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Title: Encapsulated proppants

Patent ·
OSTI ID:1418986
; ; ; ; ;

A capsule for carrying a proppant for emplaced in a formation containing formation fluid by a hydraulic fracture operation using a fracturing fluid. The capsule includes a capsule body. The capsule body includes a proppant. There is a surface layer on the capsule body that is permeable to the formation fluid or the fracturing fluid or is permeable to both the formation fluid and the fracturing fluid. The proppant material is dry cement that interacts with the formation fluid or the fracturing fluid or both the formation fluid and the fracturing fluid that migrate through the surface layer and is taken up by the dry cement causing the dry cement to harden.

Research Organization:
Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-07NA27344
Assignee:
Lawrence Livermore National Security, LLC (Livermore, CA)
Patent Number(s):
9,879,175
Application Number:
15/001,590
OSTI ID:
1418986
Resource Relation:
Patent File Date: 2016 Jan 20
Country of Publication:
United States
Language:
English

References (14)

Low friction loss method for fracturing a subterranean geothermal earth formation patent March 1978
Encapsulated breakers and method for use in treating subterranean formations patent December 1994
Coating well proppant with hardenable resin-fiber composites patent July 1999
Encapsulated chemicals for use in controlled time release applications and methods patent September 2002
Hydrocapsules and method of preparation thereof patent August 2004
Permeable cement and methods of fracturing utilizing permeable cement in subterranean well bores patent May 2006
Method of treating subterranean formations with porous particulate materials patent January 2011
Reduced-density proppants and methods of using reduced-density proppants to enhance their transport in well bores and fractures patent-application January 2005
Soluble fibers for use in resin coated proppant patent-application September 2005
Time release multisource marker and method of deployment patent-application March 2006
Composition and method for making a proppant July 2007
Curable resin coated low apparent specific gravity beads and method of using the same patent-application September 2007
Cement Compositions and Methods Utilizing Nano-Hydraulic Cement patent-application May 2009
Cement-based particulates and methods of use patent-application June 2009

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