Drilling Tools
Circulating Sub
The Circulating Sub is connected between wellhead pipe string and ground circulating system. When casing is running or completed, the circulating sub can be connected to provide fluid circulation. According to the application, circulating sub is connected between Kelly and casing or between casing and a hose.
Technical Data
| Item | Value |
|---|---|
| classification | Drilling Tools |
| source | Tianhe Catalogue / Website |
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