桩海潜山场-势效应与油气聚集的关系
|
摘要
利用钻井、测井、三维地震及速度谱资料,分别采用有限元法、Fillippone法和Hubbert法模拟和研究了胜利油田桩海地区太古界潜山油藏应力场、压力场及流体势场的特征,并分析讨论了其与油气聚集之间的关系。研究结果表明,潜山油气藏的形成直接受地应力场、压力场、温度场及流体势场的控制和制约。表现为:现今油气的富集区基本上位于地应力场中的张应力和张扭应力分布区、整体正常压力系数分布的相对高值区和地温梯度的相对高值区。潜山油气运聚在宏观上遵循由高势区向低势区运移、聚集的规律,但在局部地区,油气的富集还与流体势场等值线的形态等因素密切相关。
The data of drilling,logging,3D seismic and velocity spectrum were used to simulate the stress field,pressure field and fluid potential field of Archaean buried hill oil pool of Zhuanghai area in Shengli Oilfield with the finite element method,Fillippone method and Hubbert method.The characteristics of dynamic fields and the relationship between dynamic fields and hydrocarbon accumulation were analyzed.It is revealed that hydrocarbon accumulation of oil pool in buried hill was controlled directly by dynamic fields.The tensile stress,higher pressure coefficient in whole normal condition and higher ground temperature gradient were responsible for abundance of hydrocarbon accumulation.In addition,oil and gas in buried hill migrated from high fluid potential zone to low potential zone and accumulated in the sealed low potential zone.The efficiencies of oil and gas migration and accumulation were influenced greatly by the shapes of contour line of fluid potential field in local area.
The data of drilling,logging,3D seismic and velocity spectrum were used to simulate the stress field,pressure field and fluid potential field of Archaean buried hill oil pool of Zhuanghai area in Shengli Oilfield with the finite element method,Fillippone method and Hubbert method.The characteristics of dynamic fields and the relationship between dynamic fields and hydrocarbon accumulation were analyzed.It is revealed that hydrocarbon accumulation of oil pool in buried hill was controlled directly by dynamic fields.The tensile stress,higher pressure coefficient in whole normal condition and higher ground temperature gradient were responsible for abundance of hydrocarbon accumulation.In addition,oil and gas in buried hill migrated from high fluid potential zone to low potential zone and accumulated in the sealed low potential zone.The efficiencies of oil and gas migration and accumulation were influenced greatly by the shapes of contour line of fluid potential field in local area.
引文
[1]佩罗东A.石油地质动力学[M].冯增模,等译.北京:石油工业出版社,1993:1-150.
[2]张厚福,方朝亮.盆地油气成藏动力学初探———21世纪油气地质勘探新理论探索[J].石油学报,2002,23(4):7-12.
[3]李丕龙,庞雄奇.陆相断陷盆地隐蔽油气藏形成———以济阳坳陷为例[M].北京:石油工业出版社,2004:182-343.
[4]吕炳全,师先进.郯庐断裂与渤海、黄海的成因联系[J].海洋学报,1986,8(2):207-214.
[5]王红罡,吕炳全,徐国强,等.胜利油田埕北30潜山裂缝系统的地应力有限元法分析[J].上海地质,2003,24(2):26-32.
[6]Fillippone W R.On the prediction of abnormally pressured sedi-mentary rocks from data[J].Offshore Technoloigy Conference,1979,3662:2667-2676.
[7]Hubbert M K.Entrapment of petroleum under hydrodynamicconditions[J].AAPG Bulletin,1953,37(8):1954-2026.
[8]England W A,Mackenzie A S,Mann D M.The movement andentrapment of petroleum fluids in the subsurface[J].Journal ofthe Geological Society,London,1987,144:327-347.
[9]Hindel A D.Petroleum migration pathways and charge concen-tration:A three-dimensional model[J].AAPG Bulletin,1997,81(9):1 451-1 481.
[10]郝芳,邹华耀,姜建群.油气成藏动力学及其研究进展[J].地学前缘,2000,7(3):11-21.
[11]郝芳,邹华耀,王敏芳,等.油气成藏机理研究进展和前沿研究领域[J].地质科技情报,2002,21(4):7-14.
①刘鸿祥,于庆云,李筱瑾,等.济阳坳陷东部潜山带含油气远景评价.中国石化胜利油田分公司地质科学研究院,2004.
①刘鸿祥,于庆云,李筱瑾,等.济阳坳陷东部潜山带含油气远景评价.中国石化胜利油田分公司地质科学研究院,2004.
[2]张厚福,方朝亮.盆地油气成藏动力学初探———21世纪油气地质勘探新理论探索[J].石油学报,2002,23(4):7-12.
[3]李丕龙,庞雄奇.陆相断陷盆地隐蔽油气藏形成———以济阳坳陷为例[M].北京:石油工业出版社,2004:182-343.
[4]吕炳全,师先进.郯庐断裂与渤海、黄海的成因联系[J].海洋学报,1986,8(2):207-214.
[5]王红罡,吕炳全,徐国强,等.胜利油田埕北30潜山裂缝系统的地应力有限元法分析[J].上海地质,2003,24(2):26-32.
[6]Fillippone W R.On the prediction of abnormally pressured sedi-mentary rocks from data[J].Offshore Technoloigy Conference,1979,3662:2667-2676.
[7]Hubbert M K.Entrapment of petroleum under hydrodynamicconditions[J].AAPG Bulletin,1953,37(8):1954-2026.
[8]England W A,Mackenzie A S,Mann D M.The movement andentrapment of petroleum fluids in the subsurface[J].Journal ofthe Geological Society,London,1987,144:327-347.
[9]Hindel A D.Petroleum migration pathways and charge concen-tration:A three-dimensional model[J].AAPG Bulletin,1997,81(9):1 451-1 481.
[10]郝芳,邹华耀,姜建群.油气成藏动力学及其研究进展[J].地学前缘,2000,7(3):11-21.
[11]郝芳,邹华耀,王敏芳,等.油气成藏机理研究进展和前沿研究领域[J].地质科技情报,2002,21(4):7-14.
①刘鸿祥,于庆云,李筱瑾,等.济阳坳陷东部潜山带含油气远景评价.中国石化胜利油田分公司地质科学研究院,2004.
①刘鸿祥,于庆云,李筱瑾,等.济阳坳陷东部潜山带含油气远景评价.中国石化胜利油田分公司地质科学研究院,2004.