Ufa State Petroleum Technological University

Performance of Concrete with Mechanochemically Activated Rice Husk Ash-Based Organomineral Modifiers

This study evaluates a wet-activated multicomponent organomineral modifier for sustainable concrete. The modifier was produced by co-grinding Portland cement and rice husk ash (RHA) in the presence of Sika® ViscoCrete®-20HE and was subsequently combined with polypropylene fibers....

Artificial-Lift System Control: A Reduced-Order Transient Model for Real-Time Predictive Control of Electrical Submersible Pump Wells

Unstable well operations, driven by reservoir depletion, high gas–oil ratios, unstable inflow, and surface network interactions, have become a major challenge in modern production — especially in Western Siberian fields — causing flow instabilities and production losses. While nu...