Weighing packer sealing 封箱称重打包机
packer sealing element 封隔器胶筒
real-time packer sealing detecting 在线验封
hydraulic self-sealing packer 水力自封式封隔器
Sealing weighing packer 封箱称重打包机
sealing packer 堵漏包
strong sealing packer 强密封自控式注水管柱
self-test sealing packer 自验封封隔器
The packer sealing condition is valuated according to the variation of flow rate and pressure below injection flow regulator with injection pressure at the wellhead.
该技术是利用密封段密封配水器中心通道，通过改变井口注水压力来了解配水器以下的流量和压力的变化情况，判断封隔器密封状况。
Provide pin to avoid sealing at midway and protect seal part of packer, enhanced reliability of plugging string.
设计有防中途坐封的销钉，保护封隔器的密封件，提高了封堵管柱的可靠性。
The indoor test and field application show: Comparing with regular packer, it has such advantages as simple setting, reliable sealing, convenient fishing, smooth unfreezing.
室内试验及现场应用表明，与常规液压封隔器相比，它具有坐封容易、密封可靠、打捞方便、解卡顺利等优点。
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