济阳坳陷储层地震地质综合预测技术研究
|
摘要
济阳坳陷具有复杂多样的沉积体系和储集类型,形成了复杂的隐蔽油藏系统,储层预测是该坳陷油藏勘探的关键。为此,针对坳陷中4种类型的储集层:陡坡带砂砾岩扇体、洼陷带浊积砂和三角洲及前缘滑塌浊积扇、缓坡带滩坝砂、坳陷期河道砂体等,分别探讨了它们各自的预测难点,并设计了相应的综合地震地质预测技术系列,即①采用相干、地层切片、三维可视化解释、谱分解等技术对河道砂体进行浏览—精细种子点追踪解释—薄层河道砂厚度计算的河流相储层预测技术系列;②采用古地形分析、地震几何属性分析、波阻抗反演等技术进行扇体—扇体内幕—有效储层预测的陡坡带砂砾岩体描述技术系列;③采用波形分析、倾角建模反演等技术进行定区带、定砂体的洼陷带浊积砂体预测技术系列;④采用古地形、波形分析、伪熵属性、高分辨率反演等技术进行定靶区、定目标的滩坝砂岩储层预测技术系列。在胜利油田隐蔽油藏储层预测中,利用这些地震地质预测技术获得了良好效果,年增探明储量1×108t。
Jiyang Depression is a typical continental rift basin. Its revservoir has characteristics of multi-sources and lateral variation, there exist four types of reservoir: glutenite fans in steep slop region, delta front slump turbidite fans in sag region, beach bar sand bodies in gentle slop region and channel sand bodies shaped at structure depression stage. Successful reservoir prediction relies on the combination of various techniques according to the seism-geology characters of reservoir. As for reservoirs in Jiyang Depression, following integrated seism-geology prediction techniques series were designed: For fluvial facies reservoirs, adopting coherence analysis, stratigraphical slices and 3-D visualization to scan channel sand bodies, subtly interpreting sand bodies with seed point tracking, using spectrum decomposition to calculate the thickness of channel sand bodies; For glutenite fans, using palaeotopography and geometrical attribute a-nalysis to predict the fans distribution and describe their interior conditions, using impedance inversion technique to predict the effective reservoirs; For delta- front slump turbidite fans, applying waveform analysis and inversion based on the stratigraphical dip modeling to predict the distribution of the promising sand bodies; For beach bar sand bodies, choosing palaeotopography, waveform analysis, pseudo-entropy and high-resolution inversion to identify the hopeful sand bodies and farther to specify exploitation targets. Satisfied effect has been achieved by using above techniques series in subtle reservoir prediction in Shengli oil field.
Jiyang Depression is a typical continental rift basin. Its revservoir has characteristics of multi-sources and lateral variation, there exist four types of reservoir: glutenite fans in steep slop region, delta front slump turbidite fans in sag region, beach bar sand bodies in gentle slop region and channel sand bodies shaped at structure depression stage. Successful reservoir prediction relies on the combination of various techniques according to the seism-geology characters of reservoir. As for reservoirs in Jiyang Depression, following integrated seism-geology prediction techniques series were designed: For fluvial facies reservoirs, adopting coherence analysis, stratigraphical slices and 3-D visualization to scan channel sand bodies, subtly interpreting sand bodies with seed point tracking, using spectrum decomposition to calculate the thickness of channel sand bodies; For glutenite fans, using palaeotopography and geometrical attribute a-nalysis to predict the fans distribution and describe their interior conditions, using impedance inversion technique to predict the effective reservoirs; For delta- front slump turbidite fans, applying waveform analysis and inversion based on the stratigraphical dip modeling to predict the distribution of the promising sand bodies; For beach bar sand bodies, choosing palaeotopography, waveform analysis, pseudo-entropy and high-resolution inversion to identify the hopeful sand bodies and farther to specify exploitation targets. Satisfied effect has been achieved by using above techniques series in subtle reservoir prediction in Shengli oil field.
引文
1刘传虎,刘福贵．一个隐蔽油气藏的发现[J]．石油物探,1994,33(1):103-110
2张明振,谭明友,王兴谋．济阳坳陷第三系隐蔽油藏储层预测配套技术[J]．地球物理学进展．2005,20(1): 42-48
3王秉海,钱凯主编．胜利油区地质研究与探勘实践[M]．山东东营:石油大学出版社,1992．76-141
4吴崇筠,薛叔浩．中国含油气盆地沉积学[M]．北京:石油工业出版社,1992．63-101
5汪云家,王兴谋,韩文功．济阳坳陷三维地震资料中亮点气藏的特征及识别方法[J]．石油物探,1995,34(4): 66-72
6曾文冲．油气藏储集层测井评价技术[M]．北京:石油工业出版社,1991．1-10
7郑小武,袁士义,穆龙新等．基于三维场的储层预测方法及应用[J]．石油学报,2001,22(6):56-58
8姜素华,林红梅,王永诗．陡坡带砂砾岩扇体油气成藏特征[J]．石油物探,2003,42(3):313-317
9 Dorn GA,傅子云．三维地震解释中的可视化[J]．国外油气勘探,1996,8(3):347-352,376
10曹柏如,张霖斌．波阻抗反演中的不确定性分析[J]．地球物理学进展,2000,15(4):62-67
11李丕龙,庞雄奇．陆相断陷盆地隐蔽油气藏形成[M]．北京:石油工业出版社,2004:13-16
12孙锡年,刘渝,满燕．东营凹陷西部沙四段滩坝砂岩油气成藏条件[J]．国外油田工程,2003,19(7):24-25
2张明振,谭明友,王兴谋．济阳坳陷第三系隐蔽油藏储层预测配套技术[J]．地球物理学进展．2005,20(1): 42-48
3王秉海,钱凯主编．胜利油区地质研究与探勘实践[M]．山东东营:石油大学出版社,1992．76-141
4吴崇筠,薛叔浩．中国含油气盆地沉积学[M]．北京:石油工业出版社,1992．63-101
5汪云家,王兴谋,韩文功．济阳坳陷三维地震资料中亮点气藏的特征及识别方法[J]．石油物探,1995,34(4): 66-72
6曾文冲．油气藏储集层测井评价技术[M]．北京:石油工业出版社,1991．1-10
7郑小武,袁士义,穆龙新等．基于三维场的储层预测方法及应用[J]．石油学报,2001,22(6):56-58
8姜素华,林红梅,王永诗．陡坡带砂砾岩扇体油气成藏特征[J]．石油物探,2003,42(3):313-317
9 Dorn GA,傅子云．三维地震解释中的可视化[J]．国外油气勘探,1996,8(3):347-352,376
10曹柏如,张霖斌．波阻抗反演中的不确定性分析[J]．地球物理学进展,2000,15(4):62-67
11李丕龙,庞雄奇．陆相断陷盆地隐蔽油气藏形成[M]．北京:石油工业出版社,2004:13-16
12孙锡年,刘渝,满燕．东营凹陷西部沙四段滩坝砂岩油气成藏条件[J]．国外油田工程,2003,19(7):24-25
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心