| 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) |
|---|
| 03/19/2008 | CN201037401Y Thick oil deep well intelligence pumping unit |
| 03/19/2008 | CN201037399Y Backflow-preventing check valve and backflow-preventing check valve device for the same |
| 03/19/2008 | CN101144471A Highly effective bionic surface sealing valve oil-well pump |
| 03/19/2008 | CN101144378A Oil well electric spark de-blocking joint-forming robot |
| 03/19/2008 | CA2602996A1 Perforating gun loading bay, table and method |
| 03/18/2008 | US7346455 Wellbore evaluation system and method |
| 03/18/2008 | US7345013 Useful for making gelled fluids by crosslinking hydratable polymers is an aqueous solution of zirconium complexed with carbonate and bicarbonate as the only multidentate ligands complexed with zirconium, hydraulic fracturing |
| 03/18/2008 | US7345012 Foamed viscoelastic surfactants |
| 03/18/2008 | US7345011 Via injecting consolidating furan-based resin |
| 03/18/2008 | US7343987 Impact excavation system and method with suspension flow control |
| 03/18/2008 | US7343977 Translating downhole tool |
| 03/18/2008 | US7343976 Methods of treating subterranean formations using derivatized gelling agents |
| 03/18/2008 | US7343975 Method for stimulating a well |
| 03/18/2008 | US7343973 Methods of stabilizing surfaces of subterranean formations |
| 03/18/2008 | US7343972 System stabilizers and performance enhancers for aqueous fluids gelled with viscoelastic surfactants |
| 03/18/2008 | US7343971 Alkaline earth metal oxide or hydroxide; reduced or no tendency to precipitate, particularly at elevated temperatures; hydraulic fracturing |
| 03/18/2008 | US7343970 Real time optimization of well production without creating undue risk of formation instability |
| 03/18/2008 | US7343967 Well fluid homogenization device |
| 03/18/2008 | CA2491963C Lining bore holes by using tubing expansion |
| 03/18/2008 | CA2382438C System for enhancing fluid flow in a well |
| 03/18/2008 | CA2215503C Thermosetting composition, its uses and a flexible, unfoldable preform containing this composition |
| 03/15/2008 | CA2601297A1 Submergible motor protector bag |
| 03/14/2008 | CA2602883A1 Methods of forming and using an in situ heavy hydrocarbon emulsion |
| 03/13/2008 | WO2008031040A2 Systems and methods to retard rod string backspin |
| 03/13/2008 | WO2008030758A1 Polyelectrolyte complexes for oil and gas applications |
| 03/13/2008 | WO2008030268A2 In situ recovery from hydrocarbonaceous earth formations |
| 03/13/2008 | WO2008029124A1 Hydrocarbon recovery process |
| 03/13/2008 | WO2008003072A3 Dewatering apparatus |
| 03/13/2008 | US20080065363 Method for enhancing production allocation in an integrated reservoir and suface flow system |
| 03/13/2008 | US20080060819 Systems and methods to retard rod string backspin |
| 03/13/2008 | US20080060812 Injectinga viscoelastic surfactant (VES) gelling agent; and a fluid loss control agent of alkali earth metal oxides, alkali earth metal hydroxides, transition metal oxides, transition metal hydroxides through a wellbore to the subterranean formation |
| 03/13/2008 | US20080060810 Methods for treating a subterranean formation with a curable composition using a jetting tool |
| 03/13/2008 | US20080060809 High Porosity Fractures and Methods of Creating High Porosity Fractures |
| 03/13/2008 | US20080060807 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | US20080060806 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | US20080060805 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | US20080060804 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | US20080060802 System for reducing adhesion and cohesion between non metallic bailers and side wall of wells |
| 03/13/2008 | US20080060800 Method and system for accessing subterranean deposits from the surface |
| 03/13/2008 | US20080060799 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | US20080060571 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 03/13/2008 | CA2662493A1 Polyelectrolyte complexes for oil and gas applications |
| 03/13/2008 | CA2662295A1 Hydrocarbon recovery process |
| 03/13/2008 | CA2662055A1 Systems and methods to retard rod string backspin |
| 03/12/2008 | EP1898044A2 Annulus pressure control drilling systems and methods |
| 03/12/2008 | EP1606159B1 Method and device for stabilizing and controlling lowering or raising of a structure between the surface and the sea floor |
| 03/12/2008 | CN201035077Y Sensing device used for monitoring oil well oil pumping machine stroke frequency |
| 03/12/2008 | CN201034073Y Sand-proof self-cleaner for submersible electric pump |
| 03/12/2008 | CN201034072Y Packing cascade thick-oil pump |
| 03/12/2008 | CN201034027Y Off-load grappling tool |
| 03/12/2008 | CN101142373A Arrangement for the cleaning of a pipe separator |
| 03/12/2008 | CN101142372A Down hole physical upgrading of heavy crude oils by selective energy absorption |
| 03/12/2008 | CN101139985A Wheeled oil pumping machine |
| 03/12/2008 | CN101139927A High-density sampling point storing flow gage measuring inside oil conduit |
| 03/12/2008 | CN101139924A Electric spark unblocking slot-making method for oil well gun perforation blast-hole |
| 03/12/2008 | CN101139923A Method for developing deep-layer heavy crude reservoir by carbon dioxide auxiliary steam driving |
| 03/12/2008 | CN101139922A Novel technical project for recovering oil gas |
| 03/12/2008 | CN101139921A Guide-roller type long stroke energy-saving pumping unit |
| 03/11/2008 | US7341117 Method and apparatus for a monodiameter wellbore, monodiameter casing, monobore, and/or monowell |
| 03/11/2008 | US7341104 Methods of using substantially hydrated cement particulates in subterranean applications |
| 03/11/2008 | US7341103 Compositions and methods for treating subterranean formations with liquefied petroleum gas |
| 03/11/2008 | US7341102 Flue gas injection for heavy oil recovery |
| 03/11/2008 | US7341100 Piggable separation system |
| 03/11/2008 | CA2492082C Extraction of hydrocarbons from a wellbore and the generation of electrical energy therefrom without exhausing waste gas to the atmosphere |
| 03/11/2008 | CA2447270C Expanding tubing |
| 03/11/2008 | CA2430784C Abrasion resistant frac head |
| 03/11/2008 | CA2427332C Flow controller with downhole pumping system |
| 03/07/2008 | CA2600602A1 Annulus pressure control drilling systems and methods |
| 03/06/2008 | WO2008028074A2 Low bulk density proppant and methods for producing the same |
| 03/06/2008 | WO2008027982A2 Method and apparatus for selective down hole fluid communication |
| 03/06/2008 | WO2008008877A3 Diverless connector for bend restrictors and/or bend stiffeners |
| 03/06/2008 | WO2008000932A3 Optimized method for storing heat energy in an aquifer |
| 03/06/2008 | WO2007140258A3 Perforating methods and devices for high wellbore pressure applications |
| 03/06/2008 | WO2007131134A3 Multi-zone, single trip well completion system and methods of use |
| 03/06/2008 | WO2007082109A3 Interference-seal plunger for an artificial lift system |
| 03/06/2008 | WO2007058813A3 Methods for recovering oil from an oil reservoir |
| 03/06/2008 | US20080058228 Low bulk density proppant and methods for producing the same |
| 03/06/2008 | US20080053706 Continuous monobore liquid lining system |
| 03/06/2008 | US20080053702 Assembly and Method for Determining Thermal Properties of a Formation and Forming a Liner |
| 03/06/2008 | US20080053659 Method of Inhibiting Hydrate Formation |
| 03/06/2008 | US20080053658 Method and apparatus for selective down hole fluid communication |
| 03/06/2008 | US20080053655 Downhole steam generator |
| 03/06/2008 | US20080053298 Weight Spacer Apparatus |
| 03/06/2008 | CA2662044A1 Improved apparatus for the decomposition of hydrogen peroxide |
| 03/06/2008 | CA2662020A1 Method and apparatus for selective down hole fluid communication |
| 03/06/2008 | CA2661799A1 Low bulk density proppant and methods for producing the same |
| 03/06/2008 | CA2661606A1 Method of storage of sequestered greenhouse gasses in deep underground reservoirs |
| 03/06/2008 | CA2600149A1 Downhole steam generator |
| 03/05/2008 | EP1893844A2 Separating constituents of a fluid mixture |
| 03/05/2008 | EP1893843A1 Apparatus and method for transferring fluids from a floating vessel to a subsea intervention module |
| 03/05/2008 | CN201031793Y Low type completely balancing long stroke beam-pumping unit |
| 03/05/2008 | CN201031792Y Improved down-hole screw pump ground driving head |
| 03/05/2008 | CN201031791Y Equal-diameter strong start and stop oil-well pump |
| 03/05/2008 | CN201031684Y High-efficiency bottomhole separator |
| 03/05/2008 | CN201031683Y Mobile oil field gas wet-type purification apparatus |
| 03/05/2008 | CN201031682Y Mobile oil field gas dry-type purification apparatus |
| 03/05/2008 | CN201031681Y Single well oil gas water separation buffering heating uniset |
| 03/05/2008 | CN201031680Y Corrupt greasy dirt water recovery device |
| 03/05/2008 | CN201031679Y Deep layer gas well multiple fracturing tools string |
| 03/05/2008 | CN201031678Y Oil well automatically power feeding device |