高含水低幅度构造油田剩余油评价及挖潜措施  

Remaining oil evaluation and its developing measures in high water cut with low relief structure oilfields

作　　者：万学鹏[1] 陈龙 宋代文[2] 杨周平 于兴河[1] 

机构地区：[1]中国地质大学能源学院,北京100083 [2]中国石油天然气勘探开发公司,北京100034

出　　处：《大庆石油学院学报》2008年第4期35-37,60,共4页Journal of Daqing Petroleum Institute

基　　金：国家重点基础研究发展规划(973)资助项目(2003CB214607)

摘　　要：针对厄瓜多尔奥连特盆地中部T区块D＆F油田M1油藏，以低幅度构造为主，目前油田含水率高达90％，采用精细数值模拟方法，对该油藏剩余油潜力和分布规律进行研究．结果表明，M1油藏剩余油纵向上主要分布在油层顶部、平面上主要分布在井网稀疏区域和构造高部位．针对此分布特点，制定了水平井、加密井、堵水上返、调整产液量等剩余油挖潜措施；实施后，水平井投产后年平均日产油167t，36口加密井的日产油量是周边老井的2倍以上，堵水上返措施平均单井日增油为62t，合理提液措施单井日产油可以提高30％～120％．该成果对高含水期油田剩余油挖潜具有借鉴意义．On the basis of D & F Oilfield in block T, which is located in the middle of Oriente basin, Ecuador, the structures of M1 reservoir in it are low relief structures, water cut up to 90%. Fine simulation is carried out in order to find out the residual oil potential and distribution in this oilfield. The results show that the residual oil distribution in this oilfield is found in top of zones by portrait and in less well located area or high structure position by horizon. On the basis of the specific character, formulating the development of the residual oil, such as the horizontal well, fill-in well, the water shutoff, adjusting the fluid rate etc. After the implementation, the average daily oil rate of horizontal well is 167 t, the average daily oil rate of 36 fill-in wells is twice as much as the that of the old wells, the average daily oil rate increase of the average single well of the water shutoff is 62 t, the daily oil rate of the single well of the reasonable increased fluid rate measures can increase by 30 to 120 percent. This results of research and the effects of measures have some reference significance in mature oilfield later period development.

关 键 词：高含水 低幅度构造 剩余油评价 挖潜措施 

分 类 号：TE357.43[石油与天然气工程—油气田开发工程]