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 37 - Methods or apparatus for cleaning boreholes or wells
Patents for E21B 37 - Methods or apparatus for cleaning boreholes or wells (5,129)
11/2010
11/25/2010WO2010135245A2 Intelligent debris removal tool
11/25/2010WO2010135115A2 Dissolvable downhole tool, method of making and using
11/25/2010WO2010089725A3 System and method for well clean-up
11/25/2010US20100294501 Process for the preparation of an organic composition comprising an n-nonyl ester
11/25/2010CA2762070A1 Dissolvable downhole tool, method of making and using
11/24/2010EP1434980B1 Real-time on-line sensing and control of mineral scale deposition from formation fluids
11/24/2010CN201650221U Pumping unit of blowout control pipe of flowing well
11/24/2010CN201650220U Soaking and hot washing device of oil pumping rod
11/24/2010CN201650219U Christmas tree cleaning device
11/24/2010CN201650218U Washing and sand discharge device for horizontal well annulus
11/24/2010CN201650216U Multipurpose paraffin removing heater for back-burning oil field
11/24/2010CN101896688A Method for wax removal and measurement of wax thickness
11/23/2010US7836947 Cleaning device for downhole tools
11/23/2010CA2486177C Tubular goods and liners
11/18/2010WO2007093771A8 Downhole assembly and cutter assembly
11/18/2010US20100288501 Electric submersible pumping system for dewatering gas wells
11/18/2010US20100288492 Intelligent Debris Removal Tool
11/18/2010DE102009018383A1 Vorrichtung zum Aktivieren oder Reinigen von Brunnen Means for activating or cleaning of wells
11/16/2010US7833946 Water-based drilling fluid
11/04/2010US20100276143 Method and device for cleaning and sealing a well
11/03/2010EP2246408A2 Method and composition for the triggered release of polymer-degrading agents for oil field use
11/03/2010CN201620825U Diameter-variable pump rod scraper
11/03/2010CN201620824U Oil pipe ground wax-removal recycling device
10/2010
10/28/2010WO2010123963A2 Utilizing electromagnetic radiation to activate filtercake breakers downhole
10/28/2010US20100274546 Methods and systems of planning a procedure for cleaning a wellbore
10/27/2010CN201614915U 油田井下管类防堵装置 Downhole Tubing attempts to prevent the device
10/27/2010CN201614914U 油井检修用原油回收器 Overhaul with crude oil recycler
10/27/2010CN201614913U 油田井下变频电磁防垢防蜡仪 Downhole electromagnetic frequency meter scale wax
10/26/2010CA2603744C Water based completion and displacement fluid and method of use
10/21/2010WO2010120466A2 Slickline conveyed bottom hole assembly with tractor
10/21/2010WO2010120463A1 Slickline conveyed shifting tool system
10/21/2010WO2010120455A1 Slickline conveyed tubular cutter system
10/21/2010WO2010120454A1 Slickline conveyed debris management system
10/21/2010WO2010120453A2 Slickline conveyed tubular scraper system
10/21/2010WO2010120180A1 Device for a downhole apparatus for machining of casings and also a method of depositing machined shavings
10/21/2010WO2010097616A3 Diverter cup assembly
10/21/2010WO2010094911A3 Fluid injection apparatus and method
10/21/2010US20100263875 Drilling systems for cleaning wellbores, bits for wellbore cleaning, methods of forming such bits, and methods of cleaning wellbores using such bits
10/21/2010US20100263867 Utilizing electromagnetic radiation to activate filtercake breakers downhole
10/21/2010CA2758788A1 Slickline conveyed bottom hole assembly with tractor
10/21/2010CA2758583A1 Slickline conveyed shifting tool system
10/21/2010CA2758495A1 Slickline conveyed debris management system
10/21/2010CA2758493A1 Slickline conveyed tubular scraper system
10/21/2010CA2758448A1 Device for a downhole apparatus for machining of casings and also a method of depositing machined shavings
10/21/2010CA2758443A1 Slickline conveyed tubular cutter system
10/20/2010CN201610749U 油田注水井变频电磁增注装置 Frequency electromagnetic field injection wells augmented injection device
10/20/2010CN201610743U 地面液体点滴加药装置 Ground liquid drip dosing device
10/20/2010CN201610742U 水利机械清管器 Water Machinery pigging
10/20/2010CN201610741U 一种抽油杆井筒内清蜡装置 One kind of sucker rod wax device within the wellbore
10/20/2010CN201610731U 套铣打捞一体化控制工具 Washover salvage integrated control tools
10/20/2010CN101864928A Scraped oil collector of oil pumping rod
10/20/2010CN101864927A Paraffin scraping and collar detecting device of oil pumping rod
10/20/2010CN101864909A Centering striking-off oil-pumping rod
10/20/2010CN101864904A Operation device for stripping sucker rod at pressure
10/19/2010CA2463276C Real-time on-line sensing and control of mineral scale deposition from formation fluids
10/19/2010CA2391447C A method for recovering water soluble surfactants
10/14/2010WO2010060403A3 Device and method for activating or purifying wells with filter tubes
10/14/2010US20100258318 Downhole scraper
10/14/2010US20100258299 Well cleaning apparatus
10/14/2010US20100258298 Slickline Conveyed Tubular Scraper System
10/14/2010CA2757459A1 Interference-fit stop collar and method of positioning a device on a tubular
10/13/2010CN201606042U 多功能强磁防垢除蜡增油装置 Multifunctional magnetic scale wax means of increasing oil
10/13/2010CN201606037U 油管清洗高速旋转除垢刀杆 Tubing cleaning high-speed rotating cleaning Arbor
10/13/2010CN201606036U 油管清洗内除垢钢刷刮刀组件 Steel tubing cleaning cleaning brush blade assembly
10/13/2010CN101858205A Device for removing paraffin and washing well by gas heat carrier
10/12/2010US7810573 Method for retrofitting a downhole drill string with a flow through subassembly and method for making same
10/12/2010US7810559 Wellbore consolidating tool for rotary drilling applications
10/06/2010CN201599018U 多功能增油装置 Multifunction devices increasing oil
09/2010
09/30/2010WO2010111226A2 A composition and method for inhibiting agglomeration of hydrates in pipelines
09/30/2010WO2010110676A2 Subsea cooler and method for cleaning the subsea cooler
09/30/2010WO2010110674A2 Subsea system with subsea cooler and method for cleaning the subsea cooler
09/30/2010US20100243258 Debris catcher for collecting well debris
09/30/2010US20100243257 Expandable mill and methods of use
09/29/2010EP2232003A2 Breaker fluids and methods of using the same
09/29/2010CN101023242B Scale inhibition method
09/28/2010CA2594015C Apparatus and methods to remove impurities at a sensor in a downhole tool
09/26/2010CA2697703A1 Debris catcher for collecting well debris
09/26/2010CA2661382A1 Expandable mill and methods of use
09/23/2010US20100236787 Well Release System and Method
09/22/2010CN101250994B Oil well sand-pumping system as well as sand-pumping method thereof
09/22/2010CN101250992B Oil well sand-pumping device as well as sand-pumping method thereof
09/22/2010CN101250991B Oil well horizontal sand-pumping device as well as sand-pumping method thereof
09/21/2010CA2504302C Sand plunger
09/16/2010US20100230110 Well unloading package
09/16/2010US20100230108 Methods of Degrading Subterranean Filter Cakes
09/16/2010US20100230107 Jet pump for use with a multi-string tubing system and method of using the same for well clean out and testing
09/15/2010CN201581880U Micro-computer numerical control medicine feeding device
09/15/2010CN201581867U Paraffin cutting and sand washing drifting device
09/15/2010CN201581866U Sand-controlling well washer
09/15/2010CN201581865U Adjustable quick connecting tool for well cleanout
09/15/2010CN201581864U Well cleaning pressure device
09/15/2010CN201581841U Internal casing-scraping tool for multi-lateral well casings
09/08/2010EP2225438A1 Method for removing hydrate plug from a flowline
09/08/2010CN201574729U Paraffin-removal rod of electric heating oil pipe
09/08/2010CN201574727U Anti-prevention device for hot wash of oil wells
09/08/2010CN101824975A Method for removing oil from oil tube
09/08/2010CN101824971A Pumping-assisting centering dropout prevention device of pumping rod
09/07/2010US7789154 Eductor jet bushing for downhole use
09/01/2010CN101821475A Method, apparatus, and magnet for magnetically treating fluids
08/2010
08/31/2010US7786049 boring well bores using mixtures of water, nanoparticles comprising polyvinyl pyrrolidone or rubber latex, and optionally salts, antifoams, biocides,corrosion inhibitors, dispersants, flocculants,scavengers, lubricants, scavengers, antiscaling or flow control agents
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