Reinjection testing at Broadlands

Conference · Mon Jan 01 04:00:00 EST 1979

OSTI ID:7369321

Bixley, P F ^[1]; Grant, M A; Ramey, Jr, H J; Kruger, P ^[2]

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1. Ministry of Works and Development, Wairakei, New Zealand
2. eds.

Testing of various systems has been underway at Broadlands since 1974, and allied silica deposition investigations have been continuing at Wairakei and Broadlands since 1971. To date, three major tests have been done: BR7, 3 years injecting separated and cooled water at approximately 120/sup 0/C and 26 t/h; BR33, 6 months injecting both chemically treated and untreated water after flashing to atmospheric pressure, at a rate of 170 t/h; and BR34, 2 months injecting water flashed to atmospheric pressure, but not exposed to the atmosphere, at a rate of 210 t/h. Recent short term tests at BR13 and 23 have provided more data on permeability changes while injecting geothermal water. In all tests water supersaturated with silica has been injected, and in only one case was any detrimental effect in the injection formation detected. In one other case there was no measurable change in permeability of the injection formation and in the remaining tests, pressure transient analysis has shown an increasing permeability with time.

• OSTI ID: 7369321
• Report Number(s): SGP-TR-40; CONF-791235-
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150600 -- Geothermal Energy-- Environmental Aspects
150904* -- Geothermal Engineering-- Geothermal Reservoir & Well Performance
BROADLANDS GEOTHERMAL FIELD
CHALCOGENIDES
FLUID INJECTION
FLUIDS
GEOTHERMAL FIELDS
GEOTHERMAL FLUIDS
GEOTHERMAL WELLS
Geothermal Legacy
INJECTION WELLS
MINERALS
OXIDES
OXYGEN COMPOUNDS
PERMEABILITY
REINJECTION
SILICA
SILICON COMPOUNDS
SILICON OXIDES
TESTING
WAIRAKEI GEOTHERMAL FIELD
WELLS