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)
03/2010
03/24/2010CN101680291A Systems and methods for reducing pump downtime by determining rotation speed using a variable speed drive
03/24/2010CN101680290A Hydrajet tool for ultra high erosive environment
03/24/2010CN101680289A Gravel packing screen with inflow control device and bypass
03/24/2010CN101680288A Polyelectrolyte complexes as delayed gelling agents for oil and gas applications
03/24/2010CN101680283A Method for casing using multiple expanded areas and using at least one inflatable bladder
03/24/2010CN101680282A Cladding method and expansion tool
03/24/2010CN101676516A High-gas-contained well multiphase mixed transportation processing equipment
03/24/2010CN100595542C Apparatus for testing load and acceleration
03/23/2010US7684929 Geometrical optimization of multi-well trajectories
03/23/2010US7683011 for plugging permeable zones; subterranean formations
03/23/2010US7681672 Cryogenic pulsejet and method of use
03/23/2010US7681647 Method of producing drive fluid in situ in tar sands formations
03/23/2010US7681644 Managing lost returns in a wellbore
03/23/2010US7681643 Treatment of brines for deep well injection
03/23/2010US7681641 Plunger lift controller and method
03/23/2010US7681640 Screen and method having a partial screen wrap
03/23/2010US7681639 Stimulate a vast area of the subterranean coal seams with a large area contact with the cleat system of the coal formation; performed at low injection pressures while maintaining an ecological environment that promotes the in-situ microbial degradation of hydrocarbons to methane gas
03/23/2010US7681638 Providing an aqueous bioslurry of microbes capable of degrading paraffin wax at a temperature of 20-45 degrees C., and a nutrient medium source to improve oil flow on wellbore tubing, surface wellheads, flow lines and well bore sumps; biofilms;Acinetobacter baumanil
03/23/2010US7681635 Methods of fracturing sensitive formations
03/23/2010CA2632442C Degradable material assisted diversion or isolation
03/23/2010CA2591158C Retrievable frac mandrel and well control stack to facilitate well completion, re-completion or workover and method of use
03/23/2010CA2581136C Gas separator
03/23/2010CA2563864C Expanding a tubular with a mounted sensor therein
03/23/2010CA2562168C Method and apparatus for running two tubing strings into a well
03/23/2010CA2537779C Subsea compression system and method
03/23/2010CA2492895C Method for completing injection wells
03/23/2010CA2465176C Remedial system to flush contaminants from tubing string
03/23/2010CA2448085C Radially expandable tubular with supported end portion
03/23/2010CA2332685C Field upgrading of heavy oil and bitumen
03/22/2010CA2679812A1 Wellsite surface equipment systems
03/22/2010CA2679148A1 Enhanced crude oil recovery method and system
03/18/2010WO2010030423A1 Control of well tools utilizing downhole pumps
03/18/2010WO2010030275A1 Nitrogen-free invert emulsion wellbore fluid
03/18/2010WO2010030274A2 Invert emulsion wellbore fluids and method for reducing toxicity thereof
03/18/2010WO2010030266A1 Remote actuation of downhole well tools
03/18/2010WO2010030263A1 Harvesting hydrocarbons from coal, shale, peat and landfill seams
03/18/2010WO2010030160A1 A offshore seabed to surface conduit transfer system
03/18/2010WO2010028917A1 Method for extracting bitumen and/or ultra-heavy oil from an underground deposit, associated installation and operating method for said installation
03/18/2010WO2010028507A1 Method and apparatus for underground oil extraction
03/18/2010WO2010005632A3 Flow control in a well bore
03/18/2010WO2009150548A3 Low interfacial tension surfactants for petroleum applications
03/18/2010WO2009147040A3 Assembly for use in a christmas tree
03/18/2010WO2009113875A3 Bellows valve
03/18/2010WO2008151052A3 Completion method for fracturing and gravel packing
03/18/2010US20100065280 Gas restrictor for horizontally oriented pump
03/18/2010US20100065279 Blower assembly
03/18/2010US20100065278 Scaled Plots of Electromagnetic Data
03/18/2010US20100065277 Stabplate Connections
03/18/2010US20100065276 Method and apparatus for wellbore fluid treatment
03/18/2010US20100065274 System and Method for Performing Multiple Downhole Operations
03/18/2010US20100065271 Low temperature coated particles for use as proppants or in gravel packs, methods for making and using the same
03/18/2010US20100065269 Method of stabilizing a well bore of a well penetrating a subterranean formation
03/18/2010US20100065268 In situ heavy oil and bitumen recovery process
03/18/2010US20100065267 Apparatus for Separating a Mixture of Liquids of Differing Specific Gravities in a Wellbore
03/18/2010US20100065266 Method for Controlled Source Electromagnetic Reconnaissance Surveying
03/18/2010US20100065265 Method and apparatus for in-situ radiofrequency assisted gravity drainage of oil (ragd)
03/18/2010CA2774095A1 Method and apparatus for underground oil extraction
03/18/2010CA2737083A1 Method for extracting bitumen and/or extra-heavy oil from an underground deposit, associated installation and operating method for said installation
03/18/2010CA2736730A1 Nitrogen-free invert emulsion wellbore fluid
03/18/2010CA2736728A1 Invert emulsion wellbore fluids and method for reducing toxicity thereof
03/18/2010CA2735261A1 Control of well tools utilizing downhole pumps
03/17/2010EP2162595A1 Chemical amendments for the stimulation of biogenic gas generation in deposits of carbonaceous material
03/17/2010EP2162594A1 Device, method and program product to automatically detect and break gas locks in an esp
03/17/2010EP2162593A1 Methods of laying elongate articles at sea
03/17/2010CN201425086Y Easy-disassembled motor pulley
03/17/2010CN201425018Y Pipe column drainage pump for oil well
03/17/2010CN201425017Y Energy-saving plunger pump
03/17/2010CN201424938Y Double-packer hydraulic-jet fracturing pipe
03/17/2010CN201424937Y Medicament adding and crude oil pour point depressing device
03/17/2010CN201424936Y Perforating bullet with independent detonation transmission part
03/17/2010CN201424935Y Petroleum perforating and fracturing bullet
03/17/2010CN101675212A Improved system and method for stimulating multiple production zones in a wellbore
03/17/2010CN101675211A Methods for development of an offshore oil and gas field
03/17/2010CN101675143A Control of particulate entrainment by fluids
03/17/2010CN101675142A Aqueous particulate slurry compositions and methods of making same
03/17/2010CN101675141A Treatment fluids comprising diutan and associated methods
03/17/2010CN101673093A Intelligent variable frequency control system of oil extractor
03/17/2010CN101672272A Gas and sand anchor device of electrical submersible pump
03/17/2010CN101672179A Intelligent synchronous testing and adjusting method capable of simultaneously infusing, testing and regulating
03/17/2010CN101672177A Exploitation method for sea bed gas hydrate
03/17/2010CN101672176A Deepwater underwater oil-storage petroleum production device
03/17/2010CN101672175A Deepwater underwater oil-storage petroleum production device with a dynamic positioning buoy
03/17/2010CN101672174A Energy-saving uninterrupted non-rod oil pumping device
03/17/2010CN101672173A Dual horsehead fine balance energy-saving walking beam pumping unit
03/17/2010CN101671553A Self-gas-production solid-foam liquor drainage ball of watered gas well
03/17/2010CN100594289C Apparatus and method for measuring proppant insert depth
03/17/2010CN100594288C Oil pool development simulation system, upper pressure covering system and data processing method
03/17/2010CN100594287C In-situ hydrogen treatment method of to heated hydrocarbon containing fluid
03/16/2010US7678281 Mixing the brine containing metal impurities with an organic chelant for a time sufficient for the chelant to complex a metal and form a complexed metal precipitate; removing complexed metal precipitate from brine wherein the metal impurities contain iron
03/16/2010US7677673 Stimulation and recovery of heavy hydrocarbon fluids
03/16/2010US7677322 System and method for a low drag flotation system
03/16/2010US7677321 Expandable tubulars for use in geologic structures, methods for expanding tubulars, and methods of manufacturing expandable tubulars
03/16/2010US7677320 Subsea well with electrical submersible pump above downhole safety valve
03/16/2010US7677317 Liquid carbon dioxide cleaning of wellbores and near-wellbore areas using high precision stimulation
03/16/2010US7677316 Localized fracturing system and method
03/16/2010US7677315 Degradable surfactants and methods for use
03/16/2010US7677314 Method of condensing vaporized water in situ to treat tar sands formations
03/16/2010US7677312 Degradable cement compositions containing degrading materials and methods of cementing in wellbores
03/16/2010US7677311 Internal breaker for oilfield treatments
03/16/2010US7677310 Creating and maintaining a gas cap in tar sands formations
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