利用示踪剂模拟分析礁灰岩油田油水运动规律  

ANALYSIS ON OIL AND WATER MOVEMENT LAWS IN REEF LIMESTONE RESERVOIR BY USING TRACER TRACKING NUMERICAL SIMULATION

作　　者：宁玉萍 程佳 张伟 吴浩武 刘平 

机构地区：[1]中海石油(中国)有限公司深圳分公司

出　　处：《钻采工艺》2016年第1期107-110,11,共4页Drilling & Production Technology

摘　　要：针对开发过程中无法精准预测并描述单一油藏内不同小层或特定区域的油水运动规律的问题,开展了利用示踪剂油藏数值模拟技术进行油水运动追踪的方法研究。提出的研究方法可在开采过程中直观地明确油藏内不同小层或者特定区的原油动用情况和底水运动规律等。该方法被首次应用于特高含水期的礁灰岩底水油藏MX2-1油田,对不同层原油定义不同油相示踪剂分析模拟计算结果可定量给出各小层实际的储量动用情况,对底水进行水相示踪,可更加清楚地判断动油水界面变化情况,结合油水运动规律分析成果可有效找出平面和纵向潜力区,对此类油田的后期开发调整的井位部署具有重要的指导意义。Aimed to solve the problem that how to accurately describe oil- water movement laws in different layers or specific area in a single reservoir during the oilfield development,research on the method to track oil and water underground by trace reservoir numerical simulation is carried out. The new method proposed can investigate the sweep efficiency of water driving and movement law of oil and water in different layers or specific area during the ever- changing development. This method is first used in MX2- 1Oilfield,a complex reef limestone heavy oil reservoir with fractures,which is now at the ultra- high water cut stage. Through defining the oils of different layers with different oil tracers,the producing reserves of different layers can be obtained quantitatively by analyzing the result of simulation after simulative calculation. Meanwhile,by defining bottom water with water tracers we can judge the variation of oil- water interface more intuitively and clearly. Based on the analyzed oil and water movement laws,the potential areas of target oilfield can be found out. In all,it is of great significance for guiding the adjusting- wells placement of the reef limestone oilfield by using tracer tracking numerical simulation.

关 键 词：示踪剂模拟 储量动用情况 动油水界面 礁灰岩油田 双重介质 

分 类 号：TE31[石油与天然气工程—油气田开发工程]