| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 06/04/1985 | CA1188364A1 Method of and apparatus for mining analysis |
| 05/28/1985 | US4519970 First and second tubular portions hermetically coupled |
| 05/22/1985 | EP0142365A1 Protector clamp for well control lines |
| 05/21/1985 | US4518888 For use in a drill string operating in a borehole |
| 05/21/1985 | US4518048 Method for improved hydraulic jetting of drill bore holes using high pressure pulses of fluid |
| 05/21/1985 | CA1187314A1 Tube material for sour wells of intermediate depths |
| 05/15/1985 | EP0141746A2 Annular electrical contact apparatus for use in drill stem testing |
| 05/15/1985 | EP0141728A2 Device for sound attenuation of drills |
| 05/14/1985 | US4516917 Well pumping apparatus and method |
| 05/14/1985 | US4516881 Multiterminators for riser pipes |
| 05/14/1985 | US4516633 Blind shaft drilling |
| 05/14/1985 | US4516608 Tubular member |
| 05/08/1985 | EP0140311A1 Apparatus for reducing friction between rotating drill pipe and the well bore |
| 05/07/1985 | US4515400 Wellhead assembly |
| 05/02/1985 | EP0139565A1 Conical thread configuration for rapid make-up connection |
| 05/02/1985 | EP0138820A1 Plant for making bore-holes in the side walls of underground exploitation chambers of small width. |
| 04/30/1985 | US4513995 Electroless nickel coating prior to tin plating |
| 04/30/1985 | US4513822 Anchor seal assembly |
| 04/30/1985 | US4513817 Casing bore receptacle |
| 04/30/1985 | CA1186214A1 Fairing for elogated elements |
| 04/25/1985 | WO1985001762A1 Buoyancy support for deep-ocean struts |
| 04/24/1985 | EP0138603A2 Improvements in or relating to rods and pipes |
| 04/23/1985 | US4512791 Hermetically sealed insulating assembly |
| 04/23/1985 | US4512721 Titanium of zirconium getter |
| 04/23/1985 | US4512692 Tool shaft for a tool of the percussive and rotative type |
| 04/23/1985 | US4512596 Anti-unscrewing devices |
| 04/23/1985 | US4512425 Up-drill sub for use in rotary drilling |
| 04/23/1985 | US4512424 Tubular spring slip-joint and jar |
| 04/23/1985 | CA1185963A1 Well tool |
| 04/23/1985 | CA1185895A1 Quick release downhole motor coupling |
| 04/16/1985 | US4511287 Submerged buoyant offshore drilling and production tower |
| 04/16/1985 | US4511007 Locking device for a tool with telescopically displaceable parts |
| 04/16/1985 | US4510797 Full-bore drill stem testing apparatus with surface pressure readout |
| 04/16/1985 | US4510696 Surveying of boreholes using shortened non-magnetic collars |
| 04/16/1985 | CA1185635A1 Connector assembly |
| 04/16/1985 | CA1185591A1 Method and means for pulling sucker rod strings |
| 04/16/1985 | CA1185521A1 Non-weld casing centralizer |
| 04/09/1985 | US4509777 Weld-on casing connector |
| 04/09/1985 | US4509776 Corrosion-resistant pipe coupling structures |
| 04/09/1985 | US4509605 Wireline protector with improved clamping mechanism |
| 04/09/1985 | US4509558 Flexible hose |
| 04/02/1985 | US4508577 Fluid jet apparatus and method for cleaning tubular components |
| 04/02/1985 | US4508375 Tubular connection |
| 04/02/1985 | US4508182 Method and apparatus for controlling azimuthal drift of a drill bit |
| 04/02/1985 | US4508167 Selective casing bore receptacle |
| 04/02/1985 | US4507842 Method of sealing and protecting a plastic lined pipe joint |
| 03/26/1985 | US4506730 Device for assembling jacketed lengths of pipe base well screens |
| 03/26/1985 | US4506729 Drill string sub with self closing cable port valve |
| 03/26/1985 | US4506432 Method of connecting joints of drill pipe |
| 03/26/1985 | CA1184585A1 Connector |
| 03/20/1985 | EP0134467A2 Target-directed drilling rod for rotating boring tools with flushing duct for underground mining |
| 03/19/1985 | US4506219 Borehole tool outrigger arm displacement control mechanism |
| 03/19/1985 | US4505618 Marine riser protector for use on offshore oil drilling rigs in icy waters |
| 03/19/1985 | US4505617 Stabilizing bluff structures against oscillation |
| 03/19/1985 | US4505614 For centering a pipe in an opening in a support |
| 03/19/1985 | US4505343 Plural-part earth bit, and an improved bit head therefor |
| 03/19/1985 | US4505155 Borehole pressure measuring system |
| 03/13/1985 | EP0134177A1 Drill rods particularly for gas or oil wells with a zone for receiving the holding slips |
| 03/12/1985 | CA1183886A1 Pipe connectors |
| 03/12/1985 | CA1183773A1 Oil well casing and tubing joint and production of same |
| 03/12/1985 | CA1183771A1 Riser tensioner |
| 03/05/1985 | US4502552 Vibratory rotary drilling tool |
| 02/26/1985 | US4501443 Fluidtight pipe joint |
| 02/26/1985 | US4501440 Insulated tubing joint |
| 02/26/1985 | US4501337 Apparatus for forming and using a bore hole |
| 02/26/1985 | US4501330 Well completion apparatus and method |
| 02/26/1985 | US4501327 Split casing block-off for gas or water in oil drilling |
| 02/26/1985 | US4501058 Method of pre-stressing a structural member |
| 02/19/1985 | US4500263 Electrically driven submersible pump system |
| 02/19/1985 | US4500224 Coupling for sucker rod assembly |
| 02/19/1985 | US4500156 Electrical connector |
| 02/19/1985 | US4499924 Method of making a drill pipe wear sleeve assembly and product thereof |
| 02/19/1985 | CA1182745A1 Packerless well completion assembly |
| 02/13/1985 | EP0132742A1 Method and apparatus for controlling azimuthal drift of a drill bit |
| 02/12/1985 | US4498548 Well jar incorporating elongate resilient vibration snubbers and mounting apparatus therefor |
| 02/12/1985 | CA1182490A1 Tool joint with internal/external make-up shoulder |
| 02/12/1985 | CA1182394A1 High temperature insulated casing |
| 02/05/1985 | US4497866 Sucker rod |
| 02/05/1985 | US4497371 Setting tool and retrievable landing assembly |
| 02/05/1985 | CA1182147A1 Corrosion-resistant pipe coupling structures |
| 02/05/1985 | CA1182104A1 Method and apparatus for forming and using a bore hole |
| 02/05/1985 | CA1182040A1 Remotely replaceable guidepost method and apparatus |
| 02/05/1985 | CA1181992A1 Wire assemblies for repetitive, continuous cycle, tensile load conditions, particularly sucker rods for oil wells |
| 01/30/1985 | EP0132423A1 Borehole logging and work-over method and apparatus |
| 01/29/1985 | US4496203 Drill pipe sections |
| 01/29/1985 | US4496174 Insulated drill collar gap sub assembly for a toroidal coupled telemetry system |
| 01/29/1985 | US4496173 Threaded coupling |
| 01/29/1985 | US4495997 Well completion system and process |
| 01/29/1985 | US4495804 Method of and apparatus for mining analysis |
| 01/29/1985 | CA1181680A1 Deep water riser system for offshore drilling |
| 01/23/1985 | EP0131771A1 Drilling device, especially for underground mining |
| 01/23/1985 | EP0131621A1 Tubular joint with trapped mid-joint metal to metal seal. |
| 01/22/1985 | US4494777 Closed angle thread pipe joint |
| 01/22/1985 | US4494607 Method of cleaning and inhibiting sucker rod corrosion |
| 01/16/1985 | EP0131517A2 Arm mechanism supporting a borehole logging shoe |
| 01/16/1985 | EP0131065A2 Method and apparatus for ultrasonic testing of tubular goods |
| 01/15/1985 | US4494072 Well logging apparatus with replaceable sensor carrying insulating sleeve disposed in rotation restrained position around a drill string |
| 01/15/1985 | US4493380 Hydraulic straight hole drill collar |
| 01/15/1985 | US4493372 Well completion system and process |
| 01/15/1985 | CA1181002A1 Stinger assembly for oil well tool |