Abstract
二酸化炭素地中貯留実証実験での油層工学的諸物性の測定と評価
Measurement and Evaluation of Several Properties for Reservoir Engineering in a Pilot CO2 injection Area
資源と素材, 124, 61-67, 2008.
君島 晋, 佐藤 章吾
Pilot test of carbon dioxide (CO2) injection into a saline aquifer has
been conducted under cooperation of Research Institute of Innovative Technology
for the Earth (RITE) and Engineering Advancement Association of Japan (ENAA)
in Nagaoka-City, 200km north of Tokyo. One injection well and three observation
wells were drilled in the site. Totally 10405 ton of CO2 was injected into
the aquifer. In order to grasp the movement of CO2 and to evaluate properties
of the aquifer for simulation study, several kinds of well tests have been
carried. Tests include three water production tests and two step rate tests
for the purpose of evaluation of permeability of the aquifer and injectivity
of the injection well, spinner survey in order to investigate injection
profile of the perforated interval of the injection well and formation
fluid sampling and their analysis so as to see fluid distribution in the
formation behind the observation well. With these tests, CO2 movement was
clearly understood and several formation properties were quantified and
introduced to the simulation model.
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