Multiphase Gas-Condensate Metering Tests with Individual Fluid Properties Model

摘要

Gas-condensate production studies are run to determine the paramount data for gas and condensate reserve evaluations, field characterizations and facilities installations. Currently, there is enough number of workflows, rules, and recommendations to conduct gas-condensate metering tests (GCMT) with data processing and results presenting, however, all such documents imply the use of traditional measurement instruments, which are the conventional separators. Over the last decade, multiphase flowmeters have become widely known and they provide non-separating measurements of all produced phases a single measuring point. The paper presents a unique GCMT workflow using a Vx multiphase metering technology, which considers the use of individual fluid properties models (or PVT models), designed for accurate flow rate measurements in gas condensate wells, when permanent measurements are arranged for individual or a group of gas condensate wells. The workflow implementation has allowed creating a comprehensive alternative to traditional separation technologies for conducting GCMTs in gas condensate wells of Achimov deposits in Western Siberia.