Timothy R Hunter

US Patent:

20120118568, May 17, 2012

Filed:

Nov 11, 2010

Appl. No.:

12/944010

Inventors:

Mark Kleefisch - Plainfield IL, US
Colin Hawthorn - Barrington IL, US
Henry David Reynolds - Gurnee IL, US
Neal Gregory Skinner - Lewisville TX, US
Jim Basuki Surjaatmadja - Duncan OK, US
Roger Lynn Schultz - Ninnekah OK, US
Timothy Holiman Hunter - Duncan OK, US

Assignee:

HALLIBURTON ENERGY SERVICES, INC. - Houston TX
GAS TECHNOLOGY INSTITUTE - Des Plaines IL

International Classification:

E21B 43/11

US Classification:

166297

Abstract:

A method for wellbore perforation in which a section of the wellbore to be perforated is isolated and purged of wellbore fluid to provide a clear path for laser beam transmittal. A laser beam emitter in the purged wellbore section transmits a laser beam pulse from the laser beam emitter to a target area of a sidewall and formation lithology of the purged wellbore section, thereby altering a mechanical property of a material of the sidewall and formation lithology and producing material debris. A liquid jet pulse of a liquid is transmitted immediately following termination of the laser beam pulse to the target area, thereby removing the material debris from the target area. This cycle is then repeated until the desired perforation depth has been achieved.

US Patent:

20120195334, Aug 2, 2012

Filed:

Jan 28, 2011

Appl. No.:

13/015632

Inventors:

Lloyd WILKIEL - Westchester IL, US
Neal Gregory SKINNER - Lewisville TX, US
Timothy Holiman HUNTER - Duncan OK, US

Assignee:

HALLIBURTON ENERGY SERVICES, INC. - Houston TX
GAS TECHNOLOGY INSTITUTE - Des Plaines IL

International Classification:

H01S 3/10

US Classification:

372 26

Abstract:

An apparatus for laser drilling including a laser beam emitter disposed within a housing having at least one laser beam outlet and at least one purge fluid outlet. At least one actuated nozzle is disposed within the housing for providing a purge fluid through the purge fluid outlet and having functional control for synchronized programmable activation patterns. Laser beam control is provided for directing a laser beam over a target surface.