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Hydraulic pulse well drilling equipment

A drilling tool and hydraulic pulse technology, applied in the field of hydraulic pulse drilling tools, can solve problems such as rock stretching and crushing, achieve the effect of reducing crushing strength, reducing risk, and increasing drilling speed of drilling machinery

Inactive Publication Date: 2006-06-14
SHENGLI PETROLEUM ADMINISTRATION BUREAU DRILLING TECH ACAD SINOPEC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the dynamic pressure of the jet is high, it will cause tensile stress to the rock, which will easily cause the rock to be stretched and broken.

Method used

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  • Hydraulic pulse well drilling equipment
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Embodiment Construction

[0010] The present invention will be further described now in conjunction with the accompanying drawings of the description.

[0011] The present invention mainly consists of an upper joint 1, a suspension plate 2, an end cap 3, a diverter 4, an impeller 5, a shaft 6, a sleeve 7, a sealing gland 8, a rotor 9, a stator 10, a body 11, and a ball bearing 12. The upper joint 1 and the main body 11 are two sections of hollow tubular bodies processed with threads. The lower end of the inner cavity of the main body 11 is processed with a step. The upper joint 1 and the main body 11 are connected by threads. There are through holes, and several through holes that are not connected to each other are processed around the hole. The diverter 4 is a hollow cylinder, and the lower end is processed with an outer step. On the outer step, there are diversion holes along the concentric circle. There is a side through hole under the inverted step, and an outer step is processed at the lower end ...

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Abstract

The invention discloses petroleum industry well drilling working underground tool. It is made up of joint, hanging plate, end cap, shunting rebel tool, impeller, shaft, cover, gland, rotor, stator, identity, and ball bearing. The invention is connected to the up of the drilling bit. While drilling, part of the drilling fluid drive impeller to make the rotor rotate by shunting rebel tool. When the flow passage of the rotor and stator are sealed, its area is the minimum. When the flow passages are circulated, the area is the maximum. High pressure pulsation jetting is formed at lower reaches to improve drilling speed. The other part of the drill fluid pass through the shunting hole to prevent drilling fluid from interrupting caused by impeller blocking to reduce tool application risk.

Description

technical field [0001] The invention relates to a hydraulic pulse drilling tool, which belongs to the downhole tool for drilling in the petroleum industry. technical background [0002] At present, with the development of exploration to deep strata, there are more and more deep wells, but with the increase of well depth, the hydraulic loss along the way increases, the available water horsepower of the bottom hole drill bit drops sharply, and the ability of hydraulic rock breaking and cleaning is weakened. , resulting in a decrease in deep well drilling speed. Therefore, how to improve the utilization efficiency of hydraulic energy at the bottom of the well as much as possible, and then increase the rate of penetration of the drilling machine is one of the urgent problems to be solved. [0003] Hydraulic pulse drilling is a new drilling technology that uses specific tools to transform the continuous flow in the drilling string into a hydraulic pulse je...

Claims

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Application Information

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IPC IPC(8): E21B7/00E21B7/18E21B7/24
Inventor 王智锋王敏生李作会
Owner SHENGLI PETROLEUM ADMINISTRATION BUREAU DRILLING TECH ACAD SINOPEC
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