Assessment of Hydrocarbon Seepage on Fort Peck Reservation, Northeast Montana: A Comparison of Surface Exploration Techniques

Monson, Lawrence M.

National Petroleum Technology Program (U.S.)

关键词: Desorption;    Hydrocarbons;    Iodine;    Soils;    Production;   

DOI  :  10.2172/800799
RP-ID  :  DOE/BC/15192-3
RP-ID  :  FG26-00BC15192
RP-ID  :  800799

美国|英语

来源: UNT Digital Library

【 摘 要 】

Surface exploration techniques have been employed in separate study areas on the Fort Peck Reservation in northeastern Montana. Anomalies associated with hydrocarbon seepage are documented in all three areas and a variety of surface exploration techniques can be compared. In a small area with established production, head gas and thermal desorption methods best match production; other methods also mapped depletion. In a moderate-size area that has prospects defined by 3D seismic data, head gas along with microbial, iodine, and Eh soil anomalies are all associated with the best hydrocarbon prospect. In a large area that contains many curvilinear patterns observed on Landsat images, results are preliminary. Reconnaissance mapping of magnetic susceptibility has identified a potential prospect; subsequent soil gas and head gas surveys suggest hydrocarbon potential.