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US 6,464,014 B1Granted
Downhole coiled tubing recovery apparatus
OwnerHenry A. Bernatinventor
Life of this patent
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OwnerHenry A. Bernatinventor
Estimating the term…
A downhole coiled tubing recovery apparatus and method which utilizes vibration and resonant vibration in particular, to remove coiled tubing and/or other objects which are stuck or jammed downhole in a well. In a preferred embodiment the coiled tubing recovery apparatus includes an oscillating apparatus suspended from a rig and fitted with a coiled tubing bail for mounting the coiled tubing and the method includes guiding the coiled tubing from a reel through the bail and into and from an injector head and the well, responsive to raising and lowering of the oscillating apparatus and the tubing bail. One or more rod clamps are typically used in connection with the coiled tubing bail for manipulating the coiled tubing through the injector head to and from the reel. In another embodiment of the invention the coiled tubing bail is omitted and the coiled tubing is suspended directly from a fitting attached to the oscillator and extends through the injector head into the well.
A coiled tubing recovery apparatus for freeing coiled tubing in a well, comprising a vibrator suspended above the well and a coupler carried by said vibrator for connecting the coiled tubing to said vibrator and vibrating the coiled tubing responsive to operation of said vibrator.
A coiled tubing recovery apparatus for freeing coiled tubing extending through an injector head in a well, said apparatus comprising a vibrator suspended above the well and engaging the coiled tubing, for vibrating the coiled tubing responsive to operation of said vibrator.
A coiled tubing recovery apparatus for freeing coiled tubing extending from a reel through an injector head into a well said apparatus comprising a vibrator suspended above the well;
A method for freeing coiled tubing in a well comprising suspending a vibrating apparatus over the well, attaching the coiled tubing to the vibrating apparatus and operating the vibrating apparatus to vibrate the coiled tubing in the well.
A method for freeing coiled tubing in a well having an injector head, comprising suspending a vibrating apparatus over the well and the injector head;
Dependencies are inferred from the claim text.