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Advanced pumping rod outage methodology



Dubinov Yu.S. (Gubkin State Oil and Gas University, RF, Moscow) 

E-mail: dubinovys@gmail.com

This pumping rod outage analysis covers numerous wells across Samotlor, Usinsk, and Romashkino fields, it reveals most outage cases appear attributable to excess rod body pressure and stress levels. The existing methodologies designed to calculate this pressure appear to fail concerning all equipment performance drivers. The case for directional wells was assumed the worst case in this respect. This methodology makes far better provisions for pumping rod design aspects and material properties. The paper documents directional well stress curves for axial longitudinal pressure under different curvature radii (both authors curves and Oding curves were used here). This study proves a good correlation with real-world well behaviour.

References

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