区块整体弱凝胶调驱矿场试验及效果  

Field test on integral modifying and flooding project in regional reservoir with weak gel

作　　者：唐孝芬[1] 吴奇[2] 刘戈辉[1] 顾树人[3] 李红艳[4] 

机构地区：[1]中国石油勘探开发研究院,北京100083 [2]石油大学,北京102249 [3]中国石油辽河油田分公司茨榆坨采油厂,辽宁辽中110206 [4]中国地质大学,北京100083

出　　处：《石油学报》2003年第4期58-61,共4页Acta Petrolei Sinica

基　　金：中国石油天然气股份公司重点科技项目 (2 0 0 50 8 0 7 1 )

摘　　要：利用弱凝胶在高渗透大孔道中的运移及低渗透小孔隙地层中的不可入性能 ,对存在高渗透通道的水驱油藏进行深部调驱试验 ,可以改善高含水开采期油层深部的非均质程度 ,实现油藏的稳油控水 (或增油降水 )。应用弱凝胶在辽河茨榆坨采油厂青龙台油田龙 11区块进行的整体调驱矿场试验结果表明 ,弱凝胶深部调驱可以有效地改善了严重非均质油藏高含水开采期的水驱开发效果 ,减缓了油田的自然递减速度 ,并获得较好的增油降水效果。在实施 1 5a内 ,不考虑自然递减及其他作业措施的情况下 ,区块累积增油 712 6 1t ,产水量减少 14 0 5 4m3 ,投入产出比大于 1∶7。The weak gel has the migratory aptitude in the high_permeability path and the impenetrability in the low_transmissibility fine pore layers.The water drive reservoir with high_permeable path was deeply modified and flooded using weak gel to improve the heterogeneity degree of deep oil layers.The application effect of weak gel in Long_11 Block of Qinglongtai Oil Field in Ciyutuo Production Plant of Liaohe Field indicated that the deep modifying_flooding effect of weak gel efficiently ameliorated water_flooding development of the reservoir with high water_cut and high heterogeneity,slowed the decline rate of oil production and accomplished good result of increasing oil and reducing water.During one and a half year,the cumulative increasing oil production was 7126 1 tons,the water production was reduced by 14054 cubic meters.The input_output ratio was more than 1∶7 without considering natural decline and other operation measures.

关 键 词：高含水油藏 区块调剖 弱凝胶 调驱剂 调剖剂 现场试验 

分 类 号：TE357.431[石油与天然气工程—油气田开发工程]