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Geothermal well drilling fluid technology. A literature survey.

Authors
Liles-KJ; Sadler-LY III
Source
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, IC 8724, 1976 Jan; :1-24
Link
NIOSHTIC No.
10007913
Abstract
This Bureau of Mines paper describes the composition and properties of drilling fluids for use in high-temperature geothermal wells, and summarizes the problems encountered with fluid use at the known major geothermal sites throughout the world. These include the western continental United States, Hawaii, Italy, Iceland, Japan, New Zealand, and Turkey. Water-base drilling fluids of 9- to 10- lb/gal weights are relied on primarily for geothermal well use, although air drilling is sometimes used. Bentonite-lignite-water systems have been used most often, and additives such as polyacrylates, lignosulfonates, and chromates are employed to improve the properties of the basic system.
Publication Date
19760101
Document Type
IH; Information Circular
Fiscal Year
1976
NTIS Accession No.
PB-261307
NTIS Price
A03
Identifying No.
IC-8724
NIOSH Division
TURC
Source Name
Tuscaloosa, AL: U.S. Department of the Interior, Bureau of Mines, IC 8724
State
HI; AL
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