While underbalance drilling spreads greatly, rotating blowout preventer, as a kind of high technical product, is the crucial equipment to control well pressure.
国内欠平衡钻井普遍实施,要用到的旋转防喷器是关键设备,技术含高。
While underbalance drilling spreads greatly, rotating blowout preventer, as a kind of high technical product, is the crucial equipment to control well pressure.
国内欠平衡钻井普遍实施,要用到的旋转防喷器是关键设备,技术含高。
A strainer is recommended to be installed ahead of the backflow preventer to prevent the fouling of the check assembly and resulting spillage from the valve during repressurization.
建议在防回流阀前安装一个过滤器,防止由于止回阀总成受到污染而导致这种阀门在再增压期间产生泄漏或溢出。
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