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Method for improving screw drilling tool use performance and super screw drilling tool

A screw drilling tool and performance technology, applied in the direction of drill pipe, drill pipe, drilling equipment, etc., can solve the problems of reduced service life of screw drilling tools and drill bits, axial pressure and vibration damage of screw drilling tools, and improve drilling efficiency , improve the ability to resist axial pressure and anti-rotational centrifugal force, and improve the effect of displacement

Pending Publication Date: 2018-05-29
GUIZHOU GAOFENG GASOLINEEUM MACHINERY
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AI Technical Summary

Problems solved by technology

[0003] At present, during the deep well operation of traditional screw drilling tools, while ensuring the drilling speed, the screw drilling tools will be subjected to relatively large axial pressure when encountering sudden drilling operations or continuous high drilling pressure and high torque drilling. and vibration damage, greatly reducing the service life of screw drilling tools and drill bits

Method used

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  • Method for improving screw drilling tool use performance and super screw drilling tool
  • Method for improving screw drilling tool use performance and super screw drilling tool
  • Method for improving screw drilling tool use performance and super screw drilling tool

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0032]Embodiments of the present invention: a method for improving the performance of a screw drilling tool, the method improves the performance of the screw drilling tool by improving the motor assembly 2 and the cardan shaft assembly 3 in the screw drilling tool; wherein the motor assembly The stator 2-1 and the rotor 2-2 are combined in a spiral structure, thereby prolonging the lead of the motor assembly 2, increasing the number of stages of the motor assembly and the number of heads of the stator and rotor, and improving the efficiency of the mud pump system. Displacement, so that the output torque and speed of the motor assembly 2 can be increased; at the same time, a certain curvature is set at the lower end of the cardan shaft outer cylinder...

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Abstract

The invention discloses a method for improving screw drilling tool use performance and a super screw drilling tool. The super screw drilling tool comprises a fall prevention conversion assembly, a motor assembly, a universal shaft assembly and a transmission shaft assembly, the fall prevention conversion assembly comprises a fall prevention conversion connector, a fall prevention disk and a fall prevention connecting rod, the fall prevention disk is arranged in the fall prevention conversion connector, the upper end of the fall prevention connecting rod is arranged in the fall prevention diskin a sleeving manner and fixed through a tightening nut, and the other end of the fall prevention connecting rod is connected with the upper end of a rotor of the motor assembly. The super screw drilling tool is simple in structure, safe and reliable, rotating and drilling functions of a conventional screw drilling tool and a directional drilling function of a bent shell can be achieved, the superscrew drilling tool is particularly applicable to well drilling occasions of supra-maximal discharge capacity, torque and drilling pressure and ultra-high compound rotating speed under high bending deflection (namely a short-radius drilling tool), the super screw drilling tool has service life equivalent to a conventional screw, the application range of the screw drilling tool is greatly widened,and well drilling speed can be effectively improved.

Description

technical field [0001] The invention relates to a method for improving the performance of a screw drilling tool and a super screw drilling tool, belonging to the technical field of drilling. Background technique [0002] At present, in drilling construction operations at home and abroad, the use of screw drilling tools in vertical wells, directional wells and horizontal wells as an economical, durable power drilling tool has been quite common. However, as the level of drilling technology, technological equipment, and drill bits are getting higher and higher, and in order to meet environmental protection requirements, increase production, old well reconstruction, ultra-deep wells, ocean drilling and exploration wells in new blocks, the complexity of formations is becoming more and more complex. There are more and more high-altitude, super-hard formations, and more and more complex formations, especially the higher and higher requirements for the drilling speed increase index....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/20E21B17/10
CPCE21B17/1078E21B17/20
Inventor 黄瑞海徐海峰黄成王磊黄海军曹良波郑波强金锋
Owner GUIZHOU GAOFENG GASOLINEEUM MACHINERY
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