石油实验地质2011,Vol.33Issue(2):165-170,6.
松辽盆地安达地区石油地质特征及勘探方向分析
Petroleum geologic features and exploration targets in Anda region, Songliao Basin
摘要
Abstract
Based on geologic, drilling, seismic and geochemical data, it was analyzed in this paper the tectonic evolution, source rock, sediment, reservoir- cap combination, oil- water relationship as well as accumulation type and characteristics in Anda region. Petroleum geologic features in the region were concluded as follows.Organic matter abundance of source rock is high, favorable for hydrocarbon generation and migration. Physical properties of sandbody reservoir in distributary channel are good, providing room for hydrocarbon accumulation.The favorable combination of reservoir and cap rock helps hydrocarbon accumulation and preservation. Fracture which leads to source rock works as pathway for hydrocarbon migration. Overpressure in mudstone in the 1 st member of the Qingshankou Formation drives hydrocarbon to migrate. In the study area, water locates at the bottom and oil locates at the top. Reservoirs are mainly fault-lithology and lithology-tectonic ones. The Fuyu oil layer in the region is controlled by mature source rock, overpressure in the 1st member of the Qingshankou Formation, favorable migration pathway and reserve condition. Further exploration target in the region was pointed out.关键词
石油地质特征/油气成藏/主控因素/勘探方向/安达地区/松辽盆地Key words
petroleum geologic characteristics/ hydrocarbon accumulation/ main controlling factor/ exploration target/ Anda region/ Songliao Basin分类
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赵波..松辽盆地安达地区石油地质特征及勘探方向分析[J].石油实验地质,2011,33(2):165-170,6.基金项目
国家重点基础研究发展计划"973计划"项目(2009CB219300)资助. (2009CB219300)