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Keywords: nbu
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Proceedings Papers

Paper presented at the SPE/IADC Middle East Drilling Technology Conference and Exhibition, May 25–27, 2021
Paper Number: SPE-202179-MS
... allow an influx or a kick from exposed formations or sloughing and even wellbore collapse in wells with hole stability problems. Figure 3 NBU Maintains Back Pressure in Narrow Drilling Window The information presented in this case comes from drilling a horizontal well in Alberta, Canada...

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