Negative-pressure jet-type particle impact drilling injection device

Abstract

The invention belongs to the technical field of petroleum drilling engineering and particularly relates to a negative-pressure jet-type particle impact drilling injection device. A balanced-pressure jet pipe is installed on one side of a material inlet at the top of a high-pressure particle injection tank, a jet anti-blocking sprayer is arranged at one end of the balanced-pressure jet pipe, the other end of the balanced-pressure jet pipe is arranged at the top of a main pipe manifold, the jet anti-blocking sprayer is arranged at the bottom of the high-pressure particle injection tank, a negative-pressure particle injection pipe is arranged at the bottom of a material outlet, a nozzle is arranged at one end of the negative-pressure particle injection pipe and communicated with the main pipe manifold, a regulating pipe is arranged at the bottom of the main pipe manifold, the tail end of the regulating pipe is communicated with an outlet of the negative-pressure particle injection pipe, and a regulating valve is arranged in the regulating pipe. The negative-pressure jet-type particle impact drilling injection device adopts the self-rotating type jet anti-blocking sprayer, achieves omnibearing and multi-angle stirring on the material outlet of the high-pressure particle injection tank, is easy, convenient and safe to operate, serves as one of three core systems of the particle impact drilling new technology, and is simple in processing and manufacturing, convenient to detach, stable in performance and capable of remarkably improving the drilling speed of extra-hard wear-resisting stratum of deep well.

Description

technical field [0001] The invention relates to a negative pressure jet type particle impact drilling injection device, which belongs to the technical field of petroleum drilling engineering. Background technique [0002] Particle impact drilling technology is a new oil drilling technology developed for the development of oil and gas resources in deep hard and abrasive strata. Broad application prospects. Particle impact drilling refers to adding a certain amount of steel particles to the drilling fluid while the conventional drill bit is rotating and drilling mechanically to break the rock, and through the drill bit nozzle to impact and break the rock in the form of high-frequency jet to assist the purpose of rock breaking, thereby greatly Significantly increase the ROP and accelerate the commissioning of oil and gas wells. [0003] So far, as a new technology proposed in recent years, particle impact drilling technology has only carried out a small amount of laboratory a...

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide a negative pressure jet particle impact drilling injection device with reasonable structure, safe use, high particle injection speed, and easy blockage at the bottom of the high-pressure particle injection tank.

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