Multiphase Flows in the Upstream: A Comprehensive Overview
This content delves into the complexities of multiphase flows in the upstream sector, covering topics such as reservoir management, drilling, subsurface imaging, and reservoir modeling. It explores the challenges of multi-scale phenomena, multi-physics interactions, uncertainty, and inversion in the field, providing insights into processes like Darcy flow, turbulent flow, sediment gravity flows, and hydraulic fracturing. The content emphasizes the importance of understanding geologic formations and predicting reservoir rock properties for effective field development and production operations.
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Presentation Transcript
Multiphase Flows in the Upstream Xiao-Hui Wu ExxonMobil Upstream Research Company August 8, 2018
The Upstream Decision Under Uncertainty Reservoir Management Development Planning & Execution Top Side Facilities Drilling & Subsurface 2
The Upstream Subsurface Decision Support BHT (act & ref) 1 8 0 Reservoir Characterization Well Test 1 6 0 Subsurface Imaging BHP (act & ref) 3 8 0 0 3 6 0 0 9 0 0 0 7 0 8 0 9 0 1 0 0 1 1 0 1 2 0 1 3 0 1 4 0 1 5 0 Relative temperature [ F], Pressure [psia], Liquid Rate [STB/D] vs Time [hr] Reservoir Modeling & Simulation logging & coring Appraisal 3
Multiphase Flow in the Upstream Flow in porous media (typical three phase, black-oil or compositional) May be coupled with geo-mechanics, thermal process Reservoir performance prediction to support field development and production operations Darcy flow at field scale, can be non-Darcy near wells; Stokes flow in pore space; turbulent flow in well bores and some carbonate formations Particulate flows Drilling and completion (cutting removal, sand control) and flow assurance in facility and pipelines Hydraulic fracturing: proppant transport in fracturing fluid, coupled with fracture/geo-mechanics Sediment gravity flows (typically not considered multiphase) Sedimentary processes controlling siliciclastic reservoir formations: turbidity current, debris and mud flows Used to understand geologic formations and predict reservoir rock property distributions Common challenges: multi-scale (space & time), multi-physics, uncertainty, inference & inversion 4
