塔中Ⅰ号断裂带奥陶系良里塔格组礁滩储集体模式与预测
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摘要
塔里木盆地奥陶系良里塔格组礁滩储集体位于塔里木盆地塔中Ⅰ号断裂带的东部。研究目的层良里塔格组,由下部泥灰岩段、中部颗粒灰岩段和上部泥灰岩段组成。礁滩储集体主要发育在良里塔格组9个准层序中的PS7和PS8准层序组。从岩心观察入手,建立了良里塔格组礁滩体的地质模式,在此基础上,通过对已知礁滩体测井响应和地震反射特征分析并结合地震特征属性建立了地震识别模式。利用该模式预测研究区礁滩储集体有利分布区,预测结果为近年钻探的塔中821井等井所证实,获得高产油流,说明建立起来的地质—地球物理综合模式符合客观实际,能有效地指导勘探。
A great progress of petroleum exploration has been made and commercial oil flows have been obtained in upper Ordovician Lianglitage reef-shoal reservoir along the eastern part of Fault Belt-Ⅰin Tazhong area recent years,which indicates that Lianglitage Formation is of a great commercial value of petroleum exploration. Lianglitage Formation consists of marl member in the lower,grain limestone member in the middle and marl member in the upper. Based on observation of well cores and field crops,a geological model of Lianglitage reef-shoal reservoir is built. A seismic recognition model is set up according to logging characteristics and seismic reflection of the reef-shoal. The result of prediction to favorable areas of reef-shoal reservoir with the model has proved by drillings in recent years. It is suggested that this geologic-geophysical model is fitted with the practice and can be used to guide petroleum exploration in this area.
A great progress of petroleum exploration has been made and commercial oil flows have been obtained in upper Ordovician Lianglitage reef-shoal reservoir along the eastern part of Fault Belt-Ⅰin Tazhong area recent years,which indicates that Lianglitage Formation is of a great commercial value of petroleum exploration. Lianglitage Formation consists of marl member in the lower,grain limestone member in the middle and marl member in the upper. Based on observation of well cores and field crops,a geological model of Lianglitage reef-shoal reservoir is built. A seismic recognition model is set up according to logging characteristics and seismic reflection of the reef-shoal. The result of prediction to favorable areas of reef-shoal reservoir with the model has proved by drillings in recent years. It is suggested that this geologic-geophysical model is fitted with the practice and can be used to guide petroleum exploration in this area.
引文
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[2]张宗命,吕炳全,曹统仁,等.塔里木盆地中央隆起的构造特征与演化[M]//童晓光,梁狄刚,贾承造.塔里木盆地石油地质研究新进展.北京:科学出版社,1996:110-118.
[3]贾承造.中国塔里木盆地构造特征与油气[M].北京:石油工业出版社,1997.
[4]贾承造.塔里木盆地构造特征与油气聚集规律[J].新疆石油地质,1999,20(3):177-183.
[5]张振生,李明杰,刘社平.塔中低凸起的形成和演化[J].石油勘探与开发,2002,29(1):28-31.
[6]杨海军,刘胜,李宇平,等.塔中地区中-上奥陶统碳酸盐岩储集层特征分析[J].海相油气地质,2000,5(1-2):73-83.
[7]陈景山,王振宇,代宗仰,等.塔中地区中上奥陶统台地镶边体系分析[J].古地理学报,1999,1(2):8-17.
[8]李宇平,李新生,周翼,等.塔中地区中、上奥陶统沉积特征及沉积演化史[J].新疆石油地质,2000,21(3):204-207.
[9]魏国齐,贾承造,宋惠珍,等.塔里木盆地塔中地区奥陶系构造—沉积模式与碳酸盐岩裂缝储层预测[J].沉积学报,2000.18(3):408-413.
[10]谢晓安,吴奇之,卢华复.塔里木盆地古生代构造格架与沉积特征[J].沉积学报,1997,15(1):152-155.
[11]张传禄,韩宇春,罗平,等.塔中地区中及上奥陶统沉积相[J].古地理学报,2001,3(1):35-44.
[12]王振宇,李宇平,陈景山,等.塔中地区中—晚奥陶世碳酸盐陆棚边缘大气成岩透镜体的发育特征[J].地质科学,2002,37(增刊):152-160.
[13]任兴国,姚声贤,罗利,等.川东生物礁测井响应及判别模式[J].测井技术,1999,23(3):190-197.
[14]温志峰,钟建华,王芳,等.柴西生物礁储集层的测井响应特征与最优判别[J].新疆石油地质,2005,26(1):16-20.
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