Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Hinge type driving retraction and push mechanism for externally hanging BH-VDT tool

A BH-VDT, hinged technology, applied in the direction of measurement, wellbore/well components, earthwork drilling and production, etc., can solve the problem of large elasticity of the disc spring

Pending Publication Date: 2020-10-30
CNPC BOHAI DRILLING ENG +1
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This product has formed 12 1 / 4 "~22" series products, initially the pushing mechanism adopts a floating type that translates up and down. Under the action of the spring force of the upper end disc spring, the guide block of the tool is stretched out in the free state, and the disc spring has a large force. Therefore, in Xinjiang Tarim Failed to pass 12 when region application 1 / 4 ", 13 1 / 8 "The upper thick-walled casing of these two open hole intervals

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
  • Hinge type driving retraction and push mechanism for externally hanging BH-VDT tool
  • Hinge type driving retraction and push mechanism for externally hanging BH-VDT tool
  • Hinge type driving retraction and push mechanism for externally hanging BH-VDT tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below by way of examples, but all descriptions are only for illustration, and should not be construed as forming any limitation on the present invention . In addition, any single technical feature described or implied in each embodiment mentioned herein, or any single technical feature shown or implied in each drawing, can still be described in these technical features (or their equivalents) ) to continue any combination or deletion, so as to obtain more other embodiments of the present invention that may not be directly mentioned herein. In addition, for the sake of simplifying the drawings, the same or similar technical features may only be marked in one place in the same drawing.

[0032] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "hor...

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 relates to a hinge type driving retraction and push mechanism for externally hanging a BH-VDT tool. The hinge type driving retraction and push mechanism comprises a tool body, a hinge type guide block, a first fixing block, a second fixing block and an elastic tongue plate. The first fixing block is provided with an installing groove. The hinge type guide block and the first fixing block are connected in a rotating manner. A special-shaped groove is formed in one side of the second fixing block. One end of the elastic tongue plate is installed in the special-shaped groove. A special-shaped hole is formed in the other end of the bottom of the hinge type guide block. The portion, extending out of the special-shaped groove, of the elastic tongue plate is inserted into the special-shaped hole. The second fixing block is provided with at least one plunger. The plungers extend out to push the hinge type guide block to rotate relative to the first fixing block. When the plungersretract, the elastic tongue plate can drive the hinge type guide block to be restored to the normal position. The mechanism can greatly reduce the risk that tool trip meets resistance and jamming.

Description

technical field [0001] The invention belongs to the technical field of oil drilling equipment, and in particular relates to an external hinge type active retraction pushing mechanism for BH-VDT tools. Background technique [0002] The BH-VDT tool is a high-end drilling tool developed by Bohai Drilling Institute. It is a precision instrument integrating electromechanical and hydraulic systems. It has a good application prospect in the drilling process of complex formations with large geological dips, easy to deviate and difficult to stabilize. This product has formed 12 1 / 4 "~22" series products, initially the pushing mechanism adopts a floating type that translates up and down. Under the action of the spring force of the disc spring at the upper end, the guide block of the tool is stretched out in the free state, and the disc spring has a large force. Therefore, in Xinjiang Tarim Failed to pass 12 when region application 1 / 4 ", 13 1 / 8 "The upper thick-walled casi...

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
IPC IPC(8): E21B47/001E21B47/01E21B49/00
CPCE21B47/01E21B49/00
Inventor 黄峰汝大军杨春陈世春黄健马哲魏庆振刘郅轩张雅静康建涛张长春檀大冰
Owner CNPC BOHAI DRILLING ENG
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com