr ...