Invention Grant
- Patent Title: Method and apparatus for wellbore perforation
- Patent Title (中): 井眼穿孔的方法和装置
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Application No.: US12944010Application Date: 2010-11-11
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Publication No.: US09022115B2Publication Date: 2015-05-05
- Inventor: Mark Kleefisch , Colin Hawthorn , Henry David Reynolds , Neal Gregory Skinner , Jim Basuki Surjaatmadja , Roger Lynn Schultz , Timothy Holiman Hunter
- Applicant: Mark Kleefisch , Colin Hawthorn , Henry David Reynolds , Neal Gregory Skinner , Jim Basuki Surjaatmadja , Roger Lynn Schultz , Timothy Holiman Hunter
- Applicant Address: US IL Des Plaines US TX Houston
- Assignee: Gas Technology Institute,Halliburton Energy Services, Inc.
- Current Assignee: Gas Technology Institute,Halliburton Energy Services, Inc.
- Current Assignee Address: US IL Des Plaines US TX Houston
- Agency: Pauley Petersen & Erickson
- Main IPC: E21B43/11
- IPC: E21B43/11 ; E21B7/14 ; E21B36/04

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.
Public/Granted literature
- US20120118568A1 METHOD AND APPARATUS FOR WELLBORE PERFORATION Public/Granted day:2012-05-17
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