| Patents for E21B 19 - Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables (17,198) |
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| 07/21/1999 | CN2329758Y Locking-type hand spider |
| 07/15/1999 | WO1999035367A1 Arrangements in snubbing rigs |
| 07/15/1999 | WO1999035366A1 A drill pipe and method of forming and reconditioning a drill pipe |
| 07/15/1999 | DE19752490A1 Rock drill magazine |
| 07/14/1999 | CN2328785Y Inner pipe drawer |
| 07/08/1999 | WO1999034089A1 Making and breaking of couplings between pipe sections in a drilling rig |
| 07/08/1999 | WO1999034088A1 Weight compensation device |
| 07/08/1999 | CA2316357A1 Making and breaking of couplings between pipe sections in a drilling rig |
| 07/07/1999 | EP0927294A1 Coupling piece for use at simultaneous earth and/or rock drilling with an upper rotary percussion device and a lower percussion device |
| 07/06/1999 | US5918671 Skate roller bearing for coiled tubing |
| 07/01/1999 | WO1999032352A1 Floating production installation |
| 06/30/1999 | EP0925253A1 Redundant drawworks |
| 06/24/1999 | WO1999031346A1 Device for moving an elongated object, in particular a riser part or a drill pipe cassette |
| 06/24/1999 | WO1999031345A1 Riser-tensioner |
| 06/22/1999 | CA2237309C Method and apparatus for controlling reactive torque on a drill string while drilling |
| 06/22/1999 | CA2167325C Manually operable rod holder |
| 06/17/1999 | WO1999030000A1 Handling of tube sections in a rig for subsoil drilling |
| 06/17/1999 | WO1999029999A1 Handling assembly for tubulars and related method |
| 06/17/1999 | WO1999029566A1 Floating installation |
| 06/16/1999 | EP0922154A1 Method and apparatus for connecting a first tubular to a second tubular |
| 06/16/1999 | EP0922008A1 Positioning device |
| 06/15/1999 | US5911796 Jaw assembly |
| 06/15/1999 | CA2096124C Tong |
| 06/09/1999 | EP0920567A1 Rock drilling rig |
| 06/09/1999 | EP0712499A4 Improved slick line system with real-time surface display |
| 06/08/1999 | US5909768 Apparatus and method for improved tubular grip assurance |
| 06/02/1999 | EP0919692A2 Magazine for drill strings and/or casings in a rock drilling machine |
| 06/02/1999 | EP0918917A1 Method for casing a wellbore |
| 06/02/1999 | EP0918916A1 Rod changing system |
| 06/02/1999 | EP0811111B1 Downhole tool |
| 05/27/1999 | WO1999025611A1 Submersible work vessel for installing a blow out preventer |
| 05/26/1999 | EP0917615A1 Mechanism for connecting and disconnecting tubulars |
| 05/26/1999 | CN2320784Y Drilling liner hanging device |
| 05/26/1999 | CN1217416A Drilling system |
| 05/25/1999 | CA2134273C Spoolable coiled tubing completion system |
| 05/18/1999 | US5904075 For an oil field tong |
| 05/14/1999 | WO1999023348A1 Method and apparatus for moving a diverter housing |
| 05/14/1999 | WO1999023347A1 Device for preventing pipe buckling |
| 05/14/1999 | WO1999022915A2 Apparatus for unscrewing drill pipe sections |
| 05/06/1999 | WO1999022111A1 An apparatus for retaining two strings of tubulars |
| 05/06/1999 | WO1999010227A3 Tension control device for tensile elements |
| 05/05/1999 | CN1215789A Well system |
| 04/28/1999 | EP0911483A2 Well system including composite pipes and a downhole propulsion system |
| 04/28/1999 | EP0705378B1 Equipment for handling drill rods |
| 04/28/1999 | CN2316452Y 油管补偿器 Tubing compensator |
| 04/27/1999 | US5896936 Arrangement for controlling boom for rock drilling unit |
| 04/27/1999 | US5896935 Arrangement in boom for rock drilling unit |
| 04/22/1999 | WO1999019593A2 Feed system for a rotary drill tower |
| 04/20/1999 | US5895176 Device for connecting a pipeline conduit to a ground-boring machine |
| 04/20/1999 | US5894895 Heave compensator for drill ships |
| 04/15/1999 | WO1999017983A1 Swivel device |
| 04/15/1999 | CA2306278A1 Swivel device |
| 04/14/1999 | CN2314094Y Slips |
| 04/14/1999 | CN2314088Y Powered open pincers |
| 04/13/1999 | US5893421 Arrangement for mounting swing cylinders in boom for rock drilling unit |
| 04/07/1999 | EP0907002A2 Catenary riser supports |
| 04/06/1999 | US5890534 Variable injector |
| 04/06/1999 | US5890403 Braking mechanism for power tongs |
| 04/01/1999 | DE19747468C1 Pipe clamp for manipulating double pipe strings |
| 03/31/1999 | EP0904480A2 Automatic self energizing stop collar |
| 03/31/1999 | CN2312319Y Hinged type teethless polished rod spider |
| 03/24/1999 | CN1211666A Air-tyre clutch gear-shift planet speed-change motive power tongs |
| 03/23/1999 | US5884712 Arrangement for a telescope feeder of a rock-drilling machine |
| 03/17/1999 | EP0902160A2 Auger drill machine with support rod |
| 03/17/1999 | CN1210933A Clamping mechanism with combined inner camber and climbing roller for hydraulic pincers |
| 03/16/1999 | US5881815 Drilling, production, test, and oil storage caisson |
| 03/11/1999 | WO1999011902A1 Method and apparatus for aligning tubulars |
| 03/11/1999 | WO1999011901A1 Drilling vessel provided with auxiliary tower or auxiliary mast |
| 03/11/1999 | WO1999011518A1 Apparatus for a mobile installation, especially an offshore vessel |
| 03/10/1999 | EP0900317A1 Apparatus and method for downhole drilling communications |
| 03/10/1999 | EP0649360B1 Ring gear camming member |
| 03/10/1999 | CN2310151Y Automatic open/close type safety door for power tongs |
| 03/10/1999 | CN2310150Y Screw lifting type pipe manifold for drilling |
| 03/09/1999 | US5878825 Underground propelling method |
| 03/09/1999 | US5878812 Misaligning wellhead system |
| 03/04/1999 | WO1999010661A1 T-bar wireline clamp |
| 03/04/1999 | WO1999010227A2 Tension control device for tensile elements |
| 03/04/1999 | WO1999010130A1 Duplex drill pipe wrench |
| 03/03/1999 | EP0898637A1 Slip joint |
| 03/03/1999 | EP0724682B1 Tool for maintaining wellbore penetration |
| 03/02/1999 | US5875850 Universal pipe and tubing injection apparatus and method |
| 03/02/1999 | US5875848 Weight management system and method for marine drilling riser |
| 02/24/1999 | CN2308707Y Drilling rod clamping-fixing device |
| 02/23/1999 | US5873416 In an offshore structure designed to drill for/produce hydrocarbons |
| 02/23/1999 | CA2176296C Rotating rod string position adjusting device |
| 02/11/1999 | WO1999006186A1 Apparatus for disconnecting drill rods |
| 02/09/1999 | US5868045 Apparatus for making and breaking joints in drill pipe strings |
| 02/09/1999 | CA2189376C Hybrid coiled tubing/conventional drilling unit |
| 02/03/1999 | EP0894939A2 Controlled pressure multi-cylinder riser tensioner and method |
| 02/03/1999 | EP0894182A2 Tubing injection systems for land and under water use |
| 02/03/1999 | EP0692063B1 Gripping arm for a rock drilling equipment or the like provided with a cartridge for rods |
| 02/03/1999 | CN1041955C Drilling arrangement |
| 02/02/1999 | US5865566 In a floating offshore structure for producing hydrocarbons |
| 02/02/1999 | US5865073 Torque machines |
| 01/28/1999 | WO1999003646A1 Improved braking mechanism for power tongs |
| 01/27/1999 | EP0892698A1 Dual string backup tong |
| 01/26/1999 | CA2064197C Device for conducting forces into movable objects |
| 01/19/1999 | US5860680 Sealing system--anti collapse device |
| 01/14/1999 | WO1999001638A1 Apparatus for and a method of supporting a tubular member |
| 01/07/1999 | WO1999000577A1 Safety switching system for clamping devices for pipes |