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Bidirectional damping drilling tool pressurizing tool for well drilling

A kind of drilling tool and drilling technology, which is applied in the direction of drilling driving device, drilling equipment, earthwork drilling and production in the borehole, etc. It can solve the problems of increased construction cost, damage of drilling tool, low drilling efficiency, etc., and achieve the purpose of prolonging the life of drilling tool, The effect of reducing instantaneous stress and improving drilling efficiency

Active Publication Date: 2021-06-25
河南易发石油工程技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of oil and gas exploitation, drilling rigs are used to drill wells with different diameters from the ground to reach the designated oil and gas layers. Severe tool damage, low drilling efficiency and increased construction costs

Method used

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  • Bidirectional damping drilling tool pressurizing tool for well drilling
  • Bidirectional damping drilling tool pressurizing tool for well drilling
  • Bidirectional damping drilling tool pressurizing tool for well drilling

Examples

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Effect test

Embodiment

[0017] like Figure 1-Figure 5 As shown, the present invention provides a two-way shock-absorbing drill pressure tool for drilling, which includes a connecting shaft, an outer pipe and a valve core.

[0018] The connecting shaft comprises a spline shaft 1, a retaining ring 6, a third seal 12 and a nut 7, the left end of the spline shaft 1 is provided with an internal thread for screwing with the drill pipe, and the left end of the spline shaft 1 is also A first step is provided, the stop ring 6 is installed in the circular groove at the right end of the spline shaft 1, the third seal 12 is arranged at the right end of the spline shaft 1 and abuts against the right side of the stop ring 6, A nut 7 for clamping the third sealing member 12 is also screwed on the spline shaft 1 .

[0019] The outer tube is slidably fitted on the connecting shaft, and the outer tube includes a first seal 3, an inner spline joint 4, a first outer cylinder 5, an intermediate joint 8, a second outer ...

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Abstract

The invention provides a bidirectional damping drilling tool pressurizing tool for well drilling. The bidirectional damping drilling tool pressurizing tool comprises a connecting shaft, an outer pipe and a valve element, wherein the connecting shaft comprises a spline shaft, a baffle ring, a third sealing piece and a nut, the outer pipe comprises a first sealing piece, an inner spline connector, a first outer cylinder, a middle connector, a second outer cylinder and a lower connector, the inner spline connector is slidably arranged on the spline shaft in a sleeving mode and limited through a first step and the baffle ring, the first sealing piece is arranged in annular groove in the left side of the inner spline connector and attached to the spline shaft, the left end and the right end of the first outer cylinder are in threaded connection with the inner spline connector and the middle connector respectively, the right end of the middle connector is in threaded connection with the left end of the lower connector, the right end of the lower connector is provided with external threads used for being in threaded connection with a drill rod, the left end of the first outer cylinder is provided with a first through hole, a second through hole is formed in the left end of the second outer cylinder, and the valve element is slidably arranged in the outer pipe. According to the bidirectional damping drilling tool pressurizing tool, pressure of drilling fluid can be converted into pulse type thrust during well drilling, the well drilling efficiency is improved, and the service life of the drilling tool is prolonged.

Description

technical field [0001] The invention relates to the technical field of oil and gas exploitation equipment, in particular to a two-way shock-absorbing drill pressure tool for drilling. Background technique [0002] In the process of oil and gas exploitation, drilling rigs are used to drill wells with different diameters from the ground to reach the designated oil and gas layers. The tool damage is serious, the drilling efficiency is low, and the construction cost increases. Contents of the invention [0003] The purpose of the present invention is to provide a kind of two-way shock-absorbing drilling tool pressurization tool for drilling in view of the deficiencies in the prior art, and the specific scheme is as follows: [0004] A two-way shock-absorbing drill pressure tool for drilling, including a connecting shaft, an outer pipe, and a valve core; the connecting shaft includes a spline shaft, a retaining ring, a third seal and a nut, and the left end of the spline shaft...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B4/00E21B21/00
CPCE21B4/00E21B21/00
Inventor 彭远庆王丹陈福民杨智明胡志强赵帅陈晓旭苏泽文
Owner 河南易发石油工程技术有限公司
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