Due to the poor salt tolerance and heat resistance of the partially hydrolyzed acryl amide in the reservoir of high temperature and high inorganic salt,and the poor ability of shear,the hydrophobically associating ter...Due to the poor salt tolerance and heat resistance of the partially hydrolyzed acryl amide in the reservoir of high temperature and high inorganic salt,and the poor ability of shear,the hydrophobically associating terpolymers acrylamide\|hexadecyl ally ammonium chloride\|2\|acrylamino\|2\|metyl propane sulfuric acid (AM\|C 16 DMAAC\|AMPS) is prepared by micelle polymerization with the nonionic monomer\|AM,the anionic monomer\|AMPS,the cationic monomer\|C 16 DMAAC,It is investigated that the effect of the content of the hydrophobic monomer,anionic monomer,cationic monomer,reaction temperature and the concentration of the inorganic salt and the surfactant on the viscosity of the hydrophobically associating aqueous soluble terpolymers in brine.The results show that the aqueous soluble hydrophobically associating terpolymers(1000?mg/L) have good viscofication effect in brine(20000?mg/L),when the content of the hydrophobic monomer is 1\^2%,and of the anionic monomer is 30%,the hydrophobically associating terpolymers can meet the need of polymer flooding in reservoir of the high concentration inorganic salt.展开更多
通过氧化还原体系引发AM、DMDAAC、AMPS三元共聚,再用Na OH在85℃下水解三元共聚物,制得水解AM/DMDAAC/AMPS聚合物。通过IR、NMR表征聚合物的分子结构,用TGA测试聚合物热稳定性。水解度的增加提高了产物热稳定性,并改善了钻井液的表观...通过氧化还原体系引发AM、DMDAAC、AMPS三元共聚,再用Na OH在85℃下水解三元共聚物,制得水解AM/DMDAAC/AMPS聚合物。通过IR、NMR表征聚合物的分子结构,用TGA测试聚合物热稳定性。水解度的增加提高了产物热稳定性,并改善了钻井液的表观黏度、塑性黏度和动切力。但水解度存在最佳值,使钻井液的API、HTHP滤失量降到最低。羧基含量最优的水解产物按添加量3.5%(质量分数)配制成膨润土质量分数5%、Na Cl质量分数30%的钻井液,在200℃下热滚16 h后的API滤失量为14.0 m L,HTHP滤失量(180℃)为40.0 m L。展开更多
文摘Due to the poor salt tolerance and heat resistance of the partially hydrolyzed acryl amide in the reservoir of high temperature and high inorganic salt,and the poor ability of shear,the hydrophobically associating terpolymers acrylamide\|hexadecyl ally ammonium chloride\|2\|acrylamino\|2\|metyl propane sulfuric acid (AM\|C 16 DMAAC\|AMPS) is prepared by micelle polymerization with the nonionic monomer\|AM,the anionic monomer\|AMPS,the cationic monomer\|C 16 DMAAC,It is investigated that the effect of the content of the hydrophobic monomer,anionic monomer,cationic monomer,reaction temperature and the concentration of the inorganic salt and the surfactant on the viscosity of the hydrophobically associating aqueous soluble terpolymers in brine.The results show that the aqueous soluble hydrophobically associating terpolymers(1000?mg/L) have good viscofication effect in brine(20000?mg/L),when the content of the hydrophobic monomer is 1\^2%,and of the anionic monomer is 30%,the hydrophobically associating terpolymers can meet the need of polymer flooding in reservoir of the high concentration inorganic salt.
文摘通过氧化还原体系引发AM、DMDAAC、AMPS三元共聚,再用Na OH在85℃下水解三元共聚物,制得水解AM/DMDAAC/AMPS聚合物。通过IR、NMR表征聚合物的分子结构,用TGA测试聚合物热稳定性。水解度的增加提高了产物热稳定性,并改善了钻井液的表观黏度、塑性黏度和动切力。但水解度存在最佳值,使钻井液的API、HTHP滤失量降到最低。羧基含量最优的水解产物按添加量3.5%(质量分数)配制成膨润土质量分数5%、Na Cl质量分数30%的钻井液,在200℃下热滚16 h后的API滤失量为14.0 m L,HTHP滤失量(180℃)为40.0 m L。
