胜坨地区油气运移特征研究

Characteristics of Hydrocarbon Migration in Shengtuo Area

胜坨地区主干边界断层及调节断层相对陡倾的部位多是构造岩性圈闭相对发育的部位,相对缓倾的部位多是构造圈闭相对发育的部位,主干边界断层带走向变化的部位构造圈闭相对集中;断层、地层不整合面及砂砾岩扇体在空间上的相互配合,构成了研究区油气运移的立体通道;油气在各种动力的作用下,在输导系统的控制下,沿着优质输导系统进行运移,最终在合适的圈闭中聚集成藏。

The relatively steep slope positions in the principal boundary faults and adjustment faults are mostly the positions where lithologic structural traps are relatively grown, and relatively slow slope positions are mostly the position where structural traps are relatively grown, while the structural traps are relatively concentrated in the positions where strike changes occurs in the principal boundary faults. The main pathways for hydrocarbon migration are created in the studied area by the uncomformity of faults and formation as well as the matching of sand and shale rocks in space in Shengtuo Oilfield. Oil and gas migrate along a quality delivery system by which it is controlled. Under the action of various powers, and it is eventually accumulated and formed to a reservoir in a proper trap.