下刚果盆地南部渐新统浊积砂岩储层含油气性检测
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摘要
下刚果盆地南部渐新统浊积水道砂岩储层埋深为1 500～2 000m,研究区水深为1 500～1 800m,深海钻探成本大,但储层埋深适中,因此需在钻探前检测储层含油气性,以降低勘探风险。分析了盆地南部的C油田和P油田渐新统储层的地球物理特征,采用AVO近、远道振幅能量差异分析技术以及叠前地震低频含油气检测技术,利用泊松比与油气藏之间的特殊关系,建立了适用于研究区的烃类检测技术。实际应用表明,该技术具有较好的实用性。
Turbidite channels developed in southern lower Congo Basin in Oligocene Epoch are buried 1500~2000 m.Water depth of our survey is 1500~1800 m.Considering the large cost of deep sea drilling and moderate buried depth of the reservoir,petrophysical analysis aimed at hydrocarbon bearing reservoir of C and P oil fields in Oligocene formation had been carried out.The relationship between Poisson's ratio and hydrocarbon reservoir was built up based on differential analysis between AVO near and far offset trace amplitude energy as well as hydrocarbon detection technique using low-frequency pre-stack seismic data.Actual application results demonstrated the effectiveness and practicability of the technology series.
Turbidite channels developed in southern lower Congo Basin in Oligocene Epoch are buried 1500~2000 m.Water depth of our survey is 1500~1800 m.Considering the large cost of deep sea drilling and moderate buried depth of the reservoir,petrophysical analysis aimed at hydrocarbon bearing reservoir of C and P oil fields in Oligocene formation had been carried out.The relationship between Poisson's ratio and hydrocarbon reservoir was built up based on differential analysis between AVO near and far offset trace amplitude energy as well as hydrocarbon detection technique using low-frequency pre-stack seismic data.Actual application results demonstrated the effectiveness and practicability of the technology series.
引文
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[3]叶泰然.基于波形的波阻抗特征识别技术在川西气田储层预测中的应用[J].石油物探,2005,44(6):632-635
[4]龚幸林,牛刚,白文成,等.叠前弹性反演在Y研究区盐下碳酸盐岩气藏预测中的应用[J].石油物探,2011,50(1):65-68
[5]谢用良.川西丰谷地区三维AVO油气检测技术应用研究[J].天然气工业,2006,26(3):46-49
[6]杨午阳,杨文采,王西文,等.综合储层预测技术在包1—庙4井区的应用[J].石油物探,2004,43(6):578-583
[7]王振升,韩国猛,付东立,等.歧口凹陷港西地区浅层气的AVO检测方法[J].地质科技情报,2011,30(1):85-89
[8]赵皓,冯全雄,黄兆林,等.基于吸收滤波与AVO技术的地震烃类检测技术[J].天然气工业,2007,27(10):46-48
[2]Shuey R T.A simplification of the Zoeppritz equa-tions[J].Geophysics,1985,50(4):609-614
[3]叶泰然.基于波形的波阻抗特征识别技术在川西气田储层预测中的应用[J].石油物探,2005,44(6):632-635
[4]龚幸林,牛刚,白文成,等.叠前弹性反演在Y研究区盐下碳酸盐岩气藏预测中的应用[J].石油物探,2011,50(1):65-68
[5]谢用良.川西丰谷地区三维AVO油气检测技术应用研究[J].天然气工业,2006,26(3):46-49
[6]杨午阳,杨文采,王西文,等.综合储层预测技术在包1—庙4井区的应用[J].石油物探,2004,43(6):578-583
[7]王振升,韩国猛,付东立,等.歧口凹陷港西地区浅层气的AVO检测方法[J].地质科技情报,2011,30(1):85-89
[8]赵皓,冯全雄,黄兆林,等.基于吸收滤波与AVO技术的地震烃类检测技术[J].天然气工业,2007,27(10):46-48
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