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This is a Case Report study (also classified as: Observational).

Wellbore Flow Behavior and Natural Flow Cessation Prediction in Ultra‐Deep Wells: A Case Study of Shunbei Oilfield

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The study shows a new model predicting wellbore flow pressure with less than 3% error in ultra-deep wells.
Using high-pressure physical parameters, the new liquid holdup model outperforms conventional models in accuracy.
By implementing nodal system analysis, a reliable prediction method for flow cessation is established.
Validation with Shunbei Oilfield wells confirms the effectiveness of the new prediction approach.

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This analysis demonstrates improved flow pressure predictions in self-flowing wells, indicating better reservoir management in ultra-deep settings.

Longbo et al. (2025) studied this question.

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This analysis demonstrates improved flow pressure predictions in self-flowing wells, indicating better reservoir management in ultra-deep settings.