LANDING SUB
No-go device
The LANDING SUB* acts as a “no-go” for landing and activating a multifunction circulating tool or other devices. Typically, this operation occurs on a liner-top polished-bore receptacle or on another similar internal-diameter restriction.
The unit is manufactured from one piece with box-up/pin-down drillpipe connections and comprises a central set of large, tapered, fluted outer lugs.
Features
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Landing on liner top, polished-bore receptacle or other suitable shoulder
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One-piece, rugged construction
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No restriction in internal diameter
Advantages
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