Section One: Drilling Techniques Tailored to Meet the Challenges 1. Natural gas drilling: overview of sustainability challenges 2. Deep and horizontal drilling technologies for natural gas 3. Thermo-pressure coupling distribution of casing and well integrity analysis of deep-water wells Section Two: Wellbore Planning and Control 4. Well control and kick tolerance in extended reach drilling 5. Dynamics of a drill-string-riser coupling system 6. Real-time monitoring and optimization during drilling operations 7. Multiphase flow and pressure control in wellbore during underbalanced drilling operations 8. Deviated well trajectory optimization and well collision avoidance 9. Hole cleaning technology for unconventional gas horizontal wells Section Three: Drilling Fluids and Environmental Impacts 10. The environmental and economic influence of shale gas exploitation in China 11. Gas-aphron drilling fluids enhanced with silica nanoparticles and biosurfactant 12. Characteristics and applications of foam drilling fluids for coalbed methane Section Four: Drilling for Unconventional Gas Resources 13. Decreasing coalbed methane formation damage using clay free and silica nanoparticles stabilized micro-foamed drilling fluid 14. Drilling of gas hydrate reservoirs: recent technological developments and solutions to drilling problems 15. Drilling techniques applicable for shale-gas formations Section Five: Drilling Innovations 16. Innovations in drilling and well construction technologies in gas reservoir drilling 17. Progress on drilling innovations for natural gas hydrate 18. Drilling techniques specific to underground gas storage and carbon capture reservoirs