Abstract:Seismic section in Linqing depression shows four major seismic horizons. The analysis of reflection characteristic and interrelations of these seismic horizons leads to the conclaasion:the depression was formed during mid Mesozoic; in Paieogene, some subdepressions and re-Levant rises were formed in the d.epressionj and in early Neogene, the depression gradually shrank to wither away. Different depositional environments in different evolution periods resulted in different source rocks respectively. The existence of these source rocks has been revealed by limited amount of drilling data, but the hydrocarbon resource in the whole depression has not been ascertained yet, The substructural units in the depression resulted from half-graben faulting, and they trend towards north by east. The local structures, being half-anticlinescaused by faulting, ruostly occur at the downthraw blocks of major faults, ranging in regular way. Most of the local structures, which were crewed in Paleogene, Iie in the east and south parts of the depression. Judging from the informations of petroleum geology and geological structure, we can infer that there are five types of major oil trap, and the east part is an important prospect.
收稿日期: 1985-12-25
引用本文:
张德林. 临清拗陷勘探方向的探讨[J]. 石油地球物理勘探, 1986, 21(5): 503-511,543.
Zhang Delin. The target of hydrocarbon exploration in Lingqing depression. OGP, 1986, 21(5): 503-511,543.