Structure Study Based On The Discovery In HuoJitu Well Field

Three dimensional seismic survey was one of main physical prospecting methods in geological prospecting for well field in coal mine today. In the three dimensional seismic survey research process to HuoJitu well field in DaLiuta coal mine, it used weakness before superimposes,three dimensional after superimposes weakness followed with noises and other technics to dispose with the primary earthquake section planes, which enhancing three dimensional earthquake data body signal-to-noise ratio. Using Discovery, the Strata software carried on explanation and inversion to primary earthquake material,it interpreted accurately small geological structures from oil wells in the field,coal bed range characteristic in space and time. The paper found four faults whose dropping variance were bigger than 5m in exploration area, and its dropping variance interpretation error was smaller than 1m, plane stagger error was not bigger than 20m, which also found the depth of fold with over 10m amplitude and coal bed ledger wall in the main mining layers. Compared with convention seismic interpretation methods, it had merits such as high precision and simple operation .