Numerical modeling for drilling fluid invasion into hydrate-bearing sediments and effects of permeability

• Published in: Journal of Natural Gas Science and Engineering
• Main Authors: Huang, Tianjia, Zhang, Yu, Li, Gang, Li, Xiaosen, Chen, Zhaoyang
• Format: Report
• Language: English
• Published: ELSEVIER SCI LTD 2020
• Subjects: Natural gas hydrate; Drilling fluid invasion; Hydrate dissociation; Secondary hydrate; Permeability; SEA-WATER SOLUTIONS; GAS-HYDRATE; METHANE-HYDRATE; SHENHU AREA; RELATIVE PERMEABILITY; WELLBORE INSTABILITY; PHYSICAL-PROPERTIES; STABILITY; DISSOCIATION; SATURATION; Energy & Fuels; Engineering; Chemical; Corey; Methane hydrate
• Online Access: http://ir.giec.ac.cn/handle/344007/26712; http://ir.giec.ac.cn/handle/344007/26713; https://doi.org/10.1016/j.jngse.2020.103239

Drilling fluid invasion into hydrate-bearing sediments could induce hydrate dissociation and complicate heat and mass transfer around wellbore, and further affect mechanical strength of hydrate-bearing sediments and accurateness of wellbore logging interpretations. In this study, a cylindrical numer...