CAJ | 학술논문

针对油田三元复合驱过程产生的硅垢和钙垢,本文以马来酸酐、次亚磷酸钠、丙烯酰胺、聚乙二醇4000为单体,过硫酸铵-亚硫酸氢钠为引发剂,合成了一种新型四元共聚物防垢剂。确定了最佳合成条件,考察了防垢剂的防垢效果。结果表明,防垢剂加量100 mg/L、60℃时,测定硅垢防垢率为67.2%;70℃时,测定CaCO3垢防垢率为96.3%。指出四元共聚物防垢剂中的4种官能团的协同作用机理主要是晶格畸变与静电斥力作用;而由于聚乙二醇价格高,寻找价格低廉可降解的含醚键化合物是以后实验的主要研究方向。
침대유전삼원복합구과정산생적규구화개구,본문이마래산항、차아린산납、병희선알、취을이순4000위단체,과류산안-아류산경납위인발제,합성료일충신형사원공취물방구제。학정료최가합성조건,고찰료방구제적방구효과。결과표명,방구제가량100 mg/L、60℃시,측정규구방구솔위67.2%;70℃시,측정CaCO3구방구솔위96.3%。지출사원공취물방구제중적4충관능단적협동작용궤리주요시정격기변여정전척력작용;이유우취을이순개격고,심조개격저렴가강해적함미건화합물시이후실험적주요연구방향。
For the silica scale and calcium carbonate scale emerging in ASP flooding of oilfield,a quadripolymer scale inhibitor was prepared by maleic anhydride（MA）,sodium hypophosphite（NaH2PO2）,acrylamide（AM） and polyethylene glycol（PEG） 4000.The polymerization was initiated by the initiator with persulfate ammonium and sodium hydrogensulfite.The best condition was determined for the quadripolymer synthesis and its properties had been evaluated.The results show that the scale inhibit rate of silica scale is 67.2% at 60℃;the scale inhibit rate of CaCO3 is 96.3% at 70℃,when the scale inhibit dosage is 100mg/L.It is pointed out that the four kinds of functional groups in the quadripolymer scale inhibitor mechanisms of synergy are the lattice distortion and the electrostatic repulsion.Because of the high price of polyethylene glycol,looking for inexpensive biodegradable containing ether bond compounds are the main research directions of the future experiments.