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Title: Corrosion of materials and scaling in low-salinity East Mesa geothermal brines. Report of investigations/1981

Abstract

The Bureau of Mines, in pursuing its goal of extending the life span of strategic materials, conducted field corrosion studies at the East Mesa Known Geothermal Resources Area (KGRA) in the Imperial Valley, Calif., to determine the optimum materials of construction for use in geothermal mineral energy resource recovery plants. These studies included characterization of geothermal environments and in situ corrosion testing. The corrosion resistance of 10 alloys exposed to 5 brine and steam process environments was evaluated using the low-salinity, high-temperature brine from geothermal well Mesa 6-1.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Bureau of Mines, Avondale, MD (USA). Avondale Research Center
OSTI Identifier:
5559688
Report Number(s):
PB-81-181638
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
15 GEOTHERMAL ENERGY; ALUMINIUM ALLOYS; CORROSION RESISTANCE; CARBON STEELS; CHROMIUM-MOLYBDENUM STEELS; NICKEL ALLOYS; STAINLESS STEELS; TITANIUM ALLOYS; BRINES; CORROSION; CORROSIVE EFFECTS; EAST MESA GEOTHERMAL FIELD; MATERIALS TESTING; SCALING; SERVICE LIFE; ALLOYS; CHEMICAL REACTIONS; CHROMIUM ALLOYS; CHROMIUM STEELS; CORROSION RESISTANT ALLOYS; GEOTHERMAL FIELDS; IRON ALLOYS; IRON BASE ALLOYS; STEELS; TESTING 150903* -- Geothermal Engineering-- Corrosion, Scaling & Materials Development

Citation Formats

McCawley, F.X., Cramer, S.D., Riley, W.D., Carter, J.P., and Needham, P.B. Jr. Corrosion of materials and scaling in low-salinity East Mesa geothermal brines. Report of investigations/1981. United States: N. p., 1980. Web.
McCawley, F.X., Cramer, S.D., Riley, W.D., Carter, J.P., & Needham, P.B. Jr. Corrosion of materials and scaling in low-salinity East Mesa geothermal brines. Report of investigations/1981. United States.
McCawley, F.X., Cramer, S.D., Riley, W.D., Carter, J.P., and Needham, P.B. Jr. 1980. "Corrosion of materials and scaling in low-salinity East Mesa geothermal brines. Report of investigations/1981". United States. doi:.
@article{osti_5559688,
title = {Corrosion of materials and scaling in low-salinity East Mesa geothermal brines. Report of investigations/1981},
author = {McCawley, F.X. and Cramer, S.D. and Riley, W.D. and Carter, J.P. and Needham, P.B. Jr},
abstractNote = {The Bureau of Mines, in pursuing its goal of extending the life span of strategic materials, conducted field corrosion studies at the East Mesa Known Geothermal Resources Area (KGRA) in the Imperial Valley, Calif., to determine the optimum materials of construction for use in geothermal mineral energy resource recovery plants. These studies included characterization of geothermal environments and in situ corrosion testing. The corrosion resistance of 10 alloys exposed to 5 brine and steam process environments was evaluated using the low-salinity, high-temperature brine from geothermal well Mesa 6-1.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1980,
month = 1
}

Technical Report:
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  • Field corrosion studies were conducted at the East Mesa Known Geothermal Resources Area (KGRA) in the Imperial Valley, Calif., to determine the optimum materials of construction for use in geothermal mineral energy resource recovery plants. These studies included characterization of geothermal environments and in situ corrosion testing. The corrosion resistance of 10 alloys exposed to 5 brine and steam process environments was evaluated using the low-salinity, high-temperature brine from geothermal well Mesa 6-1. Of these alloys, Hastelloy C-276, Hastelloy S, Inconel 625, titanium-2 nickel, and 316 L stainless steel had excellent resistance to corrosion in all of the process environments;more » E-Brite 26-1 and 430 stainless steel had fair resistance. Although general corrosion rates for 4130 steel and 1020 carbon steel were substantially higher than those of the other iron-base alloys, these two alloys could prove useful in low-salinity process environments because of their low cost. Aluminum alloy 5005 was the least corrosion resistant alloys and pitted severely. Scales formed on all of the alloys in every process environment. Calcite, aragonite, and an amorphous silicate were the major components of the scales.« less
  • The high-temperature, high-salinity geothermal brines in the Salton Sea Known Geothermal Resources Area (KGRA) are a valuable source of energy and mineral values. The brine and steam produced from them are corrosive and cause early failure of many common materials of construction. Mass-loss and electrochemical corrosion measurements were conducted on over 60 metal alloys in brine and steam environments produced from geothermal well Magmamax No. 1, located at the Salton Sea KGRA, at temperatures from 180 to 215 C, and in synthetic Magmamax brine at 105 and 232 C. General corrosion, crevice and pitting corrosion, and stress corrosion were examinedmore » along with the effects of dissolved gases. The alloys with the most acceptable corrosion performance in high-temperature, high-salinity geothermal environments were the high-chromium ferritic stainless steels, the Inconels and Hastelloys, and the titanium alloys.« less
  • A combination of field and laboratory tests has been used to investigate the corrosion behavior of ten engineering alloys exposed to a low salinity geothermal brine (from the Nowlin No. 1 well). There was generally a good correlation between the field and laboratory test results, indicating that the brine was successfully reconstituted in the laboratory after collection at the wellhead and shipment to SRI. Reference electrodes suitable for use in high-temperature brines were designed, constructed and evaluated. The successful electrodes were used to determine corrosion potentials, to measure polarization resistances, and to obtain cyclic voltammograms. The data obtained were usedmore » to compare the corrosion rates of the test alloys and to assess their susceptibilities to pitting attack as a function of the sulfide content and pH of the brine.« less
  • Principal features of the work to be performed are described. Specifications for the various phases of construction are given. A bid form and the bidding schedule are included. (JGB)
  • The study included five parts: geology, seismicity, well testing, reservoir simulation, and geochemistry. Included in appendices are: production test data and discussion, interference tests, production tests in the northern portion of the East Mesa KGRA, conversion tables, chemical analysis of fluids from East Mesa wells, and results of laboratory studies of scale samples taken from the vertical tube evaporator. (MHR)