Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 41 - Equipment or details not covered by groups
Patents for E21B 41 - Equipment or details not covered by groups (7,984)
09/2003
09/18/2003US20030173086 Method and apparatus for injecting steam into a geological formation
09/17/2003EP0974066A4 High impact communication and control system
09/16/2003US6619400 Apparatus and method to complete a multilateral junction
09/11/2003US20030168257 Realtime control of a drilling system using the output from combination of an earth model and a drilling process model
09/11/2003US20030167997 Subsea deployable drum for laying lines
09/09/2003US6615920 Template and system of templates for drilling and completing offset well bores
09/09/2003US6615917 Computer controlled injection wells
09/09/2003US6615916 Method of saving string of tools installed in an oil well and a corresponding transmission assembly
09/09/2003CA2216045C Apparatus and method for preparation of liquid/solid slurries
09/04/2003WO2003072907A1 Method for desinging a well completion
09/04/2003US20030164253 Fluid drilling system
09/04/2003US20030164240 Controllable gas-lift well and valve
09/04/2003US20030164238 In situ thermal processing of a coal formation using a controlled heating rate
09/04/2003US20030164234 In situ thermal processing of a hydrocarbon containing formation using a movable heating element
09/03/2003EP1340069A2 Spectral power ratio method and system for detecting drill bit failure and signaling surface operator
09/03/2003EP1015730B1 Oil and gas well cuttings disposal system with continuous vacuum operation for sequentially filling disposal tanks
09/03/2003EP1000219B1 A method of injecting drilling waste into a well while drilling
09/03/2003CN1440486A Apparatus and method for separating fluids underground
09/03/2003CN1440485A Well managment System
09/02/2003US6612382 Iterative drilling simulation process for enhanced economic decision making
08/2003
08/28/2003US20030159826 Method and system for avoiding damage to behind-casing structures
08/28/2003US20030159825 Multiple entrance shunt
08/27/2003EP1068425B1 Drillstring with stabilisers for re-entering a primary wellbore
08/26/2003US6610441 Annular pack
08/26/2003US6609668 Cavitation and cleaning tool
08/26/2003US6609570 In situ thermal processing of a coal formation and ammonia production
08/21/2003WO2003069118A1 A multilateral junction and method for installing multilateral junctions
08/21/2003CA2475564A1 A multilateral junction and method for installing multilateral junctions
08/19/2003US6607607 Coiled tubing wellbore cleanout
08/19/2003US6607033 In Situ thermal processing of a coal formation to produce a condensate
08/19/2003US6607030 Fluid-driven alternator having an internal impeller
08/14/2003WO2003067029A1 Autonomous downhole/reservoir monitoring and data transfer system
08/14/2003US20030150617 Multilateral junction and method for installing multilateral junctions
08/14/2003US20030150612 Downhole window finder and method of using the same
08/13/2003CN1436274A Method and system for treating hydrocarbon contg. formation
08/12/2003US6604584 Downhole activation system
08/12/2003CA2371371A1 Gas buster
08/07/2003WO2003064812A1 Apparatus and method for improved development of oil and gas wells
07/2003
07/31/2003WO2003062592A1 Cuttings disposal method
07/31/2003US20030142586 Smart self-calibrating acoustic telemetry system
07/31/2003US20030141065 In situ thermal processing of hydrocarbons within a relatively permeable formation
07/31/2003US20030141055 Drilling formation tester, apparatus and methods of testing and monitoring status of tester
07/31/2003US20030140711 Method and apparatus for flow measurement
07/30/2003EP0910725B1 Wellbores utilizing fiber optic-based sensors and operating devices
07/29/2003CA2078269C Divergent bean for drilling tools; tool using said bean
07/24/2003WO2002057589A3 Internal power source for downhole detection system
07/24/2003US20030139916 Method for simulating subsea mudlift drilling and well control operations
07/23/2003EP1328703A2 Downhole generator for horizontal directional drilling
07/23/2003CN2561925Y Air circuit antifreezing device of petroleum drill
07/23/2003CN1432097A In situ recovery from hydrocarbon contg. formation
07/22/2003US6595296 Hydraulic control assembly
07/17/2003US20030135083 Introducing the biosolids into an underground natural gas formation at a pressure sufficient to create and maintain fractures within the formation; and allowing degradation of the introduced biosolids.
07/17/2003US20030131990 Wellbores utilizing fiber optic-based sensors and operating devices
07/17/2003US20030131986 Wellbore power generating system for downhole operation
07/16/2003CN1430699A Method for treating hydrocarbon-containing formation
07/16/2003CN1430698A Method for treating hydrocarbon-containing formation
07/16/2003CN1430697A Method for treating hydrocarbon-containing formation
07/16/2003CN1430696A Heating system and method
07/16/2003CN1430695A Electrical well heating system and method
07/16/2003CN1429964A Centrifugal packed grinding and milling apparatus for oil well heavy maintenance
07/15/2003US6591907 Pyrolysis
07/15/2003US6591906 In situ thermal processing of a hydrocarbon containing formation with a selected oxygen content
07/10/2003WO2003056498A1 Method of load and failure prediction of downhole liners and wellbores
07/09/2003CN1429309A Method for treating hydrocarbon-containing formation
07/08/2003US6588985 Apparatus and method for deploying an object or a load on a seabed
07/08/2003US6588504 Conversion of hydrocarbons to produce hydrocarbons, hydrogen, and/or novel product streams from underground coal formations; pyrolysis
07/08/2003US6588503 In Situ thermal processing of a coal formation to control product composition
07/08/2003US6588266 Monitoring of downhole parameters and tools utilizing fiber optics
07/08/2003CA2188925C Sensor system for controlling ventilation systems in vehicles
07/03/2003WO2003054340A2 Installation of evacuated tubular conduits
07/03/2003US20030121703 Electrically sequenced tractor
07/02/2003CN2558763Y Mule-head hanger with spacer block
07/01/2003US6585115 Apparatus and method for transferring dry oil and gas well drill cuttings
06/2003
06/26/2003US20030116969 Annulus pressure operated electric power generator
06/26/2003US20030116324 Installation of evacuated tubular conduits
06/26/2003US20030116321 Long duration fuel cell system
06/26/2003US20030116316 Apparatus and method for downhole fluid separation
06/25/2003EP1320659A1 Method and system for wireless communications for downhole applications
06/24/2003US6581685 Method for determining formation characteristics in a perforated wellbore
06/24/2003US6581684 In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids
06/24/2003US6581453 Method and apparatus for detecting and localizing unwanted matter internally in a pipe string
06/19/2003WO2003050390A1 Borehole equipment position detection system
06/19/2003US20030111229 Wellhead assembly for communicating with the casing hanger annulus
06/18/2003EP1319800A1 Borehole equipment position detection system
06/18/2003EP1319297A2 Methods and apparatus for interactive communications
06/17/2003US6578630 Apparatus and methods for expanding tubulars in a wellbore
06/12/2003WO2003048620A1 Subsea connection apparatus
06/12/2003WO2003048518A2 Apparatus and method for horizontal subsea connection
06/12/2003US20030106713 Proppant recovery system
06/12/2003US20030106694 Method for disposal of liquid from gas wells
06/12/2003US20030106693 Subsea well injection and monitoring system
06/11/2003CA2372987A1 Method of disposal of liquid from gas wells
06/10/2003US6577954 Automated bore planning method and apparatus for horizontal directional drilling
06/10/2003US6577700 Neural network based multi-criteria optimization image reconstruction technique for imaging two- and three-phase flow systems using electrical capacitance tomography
06/10/2003US6575248 Fuel cell for downhole and subsea power systems
06/05/2003WO2003046333A2 Thermoacoustic electric power generation
06/05/2003WO2003046329A2 A wellhead assembly for communicating with the casing hanger annulus
06/04/2003EP1315881A1 Method and system for perforating
05/2003
05/28/2003EP1314851A2 Apparatus for completing a subterranean well and method of using same
05/28/2003EP1313665A1 Web-based system and method for evaluating oil and gas properties
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