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US 5,671,811 AGranted
Tube assembly for servicing a well head and having an inner coil tubing injected into an outer coiled tubing
OwnerPhilip Headinventor
Life of this patent
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Abstract
A tube assembly for servicing a well head injects an inner continuous coil tubing into an outer continuous coil tubing which can be connected at one end to a well head of an oil or gas reservoir. The inner coiled tubing can be connected to a tool string for servicing the well.
Claims11
A tube assembly for servicing a well head, comprising:
- a length of continuous first coiled tubing provided with means for fixed connection of one end of said first coiled tubing to a well head of oil or gas reservoir;
- a first reel receiving said first coiled tubing;
- a second reel of a continuous second coiled tubing on said first reel;
- and
- an injector for the injection of the second continuous coiled tubing into the continuous first coiled tubing.
2 more elements
A tube assembly for servicing a well head, comprising:
- a length of continuous first coiled tubing provided with means for fixed connection of one end of said first coiled tubing to a well head of oil or gas reservoir;
- a first reel receiving said first coiled tubing;
- a second reel of a continuous second coiled tubing on said first reel;
- a tool string connected to said second coiled tubing and having a diameter greater than an internal diameter of the first coiled tubing;
- and
- a riser connected to said first coiled tubing having an internal diameter greater than an outside diameter of said tool string.
3 more elements
A tube assembly for servicing a well head, comprising:
- a length of continuous first coiled tubing provided with means for fixed connection of one end of said first coiled tubing to a well head of oil or gas reservoir;
- a first reel receiving said first coiled tubing;
- a second reel of a continuous second coiled tubing on said first reel;
- and
- at least two support buoys connected by guide lines to the first coil tubing at intermittent points along its length.
2 more elements
Dependencies are inferred from the claim text.