Method for Increasing the Fluid Productivity of a Hydraulically Fractured Well

a technology of hydraulic fracture and fluid productivity, which is applied in the direction of fluid removal, borehole/well accessories, chemistry apparatus and processes, etc., can solve the problems of production reduction or loss, shortening the life of production equipment, and continuing problems, so as to reduce the production of particulate proppants and increase the fluid productivity of the well

Inactive Publication Date: 2009-08-20
BP CORP NORTH AMERICA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]The present invention comprises a method for reducing the production of particulate proppants and fracture plugging during production of fluids from a hydraulic fracture in a subterranean formation penetrated from an earth surface by a well and increasing the fluid productivity of the well, the method comprising: injecting a fluid comprising material such as shape memory alloy (SMA) proppants and super elastic proppants

Problems solved by technology

Frequently these problems may continue after an initial period.
If particulates are allowed to flow into the wellbore they can fill the wellbore to the level of the fractures resulting in production reduction or loss.
These materials in the produced fluids if produced to the surface may result in shortening the life of production equipment and the

Method used

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Embodiment Construction

[0016]According to the present invention, a method is disclosed for reducing the production of particulate proppant and fracture plugging during the production of fluids from a hydraulic fracture in a subterranean formation penetrated from an earth surface by a well bore is disclosed.

[0017]The method includes injecting a fluid containing SMA proppants having an expansion temperature below a temperature of the subterranean formation but above the temperature at which the fluid (proppant slurry) containing the proppants is handled and injected. The SMA proppant particles may be of any desired shape, such as spheres, cubes, pyramids, oblate or prolate spheres, cylinders, pillows or any other shape or structure which allows a greater flow of fluids in the fracture. The SMA proppants are injected in combination with dissolvable proppant particles in a slurry of the SMA proppants and the dissolvable solids in a hydraulic fluid into the fracture through the well. Generally, the weight rati...

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Abstract

A method for increasing the fluid productivity of a hydraulically fractured well and reducing the production of particulate proppant plugging during production of fluids from a hydraulic fracture in a subterranean formation penetrated from an earth surface by a well by the use of smart memory particles and dissolvable proppant particles in the fracturing fluid.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority, under 35 U.S.C. §119(e), of U.S. Provisional Application No. 61 / 066,272, filed Feb. 19, 2008, incorporated herein by this reference.FIELD OF THE INVENTION[0002]The present invention relates to a method for increasing the fluid productivity of a hydraulically fractured well and reducing the production of particulate proppant during production of fluids from a hydraulic fracture in a subterranean formation penetrated from an earth surface by a well.BACKGROUND OF THE INVENTION[0003]In the production of fluids from subterranean formations, it is found that fracturing the formation in many instances leads to increased productivity from wells penetrating the formation. Fracturing is used to form fractures in formations penetrated by a cased well where perforations are positioned in a zone of interest and thereafter a fracturing fluid is injected at sufficient pressure to cause fractures in the formation which p...

Claims

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Application Information

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IPC IPC(8): E21B43/267
CPCE21B43/267C09K8/80
Inventor RODRIGUEZ, ALEJANDRO
Owner BP CORP NORTH AMERICA INC
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