Rock-water interactions in hot dry rock geothermal systems: field investigations of in situ geochemical behavior

Grigsby, Charles O.; Tester, Jefferson W.; Trujillo, P.E.; Counce, D.; Abbott, James; Holley, C.E.; Blatz, L. A.

doi:10.1016/0377-0273(83)90097-5

Cited by 28 publications

(10 citation statements)

References 10 publications

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“…Geothermal research on Hot Dry Rocks (HDR) has also led to the investigation of subsurface rock properties (Aquilina et al, 1997b;Edmunds et al, 1984Edmunds et al, , 1985Grigsby et al, 1983Grigsby et al, , 1989. Soultz-sous-Forêts (Rhine Graben, France; Fig.…”

Section: Introductionmentioning

confidence: 98%

Porosity and fluid velocities in the upper continental crust (2 to 4 km) inferred from injection tests at the Soultz-sous-Forêts geothermal site

Aquilina

Dreuzy

Bour

et al. 2004

Geochimica et Cosmochimica Acta

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Section: Introductionmentioning

confidence: 98%

Porosity and fluid velocities in the upper continental crust (2 to 4 km) inferred from injection tests at the Soultz-sous-Forêts geothermal site

Aquilina

Dreuzy

Bour

et al. 2004

Geochimica et Cosmochimica Acta

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“…Table 10 shows the typical ion concentrations in production fluids in the ICFT system at Fenton Hill. Grigsby et al (1983) found that the two primary causes of dissolved species were displacement of downhole pore fluids and dissolution of minerals. Current thinking suggests a continuous extraction of original pore fluid from the fractured rock mass over a long period of time.…”

Section: Fig 14 T H E M 1 Production During the Icft Estimated Usinmentioning

confidence: 99%

Surface water supply for the Clearlake, California Hot Dry Rock Geothermal Project

Jäger¹

1996

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“…reservoir consisted of three stimulation experiments conducted in EE-2, Expts. 2018, 2020, and 2032(the 1983, that initially created the system and two stimulation experiments during EE-3A redrilling operations, Expts. 2059 and 2062, that resulted in successful fracture connections.…”

Section: B Objectivesmentioning

confidence: 99%

“…Throughout most of the flow test, the downhole, injection, and 1) displacement of the downhole fluid by -66-makeup fluids were all at similar concentrations (approximately those listed in Table V-I). However, early in the test the inlet and outlet concentrations were different and can be interpreted most effectively by defining a nondimensional concentration C* (Grigsby, 1983): where C,,, is the injection concentration and Co is the initial produced fluid concentration, which is the true downhole concentration of the component if the sample is collected immediately after the wellbore fluid is displaced. in Appendix D.) nonadsorbing species, which behaves like a tracer for a negative step change in injection concentration.…”

Section: --mentioning

confidence: 99%

ICFT: An initial closed-loop flow test of the Fenton Hill Phase II HDR reservoir

Dash¹,

Aguilar²,

Dennis³

et al. 1989

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A 30-day closed-loop circulation test of the Phase I1 Hot Dry Rock reservoir at Fenton Hill, New Mexico, was conducted to determine the thermal, hydraulic, chemical, and seismic characteristics of the reservoir in preparation for a long-term energy-extraction test. loop was3successfully tested with the injection of3 37 000 m of cold water and production of 23 300 m of hot water. Up to 10 MW, was extracteg when the production flow rate reached 0.0139 m /s at 192OC. By the end of the test, the water-loss rate had decreased to 26% and a significant portion of the injected water was recovered; 20% during subsequent venting. hydraulic, geochemical, tracer, and seismic data suggests the fractured volume of the reservoir was growing throughout the test. The Phase I1 heat-extraction 66% during the test and an additional Analysis of thermal, SUMMARY The Initial Closed-Loop Flow Test (ICFT), Experiment 2067, was The ICFT designed as a precursor to a long-term energy-extraction experiment in the Phase I1 Hot Dry Rock (HDR) reservoir at Fenton Hill. successfully evaluated the Phase I1 heat-extraction loop from May 19 through June 18, 1986. EE-3A and hot water was produced at EE-2, cooled, and reinjected (Hendron, 1987).

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Rock-water interactions in hot dry rock geothermal systems: field investigations of in situ geochemical behavior

Cited by 28 publications

References 10 publications

Porosity and fluid velocities in the upper continental crust (2 to 4 km) inferred from injection tests at the Soultz-sous-Forêts geothermal site

Porosity and fluid velocities in the upper continental crust (2 to 4 km) inferred from injection tests at the Soultz-sous-Forêts geothermal site

Surface water supply for the Clearlake, California Hot Dry Rock Geothermal Project

ICFT: An initial closed-loop flow test of the Fenton Hill Phase II HDR reservoir

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