Deployment of Well Interventions Selection digital information system at NIS a.d. Novi Sad facilities

Abstract

Seeking to optimize the development of integrated well interventions programs for NIS a.d. Novi Sad facilities, trial deployment of Well Interventions Selection digital information system was initiated in 2018. The project is considered innovative due to the development of well interventions selection algorithms and criteria integrated into the Well Interventions Selection digital information system (DIS). The Well Interventions Selection DIS is a web-interface based system where users can work in online mode; this approach enables a higher-quality planning of well intervention activities, since all computations, data exchange and retention of well intervention decisions history are handled within a single system. The trials involved computations to select well intervention activities at 8 first-stage fields of NIS a.d. Novi Sad (Velebit, Jermenovci, Elemir, Kikinda Zapad X, Kasidol, Karadordevo, Turija-Sever and Idjos). NIS a.d. Novi Sad prepared a long list with 53 candidates for infill drilling and 40 candidates for fracking jobs. These computations resulted in preparation of a potential well interventions program, assessment of well interventions efficiency and identification of related risks. Out of the proposed candidates, two infill wells have been drilled and one fracking job completed to this date. The selection algorithm results are found to be acceptable, and the technique has been cleared for further elaboration. Employment of information technologies in the development of well interventions programs helped upgrade the culture of engineering approach, computerize the processes of initial selection of wells subject to intervention, promptly acquire computation results for large-stock fields, improve the quality of selection of wells subject to intervention, and make the process informative thanks to real-time operation.