Keith Adarin Scott

US Patent:

20140020903, Jan 23, 2014

Filed:

Jul 18, 2012

Appl. No.:

13/878599

Inventors:

Keith Wayne Scott - Lavon TX, US
William David Henderson - Tioga TX, US
Douglas Allen Schafer - Euless TX, US

Assignee:

Halliburton Energy Services, Inc. - Houston TX

International Classification:

E21B 34/10

US Classification:

166319, 166374

Abstract:

An apparatus for isolating a first zone from a second zone in a subterranean wellbore. The apparatus includes an outer tubular and an inner tubular disposed within the outer tubular forming an annular flow path therebetween that is in fluid communication with the first zone. The inner tubular defines a central flow path that is in fluid communication with the second zone. A sleeve having at least one seal is positioned in the annular flow path and is axially movable relative to the inner and outer tubulars between a closed position wherein the seal engages the inner tubular and an open position wherein the seal engages the outer tubular. A mandrel is slidably disposed within the inner tubular and is coupled to the sleeve. The mandrel is operable to shift the sleeve between the open position and the closed position responsive to changes in pressure within the central flow path.

US Patent:

50074792, Apr 16, 1991

Filed:

Oct 11, 1989

Appl. No.:

7/423483

Inventors:

Charles W. Pleasants - Carrollton TX
Keith W. Scott - Farmersville TX

Assignee:

Otis Engineering Corporation - Dallas TX

International Classification:

E21B 31113

US Classification:

166178

Abstract:

A hydraulic jar for use in a well and a method of operating same in which an outer housing assembly extends around an inner mandrel assembly in a coaxial relation thereto to define two fluid chambers separated by a piston. The housing assembly is movable relative to the mandrel assembly to force the fluid from one of the chambers to the other. The fluid flow rate is varied between a relative low flow rate and a relative high flow rate in response to the relative position of the housing assembly causing corresponding movement at the latter assembly. A high impact load is transferred to a member connected to the jar in response to a movement at the relatively high flow rate. The jar can be used to create a high impact load in both an upward direction and a downward direction.

US Patent:

54817145, Jan 2, 1996

Filed:

Oct 18, 1993

Appl. No.:

8/138328

Inventors:

Darryl Pipkin - Colleyville TX
Eddie Rogers - Carrollton TX
Linda Jones-Scott - Keller TX
Keith T. Scott - Keller TX

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 9445

US Classification:

395700

Abstract:

An installation of a new operating system on a data processing system can be aborted, wherein an old operating system, which is already resident on the data processing system, can be reused. During the installation of the new operating system, temporary files of the new operating system are built on the data processing system, based on information provided by a user. This information may be provided by voice input. After building the temporary files, the user is given an opportunity to abort the installation. If the user elects to abort the installation, then the temporary files of the new operating system are deleted and use of the old operating system continues. If the user elects to continue with the installation, then the new operating system is installed onto the data processing system.