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Efficient Simulation of Sandbody Architecture Using Probability Simulation—A Case Study in Cretaceous Condensate Gas Reservoir in Yakela Area, Tahe Oilfield, China

Author

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  • Shuyang Chen

    (School of Earth Resources, China University of Geosciences, Wuhan 430074, China
    Sinopec Northwest Oilfield Company, Urumqi 830011, China)

  • Lin Pan

    (School of Earth Resources, China University of Geosciences, Wuhan 430074, China)

  • Xiao Wang

    (School of Earth Resources, China University of Geosciences, Wuhan 430074, China)

  • Honggang Liang

    (Sinopec Northwest Oilfield Company, Urumqi 830011, China)

  • Tian Dong

    (School of Earth Resources, China University of Geosciences, Wuhan 430074, China)

Abstract

The Cretaceous condensate gas reservoir in Yakela is in a fan delta system in which the river channel swings frequently and the contact relationships between sandbodies are complicated both vertically and horizontally. Therefore, making the sandbody architecture clear is becoming the most urgent demand in locating the remaining oil. However, conventional well correlations and fine interpretation do not apply in this area due to the large-spacing of wells and the lack of reliable seismic data. In this paper, we analyzed the vertical characteristics of sandbody architecture including the type and thickness of architectural elements and their contact relationships based on well data, then simulated the lateral and planar distribution probabilities via a database containing a large number of dimension parameters from relevant architectural elements using Monte Carlo simulation. This simulation provides reasonable and efficient estimation of inter-well sandbody distribution. The workflow and data we present can be applied to similar clastic reservoir modeling and simulations, especially for areas with insufficient well and seismic data.

Suggested Citation

  • Shuyang Chen & Lin Pan & Xiao Wang & Honggang Liang & Tian Dong, 2022. "Efficient Simulation of Sandbody Architecture Using Probability Simulation—A Case Study in Cretaceous Condensate Gas Reservoir in Yakela Area, Tahe Oilfield, China," Energies, MDPI, vol. 15(16), pages 1-17, August.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:16:p:5971-:d:891082
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    References listed on IDEAS

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    1. Cortazar, Gonzalo & Schwartz, Eduardo S., 1998. "Monte Carlo evaluation model of an undeveloped oil field," Journal of Energy Finance & Development, Elsevier, vol. 3(1), pages 73-84.
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