Guiding pipe

A technology of guide tube and guide block, which is applied in the field of guide tube, can solve the problems of high manufacturing cost and maintenance cost of rotary guide structure, and achieve the effect of simple structure, stable structure and high control precision

Inactive Publication Date: 2019-04-02
ZOUCHENG YANKUANG TAIDE IND & TRADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the manufacturing cost and maintenance cost of the rotary steerable structure of the pointing rotary steerable drilling tool are relatively high

Method used

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Embodiment Construction

[0028] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the structures, proportions, sizes, etc. shown in the drawings of this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the conditions for the implementation of the present invention , so it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall within the scope of the disclosure of the present invention without affecting the functions and objectives of the present invention. within the range covered by the technical content. At the same time, terms such as "upper", "lower", ...

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Abstract

The invention discloses a guiding pipe, which comprises a pipe body, a mandrel, an upper joint and a lower joint. The pipe body is located between the upper joint and the lower joint, and a measurement and control pipe nipple sleeving the mandrel is arranged between the upper end of the pipe body and the upper joint; a measurement and control instrument is arranged between the measurement and control pipe nipple and the mandrel, and three or more guiding blocks are arranged on the lower part of the pipe body and pushed by a hydraulic system to stretch out in the radial direction of the pipe body; the hydraulic system comprises a power assembly, a piston assembly and a hydraulic oil cavity; the power assembly comprises three or more sets of power components, and the piston assembly comprises three or more sets of piston components; the piston components are located in piston cavities which are mutually independent, and the hydraulic oil cavity comprises three or more mutually independent sub hydraulic oil cavities; and the piston components are driven by the power components, and the lower ends of the sub hydraulic oil cavities communicate with cavities through hydraulic oil channels correspondingly, wherein the lower parts of the guiding blocks are located in the cavities. The guiding pipe is relatively simple in structure and relatively low in manufacturing cost and maintenance cost.

Description

technical field [0001] The invention relates to the technical field of rotary steerable drilling equipment, in particular to a guide pipe. Background technique [0002] With the continuous advancement of technology, the drilling industry is developing rapidly. In order to further improve the drilling efficiency and reduce the drilling cost, the use of advanced means to automate the drilling process has become the focus of research in the field of drilling today. At present, the steering tools that can realize intelligent drilling mainly include sliding steering drilling tools and rotary steering drilling tools. Sliding steerable drilling tools have many shortcomings such as high friction between the well wall and the drill string, and difficult control of the tool face. Especially in horizontal wells, deep wells and ultra-deep wells, the shortcomings will be more obvious, and can no longer meet the needs of modern underground resources. Exploration needs to develop to deep...

Claims

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Application Information

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IPC IPC(8): E21B7/04
CPCE21B7/04
Inventor 佟朋郑春梅蔡峰刘涛张德山张松林
Owner ZOUCHENG YANKUANG TAIDE IND & TRADE CO LTD
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