| 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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| 03/12/1998 | WO1998010166A1 A drill rod changer assembly |
| 03/11/1998 | EP0828108A1 Process for connecting conduits |
| 03/11/1998 | CN1175990A Downhole tool |
| 03/09/1998 | CA2214551A1 A drilling hole system |
| 03/05/1998 | DE19635083A1 Drilling equipment with rock drilling machine supported in frame |
| 03/03/1998 | US5722492 Catenary riser support |
| 03/03/1998 | US5722488 Apparatus for downhole drilling communications and method for making and using the same |
| 02/26/1998 | WO1998007957A1 Method for casing a wellbore |
| 02/26/1998 | WO1998007954A1 Method and apparatus for connecting a first tubular to a second tubular |
| 02/26/1998 | WO1998007952A1 Rock drilling rig |
| 02/26/1998 | WO1998007648A1 Positioning device |
| 02/26/1998 | CA2263240A1 Method for casing a wellbore |
| 02/25/1998 | EP0825330A1 Drilling control apparatus of rock drill |
| 02/25/1998 | EP0825326A2 Method and apparatus for horizontal drilling and for handling drill rods |
| 02/25/1998 | EP0825325A1 Catenary riser supports |
| 02/25/1998 | EP0824634A1 A hydraulic arrangement for turning the actuator of a rock drilling machine |
| 02/24/1998 | US5720503 Sealing sytem--anti collapse device |
| 02/19/1998 | DE19729059A1 Sealing arrangement for boreholes in rock formations with pressure burden |
| 02/12/1998 | WO1998005844A1 Mechanism for connecting and disconnecting tubulars |
| 02/12/1998 | WO1997048268A3 Automatic self energizing stop collar |
| 02/11/1998 | CN2274252Y Extruding-type back-pliers |
| 02/11/1998 | CN2274251Y Block-shape polish-rod clamp |
| 02/10/1998 | CA2097089C Torque transfer apparatus |
| 02/04/1998 | CN2273764Y Composition type teeth of spider for petroleum borehole drilling |
| 02/03/1998 | US5713422 Apparatus and method for drilling boreholes |
| 01/28/1998 | EP0694115B1 Drilling arrangement and drilling feed mechanism |
| 01/27/1998 | US5711382 Automated oil rig servicing system |
| 01/22/1998 | DE19629211A1 Boring machine used in tunnel |
| 01/21/1998 | EP0819820A1 Horizontal drilling machine |
| 01/21/1998 | EP0819819A1 Milling head,drilling device and method for underwater drilling |
| 01/21/1998 | CN2272943Y Long anchor cable feeding machine |
| 01/21/1998 | CN2272942Y Multiprupose pumping rod elevator |
| 01/20/1998 | US5709285 For use on a derrick |
| 01/20/1998 | US5709277 Directional boring machine |
| 01/13/1998 | US5706897 Drilling, production, test, and oil storage caisson |
| 01/13/1998 | US5706894 Automatic self energizing stop collar |
| 01/13/1998 | US5706863 Pipe section having padeye attachments |
| 01/07/1998 | EP0816627A2 Underground drilling method |
| 01/07/1998 | EP0815352A1 An arrangement in a feed beam of a rock drill |
| 01/07/1998 | EP0815341A1 Dual bore riser |
| 01/06/1998 | US5704716 In a rock drilling machine |
| 01/06/1998 | US5704427 Portable well service rig |
| 01/02/1998 | DE19626223A1 Kelly string with latching assemblies |
| 12/31/1997 | WO1997049896A1 Method and arrangement for controlling rock drilling |
| 12/30/1997 | US5702139 For making up/breaking apart a threaded joint on a tubular member |
| 12/30/1997 | US5701962 Arrangement for controlling the feed mechanism of a rock drill |
| 12/29/1997 | EP0813647A2 Universal pipe injection apparatus for wells and method |
| 12/24/1997 | WO1997048268A2 Automatic self energizing stop collar |
| 12/24/1997 | CA2258950A1 Automatic self energizing stop collar |
| 12/17/1997 | EP0650548A4 Rod accumulator riser tensioning cylinder assembly. |
| 12/17/1997 | CN1168165A Drilling and pipe laying unit |
| 12/16/1997 | US5697457 No load derrick for drilling rig |
| 12/16/1997 | US5697447 Flexible risers with stabilizing frame |
| 12/16/1997 | US5697439 Assembly and method for hanging elongated tubing in well bore |
| 12/11/1997 | WO1997040255A3 Tubing injection systems for land and under water use |
| 12/10/1997 | EP0811111A1 Downhole tool |
| 12/10/1997 | EP0811108A2 Apparatus and method for handling drill pipes |
| 12/10/1997 | EP0649360A4 Ring gear camming member. |
| 12/09/1997 | US5695017 Earth boring apparatus |
| 12/09/1997 | US5695016 Auger telescoping hoist assembly and holding fork mechanism |
| 12/09/1997 | CA2058315C Tool saver |
| 12/08/1997 | CA2178544A1 Non-metallic oil well tubing system |
| 12/04/1997 | WO1997045621A1 Rod changing system |
| 12/03/1997 | CN2269459Y Tooth-free slick rod clamp for oil pumping well |
| 11/26/1997 | CN1165924A Guided drilling system with shock absorber |
| 11/25/1997 | US5690184 Rock drilling apparatus |
| 11/25/1997 | US5689871 Couplings for standard A.P.I. tubings and casings and methods of assembling the same |
| 11/20/1997 | WO1997043516A1 Slip joint |
| 11/19/1997 | EP0807203A1 Continuous control system for a mining or tunnelling machine |
| 11/18/1997 | US5687804 Equipment for handling drill rods |
| 11/18/1997 | US5687793 Apparatus for use in lowering a well pipe into alignment with a subsea conduit |
| 11/18/1997 | CA2116656C Automatic sequencing system for earth drilling machine |
| 11/18/1997 | CA2092409C Apparatus and method for making and breaking joints in drill pipe strings |
| 11/18/1997 | CA2003725C System for transferring fluids from a piping system in a ship's hull to a turning device, and vice versa |
| 11/13/1997 | WO1997042394A1 Method and apparatus for injection of tubing into wells |
| 11/13/1997 | WO1997042393A1 Multi-activity offshore exploration and/or development drilling method and apparatus |
| 11/05/1997 | EP0805257A2 Guided drilling system with shock absorber |
| 11/05/1997 | EP0804742A2 A method for determining the position of a tool of a rock drill |
| 11/04/1997 | US5682952 Extendable casing circulator and method |
| 10/30/1997 | WO1997040255A2 Tubing injection systems for land and under water use |
| 10/30/1997 | DE19712641A1 Übergabeeinrichtung für Rohrschüsse Transfer device for pipe sections |
| 10/29/1997 | EP0803638A2 Method of testing coiled tubing |
| 10/29/1997 | CN1036288C Binding method and adhesive for rope clamp of oil pumping unit |
| 10/25/1997 | CA2203484A1 Method of testing coiled tubing |
| 10/23/1997 | WO1997039219A1 Apparatus and method for downhole drilling communications |
| 10/23/1997 | CA2252400A1 Apparatus and method for downhole drilling communications |
| 10/22/1997 | EP0801703A1 Apparatus for deploying wireline |
| 10/22/1997 | EP0801702A1 Drilling and pipe laying unit |
| 10/21/1997 | US5678642 Drilling arrangement and drilling feed mechanism |
| 10/21/1997 | CA2148346C Apparatus for gripping a down hole tubular |
| 10/14/1997 | US5676327 Device for storing and for handling a rod made of composite |
| 10/07/1997 | CA2071874C Motorized swivel provided with a dynamometric measurement unit |
| 10/02/1997 | WO1997036087A1 Infuser for composite spoolable pipe |
| 10/02/1997 | CA2250027A1 Infuser for composite spoolable pipe |
| 09/30/1997 | US5671961 Back-up power tongs |
| 09/30/1997 | US5671811 Tube assembly for servicing a well head and having an inner coil tubing injected into an outer coiled tubing |
| 09/30/1997 | CA2037240C Guide arch for tubing |
| 09/25/1997 | WO1997035093A1 Method and apparatus using coiled-in-coiled tubing |
| 09/25/1997 | DE19606630C1 Soil sample extraction device |
| 09/24/1997 | EP0796978A2 Magazine for drilling rods |