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Title: Method of fracturing a geological formation

Abstract

An improved method of fracturing a geological formation surrounding a well bore is disclosed. A relatively small explosive charge is emplaced in a well bore and the bore is subsequently hydraulically pressurized to a pressure less than the formation breakdown pressure and preferably greater than the fracture propagation pressure of the formation. The charge is denoted while the bore is so pressurized, resulting in the formation of multiple fractures in the surrounding formation with little or no accompanying formation damage. Subsequent hydraulic pressurization can be used to propagate and extend the fractures in a conventional manner. The method is useful for stimulating production of oil, gas and possibly water from suitable geologic formations.

Inventors:
 [1]
  1. 2679-B Walnut, Los Alamos, NM 87544
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
867279
Patent Number(s):
US 4903772
Assignee:
Johnson, James O. (2679-B Walnut, Los Alamos, NM 87544)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; fracturing; geological; formation; improved; surrounding; bore; disclosed; relatively; explosive; charge; emplaced; subsequently; hydraulically; pressurized; pressure; breakdown; preferably; fracture; propagation; denoted; resulting; multiple; fractures; accompanying; damage; subsequent; hydraulic; pressurization; propagate; extend; conventional; manner; useful; stimulating; production; oil; gas; possibly; water; suitable; geologic; formations; improved method; explosive charge; geological formation; conventional manner; formation surrounding; geologic formations; /166/299/

Citation Formats

Johnson, James O. Method of fracturing a geological formation. United States: N. p., 1990. Web.
Johnson, James O. Method of fracturing a geological formation. United States.
Johnson, James O. 1990. "Method of fracturing a geological formation". United States. https://www.osti.gov/servlets/purl/867279.
@article{osti_867279,
title = {Method of fracturing a geological formation},
author = {Johnson, James O},
abstractNote = {An improved method of fracturing a geological formation surrounding a well bore is disclosed. A relatively small explosive charge is emplaced in a well bore and the bore is subsequently hydraulically pressurized to a pressure less than the formation breakdown pressure and preferably greater than the fracture propagation pressure of the formation. The charge is denoted while the bore is so pressurized, resulting in the formation of multiple fractures in the surrounding formation with little or no accompanying formation damage. Subsequent hydraulic pressurization can be used to propagate and extend the fractures in a conventional manner. The method is useful for stimulating production of oil, gas and possibly water from suitable geologic formations.},
doi = {},
url = {https://www.osti.gov/biblio/867279}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1990},
month = {1}
}