Paul R Hebert

US Patent:

56602340, Aug 26, 1997

Filed:

Feb 1, 1996

Appl. No.:

8/593157

Inventors:

Paul A. Hebert - Houston TX
Lionel J. Milberger - Houston TX
Joseph W. Pallini - Tomball TX

Assignee:

ABB Vetco Gray Inc. - Houston TX
Chevron Corporation - San Francisco CA

International Classification:

E21B 712
E21B 3314
E21B 4301
E21B 4706

US Classification:

166368

Abstract:

A subsea wellhead system is used in areas which have shallow water producing sands. A first string of casing extends from the sea floor through a section of conductor pipe and below the conductor pipe to a point above the water sand. An external wellhead housing having flow ports is supported at the upper end of the conductor pipe. A valve sleeve is located on the exterior of the external wellhead housing. The valve sleeve is movable to a closed position, closing the flow ports. A second string of casing is installed to a point below the water producing formation. An internal wellhead housing is secured to the upper end of the second string of casing, which lands within the external wellhead housing. During cementing of the second string of casing the flow ports are open. After cementing, the valve sleeve is moved to the closed position.

US Patent:

20160023352, Jan 28, 2016

Filed:

Jul 27, 2015

Appl. No.:

14/810349

Inventors:

- Pasadena CA, US
Paul Hebert - Pasadena CA, US
Jeremy C. Ma - Pasadena CA, US
James W. Borders - Pasadena CA, US
Charles F. Bergh - Pasadena CA, US
Nicolas H. Hudson - Pasadena CA, US

International Classification:

B25J 9/06

Abstract:

Robotics platforms in accordance with various embodiments of the invention can be utilized to implement highly dexterous robots capable of whole body motion. Robotics platforms in accordance with one embodiment of the invention include: a memory containing a whole body motion application; a spine, where the spine has seven degrees of freedom and comprises a spine actuator and three spine elbow joints that each include two spine joint actuators; at least one limb, where the at least one limb comprises a limb actuator and three limb elbow joints that each include two limb joint actuators; a tracked base; a connecting structure that connects the at least one limb to the spine; a second connecting structure that connects the spine to the tracked base; wherein the processor is configured by the whole body motion application to move the at least one limb and the spine to perform whole body motion.