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Linkage type drill stem anti-twist tool

A drill string and anti-twist technology, applied in the direction of drill pipes, drill pipes, drilling equipment, etc., can solve the problems of torsional deformation of drilling strings, achieve the effect of preventing torsional deformation and improving the efficiency of directional drilling

Inactive Publication Date: 2016-08-10
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: in order to solve the problem of torsional deformation of the drilling string during the oil and gas drilling process, a linkage anti-twist tool is specially provided.

Method used

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  • Linkage type drill stem anti-twist tool
  • Linkage type drill stem anti-twist tool
  • Linkage type drill stem anti-twist tool

Examples

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Embodiment Construction

[0018] Such as figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 As shown, an interlocking drill string anti-twist tool of the present invention is composed of an upper joint 1, an upper spring 2, a main cylinder 3, an upper anchor shell 4, an anchor fluke 5, an anchor fluke spring 6, a pressure plate 7, The anti-rotation pin 8, the upper sleeve 9, the lower anchor housing 10, the lower sleeve 11, the lower spring 12 and the lower joint 13 are composed of the upper end of the upper joint 1 and the upper drill string screw connection, and the lower joint 13 The lower end is connected with the lower end of the downhole power drilling tool with threads; the upper end of the main cylinder 3 is connected with the lower end of the upper joint 1 with threads, and the lower end of the main cylinder 3 is connected with the upper end of the lower joint 13 with threads; the upper part of the main cylinder 3 is evenly arranged in the outer circumference direction Four upper di...

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Abstract

The invention relates to a linkage type drill stem anti-twist tool capable of preventing twist deformation of a drill stem in the oil and gas industry, and solves the drill stem twist deformation problems in an oil and gas drilling process; the technical scheme is that a main barrel top and an upper joint bottom are in screwed connection; a main barrel bottom and a lower joint top are in screwed connection; anti-twist pins are respectively arranged in a pin slot below a main barrel upper fluid inlet and a pin slot below a main barrel lower unloading groove; an upper anchoring casing is sleeved on the upper portion of the main barrel excircle; a lower anchoring casing is sleeved on the lower portion of the main barrel excircle; an anchor palm is arranged in a step hole of an upper anchoring casing centralizer rib, and an anchor palm is arranged in a step hole of a lower anchoring casing centralizer rib. The linkage type drill stem anti-twist tool can realize contentiously drilling, and at least the upper anchoring casing, the lower anchoring casing, or both of the two are anchored with the well wall, thus effectively preventing drill stem from having twist deformation; the linkage type drill stem anti-twist tool can be applied in the drill tool face and coiled-tubing drilling technical field.

Description

technical field [0001] The invention relates to an interlocking drill string anti-twist tool for preventing the torsion deformation of the drilling pipe string in the oil and gas industry, in particular to the problem of preventing the deviation of the drilling tool surface in pilot drilling. Background technique [0002] In the oil and gas industry, deep wells and ultra-deep wells use downhole dynamic drilling tools as power to provide rock-breaking torque for the drill bit. Correspondingly, the drill string must bear the reaction torque from the downhole dynamic drilling tools, so the drilling string will occur during drilling. Severe torsional deformation. The torsional deformation of the drill string will cause a variety of complex drilling phenomena, such as whirl phenomenon and stick-slip phenomenon. Whirling and stick-slip phenomena in the drill string will seriously damage the service life of the drill string, drill bits and logging instruments, reduce the ROP, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/10
CPCE21B17/10
Inventor 叶哲伟梁政赵勇
Owner SOUTHWEST PETROLEUM UNIV
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