Portable device and method for determining permeability characteristics of earth formations
Abstract
The invention is directed to a device which is used for determining permeability characteristics of earth formations at the surface thereof. The determination of the maximum permeability direction and the magnitude of permeability are achieved by employing a device comprising a housing having a central fluid-injection port surrounded by a plurality of spaced-apart fluid flow and pressure monitoring ports radially extending from the central injection port. With the housing resting on the earth formation in a relatively fluid-tight manner as provided by an elastomeric pad disposed therebetween, fluid is injected through the central port into the earth formation and into registry with the fluid-monitoring ports disposed about the injection port. The fluid-monitoring ports are selectively opened and the flow of the fluid through the various fluid ports is measured so as to provide a measurement of flow rates and pressure distribution about the center hole which is indicative on the earth formation permeability direction and magnitude. For example, the azimuthal direction of the fluid-monitoring ports in the direction through which the greatest amount of injected fluid flows as determined by the lowest pressure distribution corresponds to the direction of maximum permeability in the earth formation.
- Inventors:
-
- Morgantown, WV
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- OSTI Identifier:
- 862934
- Patent Number(s):
- 4052885
- 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
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- portable; device; method; determining; permeability; characteristics; earth; formations; directed; surface; determination; maximum; direction; magnitude; achieved; employing; comprising; housing; central; fluid-injection; surrounded; plurality; spaced-apart; fluid; flow; pressure; monitoring; ports; radially; extending; injection; formation; relatively; fluid-tight; manner; provided; elastomeric; pad; disposed; therebetween; injected; registry; fluid-monitoring; selectively; various; measured; provide; measurement; rates; distribution; center; indicative; example; azimuthal; amount; flows; determined; lowest; corresponds; pressure distribution; maximum permeability; disposed therebetween; earth formations; earth formation; flow rates; flow rate; fluid flow; device comprising; radially extending; fluid flows; permeability direction; permeability characteristics; pad disposed; lowest pressure; various fluid; portable device; determining permeability; /73/
Citation Formats
Shuck, Lowell Z. Portable device and method for determining permeability characteristics of earth formations. United States: N. p., 1977.
Web.
Shuck, Lowell Z. Portable device and method for determining permeability characteristics of earth formations. United States.
Shuck, Lowell Z. Sat .
"Portable device and method for determining permeability characteristics of earth formations". United States. https://www.osti.gov/servlets/purl/862934.
@article{osti_862934,
title = {Portable device and method for determining permeability characteristics of earth formations},
author = {Shuck, Lowell Z},
abstractNote = {The invention is directed to a device which is used for determining permeability characteristics of earth formations at the surface thereof. The determination of the maximum permeability direction and the magnitude of permeability are achieved by employing a device comprising a housing having a central fluid-injection port surrounded by a plurality of spaced-apart fluid flow and pressure monitoring ports radially extending from the central injection port. With the housing resting on the earth formation in a relatively fluid-tight manner as provided by an elastomeric pad disposed therebetween, fluid is injected through the central port into the earth formation and into registry with the fluid-monitoring ports disposed about the injection port. The fluid-monitoring ports are selectively opened and the flow of the fluid through the various fluid ports is measured so as to provide a measurement of flow rates and pressure distribution about the center hole which is indicative on the earth formation permeability direction and magnitude. For example, the azimuthal direction of the fluid-monitoring ports in the direction through which the greatest amount of injected fluid flows as determined by the lowest pressure distribution corresponds to the direction of maximum permeability in the earth formation.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1977},
month = {Sat Jan 01 00:00:00 EST 1977}
}