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 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
Patents for E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells (64,186)
03/2014
03/11/2014CA2632526C Method of oil recovery using a foamy oil-external emulsion
03/11/2014CA2626752C A well fluid separator tank for separation of fluid comprising water, oil and gas, use of such a tank, and a method for separating a well fluid including water, oil, and gas
03/10/2014CA2825325A1 Cased hole chemical perforator
03/06/2014WO2014035863A1 Electrostatic particulate coating methods and apparatus for fracturing fluids
03/06/2014WO2014035861A1 Controllably tuning properties of a fluid using modified nanoparticles
03/06/2014WO2014035858A1 Controlled electrolytic metallic materials for wellbore sealing and strengthening
03/06/2014WO2014035788A1 In situ combustion for steam recovery infill
03/06/2014WO2014035551A1 Determining surface wetting of rock with changing well fluids
03/06/2014WO2014035500A1 Fluorous additives for use in a fluorous-based treatment fluid
03/06/2014WO2014035383A1 A reclosable sleeve assembly and methods for isolating hydrocarbon production
03/06/2014WO2014034202A1 Multiplex pipe and system for recovering steam from geothermal wells
03/06/2014WO2014007864A3 Energy transfer device
03/06/2014WO2013103789A3 Gravel pack inner string hydraulic locating device
03/06/2014WO2013103787A3 Gravel pack bypass assembly
03/06/2014US20140060846 Downhole casing system
03/06/2014US20140060843 Wellbore Servicing Compositions and Methods of Making and Using Same
03/06/2014US20140060842 Electrostatic particulate coating methods and apparatus for fracturing fluids
03/06/2014US20140060841 Fluorous additives for use in a fluorous-based treatment fluid
03/06/2014US20140060839 Fracturing a well formation
03/06/2014US20140060838 Downhole Robotic Micro-Drilling System
03/06/2014US20140060837 Method and apparatus for treating a well
03/06/2014US20140060833 Process for the production of coated proppants
03/06/2014US20140060832 Self-suspending proppants for hydraulic fracturing
03/06/2014US20140060831 Well treatment methods and systems
03/06/2014US20140060830 Method and Apparatus for Treating a Well
03/06/2014US20140060829 Methods for Forming Highly Conductive Propped Fractures
03/06/2014US20140060828 Methods for Hindering Settling of Proppant Aggregates in Subterranean Operations
03/06/2014US20140060827 Methods of Hindering the Settling of Proppant Aggregates
03/06/2014US20140060826 Methods of Forming Pillars and Channels in Propped Fractures
03/06/2014US20140060825 Direct steam generation co2 output control
03/06/2014US20140060823 In situ combustion for steam recovery infill
03/06/2014US20140060816 Multiple Sectioned Wire-Wrapped Screens
03/06/2014US20140060814 Pulse fracturing device and method
03/06/2014US20140060802 Method and apparatus for delivering high power laser energy over long distances
03/06/2014US20140060800 Enhancing well fluid recovery
03/06/2014US20140060678 Method and system for recovering, and displacing fluid from, a pipe
03/06/2014US20140060295 Structure for gunpowder charge in multi-frac composite perforating devices
03/05/2014EP2703598A1 Centre for the preparation of additives for hydraulic fracturing operations and hydraulic fracturing process employing the preparation centre
03/05/2014EP2702247A2 Methods of employing and using a hybrid transponder system for long-range sensing and 3d localization
03/05/2014EP2702245A2 Hybrid transponder system for long-range sensing and 3d localization
03/05/2014EP2702244A2 Reverse rotation protection for borehole pumps
03/05/2014EP2702243A2 Expandable filtering system for single packer systems
03/05/2014EP2702242A2 Subsea accumulator system
03/05/2014EP2702237A2 Load balancing spherical diameter single seat ball system
03/05/2014EP2702235A2 Casing relief valve
03/05/2014EP2702229A2 Expandable open-hole anchor
03/05/2014EP2702227A2 Expansion system for an expandable tubular assembly
03/05/2014EP2702116A1 Composites for controlled release of well treatment agents
03/05/2014EP2702115A1 Treatment fluids containing biodegradable chelating agents and methods for use thereof
03/05/2014CN203463265U Power-enhanced downhole hydraulic oil pumping system
03/05/2014CN203463094U Oil-water mixture heat pump heating device
03/05/2014CN203463093U Gas injection stereo well pattern structure for double medium storage layer
03/05/2014CN203463092U Novel manifold truck/pry with self-pressurization perfusion function for industrial large-scale fracturing
03/05/2014CN203463091U Equipment for using waste steam in thickened oil thermal recovery
03/05/2014CN203463090U Experiment device for simulating effects of polymer on storage layer sand generating and preventing results and sand filling model thereof
03/05/2014CN203463089U Efficient anti-blocking oil nozzle
03/05/2014CN203463088U Wedge-shaped sieve tube
03/05/2014CN203463087U Shaft simulation device for multilateral-guide moderate sand control well
03/05/2014CN203463086U Novel petroleum slotted sieve tube with composite chamber
03/05/2014CN203463085U Sand filling tool capable of opening and closing filling channel quickly
03/05/2014CN203463084U Direct-drive permanent-magnet synchronous motor oil pumping system
03/05/2014CN203463083U Gas balance assembly of gas balance pumping unit
03/05/2014CN203463082U Adjusting guardrail of horse head hanging disc of pumping unit
03/05/2014CN203463081U Safety guardrail for maintenance of tail bearing of beam-pumping unit
03/05/2014CN203463080U Digital energy-saving vertical-type oil pumping unit
03/05/2014CN203463074U Mechanical sliding sleeve switch tool
03/05/2014CN203463073U Sleeve pipe slide sleeve capable of being repeatedly opened and closed
03/05/2014CN203463072U Novel inner ball valve tool
03/05/2014CN203463069U Mechanical hydraulic type switchable fracturing slide sleeve
03/05/2014CN103620160A Electromagnetic depth/orientation detection tool and methods thereof
03/05/2014CN103620156A An annular barrier with external seal
03/05/2014CN103616349A Reflectivity measurement device and online dryness measurement method based on same
03/05/2014CN103615231A Synchronous on-line measurement device for steam-injection type oil well temperature, pressure and steam quality
03/05/2014CN103615229A Well test belt pressing dust catcher
03/05/2014CN103615228A Temporary plugging and fracturing process in degradable fiber clearance
03/05/2014CN103615227A Two-stage differential pressure sliding sleeve
03/05/2014CN103615226A Drilling and fracturing method by hydraulic jetting
03/05/2014CN103615225A Mid-depth layer oil reservoir double-horizontal-well equal-temperature-difference forced steam circulation preheating method
03/05/2014CN103615224A Method and well network structure for improving steam assisted gravity drainage for extracting heavy oil reservoirs by aid of solvents
03/05/2014CN103615223A Concentric water distributor and slimhole ground adjustable layered injection string
03/05/2014CN103615222A Guide component used for pumping unit balancing weight
03/05/2014CN103615221A Energy-saving pumping unit
03/05/2014CN103615220A Dual-chain drive pumping unit
03/05/2014CN103615219A Novel double-chain pumping unit
03/05/2014CN103615218A Novel double-chain pumping unit reversing mechanism
03/05/2014CN103615217A Direct-driven beam pumping unit with magnetic coupling low-speed motor
03/05/2014CN103615216A Low-yield well numerically controlled oil pipe oil bailing device and oil bailing method
03/05/2014CN103615215A Side and bottom water layer thermal recovery method allowing electrically heating oil deposit in horizontal well
03/05/2014CN103615214A Cavity-shell type reverse circulation valve
03/05/2014CN103615199A Oil extraction processing device for achieving steam injection, oil extraction and temperature-pressure real-time monitoring in shaft of horizontal well with three tubes
03/05/2014CN103614631A Rare earth-containing body of perforating gun and preparation method thereof
03/05/2014CN102373913B High-efficiency anti-magnesium ion oil displacement method
03/05/2014CN102116149B Round-table-barrel-shaped near-well-bore shear simulating device with three layers of compaction sand bodies
03/05/2014CN102094608B Automatic water power pressure adjustment system
03/05/2014CN102094607B Equipment and method for injecting water into high and low pressure wells
03/05/2014CN102027191B Downhole valve for preventing zonal cross-flow
03/05/2014CN101775977B Dual-tube injection well safety production string
03/05/2014CN101761325B Method for measuring three-phase flow rate of producing wellhead oil transportation pipeline and daily fluid production rate of single well
03/05/2014CN101397901B Logging while producing apparatus and method
03/04/2014US8665110 Transmitting electric power into a bore hole
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