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Methods and apparatus for fiber-based diversion

a technology of fiber-based fluid and method, applied in the direction of fluid removal, borehole/well accessories, sealing/packing, etc., can solve the problems of increasing both time and cost of operation

Inactive Publication Date: 2008-08-21
SCHLUMBERGER TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0036]Apparatus and methods of the invention allow the bailer to be run in hole along with the perforation guns, the ability to store enough fiber-based diverter composition for plugging multiple zones, the ability to place multiple fiber-based slugs to cover previously fracture stimulated layers, and the ability to be recharged with the fiber-based diverter on location.

Problems solved by technology

The inherent disadvantage of bridge plugs is that they require setting and drill-out when used for more than one zone; hence increasing both time and cost of the operation.

Method used

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  • Methods and apparatus for fiber-based diversion
  • Methods and apparatus for fiber-based diversion

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Embodiment Construction

[0043]In the following description, numerous details are set forth to provide an understanding of the present invention. However, it will be understood by those skilled in the art that the present invention may be practiced without these details and that numerous variations or modifications from the described embodiments may be possible.

[0044]In the specification and appended claims, the terms “connect”, “connection”, “connected”, “in connection with”, and “connecting” are used to mean “in direct connection with” or “in connection with via another element”; and the term “set” is used to mean “one element” or “more than one element”. As used herein, the terms “up” and “down”, “upper” and “lower”, “upwardly” and downwardly”, “upstream” and “downstream”; “above” and “below”; and other like terms indicating relative positions above or below a given point or element are used in this description to more clearly describe some embodiments of the invention. However, when applied to equipment...

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PUM

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Abstract

Methods and apparatus are described for fiber-based fluid diversion in hydrocarbon-containing wells. One method embodiment of the invention comprises treating a first zone in a well; conveying a tool into the well, the tool carrying a composition comprising fibers; and activating the tool to deploy enough of the composition to form a fibrous plug and at least partially plug the first zone. The tool may be a positive displacement bailer, and an apparatus of the invention comprises a positive displacement bailer; the bailer comprising a compartment for holding a composition comprising fibers for forming fiber-based plugs in a well; the compartment partially defined by and cooperating with a positive displacement portion to expel and selectively deploy the composition in the well to form one or more fiber-based plugs in the well.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application claims priority under 35 U.S.C. § 119(e) to U.S. Provisional Application Ser. No. 60 / 890,085, filed Feb. 15, 2007, incorporated by reference herein in its entirety.BACKGROUND OF THE INVENTION[0002]1. Field of Invention[0003]The present invention provides efficient methods and apparatus of fiber-based fluid diversion in hydrocarbon-containing wells. More specifically, the present invention provides efficient methods and apparatus to treat multiple zones in hydrocarbon-containing wells by use of fiber-based diversion.[0004]2. Related Art[0005]A common technique for achieving zonal isolation useful for treating and / or completing wells having multiple pay zones is through use of a wireline deployable bridge plug such as is described in U.S. Pat. No. 6,708,768. The inherent disadvantage of bridge plugs is that they require setting and drill-out when used for more than one zone; hence increasing both time and cost of the...

Claims

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Application Information

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IPC IPC(8): E21B43/116
CPCE21B43/267E21B43/26E21B33/1208
Inventor BUSTOS, OSCARBONEY, CURTIS L.
Owner SCHLUMBERGER TECH CORP
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