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Systems and methods for providing zonal isolation in wells

A wellbore wall and conduit technology, applied in sealing/isolation, wellbore/well valve device, earthwork drilling and production, etc., can solve problems such as ineffective gravel packing and isolation functions

Inactive Publication Date: 2012-03-28
EXXONMOBIL UPSTREAM RES CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if any seepage paths exist, water or gas will be produced along the same paths and will render the gravel pack's containment function ineffective

Method used

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  • Systems and methods for providing zonal isolation in wells
  • Systems and methods for providing zonal isolation in wells
  • Systems and methods for providing zonal isolation in wells

Examples

Experimental program
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Embodiment approach

[0055] Embodiments: See "one embodiment", "an embodiment", "some embodiments", "an aspect", "aspects", "some aspects", "some implementations", "an implementation" or "implementation" throughout the specification " means that a particular component, feature, structure, method, or characteristic described in connection with an embodiment, aspect, or implementation is included in at least one embodiment and / or implementation of the claimed subject matter. Thus, where the phrase "in one embodiment" or "in an embodiment" or "in some embodiments" (or "aspects" or "implementations") appears in various places throughout the specification, not necessarily all refer to Same embodiment and / or implementation. Furthermore, the specific features, structures, methods or characteristics of any one or more embodiments or implementations may be combined in any suitable manner in one or more additional or different embodiments or implementations.

[0056] Exemplary: "Exemplary" is used herein e...

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PUM

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Abstract

Systems and methods for providing zonal isolation in a hydrocarbon well include or utilize a tubular assembly having an upstream manifold, a gravel packing conduit, a transport conduit, a leak-off conduit, and a downstream flow path. The tubular assembly is adapted to receive a gravel-laden slurry and to direct at least a portion of the same to the gravel packing conduit. The gravel-laden slurry exiting the gravel packing conduit packs the annulus between the tubular assembly and the wellbore by dehydrating at least in part through the leak-off conduit. The leak-off conduit is further gravel-packed by the gravel- laden slurry received by the tubular assembly. The leak-off conduit is dehydrated through a flow control valve. Together, the gravel packed annulus and the gravel packed leak-off conduit provide a gravel-based zonal isolation system.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Application No. 61 / 169,160, filed April 14, 2009, which is hereby incorporated by reference in its entirety for all purposes. technical field [0003] The present disclosure generally relates to zonal isolation (zonal isolation) systems used in wells. More specifically, the present disclosure relates to systems and methods for providing gravel-based zonal isolation in wells. Background technique [0004] This section is intended to introduce the reader to various aspects of art that may be relevant to embodiments of the invention. It is believed that this discussion is helpful in providing the reader with information to facilitate a better understanding of the specific techniques of the present invention. Accordingly, it should be understood that these statements are to be read in this light, and not necessarily as admissions of prior art. [0005] Producing oil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B34/12
CPCE21B43/04
Inventor C·S·耶M·D·巴里M·T·赫克D·C·海伯勒
Owner EXXONMOBIL UPSTREAM RES CO