丙烯酸/丙烯酸甲酯/马来酸酐共聚物合成与阻垢性能研究  

Synthesis and Performance of Scale Inhibitor AA/MAC/MA

作　　者：邹玮[1] 唐善法[1] 刘坤[2] 熊玉娟[1] 

机构地区：[1]长江大学石油工程学院,湖北荆州434023 [2]中国石油新疆油田分公司采油一厂,新疆克拉玛依834000

出　　处：《油田化学》2012年第4期493-496,共4页Oilfield Chemistry

摘　　要：合成了丙烯酸/丙烯酸甲酯/马来酸酐三元共聚物,命名为CT,通过红外光谱对其结构进行了表征;研究了该共聚物对高钡离子水、高锶离子水及油田模拟复合离子(Ca2+、Mg2+、Ba2+、Sr2+)水的阻垢效果,探讨了高钙离子含量下进一步提高其阻垢效果的措施。结果表明,在加量为60 mg/L下,CT对硫酸钡、硫酸锶阻垢率分别达100%和80%,但对钙垢阻垢率仅为50%。CT对油田低钙(Ca2+含量400 mg/L)、高钡(Ba2+含量500 mg/L)锶(Sr2+含量500 mg/L)复合离子水体的阻钙垢和钡锶垢的效果明显,在CT加量为100 mg/L下,阻垢率均达90%。质量比2:1的CT与钙阻垢剂CX的复配物,在加量为100 mg/L时,可使高钙(Ca2+含量1000 mg/L)、高钡(Ba2+含量500 mg/L)锶(Sr2+含量200 mg/L)复合离子水体的阻垢率达96.7%,可满足高钙、高钡锶离子水体阻复合垢需要。The poly （AA/MAC/MA） terpolymer was synthesized, named as CT, and the structure was characterized by infra-red spectrum. The scale inhibition effect of CT was also studied under high barium ion or high strontium ion concentration aqueous medium or the simulated formation water （containing Ca^2＋, Mg^2＋, Ba^2＋, Sr^2＋） condition. Furtherly, the measures to improve the scale inhibition effect of CT in high content of calcium ion was investigated. The results indicated that when adding 60 mg/L CT, the inhibition rate of BaSO4scale and SrSO4 scale was up to 100% and 80%, respectively, but the inhibition rate of calcium scale was only 50%. And the scale inhibition effect of CT was very obvious in simulated formation water containing low calcium ions （400 mg/L）, high barium ions （500 mg/L） and high strontium ions （500 mg/L）, as a result, the scale inhibition rate were up to 90% at a dosage of 100 mg/L. The complex scale inhibitor, which was composed of CT and CX in mass ratio of 2：1, could make the inhibition rate be up to 96.7% at a dosage of 100 mg/L in high calcium（ 1000 mg/L）, high barium（500 rag/L） and high strontium （200 mg/L） ion water, resulting in satisfying the need of restraining composite scale.

关 键 词：丙烯酸 丙烯酸甲酯 马来酸酐三元共聚物 阻垢性能 高钡锶离子 钡锶垢 复合垢 

分 类 号：TE358.5[石油与天然气工程—油气田开发工程]