Basic characteristics of oil-gas pools Of arenaceous conglometratic rocks In sha3-sha4 member of Shahejie Formation in Yan182-Yong921

摘要

By analyzing the arenaceous conglomeratic rock reservoirs in S_3-S_4 member of Shahijie Group in Dong Ying sag, we have studied the lighology, structure, reservour and so on the Yan182-Yong921 region. Research indicates: the arenaceous conglomeratic rocks of alluvial fan, fan delta and coastal subaqueous fan can be found in the studied region. Oil pools have three types: lighologic pinchout oil (gas) Pools, lithologic pools with small anticline and complex lighologic pools, among which, lithologic pools Are the major advantageous pools that can be developed profitably.