Underground reconnaissance and environmental monitoring related to geologic CO2 sequestration studies at the DUSEL Facility, Homestake Mine, South Dakota

Dobson, Patrick F. ; Salve, Rohit

关键词: 54;    58;    BOREHOLES;    CARBON SEQUESTRATION;    DATA;    DESIGN;    ENGINEERING;    HOST;    HUMIDITY;    LENGTH;    MONITORING;    POTENTIALS;    PRESSURE VESSELS;    REVIEWS;    SOUTH DAKOTA;    UNDERGROUND;    VARIATIONS;    VENTILATION;    WATER;    WATER REMOVAL;    WEATHER;    WORK;   

DOI  :  10.2172/979810
RP-ID  :  LBNL-2858E
PID  :  OSTI ID: 979810
Others  :  TRN: US201012%%1160

美国|英语

来源: SciTech Connect

【 摘 要 】

Underground field reconnaissance was carried out in the Deep Underground Science and Engineering Laboratory (DUSEL) to identify potential locations for the planned geologic carbon sequestration experimental facility known as DUSEL CO{sub 2}. In addition, instrumentation for continuous environmental monitoring of temperature, pressure, and relative humidity was installed at various locations within the Homestake mine. The motivation for this work is the need to locate and design the DUSEL CO{sub 2} facility currently being planned to host CO{sub 2} and water flow and reaction experiments in long column pressure vessels over large vertical length scales. Review of existing geologic data and reconnaissance underground revealed numerous potential locations for vertical experimental flow columns, with limitations of existing vertical boreholes arising from limited vertical extent, poor continuity between drifts, and small diameter. Results from environmental monitoring over 46 days reveal spatial and temporal variations related to ventilation, weather, and ongoing dewatering of the mine.