Field experiment of pH adjustment for acid geothermal fluids in Miravalles, Costa Rica

Tatsuto Iwanaga, Eiki Watanabe, Kazuo Hirowatari, Masao Yamauchi, Ryuichi Itoi, Sanchez R. Eddy, Rodriguez B. Alejandro

Research output: Contribution to journalConference articlepeer-review

Abstract

A series of expermiments involving injecting a 30 to 50% NaOH solution into the PGM-07 well at Miravalles, Costa Rica were performed in late 2003. These tests increased the pH of the produced fluid from its normal 2.3 to 4.5, 5.0 and 6.0. The results showed the optimum operating pH to be between 5.0 and 5.5. In this range both the corrosion rates and the scale deposition rates are minimized.

Original languageEnglish
Pages (from-to)693-695
Number of pages3
JournalTransactions - Geothermal Resources Council
Volume29
Publication statusPublished - Dec 1 2005
EventGeothermal Resources Council 2005 Annual Meeting - Reno, NV, United States
Duration: Sep 25 2005Sep 28 2005

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Geophysics

Fingerprint Dive into the research topics of 'Field experiment of pH adjustment for acid geothermal fluids in Miravalles, Costa Rica'. Together they form a unique fingerprint.

Cite this