PROSPECTING PAPERS AND PATENTS OF GAS LIFT VALVES TECHNOLOGY

Between the phases of oil exploration and production, there is this transfer through natural or artificial elevation method. When method natural, pressure in reservoir sufficiently high fluids it can emerge to surface, but when insufficient, do not reach surface without use lifting methods. Among struggles be solved by engineering, optimization geometry lift gas valves (VGL) sealing material. In context, article presents prospecting papers patents related technological advances VGL published last five years (2016 2020) as a research contribution, identification solutions regarding aforementioned optimization. The ScienceDirect, Scopus, CAPES Periodical Portal, Web Science databases were used, patent search database European Patent Office (EPO), Espacenet. results showed that number area low, showing have been more publications on subject three years. addition, China United States America are countries with highest granted surveyed, two North American inventors greatest inventions.