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Factors affecting the drilling speed are very complex, such as formation factor layers lithology, depth, porosity and reservoir pressure, fluid density, drilling parameters bit pressure and speed, drill types, etc. Although liquid phase underbalanced drilling technology is to increase the penetration rate and shorten the drilling cycle, there is no evaluation model currently, so we cannot evaluate which factors can have a greater impact on speed. Based on the establishment of equivalent density and improvement of ROP Rate of Penetration calculation model, this paper is about the application of underbalanced drilling technology to improve drilling speed multiple sizes.

KEYWORDS

Liquid Phase under Balanced Drilling, Evaluation, Improving Drilling Speed, Multiple

Cite this paper

Li, S. , Wang, P. and Zhang, L. 2015 Daqing Oilfield Liquid Phase Underbalanced Drilling Improving Drilling Speed Evaluation Method. Journal of Minerals and Materials Characterization and Engineering, 3, 37-40. doi: 10.4236-jmmce.2015.31005.





Autor: Shibin Li, Penghao Wang, Ligang Zhang

Fuente: http://www.scirp.org/



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