|
| US4348672 | 4. März 1981 | 7. Sept. 1982 | Tele-Drill, Inc. | Insulated drill collar gap sub assembly for a toroidal coupled telemetry system |
| US4387372 | 19. März 1981 | 7. Juni 1983 | Tele-Drill, Inc. | Point gap assembly for a toroidal coupled telemetry system |
| US4518888 | 27. Dez. 1982 | 21. Mai 1985 | NL Industries, Inc. | Downhole apparatus for absorbing vibratory energy to generate electrical power |
| US4605268 | 8. Nov. 1982 | 12. Aug. 1986 | NL Industries, Inc. | Transformer cable connector |
| US4788544 | 8. Jan. 1987 | 29. Nov. 1988 | Hughes Tool Company - USA | Well bore data transmission system |
| US4790380 | 17. Sept. 1987 | 13. Dez. 1988 | Baker Hughes Incorporated | Wireline well test apparatus and method |
| US4839644 | 10. Juni 1987 | 13. Juni 1989 | Schlumberger Technology Corp. | System and method for communicating signals in a cased borehole having tubing |
| US4845493 | 4. Nov. 1987 | 4. Juli 1989 | Hughes Tool Company | Well bore data transmission system with battery preserving switch |
| US4884071 | 28. Nov. 1988 | 28. Nov. 1989 | Hughes Tool Company | Wellbore tool with hall effect coupling |
| US5052941 | 20. Dez. 1990 | 1. Okt. 1991 | Schlumberger Technology Corporation | Inductive-coupling connector for a well head equipment |
| US5160925 | 17. Apr. 1991 | 3. Nov. 1992 | Smith International, Inc.
Develco, Inc. | Short hop communication link for downhole MWD system |
| US5236048 | 10. Dez. 1991 | 17. Aug. 1993 | Halliburton Company | Apparatus and method for communicating electrical signals in a well, including electrical coupling for electric circuits therein |
| US6670880 | 23. März 2001 | 30. Dez. 2003 | Novatek Engineering, Inc. | Downhole data transmission system |
| US6717501 | 18. Juli 2001 | 6. Apr. 2004 | Novatek Engineering, Inc. | Downhole data transmission system |
| US6799632 | 5. Aug. 2002 | 5. Okt. 2004 | Intelliserv, Inc. | Expandable metal liner for downhole components |
| US6830467 | 30. Apr. 2003 | 14. Dez. 2004 | IntelliServ, Inc. | Electrical transmission line diametrical retainer |
| US6866306 | 14. Juni 2001 | 15. März 2005 | Schlumberger Technology Corporation | Low-loss inductive couplers for use in wired pipe strings |
| US6888473 | 20. Juli 2000 | 3. Mai 2005 | IntelliServ, Inc. | Repeatable reference for positioning sensors and transducers in drill pipe |
| US6913093 | 6. Mai 2003 | 5. Juli 2005 | IntelliServ, Inc. | Loaded transducer for downhole drilling components |
| US6929493 | 2. Okt. 2003 | 16. Aug. 2005 | IntelliServ, Inc. | Electrical contact for downhole drilling networks |
| US6938697 | 16. März 2004 | 6. Sept. 2005 | Weatherford/Lamb, Inc. | Apparatus and methods for tubular makeup interlock |
| US6945802 | 28. Nov. 2003 | 20. Sept. 2005 | IntelliServ, Inc. | Seal for coaxial cable in downhole tools |
| US6950034 | 29. Aug. 2003 | 27. Sept. 2005 | Schlumberger Technology Corporation | Method and apparatus for performing diagnostics on a downhole communication system |
| US6968611 | 5. Nov. 2003 | 29. Nov. 2005 | IntelliServ, Inc. | Internal coaxial cable electrical connector for use in downhole tools |
| US6981546 | 9. Juni 2003 | 3. Jan. 2006 | IntelliServ, Inc. | Electrical transmission line diametrical retention mechanism |
| US6982384 | 25. Sept. 2003 | 3. Jan. 2006 | IntelliServ, Inc. | Load-resistant coaxial transmission line |
| US6991035 | 2. Sept. 2003 | 31. Jan. 2006 | IntelliServ, Inc. | Drilling jar for use in a downhole network |
| US6992554 | 29. Nov. 2003 | 31. Jan. 2006 | IntelliServ, Inc. | Data transmission element for downhole drilling components |
| US6994176 | 5. März 2004 | 7. Febr. 2006 | Weatherford/Lamb, Inc. | Adjustable rotating guides for spider or elevator |
| US7004264 | 14. März 2003 | 28. Febr. 2006 | Weatherford/Lamb, Inc. | Bore lining and drilling |
| US7013997 | 15. Dez. 2003 | 21. März 2006 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7017667 | 31. Okt. 2003 | 28. März 2006 | IntelliServ, Inc. | Drill string transmission line |
| US7036610 | 6. Juli 2002 | 2. Mai 2006 | Weatherford / Lamb, Inc. | Apparatus and method for completing oil and gas wells |
| US7040003 | 27. März 2004 | 9. Mai 2006 | IntelliServ, Inc. | Inductive coupler for downhole components and method for making same |
| US7040420 | 19. Nov. 2003 | 9. Mai 2006 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7053788 | 3. Juni 2003 | 30. Mai 2006 | IntelliServ, Inc. | Transducer for downhole drilling components |
| US7064676 | 19. Aug. 2003 | 20. Juni 2006 | IntelliServ, Inc. | Downhole data transmission system |
| US7069999 | 10. Febr. 2004 | 4. Juli 2006 | IntelliServ, Inc. | Apparatus and method for routing a transmission line through a downhole tool |
| US7073598 | 23. Juli 2003 | 11. Juli 2006 | Weatherford/Lamb, Inc. | Apparatus and methods for tubular makeup interlock |
| US7080699 | 29. Jan. 2004 | 25. Juli 2006 | Schlumberger Technology Corporation | Wellbore communication system |
| US7083005 | 31. Mai 2005 | 1. Aug. 2006 | Weatherford/Lamb, Inc. | Apparatus and method of drilling with casing |
| US7090021 | 16. März 2004 | 15. Aug. 2006 | | Apparatus for connecting tublars using a top drive |
| US7090023 | 9. Mai 2005 | 15. Aug. 2006 | Weatherford/Lamb, Inc. | Apparatus and methods for drilling with casing |
| US7093675 | 1. Aug. 2001 | 22. Aug. 2006 | Weatherford/Lamb, Inc. | Drilling method |
| US7096961 | 29. Apr. 2003 | 29. Aug. 2006 | Schlumberger Technology Corporation | Method and apparatus for performing diagnostics in a wellbore operation |
| US7096982 | 27. Febr. 2004 | 29. Aug. 2006 | Weatherford/Lamb, Inc. | Drill shoe |
| US7098767 | 25. März 2004 | 29. Aug. 2006 | IntelliServ, Inc. | Element for use in an inductive coupler for downhole drilling components |
| US7098802 | 10. Dez. 2002 | 29. Aug. 2006 | IntelliServ, Inc. | Signal connection for a downhole tool string |
| US7100710 | 18. Dez. 2003 | 5. Sept. 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. Apr. 2001 | 5. Sept. 2006 | Weatherford/Lamb, Inc. | Expandable apparatus for drift and reaming borehole |
| US7105098 | 6. Juni 2002 | 12. Sept. 2006 | Sandia Corporation | Method to control artifacts of microstructural fabrication |
| US7108084 | 24. Dez. 2003 | 19. Sept. 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. Mai 2004 | 10. Okt. 2006 | Weatherford/Lamb, Inc. | Methods for drilling and lining a wellbore |
| US7128154 | 29. Jan. 2004 | 31. Okt. 2006 | Weatherford/Lamb, Inc. | Single-direction cementing plug |
| US7128161 | 20. Sept. 2005 | 31. Okt. 2006 | Weatherford/Lamb, Inc. | Apparatus and methods for facilitating the connection of tubulars using a top drive |
| US7131505 | 22. Febr. 2005 | 7. Nov. 2006 | Weatherford/Lamb, Inc. | Drilling with concentric strings of casing |
| US7137454 | 13. Mai 2005 | 21. Nov. 2006 | Weatherford/Lamb, Inc. | Apparatus for facilitating the connection of tubulars using a top drive |
| US7140445 | 5. März 2004 | 28. Nov. 2006 | Weatherford/Lamb, Inc. | Method and apparatus for drilling with casing |
| US7147068 | 5. Dez. 2003 | 12. Dez. 2006 | Weatherford / Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7163065 | 8. Dez. 2003 | 16. Jan. 2007 | Shell Oil Company | Combined telemetry system and method |
| US7165634 | 2. Okt. 2003 | 23. Jan. 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. Juli 2004 | 13. März 2007 | Weatherford/Lamb, Inc. | Downhole filter |
| US7190280 | 17. Juni 2003 | 13. März 2007 | IntelliServ, Inc. | Method and apparatus for transmitting and receiving data to and from a downhole tool |
| US7191840 | 5. März 2004 | 20. März 2007 | Weatherford/Lamb, Inc. | Casing running and drilling system |
| US7213656 | 26. Apr. 2004 | 8. Mai 2007 | Weatherford/Lamb, Inc. | Apparatus and method for facilitating the connection of tubulars using a top drive |
| US7216727 | 21. Dez. 2000 | 15. Mai 2007 | Weatherford/Lamb, Inc. | Drilling bit for drilling while running casing |
| US7219744 | 29. Nov. 2005 | 22. Mai 2007 | Weatherford/Lamb, Inc. | Method and apparatus for connecting tubulars using a top drive |
| US7224288 | 2. Juli 2003 | 29. Mai 2007 | IntelliServ, Inc. | Link module for a downhole drilling network |
| US7228901 | 1. Dez. 2005 | 12. Juni 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. Febr. 2006 | 26. Juni 2007 | Weatherford/Lamb, Inc. | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells |
| US7243717 | 20. Sept. 2004 | 17. Juli 2007 | IntelliServ, Inc. | Apparatus in a drill string |
| US7261154 | 13. Aug. 2004 | 28. Aug. 2007 | IntelliServ, Inc. | Conformable apparatus in a drill string |
| US7264067 | 1. Okt. 2004 | 4. Sept. 2007 | Weatherford/Lamb, Inc. | Method of drilling and completing multiple wellbores inside a single caisson |
| US7284617 | 20. Mai 2004 | 23. Okt. 2007 | Weatherford/Lamb, Inc. | Casing running head |
| US7291303 | 31. Dez. 2003 | 6. Nov. 2007 | IntelliServ, Inc. | Method for bonding a transmission line to a downhole tool |
| US7303007 | 7. Okt. 2005 | 4. Dez. 2007 | Weatherford Canada Partnership | Method and apparatus for transmitting sensor response data and power through a mud motor |
| US7303022 | 27. Apr. 2004 | 4. Dez. 2007 | Weatherford/Lamb, Inc. | Wired casing |
| US7311148 | 9. Febr. 2004 | 25. Dez. 2007 | Weatherford/Lamb, Inc. | Methods and apparatus for wellbore construction and completion |
| US7325610 | 5. März 2004 | 5. Febr. 2008 | Weatherford/Lamb, Inc. | Methods and apparatus for handling and drilling with tubulars or casing |
| US7334650 | 2. Febr. 2004 | 26. Febr. 2008 | Weatherford/Lamb, Inc. | Apparatus and methods for drilling a wellbore using casing |
| US7336199 | 28. Apr. 2006 | 26. Febr. 2008 | Halliburton Energy Services, Inc | Inductive coupling system |
| US7360594 | 5. März 2004 | 22. Apr. 2008 | Weatherford/Lamb, Inc. | Drilling with casing latch |
| US7362235 | 15. Mai 2003 | 22. Apr. 2008 | Sandria Corporation | Impedance-matched drilling telemetry system |
| US7370707 | 5. Apr. 2004 | 13. Mai 2008 | Weatherford/Lamb, Inc. | Method and apparatus for handling wellbore tubulars |
| US7407006 | 22. Apr. 2005 | 5. Aug. 2008 | Weatherford/Lamb, Inc. | System for logging formations surrounding a wellbore |
| US7413020 | 5. März 2004 | 19. Aug. 2008 | Weatherford/Lamb, Inc. | Full bore lined wellbores |
| US7503397 | 29. Juli 2005 | 17. März 2009 | Weatherford/Lamb, Inc. | Apparatus and methods of setting and retrieving casing with drilling latch and bottom hole assembly |
| US7509722 | 5. März 2003 | 31. März 2009 | Weatherford/Lamb, Inc. | Positioning and spinning device |
| US7513305 | 30. Dez. 2004 | 7. Apr. 2009 | Weatherford/Lamb, Inc. | Apparatus and methods for operating a tool in a wellbore |
| US7565936 | 29. Nov. 2006 | 28. Juli 2009 | Shell Oil Company | Combined telemetry system and method |
| US7617866 | 8. Sept. 2005 | 17. Nov. 2009 | Weatherford/Lamb, Inc. | Methods and apparatus for connecting tubulars using a top drive |
| US7650944 | 11. Juli 2003 | 26. Jan. 2010 | Weatherford/Lamb, Inc. | Vessel for well intervention |
| US7712523 | 14. März 2003 | 11. Mai 2010 | Weatherford/Lamb, Inc. | Top drive casing system |
| US7730965 | 30. Jan. 2006 | 8. Juni 2010 | Weatherford/Lamb, Inc.
Shell Oil Company | Retractable joint and cementing shoe for use in completing a wellbore |
| US7762354 | 9. Aug. 2007 | 27. Juli 2010 | Schlumberger Technology Corporation | Peizoelectric generator particularly for use with wellbore drilling equipment |
| US7852232 | 4. Febr. 2003 | 14. Dez. 2010 | IntelliServ, Inc. | Downhole tool adapted for telemetry |
| US7857052 | 11. Mai 2007 | 28. Dez. 2010 | Weatherford/Lamb, Inc. | Stage cementing methods used in casing while drilling |
| US7880640 | 24. Mai 2006 | 1. Febr. 2011 | Schlumberger Technology Corporation | Wellbore communication system |
| US7938201 | 28. Febr. 2006 | 10. Mai 2011 | Weatherford/Lamb, Inc. | Deep water drilling with casing |
| US8011425 | 14. Okt. 2010 | 6. Sept. 2011 | Weatherford Canada Partnership | Transmitting sensor response data and power through a mud motor |
| US8049506 | 26. Febr. 2009 | 1. Nov. 2011 | Aquatic Company | Wired pipe with wireless joint transceiver |
| US8130118 | 29. Apr. 2009 | 6. März 2012 | Schlumberger Technology Corporation | Wired tool string component |
| US8191628 | 27. Juli 2011 | 5. Juni 2012 | Weatherford Canada Partnership | Method and apparatus for transmitting sensor response data and power through a mud motor |
| USRE42877 | 9. Juli 2010 | 1. Nov. 2011 | Weatherford/Lamb, Inc. | Methods and apparatus for wellbore construction and completion |
