| Patents for E21B 7 - Special methods or apparatus for drilling (22,064) |
|---|
| 09/18/2001 | US6290002 Pneumatic hammer drilling assembly for use in directional drilling |
| 09/18/2001 | US6289998 Downhole tool including pressure intensifier for drilling wellbores |
| 09/18/2001 | US6289997 Apparatus and method for controlling an underground boring machine |
| 09/18/2001 | CA2214741C Tractor for remote movement and pressurization of a rock drill |
| 09/18/2001 | CA2196711C Coring rod support wheel |
| 09/13/2001 | WO2001066901A1 Deflecting tool including millable or drillable plug and method of use |
| 09/13/2001 | WO2001066900A2 Method and apparatus for directional boring under mixed conditions |
| 09/13/2001 | WO1997027380A3 Method for forming a window in a tubular and apparatus for use in said method |
| 09/12/2001 | EP1132525A1 Excavation apparatus for forming piles in the ground |
| 09/12/2001 | EP1131535A2 Method and system for accessing subterranean deposits from the surface |
| 09/12/2001 | EP0954674B1 Drilling assembly with a steering device for coiled-tubing operations |
| 09/07/2001 | WO2001065050A1 Foundation for suction in installation of conductor casing |
| 09/07/2001 | WO2001065049A2 Cavitating jet |
| 09/06/2001 | DE10006973A1 Displacement piledriver has vibrator downhole part of drillpipe as flexibly joined to surface part carrying drillpipe reciprocating rotation motor plus concreting pipe right through pipe. |
| 09/05/2001 | EP1130213A1 Device for monitoring pipe installation |
| 09/05/2001 | EP1129272A1 Method and apparatus for remote control of a tubing exit sleeve |
| 09/04/2001 | US6283230 Method and apparatus for lateral well drilling utilizing a rotating nozzle |
| 09/04/2001 | US6283229 Impact device for directional boring |
| 09/04/2001 | US6283216 Apparatus and method for establishing branch wells from a parent well |
| 09/04/2001 | US6283208 Orienting tool and method |
| 08/30/2001 | WO2001063085A1 Device for drilling, especially percussion or rotary percussion drilling, holes |
| 08/30/2001 | WO2001025652A3 Torque transmission system for helical drilling tools |
| 08/30/2001 | WO2000047826A9 Short aggregate pier techniques |
| 08/30/2001 | US20010018007 Apparatus and method for the longitudinal splitting of pipes laid underground |
| 08/30/2001 | US20010017222 Directional drilling components and adaptors |
| 08/30/2001 | DE10007707A1 Soil compaction method, uses cyclic expansion and contraction of device in borehole to generate mechanical impulses |
| 08/29/2001 | EP1127477A1 Method and device in down-the-hole drilling |
| 08/28/2001 | US6280000 Method for production of gas from a coal seam using intersecting well bores |
| 08/28/2001 | US6279670 Downhole flow pulsing apparatus |
| 08/28/2001 | US6279669 Indexing mechanism and apparatus incorporating the same |
| 08/28/2001 | US6279668 Boring tool control using remote locator including a command generation arrangement and method |
| 08/28/2001 | US6279667 Rotating push rod boring system |
| 08/28/2001 | US6279659 Assembly and method for providing a means of support and positioning for drilling multi-lateral wells and for reentry therein through a premilled window |
| 08/23/2001 | WO2001061141A1 Horizontal directional drilling in wells |
| 08/23/2001 | WO2001061140A1 Guidance system for horizontal drilling |
| 08/23/2001 | WO2001061115A1 Method and device for compacting cohesive and non-cohesive material by means of pulsed displacement |
| 08/23/2001 | US20010015574 Method and system for accessing subterranean deposits from the surface |
| 08/23/2001 | DE10106942A1 Pneumatisches Bodenstechwerkzeug mit beweglichem Meißelkopf Pneumatic floor grooving tool with movable cutter head |
| 08/22/2001 | EP1126130A1 Process and device for trenchless laying of pipes |
| 08/22/2001 | EP1126129A1 Guidance system for horizontal drilling |
| 08/22/2001 | CN1309226A Relay drilling machine without drill rods for rock and clay |
| 08/21/2001 | US6276464 Stake coupler for a horizontal directional drill |
| 08/21/2001 | US6276453 Method and apparatus for forcing an object through the sidewall of a borehole |
| 08/16/2001 | WO2001059248A1 Method for inserting pipes into a bore hole and insertion drill head for carrying out said method |
| 08/16/2001 | EP1124037A1 Drilling device |
| 08/16/2001 | EP1123177A1 A device for the making of holes and/or demolition in concrete or the like |
| 08/16/2001 | DE10031663A1 Filterrohr und dessen Verwendung Filter tube and its use |
| 08/16/2001 | DE10008035A1 Rammfähiger Brunnenfilter Rammfähiger well filter |
| 08/14/2001 | US6273512 Hydrovac excavating blast wand |
| 08/14/2001 | US6273201 Pneumatic ground piercing tool with movable chisel head |
| 08/14/2001 | US6273193 Dynamically positioned, concentric riser, drilling method and apparatus |
| 08/14/2001 | US6273190 Wellbore sidetrack plug |
| 08/14/2001 | CA2142994C Method for forming a window in a subsurface well conduit |
| 08/09/2001 | US20010011591 Guide device |
| 08/09/2001 | DE10005475A1 Drilling device; has inner rod, hollow outer rod and rotation device to rotate both rods, which drives drive wheel of outer rod and drive wheel of inner rod |
| 08/07/2001 | US6272434 Drilling system with downhole apparatus for determining parameters of interest and for adjusting drilling direction in response thereto |
| 08/07/2001 | US6269892 Steerable drilling system and method |
| 08/07/2001 | US6269889 Ground piercing tool with plastic body |
| 08/02/2001 | US20010010432 Method and system for accessing subterranean deposits from the surface |
| 07/31/2001 | US6267187 Boring apparatus with coupling for rapid connection of drill string segments |
| 07/31/2001 | US6267179 Method and apparatus for accurate milling of windows in well casings |
| 07/31/2001 | CA2333250A1 Combined notching and jetting methods and related apparatus |
| 07/28/2001 | CA2331693A1 Drill bit for directional drilling |
| 07/26/2001 | WO2001053655A1 Improved method for the drilling of oil wells |
| 07/26/2001 | WO2001053650A1 Method and apparatus for a combined exit guide and sectional mill for sidetracking |
| 07/26/2001 | WO2000042287A9 Automated bore planning method and apparatus for horizontal directional drilling |
| 07/26/2001 | US20010009633 Device for connecting a towed pipe to a towing apparatus |
| 07/26/2001 | US20010009189 Method and apparatus for running two tubing strings into a well |
| 07/26/2001 | DE19947652C1 Schutzmantelerzeugung beim Verlegen von Leitungen Mantle generation when routing cables |
| 07/26/2001 | CA2396282A1 Improved method for the drilling of oil wells |
| 07/25/2001 | EP1117901A1 Control mechanism for a horizontal drilling machine |
| 07/25/2001 | CN1305562A Downhole milling device |
| 07/25/2001 | CN1305046A Multiple air hammer device and trenching direction correcting method |
| 07/24/2001 | US6264402 Method and apparatus for forming piles in place |
| 07/24/2001 | US6263987 One pass drilling and completion of extended reach lateral wellbores with drill bit attached to drill string to produce hydrocarbons from offshore platforms |
| 07/24/2001 | US6263985 Drilling machine with changeable drive unit |
| 07/24/2001 | US6263984 Method and apparatus for jet drilling drainholes from wells |
| 07/24/2001 | US6263983 Apparatus for directional drilling |
| 07/24/2001 | CA2255179C Drilling motor drill bit reaming stabilizer |
| 07/24/2001 | CA2221069C Method for horizontal directional drilling of rock formations |
| 07/24/2001 | CA2221068C Drill bit for horizontal directional drilling of rock formations |
| 07/24/2001 | CA2192185C Method for setting a whipstock in a wellbore |
| 07/19/2001 | WO2001051761A1 Steerable modular drilling assembly |
| 07/19/2001 | WO2001051760A2 System for automatically drilling and backreaming boreholes |
| 07/19/2001 | DE10011994C1 Seilzugvorrichtung für Berst-/Aufweitvorrichtungen Cable pulling device for burst / expansion devices |
| 07/17/2001 | US6260634 Sonde housing for directional drilling |
| 07/17/2001 | US6260633 Soil sampling apparatus removably attachable to a vehicle |
| 07/17/2001 | US6260623 Apparatus and method for utilizing flexible tubing with lateral bore holes |
| 07/12/2001 | WO2001049965A1 Integrated transmitter surveying while boring (swb) entrenching powering device for the continuation of a guided bore hole |
| 07/12/2001 | WO2001049964A1 Long gauge roller vane drilling motor |
| 07/12/2001 | CA2396532A1 Long gauge roller vane drilling motor |
| 07/11/2001 | EP1114237A1 Through-tubing retrievable whipstock system |
| 07/11/2001 | EP1113976A1 Boom arrangement for rock drilling apparatus |
| 07/11/2001 | EP1005602B1 Drilling system with means for anchoring in the borehole |
| 07/11/2001 | CN1303461A Boom arrangement for rock drilling apparatus |
| 07/10/2001 | US6259367 Lost and found system and method |
| 07/10/2001 | US6257356 Magnetorheological fluid apparatus, especially adapted for use in a steerable drill string, and a method of using same |
| 07/10/2001 | US6257353 Horizontal drilling method and apparatus |
| 07/10/2001 | US6257350 Multiple position staking system for a horizontal directional drill |
| 07/10/2001 | US6257349 Top head drive and mast assembly for drill rigs |