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Drilling pup joint

A drilling and pad technology, applied in drilling equipment, drill pipes, drill pipes, etc., can solve problems such as affecting drilling efficiency and poor righting effect, and achieve the effect of excellent righting effect.

Inactive Publication Date: 2015-03-25
天津市天佑元化工贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to structural reasons, the existing short connection has the problem of poor righting effect, which affects drilling efficiency

Method used

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  • Drilling pup joint
  • Drilling pup joint

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Effect test

Embodiment Construction

[0011] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0012] Such as figure 1 , figure 2 Shown: a drilling short, including a main body 1, a sleeve 2, and a high-strength, high-elasticity oil-resistant rubber pad 3, the outer side of the main body 1 is provided with a plurality of bosses, and the high-strength, high-elasticity oil-resistant rubber pad 3 is embedded in the groove between the bosses in the axial direction, and the high-strength and high-elasticity oil-resistant rubber pads 3 are evenly distributed along the circumference, and the top surface of the high-strength and high-elasticity oil-resistant rubber pads 3 is higher than the top surface of the bosses. The sleeve 2 is sleeved on the outer side of the high-strength and high-elasticity oil-resistant rubber pad 3 .

[0013] The main body 1 is made of fiberglass, and the sleeve is made of high wear-resistant epoxy resin. The main body 1 and the sleeve 2...

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Abstract

The invention provides a drilling pup joint comprising a body, a sleeve and high-strength high-elasticity oil-proof rubber cushions. A plurality of bosses are arranged outside the body. The high-strength high-elasticity oil-proof rubber cushions are axially embedded in grooves among the bosses and uniformly circumferentially distributed. The top surfaces of the high-strength high-elasticity oil-proof rubber cushions are higher than the top surfaces of the bosses. The sleeve sleeves the high-strength high-elasticity oil-proof rubber cushions. By the aid of the high elasticity of the high-strength high-elasticity oil-proof rubber cushions, the body is closely connected with the sleeve. The drilling pup joint is good in centralizing effect.

Description

technical field [0001] The invention relates to a short joint used for drill pipes in the field of oil field drilling, in particular to a short joint for drilling. Background technique [0002] In the field of oil field drilling, the short joint is an important connection part on the drill pipe. The short circuit plays the role of connection and righting. However, the existing short connection has the problem of poor righting effect due to structural reasons, which affects drilling efficiency. Contents of the invention [0003] In order to solve the above problems, the present invention provides a drilling short. [0004] The specific solution is: a drilling short connection, including a main body, a sleeve, and a high-strength, high-elasticity, oil-resistant rubber pad. A plurality of bosses are arranged on the outside of the main body, and the high-strength, high-elasticity, oil-resistant rubber pad is arranged along the shaft The high-strength, high-elasticity, oil-r...

Claims

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Application Information

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IPC IPC(8): E21B17/02E21B17/10
CPCE21B17/02E21B17/1042
Inventor 王桂英王树清
Owner 天津市天佑元化工贸易有限公司
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