Supercharge Your Innovation With Domain-Expert AI Agents!

Methods and apparatus to apply axial force to a packer in a downhole tool

A technology for downhole tools and packers, which is used in sealing/packing, earthmoving, wellbore/well components, etc., and can solve problems such as tools stuck in wellbore and packer damage

Active Publication Date: 2009-01-28
PRAD RES & DEV LTD
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This can cause damage to the packer or even cause the tool to get stuck in the wellbore

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
  • Methods and apparatus to apply axial force to a packer in a downhole tool
  • Methods and apparatus to apply axial force to a packer in a downhole tool
  • Methods and apparatus to apply axial force to a packer in a downhole tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Specific examples are shown in the aforementioned figures and described in detail below. In the examples, similar or identical reference numbers are used to denote common or similar elements. The figures are not drawn to scale and certain features and certain views of the figures are shown exaggerated in scale or schematically for clarity and / or conciseness.

[0015] In general, the example methods and devices described herein can be used to apply an axial force to an expandable packer element. The example methods and apparatus may be used, for example, to retrieve a previously expanded packer associated with a downhole tool. More specifically, the example methods and apparatus described herein relate to an inflatable packer assembly for use with a downhole tool, the inflatable packer element (e.g., an elastomeric bladder or body) coupled at one end to the A packer element is a sliding member, casing, ring, or collar that applies an axial force to retract the packer e...

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

Methods and apparatus to apply axial force to a packer in a downhole tool are described. In one described example, an apparatus to apply an axial force to an inflatable packer associated with a downhole tool includes a sleeve slidingly coupled to a body of the downhole tool and an end of the packer. An inner portion of the sleeve is sealed against the body of the downhole tool to form a chamber, and the chamber is fluidly coupled to a pump associated with the downhole tool to receive a pressurized fluid to cause the sleeve to apply an axial force to the packer.

Description

technical field [0001] The present disclosure relates generally to downhole tools, and more particularly, to methods and apparatus for applying axial force to packers in downhole tools. Background technique [0002] Downhole tools used to sample fluids from subterranean formations, measure formation fluid pressures, perform formation testing, etc. typically include one or more expandable packer assemblies or packers (e.g., straddle packers) to hydraulically isolate Or to seal a section of wellbore or borehole penetrating into the formation to be tested or sampled. Such expandable packer assemblies typically include flexible packer elements made of metal lath or cable reinforced elastic material. However, due to harsh conditions (eg, high temperatures) in many wellbores, the elasticity and mechanical strength of the packer element elastic material can be significantly compromised. Thus, the packer may expand to seal a portion of the wellbore, while possibly maintaining a re...

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): E21B33/128
CPCE21B33/1285
Inventor 尼古拉斯·埃尔森伊夫斯·巴里奥尔
Owner PRAD RES & DEV LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com