The paper provides a new hydrophobic association polymer fracturing fluid gelatinizer. The hydrophobic association which is the synthesis of three component copolymer complexes, is compounded by micellar copolymerizat...The paper provides a new hydrophobic association polymer fracturing fluid gelatinizer. The hydrophobic association which is the synthesis of three component copolymer complexes, is compounded by micellar copolymerization method. The hydrophobic association is got together through hydrophilic monomer acrylamide monomer N,N-vinyl pyrrolidone monomer with a rigid group N, and hydrophobic monomer N,N-2 dodecyl acrylamide etc. three monomers with sodium dodecyl sulfate as the emulsifier in micellar solution.展开更多
本文合成了新型疏水缔合两亲共聚物,并对其在溶液中的聚集行为和流变特性进行探究。结果表明:随着两亲单体含量的增加,共聚物表现出更低的临界缔合浓度(CAC),可形成更大聚集数的聚集体,在25℃,剪切速率170 s^(-1)下,0.5%共聚物HPAE10-1...本文合成了新型疏水缔合两亲共聚物,并对其在溶液中的聚集行为和流变特性进行探究。结果表明:随着两亲单体含量的增加,共聚物表现出更低的临界缔合浓度(CAC),可形成更大聚集数的聚集体,在25℃,剪切速率170 s^(-1)下,0.5%共聚物HPAE10-1溶液黏度达205 m Pa·s;触变实验表明疏水缔合作用形成了可逆的网状结构,这种网状结构使共聚物溶液具备了优异的黏弹性能,高频时表现出较高的储能模量和损耗模量;探索了HPAE10-1/有机锆组成的压裂液体系在天然气水合物压裂中的应用性能,发现其对不同粒径的支撑剂都具有良好的悬浮效果、有较低的滤失量,加入破胶剂后在125 min内可使压裂液黏度降低到5 m Pa·s。展开更多
以SRFG-1增稠剂和SRFC-1交联剂工业品为研究对象,采用红外光谱法(IR)和核磁共振法(1 H NMR)表征了SRFG-1增稠剂分子结构;评价了SRFG压裂液体系的耐温耐剪切性能、静态悬砂性能和破胶性能;测定了破胶液的表面张力及残渣含量。结果表明:S...以SRFG-1增稠剂和SRFC-1交联剂工业品为研究对象,采用红外光谱法(IR)和核磁共振法(1 H NMR)表征了SRFG-1增稠剂分子结构;评价了SRFG压裂液体系的耐温耐剪切性能、静态悬砂性能和破胶性能;测定了破胶液的表面张力及残渣含量。结果表明:SRFG压裂液在90℃和120℃条件下具有良好的流变性能;24h和48h内的沉降速率分别为1.2×10-4 mm/s和3.7×10-4 mm/s;在60℃,破胶剂加入量为0.04%条件下,2h即可破胶,破胶液黏度为4.87mPa·s,破胶液表面张力为27.28mN/m,破胶液残渣为46mg/L;在80℃,破胶剂加入量为0.01%条件下,1h即可破胶,破胶液黏度为3.84mPa·s,破胶液表面张力为26.5m N/m,破胶液残渣为60.3mg/L。最后将SRFG压裂液成功应用于青海民和盆地红6井和红7井,最高砂比为25%。展开更多
文摘The paper provides a new hydrophobic association polymer fracturing fluid gelatinizer. The hydrophobic association which is the synthesis of three component copolymer complexes, is compounded by micellar copolymerization method. The hydrophobic association is got together through hydrophilic monomer acrylamide monomer N,N-vinyl pyrrolidone monomer with a rigid group N, and hydrophobic monomer N,N-2 dodecyl acrylamide etc. three monomers with sodium dodecyl sulfate as the emulsifier in micellar solution.
文摘本文合成了新型疏水缔合两亲共聚物,并对其在溶液中的聚集行为和流变特性进行探究。结果表明:随着两亲单体含量的增加,共聚物表现出更低的临界缔合浓度(CAC),可形成更大聚集数的聚集体,在25℃,剪切速率170 s^(-1)下,0.5%共聚物HPAE10-1溶液黏度达205 m Pa·s;触变实验表明疏水缔合作用形成了可逆的网状结构,这种网状结构使共聚物溶液具备了优异的黏弹性能,高频时表现出较高的储能模量和损耗模量;探索了HPAE10-1/有机锆组成的压裂液体系在天然气水合物压裂中的应用性能,发现其对不同粒径的支撑剂都具有良好的悬浮效果、有较低的滤失量,加入破胶剂后在125 min内可使压裂液黏度降低到5 m Pa·s。