Abstract
Wellhead seals are a key component of reservoir and salt-cavern storage wells that function to seal the well from the external environment and separate stored fluids contained within the well. Loss of integrity of these seals or seal failures are a common occurrence in the storage industry. Practical guidelines on how to choose the proper sealing components and prevent seals from failing are generally lacking.
In this study, data related to wellhead sealing were compiled through a literature review, discussions with wellhead experts, and a survey distributed to Pipeline Research Council International (PRCI) members and others involved in the industry. Through the evaluation of this data, meaningful parameters involved in successful and failed seals were identified and best practice recommendations were provided on seal selection and wellhead design.
There is a related webinar.
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PR-591-20700-R01 Wellhead Seals Best Practices
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