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Interpretation of Sand Body Architecture in Complex Fault Block Area of Craton Basin: Case Study of TIII in Sangtamu Area, Tarim Basin

Author

Listed:
  • Chao Wang

    (Institute of Petroleum Exploration and Development, PetroChina Tarim Oilfield Company, Korla 841000, China)

  • Chunjing Yan

    (School of Geosciences, Yangtze University, Wuhan 430100, China)

  • Zhengjun Zhu

    (Institute of Petroleum Exploration and Development, PetroChina Tarim Oilfield Company, Korla 841000, China)

  • Shaohua Li

    (School of Geosciences, Yangtze University, Wuhan 430100, China)

  • Duanchuan Lv

    (Institute of Petroleum Exploration and Development, PetroChina Tarim Oilfield Company, Korla 841000, China)

  • Xixin Wang

    (School of Geosciences, Yangtze University, Wuhan 430100, China)

  • Dawang Liu

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

Abstract

The complex fault block oilfields in the craton basin contain vast reserves of oil and gas resources. During the development of an oilfield, the flow of oil, gas, and water, is controlled by faults and configuration boundaries. The distribution of remaining oil and gas depends on the interpretation of the reservoir’s architecture. However, recognizing the faults and the architecture boundary remains a challenge, hindering the efficient development of these resources. This study proposes a new idea for interpreting the configuration of thick sand bodies. This study was conducted in order to interpret the fine architecture of thick sand bodies in the Sangtamu area, using core samples, well logging, and production data, guided by sedimentation patterns from ancient to modern times. Results indicate that the Sangtamu area is a braided river delta front sedimentary system, dominated by the backbone underwater distributary channel and branch-type underwater distributary channels. The backbone channel is larger in scale, with a relatively large rock grain size and a box-shaped logging curve, whereas the smaller-scale branch channels have a bell-shaped logging curve resulting from the gradual weakening of water energy. Sandstone bodies from different types of underwater distributary channels are spatially overlapped, forming thick plate-like sandstones. The architecture interface between channels can be used as the fluid seepage boundary and can help prevent bottom water intrusion to a certain extent. The remaining oil is primarily concentrated in the architecture boundary area, which presents the next potential tapping area.

Suggested Citation

  • Chao Wang & Chunjing Yan & Zhengjun Zhu & Shaohua Li & Duanchuan Lv & Xixin Wang & Dawang Liu, 2023. "Interpretation of Sand Body Architecture in Complex Fault Block Area of Craton Basin: Case Study of TIII in Sangtamu Area, Tarim Basin," Energies, MDPI, vol. 16(8), pages 1-15, April.
  • Handle: RePEc:gam:jeners:v:16:y:2023:i:8:p:3454-:d:1123933
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    References listed on IDEAS

    as
    1. Mingqiu Hou & Yuxiang Xiao & Zhengdong Lei & Zhi Yang & Yihuai Lou & Yuming Liu, 2023. "Machine Learning Algorithms for Lithofacies Classification of the Gulong Shale from the Songliao Basin, China," Energies, MDPI, vol. 16(6), pages 1-19, March.
    2. Qiangqiang Kang & Jiagen Hou & Liqin Liu & Mingqiu Hou & Yuming Liu, 2023. "Quantitative Prediction of Braided Sandbodies Based on Probability Fusion and Multi-Point Geostatistics," Energies, MDPI, vol. 16(6), pages 1-23, March.
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