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Title: Casings for use in a system for fracturing rock within a bore

Abstract

In disclosed explosive units for use in a wellbore, the casing can include a tubular outer body comprising grooves, pockets, or other variances in thickness that create stress concentrations that promote shear and tensile fragmentation instead of ductile expansion of the casing, which can negatively impact permeability of a wellbore. In other embodiments, the casing can comprise non-ductile and/or reactive material which responds to explosive or high temperature loading by brittle failure, disintegration, melting, burning, and/or chemically reacting with the energetic materials and/or the borehole environment. Such embodiments can enhance the permeability of the wellbore after detonation.

Inventors:
; ; ;
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568149
Patent Number(s):
10246982
Application Number:
14/905,361
Assignee:
Triad National Security, LLC (Los Alamos, NM)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
F - MECHANICAL ENGINEERING F42 - AMMUNITION F42B - EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Patent
Resource Relation:
Patent File Date: 07/15/2014
Country of Publication:
United States
Language:
English
Subject:
58 GEOSCIENCES; 03 NATURAL GAS; 04 OIL SHALES AND TAR SANDS; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE

Citation Formats

Mace, Jonathan Lee, Bronisz, Lawrence E., Steedman, David W., and Bradley, Christopher Robert. Casings for use in a system for fracturing rock within a bore. United States: N. p., 2019. Web.
Mace, Jonathan Lee, Bronisz, Lawrence E., Steedman, David W., & Bradley, Christopher Robert. Casings for use in a system for fracturing rock within a bore. United States.
Mace, Jonathan Lee, Bronisz, Lawrence E., Steedman, David W., and Bradley, Christopher Robert. Tue . "Casings for use in a system for fracturing rock within a bore". United States. https://www.osti.gov/servlets/purl/1568149.
@article{osti_1568149,
title = {Casings for use in a system for fracturing rock within a bore},
author = {Mace, Jonathan Lee and Bronisz, Lawrence E. and Steedman, David W. and Bradley, Christopher Robert},
abstractNote = {In disclosed explosive units for use in a wellbore, the casing can include a tubular outer body comprising grooves, pockets, or other variances in thickness that create stress concentrations that promote shear and tensile fragmentation instead of ductile expansion of the casing, which can negatively impact permeability of a wellbore. In other embodiments, the casing can comprise non-ductile and/or reactive material which responds to explosive or high temperature loading by brittle failure, disintegration, melting, burning, and/or chemically reacting with the energetic materials and/or the borehole environment. Such embodiments can enhance the permeability of the wellbore after detonation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {4}
}

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