| Patents for E21B 17 - Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Casings; Tubings (27,800) |
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| 12/01/1992 | USH1116 Method for introducing reeled tubing into oil and gas wells |
| 12/01/1992 | US5168477 Method of and an apparatus for the ultrasonic identification of materials and equipments |
| 11/30/1992 | CA2068200A1 Reeled tubing gas lift mandrel |
| 11/26/1992 | WO1992014905A3 Device for the precise directional control of capping bores |
| 11/26/1992 | DE4116771A1 Boring through ground from starting pit for laying pipes and cables without digging trenches - has rod assembly that includes quick action bayonet couplings and locking devices |
| 11/24/1992 | US5165822 Pipe joint for driving pipes laid underground by the driving technique |
| 11/24/1992 | US5165492 Apparatus for preventing separation of a down-hole motor from a drill string |
| 11/24/1992 | US5165478 Downhole activated process and apparatus for providing cathodic protection for a pipe in a wellbore |
| 11/24/1992 | CA1310677C Hydraulic release joint for tubing systems |
| 11/21/1992 | CA2069057A1 Downhole reeled tubing inspection system with fiberoptic cable |
| 11/21/1992 | CA2069047A1 Reeled tubing support for downhole equipment module |
| 11/18/1992 | CN2122227U Energy-saving device for beam-pumping unit |
| 11/18/1992 | CN1066316A Hydraulic release system |
| 11/17/1992 | US5163714 Electronically-nonconducting system for the connection of metal tubular elements, especially suitable for use as an antenna framework located at great depth |
| 11/17/1992 | US5163524 Rotary drill bits |
| 11/17/1992 | US5163523 Screw thread structure for percussion drill driver sub and case |
| 11/17/1992 | US5163512 Multi-zone open hole completion |
| 11/17/1992 | US5163321 Borehole pressure and temperature measurement system |
| 11/12/1992 | WO1992019903A1 Multilayer fire protective coating |
| 11/12/1992 | WO1992019840A1 Hydraulic release system |
| 11/12/1992 | WO1992019783A1 Hardfaced drilling tool joints |
| 11/12/1992 | DE4119305C1 Forming tight connection between concrete pipe and embedded steel sleeve - uses sealing ring fixed at inner periphery of steel sleeve and subsequently deformed by applied force |
| 11/11/1992 | EP0512638A1 Drive shaft assembly |
| 11/11/1992 | EP0512154A1 Centralizer for casings and drill pipes |
| 11/10/1992 | US5161620 Subsea production wellhead assembly |
| 11/04/1992 | EP0511735A2 Controlled weak point break device for wireline cable |
| 11/04/1992 | CA2041808A1 Drive shaft assembly |
| 11/03/1992 | US5159982 Double walled riser |
| 11/03/1992 | US5159978 Connecting apparatus for logging tools including electrical feedthrough and isolation system with bridle assembly |
| 10/30/1992 | CA2059066A1 Controlled weak point for wireline cable |
| 10/29/1992 | DE4114232A1 Sleeve connector for pipes - has outer seals and inner seals held in position by holder extending into gap between pipe ends |
| 10/28/1992 | CN2120175U Low frictional resistance casing centralising device |
| 10/28/1992 | CN2120174U Plain cunthread, pumping rod and link |
| 10/28/1992 | CN2120173U Boriding cylinder casing for mud pump |
| 10/28/1992 | CA2067061A1 Centralizer for centring drilling and casing pipes and centralizing arrangement including said centralizer |
| 10/27/1992 | US5158142 Apparatus for releasing a pipe string from an object stuck downhole by continuously applying tension to said apparatus |
| 10/27/1992 | US5157802 Pipe thread cleaning apparatus |
| 10/22/1992 | DE4133802C1 Thermoplastics thrust pipe - has respective plug and socket ends with opposed angle cone design so it can mate with next section |
| 10/22/1992 | DE4114061C1 Coupling for deep boring drill rod - has two connectable sleeves onto which is welded a hollow rod and auxiliary pipes between which is connecting pipe, permitting unrestricted flow and eliminating blockage risks |
| 10/21/1992 | EP0509741A1 Tool string shock attenuating apparatus and method |
| 10/21/1992 | EP0509157A1 Retainer ring |
| 10/21/1992 | EP0340280A4 Self-propelled subsoil penetrating tool system |
| 10/21/1992 | CN2119494U Automatic location type eccentric device for centralising rigid casing |
| 10/21/1992 | CN2119493U Touch measuring device for centralising pole |
| 10/21/1992 | CN2119492U Elastic limit device for centralising casing |
| 10/21/1992 | CN1018749B Method of managing prodn. well |
| 10/21/1992 | CN1018747B Combined lower drill tool for decreasing batter of well |
| 10/20/1992 | US5156223 Fluid operated vibratory jar with rotating bit |
| 10/20/1992 | US5156206 Tubing connector |
| 10/20/1992 | CA1309120C Tubular connector |
| 10/20/1992 | CA1309083C Apparatus for controlled absorption of axial and torsional forces in a well string |
| 10/20/1992 | CA1309015C Method and apparatus for analyzing a multi-phase flow in a hydrocarbon well |
| 10/17/1992 | CA2066098A1 Shock attenuating apparatus and method |
| 10/15/1992 | WO1992017730A1 Drill casing connectors |
| 10/15/1992 | WO1992017679A2 Hydraulic release oil tool |
| 10/14/1992 | CN2118810U Double-pipe centralising device for large inclination well and horirontal well |
| 10/14/1992 | CN2118809U Steel fibre concrete boring pipe |
| 10/14/1992 | CN2118808U Anti-breaking device for oil pumping rod |
| 10/13/1992 | US5154867 Extrusion, cutting, drilling a longitudinal bore and cutting a slot into a polyethylene bar; for use inside oil well tubing |
| 10/13/1992 | US5154452 Tubular connection with S-thread form for clamping center seal |
| 10/13/1992 | US5153975 Apparatus for effecting bedding-in by screwing and unscrewing of screwthreaded joints for the assembly of tubes |
| 10/12/1992 | CA2063939A1 Hollow plastic sucker rod assembly |
| 10/10/1992 | WO1992018702A1 Water extraction components produced by adhesive bonds, process for their manufacture and their use |
| 10/10/1992 | CA2108173A1 Water procuring elements produced by bonded joints, a process for their production and their use |
| 10/10/1992 | CA2065169A1 Retainer ring |
| 10/07/1992 | WO1992017681A2 Retrievable bridge plug and a running tool therefor |
| 10/07/1992 | EP0506689A1 Drilling tool for widening a bore well. |
| 10/07/1992 | EP0506663A1 Centralizer, protector and stabilizer for use in wellbore and related method |
| 10/06/1992 | US5152554 For connecting to a cylindrical member |
| 10/06/1992 | US5152343 Reeled tubing gas lift mandrel |
| 09/30/1992 | EP0505815A2 Coil tubing electrical cable for well pumping system |
| 09/30/1992 | EP0505490A1 Downhole drill bit and bit coupling |
| 09/30/1992 | EP0365612B1 Drill |
| 09/30/1992 | CN2117587U End gauge for checking linearity of sucker rod end |
| 09/29/1992 | US5150987 Method for installing riser/tendon for heave-restrained platform |
| 09/29/1992 | US5150757 Methods and apparatus for drilling subterranean wells |
| 09/29/1992 | US5150750 Device for activating and measuring nonflowing producing wells |
| 09/29/1992 | US5150636 Rock drill bit and method of making same |
| 09/29/1992 | CA2061841A1 Helical rod guide |
| 09/23/1992 | EP0505261A2 Stand-off compensated formation measurements apparatus and method |
| 09/23/1992 | CN2116771U Working electric heating sucker rod |
| 09/22/1992 | US5150443 Cable for data transmission and method for manufacturing the same |
| 09/22/1992 | US5148877 Apparatus for lateral drain hole drilling in oil and gas wells |
| 09/22/1992 | US5148876 Lightweight drill pipe |
| 09/22/1992 | US5148875 Method and apparatus for horizontal drilling |
| 09/22/1992 | US5148874 High-pressure pipe string for continuous fusion drilling of deep wells, process and device for assembling, propelling and dismantling it |
| 09/22/1992 | US5148864 High pressure electrical cable packoff and method of making |
| 09/16/1992 | EP0502908A1 Fire protected pipe and pipeline |
| 09/16/1992 | CN2116075U Sealing centralizer for sucker rod |
| 09/16/1992 | CN2116074U Simple casinghead |
| 09/15/1992 | US5147996 Tungsten carbide hardfacing, drills |
| 09/15/1992 | US5147148 Heave-restrained platform and drilling system |
| 09/15/1992 | US5147000 Disc drill bit |
| 09/15/1992 | US5146984 Emergency release device for connecting between tubular members in oil and gas wells |
| 09/15/1992 | US5146982 Coil tubing electrical cable for well pumping system |
| 09/15/1992 | CA1307519C Apparatus and method for installing a conduit with an arcuate bore |
| 09/09/1992 | EP0502084A1 Device for steering the foremost part of a drill pipe. |
| 09/09/1992 | EP0413753B1 Tubing collar |
| 09/09/1992 | CN1064337A Method of installing well conductors |
| 09/08/1992 | US5145016 Rock bit with reaming rows |