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Drilling mud splash joint

A technology for anti-splash joints and drilling mud, which is applied to drilling equipment, drill pipes, drill pipes, etc., can solve the problems of incomplete prevention of mud leakage, high cost of installing plug valves, and single structure, and achieves reasonable and reliable structure and low cost. Low, well-conceived effects

Active Publication Date: 2018-04-03
SICHUAN WELDON CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the installation of plug valves has problems such as high cost, misoperation, and complicated operation.
At present, there are also joints that solve this problem, but they all have many defects such as high cost, single structure, short service life, and cannot completely prevent mud leakage when connected.

Method used

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Experimental program
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Embodiment

[0031] Drilling mud splash joint of the present invention, its structure is as figure 1 As shown, it includes a tubular body 1, one end of the body 1 is a kelly connection end 2, and the other end is a drill pipe connection end 3, the inner cavity of the body 1 is fixedly provided with a sealing core 4, and the outer diameter of the sealing core 4 is less than The inner diameter of the main body 1 forms an annular cavity 6 for the passage of mud. The inner cavity of the main body 1 is also provided with a bidirectionally movable sealing seat ring 5, which is located between the sealing core 4 and the connecting end 3 of the drill pipe. Section, and the sealing seat ring 5 is assembled in the body 1 through the elastic member, and is fitted between the inner cavity of the main body 1 and the sealing core 4 through the elastic force of the elastic member to form a seal, so as to realize the closure of the joint. When the sealing seat ring 5 When receiving the mud pressure from t...

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Abstract

The invention discloses a splash-proof connector for drilling mud, and belongs to the technical field of drilling production equipment and accessories. The splash-proof connector for drilling mud comprises a body, one end of the body is a square kelly connecting end, and the other end is a drill rod connecting end; a seal core is fixedly arranged in an inner cavity of the body, and he outer diameter of the seal core is smaller than the inner diameter of the body, which is used for forming an annular cavity for mud to pass through; a seal base ring which is capable of moving in two directions and is located in the section wherein the seal core and the connecting end of a drill rod are located is arranged in the inner cavity of the body, and the seal base ring is assembled through an elastic part and is matched between the inner cavity of the body and the seal core through elastic force of the elastic part to form seal. The splash-proof connector for drilling mud is ingenious in concept and reasonable and reliable in structure, the elastic part provides elastic force to place the seal base ring between the seal core and the body to seal or open the connector, the problem of mud leakage caused by connection of the single drill rod at present can be effectively solved, work environment is improved, and meanwhile unnecessary mud waste is reduced.

Description

technical field [0001] The invention relates to a drilling tool, in particular to a drilling mud splash prevention joint, which belongs to the technical field of drilling equipment and accessories. Background technique [0002] In the process of drilling oil and natural gas, when drilling to a certain size, it is necessary to separate the kelly from the drill pipe and connect a single drill pipe, but because the kelly is full of drilling mud at this time, the At the moment of the kelly, the mud in the kelly will jet out and flow onto the drilling platform, which will cause waste of mud and worsen the working conditions, which will bring great inconvenience to the operators. [0003] Now in the drilling engineering, some well teams ignore this situation, while some well teams solve this problem by installing plug valves. However, the installation of plug valves has problems such as high cost, misoperation, and complicated operation. There are also joints to solve this probl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B17/04E21B21/10
CPCE21B17/04E21B21/10
Inventor 何伟易建国卿显君岳洋涛秦超
Owner SICHUAN WELDON CHEM
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