Assessment of the Energy Efficiency of Cyclic High-Pressure Reagent Injection Systems Compared with Continuous-Operation Plunger Pumps

Ilnar Iakhin

automation, corrosion inhibitor, cyclic dosing, energy efficiency, plunger pump

The article presents a comparative assessment of the energy efficiency of cyclic high-pressure reagent injection systems and continuous-operation plunger pumps used for anticorrosion protection of oil and gas well equipment under high pressure, elevated temperature, and chemically aggressive multiphase media. The relevance of the study is determined by the need to solve simultaneously two interrelated tasks: maintaining a stable protective inhibitor film on the metal surface and reducing energy, material, and operating costs associated with reagent dosing. The aim of the work is to provide scientific and techno-economic substantiation of the advantages of cyclic dosing over traditional continuous and periodic injection schemes. The scientific novelty of the article lies in the integrated comparison of three technological approaches based on operational, economic, and physicochemical parameters, as well as in the interpretation of intermittent injection efficiency in terms of adsorption kinetics and the film lifetime effect. It has been established that cyclic systems maintain anticorrosion efficiency at 94% while reducing commercial inhibitor consumption by 73.6%, decreasing energy consumption, lowering pump equipment wear, and diminishing total operating costs. It is shown that switching pumps to a short-time, repeated-duty operating mode using hydraulic accumulators and intelligent control results in a more rational and technologically stable reagent injection regime. The article will be useful to researchers, oil and gas engineers, specialists in corrosion protection, automation, and energy-efficient technologies for field infrastructure.

Received: 09 Apr 2026, Received in revised form: 06 May 2026, Accepted: 10 May 2026, Available online: 14 May 2026

10.22161/ijaers.135.2