A self-adaptive deep learning algorithm for accelerating multi-component flash calculation

T Zhang, Y Li, Y Li, S Sun, X Gao - Computer Methods in Applied …, 2020 - Elsevier
In this paper, the first self-adaptive deep learning algorithm is proposed in details to
accelerate flash calculations, which can quantitatively predict the total number of phases in …

General strategy for stability testing and phase-split calculation in two and three phases

Z Li, A Firoozabadi - SPE Journal, 2012 - onepetro.org
Efficient and robust phase equilibrium computation has become a prerequisite for successful
large-scale compositional reservoir simulation. When knowledge of the number of phases is …

Physical-informed deep learning framework for CO2-injected EOR compositional simulation

R Sun, H Pan, H Xiong, H Tchelepi - Engineering Applications of Artificial …, 2023 - Elsevier
CO 2 injection for enhanced oil recovery (CO 2-EOR) is one of the industry's most widely
applied techniques for CO 2 utilization. People use the compositional simulation technique …

Increasing the computational speed of flash calculations with applications for compositional, transient simulations

CP Rasmussen, K Krejbjerg, ML Michelsen… - … Reservoir Evaluation & …, 2006 - onepetro.org
Approaches are presented for reducing the computation time spent on flash calculations in
compositional, transient simulations. In a conventional flash calculation, the majority of the …

Fast and robust algorithm for compositional modeling: Part I—stability analysis testing

A Firoozabadi, H Pan - SPE Journal, 2002 - onepetro.org
Given pressure, temperature, and composition of a fluid, one desires to determine whether
the single phase state is stable. This problem is, in principle, much simpler than phase …

Multiphase Equilibrium Calculation Framework for Compositional Simulation of CO2 Injection in Low-Temperature Reservoirs

H Pan, M Connolly, H Tchelepi - Industrial & Engineering …, 2019 - ACS Publications
CO2 injection into an oil reservoir at low temperature can lead to the formation of three
hydrocarbon phases. Key challenges persist in the development of phase equilibrium …

Three-phase flash in compositional simulation using a reduced method

R Okuno, RT Johns, K Sepehrnoori - Spe Journal, 2010 - onepetro.org
CO 2 flooding at low temperatures often results in three or more hydrocarbon phases.
Multiphase compositional simulation must simulate such gasfloods accurately. Drawbacks of …

Robust and efficient trust-region based stability analysis and multiphase flash calculations

M Petitfrere, DV Nichita - Fluid Phase Equilibria, 2014 - Elsevier
Multiphase flash calculations and phase stability analysis are central in compositional
reservoir and chemical process simulators. For instance, in some simulations, a huge …

Acceleration of the NVT Flash Calculation for Multicomponent Mixtures Using Deep Neural Network Models

Y Li, T Zhang, S Sun - Industrial & Engineering Chemistry …, 2019 - ACS Publications
Phase equilibrium calculation, also known as flash calculation, has been extensively
applied in petroleum engineering, not only as a standalone application for a separation …

Rapid flash calculations for compositional simulation

Y Li, RT Johns - SPE Reservoir Evaluation & Engineering, 2006 - onepetro.org
The computational time for conventional flash calculations increases significantly with the
number of components, making it impractical for use in many fine-grid compositional …