油田水驱开发后的地层结垢实验和防垢剂优选  

Dynamic Scaling Test Study and Scale Inhibitor Optimization

作　　者：涂乙[1] 吴萌[2] 罗辉利 

机构地区：[1]中国石油大学(北京)石油工程学院,北京102249 [2]长江大学石油工程学院,湖北荆州434025 [3]四川华油集团重庆凯源石油天然气有限责任公司,重庆400021

出　　处：《天然气与石油》2011年第4期57-58,84,共3页Natural Gas and Oil

基　　金：国家大学生创新性实验计划项目<注水开发油田结垢对地层的伤害>(081048908)

摘　　要：针对无机碳酸钙垢对油田地层伤害程度的问题,进行了动态模拟实验研究,采用计算渗透率保留率K/Ki来判断结垢对地层的伤害程度,结果表明：当累计注入100倍孔隙体积溶液时,岩石渗透率下降幅度高达16%-21%,说明无机垢对储层渗透率影响不能忽略。随后运用化学防垢剂防垢技术,进行了防垢剂筛选实验,其中JPS-04、JPS-05和JPS-06等有机膦酸型的防垢剂防垢效果明显,能有效地缓解结垢对地层的伤害程度,尤其是JPS-06防垢剂防垢效果最好。In view of damage degree of inorganic calcium carbonate scale on oil field formation,conducted is dynamic simulation experimental study to calculate permeability retention K/Ki and estimate damage degree of scaling.The results show that the rock permeability rate will drop by 16%-21% if 100 times of pore volume solution is injected cumulatively,which means that effect of inorganic scale on the reservoir permeability can not be neglected.Adopted are chemical antiscale technologies to conduct experiments for screening scale inhibitors and experiment results show that such organic phosphonic acid scale inhibitors as JPS-04,JPS-05 and JPS-06 have obvious antiscale effects and can effectively relieve damage degree of scaling on oil field formation,especially JPS-06 scale inhibitor has optimum antiscale effect.

关 键 词：动态实验 渗透率 防垢剂 

分 类 号：TE357.6[石油与天然气工程—油气田开发工程]