聚环氧琥珀酸的合成及缓蚀阻垢性能研究.pdf

第40卷第3期
当代化工
Vo1.40. No.3
2011年3月
Contemporary Chemical Industry
March. 2011
聚环氧琥珀酸的合成及缓蚀阻垢性能研究
吴雪琴·2,吴大伟,吴大琼,孙昊天,原晓珠2,熊希
(1长江大学油气钻采工程湖北省重点实验室,湖北荆州434020:2.长江大学石油工程学院,湖北荆州434023
3.中国石化胜利石油管理局石油开发中心、山东东营257000;4.中国石化东北油气分公司,吉林长春130062)
要:在实验室以马来酸酐为原料通过催化聚合制备聚坏氧琥珀酸(PFSA),通过对影响PESA缓蚀阻
垢性能的3个合成条件(聚合反应的时间、温度和引发剂加量)设置三因素三水平正交试验组,确定其最佳
聚合条件为:聚合反应时问为3h,温度为85℃、引发剂加量为0.07:1。在该最优条件下合成PESA,当其
加量为40mgL时,对钙离子浓度小于500mgL的溶液阻垢效率达到100%,对钙离子浓度为600~700mg
的溶液阻垢效率达到85%以上;PESA加量为40mgL时,能将P11钢在温度为50℃、pH=6的腐蚀介质中
的腐蚀速率控制在0.069mm/a。
关键词:聚合;缓蚀;阳垢
中图分类号:TQ316文献标识码:A文章编号:1671-0460(2011)03-0252-03
Study on Synthesis and Corrosion and Scale Inhibition
Performances of Polyepoxy Succinic Acid
WU Xue-gint2, WU Da-wei, WU Da-giong SUN Hao-tian, YUAN Xia0-zhu2, XONG i2
(1 Key Laboratory of Oil and Gas Drilling and Production Engineering, Yangtze University, Hubei Jin zhou 434023, China
2. College of Petrolcum Engineering, Yangtze University, Hubei Jingzhou 434023, China;
3. Shengli Oilfield Administration Bureau Petroleum Development Center, Shandong Dongying 257000, China;
4. SINOPEC Northeast Oil-gas Field Company, Jilin Changchun 130062, China)
Abstract: Polyepoxy succinic acid(PSA)was s thesize by ca alytic polymerization with maleic anhydride as raw
materials in lab. After setting three factors three levels orthogonal test on the three
conditions(polymerization reaction time, temperature and initiator dosage), the best polymerization conditions for
PESA were determined as follows: polymerization time 3 h, temperature 85C, initiator dosage 0.075 1. When
dosage of PESA prepared under above conditions was 40 mg/L, anti-scaling efficiency for solution whose calcium
ion concentration was less than 500 m / could reach 100%; for solution whose calcium ion concentration was about
600-700 m/, anti-scaling efficiency could be above 85% When PESA dosage was 40 m /, corrosion rate of Pl10
steel in corrosion medium under conditions of temperature 50 C and ph=6 could be controlled within 0.069 mm/a
Key words: Polymerization; Corrosion inhibition; Scale inhibition
油田生产开发中,井筒面临着严重的腐蚀与结件下合成PESA产物进行阻垢、缓蚀性能研究。
垢问题,随着开发深入,油井含水率升高,生产井
井筒面临的腐蚀与结垢问题更加严峻”。腐蚀能使
实验部分
井筒穿孔,造成油井报废,影响油用正常生产,结1.1实验材料
垢将会造成井筒的垢下腐蚀,使井筒腐蚀加速。
实验药品:顺丁烯二酸酐,氢氧化钠,过氧化
因此,采取适当的手段对井筒进行腐蚀与结垢防护氢(30%),钨酸钠,自制引发剂,鸟洛托品,氯化钠,
对油田安全高效生产具有重大意义。聚环氧琥珀酸氯化钙,氯化锶;实验仪器:四ロ瓶,多功能搅拌器,
(PESA)是美国PCC公司开发80年代末期开发的超级恒温水浴锅, CORTEST材料腐蚀测试系统。
种无磷水处理,阚振江等研究表明,PESA对钙1.2实验方法
垢具有良好的抑制性能,同时相关研究表明PESA1.2.1PESA合成实验
对矿化度水腐蚀具有较优良的缓蚀性能。笔者通过
在装有温度计、冷凝管、滴液漏斗和恒速搅拌
正交试验确定PESA的最优合成方案,并对最优条装置的四口烧瓶内加入245g马来酸酐,加约40mL
收稿日期:2010-12-06
作者筒介:吴雪琴(1987ー),女,硕士,湖北天门人,听究方向:油田水处理。E-mail:wuxuedin2004@126.comn