Title: Well sealing via thermite reactions

Abstract

A platform is formed in a well below a target plug zone by lowering a thermite reaction charge into the well and igniting it, whereby the products of the reaction are allowed to cool and expand to form a platform or support in the well. A main thermite reaction charge is placed above the platform and ignited to form a main sealing plug for the well. In some embodiments an upper plug is formed by igniting an upper thermite reaction charge above the main thermite reaction charge. The upper plug confines the products of ignition of the main thermite reaction charge.

Inventors:

Lowry, William Edward; Dunn, Sandra Dalvit

Issue Date:

Tue Nov 15 00:00:00 EST 2016

Research Org.:

Olympic Research, Inc. Port Townsend, WA (United States)

Sponsoring Org.:

USDOE

OSTI Identifier:

1332269

Patent Number(s):

9494011

Application Number:

15/205,176

Assignee:

Olympic Research, Inc. (Port Townsend, WA)

Patent Classifications (CPCs):

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

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

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

C09K8/426 - {for plugging}

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

E21B33/12 - Packers
E21B33/13 - Methods or devices for cementing, for plugging holes, crevices, or the like
E21B36/008 - {using chemical heat generating means}

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DOE Contract Number:  

SC0010135

Resource Type:

Patent

Resource Relation:

Patent File Date: 2016 Jul 08

Country of Publication:

United States

Language:

English

Subject:

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 36 MATERIALS SCIENCE