基于频率补偿的重构反演在高含水油田中的应用
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摘要
以大庆长垣油田X区S油层研究为例,阐述了重构反演实现过程中测井曲线均一化及重构处理、地震-地质合成记录标定、小层约束低频模型等关键环节,开展了以约束稀疏脉冲确定性反演为背景的随机模拟反演。反演结果证实了密井网条件对油藏精细描述是有效果的。井震结合后河道砂体的位置多处有新的变化,反演不仅能够提高砂泥岩薄互层条件下小层、砂体的准确程度,同时进一步明确了较厚的主力油层及主力砂体接触关系,尤其是河道砂体的边界位置。重构反演对砂体边界的预测直接影响了后期剩余油挖潜和结构调整,这对日后推广地震反演识别砂体的方法和剩余油预测是非常有意义的。
S reservoir in X Area was taken for example,the key processes of logging curve homogenization inversion of the implementation process and reconfigurable processing,seismic-geological synthetic seismogram calibration,small layer constrained low-frequency model and other key points were described to carry out the sparse pulse deterministic inversion of the stochastic simulation of the background.The inversion results prove that the dense pattern is effective for detailed reservoir description.After well is combined with seismic process,position of channel sand body has greatly changed,the inversion can not only improve the accuracy of small layer,sand body on condition of thin interbed mudstone layers,but also further clarify the contact relationship between thicker main reservoirs and main sand body at the same time,especially the boundary position of the channel sand body.It is found out that the forecast of reconstruction inversion for sand border has direct effect on tapping the potential of remaining oil and structure adjustment,it is of significant for popularizing the method of identification of sand body and forecasting remaining oil with seismic inversion.
S reservoir in X Area was taken for example,the key processes of logging curve homogenization inversion of the implementation process and reconfigurable processing,seismic-geological synthetic seismogram calibration,small layer constrained low-frequency model and other key points were described to carry out the sparse pulse deterministic inversion of the stochastic simulation of the background.The inversion results prove that the dense pattern is effective for detailed reservoir description.After well is combined with seismic process,position of channel sand body has greatly changed,the inversion can not only improve the accuracy of small layer,sand body on condition of thin interbed mudstone layers,but also further clarify the contact relationship between thicker main reservoirs and main sand body at the same time,especially the boundary position of the channel sand body.It is found out that the forecast of reconstruction inversion for sand border has direct effect on tapping the potential of remaining oil and structure adjustment,it is of significant for popularizing the method of identification of sand body and forecasting remaining oil with seismic inversion.
引文
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[13]李占东,赵娜,肖佃师,等.模拟退火随机反演技术在苏德尔特油田贝14工区兴安岭群储层预测中的应用[J].资源与产业,2010,12(5):128～132.
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[15]宋考平,杨二龙,王锦梅,等.聚合物驱提高驱油效率机理及驱油效果分析[J].石油学报,2004,25(3):71～74.
[16]张继成,梁文福,赵玲,等.萨南油田特高含水期开发形势分析[J].大庆石油学院学报,2005,29(3):23～25.
[2]刘文岭.高含水油田油藏地球物理技术——中国石油物探的新领域[J].石油学报,2010,31(6):959～965.
[3]刘振武,撒利明,张昕,等.中国石油开发地震技术应用现状和未来发展建议[J].石油学报,2009,30(5):711～721.
[4]刘文岭,韩大匡,胡水清,等.高含水油田发展油藏地球物理技术的思考与实践[J].石油学报,2009,30(4):550～559.
[5]李占东,赵伟,李阳,等.开发地震反演可行性研究及应用——以大庆长垣北部油田为例[J].石油与天然气地质,2011,32(5):797～806.
[6]许运新.大庆长垣北部萨零组油气层浅层气分布特征与开发利用[J].石油勘探与开发,1990,17(4):45～54.
[7]黄伏生,李占东,卢双舫,等.宽频带重构反演在萨南油田北东一区萨尔图油层的应用[J].科学技术与工程,2010,10(35):8682～8686.
[8]段云卿,王彦春,覃天,等.储层地震反演在辽河油田大民屯凹陷的应用[J].地球科学——中国地质大学学报,2007,32(4):554～558.
[9]惠晓宇,凌云,孙德胜,等.油田开发阶段叠后地震反演影响因素研究[J].中国海上油气,2009,21(5):308～213.
[10]季玉新,刘春园,陈冬,等.分频反演方法及其在塔河A区储层预测中的应用[J].石油与天然气地质,2010,31(1):38～42.
[11]吴媚,李维新,符力耘.基于测井曲线分频分析的地震反演[J].石油地球物理勘探,2007,42(增刊):65～71.
[12]单敬福,王峰,孙海雷,等.基于地震波阻抗反演的小层砂体预测技术——在大庆油田州57水平井区块的应用[J].石油与天然气地质,2010,31(2):212～218.
[13]李占东,赵娜,肖佃师,等.模拟退火随机反演技术在苏德尔特油田贝14工区兴安岭群储层预测中的应用[J].资源与产业,2010,12(5):128～132.
[14]慎国强,孟宪军,王玉梅,等.随机地震反演方法及其在埕北35井区的应用[J].石油地球物理勘探,2004,39(1):75～81.
[15]宋考平,杨二龙,王锦梅,等.聚合物驱提高驱油效率机理及驱油效果分析[J].石油学报,2004,25(3):71～74.
[16]张继成,梁文福,赵玲,等.萨南油田特高含水期开发形势分析[J].大庆石油学院学报,2005,29(3):23～25.
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