摘要
针对常规低渗透储层孔喉半径研究过程复杂的问题,以毛管导电通道模型为基础,引入视导电通道截面积,得到了忽略岩石和油的导电性后的孔喉半径计算方法,利用测井资料中部分参数,即可计算出孔喉半径。实例计算表明:该方法得到的孔喉半径和压汞法测得结果吻合度为0.70,从地质统计角度分析具有较高的精度。依据孔喉半径将流动单元分为4类,根据研究区流动单元与产能之间的关系,针对目标油藏实际情况,制订针对性的开发方式。该研究对同类型储层开发具有指导性意义。
In order to improve the complicated process of conventional low-permeability reservoir pore-throat radius research,a sectional area of apparent conducting channel was introduced based on the capillary conducting channel model to gain the pore-throat radius calculation without considering the considering rock and oil conductivities.A part of logging parameters was used to determine the pore-throat radius.Example calculation indicates that the coincidence level of pore-throat radius between the prediction and mercury intrusion test is 0.70,which shows a high precision from the perspective of geostatistics.Based on the pore-throat radius data,the flow unit was divided into 4 categories.Specific development patterns were developed for the target reservoirs according to the relationship between the flow unit and productivity in this region.This research could provide certain guidance for the development of similar reservoirs.
作者
薛永超
李惠
余钟
张怀彪
Xue Yongchao;Li Hui;Yu Zhong;Zhang Huaibiao(China University of Petroleum(Beijing),Beijing 102249,China;PetroChina Changqing Oilfield Company,Qingyang,Gansu 745100,China)
出处
《特种油气藏》
CAS
CSCD
北大核心
2019年第6期52-57,共6页
Special Oil & Gas Reservoirs
基金
国家自然科学基金“页岩储层纳孔微缝耦合系统全息表征方法研究”(41672132)
国家油气重大专项“鄂尔多斯盆地致密油开发示范工程-长7致密油藏地层压力系统评价及优化”(2016ZX05013004)
关键词
低渗透储层
孔喉半径
压汞曲线
流动单元分类
西峰油田
low-permeability reservoir
pore-throat radius
mercury intrusion curve
flow unit division
Xifeng Oilfield
