CAJ | 학술논문

鉴于目前不压井作业中存在的诸多问题，利用改性淀粉冻胶的优越性，结合实际生产要求，研究了一种新型冻胶材料。室内实验表明，引发剂浓度、丙烯酰胺与淀粉投料比、反应温度、体系pH值等因素影响改性淀粉冻胶成胶时间和胶体黏度。优化出氧化/交联改性淀粉冻胶质量比配方为3.6%淀粉+0.03%过硫酸铵+14.5%丙烯酰胺+7.3%交联剂A+4.7%交联剂B。冻胶在pH值8~12范围内，成胶时间在1 h内可控调节。室内评价冻胶适用温度60~120℃，黏度可高于200×104 mPa·s。
감우목전불압정작업중존재적제다문제，이용개성정분동효적우월성，결합실제생산요구，연구료일충신형동효재료。실내실험표명，인발제농도、병희선알여정분투료비、반응온도、체계pH치등인소영향개성정분동효성효시간화효체점도。우화출양화/교련개성정분동효질량비배방위3.6%정분+0.03%과류산안+14.5%병희선알+7.3%교련제A+4.7%교련제B。동효재pH치8~12범위내，성효시간재1 h내가공조절。실내평개동효괄용온도60~120℃，점도가고우200×104 mPa·s。
In view of the many troubles in the present snubbing services, a new type of gel material was developed using the merit of modiifed starch gel and in combination with the actual need. Lab experiments show that the initiator concentration, charge ratio of acrylamide and starch, reacting temperature and pH of the system affect the gelation time of modiifed starch gel and gel viscosity. The optimized mass ratio formula of oxidized/crosslinking modiifed starch gel is 3.6% starch, 0.03% ammonium persulfate, 14.5%acrylamide, 7.3%crosslinker A and 4.7%crosslinker B. When pH of the gel is within 8 to 12, the gelation time is adjustable within an hour. Lab evaluation shows that the applicable temperatures for the gel are 60℃to 120℃and its viscosity may be higher than 200×104 mPa·s.