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Drilling tool

A drilling tool and piston rod technology, applied in drilling tools, drilling equipment, earthwork drilling and other directions, can solve the problems of affecting drilling efficiency, low drilling speed, and reduced thrust drill pipe transmission efficiency, so as to ensure drilling Operation efficiency, the effect of ensuring the drilling speed

Active Publication Date: 2018-03-09
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In long-distance drilling operations, due to the long drilling distance, the thrust generated by the drilling rig is likely to be offset by the friction between the drill pipe and the wall of the drilled hole, resulting in a reduction in the transmission efficiency of the thrust through the drill pipe. As a result, the drilling speed is lower, which affects the drilling efficiency

Method used

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Embodiment Construction

[0038] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0039] The present invention provides a drilling tool 10, such as figure 1 and figure 2 As shown, the drilling tool 10 includes: an upper joint 11 , a casing 12 , a first piston 13 , a first piston rod 14 and an output shaft 15 .

[0040] The upper joint 11 is connected to the housing 12, the first piston 13 is fixed inside the housing 12, and the first piston 13 is provided with a first through hole. A first step is provided between the head section 141 of the first piston rod 14 and the tail section 142 of the first piston rod 14, and the tail section 142 of the first piston rod 14 passes through the first through hole and the output shaft One end of output shaft 15 is connected, and the other end of this output shaft 15 is connec...

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Abstract

The invention discloses a drilling tool, and belongs to the field of drilling and production. The drilling tool comprises an upper connector, a shell, a first piston, a first piston rod and an outputshaft, wherein the upper connector is connected with the shell, the first piston is fixed in the shell, a first through hole is formed in the first piston, a first step is arranged between the head segment and the tail segment of the first piston rod, the tail segment of the first piston rod penetrates through the first through hole and is connected with one end of the output shaft, and the otherend of the output shaft is connected with a drill bit; the first piston rod is capable of driving the output shaft to move when the end face of the head segment bears pressure of mud flowing from theupper connector until the first step of the first piston rod makes contact with the first piston. Thrust exerted on the drill bit is ensured by the drilling tool comprising the first piston rod, the first piston and the output shaft, and therefore drilling speed and drilling operation efficiency are ensured.

Description

technical field [0001] The invention relates to the field of drilling, in particular to a drilling tool. Background technique [0002] In the field of oil and gas drilling and production, drilling tools are mainly used in drilling operations such as drilling. Among them, the drilling tool can be connected with the drill rod, the drill bit, etc. The drill rod can transmit the thrust generated by the drilling rig to the drilling tool, so that the drill tool can drive the drill bit to move in a straight line under the action of the thrust, and at the same time, the drill bit can move under the action of the motor. Torque is generated so that the drill bit can perform linear motion on the one hand and rotary motion on the other hand during drilling operations. [0003] In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art: [0004] In long-distance drilling operations, due to the long drilling dist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B11/00E21B4/00
CPCE21B4/00E21B11/00
Inventor 江勇张宝强焦如义石昌帅刘厚平吴益泉李松隋付东姜华单慕晓
Owner BC P INC CHINA NAT PETROLEUM CORP
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