| 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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| 06/16/1987 | CA1223001A1 Rotary power slips |
| 06/10/1987 | EP0138820B1 Plant for making bore-holes in the side walls of underground exploitation chambers of small width |
| 06/10/1987 | CN86107480A Apparatus for storing concrete feeding hose in a rock bolting device |
| 06/09/1987 | US4671365 Drill feeding and hoisting system for an earthdrill |
| 06/04/1987 | DE3601896C1 Pipe-coupling clamp |
| 06/03/1987 | EP0224223A2 Clamping apparatus for bodies to be rotated |
| 05/27/1987 | EP0223575A2 Drilling apparatus |
| 05/26/1987 | US4668126 Floating drilling rig apparatus and method |
| 05/26/1987 | US4668125 Self-contained, transportable apparatus for inserting a liner into a pipe |
| 05/26/1987 | US4667752 Top head drive well drilling apparatus with stabbing guide |
| 05/26/1987 | US4667750 Vibratory earth penetrator with synchronized air lance control |
| 05/26/1987 | US4667389 Apparatus and method for connecting two threaded members |
| 05/26/1987 | CA1222206A1 Wrenching unit for use in power threading of a sleeve portion to a pipe portion used in make-up of oil well casings or the like |
| 05/26/1987 | CA1222204A1 Insertion drive system for tree savers |
| 05/21/1987 | WO1987002915A1 A method and a drilling rig for drilling a bore well |
| 05/19/1987 | US4666187 Device for connecting and disconnecting hoses or pipes to and from difficultly accessible structures |
| 05/07/1987 | WO1987002609A1 Powered pipe wrench |
| 05/05/1987 | US4662786 Dynamic load compensating system |
| 05/05/1987 | US4662784 Method of installing pipe strings through offshore drilling platforms already in place |
| 05/05/1987 | US4662608 Automatic drilling control system |
| 04/30/1987 | DE3634502A1 Roof-bolting drilling apparatus |
| 04/28/1987 | US4660634 Automatic drill pipe breakout |
| 04/21/1987 | US4659115 Reducer coupling and positioner tool for the coupling |
| 04/21/1987 | US4658915 Easy break-out tool joint and method |
| 04/21/1987 | US4658903 Method for handling wellhead assembly |
| 04/15/1987 | EP0218405A2 Dynamic load compensating apparatus |
| 04/14/1987 | US4657439 Buoyant member riser tensioner method and apparatus |
| 04/14/1987 | CA1220418A1 Apparatus and method for rotating coil tubing in a well |
| 04/07/1987 | US4655433 Riser tensioning system |
| 04/07/1987 | US4655291 Injector for coupled pipe |
| 04/07/1987 | US4654950 Stabbing protector with flex fitting inserts and method of attaching same in working position |
| 04/01/1987 | EP0215998A2 A pile driver, pile drawer and/or drilling machine |
| 03/31/1987 | US4653810 Pre-bolting system for underground mines |
| 03/25/1987 | EP0215522A2 Reducer coupling and positioner tool for the coupling |
| 03/24/1987 | US4652195 Casing stabbing and positioning apparatus |
| 03/17/1987 | US4650236 Automatic pipe elevator |
| 03/17/1987 | US4650235 Well tubing handling apparatus |
| 03/17/1987 | US4649778 Pipe spinner assembly |
| 03/17/1987 | US4649777 Back-up power tongs |
| 03/17/1987 | CA1219253A1 In-the-hole drill |
| 03/10/1987 | US4648292 Tong assembly |
| 03/03/1987 | US4647099 Lifting head |
| 03/03/1987 | US4646841 For reducing/eliminating transmittal of wave and wind induced motions |
| 03/03/1987 | CA1218644A1 Elevator/spider with counterbalance |
| 03/03/1987 | CA1218642A1 Slip lock for elevator/spider |
| 02/26/1987 | WO1987001106A1 Riser tensioning system |
| 02/24/1987 | US4645084 Robot arm |
| 02/17/1987 | US4643624 Guide means for stabilizing pipe strings |
| 02/17/1987 | US4643456 Locking thread saver |
| 02/17/1987 | US4643399 Apparatus for counterbalancing tongs |
| 02/17/1987 | US4643262 Pressurized medium actuated gripping device |
| 02/17/1987 | US4643259 Hydraulic drill string breakdown and bleed off unit |
| 02/10/1987 | CA1217758A System to control the vertical movement of a drillstring |
| 02/04/1987 | CN86105254A Sideway driving motion dirller |
| 02/04/1987 | CN86104630A Bearing structure and a floating vessel comprising such structure |
| 02/03/1987 | US4640353 Electrode well and method of completion |
| 02/03/1987 | CA1217473A1 Method of and arrangement for positioning of a drilling apparatus |
| 01/27/1987 | US4639868 Control method for drilling apparatus which makes use of a final drilling pattern transformed from primary and secondary patterns |
| 01/20/1987 | US4637475 In-the-hole drill |
| 01/20/1987 | CA1216871A1 Coupling for tubing or casing and method of assembly |
| 01/17/1987 | CN85101084A Method and equipment for lifting and putting down a rigid drilling rod |
| 01/08/1987 | DE3537471C1 Insertion and centring device for pipes to be screwed to one another |
| 01/07/1987 | EP0207915A1 A bearing structure and a floating vessel comprising such structure |
| 01/07/1987 | EP0157864B1 Heave compensation for a pipeline hoisting system |
| 01/06/1987 | US4633801 Stress reduction connection apparatus for cylindrical tethers |
| 01/06/1987 | CA1216276A1 Apparatus and method for extracting horizontal underground pipe |
| 01/02/1987 | DE3523221A1 Method of screwing pipes |
| 12/30/1986 | US4632618 Feed storage for drill rods for a long-hole drilling apparatus |
| 12/30/1986 | US4632183 Insertion drive system for tree savers |
| 12/30/1986 | US4631987 Power tongs |
| 12/23/1986 | US4630688 Power spinner for rotating a kelly joint |
| 12/23/1986 | CA1215551A1 Assembly of conductor guides for offshore drilling platform |
| 12/16/1986 | US4629014 For drilling and maintenance of oil and/or gas wells |
| 12/09/1986 | US4627519 Hydraulic disk brake having a braking torque-to-hydraulic force converter |
| 12/02/1986 | US4626134 Apparatus and method for extracting horizontal underground pipe |
| 12/02/1986 | US4625815 Drilling equipment, especially for use in underground mining |
| 12/02/1986 | US4625796 Well pipe stabbing and back-up apparatus |
| 12/02/1986 | US4625673 Motion compensation means for a floating production system |
| 12/02/1986 | CA1214769A1 Pipe handling assembly |
| 11/25/1986 | US4624483 Quick connect coupler |
| 11/20/1986 | EP0202184A1 Well pipe stabbing and back-up apparatus |
| 11/12/1986 | EP0201283A1 Dual tool spider for pipes |
| 11/11/1986 | US4621974 Automated pipe equipment system |
| 11/04/1986 | US4620692 Crown block compensator |
| 11/04/1986 | CA1213653A1 Apparatus for making threaded joints incorporating a make-up speed controller and apparatus for counting turns when making threaded joints including an increased resolution turns counter |
| 10/29/1986 | EP0199664A2 Well pipe handling machine |
| 10/28/1986 | US4619159 Wrenching unit for use in power threading of a sleeve portion to a pipe portion used in makeup of oil well casings or the like |
| 10/21/1986 | US4618172 Dual-wall drill pipe |
| 10/21/1986 | US4617998 Drilling riser braking apparatus and method |
| 10/15/1986 | EP0105299B1 Casing stabbing tools |
| 10/14/1986 | US4616857 Bi-directional self-retaining cylindrical surface seal |
| 10/14/1986 | US4616708 Riser tensioning system |
| 10/14/1986 | US4616707 Riser braking clamp apparatus |
| 10/14/1986 | US4616705 Mini-well temperature profiling process |
| 10/08/1986 | EP0196712A1 Device for connecting and disconnecting hoses or pipes to and from difficultly accessible structures |
| 10/07/1986 | US4615542 Telescopic riser joint |
| 10/07/1986 | CA1212251A1 Weight type motion compensation system for a riser moored tanker |
| 10/01/1986 | EP0196284A1 Well drilling apparatus |
| 09/30/1986 | US4614120 Determination of the make-up torque for pipe joints |
| 09/24/1986 | CN86101212A Swivel-less coupling apparatus |