广谱屏蔽暂堵技术在大港油田的应用  

APPLICATION OF THE GENERALIZED SHIELDING TEMPORARY PLUGGING TECHNOLOGY IN DAGANG OILFIELD

作　　者：吕军[1] 许绍营[2] 危常兵[2] 徐同台[3] 

机构地区：[1]大港油田公司油气开发事业部 [2]大港油田集团公司 [3]中国石油天然气集团公司

出　　处：《钻采工艺》2004年第5期18-21,共4页Drilling & Production Technology

摘　　要：广谱屏蔽暂堵技术根据岩心分析和孔喉特性数据计算不同渗透率段下的平均D流动50和Dmax,然后依据D流动50和Dmax确定不同渗透率段下暂堵粒子的直径,同时分析研究目的层渗透率和孔喉直径分布规律,确定所需的多种架桥粒子的比例。该技术在大港油田使用后效果明显,渗透率恢复值达到98%。试验井平均产油量比邻井提高了40.82%。The generalized shielding temporary plugging technology can determine the diameters of various temporary grain in different permeability well section based on the change law of available pore throat diameter D flow50 and D max of the reservoir.Meanwhile,the technology can also determine the proportion of various bridging grain needed according to the permeability of objective formation and distribution law of pore throat diameter.Through field application of the technology in Dagang oilfield,the average oil production of test well is increased by 40.82% than that of offset well.

关 键 词：广谱屏蔽暂堵技术 大港油田 岩心 渗透率 非均质性 降粘剂 储层保护技术 

分 类 号：TE258[石油与天然气工程—油气井工程]