An oil and gas extraction device and method

Abstract

The invention relates to an oil gas exploitation apparatus and method. The apparatus includes at least an exploitation unit, a needle tubing, and a self-propelled nozzle arranged at a second end of the needle tubing. The exploitation unit includes a jet pipe nipple and an adjusting pipe nipple detachably connected to the jet pipe nipple, wherein penetrating installation holes are arranged on a sidewall of the jet pipe nipple, and the adjusting pipe nipple is provided with oil holes for the oil gas flowing from a stratum into an inner cavity of the exploitation unit. In the original state, a first end of the needle tubing is arranged in the inner cavity of the exploitation apparatus. The second end of the needle tubing is inserted in the installation holes. During a process for pumping the liquid to the exploitation apparatus, the needle tubing extends in a storage stratum so as to form an exploitation pore passage. In the oil gas exploitation process, the oil gas exploitation apparatus has high effectiveness for the reconstruction of the storage stratum 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

Images