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Title: Cementing a wellbore using cementing material encapsulated in a shell

A system for cementing a wellbore penetrating an earth formation into which a pipe extends. A cement material is positioned in the space between the wellbore and the pipe by circulated capsules containing the cement material through the pipe into the space between the wellbore and the pipe. The capsules contain the cementing material encapsulated in a shell. The capsules are added to a fluid and the fluid with capsules is circulated through the pipe into the space between the wellbore and the pipe. The shell is breached once the capsules contain the cementing material are in position in the space between the wellbore and the pipe.
Inventors:
; ; ; ; ; ;
Issue Date:
OSTI Identifier:
1346966
Assignee:
Lawrence Livermore National Security, LLC LLNL
Patent Number(s):
9,593,552
Application Number:
15/226,512
Contract Number:
AC52-07NA27344
Resource Relation:
Patent File Date: 2016 Aug 02
Research Org:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 58 GEOSCIENCES

Other works cited in this record:

Use of radiation-induced polymers in cement slurries
patent, February 1976

Method for primary cementing a well with a drilling mud which may be converted to cement using chemical initiators with or without additional irradiation
patent, August 1998

Method for primary cementing a well using a drilling mud composition which may be converted to cement upon irradiation
patent, September 1988

Melamine/formaldehyde cross-linking of polymers for profile control
patent, November 1988

Enhanced oil recovery profile control with crosslinked anionic acrylamide copolymer gels
patent, January 1992

High temperature stable gels
patent, September 1993

Enhancing gel strength
patent, January 2000

Well cementing methods using compositions containing liquid polymeric additives
patent, July 2001

Hydrocapsules and method of preparation thereof
patent, August 2004

Crosslinkable polymer compositions and associated methods
patent, October 2007

Casing strings and methods of using such strings in subterranean cementing operations
patent, December 2007

Radiation-induced thickening for set-on-command sealant compositions and methods of use
patent, April 2012

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