| 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) |
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| 04/30/2013 | CA2582275C Self-cleaning well control fluid |
| 04/30/2013 | CA2509649C Single fluid acidizing treatment |
| 04/30/2013 | CA2436085C Method and system for accessing a subterranean zone from a limited surface area |
| 04/28/2013 | CA2756389A1 Improving recovery from a hydrocarbon reservoir |
| 04/27/2013 | CA2793548A1 System and method of improved fluid production from gaseous wells |
| 04/27/2013 | CA2791670A1 Well treatment agents coated with alternating layers of polyionic materials and methods of using the same |
| 04/27/2013 | CA2791650A1 Artificial lift system for well production |
| 04/25/2013 | WO2013059793A1 Porous proppants |
| 04/25/2013 | WO2013059607A1 Monobore expansion system - anchored liner |
| 04/25/2013 | WO2013059430A1 Subsea pressure reduction system |
| 04/25/2013 | WO2013059251A1 Venting system and method to reduce adiabatic heating of pressure control equipment |
| 04/25/2013 | WO2013059058A1 Low dosage kinetic hydrate inhibitors for natural gas production systems |
| 04/25/2013 | WO2013059013A2 Method for hydrocarbon recovery using heated liquid water injection with rf heating |
| 04/25/2013 | WO2013058972A1 Control systems and methods for subsea activities |
| 04/25/2013 | WO2013058859A2 Explosive pellet |
| 04/25/2013 | WO2013058822A1 Methods and systems for providing steam |
| 04/25/2013 | WO2013057445A1 Method for installing a self-supporting tower for extracting hydrocarbons |
| 04/25/2013 | WO2013056732A1 Improved process for the conversion of natural gas to hydrocarbons |
| 04/25/2013 | WO2013056719A1 Subsea production system with multiple location master control station system |
| 04/25/2013 | WO2013056342A1 Steam assisted gravity drainage processes with the addition of oxygen addition |
| 04/25/2013 | WO2013033542A3 Degradable shaped charge and perforating gun system |
| 04/25/2013 | WO2013033537A3 Method of using a degradable shaped charge and perforating gun system |
| 04/25/2013 | WO2013033535A3 Degradable high shock impedance material |
| 04/25/2013 | WO2013030555A3 Determining perforation orientation |
| 04/25/2013 | WO2013025985A3 Full flow gun system for monobore completions |
| 04/25/2013 | WO2013022648A3 Electrolytic composition for degrading polymeric filter cake |
| 04/25/2013 | WO2013022639A3 Permeable material compacting method and apparatus |
| 04/25/2013 | WO2013022635A3 Method of controlling corrosion rate in downhole article, and downhole article having controlled corrosion rate |
| 04/25/2013 | WO2013022627A3 Method of fracturing multiple zones within a well |
| 04/25/2013 | WO2012177442A3 Coatings for welbore tools, components having such coatings, and related methods |
| 04/25/2013 | WO2012173948A3 Additives for improving hydrocarbon recovery |
| 04/25/2013 | WO2012170770A3 Self clamping shaker screens |
| 04/25/2013 | WO2012148956A3 Flange overshot retrieval tool |
| 04/25/2013 | WO2012148955A3 Flange separation and retrieval tool |
| 04/25/2013 | WO2012143666A3 System and method for improved propped fracture geometry for high permeability reservoirs |
| 04/25/2013 | WO2012134705A3 Single trip liner setting and drilling assembly |
| 04/25/2013 | WO2012088013A3 Cyclonic separators and methods for separating particulate matter and solids from well fluids |
| 04/25/2013 | WO2012087541A3 Modular fracture plug and method of construction thereof |
| 04/25/2013 | WO2012040220A3 Signal operated isolation valve |
| 04/25/2013 | WO2012034984A3 Stable subsea electric power transmission to run subsea high speed motors |
| 04/25/2013 | WO2011146949A3 Mating unit enabling the deployment of a modular electrically driven device in a well |
| 04/25/2013 | US20130098798 Pipe transport system |
| 04/25/2013 | US20130098681 Combined fracturing and perforating method and device for oil and gas well |
| 04/25/2013 | US20130098634 Monobore expansion system - anchored liner |
| 04/25/2013 | US20130098629 Method and apparatus for removing liquid from a horizontal well |
| 04/25/2013 | US20130098622 Downhole polymer foam applications |
| 04/25/2013 | US20130098621 Fracturing system |
| 04/25/2013 | US20130098619 Split stream oilfield pumping systems |
| 04/25/2013 | US20130098618 Hydrophobically modified polymer for thermally stabilizing fracturing fluids |
| 04/25/2013 | US20130098617 Wellbore Perforation Tool |
| 04/25/2013 | US20130098616 Flow isolation sub for tubing operated differential pressure firing head |
| 04/25/2013 | US20130098615 Novel high density brines for completion applications |
| 04/25/2013 | US20130098614 Varying pore size in a well screen |
| 04/25/2013 | US20130098613 Geothermal well diversion agent formed from in situ decomposition of carbonyls at high temperature |
| 04/25/2013 | US20130098611 Alkaline persulfate for low-temperature breaking of polymer viscosified fluid |
| 04/25/2013 | US20130098610 Method for hydrocarbon recovery using heated liquid water injection with rf heating |
| 04/25/2013 | US20130098609 Use of tris(2-hydroxyphenyl)methane derivatives for tertiary mineral oil production |
| 04/25/2013 | US20130098608 Temporary field storage of gas to optimize field development |
| 04/25/2013 | US20130098607 Steam Flooding with Oxygen Injection, and Cyclic Steam Stimulation with Oxygen Injection |
| 04/25/2013 | US20130098605 Systems and methods for killing a well |
| 04/25/2013 | US20130098603 Steam Assisted Gravity Drainage Processes With The Addition of Oxygen Addition |
| 04/25/2013 | US20130098043 Hydrajetting Nozzle and Method |
| 04/25/2013 | CA2852973A1 Porous proppants |
| 04/25/2013 | CA2851782A1 Method for hydrocarbon recovery using heated liquid water injection with rf heating |
| 04/25/2013 | CA2843954A1 Explosive pellet |
| 04/25/2013 | CA2793644A1 System and method for fractionation of a well using a three dimensional wellbore profile with an executive dashborad |
| 04/24/2013 | EP2583051A1 High density powdered material liner |
| 04/24/2013 | EP2582911A2 Method of improving the production of a mature gas or oil field |
| 04/24/2013 | EP2582910A1 Systems and methods for isolating current flow to well loads |
| 04/24/2013 | EP2582907A1 Method employing pressure transients in hydrocarbon recovery operations |
| 04/24/2013 | CN202904812U Computer control-based rod-pumped well belt breakage and detachment alarm |
| 04/24/2013 | CN202901157U Steel wire rope fixing mechanism of balancing weight basket |
| 04/24/2013 | CN202900241U Oil-gas-water three-phrase multifunctional detection device |
| 04/24/2013 | CN202900231U Pumping well outer circulation sand-prevention gas anchor |
| 04/24/2013 | CN202900230U Wellhead portable liquid trap |
| 04/24/2013 | CN202900229U Separating device |
| 04/24/2013 | CN202900228U Three phrase separator capable of automatically dewatering |
| 04/24/2013 | CN202900227U Gas and liquid separation device for oil well |
| 04/24/2013 | CN202900226U Blocking ball injection device for achieving multistage temporary blocking multi-crack fracturing technology |
| 04/24/2013 | CN202900225U A tubular column for a stage-unlimited intelligent well cementation sliding sleeve separate layer fracturing reconstruction technology |
| 04/24/2013 | CN202900224U Oil extraction device |
| 04/24/2013 | CN202900223U Underground low-frequency acoustic wave oil layer processing system |
| 04/24/2013 | CN202900222U Adjustable pressure even dryness layering steam distributing device |
| 04/24/2013 | CN202900221U Thickened oil steam huff and puff injection-extraction integrated device |
| 04/24/2013 | CN202900220U Novel lock claw type sleeve thermal stress compensator |
| 04/24/2013 | CN202900219U Polymer flooding eccentric injection allocation device |
| 04/24/2013 | CN202900218U Gas well mouth automatic medicine adding device |
| 04/24/2013 | CN202900217U Oil well steam and chemical agent companion injection device |
| 04/24/2013 | CN202900216U 配水器 Water distribution |
| 04/24/2013 | CN202900215U Single-flow type dual-guide bridge through eccentric water distribution working barrel |
| 04/24/2013 | CN202900214U Water injection distributed control system for offshore oil exploitation |
| 04/24/2013 | CN202900213U Three-section separate injection string for horizontal well water injection |
| 04/24/2013 | CN202900212U Open-free concentric adjustable water distributor |
| 04/24/2013 | CN202900211U Buffering type negative pressure injection stimulation percussion device |
| 04/24/2013 | CN202900210U Separated injection device |
| 04/24/2013 | CN202900209U Water-flow regulator |
| 04/24/2013 | CN202900208U Oil field separated layer water injection electronic control water distributor |
| 04/24/2013 | CN202900207U Linear motor drive device |
| 04/24/2013 | CN202900206U Steam distribution device with steam injection holes varied in distribution density |
| 04/24/2013 | CN202900205U Multifunctional formation testing well completion integral pipe column |