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Title: 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:
;
OSTI Identifier:
5111335
Assignee:
Dept. of Energy TIC; ERA-05-037944; EDB-80-116466
DOE Contract Number:  
EY-76-C-07-1540
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 19 Dec 1979
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; GEOTHERMAL WELLS; CHEMICAL LOGGING; ACID CARBONATES; CALCIUM COMPOUNDS; CARBONATES; DRILLING FLUIDS; GEOTHERMAL EXPLORATION; RAFT RIVER VALLEY; ALKALINE EARTH METAL COMPOUNDS; CARBON COMPOUNDS; EXPLORATION; FLUIDS; IDAHO; NORTH AMERICA; OXYGEN COMPOUNDS; PACIFIC NORTHWEST REGION; USA; WELL LOGGING; WELLS; 150302* - Geothermal Exploration & Exploration Technology- Geochemical Techniques & Surveys; 150303 - Geothermal Exploration & Exploration Technology- Exploratory Drilling & Well Logging

Citation Formats

Allen, C.A., and McAtee, R.E. Chemical logging of geothermal wells. United States: N. p., Web.
Allen, C.A., & McAtee, R.E. Chemical logging of geothermal wells. United States.
Allen, C.A., and McAtee, R.E. . "Chemical logging of geothermal wells". United States.
@article{osti_5111335,
title = {Chemical logging of geothermal wells},
author = {Allen, C.A. and McAtee, R.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 = {},
month = {}
}