Tracer testing in geothermal reservoirs - PetroWiki


Tracers are used in geothermal reservoir engineering to determine the connectivity between injection and production wells. Because injected fluids are much cooler than in-situ fluids, knowledge of injectate flow paths helps mitigate premature thermal breakthrough. As in other applications of tracer testing, the goal of the tracer test is to estimate sweep efficiency of a given injection pattern.[1] Because geothermal systems tend to be open, tracer tests can also be used to estimate the extent of recharge/discharge or total pore volume.[2][3] Currently, however, the primary use of geothermal tracers is to estimate the degree of connectivity between injectors and producers.

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