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
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- 引用格式:
-
涂乙,吴萌,罗辉利.油田水驱开发后的地层结垢实验和防垢剂优选[J].天然气与石油,2011,29(4):0.doi:
.Dynamic Scaling Test Study and Scale Inhibitor Optimization[J].Natural Gas and Oil,2011,29(4):0.doi:
- DOI:
- 作者:
- 涂 乙1 吴 萌2 罗辉利3
- 作者单位:
- 1.中国石油大学（北京）石油工程学院，2.长江大学石油工程学院，3.四川华油集团重庆凯源石油天然气有限责任公司
- 关键词:
- 动态实验；渗透率；防垢剂
Dynamic test；Permeability；Scale inhibitor
- 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.
