EP 1244866 A1 20021002 - IMPROVED METHOD FOR THE DRILLING OF OIL WELLS
Title (en)
IMPROVED METHOD FOR THE DRILLING OF OIL WELLS
Title (de)
VERBESSERTES VERFAHREN ZUM BOHREN VON ÖLBOHRLÖCHERN
Title (fr)
PROCEDE AMELIORE DE FORAGE DE PUITS DE PETROLE
Publication
Application
Priority
- EP 0013370 W 20001228
- IT MI20000007 A 20000105
Abstract (en)
[origin: WO0153655A1] Method for the drilling of oil wells and for the positioning of the appropriate casings, consisting in drilling the well section of interest and, during the drilling, in maintaining a high degree of hole regularity by the use of automatic verticality and/or curvature control equipment. This method allows the positioning of casings with an almost constant clearance with values of +/- 1.5 inches for the whole well depth (lean profile).
IPC 1-7
IPC 8 full level
E21B 7/04 (2006.01); E21B 43/10 (2006.01); E21B 44/00 (2006.01)
CPC (source: EP US)
E21B 7/04 (2013.01 - EP US); E21B 43/10 (2013.01 - EP US); E21B 44/00 (2013.01 - EP US)
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)
WO 0153655 A1 20010726; AU 3367601 A 20010731; BR 0016888 A 20021008; CA 2396282 A1 20010726; CN 1420958 A 20030528; EA 200200605 A1 20030227; EP 1244866 A1 20021002; IT 1316157 B1 20030403; IT MI20000007 A0 20000105; IT MI20000007 A1 20010705; MA 25880 A1 20031001; MX PA02006734 A 20021023; NO 20023169 D0 20020628; NO 20023169 L 20020702; OA 12135 A 20060505; US 2002189864 A1 20021219
DOCDB simple family (application)
EP 0013370 W 20001228; AU 3367601 A 20001228; BR 0016888 A 20001228; CA 2396282 A 20001228; CN 00818206 A 20001228; EA 200200605 A 20001228; EP 00991655 A 20001228; IT MI20000007 A 20000105; MA 26717 A 20020701; MX PA02006734 A 20001228; NO 20023169 A 20020628; OA 1200200205 A 20001228; US 16852602 A 20020628