| Patents for E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (2,021) |
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| 07/19/2007 | US20070163186 Arctic platform |
| 07/17/2007 | US7243725 Surge chamber assembly and method for perforating in dynamic underbalanced conditions |
| 07/10/2007 | US7241077 Underwater installation apparatus |
| 07/10/2007 | US7241075 Umbilical anchoring clamp |
| 07/04/2007 | EP1802843A1 Drill bushing |
| 07/04/2007 | CN1323927C Elevator system |
| 07/03/2007 | US7237613 Underbalanced marine drilling riser |
| 06/28/2007 | US20070144781 Instrumented drill head, related drilling/bolting machines, and methods |
| 06/27/2007 | EP1799953A1 Rock drilling rig, service platform connected to a rock drilling rig and a roof for a service platform |
| 06/27/2007 | CN1989312A A method and a device for expanding a body under overpressure |
| 06/27/2007 | CN1323222C Process and device for recovery of oil from natural oil reservoir |
| 06/21/2007 | US20070137854 Resistivity Tool with Selectable Depths of Investigation |
| 06/20/2007 | EP1797276A1 Sleeve arrangement |
| 06/20/2007 | EP1797275A1 Housing arrangement |
| 06/20/2007 | EP1796877A1 Rock drilling device |
| 06/20/2007 | CN1984755A Method for controlling percussion device, software product, and percussion device |
| 06/20/2007 | CN1322221C Feeding and supporting unit of movable drilling machine |
| 06/19/2007 | US7231977 Continuous monobore liquid lining system |
| 06/19/2007 | US7231971 Downhole safety valve assembly having sensing capabilities |
| 06/14/2007 | WO2007067786A1 Plug retrieval and debris removal tool |
| 06/14/2007 | WO2007067063A1 A device for a borehole arrangement |
| 06/14/2007 | CA2629607A1 A device for a borehole arrangement |
| 06/13/2007 | EP1794407A1 Bend stiffener |
| 06/13/2007 | EP1794406A1 Rock drill bit |
| 06/07/2007 | WO2007064232A1 Top drive drilling apparatus |
| 06/07/2007 | WO2007064231A1 Top drive drilling apparatus |
| 06/07/2007 | WO2007064218A1 Drill fluid collecting device |
| 06/07/2007 | CA2631313A1 Top drive drilling apparatus |
| 06/07/2007 | CA2630793A1 Top drive drilling apparatus |
| 06/06/2007 | EP1792051A1 Arrangement for controlling percussive rock drilling |
| 06/06/2007 | EP1791681A1 Method for breaking rock |
| 06/05/2007 | US7225879 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 05/31/2007 | WO2007061315A1 Method and device for positioning a power tong at a pipe joint |
| 05/30/2007 | EP1540219B1 Method and apparatus for replacement of underground pipe |
| 05/30/2007 | CN1973109A Telescopic feed beam for rock drill |
| 05/22/2007 | US7220067 Cable splice protector |
| 05/22/2007 | US7219752 System and method for damping vibration in a drill string |
| 05/22/2007 | US7219738 Inner riser adjustable hanger and seal assembly |
| 05/18/2007 | WO2007055590A1 Flow divider and separation system |
| 05/16/2007 | EP1784554A1 Method and system for return of drilling fluid |
| 05/15/2007 | CA2207755C A drilling method and bit assembly to realize the method |
| 05/10/2007 | US20070104027 Tool for measuring perforation tunnel depth |
| 05/09/2007 | EP1781892A1 A rock drill bit and a thread joint |
| 05/03/2007 | WO2006062460A8 Arrangement and method for controlling drilling parameters |
| 05/02/2007 | EP1778443A1 Method for controlling percussion device, software product, and percussion device |
| 04/26/2007 | US20070090039 Apparatus and method for treating injection fluid |
| 04/19/2007 | WO2007042618A1 Method and rock drilling rig for hole drilling |
| 04/19/2007 | WO2005017303B1 Expandable tubular |
| 04/18/2007 | EP1774137A1 System for delivery of a tracer in fluid transport systems and use thereof |
| 04/18/2007 | EP1774132A1 A drill bit |
| 04/18/2007 | CN1950586A Method and system for collaring |
| 04/12/2007 | US20070081768 Downhole Fiber Optic Wet Connect and Gravel Pack Completion |
| 04/10/2007 | US7201229 Tree mounted well flow interface device |
| 04/10/2007 | US7201226 Downhole measurement system and method |
| 04/05/2007 | WO2005121506A8 Method and system for collaring |
| 04/05/2007 | US20070074876 Apparatus for facilitating the connection of tubulars using a top drive |
| 04/03/2007 | US7198108 Changing the temperature of offshore produced water |
| 03/29/2007 | WO2007035107A1 Method and device for dosing of chemicals into injection water |
| 03/29/2007 | WO2004094763A3 Low cost inductor devices manufactured from conductive loaded resin-based materials |
| 03/29/2007 | US20070068675 Method for drilling and completing wells |
| 03/28/2007 | EP1766186A1 Method and system for collaring |
| 03/27/2007 | CA2447747C Cutting element having enhanced cutting geometry |
| 03/22/2007 | WO2007032687A1 Separating device |
| 03/20/2007 | US7191832 Gravel pack completion with fiber optic monitoring |
| 03/20/2007 | US7191831 Downhole formation testing tool |
| 03/15/2007 | WO2007030017A1 Pressure accumulator to establish sufficient power to handle and operate external equipment, and use thereof |
| 03/15/2007 | WO2005017303A3 Expandable tubular |
| 03/15/2007 | US20070056743 Method of radially expanding and plastically deforming tubular members |
| 03/14/2007 | CN1930363A Clamping apparatus, drill string component and rock drilling rig |
| 03/14/2007 | CN1930362A Single pass drilling apparatus, use a one-piece drill bit, method and rock bolt for single pass rock bolting |
| 03/14/2007 | CN1930361A A method and device for establishing an underground well |
| 03/13/2007 | US7188677 Tensioning system for production tubing in a riser at a floating installation for hydrocarbon production |
| 03/08/2007 | WO2007026052A1 Adaptive user interface for rock drilling rig |
| 03/08/2007 | WO2007026051A1 User interface for rock drilling rig |
| 03/08/2007 | CA2619066A1 Adaptive user interface for rock drilling rig |
| 03/07/2007 | EP1759087A1 A method of filtering pump noise |
| 03/07/2007 | EP1305502B1 Vibration based power generator |
| 03/01/2007 | US20070047867 Downhole fiber optic acoustic sand detector |
| 02/28/2007 | EP1756395A1 A method and a device for expanding a body under overpressure |
| 02/28/2007 | EP1756392A1 A device in plants for the collection of particles sedimented from water |
| 02/28/2007 | CN1922385A Method and actuator device |
| 02/22/2007 | US20070041501 Apparatus and a method for visualizing target objects in a fluid-carrying pipe |
| 02/20/2007 | US7178612 Automated arm for positioning of drilling tools such as an iron roughneck |
| 02/20/2007 | US7178591 Apparatus and method for formation evaluation |
| 02/15/2007 | WO2005042906A3 Subsea completion system, and methods of using same |
| 02/15/2007 | US20070034409 Method and apparatus for a downhole excavation in a wellbore |
| 02/15/2007 | US20070034383 Apparatus and method for radially expanding a wellbore casing using an expansion mandrel and a rotary expansion tool |
| 02/15/2007 | US20070034369 Controlling transient pressure conditions in a wellbore |
| 02/14/2007 | EP1751393A1 Telescopic feed beam for rock drill |
| 02/08/2007 | WO2007015647A1 Adjustable winged centering tool for use in pipes with varying diameter |
| 02/08/2007 | WO2004092529A3 Arctic platform |
| 02/08/2007 | US20070029095 Apparatus and method for running a radially expandable tubular member |
| 02/08/2007 | US20070029094 Heavy load carry slips and method |
| 02/08/2007 | CA2615767A1 Adjustable winged centering tool for use in pipes with varying diameter |
| 02/06/2007 | US7172038 Well system |
| 01/30/2007 | US7168510 Electrical transmission apparatus through rotating tubular members |
| 01/25/2007 | US20070017681 System, lifting device and method for supporting a pipe string |
| 01/23/2007 | US7165892 Downhole fiber optic wet connect and gravel pack completion |
| 01/18/2007 | WO2007008085A1 System and method for dynamic sealing around a drill stem |
| 01/18/2007 | WO2005047639A3 Subsea completion system and method of using same |