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Title: Methods for minimizing plastic flow of oil shale during in situ retorting

Abstract

In an in situ oil shale retorting process, plastic flow of hot rubblized oil shale is minimized by injecting carbon dioxide and water into spent shale above the retorting zone. These gases react chemically with the mineral constituents of the spent shale to form a cement-like material which binds the individual shale particles together and bonds the consolidated mass to the wall of the retort. This relieves the weight burden borne by the hot shale below the retorting zone and thereby minimizes plastic flow in the hot shale. At least a portion of the required carbon dioxide and water can be supplied by recycled product gases.

Inventors:
 [1];  [2]
  1. Los Altos, CA
  2. Livermore, CA
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
863119
Patent Number(s):
4096912
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
methods; minimizing; plastic; flow; oil; shale; situ; retorting; process; hot; rubblized; minimized; injecting; carbon; dioxide; water; spent; zone; gases; react; chemically; mineral; constituents; form; cement-like; material; binds; individual; particles; bonds; consolidated; mass; wall; retort; relieves; weight; burden; borne; below; minimizes; portion; required; supplied; recycled; product; retorting process; shale particles; product gases; product gas; situ oil; shale retort; carbon dioxide; oil shale; spent shale; shale retorting; rubblized oil; situ retorting; plastic flow; retorting zone; situ retort; injecting carbon; /166/

Citation Formats

Lewis, Arthur E, and Mallon, Richard G. Methods for minimizing plastic flow of oil shale during in situ retorting. United States: N. p., 1978. Web.
Lewis, Arthur E, & Mallon, Richard G. Methods for minimizing plastic flow of oil shale during in situ retorting. United States.
Lewis, Arthur E, and Mallon, Richard G. Sun . "Methods for minimizing plastic flow of oil shale during in situ retorting". United States. https://www.osti.gov/servlets/purl/863119.
@article{osti_863119,
title = {Methods for minimizing plastic flow of oil shale during in situ retorting},
author = {Lewis, Arthur E and Mallon, Richard G},
abstractNote = {In an in situ oil shale retorting process, plastic flow of hot rubblized oil shale is minimized by injecting carbon dioxide and water into spent shale above the retorting zone. These gases react chemically with the mineral constituents of the spent shale to form a cement-like material which binds the individual shale particles together and bonds the consolidated mass to the wall of the retort. This relieves the weight burden borne by the hot shale below the retorting zone and thereby minimizes plastic flow in the hot shale. At least a portion of the required carbon dioxide and water can be supplied by recycled product gases.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

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