Evaluation of aqueous-foam surfactants for geothermal drilling fluids

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Description

Aqueous foams are potentially useful drilling and cleanout fluids for geothermal applications. Successful use of foams requires surfactants (foaming agents) that can survive in the high-temperature geothermal environment. In this study, solutions of aqueous-foam-forming surfactants have been exposed to 260/sup 0/C (500/sup 0/F) and 310/sup 0/C (590/sup 0/F) in various chemical environments to determine if they can survive and make foams after exposure. Comparison of foams before and after exposure and the change in solution pH were used to evaluate their performance. Controlled liquid-volume-fraction foams, made in a packed-bed foam generator, were used for all tests. These tests have shown ... continued below

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Pages: 32

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Rand, P.B. & Montoya, O.J. July 1, 1983.

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Description

Aqueous foams are potentially useful drilling and cleanout fluids for geothermal applications. Successful use of foams requires surfactants (foaming agents) that can survive in the high-temperature geothermal environment. In this study, solutions of aqueous-foam-forming surfactants have been exposed to 260/sup 0/C (500/sup 0/F) and 310/sup 0/C (590/sup 0/F) in various chemical environments to determine if they can survive and make foams after exposure. Comparison of foams before and after exposure and the change in solution pH were used to evaluate their performance. Controlled liquid-volume-fraction foams, made in a packed-bed foam generator, were used for all tests. These tests have shown that many commercially available surfactants can survive short high-temperature cycles in mild acids, mild bases, and salt solutions as evidenced by their ability to make foams after exposure to high temperatures.

Physical Description

Pages: 32

Notes

NTIS, PC A03/MF A01.

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  • Other: DE83016446
  • Report No.: SAND-83-0584
  • Grant Number: AC04-76DP00789
  • DOI: 10.2172/5623483 | External Link
  • Office of Scientific & Technical Information Report Number: 5623483
  • Archival Resource Key: ark:/67531/metadc1092761

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • July 1, 1983

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • May 18, 2018, 1:31 p.m.

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Rand, P.B. & Montoya, O.J. Evaluation of aqueous-foam surfactants for geothermal drilling fluids, report, July 1, 1983; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc1092761/: accessed November 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.