CAJ | 학술논문

针对低渗、特低渗透油田，在热水驱开发过程中，温度升高结垢现象加剧，导致常规的阻垢剂失效的问题。在室内通过自由基聚合方法，以水为溶剂，过硫酸铵为引发剂，以马来酸酐（MA）、丙烯酸（AA）、丙烯酰胺（AM）、2-丙烯酰胺基-2-甲基丙磺酸（AMPS）等为原料，合成出MA/AA/AM/AMPS四元共聚物阻垢剂。并分别探讨了引发剂用量、阻垢剂用量，温度控制等条件对阻垢率的影响。经红外光谱分析结果表明，该共聚物阻垢剂含有羧酸基、膦基和磺酸基等阻垢分散基团。实验结果表明，合成的产品在高温、高矿化度环境中对碳酸钙、硫酸钙阻垢效果较好，分别可达到96.74%和96.91%。在低渗、特低渗油田热水驱技术中具有较好的应用前景。
침대저삼、특저삼투유전，재열수구개발과정중，온도승고결구현상가극，도치상규적조구제실효적문제。재실내통과자유기취합방법，이수위용제，과류산안위인발제，이마래산항（MA）、병희산（AA）、병희선알（AM）、2-병희선알기-2-갑기병광산（AMPS）등위원료，합성출MA/AA/AM/AMPS사원공취물조구제。병분별탐토료인발제용량、조구제용량，온도공제등조건대조구솔적영향。경홍외광보분석결과표명，해공취물조구제함유최산기、련기화광산기등조구분산기단。실험결과표명，합성적산품재고온、고광화도배경중대탄산개、류산개조구효과교호，분별가체도96.74%화96.91%。재저삼、특저삼유전열수구기술중구유교호적응용전경。
In the development process of hot water flooding in low and ultra-low permeability oilfields, as the temperature increas-ing, scale deposit aggravates. Accordingly, conventional scale inhibitor loses effectiveness. Aiming at this problem, free radical po-lymerization method was taken indoors. Taking water as solvent, ammonium persulfate as initiator, and maleic anhydride (MA), acrylic acid (AA), acrylamide (AM), 2-acrylamide-2-methylpropanesulfonic acid (AMPS) as raw material, tetra-polymer scale in-hibitor of MA/AA/AM/AMPS was created. Meanwhile, this paper respectively discussed initiator amounts, scale inhibitor amounts, reaction temperature conditions, and their effects on scale inhibition rate. The result of infrared spectroscopic analysis shows that copolymer inhibitor contains scale inhibition scattered groups, such as carboxyl, phosphonyl and suchfunctional anionic groups. The research shows that synthetic products have good scale inhibition effects on calcium carbonate (CaCO 3) and calcium sulphate (CaS04) in high temperature and hypersalinity environment. The percentage of scale inhibition effects can reach to 96.74 % for CaCO3 and 96.91%for CaS04. In low and ultra-low permeability oilfield, these synthetic products have good applications in hot wa-ter flooding technology.