Abstract: In this paper, based on argillic-rock compaction, an analysis of primary hydrocarbon-escape depth of source bed is made. The source bed, Ek₂, to the South of Kongdian in Huanghua Depression,is the second member of Kongdian group (Paleogene). The analysis shows that the hydrocarbon-escape area of Ek₂ is enlarging along with the geological development, and that the Guantao-Lower Minghuazhen is the primary hydrocarbon-escape period. Through comparing the pressure profiles from compaction curves with known oil and gas accumulation, the close association of the latter with relatively high excess pressure can be seen. Finally, the authers also evaluate the prospect of oil finding in this area from the point of view of migration.

摘要： 从泥岩压实研究入手,分析了黄骅拗陷孔店南区孔二段(Ek₂)生油层的主要排烃深度。进而得出了孔二段排烃范围随地质时期的发展而变化,并指出了其主要排烃期属馆陶-明化镇组下段。由压实曲线转换成的压力剖面与已知油气聚集关系的对比分析表明,后者与相对高过剩压力间具有紧密的伴生关系。作者还从油气运移角度评价了本区的含油远景。