锦州南油田潜山裂缝储层地震预测技术研究-论文.pdf

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1、中国石油勘探第l9卷第1期CHINAPETROLEUMEXPLORATION2014年1月DOI：10．3969／j．issn．1672-7703．2014．01．008锦州南油田潜山裂缝储层地震预测技术研究明君夏庆龙周东红王建立(中海石油(中国)有限公司天津分公司，天津300452)摘要：锦州南油田的主要开发层系为太古宇潜山，裂缝储层预测准确性直接影响潜山油藏的开发效果。为了实现裂缝储层的准确预测，重点开展了基于海上窄方位角地震采集方式下中高角度裂缝的地震预测技术和方法研究，结合研究区域地质及构造特征，深入研究了窄方位角采集方式下裂缝发育程度与地震响应特征的定量关系，进而开展了对纵波方位各

2、向异性裂缝预测技术、远近偏移距地震差异裂缝预测技术、叠前应力场裂缝预测技术的适用性分析及预测研究，最后对3种方法预测成果进行多信息融合处理，实现了对潜山裂缝储层多方法综合预测，降低了单一方法预测的多解性，准确预测了潜山裂缝储层的发育特征，开发井证实预测吻合程度在80％以上，为油田下一步勘探开发提供依据，同时总结出一套适用于海上地震资料的裂缝预测技术序列。关键词：窄方位角；方位各向异性；应力场；裂缝检测；锦州南油田中图分类号：P631．4文献标识码：AStudyofSeismicPredictionTechnologyforBuriedHillFracturedReservoirofJinzh

3、Ounan0ilfieldMingJun，XiaQinglong，ZhouDonghong，WangJianli(CNOOC(China)LimitedEanjinCompany,Tianjin300452)Abstract：ThemainseriesofstrataofJinzhounan0ilfieldistheArcheanburiedhil1．Theaccuracyoffracturedreservoirprediction1sdirectlyrelatedtodevelopmentofburiedhilloilreservoir．Tobringaboutaccuratepredic

4、tionoffracturedreservoir．theeffortswerefocusedonseismicpredictiontechnologyandstudymethodofmedium--andhigh·anglefracturesinthepaRemofofshorenarrowazimuthangleseismicacquisition．Withcombinationofgeologicalandstructuralcharacteristicsofthestudyzone，thein—depthstudywasmadeonthequantitativerelationsbet

5、weenfracturedevelopmentdegreeandseismicresponsefeaturesinthepaaemofnarrowazimuthangleacquisition．Basedonthoseeforts，theverticalwaveazimuthanisotropyfracturepredictiontechnology,farandnearoffsetdistanceseismicanisotropyfracturepredictionandpre·stackstressfieldfracturepredictiontechnologywerebroughtu

6、nderapplicationanalysisandstudy．Finally,amagnitudeofinformationwasusedtomergeandprocesstheresultsofthreepredictionmethods，thusmakingcomprehensivepredictionofburiedhillfracturedreservoironthebasisofvariousmethods．Withthemulti—solutionpossibilityforsingle-methodpredictionreduced，thedevelopmentwellcon

7、firmedthattheconformityofpredictionexceeded80percent，providingthedataforexplorationanddevelopmentoftheoilfieldinthenextstage．Meanwhile，asetoffracturepredictiontechnologyserieswassummarizedforadoptionofoffsh