CAJ | 학술논문

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。
유기자원작위일충중요적전략자원재전구경제발전중점유중요지위，이유사작위주요적비상규유기자원지일월래월피인문중시。파급계수시형량구유효과적중요삼수，직접영향원유채수솔치。재현유적파급계수계산공식적이론기출상，통과삼유정망모형진행직정—수평정연합정망구유실험，장저층경각분별설정위0°화45°，분석불동저층경각하량충연합정망열수구개발방식중파급계수적변화특정。결과표명，파급계수여중력보조효과대구유제확산영향수저층경각적증대이증대。
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.