Decrease in Reservoir Permeability due to Deposition of Silica Dissolved in Geothermal Injection Water —Numerical Simulation in a Radial Flow System—

Ryuichi Itoi, Michihiro Fukuda, Kenji Jinno, Takushi Yokoyama, Kazzuo Hirowatari, Tsuneto Tomita

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

A mathematical model to simulate permeability decrease caused by the deposition of silica in a reservoir near an injection well has been developed. Isothermal and steady state water flow is assumed in the reservoir. Sensitivity study has been carried out with the model under injecting geothermal water of 90 Degree C And Of 522 Mg/l Mono-Silicic Acid At A Constant Injection Rate, 60 M3/h. Reservoir Porosity gives serious effect both on the injectivity decrease of the well and on the extention of permeability damaged area due to the silica deposition. Reservoir thickness also gives the effect on the injectivity decrease with time.

Original languageEnglish
Pages (from-to)1-19
Number of pages19
JournalJournal of the Geothermal Research Society of Japan
Volume11
Issue number1
DOIs
Publication statusPublished - Jan 1 1989

Fingerprint

water injection
radial flow
permeability
silica
silicon dioxide
simulation
injection
silicic acid
water
water flow
mathematical models
porosity
well
acids
sensitivity
effect

All Science Journal Classification (ASJC) codes

  • Geophysics

Cite this

Decrease in Reservoir Permeability due to Deposition of Silica Dissolved in Geothermal Injection Water —Numerical Simulation in a Radial Flow System—. / Itoi, Ryuichi; Fukuda, Michihiro; Jinno, Kenji; Yokoyama, Takushi; Hirowatari, Kazzuo; Tomita, Tsuneto.

In: Journal of the Geothermal Research Society of Japan, Vol. 11, No. 1, 01.01.1989, p. 1-19.

Research output: Contribution to journalArticle

Itoi, Ryuichi ; Fukuda, Michihiro ; Jinno, Kenji ; Yokoyama, Takushi ; Hirowatari, Kazzuo ; Tomita, Tsuneto. / Decrease in Reservoir Permeability due to Deposition of Silica Dissolved in Geothermal Injection Water —Numerical Simulation in a Radial Flow System—. In: Journal of the Geothermal Research Society of Japan. 1989 ; Vol. 11, No. 1. pp. 1-19.
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