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90o相移技术在川东W地区茅口组储层预测中的应用
APPLICATION OF 90o-PHASE CONVERSION TECHNIQUE IN SERVIOR PREDICTION ABOUT MAOKOU FORMATION IN W AREA,SOUTHERN SICHUAN BASIN
徐姣 罗晶 张黎明 龚立
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作者单位:川庆钻探工程有限公司地球物理勘探公司
中文关键字:90o相移技术 茅口组 海相地层 道积分 地震沉积学
英文关键字:90o-phase conversion technique Maokou formation Marine facies Trace integration Seismic sedimentology
中文摘要:川东W地区多口井在茅口组具有不同程度的油气显示,且测试产能较好,以往的研究认为茅口组储层属于裂缝型,并未对白云岩发育层段的特征进行过多讨论。本文在充分分析该区茅二a亚段白云岩储层地质特征基础上,利用90º相移技术在薄地层和岩性解释上的优势,使地震反射同相轴与岩层相对应,大大提高了储层预测成果的精确度。本文立足于川东W地区近年采集的三维地震资料,从钻井资料上讨论不同角度相移对储层预测的影响,再利用地震剖面分析90º相移技术与道积分技术的差异,认为90º相移技术对该区储层具有更强更准确的解释性,对今后精细储层预测在海相地层的运用提供了极其重要的思路和依据。
英文摘要:Multi-wells of W Areas in eastern Sichuan,has different shows of gas and oil,also has a good production,previous research holds that the Maokou formation belongs to fractured reservoir without too much discussion to the characteristics of dolomite zone.Based on a full analysis of geologic characteristics of dolomite reservoir in Mao 2a sub-formation,this research uses the advantage of 90º-phase conversion technique in interpretation for the thin stratum and lithology,makes corresponding to the seismic reflection and litho,and greatly improves the precision of reservoir prediction results.using recent acquisition of 3d seismic data in W Aera,discussing different angle phase effect on reservoir prediction from drilling data,analying the differences between 90º-phase conversion technique and trace integration technique according to seismic section,this research holds that 90º-phase conversion technique has more accurate and stronger explanatory to reservoir in this aera,and provides very important idea and basis for the fine reservoir prediction in marine facies later.
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国内统一连续出版物号:CN51-1159/TE |国内发行代码: |国际标准出版物号:ISSN1673-3177 |国际发行代码:
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