川中地区飞仙关组高能鲕滩储层地震预测
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摘要
川中地区泛开江-梁平海槽对飞仙关组沉积相的演化和鲕滩储层的分布有着明显的控制作用。鲕滩储层的发育与沉积前的古地貌密切相关,台缘高能鲕粒滩储层是飞仙组关最重要的储层,寻找有利的古地貌和高能鲕滩储层的关键是准确识别海槽边缘和飞仙关组晚期高位域的沉积特征。仅利用钻井资料与测井资料划分沉积相带,结果不准确。为此充分利用地震资料的横向连续性,采用地震相分析技术,选取关键的地震属性,利用层拉平技术,准确识别海槽边缘,划分沉积相带,寻找有利于鲕滩储层发育的台缘带。利用地震层序分析技术,纵向上分析沉积相演化过程,识别有利于鲕滩储层发育的高能沉积环境。采用地震相分析技术与地震层序分析技术相结合的方法,从空间上直观地了解不同时期古地貌的变迁情况,从区域上识别高能鲕滩储层发育的层段及所处的古地貌位置。近年来的鲕滩勘探成果表明,该方法能提高鲕滩储层的钻探成功率。
Fankaijiang-Liangping trough has obvious controlling effect on the evolution of sedimentary facies of Feixianguan Formation and the distribution of oolitic-beach reservoirs.The development of oolitic-beach reservoir in platform margin is closely related with the paleo-geomorphology before deposit.High-energy oolitic-beach reservoir is the most important one of Feixianguan Formation.The key for seeking favorable paleo-geomorphology and high-energy ooliticbeach reservoir is to accurately identify the margin of trough and the depositional characteristics of highstand system tract at the late stage of Feixianguan Formation.The classification of sedimentary facies is not accurate only by using drilling and logging data.Therefore, by the full use of the lateral continuity of seismic data,the seismic facies analysis technique was used to select key seismic attributes; then layer flattening technique was applied to accurately recognize the margin of trough and classify sedimentary facies;finally the platform margin belt beneficial for developing ooliticbeach reservoirs was identified.Meanwhile,the seismic sequence analysis technique was used to analyze the sedimentary facies evolution in longitudinal direction and the high-energy sedimentary environment beneficial for developing oolitic-beach reservoirs.The combination of seismic facies analysis technique and seismic sequence analysis technique can visually understand the change of paleo-geomorphology in different period,and recognize the regional ooliticbeach reservoir development interval and its paleo-geomorphology. The exploration achievements of oolitic-beach area in recent years indicate that the method can improve the successful ratio of drilling oolitic-beach reservoir.
Fankaijiang-Liangping trough has obvious controlling effect on the evolution of sedimentary facies of Feixianguan Formation and the distribution of oolitic-beach reservoirs.The development of oolitic-beach reservoir in platform margin is closely related with the paleo-geomorphology before deposit.High-energy oolitic-beach reservoir is the most important one of Feixianguan Formation.The key for seeking favorable paleo-geomorphology and high-energy ooliticbeach reservoir is to accurately identify the margin of trough and the depositional characteristics of highstand system tract at the late stage of Feixianguan Formation.The classification of sedimentary facies is not accurate only by using drilling and logging data.Therefore, by the full use of the lateral continuity of seismic data,the seismic facies analysis technique was used to select key seismic attributes; then layer flattening technique was applied to accurately recognize the margin of trough and classify sedimentary facies;finally the platform margin belt beneficial for developing ooliticbeach reservoirs was identified.Meanwhile,the seismic sequence analysis technique was used to analyze the sedimentary facies evolution in longitudinal direction and the high-energy sedimentary environment beneficial for developing oolitic-beach reservoirs.The combination of seismic facies analysis technique and seismic sequence analysis technique can visually understand the change of paleo-geomorphology in different period,and recognize the regional ooliticbeach reservoir development interval and its paleo-geomorphology. The exploration achievements of oolitic-beach area in recent years indicate that the method can improve the successful ratio of drilling oolitic-beach reservoir.
引文
[1]文应初,王一刚,程绪彬,等.四川地区早三叠世飞仙关期碳酸盐台地增生与有利储集相带展布[J].天然气工业,1988,8(3):357-371
[2]张延充,杨爱国,梅燕,等.泛开江-梁平海槽及勘探有利相带地震预测[J].天然气工业,2009,29(10): 28-30
[3]邓雁,张延充,李忠,等.川东下三叠统飞仙关组沉积相研究[J].勘探地球物理进展,2004,27(5): 372-375
[4]胡伟光,蒲勇,赵卓男,等.川东北元坝地区长兴组生物礁的识别[J].石油物探,2010,49(1):46-53
[5]Palaz I,Marfurt K.碳酸盐岩地震学[M].陆邦干,孟尔盛,译.北京:石油工业出版社,1998:1-425
[6]王一刚,刘划一,文应初,等.川东北飞仙关组鲕滩成层分布规律、勘探方法与远景预测[J].天然气工业, 2002,22(增刊):14-19
[7]武丽,董宁,朱生旺,等.川东北通南巴构造带飞仙关组鲕滩储层预测[J].石油物探,2009,48(3):46-53
[8]敬朋贵.川东北地区礁滩相储层预测技术与应用[J].石油物探,2007,46(4):363-369
[9]李岩峰,刘殊,曾晓.川东飞仙关组鲕滩储层地震响应特征及预测[J].石油物探,2005,44(3):236-239
[10]元军,尹兵样,徐筱兵,等.四川盆地铁山坡地区飞仙关组鲕滩储层地震预测[J].石油物探,2005,44(6): 617-620
[11]刘殊,甘其刚.碳酸盐岩沉积相分析在飞仙关组鲕滩储层中的应用[J].石油物探,2003,26(3):190-198
[12]凡睿,高林,何莉,等.川东北飞仙关组鲕滩储层地震预测[J].勘探地球物理进展,2003,26(6):199-205
[13]毕俊风.宣汉-达县地区飞仙关组孔隙型储层的预测方法[J].山东科技大学学报(自然科学版),2008,27 (30):20-26
[14]刘微,曾云贤,杨雨,等.飞仙关组鲕滩储层常规地震相识别技术探索[J].西南石油大学学报,2007,29 (1):30-33
[2]张延充,杨爱国,梅燕,等.泛开江-梁平海槽及勘探有利相带地震预测[J].天然气工业,2009,29(10): 28-30
[3]邓雁,张延充,李忠,等.川东下三叠统飞仙关组沉积相研究[J].勘探地球物理进展,2004,27(5): 372-375
[4]胡伟光,蒲勇,赵卓男,等.川东北元坝地区长兴组生物礁的识别[J].石油物探,2010,49(1):46-53
[5]Palaz I,Marfurt K.碳酸盐岩地震学[M].陆邦干,孟尔盛,译.北京:石油工业出版社,1998:1-425
[6]王一刚,刘划一,文应初,等.川东北飞仙关组鲕滩成层分布规律、勘探方法与远景预测[J].天然气工业, 2002,22(增刊):14-19
[7]武丽,董宁,朱生旺,等.川东北通南巴构造带飞仙关组鲕滩储层预测[J].石油物探,2009,48(3):46-53
[8]敬朋贵.川东北地区礁滩相储层预测技术与应用[J].石油物探,2007,46(4):363-369
[9]李岩峰,刘殊,曾晓.川东飞仙关组鲕滩储层地震响应特征及预测[J].石油物探,2005,44(3):236-239
[10]元军,尹兵样,徐筱兵,等.四川盆地铁山坡地区飞仙关组鲕滩储层地震预测[J].石油物探,2005,44(6): 617-620
[11]刘殊,甘其刚.碳酸盐岩沉积相分析在飞仙关组鲕滩储层中的应用[J].石油物探,2003,26(3):190-198
[12]凡睿,高林,何莉,等.川东北飞仙关组鲕滩储层地震预测[J].勘探地球物理进展,2003,26(6):199-205
[13]毕俊风.宣汉-达县地区飞仙关组孔隙型储层的预测方法[J].山东科技大学学报(自然科学版),2008,27 (30):20-26
[14]刘微,曾云贤,杨雨,等.飞仙关组鲕滩储层常规地震相识别技术探索[J].西南石油大学学报,2007,29 (1):30-33
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