George T. Armistead
Engineering at Lapis Crk Ln, Katy, TX
License number
Louisiana PE.0019609
Issued Date
Jul 28, 1981
Expiration Date
Mar 31, 2017
Category
Civil Engineer
Type
Petroleum Engineer
Address
Address
22010 Lapis Creek Ln, Katy, TX 77450
Professional information
Apparatus And Process For Drilling A Borehole In A Subterranean Formation
US Patent:
2013011, May 9, 2013
Filed:
Nov 6, 2012
Appl. No.:
13/669915
Inventors:
George Taylor Armistead - Katy TX, US
Henry Anthony Bergeron - Houston TX, US
Henry Anthony Bergeron - Houston TX, US
Assignee:
Chevron U.S.A. Inc. - San Ramon CA
International Classification:
E21B 4/04, E21B 21/00, E21B 7/24
US Classification:
175 57, 175104
Abstract:
An apparatus and process is disclosed for drilling a borehole into a subterranean formation with reverse circulation of drilling fluid. A tubular drill pipe extends into a subterranean formation. A bottom hole assembly connected to the drill pipe includes a drill bit for excavating the subterranean formation. A downhole motor is adapted for receiving electrical power from a cable extending into the subterranean formation. A downhole pump is powered by the motor and is configured for reverse circulating drilling fluid from the annular space surrounding the drill pipe to the interior space of the drill pipe. The drilling fluid is pumped upwards in the drill pipe by the downhole pump to carry excavated cuttings upwards through the interior space of the drill pipe.
System, Apparatus And Method For Producing A Well
US Patent:
2013006, Mar 21, 2013
Filed:
Aug 14, 2012
Appl. No.:
13/585483
Inventors:
George T. Armistead - Katy TX, US
Assignee:
Chevron, U.S.A. Inc. - San Ramon CA
International Classification:
E21B 43/12, E21B 36/00, E21B 43/38
US Classification:
166265, 166 62, 1661055
Abstract:
A system is provided that is capable of providing heat across a produced interval during oil and gas production to minimize or reduce undesirable formation of gas hydrates in the wellbore. In one embodiment, the configuration provides a means to recycle heat generated by an electrical submersible pump. Heat from the pump may be applied downhole. One configuration is capable of providing for downhole separation of gas from produced fluids to reduce or eliminate gas transit through the pump. A heating element also may apply heat to produced fluids. In one embodiment, a system may provide for the safe containment and control of gas within the wellbore by the utilization of a safety valve.