CAJ | 학술논문

将“拟颗粒模拟技术”应用至缝洞型碳酸盐岩油藏，设计多尺度缝洞网络概念模型，分析模型的水驱过程，揭示：由于溶洞和油井配置关系不理想，溶洞顶部滞留的洞顶剩余油和由于高导流通道而未被水体波及的剩余油是缝洞型油藏剩余油的主要存在形式。由模型的含水变化特征类比实体油藏单井的见水规律，选塔河4区S48单元TK412井为类比对象，在三维地质模型基础上，从储集体最高点逐级向下切片，按网格积分初步估算TK412井控制溶洞顶部滞留的“洞顶剩余油”110×104 t。分析表明：油井含水达90%以上，仍然存在大量剩余油，油藏开发潜力极大。
장“의과립모의기술”응용지봉동형탄산염암유장，설계다척도봉동망락개념모형，분석모형적수구과정，게시：유우용동화유정배치관계불이상，용동정부체류적동정잉여유화유우고도류통도이미피수체파급적잉여유시봉동형유장잉여유적주요존재형식。유모형적함수변화특정류비실체유장단정적견수규률，선탑하4구S48단원TK412정위류비대상，재삼유지질모형기출상，종저집체최고점축급향하절편，안망격적분초보고산TK412정공제용동정부체류적“동정잉여유”110×104 t。분석표명：유정함수체90%이상，잉연존재대량잉여유，유장개발잠력겁대。
The pseudo-particle simulation technology was first introduced to the study of karstic-fracture carbonate reservoirs. The multiscale fracture-cave network conceptual model was designed,and the water flooding process of the model was recorded. The research shows that when cave and well configuration is unreasonable,there is some residual oil in high local control point in the cave. What’s more,residual oil also exists due to high conductivity fracture,which was not affected by water. They are the two major forms of residual oil in karstic-fractured reservoir. According to the water change characteristics of multiscale fracture-cave network conceptual model,the reservoir analysis subject was defined to well TK412 of S48 cell in the fourth block of Tahe Oilfield. According to the three-dimensional geologic model,from the highest point down,well TK412 is estimated to have 110 million tons of residual oil. According to the analysis,despite the more than 90%water ratio,there is still a large amount of remaining oil with great development potential.