储层倾角对联合井网热水驱波及系数的影响研究  

Research on Effect of Reservoir Stratigraphic Dip Angle on Sweep Efficiency of Hot Water Flooding in Combination Well Pattern

作　　者：李松琦 王璐璐[1] 徐子健[1] 陈秋实[1] 于光坤 贾振华[1] 李东胜[1] 潘一[1] 

机构地区：[1]辽宁石油化工大学,辽宁抚顺113001 [2]青海油田涩北作业公司,青海格尔木816000

出　　处：《当代化工》2015年第4期804-805,828,共3页Contemporary Chemical Industry

基　　金：辽宁省大学生创新创业训练计划资助项目(省级;编号201410148018)

摘　　要：油气资源作为一种重要的战略资源在全球经济发展中占有重要地位,而油砂作为主要的非常规油气资源之一越来越被人们重视。波及系数是衡量驱油效果的重要参数,直接影响原油采收率值。在现有的波及系数计算公式的理论基础上,通过三维井网模型进行直井—水平井联合井网驱油实验,将储层倾角分别设定为0°和45°,分析不同储层倾角下两种联合井网热水驱开发方式中波及系数的变化特征。结果表明,波及系数与重力辅助效果对驱油剂扩散影响随储层倾角的增大而增大。Oil and gas resources as an important strategic resources occupy an important position in the global economic development, and oil sands as the main one of unconventional oil and gas resources obtain more and more attention. The sweep efficiency is a crucial parameter to evaluate oil displacement effect, directly affect the oil recovery value. On the basis of existing sweep efficiency calculation formula, the three-dimensional pattern model was used to carry out oil displacement experiment of combined well pattern of vertical wells and horizontal wells, reservoir stratigraphic dip angle was set 0° and 45° respectively, change characteristics of sweep efficiency of hot water flooding development mode of two kinds of combined well pattern under different reservoir stratigraphic dip angle were analyzed. The results show that effect of the sweep efficiency and gravity assisted effect on oil displacement agent diffusion can increase with stratigraphic dip angle increasing of the reservoir.

关 键 词：储层倾角 联合井网 波及系数 

分 类 号：TQ325[化学工程—合成树脂塑料工业]