Annular pressure loss 环空泵压损失
annular pressure chamber 环形压力箱
Check annular pressure 检查环形空间压力
annular pressure test 环形空间试压
annular pressure gradient 环空压力梯度
Annular pressure suture method 环形加压缝合法
Samplers can be actuated simultaneously or selectively using surface commands via annular pressure.
可以在地面通过环空压力下达指令，以便同时或选择性地触发取样器。
It can measure drilling engineering parameter, such as drilling pressure, torque, side pressure and annular pressure etc.
钻压、扭矩、侧向力、环空压力等钻井工程参数可以随钻进行测试。
Downhole annular pressure is a key parameter. Conventional pressure loss calculation method is not applicable to a slin - hole.
井底环空压力是小井眼钻井的关键参数，通常的压力降计算方法对小井眼不适用。
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