A high-temperature pressurization device for oil and gas well interlayer explosion propagation

Abstract

The invention discloses a high-temperature supercharging device for interlayer explosion transmission in oil and gas wells. The joint and the body are fixedly connected by threads, the ignition assembly of the diaphragm is placed in the through hole of the joint, and the gunpowder assembly and the piston assembly are respectively placed on both sides of the combustion chamber of the body. The pressure relief valve is placed on the side of the combustion chamber of the main body, and the main body and the first coupling are fixedly connected by oil pipe threads, and a certain number of oil pipes are used to connect the first coupling, the second coupling and the third coupling. The invention can solve the interlayer detonation transmission problem in multi-layer section and long-span perforation construction of highly inclined wells and horizontal wells, and uses the detonation wave generated after the normal detonation of the upper-level perforating gun to act on the diaphragm to ignite Then ignite the gunpowder assembly, and instantly generate high-temperature and high-pressure gas in the combustion chamber of the main body, push out the piston assembly in the main body at high speed, and transmit the gas pressure to the next-level pressure type detonation instantly by compressing the clean water killing fluid in the interlayer tubing On the device, the detonation operation of the next-level perforating gun is completed.

Description

technical field [0001] The invention belongs to the technical field of oil and gas well perforation, and mainly relates to an oil and gas well (TCP) tubing transmission perforation interlayer detonation technology, in particular to a high-temperature booster device for oil and gas well interlayer detonation transmission. Background technique [0002] In the petroleum industry, oil well perforation operation is an important process, which is to lower the perforating gun into the target layer in the well, use the detonating device to detonate, and after detonation, the shaped charge will penetrate the perforating gun, casing and cement layer. The exit channel connects the stratum with the oil well, so that the formation oil and gas can flow into the oil well smoothly. [0003] Multi-stage perforation technology refers to the perforation technology that penetrates multiple oil and gas layers at one time in the case of the next pipe string, which can reduce the number of perfora...

AI Technical Summary

Problems solved by technology

[0005] The technical problem solved by the present invention is: to overcome the above-mentioned problems existing in the existing multi-stage perforation in the petroleum industry, and at the same time, to avoid the shortcomings of the prior art, to provide a high-temperature pressurized device for interlayer explosion transmission in oil and gas wells, which solves the problem of large The problem of detonation transmission in multi-layered and large-span perforation in inclined wells and horizontal wells, simplifies the construction process, improves the reliability of construction in long interlayers, eliminates hidden dangers of accidents, and meets the requirements of oilfields for the safety, reliability and economy of perforating equipment. Environmental requirements

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