Title: Canister, sealing method and composition for sealing a borehole

Abstract

Canister, sealing method and composition for sealing a borehole. The canister includes a container with slurry inside the container, one or more slurry exits at one end of the container, a pump at the other end of the container, and a piston inside that pushes the slurry though the slurry exit(s), out of the container, and into a borehole. An inflatable packer outside the container provides stabilization in the borehole. A borehole sealing material is made by combining an oxide or hydroxide and a phosphate with water to form a slurry which then sets to form a high strength, minimally porous material which binds well to itself, underground formations, steel and ceramics.

Inventors:

Brown, Donald W ^[1]; Wagh, Arun S ^[2]

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+ Show Inventor Affiliations

1. Los Alamos, NM
2. Orland Park, IL

Issue Date:

2003-05-13

Research Org.:

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

973155

Patent Number(s):

6561269

Application Number:

09/510,663

Assignee:

The Regents of the University of California (Los Alamos, NM)

Patent Classifications (CPCs):

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

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C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B22/0026 - {Salt water, e.g. seawater}
C04B20/002 - {Hollow or porous granular materials}
C04B28/34 - containing cold phosphate binders

C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

C09K8/46 - containing inorganic binders, e.g. Portland cement

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B20/0048 - {Fibrous materials}

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

E21B41/0042 - {characterised by sealing the junction between a lateral and a main bore}
E21B33/13 - Methods or devices for cementing, for plugging holes, crevices, or the like

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B41/53 - involving the removal of at least part of the materials of the treated article, {e.g. etching, drying of hardened concrete

E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING

E21B27/02 - Dump bailers, i.e. containers for depositing substances, e.g. cement or acids

C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA

C04B2103/20 - Retarders
C04B14/04 - Silica-rich materials
C04B2111/00301 - {Non-porous materials, e.g. macro-defect free [MDF] products}

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DOE Contract Number:  

W-7405-ENG-36

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE