增产措施见效高峰期开发指标预测  

Development index forecasting of peak period of response for stimulation

作　　者：王学忠[1] 刘慧卿[2] 曾流芳[3] 

机构地区：[1]胜利油田分公司新疆勘探开发中心,山东东营257000 [2]中国石油大学石油天然气工程学院,北京102249 [3]胜利油田分公司孤东采油厂,山东东营257237

出　　处：《断块油气田》2010年第3期351-353,共3页Fault-Block Oil & Gas Field

基　　金：国家重点基础研究发展规划(973计划)项目"孤东七区西Ng54-Ng61层二元复合驱油先导试验"(G1999022506)

摘　　要：受Weierstrass定理启发,找到一个判断各种水驱特征曲线优劣的标准,即以能避免绝对值很小的数做分母为优,按照此标准优选出马成国水驱特征曲线及其经验公式,并以此标定出孤东二元复合驱试验前采收率为30.68%。孤东油田自2003年9月开展国内首例聚合物/石油磺酸盐二元复合驱先导试验,截至2007年12月,累计增油13.1×104 t,处于见效高峰期,在孤东二元复合驱见效高峰期,应用修匀-递减方法、翁氏模型预测、年产油量重新排序法、含水再次达到最低点以后重新开始累计产液-累计产油曲线等4种方法标定孤东二元复合驱最终采收率为38.02%,比试验前采收率提高7.34个百分点。预测结果与3 a后的矿场生产数据一致,表明研究成果精确度较高,具有推广应用价值。Inspired by the Weierstrass theorem,the author finds out the applicable standard of various water-drive characteristic curves,that is to avoid a very small number in absolute terms to use as the denominator for the gifted.According to this applicable standard,the Ma Chengguo′s water-drive characteristic curves and the empirical formula can be selected.From this,the recovery efficiency is calibrated to be 30.68% before surfactant-polymer-combination flooding pilot in Gudong Oilfield.The first surfactant-polymer-combination flooding pilot is implemented in this oilfield in September 2003.Up to Dec.2007,the cumulative oil increment has been 13.1 ×104t,which is at the peak period of response for stimulation.By using a series of methods such as graduation,Weng-model forecasting,reordering for yearly oil production and redrawing the accumulative liquid production to accumulative oil recovery curve after touching bottom of water cut,the recovery efficiency is calibrated to be 38.02%.The calibrated oil recovery of surfactant-polymer-combination flooding pilot improved 7.34 percent.The predicted results are consistent with the field production data obtained after three years,which shows that the research results have high accuracy,and have popularization and application value.

关 键 词：开发指标预测 重要增产措施 见效高峰期 二元复合驱 采收率 

分 类 号：TE327[石油与天然气工程—油气田开发工程]