In this new edition of CT&F we want to thank all the people who make our journal a reality, authors, peer reviewers, editorial group, and journal committee. I wish you a merry Christmas and a Happy New Year for all of you and your cherished beings.
In this edition, there are two papers related to the oil and gas industry about the effect of EOR additives used in EOR on surface operations and the simulation of Temperature Distribution In Heavy Oil Reservoirs by electromagnetic heating.
One article analyses the technical-economic feasibility of using fuel-cell hybrid electric buses in Istanbul, showing the benefits of this technology versus other ones.
Another article evaluates the situation and perspectives of geothermal energy in Mexico where there are five plants in operation today and a great potential exists to be developed.
In another work, the authors present an operations research model to optimize the supply chain of the gas business of Ecopetrol considering the priorities mandated by the Colombian government.
Finally, two papers are related to applied research concerning materials. One is about the analysis of erosion in turbine blades caused by solid particles, and another is about the fatigue characteristics of key welds of module rig derricks.
Luis Javier Hoyos