Oil & Gas Glossary 1.0
OIL & GAS TECHNICAL TERMS GLOSSARY
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Search Result for Rathole
rathole
2. a hole of a diameter smaller than the main hole and drilled in the bottom of the main hole.
rathole
V: to reduce the size of the wellbore and drill ahead.
ream
To enlarge the wellbore by drilling it again with a special bit. Often a rathole is reamed or opened to the same size as the main wellbore. See rathole.
rathole
V: to reduce the size of the wellbore and drill ahead.
rathole
1. a hole in the rig floor, 30 to 35 feet (9 to 11 meters) deep, which is lined with casing that projects above the floor and into which the kelly and swivel are placed when hoisting operations are in progress.
rathole
2. a hole of a diameter smaller than the main hole and drilled in the bottom of the main hole.