低压气井修井暂堵隔离冻胶与性能

摘要

In the low-pressure gas wells workover operations, the use of the gas reservoir production using temporary blocking barrier fluid approach to control fluid and producing gas reservoir off to stop killing fluid to leak into the gas reservoir damage.Water-soluble polymer, emulsion-type metal ion crosslinking agents, reinforcing agents, Nano sealant and other adjuvants, developed a polymer liquid separation and isolation jelly.And isolation jelly compressive strength, air tightness, gel breaking performance was evaluated.%在低压气井修井作业中,采用在产气层使用暂堵隔离液的方法将压井液与产气层隔开,以防止压井液漏入对气层造成伤害;采用水溶性聚合物、乳液型金属离子交联剂、增强剂、纳米密封剂等辅助剂,研制出聚合物隔离液及隔离冻胶;并对隔离冻胶的耐压强度、气密性、破胶性能进行了评价.