|
| US4627501 | 22 Feb 1985 | 9 Dic 1986 | Turmag-Turbo-Maschinen-Aktiengesellschaft Nuesse & Graefer | Borer head with planetary gearing |
| US4662023 | 8 May 1985 | 5 May 1987 | Westinghouse Electric Corp. | Ice removal auger for ice condenser containment |
| US4682660 | 12 Dic 1985 | 28 Jul 1987 | Soletanche | Hydro-drill with circular impression |
| US4793425 | 25 Nov 1987 | 27 Dic 1988 | | Profiled body roller-reamer stabilizer |
| US6234719 | 2 Jul 1999 | 22 May 2001 | Njal Underhaug | Mobile combined drilling and piling machine and method for tubular foundation with machine |
| US6260617 | 4 Nov 1998 | 17 Jul 2001 | Superior Energy Services, L.L.C. | Skate apparatus for injecting tubing down pipelines |
| US6484820 | 27 Sep 1999 | 26 Nov 2002 | Wirth Maschinen-Und Bohrgeraete Fabrik GmbH | Method and device for driving bore-holes, especially in the sea bed, using a guide tip |
| US6651744 | 2 Abr 2002 | 25 Nov 2003 | Superior Services, LLC | Bi-directional thruster pig apparatus and method of utilizing same |
| US6854533 | 20 Dic 2002 | 15 Feb 2005 | Weatherford/Lamb, Inc. | Apparatus and method for drilling with casing |
| US6857487 | 30 Dic 2002 | 22 Feb 2005 | Weatherford/Lamb, Inc. | Drilling with concentric strings of casing |
| US6868906 | 4 Jun 2002 | 22 Mar 2005 | Weatherford/Lamb, Inc. | Closed-loop conveyance systems for well servicing |
| US6896075 | 11 Oct 2002 | 24 May 2005 | Weatherford/Lamb, Inc. | Apparatus and methods for drilling with casing |
| US6899186 | 13 Dic 2002 | 31 May 2005 | Weatherford/Lamb, Inc. | Apparatus and method of drilling with casing |
| US6953096 | 31 Dic 2002 | 11 Oct 2005 | Weatherford/Lamb, Inc. | Expandable bit with secondary release device |
| US6994176 | 5 Mar 2004 | 7 Feb 2006 | Weatherford/Lamb, Inc. | Adjustable rotating guides for spider or elevator |
| US7004264 | 14 Mar 2003 | 28 Feb 2006 | Weatherford/Lamb, Inc. | Bore lining and drilling |
| US7013997 | 15 Dic 2003 | 21 Mar 2006 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7025142 | 3 Nov 2003 | 11 Abr 2006 | Superior Energy Services, LLC | Bi-directional thruster pig apparatus and method of utilizing same |
| US7036610 | 6 Jul 2002 | 2 May 2006 | Weatherford / Lamb, Inc. | Apparatus and method for completing oil and gas wells |
| US7040420 | 19 Nov 2003 | 9 May 2006 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7048050 | 2 Oct 2003 | 23 May 2006 | Weatherford/Lamb, Inc. | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7073598 | 23 Jul 2003 | 11 Jul 2006 | Weatherford/Lamb, Inc. | Apparatus and methods for tubular makeup interlock |
| US7083005 | 31 May 2005 | 1 Ago 2006 | Weatherford/Lamb, Inc. | Apparatus and method of drilling with casing |
| US7090021 | 16 Mar 2004 | 15 Ago 2006 | | Apparatus for connecting tublars using a top drive |
| US7090023 | 9 May 2005 | 15 Ago 2006 | Weatherford/Lamb, Inc. | Apparatus and methods for drilling with casing |
| US7093675 | 1 Ago 2001 | 22 Ago 2006 | Weatherford/Lamb, Inc. | Drilling method |
| US7096982 | 27 Feb 2004 | 29 Ago 2006 | Weatherford/Lamb, Inc. | Drill shoe |
| US7100710 | 18 Dic 2003 | 5 Sep 2006 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7100713 | 2 Abr 2001 | 5 Sep 2006 | Weatherford/Lamb, Inc. | Expandable apparatus for drift and reaming borehole |
| US7108084 | 24 Dic 2003 | 19 Sep 2006 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7117957 | 25 May 2004 | 10 Oct 2006 | Weatherford/Lamb, Inc. | Methods for drilling and lining a wellbore |
| US7128154 | 29 Ene 2004 | 31 Oct 2006 | Weatherford/Lamb, Inc. | Single-direction cementing plug |
| US7128161 | 20 Sep 2005 | 31 Oct 2006 | Weatherford/Lamb, Inc. | Apparatus and methods for facilitating the connection of tubulars using a top drive |
| US7131505 | 22 Feb 2005 | 7 Nov 2006 | Weatherford/Lamb, Inc. | Drilling with concentric strings of casing |
| US7137454 | 13 May 2005 | 21 Nov 2006 | Weatherford/Lamb, Inc. | Apparatus for facilitating the connection of tubulars using a top drive |
| US7140445 | 5 Mar 2004 | 28 Nov 2006 | Weatherford/Lamb, Inc. | Method and apparatus for drilling with casing |
| US7147068 | 5 Dic 2003 | 12 Dic 2006 | Weatherford / Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7165634 | 2 Oct 2003 | 23 Ene 2007 | Weatherford/Lamb, Inc. | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7188687 | 27 Jul 2004 | 13 Mar 2007 | Weatherford/Lamb, Inc. | Downhole filter |
| US7191840 | 5 Mar 2004 | 20 Mar 2007 | Weatherford/Lamb, Inc. | Casing running and drilling system |
| US7213656 | 26 Abr 2004 | 8 May 2007 | Weatherford/Lamb, Inc. | Apparatus and method for facilitating the connection of tubulars using a top drive |
| US7216727 | 21 Dic 2000 | 15 May 2007 | Weatherford/Lamb, Inc. | Drilling bit for drilling while running casing |
| US7219744 | 29 Nov 2005 | 22 May 2007 | Weatherford/Lamb, Inc. | Method and apparatus for connecting tubulars using a top drive |
| US7228901 | 1 Dic 2005 | 12 Jun 2007 | Weatherford/Lamb, Inc. | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7234542 | 9 Feb 2006 | 26 Jun 2007 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7264067 | 1 Oct 2004 | 4 Sep 2007 | Weatherford/Lamb, Inc. | Method of drilling and completing multiple wellbores inside a single caisson |
| US7284617 | 20 May 2004 | 23 Oct 2007 | Weatherford/Lamb, Inc. | Casing running head |
| US7303022 | 27 Abr 2004 | 4 Dic 2007 | Weatherford/Lamb, Inc. | Wired casing |
| US7311148 | 9 Feb 2004 | 25 Dic 2007 | Weatherford/Lamb, Inc. | Methods and apparatus for wellbore construction and completion |
| US7325610 | 5 Mar 2004 | 5 Feb 2008 | Weatherford/Lamb, Inc. | Methods and apparatus for handling and drilling with tubulars or casing |
| US7334650 | 2 Feb 2004 | 26 Feb 2008 | Weatherford/Lamb, Inc. | Apparatus and methods for drilling a wellbore using casing |
| US7360594 | 5 Mar 2004 | 22 Abr 2008 | Weatherford/Lamb, Inc. | Drilling with casing latch |
| US7370707 | 5 Abr 2004 | 13 May 2008 | Weatherford/Lamb, Inc. | Method and apparatus for handling wellbore tubulars |
| US7413020 | 5 Mar 2004 | 19 Ago 2008 | Weatherford/Lamb, Inc. | Full bore lined wellbores |
| US7445057 | 12 Ene 2006 | 4 Nov 2008 | Global Innovations, LLC | Method and apparatus for introducing elongate members into the ground |
| US7503397 | 29 Jul 2005 | 17 Mar 2009 | Weatherford/Lamb, Inc. | Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly |
| US7509722 | 5 Mar 2003 | 31 Mar 2009 | Weatherford/Lamb, Inc. | Positioning and spinning device |
| US7617866 | 8 Sep 2005 | 17 Nov 2009 | Weatherford/Lamb, Inc. | Methods and apparatus for connecting tubulars using a top drive |
| US7650944 | 11 Jul 2003 | 26 Ene 2010 | Weatherford/Lamb, Inc. | Vessel for well intervention |
| US7712523 | 14 Mar 2003 | 11 May 2010 | Weatherford/Lamb, Inc. | Top drive casing system |
| US7730965 | 30 Ene 2006 | 8 Jun 2010 | Weatherford/Lamb, Inc.
Shell Oil Company | Retractable joint and cementing shoe for use in completing a wellbore |
| US7857052 | 11 May 2007 | 28 Dic 2010 | Weatherford/Lamb, Inc. | Stage cementing methods used in casing while drilling |
| US7938201 | 28 Feb 2006 | 10 May 2011 | Weatherford/Lamb, Inc. | Deep water drilling with casing |
| USRE42877 | 9 Jul 2010 | 1 Nov 2011 | Weatherford/Lamb, Inc. | Methods and apparatus for wellbore construction and completion |
