OPTIMIZATION IN THE RECONSTRUCTION OF THE RESERVOIR PRESSURE MAINTENANCE SYSTEM (RPMS) USING SIMULATION MODELING

Abstract

The paper considers the optimization of reservoir pressure maintenance systems using simulation methods. The main goal is to consider the impact of various technological indicators on capital and operating costs. The initial parameters for calculating optimization options are the cost of electricity and the density of the injected water; fiberglass pipes (SPT-80, SPT -100) are used as pipes, the wall roughness of which is assumed to be 0.015 mm.The costs of capital construction during the reconstruction of pipelines and the pumping unit, as well as operating costs for overcoming hydraulic losses in pipelines, in well piping and for energy losses of pumping units are calculated. When calculating, special attention is paid to losses that make up 90% of the total power losses in the pressure maintenance system, such as power losses associated with imperfect pump design; power losses for choke of injection wells; losses of electricity for the operation of pipelines.The results are presented on the example of a small cluster pumping station. 4 options for optimizing calculated in terms of capital and operating costs for three main points are presented: pumping equipment, pipelines and wells. To assess the impact on production, a reservoir model was built using the material balance method. It should be noted that synthetic data were used for this case, because in reality, this CPS is just a part of the pressure maintenance system.When optimizing 20 facilities, the following results were obtained: on average, over 20 years, the difference in operating and capital costs between the basic reconstruction option and the most profitable reconstruction option with optimization is about 350 million rubles.