... . We found that, for multi-fractured horizontal wells, at least four distinct flow regimes should ultimately appear in practice and are related to depth-of-investigation considerations: (1) an early ramp-up in production; (2) a transient flow regime which can last for years with essentially constant...

... ooip case upstream oil & gas resource in place estimate traditional method engineer boundary lfp ooip pvt measurement fluid dynamics transient flow ooip workflow numerical model flowing pressure actual well URTeC: 2967 Numerically Enhanced RTA Workflow - Improving Estimation...

... practical problems: (1) a majority of the wells were still in transient flow, which means that a unique fit on the type curve is not possible, and (2) our scaling procedure fails when fracture stage spacing is unknown, as it often is with publicly available data. However, for wells still in transient flow...

..., and because of the time value of money. Therefore, production analysis should answer the questions, "how much will this well produce?" and "how quickly?" Artificial Intelligence complex reservoir machine learning Upstream Oil & Gas transient flow shale gas Haynesville hindcast prediction...

... Summary In this paper, we introduce a novel semi-analytical production predictive tool for tight reservoirs. Due to the ultra-low permeabilities observed in unconventional resources such as shales, transient flow has become dominant during most of the productive life of unconventional wells...

... the rigor and accuracy of these new relations and analysis methods. Upstream Oil & Gas flow problem transient flow assumption initial pressure average reservoir pressure drillstem/well testing reservoir pressure investigation Drillstem Testing compressibility Bakken linear flow...