In this article shown a workflow for developing own prototype of software program for well cost estimation at stages “Evaluation” and “Selection” of oil project in Gazprom Neft PJSC. According to the concept of prototype software development it was divided two basic parts in well cost estimations, they are technical and cost estimation. In technical part of prototype are included model of physical indicators calculation, database of general and typical technical designs and database of actual drilled wells on company’s assets. Software prototype provides different options of calculation depending on volume and quality of initial data for the possibility of its use on different project stages. Software prototype was developed based on VBA in Excel and technical specification for programming. In close collaboration of software developer and technical specialists modules was developed and programmed which are allow to predict physical volumes of well construction. Cost estimation part includes cooperation with cost database and algorithm of service rates determination. As a result estimation is formed with well cost forecast based on determined and specific parameters in technical modules. Today it is tracked ability to use this algorithm in brownfields for business planning of current activities for one to five years. Using a developed tool ‘limit in well cost’ was calculated. The modeled result shown that actual minimum cost of well is higher than ‘limit in well cos’.
References
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