A Unified Wellbore Model for Reservoir Simulation

Holmes, Jonathan A.; Byer, Thomas; Edwards, David A.; Stone, Terry; Pallister, Ian; Shaw, G.; Walsh, D.

doi:10.2118/134928-ms

Cited by 22 publications

(2 citation statements)

References 24 publications

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“…water coning, optimum perforation intervals, etc. ); or it may be used in the determination of the final acceptability of the entire field model (1) . In this study, this technique is adopted to study and characterize one of the producing wells in Buzurkan oil field which is BU-3.…”

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Single-Well Modeling Study In Buzurkan Oil Field

Al-Attar¹,

Al-Jawad²

2021

Journal of Petroleum Research and Studies

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Single well modeling technique is considered as an important tool in simulation studies that deal with the near well issues (i.e. water coning, optimum perforation intervals, etc.); or it may be used in the determination of the final acceptability of the entire field model (1). In this study, this technique is adopted to study and characterize one of the producing wells in Buzurkan oil field which is BU-3. The probability of the increase of water production will be tested with different production schemes, because if the well has to produce with certain water rate, the surface facilities have to be designed to be suitable for that rate. Water saturation distribution around the well is also inspected through the history of the well to determine the reason behind water production. CMG simulator has been used to perform this study. The results matching are based on the pressure and the produced water cut history and show good match in both cases. The model showed that there is a significant increase in water production with increase of oil rate due to water coning.

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confidence: 99%

Single-Well Modeling Study In Buzurkan Oil Field

Al-Attar¹,

Al-Jawad²

2021

Journal of Petroleum Research and Studies

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“…The integration of the reservoir simulator with a wellbore model and intelligent completions forms an essential part of optimal reservoir management. In most reservoir simulators, this kind of intelligent wells is modeled using the multi-segment well model (see, e.g., HoJeen and Dogru, 2007;Holmes et al, 1998;Holmes et al, 2010;Stone et al, 2015;Wan et al, 2008;Youngs et al, 2009). In the multi-segment well model, the wellbore is discretized by several segments that have their own characteristics (length, diameter, inclination, roughness, etc.…”

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A semi-implicit approach for the modeling of wells with inflow control completions

Flauraud

Ding

2020

Oil Gas Sci. Technol. – Rev. IFP Energies nouvelles

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In the last two decades, new technologies have been introduced to equip wells with intelligent completions such as Inflow Control Device (ICD) or Inflow Control Valve (ICV) in order to optimize the oil recovery by reducing the undesirable production of gas and water. To optimally define the locations of the packers and the characteristics of the valves, efficient reservoir simulation models are required. This paper is aimed at presenting the specific developments introduced in a multipurpose industrial reservoir simulator to simulate such wells equipped with intelligent completions taking into account the pressure drop and multiphase flow. An explicit coupling or decoupling of a reservoir model and a well flow model with intelligent completion makes usually unstable and non-convergent results, and a fully implicit coupling is CPU time consuming and difficult to be implemented. This paper presents therefore a semi-implicit approach, which links on one side to the reservoir simulation model and on the other side to the well flow model, to integrate ICD and ICV.

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Derivative-free search approaches for optimization of well inflow control valves and controls

Bellout,

Silva,

Bakke

et al. 2024

Comput Geosci

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Decisions regarding problem conceptualization, search approach, and how best to parametrize optimization methods for practical application are key to successful implementation of optimization approaches within georesources field development projects. This work provides decision support regarding the application of derivative-free search approaches for concurrent optimization of inflow control valves (ICVs) and well controls. A set of state-of-the-art approaches possessing different search features is implemented over two reference cases, and their performance, resource requirements, and specific method configurations are compared across multiple problem formulations for completion design. In this study, problem formulations to optimize completion design comprise fixed ICVs and piecewise-constant well controls. The design is optimized by several derivative-free methodologies relying on parallel pattern-search (tAPPS), population-based stochastic sampling (tPSO) and trust-region interpolation-based models (tDFTR). These methodologies are tested on a heterogeneous two-dimensional case and on a realistic case based on a section of the Olympus benchmark model. Three problem formulations are applied in both cases, i.e., one formulation optimizes ICV settings only, while two joint configurations also treat producer and injector controls as variables. Various method parametrizations across the range of cases and problem formulations exploit the different search features to improve convergence, achieve final objectives and infer response surface features. The scope of this particular study treats only deterministic problem formulations. Results outline performance trade-offs between parallelizable algorithms (tAPPS, tPSO) with high total runtime search efficiency and the local-search trust-region approach (tDFTR) providing effective objective gains for a low number of cost function evaluations. tAPPS demonstrates robust performance across different problem formulations that can support exploration efforts, e.g., during a pre-drill design phase while multiple independent tDFTR runs can provide local tuning capability around established solutions in a time-constrained post-drill setting. Additional remarks regarding joint completion design optimization, comparison metrics, and relative algorithm performance given the varying problem formulations are also made.

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A Unified Wellbore Model for Reservoir Simulation

Cited by 22 publications

References 24 publications

Single-Well Modeling Study In Buzurkan Oil Field

Single-Well Modeling Study In Buzurkan Oil Field

A semi-implicit approach for the modeling of wells with inflow control completions

Derivative-free search approaches for optimization of well inflow control valves and controls

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