Method and apparatus using flexible hose in logging highly...

Details Method and apparatus using flexible hose in logging highly... Method and apparatus using flexible hose in logging highly...

E - Fixed Constructions

21

B

166/3

E21B 47/00 (2006.01) E21B 23/08 (2006.01) E21B 36/00 (2006.01) E21B 47/01 (2006.01)

Patent

CA 1086636

METHOD AND APPARATUS USING FLEXIBLE HOSE IN LOGGING HIGHLY DEVIATED OR VERY HOT EARTH BOREHOLES Abstract of the Disclosure. After drilling an earth borehole, the drill pipe and drill bit are removed from the bore- hole and the drill pipe is reinserted into the borehole. A flexible hose such as a fire hose, and having a retro-nozzle at its lower end, is then pumped down through the interior of the drill pipe and a portion of the hose is pumped out through the end of the drill pipe for a desired distance. A well logging instrument is pumped through the flexible hose which extends down past the bottom of the drill pipe and well logging operations are performed through the flexible hose. In very hot wells, the drilling mud or other circulating fluid can continue to be pumped through the flexible hose to provide cooling of the well logging instrument.

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