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Title: Gas seal for an in situ oil shale retort and method of forming thermal barrier

Abstract

A gas seal is provided in an access drift excavated in a subterranean formation containing oil shale. The access drift is adjacent an in situ oil shale retort and is in gas communication with the fragmented permeable mass of formation particles containing oil shale formed in the in situ oil shale retort. The mass of formation particles extends into the access drift, forming a rubble pile of formation particles having a face approximately at the angle of repose of fragmented formation. The gas seal includes a temperature barrier which includes a layer of heat insulating material disposed on the face of the rubble pile of formation particles and additionally includes a gas barrier. The gas barrier is a gas-tight bulkhead installed across the access drift at a location in the access drift spaced apart from the temperature barrier.

Inventors:
 [1]
  1. (Mesa, CO)
Issue Date:
Research Org.:
Occidental Oil Shale, Inc. (Grand Junction, CO)
OSTI Identifier:
864133
Patent Number(s):
4315657
Assignee:
Occidental Oil Shale, Inc. (Grand Junction, CO) OSTI
DOE Contract Number:  
FC20-78LC10036
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
gas; seal; situ; oil; shale; retort; method; forming; thermal; barrier; provided; access; drift; excavated; subterranean; formation; containing; adjacent; communication; fragmented; permeable; mass; particles; formed; extends; rubble; pile; approximately; angle; repose; temperature; layer; heat; insulating; material; disposed; additionally; gas-tight; bulkhead; installed; location; spaced; apart; access drift; subterranean formation; permeable mass; formation particles; fragmented permeable; particles containing; containing oil; thermal barrier; situ oil; shale retort; insulating material; oil shale; spaced apart; material disposed; gas seal; formation containing; heat insulating; drift space; particles contain; /299/405/

Citation Formats

Burton, III, Robert S. Gas seal for an in situ oil shale retort and method of forming thermal barrier. United States: N. p., 1982. Web.
Burton, III, Robert S. Gas seal for an in situ oil shale retort and method of forming thermal barrier. United States.
Burton, III, Robert S. Fri . "Gas seal for an in situ oil shale retort and method of forming thermal barrier". United States. https://www.osti.gov/servlets/purl/864133.
@article{osti_864133,
title = {Gas seal for an in situ oil shale retort and method of forming thermal barrier},
author = {Burton, III, Robert S.},
abstractNote = {A gas seal is provided in an access drift excavated in a subterranean formation containing oil shale. The access drift is adjacent an in situ oil shale retort and is in gas communication with the fragmented permeable mass of formation particles containing oil shale formed in the in situ oil shale retort. The mass of formation particles extends into the access drift, forming a rubble pile of formation particles having a face approximately at the angle of repose of fragmented formation. The gas seal includes a temperature barrier which includes a layer of heat insulating material disposed on the face of the rubble pile of formation particles and additionally includes a gas barrier. The gas barrier is a gas-tight bulkhead installed across the access drift at a location in the access drift spaced apart from the temperature barrier.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

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