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

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

Energy Resources Engineering

Research output: Contribution to journal › Conference article › peer-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 language	English
Pages (from-to)	693-695
Number of pages	3
Journal	Transactions - Geothermal Resources Council
Volume	29
Publication status	Published - 2005
Event	Geothermal Resources Council 2005 Annual Meeting - Reno, NV, United States Duration: Sept 25 2005 → Sept 28 2005

All Science Journal Classification (ASJC) codes

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

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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

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.",

author = "Tatsuto Iwanaga and Eiki Watanabe and Kazuo Hirowatari and Masao Yamauchi and Ryuichi Itoi and Eddy, {Sanchez R.} and Alejandro, {Rodriguez B.}",

year = "2005",

language = "English",

volume = "29",

pages = "693--695",

journal = "Transactions - Geothermal Resources Council",

issn = "0193-5933",

publisher = "Geothermal Resources Council",

note = "Geothermal Resources Council 2005 Annual Meeting ; Conference date: 25-09-2005 Through 28-09-2005",

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T1 - Field experiment of pH adjustment for acid geothermal fluids in Miravalles, Costa Rica

AU - Iwanaga, Tatsuto

AU - Watanabe, Eiki

AU - Hirowatari, Kazuo

AU - Yamauchi, Masao

AU - Itoi, Ryuichi

AU - Eddy, Sanchez R.

AU - Alejandro, Rodriguez B.

PY - 2005

Y1 - 2005

N2 - 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.

AB - 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.

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UR - http://www.scopus.com/inward/citedby.url?scp=33745206297&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:33745206297

SN - 0193-5933

VL - 29

SP - 693

EP - 695

JO - Transactions - Geothermal Resources Council

JF - Transactions - Geothermal Resources Council

T2 - Geothermal Resources Council 2005 Annual Meeting

Y2 - 25 September 2005 through 28 September 2005

ER -

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

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

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