skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: System for fracturing an underground geologic formation

Patent ·
OSTI ID:1568516

An explosive system for fracturing an underground geologic formation adjacent to a wellbore can comprise a plurality of explosive units comprising an explosive material contained within the casing, and detonation control modules electrically coupled to the plurality of explosive units and configured to cause a power pulse to be transmitted to at least one detonator of at least one of the plurality of explosive units for detonation of the explosive material. The explosive units are configured to be positioned within a wellbore in spaced apart positions relative to one another along a string with the detonation control modules positioned adjacent to the plurality of explosive units in the wellbore, such that the axial positions of the explosive units relative to the wellbore are at least partially based on geologic properties of the geologic formation adjacent the wellbore.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC52-06NA25396
Assignee:
Triad National Security, LLC (Los Alamos, NM)
Patent Number(s):
10,329,890
Application Number:
15/421,077
OSTI ID:
1568516
Resource Relation:
Patent File Date: 01/31/2017
Country of Publication:
United States
Language:
English

References (81)

Well Shooting patent January 1960
Explosive Cartridge patent December 1961
Explosive charge unit patent September 1964
Coupling and centering device for explosive cartridges patent October 1966
Explosive Well Stimulation Apparatus patent April 1967
Selectively fired capsule type shaped charge perforation patent July 1967
Method for creating a permeable fragmented zone within an oil shale formation patent June 1969
Apparatus for Sealing Chambers in a Perforating Tool patent September 1970
Field Sensitized Explosive Devices and Sensitizing Method patent May 1971
Timed Sequence Blasting Assembly for Initiating Explosive Charges and Method patent November 1971
Economical, Tough, Debris-Free Shaped Charge Device and Perforating Gun Assembly Employing Same patent March 1972
Method of making a blasting agent having variable density patent October 1973
Apparatus for Compacting Matter within a Confined Area patent June 1974
Explosive device patent December 1975
Explosive-aided oil shale cavity formation patent May 1976
Oil and gas well stimulation patent September 1977
Well stimulating process patent March 1978
Perforating gun barrel patent December 1979
Linear explosive charge with constant detonation velocity and synchronous booster charges patent August 1981
High-velocity jet and propellant fracture device for gas and oil well production patent July 1983
Tubulars for curved bore holes patent November 1984
Time-delayed ignition system for a down-hole explosive tool patent February 1986
Electronic delay detonator patent May 1986
Controlled pulse and peroxide fracturing combined with a metal containing proppant patent May 1986
Integrated detonator delay circuits and firing console patent June 1987
Method for induced flow recovery of shallow crude oil deposits patent August 1987
Apparatus and method for use in subsurface oil and gas well perforating device patent April 1988
Detonator firing element patent April 1989
Initiating system patent October 1989
Remote detonation of explosive charges patent December 1989
Technique and apparatus for stimulating long intervals patent December 1990
Electro-optical detonator patent January 1991
Apparatus for selectively actuating well tools patent October 1991
Safety booster for explosive systems patent October 1992
Thermocouple-triggered igniter patent November 1992
Laser initiated dielectric breakdown switch patent September 1993
Method of fracturing wells using propellants patent March 1994
Detonating device for a secondary explosive charge patent June 1994
Fire control system patent January 1995
Method and apparatus for generating gas in a drilled borehole patent September 1995
Surface blasting system patent July 1996
Apparatus and method for perforating and fracturing patent February 1997
Explosive initiation system patent February 1998
Method for creating leak-tested perforating gun assemblies patent December 1999
Apparatus and method for performing built-in testing of a squib fire network patent October 2001
Apparatus and method for perforating and stimulating a subterranean formation patent January 2002
Controlled electromagnetic induction detonation system for initiation of a detonatable material patent July 2002
Configuration for triggering a restraining device in a motor vehicle patent October 2002
Access control for electronic blasting machines patent February 2005
High energy thermoplastic elastomer propellant patent February 2006
Apparatus to allow a coiled tubing tractor to traverse a horizontal wellbore patent September 2007
Blast key patent July 2010
Downhole perforation tool and method of subsurface fracturing patent January 2011
Wireless detonator assemblies, and corresponding networks patent April 2011
Detonation control system patent February 2013
Method and system for communicating and controlling electric detonators patent March 2013
Remote firing device with diverse initiators patent July 2013
Seisgun patent August 2013
Detonation command and control patent November 2015
Detonation command and control patent May 2016
Detonation control patent October 2016
Geologic fracturing method and resulting fractured geologic structure patent November 2016
System for fracturing an underground geologic formation patent March 2017
Apparatus and method for perforating and stimulating a subterranean formation patent-application May 2001
Use of aluminum in perforating and stimulating a subterranean formation and other engineering applications patent-application February 2003
Modular Propellant Assembly for Fracturing Wells patent-application August 2003
Controlling Transient Pressure Conditions In A Wellbore patent-application November 2004
Light Metal Explosives And Propellants patent-application December 2004
Method and apparatus for stimulating wells with propellants patent-application August 2006
Reduced Complexity Multifunction Expansion Card and Method of Operating the Same patent-application January 2007
Oil Well Perforators patent-application April 2010
Remote Initiator For The Remote Initiation Of Explosive Charges patent-application July 2010
Detonation Control System patent-application March 2011
Remote Explosion Detonation System patent-application July 2011
Electronic blast control system for multiple downhole operations patent-application January 2012
Pulse Detonation Tool, Method And System For Formation Fracturing patent-application June 2013
Method And Apparatus For Expendable Tubing-Conveyed Perforating Gun patent-application August 2013
Geologic Fracturing Method And Resulting Fractured Geologic Structure patent-application November 2014
Detonation Control patent-application December 2014
Explosive Assembly And Method patent-application December 2014
System For Fracturing An Underground Geologic Formation patent-application December 2014

Related Subjects