阿姆河盆地奥贾尔雷地区牛津阶碳酸盐岩储层特征
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摘要
以岩心观察和薄片鉴定为基础,综合利用测井、地震和物性分析等资料,探讨了阿姆河盆地奥贾尔雷地区牛津阶碳酸盐岩储层特征。奥贾尔雷牛津阶属于台地相沉积,可划分为台地前缘缓斜坡沉积亚相和生屑滩、鲕粒滩等若干微相;牛津阶储集岩类主要为颗粒灰岩,储集空间主要为粒间溶孔和粒内溶孔;压实作用、压溶作用和胶结作用是破坏储层储集性能的主要因素,而溶蚀和破裂作用是提高和改善储层储集性能的重要因素,生屑滩和鲕粒滩为最有利储层发育的沉积微相,是主要的勘探开发目标。
According to the core description,analysis of thin section,and based on the well drilling,seismic and physical property,characteristics of carbonate reservoir in Oxfordian of Odjarly are researched.Oxfordian of Odjarly belongs to platform facies,which can be divided into platform slope subfacies,including particle bank,oolite bank and other microfacies.The reservoir lithology in Oxfordian is mainly grain limestone,and the intergranular pores and intragranular pores are mainly reservoir space.The most important elements of destroying reservoir are compaction,pressure solution and cementation.On the other hand,dissolution and fracturing play important roles in improving the reservoir porosity.The conclusion is that particle bank and oolite bank are the beneficial microfacies for reservoir development,and the principal exploration goals.
According to the core description,analysis of thin section,and based on the well drilling,seismic and physical property,characteristics of carbonate reservoir in Oxfordian of Odjarly are researched.Oxfordian of Odjarly belongs to platform facies,which can be divided into platform slope subfacies,including particle bank,oolite bank and other microfacies.The reservoir lithology in Oxfordian is mainly grain limestone,and the intergranular pores and intragranular pores are mainly reservoir space.The most important elements of destroying reservoir are compaction,pressure solution and cementation.On the other hand,dissolution and fracturing play important roles in improving the reservoir porosity.The conclusion is that particle bank and oolite bank are the beneficial microfacies for reservoir development,and the principal exploration goals.
引文
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[4]顾家裕,马锋,季丽丹.碳酸盐岩台地类型、特征及主控因素[J].古地理学报,2009,11(1):21-27.
[5]曾允孚,夏文杰.沉积岩石学[M].北京:地质出版社,1986:165-170.
[6]董霞,郑荣才,吴蕾,等.土库曼斯坦萨曼杰佩气田储层成岩作用与孔隙演化[J].岩性油气藏,2010,22(2):54-61.
[7]郑荣才,赵灿,刘合年,等.阿姆河盆地卡洛夫-牛津阶碳酸盐岩阴极发光性及其研究意义[J].成都理工大学学报:自然科学版,2010,37(4):377-385.
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