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Oilfield Glossary
Oilfield Glossary
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run in hole

1. vb. [Drilling]
To connect pipe together and lower the connected length into the borehole in a controlled fashion. The pipe lengths are usually screwed together either with rotary-shouldered connections for the drillstring, or threaded and coupled connections for casing, liners and most tubing.
See: RIH, round trip