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Optimization of Oil Productivity from the Ultra−Depth Strike−Slip Fault−Controlled Carbonate Reservoirs in Northwestern China

Author

Listed:
  • Xinxing He

    (PetroChina Tarim Oilfield Company, Korla 841000, China)

  • Rujun Wang

    (PetroChina Tarim Oilfield Company, Korla 841000, China)

  • Jianping Yang

    (PetroChina Tarim Oilfield Company, Korla 841000, China)

  • Shiyin Li

    (PetroChina Tarim Oilfield Company, Korla 841000, China)

  • Chao Yao

    (PetroChina Tarim Oilfield Company, Korla 841000, China)

  • Guanghui Wu

    (School of Geoscience and Technology, Southwest Petroleum University, Chengdu 610500, China)

Abstract

The largest ultra−deep (>7000 m) strike−slip fault−controlled oilfield was found in the tight Ordovician carbonates in the Tarim Basin. Because oil production wells in the Fuman Oilfield generally have bottom water, a reasonable production design is of significant importance for extending the water−free oil recovery period and improving oil recovery. However, there is no economical and effective quantitative method to determine a reasonable production capacity and a corresponding reasonable work system for stable−production wells in fault−controlled fractured carbonate reservoirs. In this contribution, we integrated the dynamic and static data of different types of wells in the Fuman Oilfield. It was found that there is a positive relationship between well−controlled dynamic reserves and reasonable productivity, and the productivity corresponding to the upper limit of the reserve can be defined as reasonable productivity. Further, we proposed a correlation equation between well−controlled dynamic reserves and reasonable productivity that shows the reasonable productivity of a stable well from the well−controlled dynamic reserve, which was obtained by combining the well productivity test and analogous well productivity test methods. The relationship between the reasonable productivity per unit nozzle and the rational productivity was obtained according to the determined matching relationship between the reasonable productivity of the stable−production well and the nozzle. The application results show that it can not only quickly determine the reasonable production capacity of stable−production wells but also deepen the understanding of the quantitative characteristics of the production capacity of the Fuman Oilfield. It also provides insight in the rational production allocation of new wells and optimize the development design, which supports the 1500 × 10 4 bbl/year oil production from the ultra−deep fractured carbonate reservoirs along the strike−slip fault zones in the Tarim Basin.

Suggested Citation

  • Xinxing He & Rujun Wang & Jianping Yang & Shiyin Li & Chao Yao & Guanghui Wu, 2022. "Optimization of Oil Productivity from the Ultra−Depth Strike−Slip Fault−Controlled Carbonate Reservoirs in Northwestern China," Energies, MDPI, vol. 15(9), pages 1-15, May.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:9:p:3472-:d:811902
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    Citations

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    Cited by:

    1. Yongfeng Zhu & Yintao Zhang & Xingxing Zhao & Zhou Xie & Guanghui Wu & Ting Li & Shuai Yang & Pengfei Kang, 2022. "The Fault Effects on the Oil Migration in the Ultra-Deep Fuman Oilfield of the Tarim Basin, NW China," Energies, MDPI, vol. 15(16), pages 1-15, August.
    2. Qinghua Wang & Yintao Zhang & Zhou Xie & Yawen Zhao & Can Zhang & Chong Sun & Guanghui Wu, 2022. "The Advancement and Challenges of Seismic Techniques for Ultra-Deep Carbonate Reservoir Exploitation in the Tarim Basin of Northwestern China," Energies, MDPI, vol. 15(20), pages 1-13, October.

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