Fluid Characterization and Modeling of Compositional Variation, Dukhan Field, Qatar

Gupta, D.K.; Lawrence, J.J.; Majid, M.N. Bin Ab; Wahlheim, T.A.

doi:10.3997/2214-4609-pdb.151.iptc13657

Cited by 2 publications

(1 citation statement)

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“…the cycling process has been implemented at various gas condensate fields worldwide, including kaybob, the largest field in canada, since 1968. Additionally, it has been applied at the deep-seated carter-knox field in Oklahoma [11][12], the Arab d reservoir of the dukhan field in Qatar, within the Permian-triassic khuff horizon [13], la Gloria in texas [11], and cotton valley in louisiana [14].…”

Section: Introductionmentioning

confidence: 99%

A Case Study of Gas-Condensate Reservoir Performance with Gas Cycling

Udovchenko,

Blicharski,

Matiishyn

2024

Archives of Mining Sciences

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The study examines the application of dry gas injection technology (cycling process) in different depletion stages (25%, 50%, 75%, 100% of the initial reservoir pressure, and the dew point pressure) at a gas condensate field. The injection took place with varying numbers of injection wells relative to production wells (4:1, 3:1, 2:1, 1:1, and 1:2). The study assessed the impact of dry gas injection periods, ranging from 1 to 3 years, on increasing the condensate recovery factor in a real gas condensate reservoir named X. A hydrodynamic model was used and calibrated with historical data, resulting in a comprehensive approach. Compared to the traditional depletion development method, this approach led to a significant 9% rise in the condensate recovery factor. The results indicate that injection has a positive effect on enhancing the recovery factor of condensate and gas when compared to primary development methods based on depletion. As a result, these findings facilitate a rapid evaluation of the possibility of introducing similar measures in gas-condensate reservoirs in the future for reservoir systems that have a low and moderate potential for liquid hydrocarbons C5+. The optimised multidimensional hydrodynamic calculations, utilising geological and technological models, are crucial in determining the parameters for the technological production and injection wells.

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Section: Introductionmentioning

confidence: 99%

A Case Study of Gas-Condensate Reservoir Performance with Gas Cycling

Udovchenko,

Blicharski,

Matiishyn

2024

Archives of Mining Sciences

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Modeling of multicomponent diffusions and natural convection in unfractured and fractured media by discontinuous Galerkin and mixed methods

Hoteit

Firoozabadi

2018

Numerical Meth Engineering

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Summary Computation of the distribution of species in hydrocarbon reservoirs from diffusions (thermal, molecular, and pressure) and natural convection is an important step in reservoir initialization. Current methods, which are mainly based on the conventional finite‐difference approach, may not be numerically efficient in fractured and other media with complex heterogeneities. In this work, the discontinuous Galerkin (DG) method combined with the mixed finite element (MFE) method is used for the calculation of compositional variation in fractured hydrocarbon reservoirs. The use of unstructured gridding allows efficient computations for fractured media when the cross flow equilibrium concept is invoked. The DG method has less numerical dispersion than the upwind finite‐difference methods. The MFE method ensures continuity of fluxes at the interface of the grid elements. We also use the local DG (LDG) method instead of the MFE to calculate the diffusion fluxes. Results from several numerical examples are presented to demonstrate the efficiency, robustness, and accuracy of the model. Various features of convection and diffusion in homogeneous, layered, and fractured media are also discussed.

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Fluid Characterization and Modeling of Compositional Variation, Dukhan Field, Qatar

Cited by 2 publications

References 0 publications

A Case Study of Gas-Condensate Reservoir Performance with Gas Cycling

A Case Study of Gas-Condensate Reservoir Performance with Gas Cycling

Modeling of multicomponent diffusions and natural convection in unfractured and fractured media by discontinuous Galerkin and mixed methods

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