Oil gas exploitation apparatus and method

A technology for oil and gas exploitation and oil and gas, which is applied in drilling equipment and methods, production fluids, earthwork drilling and production, etc. It can solve the problems of failure to guarantee the location and development direction of fractures, failure to achieve expected results in reservoir formation reconstruction, and difficulties in the location and direction of fractures. Control and other issues, to achieve the effect of simple and reasonable structure, high safety and reliability, and low construction risk

Inactive Publication Date: 2016-03-30
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

Due to the inhomogeneity of reservoir formation stress, the fracture position and direction are difficult to control
Especially when fracturing open-hole horizontal wells, the large exposed area of ​​the well wall will cause a large amount of fracturing fluid leakage, reducing the effective stimulation area
Therefore, the location and development direction of fractures cannot be guaranteed by hydraulic sandblasting perforation technology, and the stimulation of reservoir formations may not achieve the expected results

Method used

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  • Oil gas exploitation apparatus and method
  • Oil gas exploitation apparatus and method
  • Oil gas exploitation apparatus and method

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with accompanying drawing.

[0036] figure 1 An oil and gas recovery device 100 according to the invention is shown. like figure 1 As shown, the device 100 includes a main pipe 1 , a sub pipe 2 and a driving mechanism 3 . A first through hole 11 , a second through hole 12 and a mounting hole 13 are sequentially arranged on the side wall of the main pipe 1 from upstream to downstream. Wherein, the first through hole 11 and the second through hole 12 are arranged on the same side as the driving mechanism 3 , and the first through hole 11 and the second through hole 12 are respectively located upstream and downstream of the driving mechanism 3 . The mounting hole 13 is located downstream of the second through hole 12 and on the side opposite to the driving mechanism 3 . That is, the mounting holes 13 and the driving mechanism 3 are generally distributed at 180 degrees in the circumferential direction ...

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Abstract

The invention relates to an oil gas exploitation apparatus and method. The apparatus includes a mother pipe, a driving mechanism fixedly arranged on a sidewall of the mother pipe, and a sub-pipe. A penetrating installing hole is arranged on the sidewall of the mother pipe. In the original state, a first end of the sun-pipe is arranged in an inner cavity of the mother pipe, and a second end is arranged in the installing hole. When the liquid is pumped to the mother pipe, the sub-pipe is driven by the driving mechanism to rotate. Meanwhile the sub-pipe extends from the installing hole to a storage stratum under the promotion of a throttling pressure so as to form an oil gas circulating pore passage in the stratum. In the oil gas exploitation process, the oil gas exploitation apparatus has high effectiveness for the storage stratum reconstruction and good oil gas output.

Description

technical field [0001] The invention belongs to the technical field of oil and gas field development, and in particular relates to an oil and gas extraction device and method. Background technique [0002] Opening up oil flow channels is an important process in oil extraction. However, in the prior art, shaped projectile perforation methods and hydraulic jet perforation methods are often used to open oil flow channels. [0003] For more than half a world, the shaped bullet perforation method has made great progress in perforation technology, tools and methods. However, the pollution of the compaction zone caused by perforation cannot be overcome, and the effective permeability of the reservoir is greatly reduced, which is extremely unfavorable to crude oil production. [0004] In addition, in terms of hydraulic jet perforation, although great progress has been made in fracturing fluid, proppant and fracturing technology, the basic technology of hydraulic fracturing has not...

Claims

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Application Information

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IPC IPC(8): E21B43/00E21B43/114
CPCE21B7/061E21B43/112
Inventor 曾义金王敏生曲海光新军戴文潮
Owner CHINA PETROLEUM & CHEM CORP
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