Waterway changeover switch and packer control device

A waterway switching and switching technology, which is applied in sealing/packing, valve device of wellbore/well, and components of wellbore/well, etc., can solve the problems of difficult implementation of packers, and achieve the effect of easy operation.

Active Publication Date: 2017-05-31
孙东生
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a waterway switching switch to solve the technical problem in the prior art that the waterway switching operation of the packer is difficult to implement and can only switch between two waterways

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
  • Waterway changeover switch and packer control device
  • Waterway changeover switch and packer control device
  • Waterway changeover switch and packer control device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, or...

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 provides a waterway changeover switch and a packer control device, and relates to the technical field of ground stress testing. The problems that waterway changeover operation of a packer is difficult to conduct, and changeover can be conducted only between two waterways are solved. The waterway changeover switch comprises a shell, a center rod and a connection rod. The center rod is sleeved with a rotating part and a rotating assisting part. A spring is arranged over the rotating part. The rotating part is provided with a plurality of teeth. The rotating assisting part is provided with a first sliding groove. A rotary guiding part is fixedly installed in the shell and provided with a second sliding groove. The guiding face of the second sliding groove is an inclined face. An installation disc is arranged in the shell. First compression valves are installed on the installation disc and connected with first water filling pipes in a one-to-one correspondence mode. The center rod is sleeved with a rotary disc. A plurality of through holes are formed in the rotary disc and comprise the multiple first through holes and the second through hole. The waterway changeover switch is easy and convenient to operate and capable of achieving changeover between multiple waterways.

Description

technical field [0001] The invention relates to the technical field of ground stress testing, in particular to a waterway changeover switch and a packer control device. Background technique [0002] In the process of measuring the ground stress of hydraulic fracturing in deep boreholes, it is necessary to use a bridge packer to seal part of the borehole. Specifically, the packer usually includes two rubber cylinders and an intermediate section. The intermediate section is connected between the two rubber cylinders. When the packer is lowered to the position to be measured in the borehole, the two rubber The radial expansion makes the sides of the two rubber cylinders contact the side wall of the borehole, and seals the area where the middle section is located, so as to facilitate hydraulic fracturing ground stress measurement in the borehole area corresponding to the middle section. When the measurement process is over, unload the pressure in the rubber cylinder and restore...

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 Applications(China)
IPC IPC(8): E21B34/14E21B33/12
CPCE21B33/12E21B34/14
Inventor 孙东生陈群策李阿伟
Owner 孙东生
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