EP 1120542 A2 20010801 - Air drilling system and method for containing and separating cuttings
Title (en)
Air drilling system and method for containing and separating cuttings
Title (de)
Luftbohreinrichtung und Verfahren zur Lagerung und Abscheidung des Bohrkleins
Title (fr)
Système de forage à l'air et procéde pour contenir et séparer les débris de forage
Publication
Application
Priority
US 49251500 A 20000127
Abstract (en)
Cuttings are removed from air drilling fluid used in an air drilling system by delivering the cuttings and air drilling fluid into an air-tight enclosure (22), decreasing the flow rate of the air through the enclosure (22) to allow the cuttings to settle and separate from the airflow and be contained within the enclosure (22). The air, substantially devoid of the cuttings, is discharged. The enclosure (22) is positioned at an angle to facilitate the discharge of the contained cuttings. Preferably, the enclosure (22) is of a size which will allow it to be transported on public highways without special movement permits, and the exhilarating equipment used may be contained within the enclosure (22) during transportation. <IMAGE>
IPC 1-7
IPC 8 full level
E21B 21/07 (2006.01); E21B 21/14 (2006.01)
CPC (source: EP)
E21B 21/07 (2013.01); E21B 21/14 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1120542 A2 20010801; EP 1120542 A3 20010905; CA 2330416 A1 20010727
DOCDB simple family (application)
EP 01100898 A 20010116; CA 2330416 A 20010108