| 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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| 02/13/2013 | CN102928556A Device and method for large-size visual physical simulation of fingering of acid liquid in acid fracturing crack |
| 02/13/2013 | CN102927197A Composite balance energy-saving oil extractor for double speed reducer |
| 02/13/2013 | CN102926742A 填砂管 Filling sand tube |
| 02/13/2013 | CN102926736A Underground gas-liquid separation system |
| 02/13/2013 | CN102926735A Underground oil-water separation system |
| 02/13/2013 | CN102926734A Multi-stage high-efficiency rotational flow self-cleaning separator and application method thereof |
| 02/13/2013 | CN102926733A Separation device |
| 02/13/2013 | CN102926732A Coalbed methane developing and well spacing method for high-water content coal reservoir of head plate |
| 02/13/2013 | CN102926731A Casing damage well sand sprayer |
| 02/13/2013 | CN102926730A Mining method for support pipe following air liquid spraying and drilling into coal bed gas of radial well |
| 02/13/2013 | CN102926729A Pressure-adjustable uniform-dryness layered steam distributing tool |
| 02/13/2013 | CN102926728A Indigenous microorganism activation and exogenous microorganism intensified oil production method in offshore oilfield |
| 02/13/2013 | CN102926727A Complete self-control combined type profile control device |
| 02/13/2013 | CN102926726A Automatic stirring device for microorganism oil-expelling blocking remover |
| 02/13/2013 | CN102926725A Formula adjusting method aiming at microbial oil-displacing block remover |
| 02/13/2013 | CN102926724A Water injector |
| 02/13/2013 | CN102926723A Remaining oil cave extracting method of exhausted oil field |
| 02/13/2013 | CN102926722A Layering oil production system |
| 02/13/2013 | CN102926721A Packaging structure of compound perforating bullet |
| 02/13/2013 | CN102926720A Ultrahigh-pressure perforating gun |
| 02/13/2013 | CN102926719A Method for exploiting abnormally high-pressure gas deposit |
| 02/13/2013 | CN102926718A Oil pumping unit with built-in speed reducer |
| 02/13/2013 | CN102926717A Transmission belt assembly of oil pumping unit |
| 02/13/2013 | CN102926716A Oil pumping unit system |
| 02/13/2013 | CN102926715A Chain-type oil pumping unit |
| 02/13/2013 | CN102926714A Pumping unit chain transmission device and application method |
| 02/13/2013 | CN102926713A Movable oil production truck |
| 02/13/2013 | CN102926712A Oil-fishing machine |
| 02/13/2013 | CN102926711A Reversing pumping unit |
| 02/13/2013 | CN102926710A Tubing string for oil extraction |
| 02/13/2013 | CN102926709A Chain pumping unit |
| 02/13/2013 | CN102926708A Movable oil-fishing vehicle |
| 02/13/2013 | CN102926707A Oil-fishing power device |
| 02/13/2013 | CN102926706A Liquid pumping and discharging method and ground pumping system of exploratory well oil testing suspension type automatic pump |
| 02/13/2013 | CN102925133A Fracturing fluid for controlling extension of fracture and fracturing method |
| 02/13/2013 | CN102925132A High-temperature resistant steam chemical auxiliary agent for thermal oil recovery |
| 02/13/2013 | CN102925129A Hydrogenating hot gas chemical solution component and application thereof to viscous oil recovery |
| 02/13/2013 | CN102921195A Gas and coal water separation device |
| 02/13/2013 | CN102093876B Hyposmosis thixotropic gel temporary plugging agent for acidifying oil layer of oil field and preparation and application thereof |
| 02/13/2013 | CN101967966B Anti-sand burying salvaging single-rubber barrel downhole choke |
| 02/13/2013 | CN101936165B Well spacing method for karst carbonate reservoir |
| 02/13/2013 | CN101892836B Method for preparing large-scale porous percolating medium |
| 02/13/2013 | CN101878349B Method of radially expanding a tubular element |
| 02/13/2013 | CN101864947B Method and device for simulating formation temperature in multi-element thermal fluid injected oil extraction three-dimensional simulation test |
| 02/13/2013 | CN101852074B Method and system for exploiting lamellar super-heavy oil deposit |
| 02/13/2013 | CN101614119B Mobile balance block device for beam-type balance oil extractor |
| 02/13/2013 | CN101592023B Thermal production snubbing device |
| 02/13/2013 | CN101338660B Horizontal production-injection well completion structure possessing flow control function |
| 02/12/2013 | US8372789 Methods of designing treatment fluids based on solid-fluid interactions |
| 02/12/2013 | US8372786 Polyelectrolyte complexes for oil and gas applications |
| 02/12/2013 | US8371399 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 02/12/2013 | US8371390 Dual packer for a horizontal well |
| 02/12/2013 | US8371388 Apparatus and method for installing a liner string in a wellbore casing |
| 02/12/2013 | US8371384 Methods for strengthening fractures in subterranean formations |
| 02/12/2013 | US8371383 Method of fracturing subterranean formations with crosslinked fluid |
| 02/12/2013 | US8371382 Methods relating to improved stimulation treatments and strengthening fractures in subterranean formations |
| 02/12/2013 | US8371381 Engineered fibers for well treatments |
| 02/12/2013 | US8371380 Steam assisted oil recovery and carbon dioxide capture |
| 02/12/2013 | US8371379 Pumping station configuration method and apparatus |
| 02/12/2013 | US8371378 Method for pre-treatment of subterranean sites adjacent to water injection wells |
| 02/12/2013 | US8371377 Method for pre-treatment of subterranean sites adjacent to water injection wells |
| 02/12/2013 | US8371376 Method for pre-treatment of subterranean sites adjacent to water injection wells |
| 02/12/2013 | US8371371 Apparatus for in-situ extraction of bitumen or very heavy oil |
| 02/12/2013 | US8371369 Crossover sub with erosion resistant inserts |
| 02/12/2013 | US8371368 Well assembly with a millable member in an opening |
| 02/12/2013 | CA2786106A1 Methods and systems for in-situ extraction of bitumen |
| 02/12/2013 | CA2747045C Passive heating assisted recovery methods |
| 02/12/2013 | CA2701883C Water sensing adaptable in-flow control device and method of use |
| 02/12/2013 | CA2695246C Device for in situ extraction of a substance comprising hydrocarbons |
| 02/12/2013 | CA2685179C Method of improving the conductivity of a fracture in the space between proppant pillars |
| 02/12/2013 | CA2674016C Methods and systems for fracturing subterranean wells |
| 02/12/2013 | CA2665328C Methods and systems for well stimulation using multiple angled fracturing |
| 02/12/2013 | CA2581586C Extraction of bitumen from oil sands using lime |
| 02/12/2013 | CA2500536C Shaped charge loading tube for perforating gun |
| 02/12/2013 | CA2469320C Method and apparatus for lifting liquids from gas wells |
| 02/11/2013 | CA2778674A1 Rust resistant well perforating gun with gripping surfaces |
| 02/09/2013 | CA2785476A1 Enhanced oil recovery process |
| 02/09/2013 | CA2784421A1 Reciprocating rod pump for sandy fluids |
| 02/09/2013 | CA2776172A1 Flow management system and method |
| 02/08/2013 | CA2784506A1 Fracturing tool anchor |
| 02/08/2013 | CA2748609A1 Fracturing tool anchor |
| 02/07/2013 | WO2013019866A2 Use of environmentally friendly solvents to replace glycol-based solvents |
| 02/07/2013 | WO2013019390A1 Method for generating discrete fracture initiation sites and propagating dominant planar fractures therefrom |
| 02/07/2013 | WO2013016952A1 Tubular oil-water separator and spiral flow generator therefor |
| 02/07/2013 | WO2012173834A3 Temperature resistant downhole elastomeric device |
| 02/07/2013 | US20130032354 Annular pressure regulating diaphragm and methods of using same |
| 02/07/2013 | US20130032353 Hydrocarbon Recovery Drill String Apparatus, Subterranean Hydrocarbon Recovery Drilling Methods, and Subterranean Hydrocarbon Recovery Methods |
| 02/07/2013 | US20130032352 Down-Hole Sand and Solids Separator Utilized in Producing Hydrocarbons |
| 02/07/2013 | US20130032350 Method Of Fracturing Multiple Zones Within A Well |
| 02/07/2013 | US20130032349 Method Of Fracturing Multiple Zones Within A Well Using Propellant Pre-Fracturing |
| 02/07/2013 | US20130032347 Method for Generating Discrete Fracture Initiation Sites and Propagating Dominant Planar Fractures Therefrom |
| 02/07/2013 | US20130032346 Method of fracturing using ultra lightweight proppant suspensions and gaseous streams |
| 02/07/2013 | US20130032345 Methods for monitoring fluids within or produced from a subterranean formation during acidizing operations using opticoanalytical devices |
| 02/07/2013 | US20130032344 Methods for monitoring fluids within or produced from a subterranean formation using opticoanalytical devices |
| 02/07/2013 | US20130032343 Permeable material compacting method and apparatus |
| 02/07/2013 | US20130032342 Cascading Liquid Air Removal Filter System and Method |
| 02/07/2013 | US20130032341 Down-Hole Gas Separator |
| 02/07/2013 | US20130032340 Methods for monitoring the formation and transport of an acidizing fluid using opticoanalytical devices |
| 02/07/2013 | US20130032337 Explosive pellet |
| 02/07/2013 | US20130032336 Establishing communication between well pairs in oil sands by dilation with steam or water circulation at elevated pressures |