EP 1937929 A1 20080702 - DRILL STRING SUSPENSION
Title (en)
DRILL STRING SUSPENSION
Title (de)
BOHRSTRANGAUFHÄNGUNG
Title (fr)
SUSPENSION DE TRAIN DE TIGES DE FORAGE
Publication
Application
Priority
- NZ 2006000244 W 20060921
- NZ 54270005 A 20050927
Abstract (en)
[origin: WO2007037704A1] Vertical and/or directional drilling apparatus where compliant support (air bag, magnetic or the like) is provided for a vibrational head and drive assembly that carries the drill string. With the vibrational head having a shuttle from which vibration is not directly taken and with the compliant support allowing pull back in the directional mode several advantages arise.
IPC 8 full level
E21B 7/24 (2006.01); E21B 28/00 (2006.01)
CPC (source: EP KR US)
E21B 7/24 (2013.01 - EP KR US); E21B 28/00 (2013.01 - KR)
Citation (search report)
See references of WO 2007037704A1
Citation (third parties)
Third party :
- WO 2005087393 A1 20050922 - FLEXIDRILL LTD [NZ], et al
- WO 2004113668 A1 20041229 - FLEXIDRILL LTD [NZ], et al
- US 3509948 A 19700505 - BESNARD PIERRE
- US 5117925 A 19920602 - WHITE JOHN L [US]
- US 4217677 A 19800819 - SUMIKAWA SATOSHI [JP]
- US 2441766 A 19480518 - JARDINE GEORGE W
- US 6412560 B1 20020702 - BERNAT HENRY A [US]
- US 5263544 A 19931123 - WHITE JOHN L [US]
- US 6049508 A 20000411 - DEFLANDRE JEAN-PIERRE [FR]
- US 2005155758 A1 20050721 - WEBB LLOYD A [US], et al
- US 2061806 A 19361124 - WARREN NOBLE
- US 5417290 A 19950523 - BARROW JEFFREY C [US]
- US 4429743 A 19840207 - BODINE ALBERT G [US]
- US 3684037 A 19720815 - BODINE ALBERT G
- US 4645017 A 19870224 - BODINE ALBERT G [US]
- US 6290005 B1 20010918 - KLEMM GUENTER [AT]
- US 4067405 A 19780110 - BASSINGER GREY
- US 4171025 A 19791016 - BASSINGER GREY [US]
- US 5281775 A 19940125 - GREMILLION ERNEST J [US]
- US 587388 A 18970803
- US 4719976 A 19880119 - BLEICHER MANFRED [DE], et al
- US 6739410 B2 20040525 - SMITH BRIAN [US], et al
- US 4253531 A 19810303 - BOROS LADISLAV J
- US 3199614 A 19650810 - BODINE JR ALBERT G
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
WO 2007037704 A1 20070405; AU 2006295513 A1 20070405; AU 2006295513 B2 20110210; BR PI0616445 A2 20110621; CA 2623012 A1 20070405; CN 101283159 A 20081008; EA 012662 B1 20091230; EA 200800944 A1 20081230; EP 1937929 A1 20080702; JP 2009510289 A 20090312; KR 20080053504 A 20080613; NZ 542700 A 20080530; TW 200726900 A 20070716; US 2010139912 A1 20100610; ZA 200802507 B 20081231
DOCDB simple family (application)
NZ 2006000244 W 20060921; AU 2006295513 A 20060921; BR PI0616445 A 20060921; CA 2623012 A 20060921; CN 200680035849 A 20060921; EA 200800944 A 20060921; EP 06799594 A 20060921; JP 2008533282 A 20060921; KR 20087009209 A 20080417; NZ 54270005 A 20050927; TW 95135826 A 20060927; US 99259806 A 20060921; ZA 200802507 A 20080318