Petroleum underground laser perforation well completion device

A kind of oil well and laser technology, which is applied in the direction of wellbore/well components, production fluid, earthwork drilling and production, etc. It can solve the problems of reducing the efficiency of laser perforation operation, low perforation efficiency, and uncontrollable perforation direction, etc., to achieve Improving the efficiency of laser perforation operation and the effect of improving operation efficiency
CN102155199AInactive Publication Date: 2011-08-17NORTHWEST UNIV(CN)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NORTHWEST UNIV(CN)
Publication Date
2011-08-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of oil well completion device, specifically relating to a petroleum underground laser perforation well completion device. The device mainly comprises a laser light source, a high pressure gas source and an underground laser perforator. The laser source is capable of producing high energy lasers, and the underground laser perforator comprises at least two sets of laser perforation devices which are connected with each other in sequence, wherein each set of laser perforation device is responsible for petroleum underground single-hole perforation work; and after being effectively combined, the two sets of laser perforation can control multi beam high energy lasers simultaneously so as to perform petroleum underground laser perforation work. The device has great perforation depth, is flexible and controllable in perforation direction, enhances stratum permeability, has high perforation efficiency, and improves the oil well productivity obviously.
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Description

Technical field

[0001] The present invention belongs to the technology field of oil wells, and it involves a kind of oil -filled well -ended well -ended well. Background technique

[0002] Petroleum well -sub -well -e -hole technology belongs to a kind of oil well finishing technology. Specifically, it refers to opening the well tube, cement layer and strata, and establishing a flow channel between strata and well tube.At present, it is generally used to use the methods such as bullets or poly energy explosives to perform the sub -shaft shooting holes. However, these methods are shallow and the direction of the ejaculation hole is unavailable, and the compact effect of the formation will cause a decrease in the penetration of the formation.These problems have always affected the undercuts under the oil well, limiting the improvement of oil well production capacity.The use of high -power lasers for oil wells to effectively solve the above problems. There are fewer research reports...

Claims

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