|
| US3971437 | 21 Abr 1975 | 27 Jul 1976 | | Apparatus for dewatering boreholes |
| US4253676 | 15 Jun 1979 | 3 Mar 1981 | Halliburton Company | Inflatable packer element with integral support means |
| US4403660 | 8 Ago 1980 | 13 Sep 1983 | MGC Oil Tools, Inc. | Well packer and method of use thereof |
| US4406461 | 12 Mar 1982 | 27 Sep 1983 | Schlumberger Technology Corporation | Inflatable well packer apparatus reinforced with tire cording |
| US4413653 | 8 Oct 1981 | 8 Nov 1983 | Halliburton Company | Inflation anchor |
| US4630691 | 26 Dic 1984 | 23 Dic 1986 | | Annulus bypass peripheral nozzle jet pump pressure differential drilling tool and method for well drilling |
| US4768590 | 29 Jul 1986 | 6 Sep 1988 | TAM International, Inc. | Inflatable well packer |
| US4892144 | 26 Ene 1989 | 9 Ene 1990 | Davis-Lynch, Inc. | Inflatable tools |
| US4923007 | 15 Nov 1988 | 8 May 1990 | Tam International | Inflatable packer with improved reinforcing members |
| US5101908 | 23 Ago 1990 | 7 Abr 1992 | Baker Hughes Incorporated | Inflatable packing device and method of sealing |
| US5143154 | 25 Sep 1991 | 1 Sep 1992 | Baker Hughes Incorporated | Inflatable packing element |
| US5219028 | 25 Feb 1992 | 15 Jun 1993 | Conoco Inc. | Well casing and well casing method |
| US5224540 | 12 May 1992 | 6 Jul 1993 | Halliburton Company | Downhole tool apparatus with non-metallic components and methods of drilling thereof |
| US5271468 | 21 Jun 1991 | 21 Dic 1993 | Halliburton Company | Downhole tool apparatus with non-metallic components and methods of drilling thereof |
| US5327962 | 6 Ago 1992 | 12 Jul 1994 | | Well packer |
| US5390737 | 29 Jul 1993 | 21 Feb 1995 | Halliburton Company | Downhole tool with sliding valve |
| US5417289 | 30 Dic 1993 | 23 May 1995 | | Inflatable packer device including limited initial travel means and method |
| US5469919 | 30 Dic 1993 | 28 Nov 1995 | | Programmed shape inflatable packer device and method |
| US5495892 | 30 Dic 1993 | 5 Mar 1996 | | Inflatable packer device and method |
| US5540279 | 16 May 1995 | 30 Jul 1996 | Halliburton Company | Downhole tool apparatus with non-metallic packer element retaining shoes |
| US5564504 | 17 Jul 1995 | 15 Oct 1996 | | Programmed shape inflatable packer device and method |
| US5579839 | 15 May 1995 | 3 Dic 1996 | CDI Seals, Inc. | Bulge control compression packer |
| US5813459 | 11 Sep 1996 | 29 Sep 1998 | | Programmed shape inflatable packer device |
| US6220349 | 13 May 1999 | 24 Abr 2001 | Halliburton Energy Services, Inc. | Low pressure, high temperature composite bridge plug |
| US6431274 | 23 Jun 2000 | 13 Ago 2002 | Baker Hughes Incorporated | Well packer |
| US6712153 | 27 Jun 2001 | 30 Mar 2004 | Weatherford/Lamb, Inc. | Resin impregnated continuous fiber plug with non-metallic element system |
| US6789622 | 8 Jul 2002 | 14 Sep 2004 | EZ Tech Limited | Apparatus for and a method of anchoring an expandable conduit |
| US6860329 | 6 Sep 2000 | 1 Mar 2005 | e2 Tech Limited | Apparatus for and method of including a packer to facilitate anchoring a first conduit to a second conduit |
| US7036602 | 14 Jul 2003 | 2 May 2006 | Weatherford/Lamb, Inc. | Retrievable bridge plug |
| US7104322 | 20 May 2003 | 12 Sep 2006 | Weatherford/Lamb, Inc. | Open hole anchor and associated method |
| US7124823 | 22 Feb 2005 | 24 Oct 2006 | e2 Tech Limited | Apparatus for and method of anchoring a first conduit to a second conduit |
| US7124831 | 8 Abr 2005 | 24 Oct 2006 | Weatherford/Lamb, Inc. | Resin impregnated continuous fiber plug with non-metallic element system |
| US7128145 | 19 Ago 2002 | 31 Oct 2006 | Baker Hughes Incorporated | High expansion sealing device with leak path closures |
| US7152684 | 20 Dic 2002 | 26 Dic 2006 | Weatherford/Lamb, Inc. | Tubular hanger and method of lining a drilled bore |
| US7389823 | 31 Ene 2006 | 24 Jun 2008 | Weatherford/Lamb, Inc. | Retrievable bridge plug |
| US7395857 | 7 Jul 2004 | 8 Jul 2008 | Weatherford/Lamb, Inc. | Methods and apparatus for expanding tubing with an expansion tool and a cone |
| US7475735 | 22 Dic 2006 | 13 Ene 2009 | Weatherford/Lamb, Inc. | Tubular hanger and method of lining a drilled bore |
| US7721799 | 6 Oct 2007 | 25 May 2010 | Baski, Inc. | Flow control packer (FCP) and aquifer storage and recovery (ASR) system |
| US7779927 | 23 Dic 2009 | 24 Ago 2010 | Weatherford/Lamb, Inc. | Non-metallic mandrel and element system |
| US7779928 | 23 Dic 2009 | 24 Ago 2010 | Weatherford/Lamb, Inc. | Non-metallic mandrel and element system |
| US7789135 | 23 Dic 2009 | 7 Sep 2010 | Weatherford/Lamb, Inc. | Non-metallic mandrel and element system |
| US7789136 | 23 Dic 2009 | 7 Sep 2010 | Weatherford/Lamb, Inc. | Non-metallic mandrel and element system |
| US7789137 | 23 Dic 2009 | 7 Sep 2010 | Weatherford/Lamb, Inc. | Non-metallic mandrel and element system |
| US8002030 | 23 Jun 2008 | 23 Ago 2011 | Weatherford/Lamb, Inc. | Retrievable bridge plug |