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Title: Apparatus for providing directional permeability measurements in subterranean earth formations

Abstract

Directional permeability measurements are provided in a subterranean earth formation by injecting a high-pressure gas from a wellbore into the earth formation in various azimuthal directions with the direction having the largest pressure drop being indicative of the maximum permeability direction. These measurements are provided by employing an inflatable boot containing a plurality of conduits in registry with a like plurality of apertures penetrating the housing at circumferentially spaced-apart locations. These conduits are, in turn, coupled through a valved manifold to a source of pressurized gas so that the high-pressure gas may be selectively directed through any conduit into the earth formation defining the bore with the resulting difference in the pressure drop through the various conduits providing the permeability measurements.

Inventors:
 [1]
  1. Morgantown, WV
Issue Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
OSTI Identifier:
862903
Patent Number(s):
4043192
Assignee:
United States of America as represented by United States Energy (Washington, DC)
Patent Classifications (CPCs):
E - FIXED CONSTRUCTIONS E21 - EARTH DRILLING E21B - EARTH DRILLING, e.g. DEEP DRILLING
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; providing; directional; permeability; measurements; subterranean; earth; formations; provided; formation; injecting; high-pressure; gas; wellbore; various; azimuthal; directions; direction; largest; pressure; drop; indicative; maximum; employing; inflatable; boot; containing; plurality; conduits; registry; apertures; penetrating; housing; circumferentially; spaced-apart; locations; coupled; valved; manifold; source; pressurized; selectively; directed; conduit; defining; bore; resulting; difference; permeability measurements; high-pressure gas; maximum permeability; earth formations; circumferentially spaced; earth formation; pressure gas; pressure drop; subterranean earth; pressurized gas; spaced-apart locations; providing direct; permeability direction; selectively direct; apart locations; directional permeability; /73/

Citation Formats

Shuck, Lowell Z. Apparatus for providing directional permeability measurements in subterranean earth formations. United States: N. p., 1977. Web.
Shuck, Lowell Z. Apparatus for providing directional permeability measurements in subterranean earth formations. United States.
Shuck, Lowell Z. Sat . "Apparatus for providing directional permeability measurements in subterranean earth formations". United States. https://www.osti.gov/servlets/purl/862903.
@article{osti_862903,
title = {Apparatus for providing directional permeability measurements in subterranean earth formations},
author = {Shuck, Lowell Z},
abstractNote = {Directional permeability measurements are provided in a subterranean earth formation by injecting a high-pressure gas from a wellbore into the earth formation in various azimuthal directions with the direction having the largest pressure drop being indicative of the maximum permeability direction. These measurements are provided by employing an inflatable boot containing a plurality of conduits in registry with a like plurality of apertures penetrating the housing at circumferentially spaced-apart locations. These conduits are, in turn, coupled through a valved manifold to a source of pressurized gas so that the high-pressure gas may be selectively directed through any conduit into the earth formation defining the bore with the resulting difference in the pressure drop through the various conduits providing the permeability measurements.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1977},
month = {1}
}

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