东营凹陷沙三段浊积岩油藏形成机制
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摘要
东营凹陷沙三段发育了大量浊积岩,构成了完整的浊积岩体系,是油气勘探的重要目标。在充分分析了东营凹陷地质背景的基础上,从岩性特征、电性特征和地震剖面特征等方面研究了东营凹陷沙三段近源深水浊积扇、滑塌浊积扇及洪水浊积扇的沉积模式,并从生储盖条件、运移通道及油气封存箱等方面探讨了浊积岩油藏的形成机制及成藏模式。研究认为东营凹陷沙三段浊积岩具有有利的生储盖条件,具备形成油藏的条件,是下一步勘探的有利目标。
There are a lot of turbidite sand Unties in the third member of Shahejie Formation in Dongying Depression. They composed of an integrated turbidity system,which was the important target of petroleum exploration. Based on the analysis of geological settings in Dongying Depression,the depositional models of turbidite fans of proximal and deep-water, fluxoturbidite and flood turbidite were researched from the points of features of lithology,electric nature and seismic cross section. The formation mechanism of the turbidite reservoir was discussed by analyzing source rock-reservoir-seal assemblage, migration pathway and abnormally pressured fluid compartment. And the hydrocarbon accumulation models of the turbidite reservoirs were built. The turbidite sand bodies in third member of Shahejie Formation in Dongying Depression have favorable condition for hydrocarbon accumulation with good source rock-reservoir-seal assemblage. And they will be the profitable exploration targets in the posterior exploration.
There are a lot of turbidite sand Unties in the third member of Shahejie Formation in Dongying Depression. They composed of an integrated turbidity system,which was the important target of petroleum exploration. Based on the analysis of geological settings in Dongying Depression,the depositional models of turbidite fans of proximal and deep-water, fluxoturbidite and flood turbidite were researched from the points of features of lithology,electric nature and seismic cross section. The formation mechanism of the turbidite reservoir was discussed by analyzing source rock-reservoir-seal assemblage, migration pathway and abnormally pressured fluid compartment. And the hydrocarbon accumulation models of the turbidite reservoirs were built. The turbidite sand bodies in third member of Shahejie Formation in Dongying Depression have favorable condition for hydrocarbon accumulation with good source rock-reservoir-seal assemblage. And they will be the profitable exploration targets in the posterior exploration.
引文
[1]付广,姜振学,李椿.压力封闭在盖层封油气中的应用[J].天然气工业,1995,15(3):12-16.
[2]胡济世.异常高压、流体压裂与油气运移[J].石油勘探与开发,1989,16(2):16-23.
[3]王宁,翟剑飞,陈宝宁.等效排烃压力及其在东营凹陷油气勘探中的应用[J].石油大学学报:自然科学版,2000,24(4):58-60.
[4]曾溅辉,郑和荣,王宁.东营凹陷岩性油气藏成藏动力学特征[J].石油与天然气地质,1998,19(4):326-329.
[5]隋风贵,赵乐强,林会喜,等.济阳坳陷第三系地层油藏形成机制与组合模式[J].油气地质与采收率,2005,12(6):1-5.
[6]Osborne M J.Mechanisms for generation overpressure in sedimen-tary basins:a revaluation[J].AAPG Bulletin,1997,81(10):1023-1041.
[7]Mctavish R A.The role of overpressure in the retardation of organic matter maturation[J].Journal of PetroleumGeology,1998,21(2):153-186.
[8]刘文汇,张殿伟,高波,等.天然气来源的多种途径及其意义[J].石油与天然气地质,2005,26(4):393-401.
[9]李丕龙,张善文,宋国奇,等.断陷盆地隐蔽油气藏形成机制———以渤海湾盆地济阳坳陷为例[J].石油实验地质,2004,26(1):3-10.
[10]高树新,任怀强,杨少春.渤海湾盆地济阳坳陷陈家庄凸起东段北斜坡油源特征及成藏分析[J].石油实验地质,2007,29(1):69-73.
[11]牟汉生,姜在兴,邱隆伟,等.东营凹陷现河地区沙三段下亚段储层成岩作用[J].油气地质与采收率,2007,14(4):50-52.
[12]胡贤根,谭明友,张明振.济阳坳陷东部走滑构造及其形成机制[J].油气地质与采收率,2007,14(5):42-45.
[2]胡济世.异常高压、流体压裂与油气运移[J].石油勘探与开发,1989,16(2):16-23.
[3]王宁,翟剑飞,陈宝宁.等效排烃压力及其在东营凹陷油气勘探中的应用[J].石油大学学报:自然科学版,2000,24(4):58-60.
[4]曾溅辉,郑和荣,王宁.东营凹陷岩性油气藏成藏动力学特征[J].石油与天然气地质,1998,19(4):326-329.
[5]隋风贵,赵乐强,林会喜,等.济阳坳陷第三系地层油藏形成机制与组合模式[J].油气地质与采收率,2005,12(6):1-5.
[6]Osborne M J.Mechanisms for generation overpressure in sedimen-tary basins:a revaluation[J].AAPG Bulletin,1997,81(10):1023-1041.
[7]Mctavish R A.The role of overpressure in the retardation of organic matter maturation[J].Journal of PetroleumGeology,1998,21(2):153-186.
[8]刘文汇,张殿伟,高波,等.天然气来源的多种途径及其意义[J].石油与天然气地质,2005,26(4):393-401.
[9]李丕龙,张善文,宋国奇,等.断陷盆地隐蔽油气藏形成机制———以渤海湾盆地济阳坳陷为例[J].石油实验地质,2004,26(1):3-10.
[10]高树新,任怀强,杨少春.渤海湾盆地济阳坳陷陈家庄凸起东段北斜坡油源特征及成藏分析[J].石油实验地质,2007,29(1):69-73.
[11]牟汉生,姜在兴,邱隆伟,等.东营凹陷现河地区沙三段下亚段储层成岩作用[J].油气地质与采收率,2007,14(4):50-52.
[12]胡贤根,谭明友,张明振.济阳坳陷东部走滑构造及其形成机制[J].油气地质与采收率,2007,14(5):42-45.
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