| Patents for E21B 41 - Equipment or details not covered by groups (7,984) |
|---|
| 08/02/2001 | WO2001055553A1 System and method for fluid flow optimization in a gas-lift oil well |
| 08/02/2001 | WO2001055551A1 Vibration based downhole power generator |
| 08/02/2001 | US20010010782 Method and apparatus for connecting underwater conduits |
| 08/02/2001 | CA2627854A1 Vibration based downhole power generator |
| 07/31/2001 | US6268911 Monitoring of downhole parameters and tools utilizing fiber optics |
| 07/31/2001 | US6267716 Mixing cuttings produced during drilling operations comprising free hydrocarbons comprising bitumen with buffer solution to form emulsion; stabilization; adding encapsulating material water-soluble silicate to form silica shells around drops |
| 07/26/2001 | WO2000042287A9 Automated bore planning method and apparatus for horizontal directional drilling |
| 07/26/2001 | US20010009189 Method and apparatus for running two tubing strings into a well |
| 07/25/2001 | EP1117901A1 Control mechanism for a horizontal drilling machine |
| 07/25/2001 | EP1117894A2 Roller-cone bits, systems, drilling methods, and design methods with optimization of tooth orientation |
| 07/24/2001 | US6263968 Apparatus and methods for completing a wellbore |
| 07/19/2001 | WO2001051765A1 Methods and systems for producing off-shore deep-water wells |
| 07/19/2001 | WO2001051761A1 Steerable modular drilling assembly |
| 07/12/2001 | WO2001049973A1 Method and apparatus for downhole production testing |
| 07/12/2001 | WO2001049969A1 Flow control in a wellbore |
| 07/11/2001 | EP1113976A1 Boom arrangement for rock drilling apparatus |
| 07/11/2001 | CN2438873Y Gear box for pigging machine |
| 07/11/2001 | CN1303461A Boom arrangement for rock drilling apparatus |
| 07/11/2001 | CN1303341A Apparatus and method for deploying object or load on seabed |
| 07/10/2001 | US6257355 Downhole power generator |
| 07/10/2001 | US6257338 Method and apparatus for controlling fluid flow within wellbore with selectively set and unset packer assembly |
| 07/10/2001 | US6257332 Well management system |
| 07/04/2001 | EP1112433A2 Force-balanced roller-cone bits, systems, drilling methods, and design methods |
| 07/04/2001 | CN2437851Y Hydraulic well repair drilling tool pressurizing device |
| 07/03/2001 | US6254524 Injecting many high velocity jets of treating fluid into waste site over a limited depth in multiple directions through many holes |
| 07/03/2001 | US6253852 Lateral branch junction for well casing |
| 07/03/2001 | US6253849 Method of distinguishing the raising and lowering of tubing and sucker rods |
| 07/03/2001 | US6253848 Method of obtaining improved geophysical information about earth formations |
| 07/03/2001 | US6253846 Internal junction reinforcement and method of use |
| 06/28/2001 | DE19960824A1 Verfahren und Einrichtung zur Untersuchung und Identifizierung der Art eines Untergrunds Method and apparatus for testing and identification of the type of subsoil |
| 06/27/2001 | EP1109974A1 Well riser lateral restraint and installation system for offshore platform |
| 06/27/2001 | EP1109609A1 Apparatus and method for handling waste |
| 06/26/2001 | US6250405 Drill pipe protector assembly |
| 06/21/2001 | WO2001044620A1 System for producing de-watered oil |
| 06/21/2001 | WO2001044619A1 Controlling fluid flow in conduits |
| 06/20/2001 | EP1109034A1 Method and apparatus for investigation and identification of the nature of the underlying surface |
| 06/20/2001 | CN1299915A Automatically controlled rotation-controllable drilling system and drilling method |
| 06/19/2001 | US6247542 Non-rotating sensor assembly for measurement-while-drilling applications |
| 06/19/2001 | US6247536 Downhole multiplexer and related methods |
| 06/19/2001 | US6247532 Apparatus for establishing branch wells from a parent well |
| 06/13/2001 | EP1106777A1 Method and apparatus for steering a directional drilling tool |
| 06/12/2001 | US6246962 Method and apparatus for adaptively filtering noise to detect downhole events |
| 06/12/2001 | US6244340 Self-locating reentry system for downhole well completions |
| 06/12/2001 | US6244339 Apparatus for and a method of drilling a lateral borehole |
| 06/12/2001 | US6244337 System for sealing the intersection between a primary and a branch borehole |
| 06/07/2001 | WO2001040624A2 Production valve |
| 06/07/2001 | WO2001040622A1 Downhole pulser |
| 06/07/2001 | WO2001040621A1 Generating electric power in a wellbore |
| 06/07/2001 | WO2001040620A1 Downhole electric power generator |
| 06/07/2001 | WO2001040619A1 Electric power generator for use in a wellbore |
| 06/07/2001 | DE19955345A1 Bohrkopf mit Energieerzeugungsvorrichtung Drilling head with energy generating device |
| 06/05/2001 | US6241021 Methods of completing an uncemented wellbore junction |
| 06/05/2001 | US6241020 Method of recording a cross-load on a mobile repair unit for a well |
| 05/31/2001 | WO2001039412A1 Adaptive acoustic channel equalizer and tuning method |
| 05/31/2001 | WO2001039284A1 Piezoelectric downhole strain sensor and power generator |
| 05/31/2001 | WO2001038648A1 Methods and means of carrying off contaminated materials |
| 05/30/2001 | CN2432335Y Continuous automatic chemical-feeding device for oil well |
| 05/29/2001 | CA2208725C Above production disposal tool |
| 05/25/2001 | WO2001036783A1 Pipe racking system track cover |
| 05/25/2001 | WO2001036781A2 Drill head with a power generation device |
| 05/22/2001 | US6234717 Method and apparatus for connecting underwater conduits |
| 05/16/2001 | EP1099001A1 Cemented carbide for oil and gas applications |
| 05/15/2001 | US6231265 Self-aligning subsea latch mechanism |
| 05/15/2001 | US6230804 Stress resistant cement compositions and methods for using same |
| 05/10/2001 | WO2001033045A1 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 05/10/2001 | WO2001033044A1 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 05/10/2001 | WO2001006090A3 Tool and method for managing fluid flow in a well |
| 05/10/2001 | CA2376544A1 Drilling formation tester, apparatus and methods of testing and monitoring status of tester |
| 05/09/2001 | EP1097287A1 Floating spar for supporting production risers |
| 05/09/2001 | CN1065605C Method for connecting underwater pipelines particularly suitable for great depths and big diameters |
| 05/08/2001 | US6227467 Dispersing solid materials entrained in liquid; multi-shear rotary grinder; drive shaft connected to rotating attrition plate; hazardous wastes |
| 05/08/2001 | US6227302 Apparatus and method for controlling fluid flow in a wellbore |
| 05/03/2001 | WO2001031167A1 Flow control apparatus for use in a subterranean well |
| 05/03/2001 | WO2001031166A1 Method and device for replacing equipment on the seabed |
| 05/01/2001 | US6224534 Treatments for cuttings from offshore rigs |
| 05/01/2001 | US6223675 Underwater power and data relay |
| 04/28/2001 | CA2287732A1 Portable flare knockout |
| 04/26/2001 | WO2001029362A1 Positioning and conveying well apparatus and method |
| 04/19/2001 | WO2001027440A1 Well treatment fluids comprising mixed aldehydes |
| 04/19/2001 | WO2001027435A1 Apparatus for transferring electrical energy between rotating and non-rotating members of downhole tools |
| 04/18/2001 | EP1092078A1 Flying lead workover interface system |
| 04/17/2001 | US6216787 Apparatus for retrieving metal objects from a wellbore |
| 04/12/2001 | WO2001025587A1 Assembly and method for locating lateral wellbores |
| 04/12/2001 | WO2001016457A9 Method and apparatus for intersecting downhole wellbore casings |
| 04/11/2001 | CN2426524Y 油管旋转器 Tubing rotators |
| 04/10/2001 | US6213227 Oil and gas well cuttings disposal system with continous vacuum operation for sequentially filling disposal tanks |
| 04/10/2001 | US6213225 Force-balanced roller-cone bits, systems, drilling methods, and design methods |
| 04/10/2001 | US6213207 Method of distinguishing between installing different sucker rods |
| 04/10/2001 | CA2156984C Decentralizing, centralizing, locating and orienting subsystems and methods for subterranean multilateral well drilling and completion |
| 04/05/2001 | WO2001023706A1 Re-entry in multilateral wellbores |
| 04/05/2001 | WO2001023704A1 Tool assembly and monitoring applications using same |
| 04/04/2001 | EP0852652A4 Method for isolating multi-lateral well completions while maintaining selective drainhole re-entry access |
| 04/03/2001 | US6209653 Well lock with multiple shear planes and related methods |
| 04/03/2001 | US6209648 Method and apparatus for connecting a lateral branch liner to a main well bore |
| 04/03/2001 | US6209644 Assembly and method for forming a seal in a junction of a multilateral well bore |
| 04/03/2001 | US6209640 Method of obtaining improved geophysical information about earth formations |
| 04/03/2001 | US6209639 Method of ensuring that well tubing was properly stretched |
| 04/03/2001 | US6209636 Wellbore primary barrier and related systems |
| 04/03/2001 | US6209635 Positioning and conveying well apparatus and method |
| 03/29/2001 | WO2001021480A1 Underwater vehicle |