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Research and Application of Plunger Airlift Draining Gas Recovery Intelligent Control Technology in Shale Gas Horizontal Wells

  • INNOVATIVE TECHNOLOGIES OF OIL AND GAS
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Chemistry and Technology of Fuels and Oils Aims and scope

For shale gas wells, plunger lift is challenged by the difficulties like difficult tool tripping in and high operation risks due to the liquid phase slippage in deviated sections, which also affect the plunger lifting efficiency. To address the liquid phase slippage and liquid loading in wellbores, a new plunger limiter and preset working barrel for the plunger are used and proved to have improved the operating depth of the plunger and the efficiency of plunger lift. By optimizing the length and type of the tool string, the plunger limiter can be set at an inclination angle close to 70° and fit better for shale gas wells with less water production, prolonging the effective period of the plunger technology and expanding the application range of the plunger technology. A plunger process intelligent management system based on PI real-time database is developed. An intelligent diagnosis and optimization model is established. At present, the system is applied to more than 300 gas wells, reducing the economic cost by 70% and improving the process effect by 15%, which has the value of field popularization and application.

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Acknowledgements

This research is strongly supported by the scientific research project of PetroChina Southwest Oil and gas field company “Deepening Application Research of plunger process intelligent management system” (Project No. 20210309-07). In addition, we would also like to thank Sichuan Changning natural gas exploration and Development Co., Ltd. for providing process test wells for the project.

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Authors and Affiliations

  1. Engineering Technology Research Institute of PetroChina Southwest Oil & Gasfield Company, Chengdu, China

    Zhi Yang, Jian Yang & Fengjing Sun

  2. PetroChina Southwest Oil & Gasfield Company, Chengdu, China

    Qiang Wang

Authors
  1. Zhi Yang
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  2. Jian Yang
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  3. Qiang Wang
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  4. Fengjing Sun
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Correspondence to Zhi Yang.

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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 3, pp. 115–119 May–June, 2022.

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Yang, Z., Yang, J., Wang, Q. et al. Research and Application of Plunger Airlift Draining Gas Recovery Intelligent Control Technology in Shale Gas Horizontal Wells. Chem Technol Fuels Oils 58, 554–560 (2022). https://doi.org/10.1007/s10553-022-01419-y

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  • DOI: https://doi.org/10.1007/s10553-022-01419-y

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