Oilfield Glossary
Oilfield Glossary
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Tools

fracturing mandrel

1. n. [Well Completions, Well Workover and Intervention]
A sleeve with a flanged top connection upon which a frac tree is installed. The sleeve is inserted into a wellhead to isolate its low-pressure connections from the higher fracturing pressures. The fracturing mandrel enables the use of low-pressure wellheads that could not normally withstand the higher pressures necessary for hydraulic fracturing.