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Sedimentary Architecture Analysis of Deltaic Sand Bodies Using Sequence Stratigraphy and Seismic Sedimentology: A Case Study of Jurassic Deposits in Zhetybay Oilfield, Mangeshrak Basin, Kazakhstan

Author

Listed:
  • Jun Ni

    (PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China)

  • Dingding Zhao

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum-Beijing, Beijing 102249, China
    College of Geosciences, China University of Petroleum-Beijing, Beijing 102249, China)

  • Xixuan Liao

    (College of Geosciences, China University of Petroleum-Beijing, Beijing 102249, China
    Pengzhou Gas Field Department, Sinopec Southwest Oil & Gas Company, Pengzhou 611930, China)

  • Xuanran Li

    (PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China)

  • Libing Fu

    (PetroChina Research Institute of Petroleum Exploration & Development, Beijing 100083, China)

  • Ruxian Chen

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum-Beijing, Beijing 102249, China
    College of Geosciences, China University of Petroleum-Beijing, Beijing 102249, China)

  • Zhentong Xia

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum-Beijing, Beijing 102249, China
    College of Geosciences, China University of Petroleum-Beijing, Beijing 102249, China)

  • Yuming Liu

    (State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum-Beijing, Beijing 102249, China
    College of Geosciences, China University of Petroleum-Beijing, Beijing 102249, China)

Abstract

Three-dimensional (3D) seismic data and well log data were used to investigate the sandstone architecture of the Middle Jurassic deltaic reservoirs of the Zhetybay Oilfield, Mangeshrak Basin, Kazakhstan. The base-level cycles of different scales were identified and divided using well log and 3D seismic data. Five types of sedimentary boundaries were identified in the mouth bar sandstones. The boundaries divide single mouth bars. Vertically, the spatial distribution of sand bodies can be divided into superposed, spliced, and isolation modes. Laterally, contact modes can be divided into superposition, lateral, and isolation modes. We found that the base-level cycle controls the evolution of the delta front sand body architecture. In the early decline or late rise of the base-level cycle, the superimposed or spliced modes dominate the sand body. By contrast, the lateral or isolation modes dominate the sand body in the late decline or early rise of the base-level cycle. This paper proposes an architecture model of the delta front sand bodies controlled by the base-level cycle. The spatial distribution and morphological variation of deltaic sand bodies could be linked to the base-level cycles.

Suggested Citation

  • Jun Ni & Dingding Zhao & Xixuan Liao & Xuanran Li & Libing Fu & Ruxian Chen & Zhentong Xia & Yuming Liu, 2022. "Sedimentary Architecture Analysis of Deltaic Sand Bodies Using Sequence Stratigraphy and Seismic Sedimentology: A Case Study of Jurassic Deposits in Zhetybay Oilfield, Mangeshrak Basin, Kazakhstan," Energies, MDPI, vol. 15(14), pages 1-20, July.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:14:p:5306-:d:868537
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    Cited by:

    1. Xuanran Li & Jingcai Wang & Dingding Zhao & Jun Ni & Yaping Lin & Angang Zhang & Lun Zhao & Yuming Liu, 2022. "Quantitative Evaluation of Water-Flooded Zone in a Sandstone Reservoir with Complex Porosity–Permeability Relationship Based on J-Function Classification: A Case Study of Kalamkas Oilfield," Energies, MDPI, vol. 15(19), pages 1-15, September.

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