Spooled coiled tubing strings for use in wellbores

Details Spooled coiled tubing strings for use in wellbores Spooled coiled tubing strings for use in wellbores

1998-04-21

2000-07-04

Tsay, Frank S.

Wells

Processes

With indicating, testing, measuring or locating

166 771, 166 772, E21B 4700

Patent

active

060824549

ABSTRACT:
This invention provides oilfield spooled coiled tubing production and completion strings assembled at the surface to include sensors and one or more controlled devices which can be tested from a remote location. The devices may have upsets in the coiled tubing. The strings preferably include conductors and hydraulic lines in the coiled tubing. The conductors provide power and data communication between the sensors, devices and surface instrumentation. The coiled tubing strings are preferably tested at the assembly site and transported to the well site one reels. The coiled tubing strings are inserted and retrieved from the wellbores utilizing an adjustable opening injector head system.

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patent: 5765643 (1998-06-01), Shaaban et al.
"Coiled Tubing . . . operations and services"; Oil World, Nov. 1991, No. 11, Houston, Texas; pp. 41-47.

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