TITLE:
Daqing Oilfield Liquid Phase Underbalanced Drilling Improving Drilling Speed Evaluation Method
AUTHORS:
Shibin Li, Penghao Wang, Ligang Zhang
KEYWORDS:
Liquid Phase under Balanced Drilling, Evaluation, Improving Drilling Speed, Multiple
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.3 No.1,
January
14,
2015
ABSTRACT: 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.