Patents for E21B 41 - Equipment or details not covered by groups (7,984)
01/2006
01/03/2006US6981549 Hydraulic fracturing method
01/03/2006CA2406663C Apparatus and methods for forming a lateral wellbore
12/2005
12/29/2005WO2005124397A1 Apparatus and methods for self-powered communication and sensor network
12/29/2005WO2005124096A1 Apparatus and method for moving drill cuttings
12/29/2005US20050284661 Method and system for predicting performance of a drilling system for a given formation
12/29/2005US20050284643 Flow nozzle assembly
12/29/2005CA2570344A1 Apparatus and methods for self-powered communication and sensor network
12/28/2005EP1609946A2 Flow nozzle assembly
12/28/2005EP1608843A1 Real-time drilling optimization based on mwd dynamic measurements
12/27/2005US6980940 Intergrated reservoir optimization
12/22/2005WO2005121840A1 Method for solving implicit reservoir simulation matrix equation
12/22/2005WO2005121502A1 Erosion resistent aperture for a downhole valve or ported flow control tool
12/22/2005WO2005120816A1 Downhole ultrasonic well cleaning device
12/22/2005WO2005120153A2 Method and system for deep sea drilling
12/22/2005US20050283277 Method and system for improving pump efficiency and productivity under power disturbance conditions
12/22/2005US20050281681 Method and system for improving pump efficiency and productivity under power disturbance conditions
12/22/2005US20050281680 Method and system for improving pump efficiency and productivity under power disturbance conditions
12/22/2005US20050279154 Method and apparatus for determining system integrity for an oilfield machine
12/22/2005CA2569102A1 Method for solving implicit reservoir simulation matrix equation
12/22/2005CA2566653A1 Downhole ultrasonic well cleaning device
12/21/2005EP1607571A2 Steerable modular drilling assembly
12/21/2005EP1606526A2 Method for preventing critical annular pressure buildup
12/21/2005EP1350309A4 Internal power source for downhole detection system
12/21/2005EP1295011B1 Apparatus and method to complete a multilateral junction
12/21/2005EP1276958B1 Electrical well heating system and method
12/21/2005EP1276957B1 Electrical well heating system and method
12/21/2005EP0862682B1 Autonomous downhole oilfield tool
12/21/2005CN1711407A A method and apparatus for creating a cemented lateral junction system
12/21/2005CN1711405A Downhole hydraulic control line connector
12/20/2005US6977499 Formation-based interpretation of NMR data for carbonate reservoirs
12/20/2005US6977367 Providing a light cell in a wellbore
12/20/2005CA2385757C Method and apparatus for multilateral well entry
12/20/2005CA2332893C Automatic hydrocarbon production management system
12/15/2005WO2005119002A1 Continuous positive flow backflash prevention system
12/15/2005WO2005119001A1 Separation of evolved gases from drilling fluids in a drilling operation
12/15/2005US20050278123 Automated bore planning system for horizontal directional drilling
12/15/2005CA2565939A1 Separation of evolved gases from drilling fluids in a drilling operation
12/14/2005EP1509670A4 Downhole cathodic protection cable system
12/14/2005EP1412030A4 Method for biosolid disposal and methane generation
12/14/2005EP1276965B1 A method for treating a hydrocarbon containing formation
12/13/2005US6973970 Apparatus and methods for establishing secondary hydraulics in a downhole tool
12/13/2005US6973967 hydrocarbons within a coal formation are converted in situ within the formation to yield a mixture of relatively high quality hydrocarbon products, hydrogen, and other products; the coal is heated to to temperatures that allow pyrolysis
12/13/2005CA2353228C Drilling apparatus with motor-driven pump steering control
12/08/2005WO2005116387A2 Deployment system
12/08/2005US20050273304 Methods for evaluating and improving drilling operations
12/08/2005US20050269137 Separation of evolved gases from drilling fluids in a drilling operation
12/08/2005US20050269135 Continuous positive flow backflash prevention system
12/08/2005US20050269084 Junction assembly, system and method for providing a downhole junction
12/08/2005US20050269078 Downhole ultrasonic well cleaning device
12/08/2005US20050269076 Erosion resistant aperture for a downhole valve or ported flow control tool
12/07/2005EP1601855A1 Apparatus and methods for remote installation of devices for reducing drag and vortex induced vibration
12/07/2005EP1064452B1 Formation testing apparatus and method
12/06/2005US6971238 Method for disposal of produced water
12/06/2005CA2180990C Milling method for liners extending into deviated wellbores
12/01/2005WO2005114501A1 Systems and methods for analysis of a commodity transmission network
12/01/2005WO2005112574A2 Flying lead connector and method for making subsea connections
12/01/2005US20050267719 Field synthesis system and method for optimizing drilling operations
12/01/2005US20050267718 Method for field scale production optimization by enhancing the allocation of well flow rates
11/2005
11/29/2005US6968909 Realtime control of a drilling system using the output from combination of an earth model and a drilling process model
11/29/2005US6968895 Drilling rig elevator safety system
11/29/2005CA2403948C Apparatus and method for downhole well equipment and process management,identification, and actuation
11/29/2005CA2337764C Apparatus and method for handling waste
11/29/2005CA2329775C Flying lead workover interface system
11/24/2005WO2005111371A2 Uncollapsed expandable wellbore junction
11/24/2005US20050257930 Method of developing a re-entry into a parent wellbore from a lateral wellbore, and bottom hole assembly for milling
11/24/2005CA2707063A1 Uncollapsed expandable wellbore junction
11/24/2005CA2563729A1 Uncollapsed expandable wellbore junction
11/23/2005CN2742129Y Full hydraulic vehicle carried integrated anti-spray operation machine
11/22/2005US6966372 In situ thermal processing of a hydrocarbon containing formation to produce oxygen containing formation fluids
11/17/2005WO2005108742A2 Method and apparatus for completing lateral channels from an existing oil or gas well
11/17/2005WO2005108741A1 Tool trap assembly and method
11/17/2005WO2004094766A3 Apparatus for radially expanding and plastically deforming a tubular member
11/17/2005US20050252689 Multi seam coal bed/methane dewatering and depressurizing production system
11/17/2005US20050252688 Drilling method
11/17/2005US20050252686 Electrically sequenced tractor
11/17/2005US20050252685 Floatable drill cuttings bag and method and system for use in cuttings disposal
11/17/2005US20050252661 Casing degasser tool
11/17/2005CA2563081A1 Tool trap assembly and method
11/16/2005EP0852653B1 Method and apparatus for selective horizontal well re-entry using retrievable diverter oriented by logging means
11/16/2005CN2740774Y Sebific duct riding chain protector of simple drilling rig
11/15/2005CA2408672C Wellbore liner system
11/15/2005CA2158291C Method for multi-lateral completion and cementing the juncture with lateral wellbores
11/13/2005CA2507105A1 Casing degasser tool
11/10/2005US20050247451 Method and apparatus for completing lateral channels from an existing oil or gas well
11/10/2005US20050247119 Method and apparatus for downhole fluid characterization using flexural mechanical resonators
11/10/2005DE10251496B4 Einrichtung zur Erzeugung von elektrischer Energie und von Druckimpulsen zur Signalübertragung Means for generation of electrical energy and pressure pulses to the signal transmission
11/08/2005US6962561 Method for biosolid disposal and methane generation
11/03/2005WO2005103439A1 Drill cutting deoiling
11/03/2005WO2005019600A3 Hydraulically actuated control system for use in a subterranean well
11/03/2005US20050246104 Method for management of multiple wells in a reservoir
11/03/2005US20050241834 Tubing/casing connection for U-tube wells
11/03/2005US20050241831 Anchor for branch wellbore liner
11/03/2005US20050241830 Uncollapsed expandable wellbore junction
11/03/2005CA2505667A1 Tubing/casing connection for u-tube wells
11/02/2005CN1690359A Method and apparatus and program storage device for front tracking in hydraulic fracturing simulators
11/01/2005US6959761 In situ thermal processing of a coal formation with a selected ratio of heat sources to production wells
11/01/2005US6959760 Downhole pulser
11/01/2005CA2120365C Method and apparatus for locating and re-entering one or more horizontal wells using whipstocks
10/2005
10/29/2005CA2505536A1 Flare stack safety system and method of use
10/27/2005WO2005101060A2 Method of managing multiple wells in a reservoir
1 ... 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 ... 80