摘要
肯基亚克油田位于哈萨克斯坦滨里海盆地的东缘 ,该油田石炭系油藏是一个以裂缝、溶洞为主的碳酸盐岩油藏 ,储层划分为三类 :裂缝 -孔隙 -孔洞型储层 ( 类 )、孔隙 -孔洞型储层 ( 类 )、微裂缝型储层 ( 类 )。由于碳酸盐岩储层裂缝、溶洞发育的特殊性 ,长期以来如何建立裂缝、溶洞储层地质模型一直都是较为关注的难题。此次通过利用储层的沉积分布特征 ,确定地质模型的框架 ;对岩心数据进行分析 ,认为不同的孔隙度范围内都有微裂缝存在 ;对测井数据进行分析 ,发现裂缝、溶洞出现时显示出较低密度或高孔隙度 ,因此利用密度孔隙度和基岩孔隙度做裂缝和溶洞的定性描述。在对井间储层预测时 ,根据不同类型的储层应选取了不同变程 ,这样确保了不同类储层预测的精度。分析认为利用密度孔隙度、钻速。
field is located in the esatern of Binlihai in Kazakest. Carboniferous reservoir is featured with fractured and caved zones. There are three sort of reservoir: fracture-pore-cave(Ⅰ),proe-cave(Ⅱ),micro-fracture(Ⅲ). How to build a fractured and caved reserivoir is a difficultly problem for long time. In this study structure model are bulit according sedimentary character of reservoir. there are micro-fracture in all range of porosity by analyzing log data. Lower density and higher porosity are well responsive to fracture and caves; Therefore, density porosity and core porosity can be used to describe fracture and caves qualitatively. Different variogram are used in different reservoir. The study demonstrates density curves, rate of penetration, core porosity and permeability can be used effectively to build carbonate model.
出处
《内蒙古石油化工》
CAS
2002年第2期165-167,173,共4页
Inner Mongolia Petrochemical Industry
