| 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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| 04/25/2007 | EP1518068B1 Reinforced tubular threaded joint for improved sealing after plastic expansion |
| 04/25/2007 | EP1412030B1 Method for biosolid disposal and methane generation |
| 04/25/2007 | EP1206623B1 Anti-rotation device for use with well tools |
| 04/25/2007 | CN2894184Y Electric heating plate type far infrared heater |
| 04/25/2007 | CN2893227Y Descaling oil-well pump |
| 04/25/2007 | CN2893222Y Pumping unit |
| 04/25/2007 | CN2893221Y Spring ring plunger self-rotary total barrel type oil-well pump |
| 04/25/2007 | CN2893220Y Efficient energy-saving rod oil-well pump capable of positive well flushing |
| 04/25/2007 | CN2893142Y Gas-liquid and liquid-liquid deverting device |
| 04/25/2007 | CN2893141Y Spigot type hollow integrated separated layer water-flooding process pipe column |
| 04/25/2007 | CN2893140Y Deformation oil well oil pumping device |
| 04/25/2007 | CN2893139Y Pumping unit crank pin breaking proof automatic shut-down device |
| 04/25/2007 | CN2893130Y Multifunction pumping unit mule-head hanger |
| 04/25/2007 | CN1954132A Tagged propping agents and related methods |
| 04/25/2007 | CN1954131A Subsurface electrical heaters using nitride insulation |
| 04/25/2007 | CN1952394A Double-bridge oil-well pump |
| 04/25/2007 | CN1952347A Dynamic monitoring device for thick oil well group output and on-line monitoring method for flow rate thereof |
| 04/25/2007 | CN1952346A Method for improving petroleum recovery efficiency by adding electric current into oil reservoir |
| 04/25/2007 | CN1312379C Drive rope rupture protector for oil pumping machine |
| 04/24/2007 | US7208529 Aminocarboxylic acid breaker compositions for fracturing fluids |
| 04/24/2007 | US7207395 Method and system for testing a partially formed hydrocarbon well for evaluation and well planning refinement |
| 04/24/2007 | US7207390 Method and system for lining multilateral wells |
| 04/24/2007 | US7207389 Hybrid coiled tubing/fluid pumping unit |
| 04/24/2007 | US7207387 Methods and compositions for use with spacer fluids used in subterranean well bores |
| 04/24/2007 | US7207386 Method of hydraulic fracturing to reduce unwanted water production |
| 04/24/2007 | US7207385 Method and system for producing gas and liquid in a subterranean well |
| 04/24/2007 | US7207383 Multiple entrance shunt |
| 04/24/2007 | US7207381 Downhole pump driven by injection water |
| 04/24/2007 | CA2444043C Well stimulation tool and method for inserting a backpressure plug through a mandrel of the tool |
| 04/24/2007 | CA2438877C Well jet device |
| 04/24/2007 | CA2413566C Improved electron transfer system for well acidizing compositions and methods |
| 04/24/2007 | CA2334552C High performance powdered metal mixtures for shaped charge liners |
| 04/24/2007 | CA2253687C Apparatus and methods for stimulating a subterranean well |
| 04/19/2007 | WO2007044166A2 Foaming a wet hydrocarbon composition: process and composition |
| 04/19/2007 | WO2007043889A1 Apparatus and method for controlling supply of barrier gas in a compressor module |
| 04/19/2007 | WO2007042759A1 Methods and systems for determining reservoir properties of subterranean formations with pre-existing fractures |
| 04/19/2007 | WO2007002690A3 Nano-encapsulated triggered-release viscosity breakers |
| 04/19/2007 | WO2005017303B1 Expandable tubular |
| 04/19/2007 | US20070088505 Method and apparatus for dynamic application management in sub-sea well installations |
| 04/19/2007 | US20070087940 Method of using viscoelastic vesicular fluids to enhance productivity of formations |
| 04/19/2007 | US20070084608 Screen and Method Having a Partial Screen Wrap |
| 04/19/2007 | US20070084605 Multi-zone, single trip well completion system and methods of use |
| 04/19/2007 | US20070084604 System and method for performing multiple downhole operations |
| 04/19/2007 | US20070084603 Well cementing apparatus and method |
| 04/19/2007 | US20070084602 Proppant for hydraulic fracturing of oil and gas wells and process for decreasing or eliminating "flow-back" effect in oil and gas wells |
| 04/19/2007 | US20070084601 Gravel Packing A Well |
| 04/19/2007 | US20070084600 Heavy wax stimulation diverting agent |
| 04/19/2007 | US20070084599 Rotary expansion |
| 04/19/2007 | CA2624785A1 Apparatus and method for controlling supply of barrier gas in a compressor module |
| 04/18/2007 | EP1774138A2 Procedure and apparatus for collection of free methane gas from the sea bottom |
| 04/18/2007 | EP1773462A1 Plant for separating a mixture of oil, water and gas |
| 04/18/2007 | EP1461510B1 A drilling method for maintaining productivity while eliminating perforating and gravel packing |
| 04/18/2007 | EP1436482B1 High power umbilicals for subterranean electric drilling machines and remotely operated vehicles |
| 04/18/2007 | EP1206310B1 An apparatus for separation of a fluid flow, especially into a gas phase and a liquid phase |
| 04/18/2007 | CN2890414Y Stroke-frequency regulator for multifunctional oil-saving pumping unit |
| 04/18/2007 | CN2890413Y Double-bush oil-well pump |
| 04/18/2007 | CN2890412Y Pumping device for oil well |
| 04/18/2007 | CN2890334Y Regulating arm for downhole logging tool |
| 04/18/2007 | CN2890333Y Thermal-insulating sealing compensator for oil field gas injection well |
| 04/18/2007 | CN2890332Y Water dispenser for seal segment |
| 04/18/2007 | CN2890331Y Safety chuck for perforating gun |
| 04/18/2007 | CN2890330Y High-density seam-punching sand control screen |
| 04/18/2007 | CN2890327Y Oil pipe jet-lifting device |
| 04/18/2007 | CN1950585A Deploying an assembly into a well |
| 04/18/2007 | CN1948706A Sand proof sieve tube |
| 04/18/2007 | CN1311143C Chemically induced permeability enhancement of subterranean coal formation |
| 04/18/2007 | CN1311142C Method and apparatus for gravel packing a well |
| 04/18/2007 | CN1310850C Thermotolerant mixed explosive for oil field |
| 04/17/2007 | US7205264 Well treatment method using fluid containing lactic acid or salt thereof |
| 04/17/2007 | US7204316 Expandable well screen having temporary sealing substance |
| 04/17/2007 | US7204314 Fluid removal from gas wells |
| 04/17/2007 | US7204312 Compositions and methods for the delivery of chemical components in subterranean well bores |
| 04/17/2007 | US7204311 Placing a pre-pad fluid into a portion of a subterranean formation comprising unconsolidated particulates, placing a fracturing fluid into the portion of the subterranean formation at a pressure sufficient to create or extend at least one fracture therein; activating the aqueous tackifler compound |
| 04/17/2007 | US7204306 Device for installation of a profile liner in a well |
| 04/17/2007 | US7204007 Method and apparatus for forming a mono-diameter wellbore casing |
| 04/17/2007 | CA2442891C Expandable connection for use with a swelling elastomer |
| 04/17/2007 | CA2358837C Borate crosslinked fracturing fluid viscosity reduction breaker mechanism and products |
| 04/17/2007 | CA2263014C Compositions and methods of catalyzing the rate of iron reduction during acid treatment of wells |
| 04/17/2007 | CA2176100C Method of removing a minable product from an underground seam |
| 04/13/2007 | WO2007041823A1 Method and system for optimizing downhole fluid production |
| 04/13/2007 | CA2563259A1 Expandable tubular member |
| 04/12/2007 | WO2007041594A1 Methods and computer-readable media for determining design parameters to prevent tubing buckling in deviated wellbores |
| 04/12/2007 | WO2007040537A1 Fast hydrating guar powder, method of preparation, and methods of use |
| 04/12/2007 | WO2007040424A1 Method for supplying heat to a hydrocarbon accumulation bed |
| 04/12/2007 | WO2007039443A1 Method of producing a hydrocarbon stream from a subterranean zone |
| 04/12/2007 | WO2007021335A3 Vertical annular separation and pumping system with integrated pump shroud and baffle |
| 04/12/2007 | WO2006063200B1 Method and apparatus to deliver energy in a well system |
| 04/12/2007 | WO2004083595A3 Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons |
| 04/12/2007 | US20070083331 Methods and systems for determining reservoir properties of subterranean formations with pre-existing fractures |
| 04/12/2007 | US20070082824 Comprises phosphate ester and crosslinking metal; organophilic clays; subterranean wellbores |
| 04/12/2007 | US20070081768 Downhole Fiber Optic Wet Connect and Gravel Pack Completion |
| 04/12/2007 | US20070079970 Retrievable downhole pumping system |
| 04/12/2007 | US20070079967 Method of reducing sand production from a wellbore |
| 04/12/2007 | US20070079966 Perforation gun with integral debris trap apparatus and method of use |
| 04/12/2007 | US20070079965 Methods for enhancing aqueous fluid recovery form subterranean formations |
| 04/12/2007 | US20070079964 Method and composition for enhanced hydrocarbons recovery |
| 04/12/2007 | US20070079963 Process for foaming a wet hydrocarbon composition |
| 04/12/2007 | US20070079961 Proppant suspension testing devices and methods of use |
| 04/12/2007 | US20070079960 Well Treatment System and Method |
| 04/12/2007 | CA2625178A1 Methods and computer-readable media for determining design parameters to prevent tubing buckling in deviated wellbores |