北布扎奇油田含水上升原因分析及改善措施  

Analysis of the Reason of Water-cut Increase in North Buzachi Oilfield and Measures for Improvement

作　　者：羊玉平[1] 张利锋[1] 段畅[1] 范晓娜[1] 董宏[1] 陈燕辉[1] 

机构地区：[1]新疆油田分公司勘探开发研究院,新疆克拉玛依834000

出　　处：《石油天然气学报》2009年第3期291-293,共3页Journal of Oil and Gas Technology

摘　　要：针对北布扎奇油田薄层、底水的油藏特点及油井含水上升较快的现状,利用老井侧钻水平井,有效避开油藏底水水锥,最大限度地延长了油井低含水采油期。介绍了原井的筛选原则;侧钻靶区地质设计;侧钻水平井水平段长度优选。按照以上地质设计,2004年12月在北布扎奇油田成功实施了NB31短半径开窗侧钻水平井,该井投产后获得日产234t的高产油流后,产量一直稳定在50t/d以上,含水由侧钻前的92%下降至10%。截止2005年10月NB31已累积增产原油7830t,取得了较好的经济效益。In view of the characteristics of thin reservoirs, bottom-water breakthrough, and current situation of rapid increase of water-cut in the producing wells of North Buzachi Oilfield in Kazakhstan, the existing wells were used for sidetracking in horizontal drilling to keep away from the reservoir bottom-water coning effectively, maximizing the interval of low water-cut oil recovery of the wells. The research provides a cost-effective method for solving similar problems of wells with high water-cut in such reservoirs.

关 键 词：北布扎奇油田 底水油藏 水锥 侧钻水平井 

分 类 号：TE311[石油与天然气工程—油气田开发工程]