| 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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| 09/24/2008 | CN101270277A Horizontal well segmenting perforating compression fracture technique and rubber plug of self-breaking glue solution bung |
| 09/24/2008 | CN100420907C Method for poducing, transporting, offloading, storing and distributing natural gas to marketplace |
| 09/24/2008 | CN100420855C Double-bridge oil-well pump |
| 09/24/2008 | CN100420824C Underground coal gasification |
| 09/24/2008 | CN100420823C Pipeline sealing emptying transfusion device |
| 09/23/2008 | US7426963 Piggable flowline-riser system |
| 09/23/2008 | US7426962 Flow control device for an injection pipe string |
| 09/23/2008 | US7426961 introducing into a well a suspension of porous particle in a carrier fluids, that forms a pack of particle that is permeable to fluids produced from the well bore and prevents or reduces production of formation materials from the formation into the well bore; well completion |
| 09/23/2008 | US7426960 Biogenic fuel gas generation in geologic hydrocarbon deposits |
| 09/23/2008 | US7426959 Systems and methods for producing oil and/or gas |
| 09/23/2008 | CA2626861A1 Method and apparatus for isolating a wellhead for fracturing |
| 09/23/2008 | CA2525704C Methods and compositions for placing particulate materials in subterranean zones |
| 09/23/2008 | CA2514967C Alternative method to cementing casing and liners |
| 09/23/2008 | CA2481913C Apparatus and method for treating the borehole wall and expanding a screen |
| 09/23/2008 | CA2480000C Bore-lining tubing |
| 09/23/2008 | CA2469361C Tubing expansion |
| 09/23/2008 | CA2441272C Method for developing a hydrocarbon reservoir (variants) and complex for carrying out said method (variants) |
| 09/23/2008 | CA2409277C Wellbores utilizing fiber optic-based sensors and operating devices |
| 09/23/2008 | CA2391584C Method for expanding a tubular element in a wellbore |
| 09/23/2008 | CA2390277C Method and apparatus for seismic stimulation of fluid-bearing formations |
| 09/23/2008 | CA2368885C Method for annular sealing |
| 09/23/2008 | CA2365966C Method of creating a wellbore in an underground formation |
| 09/23/2008 | CA2292867C Rotary pump stabilizer |
| 09/18/2008 | WO2008112837A2 Hydraulic fracture initiation and propagation control in unconsolidated and weakly cemented sediments |
| 09/18/2008 | WO2008112751A1 Expansion enhancement device |
| 09/18/2008 | WO2008112697A1 Providing a removable electrical pump in a completion system |
| 09/18/2008 | WO2008112331A1 A unitized multi-gauge multi-circuit gauge cluster, system array and gauge carrier for permanent down-hole production tube monitoring |
| 09/18/2008 | WO2008112009A1 Polyelectrolyte complexes as delayed gelling agents for oil and gas applications |
| 09/18/2008 | WO2008057219A3 Methods and systems for gas well deliquification |
| 09/18/2008 | WO2005081803A3 Lubricant coating for expandable tubular members |
| 09/18/2008 | US20080223583 Free standing riser system and method of installing same |
| 09/18/2008 | US20080223582 Field Development with Centralised Power Generation Unit |
| 09/18/2008 | US20080223580 Completion Method for Well Cleanup and Zone Isolation |
| 09/18/2008 | US20080223576 Acrylate, methylacrylate polymerizable monomer; ammonium persulfate/N,N,N',N'-tetramethylethylene diamine redox initiator; dioctadecyldimethylammonium chloride antistatic agent; heat fluid system to decrease the risk of sparking and fire |
| 09/18/2008 | US20080223574 Spherical ceramic element; sintered base secured to a sintered layer; different coefficient of thermal expansion between base and layer; proppant facilitates removal of liquids, gases from geological formations; scouring, grinding, polishing, bed support in chemical reactor; heat transfer, filtration |
| 09/18/2008 | CA2684233A1 High strength ceramic elements and methods for making and using the same |
| 09/18/2008 | CA2680301A1 Polyelectrolyte complexes as delayed gelling agents for oil and gas applications |
| 09/17/2008 | EP1970527A2 Steel pipe with a filter zone for bore wells |
| 09/17/2008 | EP1969203A2 Apparatus for extraction of hydrocarbon fuels or contaminants using electrical energy and critical fluids |
| 09/17/2008 | EP1755821A4 Method and apparatus for sealing radially expanded joints |
| 09/17/2008 | EP1451442B1 Methods and compositions for sealing an expandable tubular in a wellbore |
| 09/17/2008 | CN201118522Y 智能控制器 Intelligent Controller |
| 09/17/2008 | CN201118511Y Intelligent energy-saving controller for immersed oil power pump |
| 09/17/2008 | CN201118342Y Center adjusting tool for portable oil drawer electromotor |
| 09/17/2008 | CN201118341Y Sliding track for disassembly free electromotor |
| 09/17/2008 | CN201116469Y Pre-separating sampler |
| 09/17/2008 | CN201116466Y Abrasion-proof nozzle tip |
| 09/17/2008 | CN201116465Y Horizontal open hole bottom filling, slurry replacing, acidifying well-washing device |
| 09/17/2008 | CN201116461Y Well head connecting device |
| 09/17/2008 | CN101268250A Method of producing a hydrocarbon stream from a subterranean zone |
| 09/17/2008 | CN101265868A Method and device for utilizing flow separated from oil gas water separator for integral generation |
| 09/17/2008 | CN101265803A Horizontal and uniform acid distribution integrated experimental device and its operation method |
| 09/17/2008 | CN101265802A Same well oil extraction gas injection system |
| 09/17/2008 | CN101265801A Oil gas well gas injection oil extraction gas production technological process |
| 09/17/2008 | CN101265800A Oil layer wax-condensing type oil reservoir mining method |
| 09/17/2008 | CN101265799A Inner protection sleeve possessing longitudinal rib |
| 09/17/2008 | CN101265798A Sieve tube free composite fracturing fibre sand prevention process |
| 09/17/2008 | CN101265797A Flow string possessing water controlling valve and longitudinal rib |
| 09/17/2008 | CN101265796A Same well dual-pumping process system |
| 09/17/2008 | CN101265795A Oil pumping machine |
| 09/17/2008 | CN101265794A Combination type ultralong stroke oil pumping machine |
| 09/17/2008 | CN101265791A Water controlling valve for oil extraction |
| 09/17/2008 | CN101265406A Pad acid liquid and pad acid sand fracturing method |
| 09/17/2008 | CN100419209C Processing technology for extracting oil from metamorphic rock high pour point oil of burial hill by using combustion drive in horizontal well |
| 09/17/2008 | CN100419208C Multi-block equal-fluidity energy-gathering parallel synchronous oil displacement method for heterogeneous oil reservoir |
| 09/17/2008 | CN100419039C Zeolite profile control agent and method for injecting zeolite profile control agent into profile control well |
| 09/16/2008 | US7424918 Interposed joint sealing layer method of forming a wellbore casing |
| 09/16/2008 | US7424916 Flameless hot oiler |
| 09/16/2008 | US7424915 Vacuum pumping of conductor-in-conduit heaters |
| 09/16/2008 | US7424913 Methods of using substantially hydrated cement particulates in subterranean applications |
| 09/16/2008 | US7424912 Wellbore treatment apparatus and method |
| 09/16/2008 | CA2501882C Telescoping centralizers for expandable tubulars |
| 09/16/2008 | CA2487658C Monobore shoe |
| 09/16/2008 | CA2478373C Method and apparatus for one trip tubular expansion |
| 09/16/2008 | CA2470881C Tubing expansion |
| 09/16/2008 | CA2458144C Screen assembly with flow through connectors |
| 09/16/2008 | CA2452969C Gel plugs and pigs for pipeline use |
| 09/16/2008 | CA2435649C Expander device |
| 09/16/2008 | CA2338800C Enhancement of profiled tubular lining systems by channel augmentation |
| 09/13/2008 | CA2623862A1 A flow control assembly having a fixed flow control device and an adjustable flow control device |
| 09/12/2008 | WO2008109645A2 Automated oil well test classification |
| 09/12/2008 | WO2008109304A1 Heavy oil drilling and recovery |
| 09/12/2008 | WO2008109216A2 High performance foams for unloading gas wells |
| 09/12/2008 | WO2008107831A2 Circulated degradable material assisted diversion |
| 09/12/2008 | WO2008107820A1 Methods using fluid stream for selective stimulation of reservoir layers |
| 09/12/2008 | WO2008107276A1 Pump system and method for delivering multi-phase mixtures |
| 09/12/2008 | WO2008106767A1 Fracturing method and apparatus utilizing gelled isolation fluid |
| 09/12/2008 | WO2008086165A3 Rigless sand control in multiple zones |
| 09/12/2008 | WO2008080072A3 Radiation processing of heavy oils |
| 09/12/2008 | WO2008067154B1 Expandable wellbore liner |
| 09/12/2008 | WO2006133008B1 Invert emulsion carrier fluid and oil-wetting agent and method of using same |
| 09/12/2008 | CA2679948A1 Apparatus and method of fracturing |
| 09/12/2008 | CA2679662A1 Circulated degradable material assisted diversion |
| 09/12/2008 | CA2679584A1 Methods using fluid stream for selective stimulation of reservoir layers |
| 09/11/2008 | US20080220992 Combining water, diutan; bromide salts, non-bromide salts; introducing the treatment fluid through the wellbore; viscosifying agent that provides high stability at elevated temperatures in solutions containing electrolytes |
| 09/11/2008 | US20080217058 Heating device for passage through subterranean asphalt and method of use |
| 09/11/2008 | US20080217023 Continuous sucker rod and method of using same |
| 09/11/2008 | US20080217021 Debris protection for sliding sleeve |
| 09/11/2008 | US20080217016 Creating fluid injectivity in tar sands formations |
| 09/11/2008 | US20080217015 Heating hydrocarbon containing formations in a spiral startup staged sequence |