Przygotowanie strategii prowadzenia prac naprawczych i rekonstrukcyjnych w odwiertach naftowych i gazowych

Abstract

The repair and restoration work implemented in inactive well stocks has led to the resolution of clustering issues based on their purpose. It has been determined that in case of clusters of accident-prone wells, the implementation of repair and restoration works and their return to the operational fund, must be carried out based on economic and technical efficiency. The corresponding analysis revealed that clusters characterizing the accident rates include issues with downhole pipes, downhole motors, tools and devices, packers, bottom hole drill pipes, cables, ropes, wires, and others types of accidents. This paper presents the accumulated results of realized RRW (repair restoration works) based on field experience for formalization and automation in developing decision-making technologies and selecting accident elimination strategy in appropriate field conditions. Various technologies have been developed for the elimination process, using appropriate equipment. Repair and restoration work for corresponding codes is proposed based on field statistical information. The economic feasibility of the obtained results and their application are classified on the basis of boundary conditions defined by developed logical stages. The logical stages are drawn up using information about field parameters, including well conditions, the location of the accident object in the well, realized technology, and appropriate technical means. As a result of the analysis of SOCAR (State Oil Company of Azerbaijan Republic) fund of accident-prone wells, 24 possible options for the implementation of RRW have been identified for the aforementioned clusters. Lists of the existing tool park, functional design parameters, and technological modes necessary for each accident cluster have been determined to implement decision-making technologies.