Tight-Gas-Sand Permeability Estimation From Nuclear-Magnetic-Resonance (NMR) Logs Based on the Hydraulic-Flow-Unit (HFU) Approach

Abstract

Liang Xiao and Chang-chun Zou, China University of Geosciences and School of Geophysics and Information Technology, Beijing, and Ministry of Education; Zhi-qiang Mao, State Key Laboratory of Petroleum Resources and Prospecting and Beijing City Key Laboratory of Earth Prospecting and Information Technology, China University of Petroleum; Xiao-peng Liu and Xiao-xin Hu, Geological Exploration and Development Research Institute of Geological Exploration and Development Research Institute of Chuanqing Drilling Engineering Company Limited; Yan Jin, Southwest Oil and Gas Field Branch Company, PetroChina