Downhole scraper assembly

Details Downhole scraper assembly Downhole scraper assembly

E - Fixed Constructions

21

B

E21B 37/02 (2006.01)

Patent

CA 2339592

This invention relates to apparatus for scraping the inner surface of a wellbore. A scraper assembly (2) is provided comprising a scraper element (6) incorporating: a generally cylindrical member defined by a wall having a slot extending through the wall thickness; and at least one tooth member provided on the outer surface of the wall for scraping engagement with a wellbore. The present invention thereby provides a scraper assembly which is relatively convenient and inexpensive to manufacture and which may be considered as a disposable item of downhole equipment.

L'invention concerne un appareil permettant de racler la surface intérieure d'un forage. Cet ensemble racleur (2) est pourvu d'un élément racleur (6) comprenant: un élément généralement cylindrique défini par une paroi sur laquelle est ménagée une fente qui traverse l'épaisseur de la paroi; et au moins un élément denté placé sur la surface extérieure de ladite paroi pour entrer en contact avec le forage et racler celui-ci. La présente invention concerne donc un ensemble racleur relativement pratique dont le coût de fabrication est peu élevé, cet ensemble pouvant par ailleurs être considéré comme un accessoire jetable d'un équipement de fond.

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