石油实验地质Issue(1)：39-45,7.DOI:10.11781/sysydz201401039
济阳坳陷青东凹陷油藏特征及分布规律
Characteristics and distribution of reservoirs in Qingdong Sag, Jiyang Depression
摘要
Abstract
Locating in the Jiyang Depression, the Qingdong Sag, with low exploration degree, is a recent explo-ration focus. Reservoir characteristics and distribution regularities were studied based on geological, seismic and chemical data. The results showed that, 3 types of crude oils developed in the study area, including salty low-mature, salty mature and normal-mature ones. The salty low-mature and salty mature crude oils both originated from source rocks in the 4th member of the Shahejie Formation, and the normal-mature crude oils originated from source rocks in the 3rd member of the Shahejie Formation. The process of petroleum accumulation was divided in-to 2 major phases:the first one at the end of Guantao and the second one from Minghuazhen to Quaternary. Dur-ing the second phase, hydrocarbon charging was widespread, and it was the main phase for accumulation. 4 types of reservoirs generated in the Qingdong Sag, including structural, stratigraphic, lithologic and composite ones. Vertically, oil and gas mainly distributed in the upper section of the 4th member of the Shahejie Formation. On plane chart, oil and gas are abundant in the northeastern strike-slip fault zone, the northwestern slope belt, the central horst belt and the Qingdong-Qingnan transition belt, among which the northwestern slope belt was regar-ded as the key target for future exploration.关键词
油源对比/成藏期次/油藏类型/分布规律/青东凹陷/济阳坳陷Key words
oil and source correlation/accumulation period/reservoir type/distribution rule/Qingdong Sag/Jiyang Depression分类
能源科技引用本文复制引用
马立驰..济阳坳陷青东凹陷油藏特征及分布规律[J].石油实验地质,2014,(1):39-45,7.基金项目
国家科技重大专项“渤海湾盆地精细勘探关键技术”（2011ZX05006）资助。 （）
