精细波形分类法在塔河油田碳酸盐岩储层预测中的应用
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摘要
塔里木盆地塔河油田上奥陶统覆盖区碳酸盐岩缝洞型储层以其自身独有且极为复杂的空隙结构而区别于孔隙性砂岩储层,其低孔、非均质性和各向异性的三大特点给地震给储层预测带来极大的难度。探讨了利用精细波形分类法识别和预测缝洞储层的方法。介绍了该方法的基本原理和实现过程,首先分析研究区碳酸盐岩储层特征确定时窗长度的选取;然后根据产能、钻井、测井、地质等各种实际资料,结合地震波形分析和反射机理研究,总结裂缝发育层段(时窗段)的特征波形,建立储层与地震之间的响应模式,确定储层的精细分类,再根据拟合度准则进而对未知区域作储层预测,最终得到有利储层的地震反射空间展布。应用效果表明了这种方法的有效性。
The carbonate fracture-cave reservoir in the upper Ordovician area in Tahe oilfield,with the unique and complicated interspace framework,differs from porosity sandstone reservoir.The three characteristics,low porosity and heterogeneity and anisotropic,make the seismic and reservoir interpretation difficult.The method using fine waveform classification to identify and predicate fracture-cave reservoirs is discussed.The basic principle and realization process of the method are introduced.First,window length should be determined by analyzing carbonate reservoir characteristics in the research area.Second,based on the practical data of productivity,drilling,logging,geology and so on,combined seismic waveform analysis and reflection mechanism study,summing-up characteristic waveform of window length in fracture growth bed,response mode between carbonate reservoirs and seism should be established,fine reservoir classification is determined.Third,using the principle of the fitting degree predicates unknown area's reservoirs;finally,seismic reflection space distribution of the favorable reservoirs is obtained.The application effect shows the effectiveness of the method.
The carbonate fracture-cave reservoir in the upper Ordovician area in Tahe oilfield,with the unique and complicated interspace framework,differs from porosity sandstone reservoir.The three characteristics,low porosity and heterogeneity and anisotropic,make the seismic and reservoir interpretation difficult.The method using fine waveform classification to identify and predicate fracture-cave reservoirs is discussed.The basic principle and realization process of the method are introduced.First,window length should be determined by analyzing carbonate reservoir characteristics in the research area.Second,based on the practical data of productivity,drilling,logging,geology and so on,combined seismic waveform analysis and reflection mechanism study,summing-up characteristic waveform of window length in fracture growth bed,response mode between carbonate reservoirs and seism should be established,fine reservoir classification is determined.Third,using the principle of the fitting degree predicates unknown area's reservoirs;finally,seismic reflection space distribution of the favorable reservoirs is obtained.The application effect shows the effectiveness of the method.
引文
[1]王士敏,鲁新便.塔河油田碳酸盐岩储层预测技术[J].石油物探,2004,43(2):154-158.
[2]周永昌,王新维,杨国龙.塔里木盆地阿克库勒地区奥陶系碳酸盐岩成藏条件及勘探前景[J].石油与天然气地质,2000,21(2):104-109.
[3]李昌金.赤水地区碳酸盐缝洞型气藏地质模型讨论[J].贵州地质,2000,17(2):71-78.
[4]王强,牟慧蓉,刘太福.北京西山奥陶系岩溶发育特征及其成因初探[J].北京地质,1998,3:1-9.
[5]李明,李宁林,赵一民.塔里木盆地某区碳酸盐岩裂缝储层预测研究[J].石油物探,2000,39(2):24-35.
[6]谢里夫RE,吉尔达特I.P.勘探地震学[M].初英,李承楚,王宏伟,等译.北京:石油工业出版社,1999.
[7]吕景英.用波形分析法预测塔河油田碳酸盐岩储层[J].勘探地球物理进展,2004,27(2):112-116.
[8]康玉柱.塔里木盆地古生代海相油气田仁[M].武汉:中国地质大学出版社,1992.76-84.
[9]顾家裕,周兴熙,刘雯林,等.塔里木盆地轮南潜山岩熔及油气分布规律[M].北京:石油工业出版社,2001:52-71.
[10]赵力民.波形分类技术在隐蔽油藏预测中的应用[J].石油勘探与开发,2001,28(6):53-55.
[11]赵力民,彭丽萍,郎晓玲,等.利用Stratimagic波形研究冀中探区大王庄地区岩性油藏[J].石油学报,2002,23(4):33-36.
[12]陈方鸿,王树平,李志政.三维可视化地震相分析在沉积相研究中的应用[J].石油勘探与开发,2005,32(3).
[13]师永民,祁军,张成学.应用地震波形分析技术预测裂缝的方法探讨[J].石油物探,2005,44(2):128-130.
[14]张亚中,赵裕辉,鲁新便,等.频谱分解技术在塔里木盆地北部TH地区碳酸盐岩缝洞型储层预测中的应用[J].石油地球物理勘探,2006,41(增刊):16-20.
[15]温志新,王红漫,漆立新,等.塔河油田奥陶系缝洞型碳酸盐岩储层预测研究[J].地学前缘,2008,15(1):94-100.
[16]凌云研究组.基本地震属性在沉积环境解释中的应用研究[J].石油地球物理勘探,2003,38(1):642-653.
[2]周永昌,王新维,杨国龙.塔里木盆地阿克库勒地区奥陶系碳酸盐岩成藏条件及勘探前景[J].石油与天然气地质,2000,21(2):104-109.
[3]李昌金.赤水地区碳酸盐缝洞型气藏地质模型讨论[J].贵州地质,2000,17(2):71-78.
[4]王强,牟慧蓉,刘太福.北京西山奥陶系岩溶发育特征及其成因初探[J].北京地质,1998,3:1-9.
[5]李明,李宁林,赵一民.塔里木盆地某区碳酸盐岩裂缝储层预测研究[J].石油物探,2000,39(2):24-35.
[6]谢里夫RE,吉尔达特I.P.勘探地震学[M].初英,李承楚,王宏伟,等译.北京:石油工业出版社,1999.
[7]吕景英.用波形分析法预测塔河油田碳酸盐岩储层[J].勘探地球物理进展,2004,27(2):112-116.
[8]康玉柱.塔里木盆地古生代海相油气田仁[M].武汉:中国地质大学出版社,1992.76-84.
[9]顾家裕,周兴熙,刘雯林,等.塔里木盆地轮南潜山岩熔及油气分布规律[M].北京:石油工业出版社,2001:52-71.
[10]赵力民.波形分类技术在隐蔽油藏预测中的应用[J].石油勘探与开发,2001,28(6):53-55.
[11]赵力民,彭丽萍,郎晓玲,等.利用Stratimagic波形研究冀中探区大王庄地区岩性油藏[J].石油学报,2002,23(4):33-36.
[12]陈方鸿,王树平,李志政.三维可视化地震相分析在沉积相研究中的应用[J].石油勘探与开发,2005,32(3).
[13]师永民,祁军,张成学.应用地震波形分析技术预测裂缝的方法探讨[J].石油物探,2005,44(2):128-130.
[14]张亚中,赵裕辉,鲁新便,等.频谱分解技术在塔里木盆地北部TH地区碳酸盐岩缝洞型储层预测中的应用[J].石油地球物理勘探,2006,41(增刊):16-20.
[15]温志新,王红漫,漆立新,等.塔河油田奥陶系缝洞型碳酸盐岩储层预测研究[J].地学前缘,2008,15(1):94-100.
[16]凌云研究组.基本地震属性在沉积环境解释中的应用研究[J].石油地球物理勘探,2003,38(1):642-653.
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