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塔河油田托甫台区奥陶系碳酸盐岩储集体地质特征研究 被引量:9

Study on geological features of Tuoputai area Ordovician carbonate rock reservoir body in Taha oilfield
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摘要 以实钻地质录井资料为基础,结合测井、生产测试等资料,对塔河油田托甫台区奥陶系碳酸盐岩储集体进行了认真细致的研究。研究表明该区奥陶系碳酸盐岩储集空间形态多样,有效储集空间以构造缝和溶蚀孔、洞、缝等次生孔隙为主;储层非均质性强,受断裂控制作用明显,横向上多分布于北部、中部断裂带附近,纵向上以中奥陶统顶之下0~60m最好。储层的主要孔隙空间为粒间溶孔、粒内溶孔、铸模孔和裂缝。综合考虑不同类型的组合关系,将储集空间结构类型划分为3种。由于碳酸盐岩储层基质孔隙度、渗透率相对低,很难构成有效的储集空间,因此区内储层整体发育程度不高,且分布不均。 Based on the geological mud logging data,combined with logging,production testing and other materials,the Tuoputai area Ordovician carbonate rock reservoir body in Taha oilfield has been carefully studied.The research indicates that the reservoir space is various,the effective reservoir space is mainly structural seam,and secondary pore as dissolution pore,hole and seam.Reservoir heterogeneity is strong,influenced by fracture obviously,horizontally distributed in north,middle part of fault zone,vertically distributed under Ordovician 0~60 m.The main porous space of reservoir is intergranular dissolution pore,intra granular dissolution pore,casts pore and the fracture.Considering the various types combination,the reservoir space structure type is divided into 3 kinds.The carbonate rocks reservoir matrix porosity and the permeability are relatively low,very difficult to constitute the effective reservoir space,therefore the whole growth degree of study area is not high,and it is distributed unevenly.
作者 段艳秋
出处 《石油地质与工程》 CAS 2011年第5期13-17,4,共5页 Petroleum Geology and Engineering
关键词 塔河油田 托甫台 奥陶系 碳酸盐岩 储集体 Tahe oilfield Tuoputai Ordovician carbonate rock reservoir body
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