Drilling bit installed with self-inspired pulse resonance jet nozzle

A jet nozzle and drilling bit technology, applied in drill bits, drilling equipment, earthwork drilling and other directions, can solve the problems of insufficient strength, affecting the drilling speed, etc., and achieve the effect of increasing the footage speed and speed.

Inactive Publication Date: 2007-10-17
宋家雄 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its shortcoming is that the strength of the mud ejected from the nozzle to wash the rock is not strong enough, which affects the improvement of the drilling speed

Method used

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  • Drilling bit installed with self-inspired pulse resonance jet nozzle

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specific Embodiment approach

[0010] The specific implementation method is as follows: it includes a drill bit 1 and a self-excited pulse resonance jet nozzle 2; the self-excited pulse resonance jet nozzle 2 includes an inlet nozzle 3 and a reflector 4; the inner hole of the inlet nozzle 3 is divided into three sections. Smaller, the inlet 11 of the upper part of the inner hole is a hole with a large upper part and a smaller cross-section edge, and the inner diameter of the lower end of the hole is equal to the inner diameter of the middle part of the inner hole. The inner diameter of the upper end of the inner hole is equal to the inner diameter of the middle section of the inner hole, and the surface of the conical hole is the upper reflecting surface 5; the inner hole of the reflector 4 is divided into three sections, the inner diameter of the upper section of the inner hole is equal to the outer diameter of the inlet nozzle 3, and the inner diameter of the upper end of the middle section of the inner hol...

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Abstract

A drill bit of the welldrilling mounted with a self-excitation type pulse resonance jet nozzle belongs to the drill bit of the welldrilling field. The technical problem to be solved is to provide a drill bit of the welldrilling mounted with a self-excitation type pulse resonance jet nozzle which can improve the drilling speed. The technical project for solving the technical problem includes a drill bit and a nozzle which contains an inlet nozzle and a reflector; the inner hole of the inlet nozzle is divided to three sections, the inner hole upper section is an inlet, the inner diameter of the middle section is smaller, the lower section is an outlet, a lower reflecting surface is formed between the lower end of the outlet and the upper end of the middle reflecting surface; the inlet nozzle is mounted in the inner hole upper section of the reflector. The nozzle is mounted in the mounting hole of the drill bit nozzle. The invention is applied to the drill bit of the welldrilling. The beneficial effects are that, the nozzle can produce jet with large intensity to convert the fluid flow in the well bottom to ultrasonic instantaneous pulse flow, and grind bore meal in the well bottom repeatly, so as to improve speed of carrying out the bore meal, thereby improving drilling footage speed.

Description

technical field [0001] The invention belongs to the technical field of drilling bits. Background technique [0002] In the prior art drilling bit, during the drilling process, the nozzles on the bit eject mud at the same time to wash away the broken rock at the bottom of the well to ensure the smooth progress of the drilling operation. Its shortcoming is that the intensity of the mud washing rock sprayed out by the nozzle is not large enough, which affects the improvement of the drilling speed. Contents of the invention [0003] The technical problem to be solved is to provide a drilling bit with a self-excited pulse resonance jet nozzle for increasing the drilling speed. [0004] The technical solution to solve the technical problem is as follows: a drilling bit equipped with a self-excited pulse resonance jet nozzle, including a drill bit and a self-excited pulse resonance jet nozzle; [0005] The self-excited pulse resonance jet nozzle includes an inlet nozzle and a r...

Claims

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Application Information

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IPC IPC(8): E21B10/60
Inventor 宋家雄杨进
Owner 宋家雄
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