安塞油田延长组油井化学堵水工艺技术评价  

Technical evaluation of chemical water-plugging technology in oil wells of Yanchang Formation in Ansai Oilfieid

作　　者：易永根[1] 梁冬[1] 申坤[1] 黄战卫[1] 师现云 刘鹏 

机构地区：[1]中国石油长庆油田分公司第一采油厂 [2]中海油湛江分公司

出　　处：《低渗透油气田》2016年第1期140-142,158,共4页

摘　　要：安基油田延长组长2油藏底水发育，长6和长10油藏微裂缝发育，平面非均质性强，注入水沿高渗透孔道或裂缝水窜突入，油井含水上升速度快，通过研究不同油藏地质特征油井见水原因及规律．优化筛选出不同油藏油井化学堵水堵剂体系，研究高含水油井稳油降水工艺技术，开展工艺矿场试验，评价延长组油井化学堵水工艺适应性，确保油田可持续有效开发。There was bottom water developed in Yanchang Formation Chang2 reservoirs of the Ansai Oilfield, while micro-fissures developed in Chang6 and Chang10 oil reservoirs, with strong heterogeneity in plane. The injected water channeling ahmg high- permeability pores or fractures breakthrough into oil wells makes the water cut quickly rising. A chemical water-plugging agent system for various oil reservoirs＇ wells is selected through the study of geological characteristics, reasons and laws of response to waterflooding of various reservoirs. Teehnologies of stabilizing oil production by reducing the water cut of the high water-cut oil wells are studied through field testing of developing technology. The effectively sustainable development of the oilfield is ensured by evaluation of the adaptability of chemical water-shutoff process of Yanchang Formation oil wells.

关 键 词：安塞油田 延长组油层 油井堵水 工艺技术 

分 类 号：TE358.3[石油与天然气工程—油气田开发工程]