Multi-effect lifting pressurizing device for drilling tool

A technology of pressurizer and drilling tool, which is applied in drill pipe, drill pipe, earth-moving drilling and mining, etc., can solve the problems of easy wear and tear of the outer wall of the drill tool, easy fatigue damage of the thread, affecting the service life, etc., so as to reduce downhole accidents, The effect of prolonging service life and preventing thread breakage

Inactive Publication Date: 2015-04-22
刘岩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this kind of rigid pressure will produce many disadvantages in the process of transmission: first, the bending stress of the drilling tool acts on the threaded connection part, making the thread very easy to be fatigued and damaged; Affect its service life; Third, accidents of stuck drill and deflection are prone to occur in the process of drilling

Method used

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  • Multi-effect lifting pressurizing device for drilling tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The multi-effect lifting drill pressurizer of the present invention is composed of a cylinder liner 1 and a hydraulic conversion device, the cylinder liner 1 is a hollow cylinder with two ends open, and the hydraulic conversion device is composed of an expansion joint 2, The telescopic rod 3, the lower joint 4 and the sealing ring 5I are composed, the telescopic joint 2 is fixed on the front end of the telescopic rod 3, the lower joint 4 is fixed on the bottom of the cylinder liner 1, the telescopic rod 3 passes through the lower joint 4, and the telescopic rod The tail of 3 is inserted into the cavity inside the cylinder liner 1, and a convex ring is provided at the tail of the telescopic rod 3 to fit the inner wall of the cylinder liner 1, and a sealing ring Ⅰ5 is arranged on the convex ring, and the sealing ring Ⅰ5 is in contact with the inner wall of the cylinder liner 1 phase sealed.

Embodiment 2

[0017] Such as figure 1 As shown, the multi-effect lifting drilling tool pressurizer of the present invention is composed of a cylinder liner 1 and a hydraulic conversion device. The cylinder liner 1 is a hollow cylinder with openings at both ends, and the hydraulic conversion device consists of a telescopic Joint 2, telescopic rod 3, lower joint 4 and sealing ring 5I are composed. Expansion joint 2 is connected to the front end of telescopic rod 3 with threads, and lower joint 4 is connected to the bottom of cylinder liner 1 with threads. Lower joint 4 is connected to telescopic rod 3. The contact section is provided with a sealing ring II8, the telescopic rod 3 passes through the lower joint 4, and the tail of the telescopic rod 3 is inserted into the cavity inside the cylinder liner 1, and a convex ring is provided at the tail of the telescopic rod 3 to communicate with the inner wall of the cylinder liner 1. Fitting, a sealing ring I5 is provided on the convex ring, and th...

Embodiment 3

[0020] Such as figure 1 As shown, the multi-effect lifting drilling tool pressurizer of the present invention is composed of a cylinder liner 1 and a hydraulic conversion device. The cylinder liner 1 is a hollow cylinder with openings at both ends, and the hydraulic conversion device consists of a telescopic Joint 2, telescopic rod 3, lower joint 4 and sealing ring 5I are composed. Expansion joint 2 is screwed to the front end of telescopic rod 3, lower joint 4 is screwed to the bottom of cylinder liner 1, and telescopic rod 3 passes through lower joint 4 , and the tail of the telescopic rod 3 is inserted into the cavity inside the cylinder liner 1, the section where the lower joint 4 contacts the telescopic rod 3 is provided with a sealing ring II8, and the tail of the telescopic rod 3 is provided with a protruding ring, the outer diameter of which is larger than The outer diameter of other parts of the telescopic rod, the convex ring of the telescopic rod 3 is provided with ...

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PUM

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Abstract

The invention provides a multi-effect lifting pressurizing device for a drilling tool, and relates to a drilling assisting device. The multi-effect lifting pressurizing device for the drilling tool comprises a cylinder sleeve and a hydraulic conversion device; the cylinder sleeve is a hollow cylinder body of which two ends are opened; the hydraulic conversion device comprises a telescopic joint, a telescopic rod, a lower joint and a sealing ring I; the telescopic joint is fixed to the top part of the telescopic rod; the lower joint is fixed to the bottom part of the cylinder sleeve; the telescopic rod passes through the lower joint, and the tail part of the telescopic rod is inserted into a cavity in the cylinder sleeve; the sealing ring I is arranged at the tail part of the telescopic rod and is in contact with the inner wall of the cylinder sleeve. According to the multi-effect lifting pressurizing device for the drilling tool, the pressure difference is generated by reducing, then the pressure is transmitted to a drill bit through the telescopic rod and a telescopic rod, the uniformly-downwards power is continuously applied to the drill bit, and the rigid pressure of a drill collar to the drill bit is converted into hydraulic pressure; therefore, the drill bit can be protected well by the uniform pressurizing, and as a result, the purposes of high speed and low cost can be achieved.

Description

technical field [0001] The invention relates to auxiliary equipment for drilling and production, in particular to a multi-effect lifting drilling tool pressurizer. Background technique [0002] Generally speaking, drilling is to drive the drill bit through the drill collar, and use the rigid pressure given to the drill bit by the drill collar to directly perform the drilling operation. But this kind of rigid pressure will produce many disadvantages in the process of transmission: first, the bending stress of the drilling tool acts on the threaded connection part, making the thread very easy to be fatigued and damaged; Affect its service life; Its three, the accident of sticking drill and beating off easily takes place in the process of drilling. Contents of the invention [0003] The present invention provides a multi-effect lifting drilling tool pressurizer for the above-mentioned deficiencies in the prior art. [0004] The multi-effect lifting drilling tool pressurizer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/08
CPCE21B19/086
Inventor 刘岩
Owner 刘岩
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