中低温油藏强凝胶堵水剂的研究与应用  

Study and Application of Strong Gel Plugging Agent in Medium and Low Temperature Reservoir

作　　者：孔德月 KONG Deyue(Xinglongtai Oil Production Plant of PetroChina Liaohe Oilfield Company,Panjin,Liaoning 124010)

机构地区：[1]中国石油辽河油田兴隆台采油厂工艺研究所,辽宁盘锦124010

出　　处：《精细石油化工进展》2019年第6期16-19,共4页Advances in Fine Petrochemicals

摘　　要：油井高含水影响兴隆台油田生产,常规化学堵水剂在中低温条件下成胶不够稳定。以成胶性能为考察指标,研制了适用于中低温油藏条件的堵水剂体系配方为4.0%丙烯酰胺+4.0%改性淀粉+0.1%金属络合物+0.015%硫代硫酸铵。并对其进行性能评价,该堵水剂体系具有良好的热稳定性,且抗盐抗冲刷能力强,封堵性能好。堵水剂现场应用结果表明,该堵水剂体系降低了油井含水,提高了油井产能。High water cut of oil wells affects the production of Xinglongtai Oilfield,and the gelling is unstable when conventional chemical water blocking agent is used at medium and low temperature.A formulation of water plugging agent system suitable for use in medium and low temperature reservoir was developed with gelling performance as the investigation index:4.0%acrylamide+4.0%modified starch+0.1%metal complex+0.015%ammonium thiosulfate,and its performance was evaluated.This water plugging agent has good thermal stability,strong salt resistance and washing resistance properties,and high plugging performance.The field application results of this water plugging agent have shown that it reduced the water cut of oil wells and thus increased the productivity of oil wells.

关 键 词：兴隆台油田 堵水剂 丙烯酰胺 淀粉 成胶 

分 类 号：TE358.3[石油与天然气工程—油气田开发工程]