Abstract: A method for usage based rental (UBR) of an industrial or engineering application includes providing an application with instructions executable on a computer system comprising a processor; providing multiple usage based rental (UBR) options for the application, each usage based rental (UBR) option comprising an intermitted usage to fixed and continuous time duration ratio R between 0 (zero) and 1 (one); and selecting a usage based rental (UBR) option from the multiple usage based rental (UBR) options, wherein the application is operable according to the selected ratio R governing the usage based rental (UBR) option. Further, a usage based rental (UBR) management system is disclosed.

Abstract: A method is disclosed for analyzing an oil and gas production project with a computer system. Using a computer program, a user inputs characteristics of systems for the project and inputs characteristics of the expected production of the project, such as production life (years) and the production rate of the project. Based on the characteristics, the program generates a plurality of projected case profiles, each of which defines characteristics of the systems for a period of the production life of the project. A controlling case is then created using information from the plurality of case profiles. In the controlling case, each of the systems is analyzed to determine in which profile the system has the greatest cost, weight, area, or other criterion. From the analysis, characteristics of the systems are generated for the project that best meet the expected production over the entire production life of the project.