Review of two-phase flow models for control and estimation
Most model-based control and estimation techniques put limitations on the structure and
complexity of the models to which they are applied. This has motivated the development of …
complexity of the models to which they are applied. This has motivated the development of …
The modeling of two-way coupled transient multiphase flow and heat transfer during gas influx management using fiber optic distributed temperature sensing …
Effective management of gas influxes during drilling for either oil-gas or geothermal wells is
crucial for ensuring operational safety and minimizing non-productive times, especially for …
crucial for ensuring operational safety and minimizing non-productive times, especially for …
The WAF scheme for the isentropic drift-flux model of compressible two-phase flows
This paper focuses on the extension of the Weighted Average Flux (WAF) scheme for the
numerical simulation of two-phase gas–liquid flow by imposing velocity equilibrium and …
numerical simulation of two-phase gas–liquid flow by imposing velocity equilibrium and …
A novel data assimilation-based real-time state estimation method for gas influx profiling during riser gas events
Riser gas events during offshore drilling operations are hazardous and challenging to
control. Therefore, knowledge of the gas influx sizes and distributions in a marine drilling …
control. Therefore, knowledge of the gas influx sizes and distributions in a marine drilling …
Computationally efficient simulation of non-isothermal two-phase flow during well construction using a new reduced drift-flux model
Two-phase flow modeling is important in well construction field for well planning and real-
time applications. In this paper, a new non-isothermal two-phase flow model is presented …
time applications. In this paper, a new non-isothermal two-phase flow model is presented …
On improving algorithm efficiency of gas-kick simulations toward automated influx management: a Robertson differential-algebraic-equation problem approach
Improved numerical efficiency in simulating wellbore gas-influx behaviors is essential for
realizing real-time model-prediction-based gas-influx management in wells equipped with …
realizing real-time model-prediction-based gas-influx management in wells equipped with …
Temperature dynamics and its effects on gas influx handling during managed pressure drilling operations
Abstract With Managed Pressure Drilling (MPD) becoming increasingly important to oil and
gas well construction, there has been a growing demand for comprehensive models that can …
gas well construction, there has been a growing demand for comprehensive models that can …
Real-time estimation of reservoir influx rate and pore pressure using a simplified transient two-phase flow model
A Ambrus, UJF Aarsnes, AK Vajargah, B Akbari… - Journal of Natural Gas …, 2016 - Elsevier
The ability to perform accurate pore pressure and reservoir inflow estimation during a kick
incident is necessary, particularly when drilling in formations with narrow pressure margins …
incident is necessary, particularly when drilling in formations with narrow pressure margins …
Modeling and numerical implementation of managed-pressure-drilling systems for the assessment of pressure-control systems
SN Lordejani, MH Abbasi, N Velmurugan… - SPE Drilling & …, 2020 - onepetro.org
Automated managed‐pressure drilling (MPD) is a method to enhance downhole pressure‐
control performance and safety during drilling operations. It is becoming more common to …
control performance and safety during drilling operations. It is becoming more common to …
Gas kicks in non-aqueous drilling fluids: a well control challenge
Non-aqueous drilling fluids (such as synthetic-based mud) are frequently used to drill one or
more sections of an oil/gas well to reduce drilling problems such as shale sloughing …
more sections of an oil/gas well to reduce drilling problems such as shale sloughing …