| US 7,588,084 B2 | ||
| Method for releasing cables from an attached well tool and apparatus for exercising the method | ||
| Jørgen Hallundbæk, Græsted (Denmark) | ||
| Assigned to Welltec A/S, Allerød (Denmark) | ||
| Appl. No. 10/532,215 PCT Filed Oct. 24, 2002, PCT No. PCT/DK02/00708 § 371(c)(1), (2), (4) Date Apr. 22, 2005, PCT Pub. No. WO2004/038171, PCT Pub. Date May 06, 2004. |
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| Prior Publication US 2006/0011338 A1, Jan. 19, 2006 | ||
| Int. Cl. E21B 29/04 (2006.01) | ||
| U.S. Cl. 166—297 [166/54.5] | 13 Claims |
| 1. Method for releasing cables (2) from an attached well tool, wherein a cable cutter (6) is arranged between the main part of a cable and a well tool, said cable cutter being controlled by an electronic timer,
the method comprising:
using at least three parameters for controlling the cutter: a pulling force exerted by the cable on the well tool, the pressure
in the well location, and time; and
resetting the timer from currents in the cable (2) through the use of an interface pick-up (3).
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