释义 |
ubdBNC²³⁶²¹³⁺¹ 基本例句 Universal Business Directories 《通用商务目录》 How to select the proper different pressure of UBD in the horizontal part of the well was discussed in this paper, as well the design of foam parameter. 着重论述了水平井段欠平衡钻井负压差值的选择依据,以及泡沫流体各参数的设计方法。 chemyq The difference of well control between UBD and conventional drilling; 欠平衡钻井井控与常规钻井井控差异及施工原则; cnki The study work of wellbore stability and capacity to carry rock cutting during liquid UBD and gas drilling is developed. 开展了液相欠平衡及气体钻井井壁稳定及井筒携岩能力研究。 lib.swpu.edu.cn Gas drilling fluid is often used in UBD in low pressure formation. 在低压储层进行欠平衡钻井时常选用气体型低密度流体。 chemyq |