玉北地区交联酸携砂酸压工艺研究与评价  

Research and evaluation of proppant-carrying cross-linked acid fracturing in Yubei area

作　　者：李永寿[1] 贺正刚[2] 鄢宇杰[1] 

机构地区：[1]中国石化西北油田分公司工程技术研究院,新疆乌鲁木齐830011 [2]中国石化西北油田分公司塔河采油三厂,新疆库尔勒841604

出　　处：《复杂油气藏》2015年第1期75-78,共4页Complex Hydrocarbon Reservoirs

基　　金：国家科技重大专项课题"缝洞型碳酸盐岩油藏高效酸压改造技术"(2011ZX05014-006)

摘　　要：玉北地区储层非均质性强,温度高,天然裂缝发育,酸压过程中存在酸岩反应速度快和滤失严重等问题,难以形成导流能力高的长缝。在分析玉北储层地质特征基础上,研制出适合该地区的低伤害耐高温交联酸体系,并对其进行了系统评价,同时开展了酸携砂复合酸压工艺研究,论证了酸蚀支撑裂缝导流能力优于未填入支撑剂的裂缝,以及酸携砂工艺在玉北裂缝型储层的可行性。在大量室内实验和模型计算基础上进行了现场试验,形成了一套适合玉北地区的高效酸压技术。The characteristics of reservoir in Yubei area include strong heterogeneity,high temperature and numerous natural fractures. There are serious problems of fast acid- rock reaction,severe lost circulation,etc. in the process of acid- fracturing. So it is difficult to form the long fracture with high flow conductivity. Based on the analysis of reservoir geological characteristics of Yubei area,we have developed an acid system with low damage and high temperature resistance. In the meantime,we carried out the research of proppant- carring crosslinked acid- fracturing technology. After numbers of experiments and model calculations,this technology has been used successfully on site,forming an efficient acid fracturing technology for Yubei area.

关 键 词：玉北地区 交联酸 酸携砂工艺 效果评价 

分 类 号：TE357.2[石油与天然气工程—油气田开发工程]