Application of pneumatic clip for oil drilling rig;
新型气动卡瓦体的工作高度低,可自动刮泥,并具有安装操作简便、自动化程度高、悬挂能力大等特点。
The tooth marks depths′s finite element analysis of power slip in deep well drilling
深井钻井中动力卡瓦对钻杆造成的牙痕深度的有限元分析
Design and Application of Multifunctional Drill Stems Pneumatic Clip for Oil Drilling Rig
石油钻机多功能钻杆气动卡瓦的设计及应用
Model QW50A Air Operated Slips is a wellhead tools. Mainly used to clipping tubing and drilling rod which raise or put down at well repairing service operation.
QW50A气动卡瓦是油田修井作业时，安装在井口上用于卡紧油管及类似管柱的一种工具。
Application of pneumatic clip for oil drilling rig
新型气动钻杆卡瓦在钻井生产中的应用
REWAKA, Denis DANGUE
德尼·当格-雷瓦卡
Research on the Dynamic Characteristic of Works for Santiago Calatrava;
圣地亚哥·卡拉塔瓦作品的动态特征研究
air lift rod transfer elevator
气动抽油杆运移吊卡
Watt claimed to be the inventor of the steam engine.
瓦特自称为蒸气发动机的发明者。
The tooth marks depths′s finite element analysis of power slip in deep well drilling
深井钻井中动力卡瓦对钻杆造成的牙痕深度的有限元分析
Watt's engine also used hot steam, not cold air, to force down the piston.
瓦特的发动机也是利用热空气而不是冷空气带动活塞。
kovalevskaya's top
科瓦列夫斯卡亚的陀螺
carbide-tipped slip
硬质合金牙尖的卡瓦
lead seal single slip liner hanger
铅封单卡瓦衬管悬挂器
slip socket bowl
卡瓦打捞筒的锥形座
overshot with bow
带碗形卡瓦的打捞 筒
slip-weld hanger
卡瓦-焊接式悬挂器
slip ram preventer
带卡瓦的闸板式防喷器
Chiricahua National Monument
奇里卡瓦国家保护区
an air [a gas] turbine
空气[瓦斯]涡轮机.