US3922825A
(en)
*
|
1973-04-20 |
1975-12-02 |
Dresser Ind |
System for erecting an oil well derrick
|
US3942593A
(en)
*
|
1973-10-17 |
1976-03-09 |
Cabot Corporation |
Drill rig apparatus
|
US4009544A
(en)
*
|
1975-07-07 |
1977-03-01 |
Parker Drilling Company, Inc. |
Drilling rig with improved mast support structure
|
US4135340A
(en)
*
|
1977-03-08 |
1979-01-23 |
Chloride Group Limited |
Modular drill rig erection systems
|
US4221088A
(en)
*
|
1979-01-02 |
1980-09-09 |
Pre Corporation Mfg. Co. |
Low lift, elevatable high floor drilling mast and substructure arrangement therefor
|
FR2453968A1
(fr)
*
|
1979-04-11 |
1980-11-07 |
Union Ind Entreprise |
Installation de forage, notamment pour exploitation petroliere
|
US4366650A
(en)
*
|
1980-08-04 |
1983-01-04 |
Pre Corporation |
Support arrangement including base support means and elevatable support means to transport a drawworks and drilling mast supported thereon and for positioning at a drilling location
|
US4471587A
(en)
*
|
1982-02-22 |
1984-09-18 |
Continental Emsco |
Dual swing-up elevator well drilling apparatus
|
US4478015A
(en)
*
|
1982-09-07 |
1984-10-23 |
Lawrence Larry K |
Cable sling arrangement for pivoting a drilling mast and drawworks elevator to a raised or reclined position in relation to a substructure support and method of cable sling string up
|
US4569168A
(en)
*
|
1982-09-20 |
1986-02-11 |
P J Repair Service, Inc. |
Self-elevating substructure for a portable oil derrick
|
US4489526A
(en)
*
|
1983-03-08 |
1984-12-25 |
Skytop Brewster Company |
Drill rig elevating floor structure
|
US4587778A
(en)
*
|
1984-10-05 |
1986-05-13 |
Lee C. Moore Corporation |
Method and apparatus for erecting a drilling rig mast
|
US4831795A
(en)
*
|
1985-07-10 |
1989-05-23 |
Sorokan Ronald S |
Drilling derrick assembly
|
US7765749B2
(en)
*
|
2003-04-25 |
2010-08-03 |
National Oilwell, L.P. |
Fast moving drilling rig
|
US7306055B2
(en)
*
|
2004-03-02 |
2007-12-11 |
Barnes R Michael |
Automatic method for installing mobile drilling rig at a drilling site
|
US7308953B2
(en)
*
|
2004-03-02 |
2007-12-18 |
Barnes R Michael |
Mobile drilling rig
|
US20090000218A1
(en)
*
|
2007-06-28 |
2009-01-01 |
Douglas Wayne Lee |
Land rig
|
US20090200856A1
(en)
*
|
2008-02-13 |
2009-08-13 |
Chehade Elie J |
Methods and systems for raising and lowering a rig mast and substructure by remote control
|
US8047303B2
(en)
*
|
2008-02-29 |
2011-11-01 |
National Oilwell Varco L.P. |
Drilling rig drawworks installation
|
US8250816B2
(en)
*
|
2008-02-29 |
2012-08-28 |
National Oilwell Varco L.P. |
Drilling rig structure installation and methods
|
US8549815B2
(en)
*
|
2008-02-29 |
2013-10-08 |
National Oilwell Varco L.P. |
Drilling rig masts and methods of assembly and erecting masts
|
US8468753B2
(en)
*
|
2008-02-29 |
2013-06-25 |
National Oilwell Varco L.P. |
Drilling rigs and erection methods
|
US8813436B2
(en)
|
2008-02-29 |
2014-08-26 |
National Oilwell Varco, L.P. |
Pinned structural connection using a pin and plug arrangement
|
US8516751B2
(en)
*
|
2008-05-15 |
2013-08-27 |
National Oilwell Varco L.P. |
Mobile drilling rig
|
WO2011017584A2
(en)
|
2009-08-07 |
2011-02-10 |
National Oilwell Varco, L.P. |
Drilling rig with hinged, retractable outriggers
|
US20110072737A1
(en)
*
|
2009-09-28 |
2011-03-31 |
International Drilling Equipment Company, Llc |
Portable drilling rig apparatus and assembly method
|
US9091125B2
(en)
|
2012-01-16 |
2015-07-28 |
National Oilwell Varco, L.P. |
Collapsible substructure for a mobile drilling rig
|
DE102012209988A1
(de)
*
|
2012-03-20 |
2013-10-10 |
Bentec Gmbh Drilling & Oilfield Systems |
Unterbaumodul für eine mobile Landbohranlage und Verfahren zum Auf- und Abbau solcher Unterbaumodule
|
US9091126B2
(en)
|
2012-04-17 |
2015-07-28 |
National Oilwell Varco, L.P. |
Mobile drilling rig with telescoping substructure boxes
|
US9464488B2
(en)
|
2013-09-30 |
2016-10-11 |
National Oilwell Varco, L.P. |
Performing simultaneous operations on multiple wellbore locations using a single mobile drilling rig
|
EA036726B1
(ru)
|
2014-07-14 |
2020-12-11 |
Дреко Энерджи Сервисез Юлс |
Передвижная буровая установка
|
US9512676B2
(en)
*
|
2015-03-05 |
2016-12-06 |
Patterson-Uti Drilling Company Llc |
Mast leg pulley
|
US9650840B2
(en)
|
2015-04-27 |
2017-05-16 |
National Oilwell Varco, L.P. |
Method and apparatus for erecting a drilling rig
|
US9988807B2
(en)
|
2016-02-24 |
2018-06-05 |
National Oilwell Varco, L.P. |
Drilling rig with self-elevating drill floor
|
US10822924B2
(en)
|
2016-03-07 |
2020-11-03 |
National Oilwell Varco, L.P. |
Multi-well bop cellar trailer
|
US9970211B2
(en)
|
2016-05-02 |
2018-05-15 |
Dreco Energy Services Ulc |
Guide rails for mobile drilling rig
|
US10293854B2
(en)
|
2016-10-05 |
2019-05-21 |
Dreco Energy Services Ulc |
Movable rig and steering system
|
WO2020028969A1
(en)
|
2018-08-06 |
2020-02-13 |
Dreco Energy Services Ulc |
Drill floor support structures
|
US11603723B2
(en)
|
2019-08-30 |
2023-03-14 |
Nov Canada Ulc |
Cuttings processing unit
|