David Lester Malone

US Patent:

6684952, Feb 3, 2004

Filed:

May 17, 2001

Appl. No.:

09/859944

Inventors:

Mark W. Brockman - Houston TX
Herve Ohmer - Houston TX
David L. Malone - Sugar Land TX

Assignee:

Schlumberger Technology Corp. - Sugar Land TX

International Classification:

E21B 4712

US Classification:

16625003, 166 651, 166373, 166 50, 1662426, 3408548

Abstract:

A method and apparatus that allows communications of electrical power and signaling from downhole component to another downhole component employs an inductive coupler assembly. In one arrangement, one portion of the inductive coupler assembly is attached to a production tubing section and the other portion of the inductive coupler assembly is attached to a casing or other liner section. The production tubing inductive coupler portion is electrically connected to a cable over which electrical power and signals may be transmitted. Such power and signals are magnetically coupled to the inductive coupler portion in the casing or liner section and communicated to various electrical devices mounted outside the casing or liner section. In other arrangements, inductive coupler assemblies may be used to couple electrical power and signals from the main bore to components in lateral branches of a multilateral well.

US Patent:

7165618, Jan 23, 2007

Filed:

Nov 4, 2003

Appl. No.:

10/701325

Inventors:

Mark W. Brockman - Houston TX, US
Herve Ohmer - Houston TX, US
David L. Malone - Sugar Land TX, US

Assignee:

Schlumberger Technology Corporation - Sugar Land TX

International Classification:

E21B 43/00

US Classification:

166313, 166 651, 166 50

Abstract:

A method and apparatus that allows communications of electrical power and signaling from downhole component to another downhole component employs an inductive coupler assembly. In one arrangement, one portion of the inductive coupler assembly is attached to a production tubing section and the other portion of the inductive coupler assembly is attached to a casing or other liner section. The production tubing inductive coupler portion is electrically connected to a cable over which electrical power and signals may be transmitted. Such power and signals are magnetically coupled to the inductive coupler portion in the casing or liner section and communicated to various electrical devices mounted outside the casing or liner section. In other arrangements, inductive coupler assemblies may be used to couple electrical power and signals from the main bore to components in lateral branches of a multilateral well.

US Patent:

20030135429, Jul 17, 2003

Filed:

Jan 11, 2002

Appl. No.:

10/043856

Inventors:

Jean-Luc Pous - Houston TX, US
David Malone - Sugar Land TX, US
Ian Schuur - Houston TX, US
Peter Goode - Houston TX, US

International Classification:

G06F015/16

US Classification:

705/027000

Abstract:

A system and method for providing custom engineered products. A customer may select from identified unavailable products, attributes, or variances stored in a memory or may input a desired specification. The processor may then be used to compare the customer selection to available products for alternative suggestions and for advanced material ordering among other uses. The processor may also be used to determine the cost of the resources required to provide the custom engineered product. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

US Patent:

52491617, Sep 28, 1993

Filed:

Aug 21, 1992

Appl. No.:

7/934082

Inventors:

Phillip K. Jones - Houston TX
David Malone - Sugar Land TX

Assignee:

Schlumberger Technology Corporation - Houston TX

International Classification:

H04H 900

US Classification:

367 83

Abstract:

Methods and apparatus for determining whether an encoder of a borehole tool is jammed are disclosed. The borehole tool has a motor with a drive shaft which is coupled to and drives an encoder, a position sensor coupled to the motor for sensing the position of the motor, and a microprocessor coupled to the position sensor and to the motor in a feedback loop, with the microprocessor controlling the movement of the motor based on the sensed position of the motor and the desired position of the motor. The method for determining jamming includes: determining, at a first plurality of times, positions of the motor from the position sensor; determining position errors of the motor from the positions of the motor and desired positions of the motor as determined by the microprocessor; and determining whether the encoder is jammed based on whether the position error exceeds a threshold value. In determining jamming, the microprocessor can also determine the rotational velocity of the motor, and account is taken of whether the motor velocity exceeds a threshold velocity at a time when the position error exceeds its threshold value.