Balance weight set free fall emergency braking device, which can realize auto control load loss protection, when the wellhead end accidental loss of load, balance weight free fall.
平衡重设置自由落体紧急制动装置，可实现井口端意外失载后平衡重自由落体坠落不能人控，却能自控失载保护的万无一失。
The well support division makes electric submersible pumps, wellhead pressure control systems and information logging systems.
油井支持部门能制造电动潜水泵，水源压力控制系统和信息记录系统。
The base of the injector head is secured to the wellhead pressure-control equipment by the stripper assembly mounting system.
注入头的底部由环状橡胶芯子固定系统固定于井口压力控制设备。
The wellhead high pressure wireline control system can conduct close-in tests without bleeding off fluid and pressure, and keeping normal subsurface water injection.
高压井口电缆密封控制系统可在不泄流、不放压，维持井内正常注水条件下进行密闭测试。
Tube of shape Can transfer throttle chief be used for Choke and Kill Maniflod , Control oil gas wellhead In fluid pressure use.
筒形可调节流阀主要用于节流压井管汇，控制井内流体套压用。
Tube of shape Can transfer throttle chief be used for Choke and Kill Maniflod , Control oil gas wellhead In fluid pressure use.
筒形可调节流阀主要用于节流压井管汇，控制井内流体套压用。
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