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辽河油田经过十余年勘探,取得了大量的深井和地震资料,经分析研究发现区内前第三系基底在东西方向上分为三块,中间存在两条断裂。本文在论述三块基底差异的基础上,提出郯庐断裂通过辽河断陷内的位置及其平移的性质。东面一条基底断裂是主干断裂,西面的是并列断裂。由于它们的存在及其活动的差异,对下第三系的油区有较明显的控制,因此造成了辽河断陷的东西凹陷的油气富集程度的差异。
After more than ten years of exploration, the Liaohe Oilfield has obtained a large amount of deep well and seismic data. According to the analysis and research, it is found that the former Tertiary basement is divided into three blocks in the east-west direction with two faults in the middle. Based on the discussion of three basement differences, this paper presents the position and translational nature of the Tan-Lu fault passing through the Liaohe Fault. A basement to the east is the main fault and the west is the parallel fault. Due to their existence and differences in their activities, there is more obvious control over the oil zone in the Lower Tertiary, thus resulting in the difference in hydrocarbon enrichment between the East and West sags in the Liaohe Fault depression.