Coiled tubing hanger

Details Coiled tubing hanger Coiled tubing hanger

E - Fixed Constructions

21

B

166/62

E21B 23/00 (2006.01) E21B 33/04 (2006.01) E21B 33/068 (2006.01) E21B 33/08 (2006.01)

Patent

CA 1276546

ABSTRACT OF THE DISCLOSURE THE INVENTION RELATES TO A COILED, ENDLESS, TUBING HANGER, FOR POSITIVE CONTROL OF WELL BORE PRESUSRE. A HANGER TOOL IS PROVIDED FOR USE WITH COILED TUBING STRINGS WHEN THE STRINGS ARE BEING INSTALLED IN NEW OR EXISTING CASED WELL BORES. MEANS ARE PROVIDED HYDRAULICALLY TO SEAL OFF WELL BORE PRESSURE BETWEEN THE OUTSIDE DIAMETER OF THE COILED TUBING STRING AND THE ANNUULUS OF THE HANGER TOOL DURING INSTALLATION OR REMOVAL OF THE COILED TUBING STRINGS. MEANS ARE ALSO PROVIDED TO RETAIN AND SUSPEND COILED TUBING STRINGS IN CASED WELL BORES OVER EXTENDED PERIODS OF TIME, OR, INDEFINITELY. MECHANICAL MEANS ARE PROVIDED TO SEAL OFF WELL BORE PRERSSURE BETWEEN THE OUTSIDE SURFACE OF THE COILED TUBING STRING AND THE ANNULUS OF THE HANGER TOOL DURING EXTENDED OR PERMANENT INSTALLATIONS OF COILED TUBING STRINGS IN CASED WELL BORES THROUGH TRANSFER OF THE COILED TUBING STRING PLATE MEANS BY WHICH BOTH THE HYDRAULIC AND MECHANICAL SEALS USE THE SAME SEALING PACK-OFF ELEMENTS.

602243

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