Oil gas exploitation apparatus and method

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...

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

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