Flexible sub-joint and method for installing energy/information transfer bus

A flexible short joint and information transmission technology, applied in drilling equipment and methods, earthwork drilling, casing, etc., can solve the problems of energy/information transmission bus seal failure, flexible short joint's low ability to resist internal pressure and external extrusion, etc.

Active Publication Date: 2020-11-13
BC P INC CHINA NAT PETROLEUM CORP +2
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a flexible short joint and its method of installing energy / information transmission bus, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem of low internal pressure and external extrusion resistance of the existing flexible short joint. Energy / information transfer bus seal failure issue

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Flexible sub-joint and method for installing energy/information transfer bus
  • Flexible sub-joint and method for installing energy/information transfer bus
  • Flexible sub-joint and method for installing energy/information transfer bus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] In order to enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements identified, or also include elements inherent in such a process, method, article, or end-equipment. ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a flexible nipple and an energy / information transmission bus mounting method. An axial through hole used for allowing a drilling fluid to flow is formed in the center of the end face of a flexible nipple body, the flexible nipple body is provided with three center small holes used for allowing energy / information transmission buses to be mounted and to pass, in addition, theflexible nipple body is further provided with two threaded holes used for connecting the energy / information transmission buses, and the two threaded holes are both sealed through single-bus interfacebolts and O-shaped sealing rings. The flexible nipple is reasonable and compact in structure, internal pressing and external extruding resisting abilities of the flexible nipple are improved advantageously, and insulation layers of the energy / information transmission buses are prevented from being abraded. Through the mounting method, the energy / information transmission buses and assemblies mounted on the flexible nipple are stable and reliable, downhole operation of a rotating guiding system is safe and reliable, and thus effective implementation of drilling operation of the rotating guidingsystem is ensured advantageously.

Description

technical field [0001] The invention relates to the technical field of drilling tools, in particular to a flexible short joint and a method for installing an energy / information transmission bus. Background technique [0002] The rotary steerable system overcomes the disadvantages of slide-steering drilling, such as easy pressure support, difficult trajectory control, slow drilling speed, and difficulty in extending the horizontal section. It is the core tool for economically and effectively developing long The exploration and development of unconventional oil and gas reservoirs such as oil and gas reservoirs, shale oil, and shale gas have an urgent demand for rotary steerable tools. [0003] However, the research and development of domestic rotary steerable systems have problems such as low technical indicators, unstable performance, and short service life. Among them, the flexible sub-joint of the rotary steerable system is in the downhole environment. In order to realize ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): E21B7/06E21B17/20
CPCE21B7/062E21B17/206
Inventor 范永涛李晓军王洪宇王眉山刘鹏张军锋张健阁罗维许朝辉魏晓东
Owner BC P INC CHINA NAT PETROLEUM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap