| 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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| 04/29/2008 | US7363979 Down hole oil and gas well heating system and method for down hole heating of oil and gas wells |
| 04/29/2008 | US7363978 introducing a mixture of fluids and surfactants into subterranean formation, to consolidate proppant particles; surface treatment |
| 04/29/2008 | US7363974 Gravel packing a well |
| 04/29/2008 | US7363973 Method and apparatus for stimulating heavy oil production |
| 04/29/2008 | US7363971 Method and apparatus for maintaining a multi-chip module at a temperature above downhole temperature |
| 04/29/2008 | US7363967 Downhole tool with navigation system |
| 04/29/2008 | US7363691 Method and apparatus for forming a mono-diameter wellbore casing |
| 04/29/2008 | US7363690 Method and apparatus for forming a mono-diameter wellbore casing |
| 04/29/2008 | CA2486091C Controlling a pressure transient in a well |
| 04/29/2008 | CA2457902C Method and system for extraction of resources from a subterranean well bore |
| 04/29/2008 | CA2428618C Plunger for gas wells |
| 04/29/2008 | CA2339715C Side entry sub |
| 04/29/2008 | CA2244273C A device for transferring fluid between equipment on the seabed and a surface unit |
| 04/27/2008 | CA2608274A1 In-well method for improving hydrocarbon production and quality using an emulsion |
| 04/24/2008 | WO2008048852A2 Subsea installation systems and methods |
| 04/24/2008 | WO2008048456A2 Optimized well spacing for in situ shale oil development |
| 04/24/2008 | WO2008048455A2 Enhanced shale oil production by in situ heating using hydraulically fractured producing wells |
| 04/24/2008 | WO2008048454A2 Combined development of oil shale by in situ heating with a deeper hydrocarbon resource |
| 04/24/2008 | WO2008048453A2 Improved method of developing a subsurface freeze zone using formation fractures |
| 04/24/2008 | WO2008048451A2 Improved method of developing subsurface freeze zone |
| 04/24/2008 | WO2008048109A1 Subsea accumulator monitoring system |
| 04/24/2008 | WO2008028015A3 Improved apparatus for the decomposition of hydrogen peroxide |
| 04/24/2008 | WO2008024645A3 Autonomous inflow restrictors for use in a subterranean well |
| 04/24/2008 | WO2008017018A3 Kinetic gas hydrate inhibitors in completion fluids |
| 04/24/2008 | WO2008005088A3 Dual cylinder lift pump system and method |
| 04/24/2008 | WO2008004079A3 Connector arrangement with penetrator in a submersible electrical assembly |
| 04/24/2008 | WO2004087496A8 Method and device for stabilizing and controlling lowering or raising of a structure between the surface and the sea floor |
| 04/24/2008 | US20080097735 System for predicting changes in a drilling event during wellbore drilling prior to the occurrence of the event |
| 04/24/2008 | US20080093085 Inverted electrical submersible pump completion to maintain fluid segregation and ensure motor cooling in dual-stream well |
| 04/24/2008 | US20080093084 Inverted electrical submersible pump completion to maintain fluid segregation and ensure motor cooling in dual-stream well |
| 04/24/2008 | US20080093083 Gas Handling In A Well Environment |
| 04/24/2008 | US20080093081 Method for Managing Hydrates in Subssea Production Line |
| 04/24/2008 | US20080093079 Configurable wellbore zone isolation system and related systems |
| 04/24/2008 | US20080093077 Injection Apparatus for Injecting an Activated Fluid into a Well-Bore and Related Injection Method |
| 04/24/2008 | US20080093076 Milling system and method of milling |
| 04/24/2008 | US20080093074 Communicating Through a Barrier in a Well |
| 04/24/2008 | US20080093072 Method of improving solids separation efficiency |
| 04/24/2008 | US20080093071 In Situ Combustion in Gas Over Bitumen Formations |
| 04/24/2008 | US20080093070 Method for Signalling A Downhole Device in a Flowing Well |
| 04/24/2008 | US20080093069 Downhole wet connect using piezoelectric contacts |
| 04/24/2008 | US20080093068 System for Lining a Wellbore Casing |
| 04/24/2008 | CA2666506A1 Method of collecting hydrocarbons using a barrier tunnel |
| 04/24/2008 | CA2666296A1 Heating an organic-rich rock formation in situ to produce products with improved properties |
| 04/24/2008 | CA2664321A1 Combined development of oil shale by in situ heating with a deeper hydrocarbon resource |
| 04/24/2008 | CA2664316A1 Improved method of developing subsurface freeze zone |
| 04/24/2008 | CA2663824A1 Optimized well spacing for in situ shale oil development |
| 04/24/2008 | CA2663823A1 Enhanced shale oil production by in situ heating using hydraulically fractured producing wells |
| 04/24/2008 | CA2663650A1 Improved method of developing a subsurface freeze zone using formation fractures |
| 04/24/2008 | CA2565477A1 Steam generation apparatus and method |
| 04/23/2008 | EP1914380A1 Expandable wellbore junction |
| 04/23/2008 | EP1913234A2 Methods and compositions for determination of fracture geometry in subterranean formations |
| 04/23/2008 | EP1913233A1 System for cyclic injection and production from a well |
| 04/23/2008 | EP1639228B1 Method for stimulating an oilfield comprising using different scale-inhibitors |
| 04/23/2008 | CN201050473Y Pumping unit anti-slip vehicle lock |
| 04/23/2008 | CN201050471Y Oil extractor |
| 04/23/2008 | CN201050470Y Gearless transmission oil pumping unit |
| 04/23/2008 | CN201050469Y Double-ring type load relief oil-well pump |
| 04/23/2008 | CN201050358Y Device for monitoring oil well pumping unit start-stop and collecting up and down stroke electric current and punching number |
| 04/23/2008 | CN201050357Y Oil field oil water, mud closed evacuation recovery system |
| 04/23/2008 | CN201050356Y Adjustable separator |
| 04/23/2008 | CN201050355Y Polymer injection well eccentric distributor |
| 04/23/2008 | CN201050354Y Water treating system for oil field production |
| 04/23/2008 | CN201050353Y High-intensity highly effective filtering sand controller |
| 04/23/2008 | CN201050352Y Detachable type stainless steel corrugated sand control screen |
| 04/23/2008 | CN201050351Y Electric pump well self-sealing type sand controller capable of flushing |
| 04/23/2008 | CN201050350Y Pumping unit well self-sealing type sand controller capable of flushing |
| 04/23/2008 | CN201050349Y Deep gas well subsection acidizing and completion integral tool string |
| 04/23/2008 | CN201050348Y Oil pump balance control device |
| 04/23/2008 | CN201050347Y Pump protecting pipe capable of well washing |
| 04/23/2008 | CN201050346Y Connection rod device of beam type oil pumping machine |
| 04/23/2008 | CN201050345Y Belch-proof crude oil recovery equipment |
| 04/23/2008 | CN201050344Y Diameter variable bushing swab |
| 04/23/2008 | CN201050321Y Thick oil thermal production well stuck-releasing matching tool |
| 04/23/2008 | CN201050316Y Snubbing environment-friendly operation hydraulic control anchor for water injection well |
| 04/23/2008 | CN101166889A Systems and methods for producing oil and/or gas |
| 04/23/2008 | CN101166888A Accessing subterranean resources by formation collapse |
| 04/23/2008 | CN101166887A U-shaped fiber optical cable assembly for use in a heated well and methods for installing and using the assembly |
| 04/23/2008 | CN101165314A Intelligent seal-testing flow-measuring and adjusting device and method |
| 04/23/2008 | CN101165313A Beam-pumping unit |
| 04/23/2008 | CN101164920A Deep treatment and resource regeneration method for oil field extracted waste water |
| 04/23/2008 | CN100383442C Ball shape flow limit valve and its use in liquid transport pipeline |
| 04/23/2008 | CN100383363C Direct ground driving gear of screw pump |
| 04/23/2008 | CA2565220A1 Apparatus and method for installing wellbore string devices |
| 04/22/2008 | US7361628 Remote delivery of latex drag-reducing agent without introduction of immiscible low-viscosity flow facilitator |
| 04/22/2008 | US7360998 Method of cleaning out blockages which prevent operation of a reciprocating downhole tubing pump |
| 04/22/2008 | US7360604 Expander system for stepwise expansion of a tubular element |
| 04/22/2008 | US7360602 Barrier orifice valve for gas lift |
| 04/22/2008 | US7360601 Submersible well pump installation procedure |
| 04/22/2008 | US7360599 Debris reduction perforating apparatus and method for use of same |
| 04/22/2008 | US7360597 Method and apparatus for gas displacement well systems |
| 04/22/2008 | US7360596 Method and device for intensifying the permeability of ground layers close to bore holes and filter bodies and filter layers in wells and other production wells |
| 04/22/2008 | US7360595 Method and system for underground treatment of materials |
| 04/22/2008 | US7360593 Product for coating wellbore screens |
| 04/22/2008 | US7360592 Compliant cladding seal/hanger |
| 04/22/2008 | US7360591 System for radially expanding a tubular member |
| 04/22/2008 | US7360588 Thermal processes for subsurface formations |
| 04/22/2008 | US7360587 Debris reduction perforating apparatus |
| 04/22/2008 | US7360487 Connector for perforating gun tandem |
| 04/22/2008 | CA2524666C Wellbores utilizing fiber optic-based sensors and operating devices |
| 04/22/2008 | CA2504002C Heating apparatus for wells |