暂堵酸化技术的研究及在中原油田的应用  

Study and application of temporary plugging acidization technology in Zhongyuan oilfield

作　　者：范志毅[1] 崔海军[1] 李先锋[1] 吴广涛[1] 张大楷[1] 聂申健[1] 

机构地区：[1]中国石化中原油田分公司采油三厂,山东莘县252429

出　　处：《石油地质与工程》2011年第3期114-116,9,共4页Petroleum Geology and Engineering

摘　　要：文、卫油田属复杂断块油田,储层非均质性较严重,层间渗透率级差大,经过多年的注水开发,吸水剖面不均匀性日趋加剧,严重影响了油田开发水平的提高。暂堵酸化技术是通过泵入暂堵剂在高渗透层及部分中渗透层形成低渗透滤饼,从而使酸液转向中、低渗透层,能有效地解除中低渗透层伤害,改善吸水剖面,提高酸液利用率,为此研究应用了暂堵酸化技术,实验筛选出了颗粒型水溶性暂堵剂。该暂堵剂现场应用5井次,成功率100%,有效率87%。Wen- Wei oilfields are complex fault block oilfield,reservoir heterogeneity is serious,the level of formation permeability is big.Years of development of water injection caused more serious heterogeneity of water injection profile,which influenced influence oilfield development level enhancement. Temporary plugging acidization technology means by pumping temporary plugging additive to form low permeable filter cake in high permeability layer and parts of middle permeability layer,then cause the acid liquor to flow into middle and low permeability layer,which can relieve middle and low permeability layer damage effectively,improve water injection profile,enhance acid liquor utility.With the study and application of temporary plugging acidization technology, grain water-soluble temporary plugging additive had been screened through experiments and it has been applied 5 well times,success ratio is 100%,effectiveness is 87%.

关 键 词：暂堵酸化 吸水剖面 中原油田 非均质性油藏 暂堵剂 

分 类 号：TE[石油与天然气工程]