Systems and methods for inline chemical injection for dump flood water injectors
US-2015376998-A1 · Dec 31, 2015 · US
Method and apparatus for wellbore perforation
US9022115B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9022115-B2 |
| Application number | US-94401010-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 11, 2010 |
| Priority date | Nov 11, 2010 |
| Publication date | May 5, 2015 |
| Grant date | May 5, 2015 |
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Abstract
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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.
First claim
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We claim: 1. A method for wellbore perforation comprising the steps of: a) purging wellbore fluid from a wellbore section of a wellbore using a pressurized gaseous fluid, producing a purged wellbore section; b) providing a laser beam emitter in said purged wellbore section; c) transmitting a laser beam pulse from said laser beam emitter to a target area of a sidewall of said purged wellbore section, thereby altering a mechanical property of a material of said sidewall, forming…
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- What does patent US9022115B2 cover?
- 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 mec…
- Who is the assignee on this patent?
- Kleefisch Mark, Hawthorn Colin, Reynolds Henry David, and 6 more
- What technology area does this patent fall under?
- Primary CPC classification E21B43/11. Mapped technology areas include Fixed Constructions.
- When was this patent published?
- Publication date Tue May 05 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).