... straddle over year 跨年度 straddle packer 跨式双封隔器中的一个封隔器 straddle spread 中间放炮排列 ...
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Packing mechanism of WJK straddle packer is introduced and compared with traditional ones.
介绍了WJK跨隔封隔器的封隔原理，并与传统跨隔封隔器进行了对比。
This paper introduces the principle, string structure and field application of the TCP Combined Well Testing Technology with straddle packer.
论述了跨隔射孔测试联作工艺技术的原理、管柱结构和现场应用情况。
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