Technique and System for Intervening in a Wellbore Using Multiple Reels of Coiled Tubing
OwnerJohn Lovell, Warren Zemlak +1inventors
InventorsJohn Lovell, Warren Zemlak, L. McKee
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Abstract
A method that is usable with a well includes changing a connection between a first coiled tubing segment and a second coiled tubing segment while an upper end of the first coiled tubing section is out of the well and a portion of the first coiled tubing segment is deployed in the well. After the connection is changed, the method includes deploying the remainder of the first coiled tubing segment into the well or retrieving the portion of the first coiled tubing segment from the well.
Claims17
A method usable with a well, comprising:
- changing a connection between a first coiled tubing segment and a second coiled tubing segment while an upper portion of the first coiled tubing segment is out of the well and the remainder of the first coiled tubing segment is deployed in the well;
- and
- subsequently deploying the upper portion of the first coiled tubing segment into the well or retrieving the remainder of the first coiled tubing segment from the well.
A system usable with a well, comprising:
- a first coiled tubing segment;
- a second coiled tubing segment;
- and
- slips to secure an upper end of the first coiled tubing segment when the first coiled tubing segment is partially deployed in the well to permit the second coiled tubing segment to be selectively connected to or disconnected from the first coiled tubing segment.
A method of deploying coiled tubing in a wellbore, comprising:
- providing a coiled tubing connector having a body with a longitudinal bore therethrough, the body having a first end section and a second end section sections, each end section having a tapered external surface, and a stiff section disposed between the first and the second end sections;
- disposing the first end section within a first coiled tubing, the first coiled tubing having at least an end portion having a first wall thickness;
- disposing the second end section within a second coiled tubing, the second coiled tubing having at least an end portion having a second wall thickness different than the first wall thickness;
- securing the stiff section to the inner diameter of each of the first and second coiled tubings, thereby forming a connected tubing;
- and
- lowering the connected tubing into a wellbore.
Dependencies are inferred from the claim text.