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Automatic model-based control scheme for stabilizing pressure during dual-gradient drilling

✍ Scribed by Jing Zhou; Gerhard Nygaard

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
858 KB
Volume
21
Category
Article
ISSN
0959-1524

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Nonlinear model predictive control schem
Nonlinear model predictive control scheme for stabilizing annulus pressure during oil well drilling
✍ Gerhard Nygaard; Geir NΓ¦vdal πŸ“‚ Article πŸ“… 2006 πŸ› Elsevier Science 🌐 English βš– 454 KB

This paper presents a nonlinear model predictive control scheme for stabilizing the well pressure during oil well drilling. While drilling, a fluid is pumped through the drill string and the drill bit, and is returning through the annulus between the drilled well and the drill string. Varying reserv