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Peak Gas Rate Forecast of Wells with DHC in Tight Sandstone Gas Reservoir

  • Yundong Xu
  • Yilin He
  • Qinglin Ai
  • Yalan Wang
Conference paper
Part of the Springer Series in Geomechanics and Geoengineering book series (SSGG)

Abstract

As the largest gas production unit and the key of the West–East natural gas transmission project, these years Changqing gas field is facing greater challenges and difficulties for the sharp increase of the gas consumption. Especially, every winter when peaking gas supply is needed, selected wells have to tap their potential to meet the requirement. The typical tight sandstone gas reservoir Sulige gas field plays a crucial role in the peak gas supply in winter. For the use of the down hole choke (DHC), the device should be removed before the wellhead heating equipment is installed. Due to the severe heterogeneity and huge difference in production, it is vital to select wells and predict their behavior at first. A rapid gas rate forecasting method for wells with DHC is introduced in this article by contrasting the gas rate and the casing pressure drop rate around the peak gas supply period for wells with long production history, and by analyzing the relationship between AOF and proration of newly developed wells. Field application in S1 block of Sulige gas field shows this method yields high accuracy and meets field’s requirement.

Keywords

Tight gas reservoir Down hole choke production mode Peak gas supply Peak gas rate forecast 

References

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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Yundong Xu
    • 1
    • 2
  • Yilin He
    • 1
    • 2
  • Qinglin Ai
    • 1
    • 2
  • Yalan Wang
    • 3
  1. 1.National Engineering Laboratory for Low-Permeability Petroleum Exploration and DevelopmentXianChina
  2. 2.Research Institute of Exploration and Development, Changqing Oilfield CompanyXianPeople’s Republic of China
  3. 3.Changqing Business DivisionPetrochina Logging CompanyBeijingChina

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