ADVANCE TECHNIQUES FOR PRODUCTION MEASUREMENT IN PARTIALLY COMPLETED WELLS

Partially completed wells pose a significant challenge in petroleum engineering because limited reservoir contact and incomplete perforation intervals complicate precise production measurement. Traditional evaluation techniques, primarily designed for fully completed wells, frequently fail to fully capture the effects of additional pressure losses, non-radial flow patterns, and the combined impact of formation damage and partial penetration. Building upon foundational concepts of skin factor and flow efficiency, recent developments integrate pressure transient testing, production logging tools, inflow performance relationships (IPR), and numerical reservoir simulation to enhance the reliability of production forecasts. Advanced methodologies—including pseudopressure distribution modeling under non-Darcy flow, coupled wellbore–reservoir simulations, and stress-validated inflow models—offer improved accuracy in predicting flow distribution, pressure profiles, and overall well productivity. This study underscores the value of merging conventional well test interpretation with modern computational approaches and digital monitoring systems. The results demonstrate that contemporary measurement and modeling strategies not only improve production estimation but also provide essential guidance for completion design and optimization in complex oil and gas reservoirs. Keywords: Partially completed wells, production measurement, skin factor, inflow performance relationship (IPR), pressure transient analysis, pseudopressure modeling, reservoir simulation, production logging, non-Darcy flow.