摘要
首先通过清洗剂配方筛选实验,初步确定水泥石清洗剂的配方为:40 mL 2％FSJ-1+60 mL 30％ HGS-A+60 mL 30％ HGS-B.清洗剂性能研究结果表明,复配清洗剂动态溶解效率显著高于静态溶解效率;复配清洗剂浓度增加,溶解效率增加;复配清洗剂配比不变,用量增加时,溶解水泥石的绝对量也显著增加.清洗剂对水泥石溶解率随时间增加而增加;溶解效率随水泥石厚度的减少而增加.复配清洗剂中添加1.0％的缓蚀剂会使其溶解水泥石的效率显著下降;但添加0.5％缓蚀剂JPC-3不影响清洗剂溶解水泥石效率,对N80钢、A3钢、废密度计自制钢片的平均腐蚀速率分别为2.2245 g/(m2·h)、1.9383 g/(m2·h)、2.0392g/(m2·h),腐蚀速率均小于3.0 g/(m2·h),满足中国石油天然气行业标准SY/T5405-1996的Ⅰ级标准(3～5)g/(m2·h).水泥石清洗剂的最终配方为:40mL2 ％FSJ-1 +60mL30％ HGS-A+60mL30％ HGS-B+0.8gJPC-3.最后利用该清洗剂在油田生产现场清洗一台完全堵塞的密度计6.0h,获得成功.
The confirmed cleaning agent formula is 40 mL 2% FSJ-1 + 60 mL 30% HGS-A + 60mL 30% HGS-B via the cleaning agent formulation screening test of cement stone.The results of the performance of cleaning agent show that dynamic dissolution efficiency of compound cleaning agent is significantly higher than that of static dissolving efficiency;dissolution efficiency increases with concentration increase of compound cleaning agent.The absolute amount of dissolved cement is also significantly increased as the dosage of compound cleaning agent increases,Cement dissolution rate of cleaning agent increased with time increasing,and dissolution efficiency increases also with the reducing thickness of cement stone.Adding 1% inhibitor into compound cleaning agent decreased significantly,adding 0.5% inhibitor JPC-3 the dissolving efficiency of cement stone is not affected.The average corrosion rate of N80 steel,A3 steel,waste density meter homemade steel sheet are respectively2.224 5 g/( m2·h),1.938 3 g/( m2·h),2.039 2 g/( m2·h) in compound cleaning agent when adding 0.5% JPC-3inhibitor,their corrosion rate is less than 3 g/( m2·h),which meet the grade I standard of China Petroleum and natural gas industry standard SY/T5405-1996( 3.0 ~ 5.0) g/( m2·h).The final formula for cleaning cement agent is 40 mL 2% FSJ-1 +60 mL 30% HGS-A +60mL 30% HGS-B + 0.8 g JPC-3.Finally,it is a success to clean a completely blocked density meter6.0 h,using the cleaning agent in oilfield production site.
出处
《清洗世界》
CAS
2013年第11期22-28,共7页
Cleaning World
基金
中国石化集团河南石油勘探局项目(10300059-12-FW2019-0001)
关键词
固井水泥车密度计
水泥石
清洗剂
cementing truck density meter
cement stone
cleaning agent
