Improving Tight Gas Recovery from Multi-pressure System During Commingled Production: An Experimental Investigation

Abstract

Commingled production has been widely used as an efficient production method in gas field. However, the interlayer interference of gas flow seriously restricts the improvement of gas recovery. Presently, there are several investigations on commingled production characteristics of multi-pressure system gas reservoirs, but no corresponding improved production methods have been proposed. In this study, commingled production characteristics were studied by conducting simultaneous production (simultaneously opening all gas layers for production) simulation experiments. Subsequently, the mechanism of eliminating interlayer interference was revealed by conducting progressive production (progressively opening each gas layer for production) simulation experiments. Then, the effect of interlayer pressure difference on the gas recovery was studied to evaluate the improvement effect of gas recovery. Finally, the effects of initial temperature and pressure on gas recovery were explored to judge the applicability of the progressive production. All experiments were conducted with full-diameter cores of tight sandstone under conditions of temperature, pressure and gas–water saturation similar to those of the actual reservoirs. Experimental results showed that the gas produced by the high-pressure layer may flow back to the low-pressure layer through the interconnected pipeline at outlet end, thereby inhibiting the production capacity of the low-pressure layer and the gas recovery during commingled production. The progressive production method effectively avoids the occurrence of backflow, reduces the effect of interlayer interference, balances the production contribution ratio of different layers and improves the total gas production and recovery efficiency. The progressive production can improve the gas recovery of all gas layers; however, the improvement effect on the low-pressure layer is much better than on the high-pressure layer. The gas recovery from the low-pressure layer to the high-pressure layer increased by 2.62%, 2.23%, 1.41% and 1.23%, respectively. The increase in interlayer pressure difference can intensify interlayer interference and reduce the gas recovery of both simultaneous and progressive production. However, the greater the interlayer pressure difference (2, 3 and 4 MPa), the better the improvement effect of the progressive production in gas recovery (2.04%, 2.66% and 3.61%). The progressive production is effective for multi-pressure system with different initial temperatures and pressures.

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References

  1. Arevalo-Villagran, J. A., Wattenbarger, R. A., & El-Banbi, A. H. (2000). Production analysis of commingled gas reservoirs-case histories. SPE 58985, SPE International Petroleum Conference and Exhibition in Mexico held in Villahermosa, Mexico, 1–3 February 2000. https://doi.org/10.2118/58985-MS.

  2. Ghanizadeh, A., Clarkson, C. R., Aquino, S., Ardakani, O. H., & Sanei, H. (2015). Petrophysical and geomechanical characteristics of Canadian tight oil and liquid-rich gas reservoirs: I. Pore network and permeability characterization. Fuel, 153, 664–681.

    Article  Google Scholar 

  3. Huang, S. J., Kang, B. T., Cheng, L. S., Zhou, W. S., & Chang, S. P. (2015). Quantitative characterization of interlayer interference and productivity prediction of directional wells in the multilayer commingled production of ordinary offshore heavy oil reservoirs. Petroleum Exploration and Development, 42, 533–540.

    Article  Google Scholar 

  4. Huang, W. B., Lu, S. F., Hersi, Q. S., Wang, M., Deng, S. W., & Lu, R. J. (2017). Reservoir spaces in tight sandstones: Classification, fractal characters, and heterogeneity. Journal of Natural Gas Science and Engineering, 46, 80–92.

    Article  Google Scholar 

  5. Lei, H., Yang, S. L., Zu, L. H., Wang, Z. L., & Li, Y. (2016). Oil Recovery performance and CO2 storage potential of CO2 water-alternating-gas injection after continuous CO2 injection in a multilayer formation. Energy & Fuels, 30, 8922–8931.

    Article  Google Scholar 

  6. Li, Q. X., Xu, J., Peng, S. J., Yan, F. Z., Zhou, B., Han, E. D., & Jiang, C. (2020a). Dynamic evolution of the fluid effect of multiple reservoirs due to CBM coproduction: An experimental investigation. Energy & Fuels, 34, 10947–10957.

    Article  Google Scholar 

  7. Li, Q. X., Xu, J., Peng, S. J., Yan, F. Z., Zhou, B., Han, E. D., & Jiang, C. (2020b). Physical simulations of gas production mechanism in constant-rate co-production from multiple coal reservoirs. Natural Resources Research, 30, 1427–1443.

    Article  Google Scholar 

  8. Li, Y., Gao, X. D., Meng, S. Z., Wu, P., Niu, X. L., Qiao, P., & Elsworth, D. (2019). Diagenetic sequences of continuously deposited tight sandstones in various environments: A case study from upper Paleozoic sandstones in the Linxing area, eastern Ordos basin, China. AAPG Bulletin, 103, 2757–2783.

    Article  Google Scholar 

  9. Li, Y., Li, H. T., Cai, J. C., Ma, Q. R., & Zhang, J. F. (2018). The dynamic effect in capillary pressure during the displacement process in ultra-low permeability sandstone reservoirs. Capillarity, 1, 11–18.

    Article  Google Scholar 

  10. Li, Y., Yang, J. H., Pan, Z. J., Meng, S. Z., Wang, K., & Niu, X. L. (2019). Unconventional natural gas accumulations in stacked deposits: A discussion of upper paleozoic coal-bearing strata in the east margin of the Ordos Basin, China. Acta Geologica Sinica (English Edition), 93, 111–129.

    Article  Google Scholar 

  11. Liu, G. F., Meng, Z., Luo, D. Y., Wang, J. N., Gu, D. H., & Yang, D. Y. (2020). Experimental evaluation of interlayer interference during commingled production in a tight sandstone gas reservoir with multi-pressure systems. Fuel, 262, 116557.

    Article  Google Scholar 

  12. McGlade, C., Speirs, J., & Sorrell, S. (2013). Unconventional gas: A review of regional and global resource estimate. Energy, 55, 571–584.

    Article  Google Scholar 

  13. Meng, S. Z., Li, Y., Wang, L., Wang, K., & Pan, Z. J. (2018). A mathematical model for gas and water production from overlapping fractured coalbed methane and tight gas reservoirs. Journal of Petroleum Science and Engineering, 171, 959–973.

    Article  Google Scholar 

  14. Peng, L. S., Qiao, L., Gong, M., & Lv, Y. M. (2014). Factors affecting the production performance of coalbed methane wells with multiple-zone. Journal of China Coal Society, 39, 2060–2067.

    Google Scholar 

  15. Qin, Y., Shen, J., & Shen, Y. L. (2016). Joint mining compatibility of superposed gas-bearing systems: A general geological problem for extraction of three natural gases and deep CBM in coal series. Journal of China Coal Society, 41, 14–23.

    Google Scholar 

  16. Rahman, N. M. A., & Mattar, L. (2007). New analytical solution to pressure transient problems in commingled, layered zones with unequal initial pressures subject to step changes in production rates. Journal of Petroleum Science and Engineering, 56, 283–295.

    Article  Google Scholar 

  17. Schmitt, M., Fernandes, C. P., Wolf, F. G., da Cunha, B., Neto, J. A., Rahner, C. P., & Santiago dos Santos, V. S. (2015). Characterization of Brazilian tight gas sandstones relating permeability and Angstrom-to micron-scale pore structures. Journal of Natural Gas Science and Engineering, 27, 785–807.

    Article  Google Scholar 

  18. Tan, Y. S., Li, H. T., Zhou, X., Wang, K., Jiang, B. B., & Zhang, N. (2019). Inflow characteristics of horizontal wells in sulfur gas reservoirs: A comprehensive experimental investigation. Fuel, 238, 267–274.

    Article  Google Scholar 

  19. Wang, L., He, Y. M., Chen, H., Meng, Z., & Wang, Z. L. (2019). Experimental investigation of the live oil–water relative permeability and displacement efficiency on kingfisher waxy oil reservoir. Journal of Petroleum Science and Engineering, 178, 1029–1043.

    Article  Google Scholar 

  20. Wang, L., He, Y. M., Peng, X., Deng, H., Liu, Y. C., & Xu, W. (2020a). Pore structure characteristics of an ultradeep carbonate gas reservoir and their effects on gas storage and percolation capacities in the Deng IV member, Gaoshiti-Moxi Area, Sichuan Basin, SW China. Marine and Petroleum Geology, 111, 44–65.

    Article  Google Scholar 

  21. Wang, L., He, Y. M., Wang, Q., Liu, M. M., & Jin, X. (2020b). Multiphase flow characteristics and EOR mechanism of immiscible CO2 water-alternating-gas injection after continuous CO2 injection: A micro-scale visual investigation. Fuel, 282, 118689.

    Article  Google Scholar 

  22. Wang, L., Yang, S. L., Liu, Y. C., Xu, W., Deng, H., Meng, Z., Han, W., & Qian, K. (2017). Experimental investigation on gas supply capability of commingled production in a fracture-cavity carbonate gas reservoir. Petroleum Exploration and Development, 44, 824–833.

    Article  Google Scholar 

  23. Wu, Y. T., Pan, Z. J., Zhang, D. Y., Lu, Z. H., & Connell, L. D. (2018). Evaluation of gas production from multiple coal seams: A simulation study and economics. International Journal of Mining Science and Technology, 28, 359–371.

    Article  Google Scholar 

  24. Xiao, D. S., Jiang, S., Thul, D., Lu, S. F., Zhang, L. C., & Li, B. (2018). Impacts of clay on pore structure, storage and percolation of tight sandstones from the Songliao Basin, China: Implications for genetic classification of tight sandstone reservoirs. Fuel, 211, 390–404.

    Article  Google Scholar 

  25. Xu, J., Zhang, C. L., Peng, S. J., Jia, L., Guo, S. C., & Li, Q. X. (2018). Multiple layers superposed CBM system commingled drainage schedule and its optimization. Journal of China Coal Society, 43, 1677–1686.

    Google Scholar 

  26. Yang, X. F., Liu, Y. C., Li, J., Wang, Y., & Deng, H. (2012). Effect of separate layer recovery or multilayer commingled production and the optimal selection of development methods for two-layer gas reservoirs. Natural Gas Industry, 32, 57–60.

    Google Scholar 

  27. You, L. J., Li, L., Kang, Y. L., Shi, Y. J., Zhang, H. T., & Yang, X. M. (2012). Gas supply capacity of tight sandstone in considering effective stress and water saturation. Natural Gas Geoscience, 23, 764–769.

    Google Scholar 

  28. Zhao, S. H., Wang, Y. B., Li, Y., Wu, X., Hu, Y. J., Ni, X. M., & Liu, D. (2021). Co-production of tight gas and coalbed methane from single wellbore: A simulation study from Northeastern Ordos Basin, China. Natural Resources Research, 30, 1597–1612.

    Article  Google Scholar 

  29. Zhao, Y. L., & Wang, Z. M. (2019). Effect of interlayer heterogeneity on multi-seam coalbed methane production: A numerical study using a gray lattice Boltzmann model. Journal of Petroleum Science and Engineering, 174, 940–947.

    Article  Google Scholar 

  30. Zou, C. N., Zhu, R. K., Liu, K. Y., Su, L., Bai, B., Zhang, X. X., Yuan, X. J., & Wang, J. H. (2012). Tight gas sandstone reservoirs in China: Characteristics and recognition criteria. Journal of Petroleum Science and Engineering, 88, 82–91.

    Article  Google Scholar 

Download references

Acknowledgments

This study was supported by the Open Fund (PLC2020007) of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Chengdu University of Technology) and the National Natural Science Foundation of China (51774053). Furthermore, we would like to thank Dr. Xingli Xu for her valuable suggestions and support for this study.

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Correspondence to Lu Wang or Yongming He.

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Wang, L., He, Y., Wang, Q. et al. Improving Tight Gas Recovery from Multi-pressure System During Commingled Production: An Experimental Investigation. Nat Resour Res (2021). https://doi.org/10.1007/s11053-021-09869-7

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Keywords

  • Commingled production
  • Gas recovery
  • Progressive production method
  • Interlayer interference
  • Tight sandstone gas reservoir
  • Physical simulation experiment