宝浪油田低孔低渗砂岩油气藏酸化技术研究与应用  

Research and Application of Acidizing Technique for Low Porosity and Low Permeability Sandstone Reservoir in Baolang Oilfield

作　　者：黄青松[1] 姚奕明 邢德钢 陶良军[1] 戚保良[1] 林景禹[1] 冯兴武[1] 

机构地区：[1]河南石油勘探局采油工艺研究所,河南桐柏474780

出　　处：《江汉石油学院学报》2000年第3期92-94,共3页Journal of Jianghan Petroleum Institute

摘　　要：针对宝浪油田低孔低渗油藏油层温度高、酸敏矿物含量高、注水压力高 ( 2 5MPa以上 )等问题 ,通过室内试验 ,研究出一种具有缓速、防止速敏、耐温高、低损害的复合酸体系 ,并形成了一套完整的酸化施工工艺。已在 1 1口油井、 1 7口水井上进行了现场试验 ,结果表明 ,单井注水量由 2 2 .7m3/d上升到 81 .1m3/d,累计增注 2 3 .5× 1 0 4m3,平均有效期 3 56d。In consideration of the problems of high temperature, high contents of acid sensitive materials and high water injection pressure(above 25 MPa) existing in low porosity and low permeability reservoirs in Baolang oilfield, through experiments in lab, a synthetic acid system is developed, which is characterized by retardation, velocity sensitive prevention, temperature resistance and small damage to reservoir, and a complete set of operation procedures are established as well Field tests are performed on 11 oil wells and 17 water injection wells The results show that the water injection rate of single well increases from 22 7 m 3 per day to 81 1 m 3 per day Total stimulation is 23 5×10 4 m 3,and the average valid period is 356 days

关 键 词：砂岩油气藏 低渗透油气藏 油层酸化 酸化压裂 

分 类 号：TE357.2[石油与天然气工程—油气田开发工程] TE348