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

Underground packer based on oil field

A technology for packers and oilfield wells, which is applied in sealing/isolation, wellbore/well parts, earthwork drilling and production, etc. It can solve problems such as sealing failure, rubber hose expansion, and rubber hose deformation, so as to prevent sealing failure and ensure stability sex, avoiding the effect of failure

Active Publication Date: 2020-10-30
DAQING DANNUO PETROLEUM TECH DEV
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of sealing the pipeline, the packer needs to squeeze the rubber hose so that the diameter of the rubber hose expands outwards to seal the pipeline. However, the rubber hose will be deformed after a long period of extrusion, so that the rubber hose cannot be restored to its original state. In the original shape, the rubber hose will always keep expanding, causing the packer to be unable to unseal smoothly, and the existing packer is sealed by hydraulic means, the sealing structure is complicated, and the seal failure is prone to occur. We provide a packer based on oilfield downhole

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
  • Underground packer based on oil field
  • Underground packer based on oil field
  • Underground packer based on oil field

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0024] see Figure 1 to Figure 4 , the present invention provides a technical solution: a packer based on oil field downhole, including a left connector 1, the inside of which is fixedly connected with a snap ring 2, and the snap ring 2 is snapped on the outside of the left connector 1, and the left connector The outside of 1 is provided with a thread 3, and the thread 3 is threadedly connected with the inner side of the adjustment ring 5. The center pipe 4 is movably socketed inside the left connector 1, and the right end of the left connector 1 is threaded with the adjustment ring 5. By adopting Connect the left connector 1 and the adjustment ring 5 by means of thr...

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 an underground packer based on an oil field, and relates to the technical field of packers, in particular to the underground packer based on the oil field. The underground packer based on the oil field comprises a left connector, a central pipe is movably sleeved with the inner part of the left connector, an adjusting ring sleeves the right end of the left connector in a threaded manner, a clamping block is fixedly connected to the bottom of the adjusting ring, a movable groove is formed in the inner part of the center pipe, the clamping block is connected in the innerpart of the movable groove in a clamped mode, a reset spring is arranged in the inner part of the movable groove, and a rubber pipe is arranged on the right side of the clamping block. The left connector and the adjusting ring are connected in a threaded connection mode, the left connector is rotated to enable the adjusting ring to move rightwards, then the adjusting ring compresses a supporting piece to enable the supporting piece to expand to seal a pipeline, the rotary propelling mode is simpler, sealing failure caused by backward movement of the adjusting ring is prevented, and the sealingstability is guaranteed.

Description

technical field [0001] The invention relates to the technical field of packers, in particular to a packer for downhole use in oil fields. Background technique [0002] Packers are widely used in drilling, cementing, testing, completion and other operations. It is also used in downhole oil operations. In oil production engineering, the packer is used for stratification. The packer is designed with an oil production channel. When setting, the piston sleeve goes up, and the oil production channel is opened; after setting, the pressure of the upper layer acts on the balance On the piston, push the rubber tube upward to protect the unsealing pin from shearing force; when unsealing, the unsealing pin is sheared by the friction between the rubber tube and the sleeve, and the piston sleeve goes down to close the oil production channel. [0003] In the process of sealing the pipeline, the packer needs to squeeze the rubber hose so that the diameter of the rubber hose expands outward...

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): E21B33/127E21B33/129
CPCE21B33/127E21B33/129
Inventor 肖云东
Owner DAQING DANNUO PETROLEUM TECH DEV
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