Grout replacing of slop or water to inflatable packed external packer eliminates the hidden trouble of packer invalidation, which is equal to make a permanence firmly clapboard among layers.

• 其技术方案是用水泥浆替代泥浆或者水来胀封管外封隔器就消除了封隔器失效的隐患，相当于在层与层之间打上了永久坚固的隔板。