Safety time calculation method for “Hang's Mudding-off” operation under circulation loss of returns
The so-called “Hang's Mudding-off” technique is critical to keeping the dynamic pressure balance and guaranteeing the sufficient safe operation time in wellbore. However, for lack of dynamic mathematical model analysis methods for reflecting the changes of annulus liquid level in the borehole d...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co., Ltd.
2016-11-01
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| Series: | Natural Gas Industry B |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352854017300153 |