The drift diameter used depends on the size and weight of the tubular being checked.

所用的通径取决于被检查管子的直径和重量。

youdao

A slang term for an internal drift diameter gauge typically used to check casing or tubing joints before they are picked up and run into the wellbore.

在套管单根或油管单根被提起和下入井筒以前对其进行检查所用的内通径规的习用语。

youdao