Simulation of gas-fluid flows motion in a directional well

Lykhin, P.A.; Scientific, Novosibirsk; Usov, E. V.; Chukhno, V. I.; Kurmangaliev, R.Z.; Ulyanov, V.N.; Ras, Ibrae

doi:10.33285/0132-2222-2019-10(555)-22-27

Cited by 2 publications

(2 citation statements)

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“…Программный комплекс «d-Flow» [1][2][3][4][5], разработанный компанией ООО «Новосибирский Научно-технический Центр», позволяет решать ряд производственных задач, возникающих в процессе добычи и разработки месторождения, на основе интегрированного моделирования:…”

Section: Introductionunclassified

Multiphase friction calculation peculiarities based on models implemented in the "d-Flow" software package

Matroshilov,

Krylov,

Kozlov

et al. 2024

Izvestiâ vysših učebnyh zavedenij. Neftʹ i gaz

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In order to ensure efficient and safe operation of oil and gas fields, a tool is required to design production wells and surface infrastructure. It is important to take into account the physical processes that occur during production, as well as fluid properties and phase transitions. The "d-Flow" software package enables the creation of a comprehensive field model based on geological and field data to calculate hydraulic losses of pipelines and forecast hydrocarbon production. The fluid flow modelling is based on the calculation of multiphase friction with the wall of a well or a pipeline. The article discusses the implementation of four friction models: the Beggs-Brill model, the Gray model and its modification, and the Mukherjee-Brill model. The purpose of this work is to compare the predictions of friction models with the results obtained using commercial realizations of the same models. The results of the Schlumberger PIPESIM hydraulic simulator calculations were used as a benchmark for comparison with the "d-Flow" models. Numerical experiments were conducted to investigate two-phase flow under varying well geometry and flow regimes. The models used were compared, and the results showed that the predicted liquid holdup had an average relative error of 0.06%. In some cases, the error was as low as 0.02%. The predicted cumulative pressure drop in the well did not exceed 0.34% for all considered models. Based on the comparison results, we conclude that the "d-Flow" software package is suitable for calculating pressure drop in wells of different geometry and surface networks.

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Section: Introductionunclassified

Multiphase friction calculation peculiarities based on models implemented in the "d-Flow" software package

Matroshilov,

Krylov,

Kozlov

et al. 2024

Izvestiâ vysših učebnyh zavedenij. Neftʹ i gaz

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“…The optimization module for the well process conditions is integrated into the hydraulic calculation [7][8][9]. The optimization result is the selected nominal bores of the surface choke of known producing wells, which ensures the minimum value of the target function.…”

Section: Introductionmentioning

confidence: 99%

Mathematical Justification for Optimizing Operating Conditions of Gas and Gas Condensate Producing Wells

Cheremisin

Usov²,

Kolchanov³

et al. 2022

Energies

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The paper investigated the problem of selecting/finding the optimal process conditions for gas condensate wells. The well process conditions imply a set of parameters that characterize its operation. The optimization of process conditions provides for the efficient operation of an oil and gas field while meeting the defined boundary and initial conditions, and allows for the process/production goal to be achieved. This paper proposed using the tree-structured Parzen estimator (TPE), which allows for the results from previous iterations to be considered, in order to identify the most promising region of conditions, thereby increasing the optimization efficiency. The movement of multiphase fluid inside the pipeline system (also in the borehole) must be calculated to solve the process optimization problem. The optimization module was integrated into the hydraulic and unsteady state multiphase flow calculations inside the well and the pipeline. The platform created allows for the process conditions at gas condensate fields to be identified via the use of numerical methods. The proposed optimization algorithm was tested in delivering the task of optimizing the process conditions in 13 producing wells in a part of a real gas condensate field in Western Siberia. The engineering problem of optimizing the production of gas and the gas condensate was solved as a consequence of the calculations performed.

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Simulation of gas-fluid flows motion in a directional well

Cited by 2 publications

References 0 publications

Multiphase friction calculation peculiarities based on models implemented in the "d-Flow" software package

Multiphase friction calculation peculiarities based on models implemented in the "d-Flow" software package

Mathematical Justification for Optimizing Operating Conditions of Gas and Gas Condensate Producing Wells

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