CAJ | 학술논문

基于流体力学以及渗流力学原理，将油藏假定为多孔介质，建立了多孔介质水驱油流固耦合方程，对同一油藏的三种不同井网进行了三维数值研究。得出整个油藏平面的压力分布，不同采油年份剩余油质量分数分布规律、以及采油过程中关键因素采收率，得到准确的采油能力大小排列，并最终选出最优井网。采油从开始到采油2 a 这段时间内，3种井网采油率由小到大的排列顺序为：排状法<5点法<9点法，采油2 a 到8 a间采油率有小到大的排列顺序为：排状法<9点法<5点法，三种采油方式都是采油达到8 a时采收率达到最高值，采油时间达到6 a 之前，采油率增长较为明显。
기우류체역학이급삼류역학원리，장유장가정위다공개질，건립료다공개질수구유류고우합방정，대동일유장적삼충불동정망진행료삼유수치연구。득출정개유장평면적압력분포，불동채유년빈잉여유질량분수분포규률、이급채유과정중관건인소채수솔，득도준학적채유능력대소배렬，병최종선출최우정망。채유종개시도채유2 a 저단시간내，3충정망채유솔유소도대적배렬순서위：배상법<5점법<9점법，채유2 a 도8 a간채유솔유소도대적배렬순서위：배상법<9점법<5점법，삼충채유방식도시채유체도8 a시채수솔체도최고치，채유시간체도6 a 지전，채유솔증장교위명현。
Fluid and solid coupled heat transfer control equation of water-driven oil in porous media was established by the theory of percolation mechanics and fluid mechanics. Three-dimensional numerical simulation of the same reservoir with three different well patterns was carried out. The plane pressure distribution of the reservoir was obtained as well as different year oil remaining oil content distribution and key factors in the process of oil recovery. The order of oil production capacity was determined, and the optimal well spacing was ultimately got. The results show that, within two years from the beginning of oil production, three kinds of well patterns’ productivity order is:row-like method <five-point method <nine-point method; from the third year to the eighth year, three kinds of well patterns’ productivity order is: row-like method < nine-point method < five-point method; the productivity of all three methods can reach the highest value in the eighth year; in initial six years, the growth of productivity is obvious.