Peter R Marshall

US Patent:

7334966, Feb 26, 2008

Filed:

Oct 28, 2003

Appl. No.:

10/533386

Inventors:

Peter Marshall - Houston TX, US
Stephen J. Kennedy - Ottawa, CA

Assignee:

Intelligent Engineering (Bahamas) Limited - Nassau

International Classification:

E02B 17/00

US Classification:

405211, 405216

Abstract:

A tubular structure is reinforced or reinstated by providing a reinforcing layer in its interior in spaced relation to the existing structure so that a cavity is formed. Plastics or polymer material, preferably a compact elastomer, is injected into the cavity and cures to bond the existing structure and reinforcing layer together so that shear forces are transferred and the reinforced structure behaves as a composite body.

US Patent:

RE326232, Mar 15, 1988

Filed:

Oct 14, 1986

Appl. No.:

6/918195

Inventors:

Peter W. Marshall - Houston TX
Peter Arnold - Mandeville LA
Francis P. Dunn - Kingwood TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

E21B 704
E21B 7136
E21B 1700

US Classification:

175 9

Abstract:

Apparatus and method for producing hydrocarbons from a subterranean hydrocarbon-bearing formation located beneath the floor of a body of water. A platform structure is installed on the floor over the formation and well conductors are extended down the structure and penetrate into the floor of the body of water. The conductors may include an upper vertical portion, then continually curve downwardly and outwardly through the structure above the floor in a manner maintaining a relatively smooth bore throughout the entire extent of the conductors. The conductors are extended into the floor of the body of water and wells are drilled, via the conductors, down into communication with the formation. Formation fluids are then produced from the formation via the conductors. This is a Reissue of a Patent which was the subject of a Reexamination Certificate No. B1 Re.

US Patent:

46219498, Nov 11, 1986

Filed:

Dec 24, 1984

Appl. No.:

6/685654

Inventors:

Peter W. Marshall - Houston TX
Paul R. Johnson - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

E02B 1702

US Classification:

405202

Abstract:

A flexure joint is formed at the base of a buoyant tower structure by piles driven into the ocean floor. The geometric arrangement of these piles increases the buoyant tower's resistance to lateral forces at the base, while allowing rotational displacement about any horizontal axis, and also allows wells to be directed through the piles to formations located a substantial distance from the tower.

US Patent:

46338012, Jan 6, 1987

Filed:

May 9, 1985

Appl. No.:

6/732109

Inventors:

Peter W. Marshall - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

E21B 712

US Classification:

114266

Abstract:

The apparatus of the present invention comprises a compliant structure for use in reducing bending stress at the ends of an elongated cylindrical tether which may, for example, be used to connect a floating platform supported by a body of water to the floor thereof. The apparatus comprises a plurality of tubular support members concentrically arranged about the elongated cylindrical tether at the tether's end connection. Each tubular support member is connected to each adjacent tubular support member in a manner that allows the entire assembly of tubular members to deflect in unison as the cylindrical tether deflects.

US Patent:

54473926, Sep 5, 1995

Filed:

May 3, 1993

Appl. No.:

8/057076

Inventors:

Peter W. Marshall - Houston TX

Assignee:

Shell Oil Company - Houston TX

International Classification:

E02B 1700

US Classification:

4052244

Abstract:

An improved support system is disclosed for providing flexibility to a restrained termination of a highly pressurized, highly tensioned tubular element which extends from a subsea facility to a compliant structure. The tubular element is provided with an intermediate tension relief connection which separates a running span from a backspan and operably connects the tubular element to a support structure, transfering thereto a significant portion of the tension carried by the tubular element. This connection passes angular rotation of the tubular element but resists lateral motion, in effect forming a node in the deflection of the tubular element. A backspan is thus created in the tubular element having a tension load which is reduced from that in the running span, thereby increasing the flexibility apparent at the end of the running span, while maintaining a relatively restrained termination of the tubular element at the distal end of the backspan. Another aspect of the present invention is a method for increasing the flexibility at a termination of a highly tensioned, pressurized tubular element connecting a subsea facility to a compliant structure.