Method of avoiding the need for a scraper run in drill out...

Details Method of avoiding the need for a scraper run in drill out... Method of avoiding the need for a scraper run in drill out...

E - Fixed Constructions

21

B

E21B 37/02 (2006.01) E21B 10/26 (2006.01) E21B 12/06 (2006.01)

Patent

CA 2487380

A method of avoiding the need for a scraper run in drill out operations. The method involves the single step of incorporating a rotary scraper into the downhole drilling motor assembly in such a manner that the rotary scraper rotates with the drill bit and follows the drill bit to scrape debris from interior casing walls.

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