Abstract: To further improve the drilling efficiency and reduce the drilling cost, the MPD equipment with single-channel has been developed.
摘要：为进一步提高钻井效率和降低钻井成本，研制了单通道控压钻井装备。
Correctly recognizing the differential pressure sticking is of great significance to reduce complex accidents of borehole, increase drilling speed and reduce the drilling cost.
正确认识压差卡钻，对于减少井下复杂事故，提高钻井速度，降低钻井成本具有十分重要的意义。
Using this theory, the cost controlling method of drilling and completion projects can be regulated so as to reduce the project cost and make work and management more efficiency.
这种思路的提出，可以规范钻完井项目成本控制方法，为项目降低成本、提高工作效率和管理水平具有一定的指导性。
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