Unlock instant, AI-driven research and patent intelligence for your innovation.

Casing degasser tool

Inactive Publication Date: 2005-11-17
PRESSSOL
View PDF78 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0008] The body further comprises a connection means located at or near the top end of the body for connecting a wire line or other pulling device to the CDT to assist in positioning the CDT within the production piping and for pulling the CDT through the length of the production piping.
[0027] (8) slotted casing and liners can be run into the wellbore without the need to kill the well.

Problems solved by technology

This overbalanced hydrostatic pressure, however, can cause damage to reservoirs, in particular, to reservoirs containing swelling clays or reservoirs having a pressure well below the hydrostatic pressure of the kill fluid being used.
Hydrocarbon reservoirs with high permeability and porosity can also be damaged with the use of kill fluids.

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
  • Casing degasser tool
  • Casing degasser tool
  • Casing degasser tool

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0030]FIG. 1 schematically illustrates an embodiment of the present invention. Casing degasser tool 15 comprises a body 7 having a closed top end 2, an open bottom end 4 and an inner cavity 8. Disposed around the outside surface 13 of body 7, at or near bottom end 4, are a plurality of sealing elements 11, formed from a material such as rubber or the like. When casing degasser tool 15 is placed inside a joint of production piping, sealing elements 111 provide a fluid tight seal with the inside wall of the production piping.

[0031] Sealing elements 11 may also be made of expandable rubber and the like so that sealing element 11 can be expanded by means of pumping fluid or air therein or by means of an electric current. This assists in the frictional engagement of the sealing element with the inside wall of the production piping to ensure a fluid tight seal. Further, the sealing element can then be contracted slightly to facilitate the pulling of the casing degasser tool 15 through th...

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

PropertyMeasurementUnit
Lengthaaaaaaaaaa
Pressureaaaaaaaaaa
Login to View More

Abstract

A casing degasser tool (CDT) is provided which is adapted to be inserted into production piping such as casing, slotted liners, or production tubing for use during well completion. The CDT comprises a body having a top end, a bottom end and an outer surface, at least one sealing element surrounding a portion of the outer surface of the body and a connection means located at or near the top end of the body for connecting a wire line or other pulling device to the CDT to assist in positioning the CDT within the production piping and for pulling the CDT through the length of the production piping. The CDT can be used when adding joints of production piping to prevent hydrocarbons from flowing to the surface of the well.

Description

[0001] This application claims the benefit of U.S. Provisional Application No. 60 / 521,523, filed May 13, 2004.FIELD OF THE INVENTION [0002] The present invention relates to an apparatus and method useful for well completion of a wellbore containing hydrocarbons. In particular, the present invention relates to an apparatus adapted to be inserted into production piping, such as casing, slotted liners, or tubing, to control the flow of fluids from the reservoir through the production piping during well completion operations and further relates to a process using said apparatus for running joints of production piping into a wellbore to form a completed well. BACKGROUND OF INVENTION [0003] Current technology uses kill fluids to stop the flow of reservoir fluids (e.g. hydrocarbons) so that well completion operations such as running production piping in the wellbore or installing a wellhead assembly at surface can be accomplished without the presence of hydrocarbons. Conventional kill flui...

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): B01D19/00E21B7/12E21B21/06E21B33/126E21B34/06E21B41/00
CPCE21B33/126E21B41/0021E21B34/06
Inventor LIVINGSTONE, JAMES I.
Owner PRESSSOL
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