Isolation packer inflated by a fluid filtered from a gravel laden slurry

a technology of filtered fluid and packer, which is applied in the direction of fluid removal, sealing/packing, and wellbore/well accessories, etc., can solve the problems of time-consuming, difficult to perform, and unreliable in their outcome, so as to save time and expense, the effect of difficult to perform

Inactive Publication Date: 2005-02-24
HALLIBURTON ENERGY SERVICES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0010] This invention offers a number of benefits over conventional wellbore completion tools. Usually a pre-gravel pack trip would be undertaken to isolate a sump area, for instance, with a cement plug or an open hole packer. This pre-gravel pack trip comprise additional steps that are costly, time consuming and are often difficult t

Problems solved by technology

This pre-gravel pack trip comprise additional steps that are costly, time c

Method used

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  • Isolation packer inflated by a fluid filtered from a gravel laden slurry
  • Isolation packer inflated by a fluid filtered from a gravel laden slurry
  • Isolation packer inflated by a fluid filtered from a gravel laden slurry

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Embodiment Construction

[0022] Referring to the attached drawings, FIG. 1 is a depiction of the prior art and illustrates a wellbore 10 that has penetrated a subterranean zone 12 that includes a productive formation 14. The wellbore 10 has a casing 16 that has been cemented in place. The casing 16 has a plurality of perforations 18 which allow fluid communication between the wellbore 10 and the productive formation 14. A well tool 20 is positioned within the casing 16 in a position adjacent to the productive formation 14, which is to be gravel packed.

[0023] The present invention can be utilized in both cased wells and open hole completions, as well as vertical wells and non-vertical wells. For ease of illustration of the relative positions of the producing zones in FIGS. 1-4, a cased well having perforations will be used. More detailed illustrations of the invention being utilized in an open hole completion are shown in FIGS. 8-9.

[0024] Still referring to FIG. 1, the well tool 20 comprises a tubular memb...

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Abstract

Tools and methods for completing a wellbore that comprise an isolation packer with a particulate filter and inflatable element. The isolation packer is adapted to direct a gravel laden slurry to the particulate filter, where the filter removes a substantial amount of the particulate matter from the gravel laden slurry thereby producing an inflating fluid that is substantially free of particulate matter. The inflating fluid then inflates the inflatable element thereby creating a seal in the wellbore.

Description

TECHNICAL FIELD [0001] This invention generally relates to inflatable packers used to complete subterranean wells and in particular to hydraulically actuated inflatable packers. More specifically, this invention relates to hydraulically actuated inflatable packers that are inflated by a fluid filtered from a gravel laden slurry or other fluid with suspended solids. BACKGROUND OF THE INVENTION [0002] Oil and natural gas may be obtained from subterranean geologic formations, referred to as reservoir, by drilling wells that penetrate hydrocarbon-bearing formations. In order to obtain hydrocarbons from a wellbore, the well usually must be completed. [0003] Well completion involves the design, selection, and installation of equipment and materials in or around a wellbore for conveying, pumping, or controlling the production or injection of fluids from and / or to the wellbore. After a well has been completed, production of oil and gas may begin. Sand or silt flowing into the wellbore from ...

Claims

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Application Information

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IPC IPC(8): E21B33/127E21B43/04
CPCE21B43/04E21B33/127
Inventor HAILEY, TRAVIS T. JR.
Owner HALLIBURTON ENERGY SERVICES INC
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