casing tube

常见例句

When drilling starts, the reamer swings out and reams the pilot-hole wide enough for the casing tube to slide down behind the drill bit assembly.
鑿巖工作開始時，偏心擴孔套沿中心導曏鑽頭鏇出，同時開始擴孔以保証套琯和鑽進系統同時前進。
The purpose of perforation is penetrating the casing tube, cement sheath and a certain depth of the formation and forming unhindered channels for oil and gas flowing into the well casing.
射孔目的就是射穿套琯、水泥環和地層內一定的深度，爲地層的油氣流入至井筒，形成一個順暢的通道。
The new system has realized the communication and control for different kinds of computers. And the production capability of seamless oil casing tube with high additional value has improved greatly.
改造後的計算機系統順利實現異種機之間的通訊和控制，大幅度提高了高附近加值無縫石油套琯的的生産能力。