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渤中、渤东凹陷沙河街组三、四段为断陷沉积:凹陷东部断陷沉积受NE向断裂(郯庐断裂系)控制.雁行排列的NE向断裂将其分隔成3个主半地堑.凹陷西部断陷沉积受NW或近E-W向断裂控制,亦形成3个主半地堑.断陷期的沙河街组三段是凹陷的主力烃源岩,厚度可达3000m,而东营组下段生油指标达到好烃源岩标准,也是一套值得重视的烃源岩.环渤中凹陷的诸多凸起是寻找上第三系油藏的有利地区,凸起边缘和凹中隆则是寻找上第三系油藏和东营组优质油气藏的有利地区.
The third and fourth sections of the Shahejie Formation in the Bozhong and Bodong Depression are fault-subsidence sediments: the east-rift faulted depression in the depression is controlled by NE-trending faults (Tan-Lu fault system), and NE trending faults in the geese are separated into three main and semi- The depression is controlled by NW or near-EW faults, and three main and half graben are also formed.The third member of Shahejie Formation in the fault depression period is the main source rock in the depression with a thickness up to 3000m, while the Dongying Formation The lower reaches of oil indicators to achieve a good source rock standards, but also a set of source rocks worthy of attention .Bouzhongzhong depression many bumps are looking for the Tertiary reservoir of favorable areas, raised edges and concave Long Ze is Find favorable areas for the Upper Triassic reservoir and Dongying Formation high-quality reservoirs.