Chemical logging of geothermal wells
Abstract
The presence of geothermal aquifers can be detected while drilling in geothermal formations by maintaining a chemical log of the ratio of the concentrations of calcium to carbonate and bicarbonate ions in the return drilling fluid. A continuous increase in the ratio of the concentrations of calcium to carbonate and bicarbonate ions is indicative of the existence of a warm or hot geothermal aquifer at some increased depth.
- Inventors:
-
- Idaho Falls, ID
- Issue Date:
- Research Org.:
- Idaho National Laboratory (INL), Idaho Falls, ID (United States)
- OSTI Identifier:
- 864078
- Patent Number(s):
- 4306879
- Assignee:
- United States of America as represented by United States (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
- DOE Contract Number:
- EY-76-C-07-1540
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- chemical; logging; geothermal; presence; aquifers; detected; drilling; formations; maintaining; log; ratio; concentrations; calcium; carbonate; bicarbonate; return; fluid; continuous; increase; indicative; existence; warm; hot; aquifer; increased; depth; chemical log; drilling fluid; /436/
Citation Formats
Allen, Charles A, and McAtee, Richard E. Chemical logging of geothermal wells. United States: N. p., 1981.
Web.
Allen, Charles A, & McAtee, Richard E. Chemical logging of geothermal wells. United States.
Allen, Charles A, and McAtee, Richard E. Thu .
"Chemical logging of geothermal wells". United States. https://www.osti.gov/servlets/purl/864078.
@article{osti_864078,
title = {Chemical logging of geothermal wells},
author = {Allen, Charles A and McAtee, Richard E},
abstractNote = {The presence of geothermal aquifers can be detected while drilling in geothermal formations by maintaining a chemical log of the ratio of the concentrations of calcium to carbonate and bicarbonate ions in the return drilling fluid. A continuous increase in the ratio of the concentrations of calcium to carbonate and bicarbonate ions is indicative of the existence of a warm or hot geothermal aquifer at some increased depth.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Jan 01 00:00:00 EST 1981},
month = {Thu Jan 01 00:00:00 EST 1981}
}
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