摘要
由于次生成岩作用,孔隙型碳酸岩油藏溶蚀孔洞发育,尺度大小不一,形态不规则,分布不连续。定量刻画溶蚀孔洞在三维空间的展布以及流体在溶蚀孔洞内的渗流特征一直是该类油藏开发的技术难题。该文以中东F油田为例,利用孔隙型碳酸岩油藏岩石类型的分类方法(Rock Typing),预测出每一类岩石类型的空间分布规律,并以此作为约束条件,预测空间每一类岩石类型的相渗曲线、毛管力和饱和度高度函数。通过这种方法建立的动态模型精度相对较高,能够较好的反应地下储层的三维空间动态特征,为油田的生产动态预测和开发方案的制定提供可靠支持。
Due to secondary diagenesis,dissolved pores are developed in pore type carbonate reservoir,which are varied in scale,irregular in shapes and discontinuous in distribution.There still are technical problems for quantitative descriptions of dissolved pores distribution in 3Dreservoir space and flow characteristics of fluid in dissolved pores.In this paper,taking F oil field of Middle East area as an example,the rock typing method was addressed and used to forecast the distribution of each rock typing in 3D space.According to 3Drock typing results,relative permeability curve,capillary pressure and water saturation height function(SHF)for each rock type can be predicted.Through this method,the established dynamical model has higher precision,and reveals the dynamical characteristics of reservoir in 3Dspace,which can be used to forecast performance and draw up development plan.
作者
徐文斌
XU Wen-bin(Sinopec International Exploration and Production Corporation,SINOPEC,Beijing 100083,China)
出处
《内蒙古石油化工》
CAS
2020年第3期109-113,共5页
Inner Mongolia Petrochemical Industry
关键词
岩石类型分类
碳酸岩油藏
动态模型
毛管力
饱和度高度函数
相渗曲线
Rock Typing
Carbonate reservoir
Dynamical model
Capillary Pressure
Saturation Height Function
Relative Permeability Curve
