Apparatus for controlling the inflow of production fluids from a subterranean well

a technology for subterranean wells and fluids, which is applied in the direction of drinking water installation, borehole/well accessories, constructions, etc., can solve the problems of poor reliability and complicated operation of devices, and achieve the effect of reducing the effective flow area and constant effective flow area

Inactive Publication Date: 2008-02-21
HALLIBURTON ENERGY SERVICES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]The present invention disclosed herein comprises a flow control apparatus for controlling the inflow of formation fluids. The flow control apparatus of the present invention can be used in completions requiring sand control. In addition, the flow control apparatus of the present invention is reliable in a variety of flow conditions.

Problems solved by technology

While certain benefits have been achieved through the use of such devices, many of these devices are complicated to operate and have suffered from poor reliability.

Method used

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  • Apparatus for controlling the inflow of production fluids from a subterranean well
  • Apparatus for controlling the inflow of production fluids from a subterranean well
  • Apparatus for controlling the inflow of production fluids from a subterranean well

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Embodiment Construction

[0025]While the making and using of various embodiments of the present invention are discussed in detail below, it should be appreciated that the present invention provides many applicable inventive concepts which can be embodied in a wide variety of specific contexts. The specific embodiments discussed herein are merely illustrative of specific ways to make and use the invention, and do not delimit the scope of the present invention.

[0026]Referring initially to FIG. 1, therein is depicted a well system including a plurality of fluid flow control devices embodying principles of the present invention that is schematically illustrated and generally designated 10. In the illustrated embodiment, a wellbore 12 extends through the various earth strata. Wellbore 12 has a substantially vertical section 14, the upper portion of which has installed therein a casing string 16. Wellbore 12 also has a substantially horizontal section 18 that extends through a hydrocarbon bearing subterranean for...

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Abstract

A flow control apparatus (100) for controlling the inflow of production fluids into an interior passage (118) of a tubular member (116) in a wellbore includes a flow restrictor (104) positioned in the flow path between an exterior of the tubular member (116) and the passage (118). The flow restrictor (104) has an active chamber (114) and a bypass chamber (112). A bypass tubing is disposed within the bypass chamber (112). The bypass tubing (122) has a constant effective flow area for allowing production fluids to enter the passage (118) from the bypass chamber (112). A plurality of flow blocking members (132) is disposed within the active chamber (114) and cooperate with outlets (128) of the tubular member (116) to autonomously vary an effective flow area for allowing production fluids to enter the passage (118) from the active chamber based upon the constituent composition of the production fluids.

Description

CROSS-REFERENCE TO RELATED PATENT APPLICATIONS[0001]This application is a continuation-in-part application of co-pending application Ser. No. 11 / 466,022 filed Aug. 21, 2006 entitled Autonomous Inflow Restrictors for Use in a Subterranean Well, the entire contents of which is hereby incorporated by reference.TECHNICAL FIELD OF THE INVENTION[0002]This invention relates, in general, to controlling the production of fluids from a well that traverses a hydrocarbon bearing subterranean formation and, in particular, to an apparatus for controlling the flow rate of production fluids from the subterranean well based upon the constituent composition of the production fluid.BACKGROUND OF THE INVENTION[0003]Without limiting the scope of the present invention, its background will be described with reference to producing fluid from a subterranean formation, as an example.[0004]During the completion of a well that traverses a hydrocarbon bearing subterranean formation, production tubing and variou...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E21B43/12
CPCE21B43/12E21B34/08
Inventor SAETRE, GEIRMUNDFREYER, RUNE
Owner HALLIBURTON ENERGY SERVICES INC
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