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Title: Method for maximizing shale oil recovery from an underground formation

Abstract

A method for maximizing shale oil recovery from an underground oil shale formation which has previously been processed by in situ retorting such that there is provided in the formation a column of substantially intact oil shale intervening between adjacent spent retorts, which method includes the steps of back filling the spent retorts with an aqueous slurry of spent shale. The slurry is permitted to harden into a cement-like substance which stabilizes the spent retorts. Shale oil is then recovered from the intervening column of intact oil shale by retorting the column in situ, the stabilized spent retorts providing support for the newly developed retorts.

Inventors:
 [1]
  1. (Livermore, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
863639
Patent Number(s):
4219237
Assignee:
United States of America as represented by United States (Washington, DC) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; maximizing; shale; oil; recovery; underground; formation; previously; processed; situ; retorting; provided; column; substantially; intact; intervening; adjacent; spent; retorts; steps; filling; aqueous; slurry; permitted; harden; cement-like; substance; stabilizes; recovered; stabilized; providing; support; newly; developed; oil recovery; oil shale; aqueous slurry; spent shale; shale oil; underground formation; situ retorting; providing support; situ retort; maximizing shale; /299/

Citation Formats

Sisemore, Clyde J. Method for maximizing shale oil recovery from an underground formation. United States: N. p., 1980. Web.
Sisemore, Clyde J. Method for maximizing shale oil recovery from an underground formation. United States.
Sisemore, Clyde J. Tue . "Method for maximizing shale oil recovery from an underground formation". United States. https://www.osti.gov/servlets/purl/863639.
@article{osti_863639,
title = {Method for maximizing shale oil recovery from an underground formation},
author = {Sisemore, Clyde J.},
abstractNote = {A method for maximizing shale oil recovery from an underground oil shale formation which has previously been processed by in situ retorting such that there is provided in the formation a column of substantially intact oil shale intervening between adjacent spent retorts, which method includes the steps of back filling the spent retorts with an aqueous slurry of spent shale. The slurry is permitted to harden into a cement-like substance which stabilizes the spent retorts. Shale oil is then recovered from the intervening column of intact oil shale by retorting the column in situ, the stabilized spent retorts providing support for the newly developed retorts.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

Patent:

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