Inherent Properties on Particle Size Distribution of Petroleum Rock Drill-Cuttings
The particle size distribution and shape characteristics of rock cuttings are the most important parameters to petroleum drilling engineering. The samples of rock drill-cuttings are collected from 7 wells with the depths of 0～3500 m in Liaohe Oilfield of China. The particle size distribution laws of these rock samples with the average diameter over 74 μm are analyzed. The result shows that the drill cuttings feature obvious sheet shape and the size distribution curve of the particles is mainly related to the formation rocks and drilling bits. While drilling at the well depths of between 0 and 2000m by the cone bits, particle size distribution of drill cuttings has a form of approximately power function, the probability particle diameter being 8.50 ～ 9.27 mm. Drilling at the depths of between 2000 and 2800 m by the cone bits, the size distribution of cuttings has a form of nearly X2 function, the probability particle diameter being 3.04 ～ 4.67 mm. Drilling at the depths under 2800m by PDC bits, the size distribution has a form of nearly the Rayleigh distribution, the probability rock diameter being 0.91～ 0.94 mm.
Particle size distribution Probability diameter Sheet particle Drill cuttings Inherent properties
Yi Xianzhong Zhang Debiao Qi Haiying Wei Huiming Liu Xingcheng
School of Mechanical Engineering, Yangtze University, China No.1, NanhuanRd., Jingzhou, Hubei, 43402 Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Tsinghua Universi No.1 Drilling Company, Great Wall Drilling Company (GWDC), National Petroleum Corporation (CNPC), Li
国际会议
沈阳
英文
240-244
2009-08-27（万方平台首次上网日期，不代表论文的发表时间）