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)
03/2014
03/20/2014US20140076541 Gas Guzzler
03/20/2014US20140076532 Extendable conductor stand having multi-stage blowout protection
03/19/2014EP2708695A1 Turbine speed control system for downhole tool
03/19/2014CN203488151U Protection device for blowout prevention hanger
03/19/2014CN203488150U Waterproof device on fully-intelligent wax-proof viscosity-reducing device
03/19/2014CA2827638A1 Reservoir
03/17/2014CA2825930A1 Method and system for installing subsea well trees
03/13/2014WO2013066825A3 Traversable, segmented wellbore obstructions
03/13/2014WO2013032992A3 Hyper-dimensional simulation for reservoir engineering and geosciences
03/13/2014US20140069658 Floating Structure and Riser Systems for Drilling and Production
03/12/2014CN203476289U Suspension type oil and water recovery device
03/12/2014CN103635657A Downhole tool for determining laterals
03/11/2014CA2731973C Energy generator with oscillating membrane
03/06/2014WO2014035397A1 Variable-output generator for downhole power production
03/06/2014WO2014035255A1 Seal retainer device
03/06/2014US20140064854 Waste water disposal system
03/06/2014US20140060847 Device for Operations in Proximity of an Underwater Installation
03/05/2014EP2702241A2 Flow-induced electrostatic power generator for downhole use in oil and gas wells
03/05/2014EP2702240A1 Downhole cleaning system
03/05/2014EP2702230A2 Cycling device
03/05/2014CN203463079U Suspension arm anti-touch device for drilling rig
03/05/2014CN203463078U Locating locking mechanism on mounting tool for underwater horizontal manifold connector
03/05/2014CN203463077U Explosion proof type coupling guard for solid control equipment
03/05/2014CN203463076U Oil mist lubricating oil box structure with support function
03/05/2014CN103620159A Subsea electric actuators and latches for them
03/04/2014US8665110 Transmitting electric power into a bore hole
02/2014
02/28/2014CA2788310A1 Device for reducing rod string backspin in progressive cavity pump
02/27/2014WO2014031123A1 Methods for retrieval and replacement of subsea production and processing equipment
02/27/2014WO2014031122A1 Retrieval of subsea production and processing equipment
02/27/2014WO2013055691A3 Method for real-time monitoring and transmitting hydraulic fracture seismic events to surface using the pilot hole of the treatment well as the monitoring well
02/27/2014US20140054043 Resilient Foam Debris Barrier
02/27/2014US20140054027 Coarse hard-metal particle internal injection torch and associated compositions, systems, and methods
02/27/2014CA2821558A1 Centre for the preparation of additives for hydraulic fracturing operations and hydraulic fracturing process employing the preparation centre
02/27/2014CA2787791A1 Water management system and method
02/26/2014CN203452736U Cement foundation pier type fixing frame for gas drilling clearance pipeline
02/26/2014CN203452735U Drilling machine carriage pressing column anti-toppling device
02/26/2014CN103603632A Underwater basal disc connecting floating production system and subsea pipeline
02/20/2014WO2014027178A2 Apparatus and methods for use with drilling fluids
02/20/2014WO2013066990A3 Tubular catcher system and method
02/20/2014US20140048285 System and Method for Downhole Electrical Transmission
02/20/2014US20140048253 High output, radial engine-powered, road-transportable apparatus used in on-site oil and gas operations
02/19/2014CN203441438U Seabed cable fixing sledge
02/19/2014CN103590786A Breakage-preventive safety device of drilling and workover rig and application method of breakage-preventive safety device
02/15/2014CA2823726A1 High output, radial engine-powered, road-transportable apparatus used in on-site oil and gas operations
02/13/2014WO2014025645A1 Wellbore servicing system and methods of use
02/13/2014WO2013110979A3 Intermediate storage
02/13/2014US20140041860 Systems and methods for modeling and triggering safety barriers
02/13/2014US20140041859 Reversible ported sub assembly
02/13/2014US20140041322 System and method for delivery of oilfield materials
02/12/2014CN203430501U Combined drilling tool capable of measuring inclination through opened hole
02/12/2014CN103573218A Intervention workover control system
02/12/2014CN103573217A Anti-freezing device of gas circuit
02/12/2014CN103573216A Automatic dosing device of mechanical wellhead of sucker rod pump pumping well
02/11/2014CA2686627C Electrically sequenced tractor
02/06/2014US20140039796 Method and System for Passive Electroseismic Surveying
02/06/2014US20140034331 Fluid Mixture for Softening a Downhole Device
02/06/2014US20140034298 Remote Activated Deflector
02/06/2014DE102012015153A1 Method for supplying carbon dioxide to drilling platform used for e.g. exploration of crude oil in see during oil and gas production, involves providing resource-line serving for supplying resource, in pipeline of platform
02/05/2014CN103556972A Self-installed ocean floor drilling template and installation method thereof
01/2014
01/31/2014CA2820966A1 Power and control pod for a subsea artificial lift system
01/30/2014US20140027123 Intervention workover control systems
01/30/2014US20140027119 In situ recovery from a hydrocarbon containing formation
01/29/2014CN203412550U Multifunctional working platform
01/29/2014CN203412549U Operating room
01/29/2014CN101849082B Gravel packing methods
01/23/2014WO2013055677A3 System for real-time monitoring and transmitting hydraulic fracture seismic events to surface using the pilot hole of the treatment well as the monitoring well
01/23/2014WO2013049495A3 System, apparatus, and method for utilization of bracelet galvanic anodes to protect subterranean well casing sections shielded by cement at a cellar area
01/23/2014US20140020886 Thermally Conductive Filler Suspended by Thixotropic Agents in Lubricant Oil
01/22/2014CN203403864U Dual-purpose support capable of being fixed in pre-assembled mode and moved
01/22/2014CN203403863U Multilateral well reentry tool capable of rotating
01/22/2014CN103534438A Apparatus for a fluid transport pipeline, related method and system
01/22/2014CN103527147A Injection hoisting system
01/22/2014CN103527146A Screw pump liquid draining well mouth operating platform used on floating type drilling platform
01/21/2014CA2486775C Modeling, simulation and comparison of models for wormhole formation during matrix stimulation of carbonates
01/20/2014CA2821548A1 Systems and methods for the storage and disposal of waste cement
01/16/2014WO2014011175A1 Downhole power generation using hydraulic flow regulation
01/16/2014US20140019108 Method for exploiting a geological reservoir from a reservoir model matched by the computation of an analytical law of conditional distribution of uncertain parameters of the model
01/15/2014EP2683937A2 Systems and methods to harvest fluid energy in a wellbore using preloaded magnetostrictive elements
01/15/2014EP2683849A1 Quaternary ammonium composition for inhibiting corrosion
01/15/2014CN203394443U Pumping unit well mouth packing adding and extracting device
01/15/2014CN203394442U Adjustable operation platform surrounding well mouth
01/15/2014CN203394441U Automatic water drainage device for pneumatic control system of drilling machine
01/15/2014CN203394440U Vehicle-borne skid-mounted intelligent oil well chemical dosing device
01/15/2014CN103518032A Functionally gradient composite article
01/09/2014US20140008081 Tubular Connection
01/08/2014EP2682689A1 Generation of electrical energy from geothermal energy
01/08/2014EP2682562A1 Systems and methods for monitoring a wellbore and actuating a downhole device
01/08/2014EP2681411A2 Designed drilling fluids for ecd management and exceptional fluid performance
01/08/2014CN203383787U Diving buoyancy barrel
01/08/2014CN203383786U Closed-loop water distribution, ground watering and pressurization output integrated device
01/08/2014CN103502566A Downhole cleaning system
01/08/2014CN103502563A Method of making and using a functionally gradient composite tool
01/08/2014CN103498639A Portable well head device and using method
01/03/2014WO2014003572A1 Light weight guidepost
01/03/2014WO2014000777A1 Remote and manually actuated well tool
01/03/2014CA2877309A1 Remote and manually actuated well tool
01/02/2014US20140000871 Porous Medium Screen
01/01/2014EP2679766A2 Apparatus and method for operating a subsea compression system in a well stream
01/01/2014EP2678840A1 Safety barrier alert
01/01/2014EP2678522A2 Method of introducing treatment agents into a well or flow conduit
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