Bob J Patton

US Patent:

53418867, Aug 30, 1994

Filed:

Jul 27, 1993

Appl. No.:

8/097726

Inventors:

Bob J. Patton - Dallas TX

International Classification:

E21B 704
E21B 4400

US Classification:

175 24

Abstract:

An improved method and apparatus for controlling the direction of advance of a rotary drill to produce a borehole profile substantially as preplanned with minimal curvature while maintaining optimum drilling performance. The preferred embodiment of the system comprises a drill string, a rotatable drill bit carried on said drill string, and a compliant subassembly in said drill string, said compliant subassembly facilitating changes in the direction of drilling of said borehole. The system further comprises a plurality of sensors for measuring strains within the compliant subassembly and for producing data signals corresponding to the strain measurements. A control system is operable to use the data signals to change the direction of the borehole by applying a shear force to the drill bit.

US Patent:

54390648, Aug 8, 1995

Filed:

Oct 9, 1992

Appl. No.:

7/960191

Inventors:

Bob J. Patton - Dallas TX

Assignee:

Patton Consulting, Inc. - Dallas TX

International Classification:

E21B 704
E21B 4400

US Classification:

175 24

Abstract:

An improved method and apparatus for controlling the direction of advance of a rotary drill to produce a borehole profile substantially as preplanned with minimal curvature while maintaining optimum drilling performance. The preferred embodiment of the system comprises a drill string; a rotatable drill bit carried on said drill string; and a compliant subassembly in said drill string, said compliant subassembly facilitating changes in the direction of drilling of said borehole. The system further comprises a plurality of sensors for measuring strains within the compliant subassembly and for producing data signals corresponding to the strain measurements. A control system is operable to use the data signals to change the direction of the borehole by applying a shear force to the drill bit.

US Patent:

52209636, Jun 22, 1993

Filed:

Dec 22, 1989

Appl. No.:

7/455255

Inventors:

Bob J. Patton - Dallas TX

Assignee:

Patton Consulting, Inc. - Dallas TX

International Classification:

E21B 704
E21B 4400

US Classification:

175 24

Abstract:

An improved method and apparatus for automatically controlling the direction of advance of a rotary drill to produce a borehole profile substantially as preplanned with minimal curvature while maintaining optimum drilling performance. The system is capable of storing a planned path for the borehole. Information relating to the profile of the actual drill path is compared to the planned path and an appropriate correction signal is generated and used to cause the borehole to be drilled in accordance with the planned path.

US Patent:

54194059, May 30, 1995

Filed:

Feb 18, 1993

Appl. No.:

8/020032

Inventors:

Bob J. Patton - Dallas TX

Assignee:

Patton Consulting - Dallas TX

International Classification:

E21B 704
E21B 4400

US Classification:

175 27

Abstract:

An improved method and apparatus for automatically controlling the direction of advance of a rotary drill to produce a borehole profile substantially as preplanned with minimal curvature while maintaining optimum drilling performance. The preferred embodiment of the system comprises a drill string; a drill bit; an appropriate motor for rotating said drill bit; a data processing system for storing a planned path; sensors for obtaining information for providing a profile of a drilled path of the borehole; a data processing system for comparing the drilled path with the planned path and for generating a correction signal representing the difference between the drilled path and the planned path; and a control system responsive to the correction signal to cause the drill string to follow a corrected path to cause the drilled borehole to coincide with the planned path.

US Patent:

49571729, Sep 18, 1990

Filed:

Mar 1, 1989

Appl. No.:

7/317634

Inventors:

Bob J. Patton - Dallas TX
C. Mackay Foster - Burleson TX

Assignee:

Patton Consulting, Inc. - Dallas TX

International Classification:

E21B 704
E21B 47022
G01V 308
G01V 326

US Classification:

175 61

Abstract:

An improved system for use in drilling a relief well to intersect a target blowout well. A probable location distribution is used to survey the location of the candidate relief wells and the blowout well. Through the use of the relative probable location distribution, the integral probabilities of find, intercept and collision are calculated. A relief well plan is then optimally designed to drill and insure a high integral probability of a find and intercept and a low probability of a collision. The method provided by the present invention allows a relief well to be drilled in a minimum time with minimum risk exposure.

US Patent:

51039206, Apr 14, 1992

Filed:

Jun 29, 1990

Appl. No.:

7/546440

Inventors:

Bob J. Patton - Dallas TX

Assignee:

Patton Consulting Inc. - Dallas TX

International Classification:

E21B 704
E21B 47022
G01V 308
G01V 326

US Classification:

175 45

Abstract:

An improved system for use in drilling a relief well to intersect a target blowout well. A probable location distribution is used to survey the location of the candidate relief wells and the blowout well. Through the use of the relative probable location distribution, the integral probabilities of find, intercept and collision are calculated. A relief well plan is then optimally designed to drill and insure a high integral probability of a find and intercept and a low probability of a collision. The method provided by the present invention allows a relief well to be drilled in a minimum time with minimum risk exposure.