Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit

Dai Baixiang; Yang Zhaoqiang; Chen Kui; Huan Jinlai; Wang Qingshuai

doi:doi:10.11648/j.earth.20251402.11

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Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit

Dai Baixiang^*

, Yang Zhaoqiang, Chen Kui, Huan Jinlai, Wang Qingshuai

Published in Earth Sciences (Volume 14, Issue 2)

Received: 6 March 2025 Accepted: 6 March 2025 Published: 6 March 2025

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Abstract

The complex fault block oilfield in Weixinan Sag is gradually entering the middle and late development stage and the middle and high water cut stage. The complex contradictions among layers, within layers and in the plane result in low efficiency of injection water waves, complex distribution of oil and water, and difficult to accurately predict the distribution of remaining oil. The fine characterization of the internal configuration of the reservoir was carried out to characterize the strong heterogeneity of the continental sedimentary complex fault block reservoir, and the flow unit was subdivided to qualitatively characterize the differences in the reservoir quality of sand bodies at different stages in the vertical direction of the reservoir, which brought new challenges to the fine geological modeling of the reservoir. In view of the lack of well data in offshore oil fields, sedimentary laws and geological knowledge base summarized in previous studies are used to constrain the modeling of braided river delta reservoir configuration. Taking Weizhou C Oilfield as an example, sequential indication, object, truncated Gauss Multipoint geostatistics isophase modeling method is preferred to establish underwater distributary channel model based on target method. The truncated Gaussian simulation method can effectively characterize the characteristics of the transition zone, establish the flow unit model, use the flow unit constraint attribute model to establish, further calculate the reservoir heterogeneity coefficient, accurately characterize the reservoir heterogeneity, and lay a good foundation for the next step of reservoir numerical simulation and tapping the potential of remaining oil.

Published in	Earth Sciences (Volume 14, Issue 2)
DOI	10.11648/j.earth.20251402.11
Page(s)	49-56
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2025. Published by Science Publishing Group

Keywords

Complex Fault, Truncate, Flow Unit, Configuration, Modeling

References

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Cite This Article

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APA Style

Baixiang, D., Zhaoqiang, Y., Kui, C., Jinlai, H., Qingshuai, W. (2025). Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit. Earth Sciences, 14(2), 49-56. https://doi.org/10.11648/j.earth.20251402.11

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ACS Style

Baixiang, D.; Zhaoqiang, Y.; Kui, C.; Jinlai, H.; Qingshuai, W. Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit. Earth Sci. 2025, 14(2), 49-56. doi: 10.11648/j.earth.20251402.11

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AMA Style

Baixiang D, Zhaoqiang Y, Kui C, Jinlai H, Qingshuai W. Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit. Earth Sci. 2025;14(2):49-56. doi: 10.11648/j.earth.20251402.11

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@article{10.11648/j.earth.20251402.11,
  author = {Dai Baixiang and Yang Zhaoqiang and Chen Kui and Huan Jinlai and Wang Qingshuai},
  title = {Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit
},
  journal = {Earth Sciences},
  volume = {14},
  number = {2},
  pages = {49-56},
  doi = {10.11648/j.earth.20251402.11},
  url = {https://doi.org/10.11648/j.earth.20251402.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20251402.11},
  abstract = {The complex fault block oilfield in Weixinan Sag is gradually entering the middle and late development stage and the middle and high water cut stage. The complex contradictions among layers, within layers and in the plane result in low efficiency of injection water waves, complex distribution of oil and water, and difficult to accurately predict the distribution of remaining oil. The fine characterization of the internal configuration of the reservoir was carried out to characterize the strong heterogeneity of the continental sedimentary complex fault block reservoir, and the flow unit was subdivided to qualitatively characterize the differences in the reservoir quality of sand bodies at different stages in the vertical direction of the reservoir, which brought new challenges to the fine geological modeling of the reservoir. In view of the lack of well data in offshore oil fields, sedimentary laws and geological knowledge base summarized in previous studies are used to constrain the modeling of braided river delta reservoir configuration. Taking Weizhou C Oilfield as an example, sequential indication, object, truncated Gauss Multipoint geostatistics isophase modeling method is preferred to establish underwater distributary channel model based on target method. The truncated Gaussian simulation method can effectively characterize the characteristics of the transition zone, establish the flow unit model, use the flow unit constraint attribute model to establish, further calculate the reservoir heterogeneity coefficient, accurately characterize the reservoir heterogeneity, and lay a good foundation for the next step of reservoir numerical simulation and tapping the potential of remaining oil.
},
 year = {2025}
}

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TY  - JOUR
T1  - Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit

AU  - Dai Baixiang
AU  - Yang Zhaoqiang
AU  - Chen Kui
AU  - Huan Jinlai
AU  - Wang Qingshuai
Y1  - 2025/03/06
PY  - 2025
N1  - https://doi.org/10.11648/j.earth.20251402.11
DO  - 10.11648/j.earth.20251402.11
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 49
EP  - 56
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20251402.11
AB  - The complex fault block oilfield in Weixinan Sag is gradually entering the middle and late development stage and the middle and high water cut stage. The complex contradictions among layers, within layers and in the plane result in low efficiency of injection water waves, complex distribution of oil and water, and difficult to accurately predict the distribution of remaining oil. The fine characterization of the internal configuration of the reservoir was carried out to characterize the strong heterogeneity of the continental sedimentary complex fault block reservoir, and the flow unit was subdivided to qualitatively characterize the differences in the reservoir quality of sand bodies at different stages in the vertical direction of the reservoir, which brought new challenges to the fine geological modeling of the reservoir. In view of the lack of well data in offshore oil fields, sedimentary laws and geological knowledge base summarized in previous studies are used to constrain the modeling of braided river delta reservoir configuration. Taking Weizhou C Oilfield as an example, sequential indication, object, truncated Gauss Multipoint geostatistics isophase modeling method is preferred to establish underwater distributary channel model based on target method. The truncated Gaussian simulation method can effectively characterize the characteristics of the transition zone, establish the flow unit model, use the flow unit constraint attribute model to establish, further calculate the reservoir heterogeneity coefficient, accurately characterize the reservoir heterogeneity, and lay a good foundation for the next step of reservoir numerical simulation and tapping the potential of remaining oil.

VL  - 14
IS  - 2
ER  -

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Author Information

Dai Baixiang

CNOOC China Ltd. Zhanjiang, Zhanjiang, China

Contact Email

http://orcid.org/0009-0002-3816-5807
Yang Zhaoqiang

CNOOC China Ltd. Zhanjiang, Zhanjiang, China
Chen Kui

CNOOC China Ltd. Zhanjiang, Zhanjiang, China
Huan Jinlai

CNOOC China Ltd. Zhanjiang, Zhanjiang, China
Wang Qingshuai

CNOOC China Ltd. Zhanjiang, Zhanjiang, China

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Plain Text BibTeX RIS

APA Style

Baixiang, D., Zhaoqiang, Y., Kui, C., Jinlai, H., Qingshuai, W. (2025). Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit. Earth Sciences, 14(2), 49-56. https://doi.org/10.11648/j.earth.20251402.11

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ACS Style

Baixiang, D.; Zhaoqiang, Y.; Kui, C.; Jinlai, H.; Qingshuai, W. Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit. Earth Sci. 2025, 14(2), 49-56. doi: 10.11648/j.earth.20251402.11

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AMA Style

Baixiang D, Zhaoqiang Y, Kui C, Jinlai H, Qingshuai W. Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit. Earth Sci. 2025;14(2):49-56. doi: 10.11648/j.earth.20251402.11

Copy | Download

@article{10.11648/j.earth.20251402.11,
  author = {Dai Baixiang and Yang Zhaoqiang and Chen Kui and Huan Jinlai and Wang Qingshuai},
  title = {Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit
},
  journal = {Earth Sciences},
  volume = {14},
  number = {2},
  pages = {49-56},
  doi = {10.11648/j.earth.20251402.11},
  url = {https://doi.org/10.11648/j.earth.20251402.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.earth.20251402.11},
  abstract = {The complex fault block oilfield in Weixinan Sag is gradually entering the middle and late development stage and the middle and high water cut stage. The complex contradictions among layers, within layers and in the plane result in low efficiency of injection water waves, complex distribution of oil and water, and difficult to accurately predict the distribution of remaining oil. The fine characterization of the internal configuration of the reservoir was carried out to characterize the strong heterogeneity of the continental sedimentary complex fault block reservoir, and the flow unit was subdivided to qualitatively characterize the differences in the reservoir quality of sand bodies at different stages in the vertical direction of the reservoir, which brought new challenges to the fine geological modeling of the reservoir. In view of the lack of well data in offshore oil fields, sedimentary laws and geological knowledge base summarized in previous studies are used to constrain the modeling of braided river delta reservoir configuration. Taking Weizhou C Oilfield as an example, sequential indication, object, truncated Gauss Multipoint geostatistics isophase modeling method is preferred to establish underwater distributary channel model based on target method. The truncated Gaussian simulation method can effectively characterize the characteristics of the transition zone, establish the flow unit model, use the flow unit constraint attribute model to establish, further calculate the reservoir heterogeneity coefficient, accurately characterize the reservoir heterogeneity, and lay a good foundation for the next step of reservoir numerical simulation and tapping the potential of remaining oil.
},
 year = {2025}
}

Copy | Download

TY  - JOUR
T1  - Modeling Method of Braided River Delta Reservoir Configuration Based on Flow Unit

AU  - Dai Baixiang
AU  - Yang Zhaoqiang
AU  - Chen Kui
AU  - Huan Jinlai
AU  - Wang Qingshuai
Y1  - 2025/03/06
PY  - 2025
N1  - https://doi.org/10.11648/j.earth.20251402.11
DO  - 10.11648/j.earth.20251402.11
T2  - Earth Sciences
JF  - Earth Sciences
JO  - Earth Sciences
SP  - 49
EP  - 56
PB  - Science Publishing Group
SN  - 2328-5982
UR  - https://doi.org/10.11648/j.earth.20251402.11
AB  - The complex fault block oilfield in Weixinan Sag is gradually entering the middle and late development stage and the middle and high water cut stage. The complex contradictions among layers, within layers and in the plane result in low efficiency of injection water waves, complex distribution of oil and water, and difficult to accurately predict the distribution of remaining oil. The fine characterization of the internal configuration of the reservoir was carried out to characterize the strong heterogeneity of the continental sedimentary complex fault block reservoir, and the flow unit was subdivided to qualitatively characterize the differences in the reservoir quality of sand bodies at different stages in the vertical direction of the reservoir, which brought new challenges to the fine geological modeling of the reservoir. In view of the lack of well data in offshore oil fields, sedimentary laws and geological knowledge base summarized in previous studies are used to constrain the modeling of braided river delta reservoir configuration. Taking Weizhou C Oilfield as an example, sequential indication, object, truncated Gauss Multipoint geostatistics isophase modeling method is preferred to establish underwater distributary channel model based on target method. The truncated Gaussian simulation method can effectively characterize the characteristics of the transition zone, establish the flow unit model, use the flow unit constraint attribute model to establish, further calculate the reservoir heterogeneity coefficient, accurately characterize the reservoir heterogeneity, and lay a good foundation for the next step of reservoir numerical simulation and tapping the potential of remaining oil.

VL  - 14
IS  - 2
ER  -

Copy | Download