| 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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| 07/03/2012 | US8211834 Hydrocarbon-based fracturing fluid compositions, methods of preparation and methods of use | 
| 07/03/2012 | US8210262 Active seismic monitoring of fracturing operations | 
| 07/03/2012 | US8210259 Zero emission liquid fuel production by oxygen injection | 
| 07/03/2012 | US8210258 Wireline-adjustable downhole flow control devices and methods for using same | 
| 07/03/2012 | US8210257 Fracturing a stress-altered subterranean formation | 
| 07/03/2012 | US8210256 Radio frequency technology heater for unconventional resources | 
| 07/03/2012 | US8210252 Fiber optic gravel distribution position sensor system | 
| 07/03/2012 | US8210251 Slickline conveyed tubular cutter system | 
| 07/03/2012 | US8210250 Methods and devices for one trip plugging and perforating of oil and gas wells | 
| 07/03/2012 | US8210249 System and method for low damage gravel packing | 
| 07/03/2012 | CA2735643C A method for the production of a lightweight magnesium silicate proppant and a proppant | 
| 07/03/2012 | CA2668909C Methods for controlling particulate migration | 
| 06/29/2012 | WO2012088709A1 Intelligent online system for adjusting balance of closed-loop pumping unit | 
| 06/28/2012 | WO2012088216A2 Method for treating hydrocarbon-bearing formations with fluorinated amine | 
| 06/28/2012 | WO2012088115A2 Method and apparatus for drilling a zero-radius lateral | 
| 06/28/2012 | WO2012088068A2 Method for mobility control in oil-bearing carbonate formations | 
| 06/28/2012 | WO2012087753A2 Method for effective de-oxygenation of product containers for use as containers for oxygen sensitive products | 
| 06/28/2012 | WO2012087516A2 Downhole release joint with radially expandable member | 
| 06/28/2012 | WO2012087465A1 Connection assembly for through tubing conveyed submersible pumps | 
| 06/28/2012 | WO2012087431A1 Systems and methods for stimulating a subterranean formation | 
| 06/28/2012 | WO2012087375A1 System and method for enhancing oil recovery from a subterranean reservoir | 
| 06/28/2012 | WO2012087349A2 Zero emission steam generation process | 
| 06/28/2012 | WO2012087175A1 Method for estimating properties of a subterranean formation | 
| 06/28/2012 | WO2012087149A1 Technical system, method and uses for dosing of at least one liquid treatment means into injection water to an injection well | 
| 06/28/2012 | WO2012085771A1 Systems and methods for interpreting multi-phase fluid flow data | 
| 06/28/2012 | WO2012085770A1 Apparatus and method for generating steam quality delivered to a reservoir | 
| 06/28/2012 | WO2012085646A1 Process of hydraulic fracturing to create a layered proppant pack structure alongside the faces of the fracture to prevent formation fines to damage fracture conductivity | 
| 06/28/2012 | WO2012085102A1 Lateral junction assembly | 
| 06/28/2012 | WO2012084890A1 Method and system for providing an annular seal | 
| 06/28/2012 | WO2012084889A1 Method of providing an annular seal, and wellbore system | 
| 06/28/2012 | WO2012083463A1 Multi-stage fracture injection process for enhanced resource production from shales | 
| 06/28/2012 | WO2012083429A1 High pressure hydrocarbon fracturing on demand method and related process | 
| 06/28/2012 | WO2012061455A3 Reduced profile abrasion resistant pump thrust bearing | 
| 06/28/2012 | WO2012058622A3 Enhancing hydrocarbon recovery | 
| 06/28/2012 | WO2012058290A3 Surface multiple well | 
| 06/28/2012 | WO2012055028A9 Alkali-activated coatings for proppants | 
| 06/28/2012 | WO2012054445A3 Expandable casing patch | 
| 06/28/2012 | WO2012054392A3 Systems and methods for insulating y-points of three phase electric motors | 
| 06/28/2012 | WO2012039967A3 Radio frequency heat applicator for increased heavy oil recovery | 
| 06/28/2012 | US20120160737 Process | 
| 06/28/2012 | US20120160524 Completion assembly and a method for stimulating, segmenting and controlling erd wells | 
| 06/28/2012 | US20120160511 Active casing hanger hook mechanism | 
| 06/28/2012 | US20120160507 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well | 
| 06/28/2012 | US20120160506 Method and apparatus for evacuating hydrocarbons from a distressed well | 
| 06/28/2012 | US20120160502 High Pressure Hydrocarbon Fracturing On Demand Method And Related Process | 
| 06/28/2012 | US20120160501 Zirconium-Based Cross-Linking Composition for Use with High pH Polymer Solutions | 
| 06/28/2012 | US20120160500 Methods for using non-volatile phosphorus hydrocarbon gelling agents | 
| 06/28/2012 | US20120160499 Process for transporting fracture ("frac") fluid additives to oil and gas wells utilizing ion exchange resin | 
| 06/28/2012 | US20120160498 Concentrated Polymer Systems Having Increased Polymer Loadings and Enhanced Methods of Use | 
| 06/28/2012 | US20120160497 Hydrocarbon Recovery Operations Fluids and Methods For Using the Same | 
| 06/28/2012 | US20120160496 Method for controlling the downhole temperature during fluid injection into oilfield wells | 
| 06/28/2012 | US20120160495 Thermal recovery of shallow bitumen through increased permeability inclusions | 
| 06/28/2012 | US20120160494 Process and apparatus for enhancing recovery of hydrocarbons from wells | 
| 06/28/2012 | US20120160493 Method and apparatus for milling a zero radius lateral window in casing | 
| 06/28/2012 | US20120160492 Boron shaped charge | 
| 06/28/2012 | US20120160491 Method and design for high shot density perforating gun | 
| 06/28/2012 | US20120160487 Method and composition for enhanced hydrocarbon recovery from a formation containing a crude oil with specific solubility groups and chemical families | 
| 06/28/2012 | US20120160486 In-situ kerogen conversion and recovery | 
| 06/28/2012 | US20120160485 Treatment of Subterranean Formations | 
| 06/28/2012 | US20120160484 Method of Improving Waterflood Performance using Barrier Fractures and Inflow Control Devices | 
| 06/28/2012 | US20120160483 Hybrid Dump Bailer and Method of Use | 
| 06/28/2012 | US20120160482 Damper Cartridge For Launching Plugs In Cementing Operations | 
| 06/28/2012 | US20120160478 High strength dissolvable structures for use in a subterranean well | 
| 06/28/2012 | US20120160473 Wired mud motor components, methods of fabricating the same, and downhole motors incorporating the same | 
| 06/28/2012 | CA2822752A1 Lateral junction assembly | 
| 06/28/2012 | CA2822659A1 In-situ kerogen conversion and recovery | 
| 06/28/2012 | CA2822619A1 Method and apparatus for drilling a zero-radius lateral | 
| 06/28/2012 | CA2822242A1 Connection assembly for through tubing conveyed submersible pumps | 
| 06/28/2012 | CA2822028A1 System and method for enhancing oil recovery from a subterranean reservoir | 
| 06/28/2012 | CA2822013A1 Downhole apparatus and method | 
| 06/28/2012 | CA2821912A1 An exit assembly with a fluid director for inducing and impeding rotational flow of a fluid | 
| 06/28/2012 | CA2820221A1 Downhole release joint with radially expandable member | 
| 06/28/2012 | CA2819259A1 Cyclonic separators and methods for separating particulate matter and solids from well fluids | 
| 06/27/2012 | EP2469020A1 Process of hydraulic fracturing to create a layered proppant pack structure alongside the faces of the fracture to prevent formation fines to damage fracture conductivity | 
| 06/27/2012 | EP2469019A1 Process for the underground gasification of coal | 
| 06/27/2012 | EP2469018A1 Method for the methane recovery from coal | 
| 06/27/2012 | EP2469012A1 Lateral junction assembly | 
| 06/27/2012 | EP2467576A2 Fiber optic gravel distribution position sensor system | 
| 06/27/2012 | EP2467573A2 Method for improving waterflood performance using barrier fractures and inflow control devices | 
| 06/27/2012 | EP2467572A1 Acoustic monitoring of hydrocarbon production | 
| 06/27/2012 | EP2467571A2 Method for determining formation fluid control events in a borehole using a dynamic annular pressure control system | 
| 06/27/2012 | EP2467570A2 Alternating flow resistance increases and decreases for propagating pressure pulses in a subterranean well | 
| 06/27/2012 | EP2467569A2 Flow path control based on fluid characteristics to thereby variably resist flow in a subterranean well | 
| 06/27/2012 | EP2467566A2 Self aligning mud saver valve seat | 
| 06/27/2012 | CN202284621U 地面驱动抽油机刹车装置 Pumping the brakes ground drive | 
| 06/27/2012 | CN202284472U Differential well temperature and pressure tester for thermal recovery horizontal well | 
| 06/27/2012 | CN202284468U Uniform steam injection sand settling device for horizontal well | 
| 06/27/2012 | CN202284467U 沉降式油样收集器 Sunken oil sample collector | 
| 06/27/2012 | CN202284466U 一种油井注蒸汽调配管柱 One kind of steam injection wells allocate string | 
| 06/27/2012 | CN202284465U Wellhead supercharging assistor | 
| 06/27/2012 | CN202284464U 油管传输复合射孔器 Tubing Conveyed Perforating complex | 
| 06/27/2012 | CN202284463U 曲柄滑块式抽油机 Slider-crank pumping units | 
| 06/27/2012 | CN1860284B Expandable wellbore assembly | 
| 06/27/2012 | CN102520706A Oil-gas well intelligent control device | 
| 06/27/2012 | CN102518945A Large-flow slickwater continuous solution preparation method | 
| 06/27/2012 | CN102518767A Two-stage balance variable-speed transmission for pumping unit | 
| 06/27/2012 | CN102518720A Electro-magnetic drum brake for oil pumping unit | 
| 06/27/2012 | CN102518426A Hydrofracture bottom-hole pressure monitoring process | 
| 06/27/2012 | CN102518423A High-temperature thermal production well downhole testing method | 
| 06/27/2012 | CN102518420A Unlimited-layer electrically controlled fracturing sliding sleeve |