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08497 A Study of Pressure Limits of Double Q&T P110/Q125 in Low H2S Environments

Product Number: 51300-08497-SG
ISBN: 08497 2008 CP
Author: Ming Gao, Ravi Krishnamurthy, David Lewis, and Bruce Urband
Publication Date: 2008
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$20.00
$20.00
A study of applicability limits of Double Q&T P110/Q125 for casing and tubing in low H2S environments is presented. The study adopted an interdisciplinary approach that combines chemical modeling, material characterization and fracture mechanics. Chemical modeling calculates H2S solubility in aqueous phase in HTHP wellbore environments. Characterization of material quantifies materials’ susceptibility to hydrogen sulfide stress cracking in the simulated H2S environments. Fracture mechanics based FAD analysis using the tested material data to calculate Pressure Limit for preventing sulfide stress cracking. In the paper, the approach is discussed first. The applicability limits of Double Q&T P110/Q in various low-concentration H2S well environmental conditions are presented. Tables that can be used for material selection, design and inspection are illustrated and discussed.
A study of applicability limits of Double Q&T P110/Q125 for casing and tubing in low H2S environments is presented. The study adopted an interdisciplinary approach that combines chemical modeling, material characterization and fracture mechanics. Chemical modeling calculates H2S solubility in aqueous phase in HTHP wellbore environments. Characterization of material quantifies materials’ susceptibility to hydrogen sulfide stress cracking in the simulated H2S environments. Fracture mechanics based FAD analysis using the tested material data to calculate Pressure Limit for preventing sulfide stress cracking. In the paper, the approach is discussed first. The applicability limits of Double Q&T P110/Q in various low-concentration H2S well environmental conditions are presented. Tables that can be used for material selection, design and inspection are illustrated and discussed.
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