滨里海盆地F区块盐下深层碳酸盐岩相控储层预测
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摘要
滨里海盆地F区块石炭系杜内阶C1t储层埋藏深,受盐岩遮挡影响地震资料质量差,地震资料分辨能力和成像品质低,储层预测精度低,地震属性分析存在多解性,常规储层及含油气预测难度大,制约着勘探的进展。应用相控储层预测技术,通过地震相、测井相、岩相等综合分析,确定了研究区发育3种沉积相(开阔台地相、台地边缘相和台盆相),与地震属性分析建立联系并对其约束,挑选出与研究目标关系最密切、反映最敏感的振幅属性进行储层预测,预测出2个储层发育区。钻探实践表明,相控基础上的储层预测结果与实钻吻合率100%,实现了对复杂地质体的准确预测和描述。
Carboniferous Tournaisian C1t reservoir of F block in the Caspian Basin,deeply buried under gypsiferous rock,which seriouslyaffects the quality of seismic data,is difficult to be predicted by conventional methods with unfavorable factors of low seismic resolution and imaging quality,restricting the progress of the exploration.By the application of facies-constrained reservoir prediction technology,3 sedimentary facies were confirmed according to integrated analysis of seismic facies,logging facies and core data.Under the control of sedimentary facies,2favorable reservoir zones were predicted by amplitude which is the most sensitive attribute for reservoir prediction.Application in favorable reservoir zone Ishows that 100% of the facies-constrained reservoir prediction matches the realdrilling results.Therefore,under the constraints of sedimentary microfacies and sedimentary characteristics,seismic attributionscan be used to accurately predict and characterize complex reservoirs.
Carboniferous Tournaisian C1t reservoir of F block in the Caspian Basin,deeply buried under gypsiferous rock,which seriouslyaffects the quality of seismic data,is difficult to be predicted by conventional methods with unfavorable factors of low seismic resolution and imaging quality,restricting the progress of the exploration.By the application of facies-constrained reservoir prediction technology,3 sedimentary facies were confirmed according to integrated analysis of seismic facies,logging facies and core data.Under the control of sedimentary facies,2favorable reservoir zones were predicted by amplitude which is the most sensitive attribute for reservoir prediction.Application in favorable reservoir zone Ishows that 100% of the facies-constrained reservoir prediction matches the realdrilling results.Therefore,under the constraints of sedimentary microfacies and sedimentary characteristics,seismic attributionscan be used to accurately predict and characterize complex reservoirs.
引文
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[2]谯述蓉,张虹,赵爽.川西DY地区须家河组致密砂岩储层预测技术及应用效果分析[J].石油与天然气地质,2008,79(6):774-780.
[3]许杰,何治亮,董宁,等.鄂尔多斯大牛地气田盒3段河道砂岩相控储层预测[J].石油与天然气地质,2009,30(5):692-696.
[4]张恒,孙海龙.相控模式下的储层预测方法与应用[J].油气地质与采收率,2010,17(2):59-63.
[5]赵军.地震属性技术在沉积相研究中的应用[J].石油物探,2004,S1:67-69.
[6]江青春,王海,李丹.地震波形分类技术应用条件及其在葡北地区沉积微相研究中的应用[J].石油与天然气地质,2012,33(1):135-140.
[7]邓传伟,李莉华,金银姬,等.波形分类技术在储层沉积微相预测中的应用[J].石油物探,2010,47(3):262-265.
[8]罗红梅.地震属性技术在现河地区滑塌浊积岩油藏勘探的应用[J].工程地球物理学报,2005,2(3):224-227.
[9]曹健,赵宪生,施泽进.振幅、频率与动态吸收系数在嘉一段储层预测中的应用[J].特种油气藏,2010,17(6):35-37.
[10]徐胜峰,刘春园,季玉新,等.分频技术在塔河油田石炭系薄储层预测中的应用[J].石油天然气学报,2011,122(2):65-69.
[11]杨立强,邬长武,王箭波,等.基于小波变换的分频技术在碳酸盐岩储层预测中的应用[J].物探化探计算技术,2012,34(3):253-257.
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