| 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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| 04/17/1979 | CA1052909A1 Device to gauge the position and the speed of a drill |
| 04/10/1979 | US4148445 Apparatus and method for dispensing and retrieving flexible pipe |
| 04/10/1979 | US4148366 Variable speed auger for use with a skid steer vehicle |
| 04/10/1979 | CA1052369A1 Holding wrench for drill strings |
| 04/03/1979 | US4147221 Riser set-aside system |
| 04/03/1979 | US4147215 Independently powered breakout apparatus and method for a sectional drill string |
| 04/03/1979 | CA1051862A1 Multi function drill drive system |
| 04/03/1979 | CA1051861A1 Break-out-unit |
| 03/20/1979 | US4145014 Method and device for automatically positioning a flexible elongate member in a storage basket rotatable about a vertical axis |
| 03/13/1979 | US4143721 Change in length of drill string containing an instrument |
| 03/13/1979 | US4143720 Method and apparatus for taking core samples |
| 03/13/1979 | CA1050527A1 Ring drilling rig |
| 03/13/1979 | CA1050526A1 Drill rod handling device |
| 03/06/1979 | US4142596 Drive link permitting feed and rotation of drills of various sizes |
| 03/06/1979 | CA1049927A1 Line diverting tool |
| 02/20/1979 | US4140227 Cable way apparatus for transporting pipe |
| 02/13/1979 | US4139891 Elevator load control arrangement for a computer-controlled oil drilling rig |
| 02/13/1979 | CA1048485A1 Portable drilling rig compound |
| 02/06/1979 | US4137974 Hydraulically driven kelly crowd |
| 02/06/1979 | US4137758 Torque indicator apparatus |
| 01/30/1979 | US4136633 Device for restraining lateral movement of subsea equipment |
| 01/23/1979 | US4135586 Apparatus for constantly rotating casing during installation |
| 01/09/1979 | US4133176 Apparatus and method for hydraulic makeup and control |
| 01/09/1979 | US4133095 Treating, including induction heating of well pipe connections |
| 12/26/1978 | CA1045112A1 Power slip unit |
| 12/26/1978 | CA1044904A1 Open bottom float tension riser |
| 12/26/1978 | CA1044903A1 Pipe handling head |
| 12/19/1978 | US4130168 Downcrowding boom assembly |
| 12/19/1978 | CA1044690A1 Rotary drilling rig |
| 12/19/1978 | CA1044598A1 Casing stabbing apparatus |
| 12/12/1978 | US4129221 Pipe handling apparatus |
| 12/12/1978 | CA1044219A1 Pipe rack with pivoted fingers |
| 12/12/1978 | CA1044218A1 Pipe handling apparatus for oil well drilling derrick |
| 12/05/1978 | US4128888 Velocity control arrangement for a computer-controlled oil drilling rig |
| 12/05/1978 | US4128229 Hoist apparatus with dual mast structure and compound power transmission system |
| 12/05/1978 | US4128135 Drill pipe handling mechanism |
| 12/05/1978 | US4128133 Torquer/thruster for flexible roofdrill |
| 11/28/1978 | CA1043326A1 Hose training means |
| 11/21/1978 | US4126348 Universal handling head for a pipe racker |
| 11/21/1978 | CA1042670A1 Method of manufacturing elevator links and a cast elevator link blank for use in the method |
| 11/14/1978 | US4125164 Apparatus and method for lifting a bop from a wellhead |
| 11/14/1978 | US4125162 Well flow system and method |
| 11/14/1978 | US4125040 Power tong apparatus |
| 11/07/1978 | US4124229 Rigid connector for pipe and method of making the same |
| 11/07/1978 | CA1042103A1 Method and apparatus for measuring the rate of penetration in well drilling from floating platforms |
| 11/07/1978 | CA1041990A1 Pipe rack with pivoted fingers and screw conveyors |
| 10/24/1978 | US4121806 Apparatus for compensating variations of distance |
| 10/17/1978 | CA1040615A1 Derrick mounted apparatus for the manipulation of pipe |
| 10/10/1978 | US4119297 Snubbing apparatus |
| 10/10/1978 | US4118954 Motion compensator |
| 10/03/1978 | US4117941 Device for handling and racking riser pipes and drill pipes |
| 10/03/1978 | US4117894 Drill steel guide for a mine drilling machine |
| 09/26/1978 | US4116287 Well drilling assembly and method |
| 09/19/1978 | US4114698 Method and apparatus for tunneling upwardly |
| 09/19/1978 | CA1038853A1 Head for pipe rackers |
| 09/05/1978 | US4111388 Vertical pipe holding tool |
| 08/29/1978 | US4110688 Method and apparatus for pipe joint locator, counter and displacement calculator |
| 08/29/1978 | US4109800 Multi-stage well-drilling mast assembly |
| 08/29/1978 | US4109733 Tilt preventing system for drills |
| 08/29/1978 | CA1037463A1 Power tongs |
| 08/22/1978 | US4108318 Apparatus for offshore handling and running of a BOP stack |
| 08/22/1978 | US4108317 Continuous laying of pipes of large diameter |
| 08/22/1978 | US4108258 Rock drilling apparatus with noise reducing drill rod cover |
| 08/22/1978 | US4108253 Elevatable operator's compartment having a drill steel guide for a mine drilling machine |
| 08/15/1978 | CA1036588A1 Guide head for pipe rackers |
| 08/08/1978 | US4105189 Line diverting tool |
| 08/08/1978 | US4105081 Rock-drilling and bolt-setting apparatus |
| 08/08/1978 | US4105079 Device for launching percussion ground borers |
| 08/01/1978 | US4103745 Portable drilling machine |
| 07/25/1978 | US4102414 Drilling apparatus |
| 07/25/1978 | US4102409 Rock drilling machine |
| 07/18/1978 | US4100968 Technique for running casing |
| 07/11/1978 | US4099630 Pipe handling apparatus |
| 07/11/1978 | US4099579 Drill mounting device for backhoe attachments |
| 07/11/1978 | US4099560 Open bottom float tension riser |
| 07/11/1978 | US4099429 Pipe-spinning apparatus and method |
| 07/04/1978 | US4098532 Quick engage and release sling for tubular members |
| 07/04/1978 | US4098491 Methods and apparatus for the control of a suspended weight from a floating vessel |
| 07/04/1978 | US4098333 Offshore wells |
| 07/04/1978 | US4098082 Wave-motion compensating apparatus for use in conjunction with an off-shore crane, or the like |
| 06/27/1978 | US4096608 Drill string holder |
| 06/20/1978 | US4095493 Tong locking mechanism |
| 06/06/1978 | US4093281 Method and apparatus for axially loading threaded connectors |
| 06/06/1978 | US4092881 Apparatus for making-up and breaking threaded pipe connections |
| 06/06/1978 | US4092872 Safety attachment for the horsehead of an oil well pumping unit |
| 05/30/1978 | US4091867 Flexible conduit injection system |
| 05/23/1978 | US4091451 Method of and apparatus for making up a threaded connection |
| 05/23/1978 | US4090368 Offshore platforms |
| 05/23/1978 | CA1031800A1 Brake shoe for drive element of an elongated member |
| 05/16/1978 | US4089240 Power tongs |
| 05/16/1978 | US4089100 Method and apparatus for installing a cutterhead upon a box hole boring machine |
| 04/25/1978 | US4085808 Self-driving and self-locking device for traversing channels and elongated structures |
| 04/25/1978 | US4085796 Well tubing handling system |
| 04/25/1978 | US4085509 Apparatus for compensating for the heaving of a floating drilling platform for connection with apparatus for measuring the rate of penetration of pipe run into an offshore well |
| 04/25/1978 | US4085474 Apparatus for interiorly cleaning lengths of pipe |
| 04/18/1978 | US4084453 Power tongs |
| 04/18/1978 | US4084429 Power tong apparatus |
| 04/04/1978 | US4082193 Pipe handling apparatus |
| 04/04/1978 | US4082017 Power operated drill pipe tongs |
| 03/28/1978 | US4081163 Blow out preventer handling system |