摘要
缝洞型碳酸盐岩储集体非均质性强,储集结构、连通性复杂。以塔河油田S86条带为例,基于地震、地质、测井、测试等资料,通过纵向上岩溶精细分带,建立构造模型。据不同岩溶带的岩溶特征建立岩溶发育有利区域模型,利用多级相控思路,以岩溶有利区域模型为约束条件,建立溶洞模型,其中溶洞分为充填洞、半充填洞、未充填洞3类。分别采用蚂蚁追踪、随机模拟方法建立大尺度和小尺度裂缝模型,最后融合溶洞裂缝模型,建立综合的地质模型。
Paleokarst cave reservoir is a kind of special reservoir by karstification, and it possesses complex develop-ment characteristic and extremely strong heterogeneity. Taking the S86 region in Tahe oilfield as an example, the model is created by integral construction researching of seismic, geology, logging etc, and vertical karst zoning. Based upon the different characteristic of every karst zone, cave beneficial development model is created as constraint condition to create cave model by the multilevel facies conditioning method. Then large scale fracture network is created by ant tracking method, and small scale discrete fracture network is created by stochastic method. The finally geological mod-el is created by combining cave model and fracture network.
出处
《新疆地质》
CAS
CSCD
北大核心
2013年第B12期100-106,共7页
Xinjiang Geology
