Horizontal production-injection well completion structure possessing flow control function

A technology for injection-production wells and well structures, which is applied in wellbore/well components, production fluids, earthwork drilling and production, etc. It can solve the problems of preventing axial channeling of water or gas, inability to apply annular packers, well Wall deformation and other problems, to achieve the effect of low cost, compact filling, and strong anti-channeling ability in the axial direction

Active Publication Date: 2009-01-07
ANTON BAILIN OILFIELD TECH (BEIJING) CO LTD
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Problems solved by technology

[0010] 3. In the injection-production well completion structure, the well wall may be greatly deformed. In the injection-production well with large deformation of the well wall, the annular packer cannot be applied
However, it is difficult to fill sand or ceramsite in horizontal injection-production wells, and there is a problem of inaccurate filling, which fails to prevent the axial channeling of water or gas

Method used

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  • Horizontal production-injection well completion structure possessing flow control function
  • Horizontal production-injection well completion structure possessing flow control function
  • Horizontal production-injection well completion structure possessing flow control function

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Embodiment Construction

[0033] A kind of horizontal injection-production well completion structure with flow control function of the present invention (as shown in Fig. 1, Fig. 2, wherein Fig. 1 represents the horizontal injection-production well completion structure that the well wall of the horizontal section is casing, and Fig. 2 represents the horizontal The section well wall is the horizontal injection-production well completion structure of the open hole wall formed by drilling), including: the well wall 1 and the flow control filter 2, the well wall 1 is composed of the ascending section 4 and the horizontal section 5, and the horizontal section of the well wall The angle between 5 and the horizontal plane is 0 degrees, 10 degrees or 20 degrees, and the front end of the horizontal section 5 of the well wall can be inclined upwards or downwards, and the flow control filter 2 is located on the well wall The horizontal section 5 of the horizontal section 5 is fixedly connected with the well wall 1...

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Abstract

The present invention relates to a horizontal injection-production well completion structure with flow control function. The horizontal injection-production well completion structure comprises a well wall and a flow control filter. The well wall consists of a rising section and a horizontal section. The flow control filter is arranged in the horizontal section of the well wall and is fixedly connected with the well wall. A cavity between the flow control filter and the well wall is filled with glass hollow particles. The horizontal injection-production well completion structure with the flow control function of the present invention has the characteristics of being easy for realizing, low well completion cost and strong function for axial anti-fluid-channeling.

Description

technical field [0001] The invention belongs to the field of oil and natural gas exploitation, in particular to a completion structure of a horizontal injection-production well with a flow control function. Background technique [0002] Horizontal wells are widely used in oil and gas field production due to higher production and other advantages than vertical wells. Horizontal injection-production wells can be used not only for oil or natural gas production, but also for water injection or steam injection or other displacement media to drive the oil or natural gas to be produced around the production well. When it is used for oil or natural gas production, it is called Production well; when it is used for water injection or steam injection or injection of other displacement media, it is called injection well, collectively called injection-production horizontal well. [0003] From the perspective of improving the production effect of horizontal wells, the production of horiz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/12
Inventor 裴柏林
Owner ANTON BAILIN OILFIELD TECH (BEIJING) CO LTD
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