| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 09/25/1985 | EP0155540A1 Apparatus working like an excavator for pushing pipes under the soil |
| 09/24/1985 | US4542796 Process and device for drilling the soil |
| 09/17/1985 | US4541755 Device and process for lowering and connecting the four guide lines to guide posts of an underwater station |
| 09/17/1985 | US4541754 Device and process for lowering a connector suspended from guide line to a guide column installed on an underwater station |
| 09/12/1985 | WO1985003963A1 Reversible pneumatic impacting device for forming wells in the soil |
| 09/10/1985 | CA1193187A1 Multiterminators for riser pipes |
| 09/04/1985 | EP0153567A1 Combined large-diameter and blast hole drilling device |
| 09/03/1985 | US4538858 Apparatus for drilling and inserting a horizontal pipe |
| 09/03/1985 | US4538522 Cable gripping apparatus having forward and rearward movement capabilities |
| 09/03/1985 | CA1192752A1 Well support system |
| 08/27/1985 | US4537533 Installation and levelling of subsea templates |
| 08/27/1985 | US4537263 Method and means for adjusting the feed support of a rock drilling unit into a given distance from the drilling location |
| 08/20/1985 | US4535853 Drill bit for jet assisted rotary drilling |
| 08/20/1985 | CA1192179A1 Method and apparatus for drilling a well bore |
| 08/13/1985 | US4534676 Excavating and propelling machine for laying pipelines underground |
| 08/13/1985 | US4534427 Abrasive containing fluid jet drilling apparatus and process |
| 08/13/1985 | US4534231 Method and device for taking soil samples |
| 08/07/1985 | EP0150977A2 Earth drill |
| 08/06/1985 | CA1191451A1 Means for sealing a gap around a conductor pipe |
| 08/06/1985 | CA1191356A1 Replacement of mains |
| 07/30/1985 | US4531596 Tool for boring an enlarged portion within the interior of a hole and a tiltable tool for completing that tool |
| 07/24/1985 | EP0149528A1 Device for replacing mains |
| 07/24/1985 | EP0149056A1 Movable drilling device |
| 07/23/1985 | US4530410 Hole boring apparatus and method |
| 07/23/1985 | US4530190 Self-anchoring fence post and method of installing same |
| 07/23/1985 | CA1190920A1 Mobile drilling apparatus |
| 07/17/1985 | EP0148588A1 Underground longhole drilling machine |
| 07/16/1985 | US4529046 Device for producing boreholes in coal or the like |
| 07/09/1985 | US4527640 Working platform for a drilling apparatus |
| 07/09/1985 | US4527639 Hydraulic piston-effect method and apparatus for forming a bore hole |
| 07/09/1985 | US4527637 Cycloidal drill bit |
| 07/03/1985 | EP0147144A2 Conductor guide arrangements for offshore well platforms |
| 07/03/1985 | EP0147095A1 Improvements in pipe laying and replacement |
| 07/03/1985 | EP0146918A1 Tunnel boring system for driving tunnels by means of pipe pushing |
| 07/02/1985 | US4526242 Drilling device |
| 07/02/1985 | US4526241 Adjustable length drilling sub |
| 07/02/1985 | US4526232 Method of replacing a corroded well conductor in an offshore platform |
| 07/01/1985 | EP0060840A4 Method and apparatus for running and cementing pipe. |
| 06/26/1985 | EP0146365A2 Conductor guide arrangements for offshore well platforms |
| 06/26/1985 | EP0146331A1 A device and method for removing irregularities in or enlarging an underground duct |
| 06/26/1985 | EP0146009A1 Device for driving ground anchors for anchoring fluid conveying pipelines to the ground |
| 06/19/1985 | EP0145241A2 Improvements in or relating to apparatus and methods for driving projectiles |
| 06/19/1985 | EP0144425A1 Vertical hole-boring machine |
| 06/19/1985 | EP0144390A1 A safety arrangement in gas-cutting lances. |
| 06/18/1985 | US4523652 Drainhole drilling assembly and method |
| 06/18/1985 | US4523651 Coal auger guidance system |
| 06/11/1985 | US4522273 Drilling rig |
| 06/11/1985 | US4522272 Apparatus for directional drilling of subterranean wells |
| 06/11/1985 | US4522271 Method and apparatus for damping vibrations in drill collar strings |
| 06/11/1985 | US4522234 Multiple conduit drill pipe |
| 06/11/1985 | CA1188678A1 Boring devices |
| 06/04/1985 | US4520886 Rotary drilling tool with percussion device |
| 05/29/1985 | EP0142545A1 Drilling equipment |
| 05/28/1985 | US4519725 Offshore structure incorporating a conductor deflecting system |
| 05/28/1985 | US4519463 Drainhole drilling |
| 05/28/1985 | US4519462 Cable following apparatus having cable cleaning capabilities and method |
| 05/28/1985 | CA1187868A1 Guideline system for positioning subsea equipment |
| 05/23/1985 | WO1985002215A1 Improvements in pipe laying and replacement |
| 05/21/1985 | US4518048 Method for improved hydraulic jetting of drill bore holes using high pressure pulses of fluid |
| 05/14/1985 | US4516882 Method and apparatus for conversion of semi-submersible platform to tension leg platform for conducting offshore well operations |
| 05/14/1985 | US4516881 Multiterminators for riser pipes |
| 05/09/1985 | WO1985001983A1 Improved drilling method and apparatus |
| 05/07/1985 | CA1186677A1 Method and means for drilling in rocks |
| 05/07/1985 | CA1186515A1 Ice island structure and drilling method |
| 05/02/1985 | EP0138820A1 Plant for making bore-holes in the side walls of underground exploitation chambers of small width. |
| 04/30/1985 | US4514796 Method and apparatus for controlling the position of a hydraulic boom |
| 04/23/1985 | US4512425 Up-drill sub for use in rotary drilling |
| 04/23/1985 | US4512422 Apparatus for drilling oil and gas wells and a torque arrestor associated therewith |
| 04/17/1985 | EP0030971B1 Apparatus for drilling into the sidewall of a drill hole |
| 04/16/1985 | US4511287 Submerged buoyant offshore drilling and production tower |
| 04/16/1985 | US4510985 Stacked open bottom temporary guide base for offshore drilling |
| 04/11/1985 | WO1985001536A1 A drilling machine to be coupled to an excavator |
| 04/10/1985 | EP0137000A1 Vehicle |
| 04/10/1985 | EP0136935A1 Device for drilling a multidrain oil well and for putting it into production |
| 04/09/1985 | CA1185228A1 Well pipe jack |
| 04/02/1985 | US4508389 Apparatus and method for hydraulically mining unconsolidated subterranean mineral formations |
| 04/02/1985 | US4508182 Method and apparatus for controlling azimuthal drift of a drill bit |
| 04/02/1985 | US4508181 Driving head for pneumatic pile drivers |
| 04/02/1985 | US4508035 Explosive charging apparatus for rock drilling |
| 03/27/1985 | EP0030970B1 Apparatus and method for drilling into the sidewall of a drill hole |
| 03/26/1985 | US4507019 Method and apparatus for replacing buried pipe |
| 03/26/1985 | US4506745 Method and means for drilling in rocks |
| 03/20/1985 | EP0134467A2 Target-directed drilling rod for rotating boring tools with flushing duct for underground mining |
| 03/19/1985 | US4505302 Replacement of mains |
| 03/19/1985 | CA1184172A1 Borehole guide |
| 03/12/1985 | US4503919 Boring devices |
| 03/12/1985 | US4503918 Rock drilling apparatus |
| 03/12/1985 | CA1183772A1 Self powered downhole tool anchor |
| 03/05/1985 | US4502552 Vibratory rotary drilling tool |
| 03/05/1985 | US4502551 Deep draft drilling platform |
| 02/26/1985 | US4501513 Method and apparatus for forming a heat exchange system in the earth |
| 02/26/1985 | US4501337 Apparatus for forming and using a bore hole |
| 02/26/1985 | US4501336 Method and apparatus of a self-aligning sleeve for the correction of the direction of deviated boreholes |
| 02/26/1985 | US4501199 Automatically controlled rock drilling apparatus |
| 02/19/1985 | US4499954 Geotechnical cone lubrication apparatus and method |
| 02/19/1985 | US4499953 Apparatus for drilling rock |
| 02/19/1985 | CA1182716A1 Telescoping boom supported flip-flop service line |
| 02/19/1985 | CA1182652A1 Cable following apparatus utilizing a releasable cable gripping mechanism |
| 02/13/1985 | EP0132742A1 Method and apparatus for controlling azimuthal drift of a drill bit |
| 02/12/1985 | US4498544 Method for rock drilling |