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Title: Shale oil recovery process

Abstract

A process of producing within a subterranean oil shale deposit a retort chamber containing permeable fragmented material wherein a series of explosive charges are emplaced in the deposit in a particular configuration comprising an initiating round which functions to produce an upward flexure of the overburden and to initiate fragmentation of the oil shale within the area of the retort chamber to be formed, the initiating round being followed in a predetermined time sequence by retreating lines of emplaced charges developing further fragmentation within the retort zone and continued lateral upward flexure of the overburden. The initiating round is characterized by a plurality of 5-spot patterns and the retreating lines of charges are positioned and fired along zigzag lines generally forming retreating rows of W's. Particular time delays in the firing of successive charges are disclosed.

Inventors:
 [1]
  1. (Concord, CA)
Issue Date:
Research Org.:
Geokinetics Inc. (Concord, CA)
OSTI Identifier:
863591
Patent Number(s):
4205610
Assignee:
Geokinetics Inc. (Concord, CA) OSTI
DOE Contract Number:  
FC20-78LC10787
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
shale; oil; recovery; process; producing; subterranean; deposit; retort; chamber; containing; permeable; fragmented; material; series; explosive; charges; emplaced; particular; configuration; comprising; initiating; functions; produce; upward; flexure; overburden; initiate; fragmentation; formed; followed; predetermined; time; sequence; retreating; lines; developing; zone; continued; lateral; characterized; plurality; 5-spot; patterns; positioned; fired; zigzag; forming; rows; delays; firing; successive; disclosed; time delays; shale deposit; explosive charges; predetermined time; oil recovery; time delay; oil shale; chamber containing; recovery process; explosive charge; shale oil; subterranean oil; time sequence; particular configuration; particular time; determined time; /102/166/

Citation Formats

Zerga, Daniel P. Shale oil recovery process. United States: N. p., 1980. Web.
Zerga, Daniel P. Shale oil recovery process. United States.
Zerga, Daniel P. Tue . "Shale oil recovery process". United States. https://www.osti.gov/servlets/purl/863591.
@article{osti_863591,
title = {Shale oil recovery process},
author = {Zerga, Daniel P.},
abstractNote = {A process of producing within a subterranean oil shale deposit a retort chamber containing permeable fragmented material wherein a series of explosive charges are emplaced in the deposit in a particular configuration comprising an initiating round which functions to produce an upward flexure of the overburden and to initiate fragmentation of the oil shale within the area of the retort chamber to be formed, the initiating round being followed in a predetermined time sequence by retreating lines of emplaced charges developing further fragmentation within the retort zone and continued lateral upward flexure of the overburden. The initiating round is characterized by a plurality of 5-spot patterns and the retreating lines of charges are positioned and fired along zigzag lines generally forming retreating rows of W's. Particular time delays in the firing of successive charges are disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {1}
}

Patent:

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