A certain block of oil and gas accumulation understanding

The block is located in the southern part of an oil field. A grooved area held by three structures. blank 41.6 square kilometers. It accounts for about 20% area. faults this are more developed, mainly NNW direction, Permeability 0.7~1542mD, average 275.1mD, porosity 11.1~27.8%, 23.2%, effective thickness 2.2m, and river channel width 100-300m. three-dimensional seismic data were collected 2004, accuracy survey network was 20m×40m, number coverage times 66 times, main frequency 39-42Hz, surface element 10m×10m, finely processed explained 2008.