... well-head 井口 ; 水源 ; 井口水源吸油井管 ; 吸油井管 well-head pressure 井头压 well-head fire 油井火灾 ...
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矿井通风静压头 mine static head
矿井通风兑压头 mine total head
关井压头 shut off head
矿井通风总压头 [矿业] mine total head
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在压裂作业期间装在防喷器上的装置。压裂液和支撑剂在压力下被泵入压裂头，并沿井向下流动。
The device that is attached to the blowout preventers during a frac job. Fluid and propping agent are pumped under pressure into the frac head and down the well.
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