吴起油田长官庙油区长9探井油水层预测  

Oil-Water Reservoir Prediction of Chang 9 Exploration Well in Zhangguanmiao Oil Area of Wuqi Oilfield

作　　者：柯西勇 

机构地区：[1]桂林理工大学地球科学学院,广西 桂林

出　　处：《地球科学前沿（汉斯）》2024年第4期411-418,共8页Advances in Geosciences

摘　　要：延长组地层发育时间长,为油气资源提供了良好的生油、聚集及储存场所,但该区块储集层有很强的非均质性,物性差,地层结构复杂。长9作为含油层之一,为了更准确地探明落实该区长9含油层位和储层特点,设计最大井深2400 m的探井,依据该区一些井位的录井和测井资料,进行地层标志层对比和油水层划分,预测吴起油田长官庙油区长9油层探井,储层岩性主要是暗色泥岩、页岩夹灰色粉–细砂岩,总厚度为80~130 m;长91、长92、长93深度为2220.9~2262.2 m、2262.2~2299.9 m、2299.9~2337.8 m;出油水井段为2235~2240 m和2230~2235 m。The long development time of Yanchang Formation provides a good place for oil generation, accumulation and storage of oil and gas resources, but the reservoir in this block has strong heterogeneity, poor physical property and complex formation structure. Chang 9 is one of the oil-bearing reservoirs. In order to more accurately identify and implement the characteristics of Chang 9 oil-bearing reservoirs and reservoirs in this area, an exploration well with a maximum well depth of 2400 m was designed. Based on the logging and logging data of some well locations in this area, marker formation correlation and oil-water layer division were conducted to predict the exploration well of Chang 9 oil layer in Changmiao oil area of Wuqi Oilfield. The reservoir lithology is mainly dark mudstone, shale mixed with gray silt-fine sandstone, with a total thickness of 80~130 m;Chang 91, Chang 92, Chang 93 are 2220.9~2262.2 m, 2262.2~2299.9 m, 2299.9~2337.8 m in depth;It is predicted that the oil-well interval is 2235~2240 m and 2230~2235 m.

关 键 词：吴起油田长官庙油区 延长组 长9储层 油水层 

分 类 号：P61[天文地球—矿床学]