E21B 41 - Equipment or details not covered by groups

Patents for E21B 41 - Equipment or details not covered by groups (7,984)
11/2002
11/21/2002	WO2002092962A1 Expanding tubing
11/21/2002	WO2002092959A1 Apparatus and methods for tubular makeup interlock
11/21/2002	US20020170720 Apparatus and methods for tubular makeup interlock
11/21/2002	US20020170708 In situ production of synthesis gas from a hydrocarbon containing formation, the synthesis gas having a selected H2 to CO ratio
11/21/2002	CA2710362A1 Apparatus and methods for tubular makeup interlock
11/19/2002	CA2198565C Slidable access control device for subterranean lateral well drilling and completion
11/18/2002	CA2385793A1 Well reference apparatus and method
11/14/2002	WO2002091554A1 Downhole torque generator
11/14/2002	WO2002091553A1 Downhole torque-generating and generator combination apparatus
11/12/2002	US6478097 Electrically sequenced tractor
11/12/2002	US6478090 Method and apparatus of operating devices using actuators having expandable or contractable elements
11/07/2002	WO2002088508A1 Apparatus for use in a wellbore
11/07/2002	WO2002038914A3 System and method for signalling downhole conditions to surface
11/07/2002	WO2002035056A3 Downhole generator for horizontal directional drilling
11/07/2002	US20020162658 Apparatus for use in a well
11/07/2002	US20020162654 Fluid-driven alternator having an internal impeller
11/06/2002	EP1222360A4 Tool assembly and monitoring applications using same
11/06/2002	CN2519854Y Petroleum well repairing machine
11/04/2002	EP1214499A4 Well management system
10/2002
10/31/2002	US20020157826 Method and apparatus for completing a wellbore
10/30/2002	EP1252414A1 Method and operating devices having expandable element actuators
10/30/2002	EP1251912A1 Method for biosolid disposal and methane generation
10/29/2002	US6470980 Self-excited drill bit sub
10/29/2002	US6470978 Fluid drilling system with drill string and retro jets
10/29/2002	CA2236563C Jetting tool for well cleaning
10/29/2002	CA2071683C Apparatus and facilities for cleaning drains, especially in an oil well
10/24/2002	US20020156591 Method of managing a well file record at a well site
10/24/2002	US20020156582 Method of monitoring operations of multiple service vehicles at a well site
10/24/2002	US20020153888 Downhole NMR processing
10/24/2002	US20020153137 Method of optimizing the design, stimulation and evaluation of matrix treatment in a reservoir
10/24/2002	US20020153136 Method and apparatus for a downhole NMR MWD tool configuration
10/24/2002	US20020153134 Method of managing work orders at a well site
10/23/2002	EP1250513A1 System and method for fluid flow optimization in a gas-lift oil well
10/23/2002	EP1250512A1 Vibration based downhole power generator
10/23/2002	CA2382494A1 A method of managing a well file record at a well site
10/23/2002	CA2382492A1 A method of monitoring operations of multiple service vehicles at a well site
10/23/2002	CA2382490A1 Method of managing work orders at a well site
10/22/2002	US6469636 High-power well logging method and apparatus
10/22/2002	US6467492 Corrosion inhibitors
10/17/2002	WO2002081859A1 An apparatus for retrieving metal debris from a well bore
10/17/2002	US20020152030 Downhole sensing and flow control utilizing neural networks
10/17/2002	US20020148648 Internal power source for downhole detection system
10/17/2002	US20020148646 Adaptive filter prediction method and system for detecting drill bit failure and signaling surface operator
10/17/2002	US20020148644 Differential sensor measurement method and apparatus to detect a drill bit failure and signal surface operator
10/17/2002	US20020148618 Safety slip ram
10/17/2002	US20020148617 Well reference apparatus and method
10/16/2002	EP1249574A2 Multilateral well drilling and completion method and apparatus
10/16/2002	EP0988440B1 Control and monitoring system for chemical treatment of an oilfield well
10/16/2002	CN1092744C Equipment for establishing branch wells at node of parent well
10/15/2002	US6464011 Production well telemetry system and method
10/15/2002	US6464001 Multilateral wellbore system
10/15/2002	CA2250518C Hydrostatic, slow actuating subterranean well tool manipulation device and method
10/10/2002	WO2002079659A2 Method for preventing critical annular pressure buildup
10/10/2002	WO2002038909A3 Mean strain ratio analysis method and system for detecting drill bit failure and signaling surface operator
10/10/2002	US20020144842 System and method for signalling downhole conditions to surface
10/09/2002	EP1246994A1 Assembly and method for locating lateral wellbores
10/09/2002	EP1112433A4 Force-balanced roller-cone bits, systems, drilling methods, and design methods
10/08/2002	USRE37867 Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes
10/08/2002	US6460652 Boom arrangement for rock drilling apparatus
10/03/2002	WO2002077728A1 Field/reservoir optimization utilizing neural networks
10/03/2002	WO2001027440A9 Well treatment fluids comprising mixed aldehydes
10/03/2002	US20020140573 Pressure impulse telemetry apparatus and method
10/03/2002	US20020139581 Mean strain ratio analysis method and system for detecting drill bit failure and signaling surface operator
10/03/2002	US20020139536 Method for preventing critical annular pressure buildup
10/01/2002	US6457540 Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings
10/01/2002	US6457528 Method for preventing critical annular pressure buildup
09/2002
09/28/2002	CA2369669A1 Iterative drilling simulation process for enhanced economic decision making
09/26/2002	WO2002075103A1 Cover and method of making same
09/26/2002	WO2002038908A9 Differential sensor measurements to detect drill bit failure
09/26/2002	US20020138241 Field/reservoir optimization utilizing neural networks
09/26/2002	US20020138240 Method and apparatus for predicting an operating characteristic of a rotary earth boring bit
09/24/2002	US6454006 Methods and associated apparatus for drilling and completing a wellbore junction
09/19/2002	US20020132862 In situ heating; process control
09/18/2002	EP0830550B1 System for geothermal production of electricity
09/17/2002	CA2104695C Method for regaining mud circulation in operating well and device for its embodiment
09/12/2002	US20020126021 Permanent downhole, wireless, two-way telemetry backbone using redundant repeaters
09/12/2002	US20020124652 Spectral power ratio method and system for detecting drill bit failure and signaling surface operator
09/11/2002	CN1369032A Drilling and completion system for multilateral wells
09/10/2002	US6446736 Non-rotating sensor assembly for measurement-while-drilling applications
09/10/2002	US6446720 Methods of downhole testing subterranean formations and associated apparatus therefor
09/10/2002	US6446719 Methods of downhole testing subterranean formations and associated apparatus therefor
09/06/2002	WO2002038916A3 An apparatus and method for determining downhole bit failure
09/05/2002	US20020121377 Lift fluid driven downhole electrical generator and method for use of the same
09/05/2002	US20020121375 Apparatus and method for completing a junction of plural wellbores
09/05/2002	US20020121366 Induction choke for power distribution in piping structure
09/04/2002	EP1109974A4 Well riser lateral restraint and installation system for offshore platform
09/03/2002	US6446014 Method and apparatus for measuring and controlling the flow of fluids from coal seam gas wells
09/03/2002	CA2276222C High pressure internal sleeve for use with easily drillable exit ports
09/03/2002	CA2074022C Sand control with resin and explosive
08/2002
08/29/2002	WO2002066791A1 Downhole sensing and flow control utilizing neural networks
08/29/2002	WO2002066789A1 Modeling of reservoir stimulation treatment
08/29/2002	WO2002044520A3 Spool for injecting a fluid between casings
08/29/2002	US20020120401 Method and apparatus for prediction control in drilling dynamics using neural networks
08/29/2002	US20020117337 Drill pipe protector
08/29/2002	US20020117305 Cuttings injection and annulus remediation systems for wellheads
08/29/2002	US20020117303 Production of synthesis gas from a hydrocarbon containing formation
08/28/2002	EP1234100A2 Production valve
08/28/2002	EP1234099A1 Downhole pulser
08/28/2002	EP1234098A1 Generating electric power in a wellbore
08/28/2002	EP1234097A1 Downhole electric power generator

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