| 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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| 12/13/2007 | CA2653069A1 Split stream oilfield pumping systems |
| 12/12/2007 | CN200989299Y Reducing piston conjoined separate extracting pump |
| 12/12/2007 | CN200989296Y Crankshaft beam-pumping unit |
| 12/12/2007 | CN200989287Y Oil-field flooding hydraulic pump |
| 12/12/2007 | CN200989203Y Apparatus for simulating porforation effect detection under reservoir condition |
| 12/12/2007 | CN200989201Y Composite crude oil electric dehydration polar plate |
| 12/12/2007 | CN200989200Y Throwing high-energy gas fracturing unit |
| 12/12/2007 | CN200989199Y Decompressing sand settling injection well down-hole flow |
| 12/12/2007 | CN200989198Y Prizing waterflooding device |
| 12/12/2007 | CN200989197Y Double-tube perforating gun |
| 12/12/2007 | CN200989196Y Petroleum sand preventing device |
| 12/12/2007 | CN200989195Y Gear free driving energy-saving beam-pumping unit |
| 12/12/2007 | CN200989194Y Linear pumping unit yielding well device |
| 12/12/2007 | CN200989193Y Double-pendulum balancing beam-pumping unit |
| 12/12/2007 | CN200989192Y Suspension rope device suspended-cable broken instruction stopping machine |
| 12/12/2007 | CN200989190Y Self-heating balance weight |
| 12/12/2007 | CN101086250A Capsule for downhole pump modules |
| 12/12/2007 | CN101086204A Controlled disjointed sand blower |
| 12/12/2007 | CN101086198A Method of creating a borehole in an earth formation |
| 12/12/2007 | CN100354501C Compositions and methods for treating a subterranean formation |
| 12/12/2007 | CN100354500C Counterbalance safety protection device for beam-balanced pump and its use method |
| 12/12/2007 | CN100354499C Automatic switching three-way circulation joint for oil well |
| 12/11/2007 | US7306044 Method and system for lining tubulars |
| 12/11/2007 | US7306042 Method for completing a well using increased fluid temperature |
| 12/11/2007 | US7306041 Hydraulic fracturing by injecting a viscosifyer, a dissolving agent, and aminopolycarboxylic acid or salt a pressure that exceeds fracture pressure; relieving pressure allowing at least partial closure; and flowing back the wellbore |
| 12/11/2007 | US7306040 Reducing fluid loss by placing in subterranean formation treatment fluid containg gel formed from gelling agent and crosslinking agents with a degradable group and unsaturated end groups; methylenebisacrylamide crosslinked polyacrylamide |
| 12/11/2007 | US7306039 Methods of using crosslinkable compositions |
| 12/11/2007 | US7306037 Reducing number and prevent migration of particles; preflushing with aqueous solution containing surfactant; noncatalytic reaction |
| 12/11/2007 | US7306036 System for reducing adhesion and cohesion between non metallic bailers and side wall of wells |
| 12/11/2007 | US7306035 Process for treating a formation |
| 12/11/2007 | US7306031 Tubing string rotator and method |
| 12/11/2007 | CA2492286C Running a completion assembly without killing a well |
| 12/11/2007 | CA2453980C Method of forming a tubing lined borehole |
| 12/11/2007 | CA2434840C Well screen cover |
| 12/11/2007 | CA2403493C Auto adjusting well control system |
| 12/11/2007 | CA2363583C Fracturing process and composition |
| 12/11/2007 | CA2320903C Apparatus and method for downhole fluid phase separation |
| 12/07/2007 | CA2549614A1 Methods and apparatuses for sagd hydrocarbon production |
| 12/06/2007 | WO2007140211A1 System and method for optimization of gas lift rates on multiple wells |
| 12/06/2007 | WO2007140204A1 System and method for multivariable control in three-phase separation oil and gas production |
| 12/06/2007 | WO2007140157A1 Energized fluid for generating self-cleaning filter cake |
| 12/06/2007 | WO2007140134A2 System, method, and apparatus for downhole submersible pump having fiber optic communications |
| 12/06/2007 | WO2007139541A1 Device for improving oil and gas recovery in wells |
| 12/06/2007 | WO2007139450A2 Downhole cyclic pressure pulse generator and method for increasing the permeability of pay reservoir |
| 12/06/2007 | WO2007139448A1 Method for determining dimensions of a formation hydraulic fracture |
| 12/06/2007 | WO2007138259A1 Process for hydrogen, co2 and alcohol production |
| 12/06/2007 | WO2007137927A1 Pump device |
| 12/06/2007 | WO2007137370A1 Power generation |
| 12/06/2007 | WO2007124368A3 Dispersive riserless drilling fluid |
| 12/06/2007 | WO2007117933A3 Apparatus, methods, and systems for extracting petroleum and natural gas |
| 12/06/2007 | WO2007085900A3 Multiphase fluid separator |
| 12/06/2007 | WO2006101774A3 Cemented open hole selective fracing system |
| 12/06/2007 | US20070281870 Stimuli-degradable gels |
| 12/06/2007 | US20070281866 mixed with liquid hydrocarbons; industrial scale; heat resistance; biodegradable, environmentally friendly |
| 12/06/2007 | US20070278788 Protective compression and tension sleeves for threaded connections for radially expandable tubular members |
| 12/06/2007 | US20070277984 Methods, systems, and devices for extracting a gas from a subsurface stratum |
| 12/06/2007 | US20070277982 Split stream oilfield pumping systems |
| 12/06/2007 | US20070277981 Stimuli-degradable gels |
| 12/06/2007 | US20070277980 Downhole perforator assembly and method for use of same |
| 12/06/2007 | US20070277979 Downhole wellbore tools having deteriorable and water-swellable components thereof and methods of use |
| 12/06/2007 | US20070277978 Silicone-tackifier matrixes and methods of use thereof |
| 12/06/2007 | US20070277977 contacting hydrocarbon fracturing fluid with a settling agent including a clay or activated charcoal to separate gelling agent from the hydrocarbon fracturing fluid, settling agent comprises a chemical that acts to remove the gelling agent from solution; removal of settling and gelling agent |
| 12/06/2007 | US20070277975 Methods for obtaining a wellbore schematic and using same for wellbore servicing |
| 12/06/2007 | US20070277974 Pressure sensor utilizing a low thermal expansion material |
| 12/06/2007 | US20070277973 Methods of managing water in oil shale development |
| 12/06/2007 | US20070277969 Seal Section for Electrical Submersible Pump |
| 12/06/2007 | US20070277967 Separation Of Crude Oil At The Well Head |
| 12/06/2007 | US20070277966 Safety vent valve |
| 12/06/2007 | CA2590826A1 Retention member for perforating guns |
| 12/06/2007 | CA2585743A1 Systems and methods for completing a multiple zone well |
| 12/05/2007 | EP1861581A1 Arrangement for the cleaning of a pipe separator |
| 12/05/2007 | EP1861580A1 Pipe separator inlet |
| 12/05/2007 | EP1861579A2 Method and composition for forming protective precipitate on cement surfaces prior to formation acidizing treatment |
| 12/05/2007 | CN200985880Y Oil pumping machine braking safety device |
| 12/05/2007 | CN200985879Y Automatically Energy-saving power equipment of oil pumping machine |
| 12/05/2007 | CN200985878Y Simple pendulum moment changing balancing beam type Oil pumping machine |
| 12/05/2007 | CN200985877Y Upside-down moment changing type oil pumping machine |
| 12/05/2007 | CN200985788Y High-temperature high pressure glass micromodel glass holder |
| 12/05/2007 | CN200985784Y Recovery device for oilfield sewage water floating oil |
| 12/05/2007 | CN200985783Y Rotatable and place-shifting sand transporting device |
| 12/05/2007 | CN200985782Y Operating tool string for gas well fracturing and production put |
| 12/05/2007 | CN200985781Y Oil gas well perforator external fracturing drug protecting equipment |
| 12/05/2007 | CN200985780Y Combination type precision slit-tube |
| 12/05/2007 | CN200985779Y Oil extraction tubular column |
| 12/05/2007 | CN200985778Y Multifunctional down-hole controller |
| 12/05/2007 | CN200985777Y Double tubes type non-rod hydraulic oil pumping system |
| 12/05/2007 | CN200985776Y Composite balancing intelligent type oil pumping machine |
| 12/05/2007 | CN200985775Y Moment changing balancing device of beam-pumping unit |
| 12/05/2007 | CN101084363A Method, system, controller and computer program product for controlling the flow of a multiphase fluid |
| 12/05/2007 | CN101082334A General beam type secondary regulation hydraulic energy saving system of secondary regulation |
| 12/05/2007 | CN101082333A Different diameter |
| 12/05/2007 | CN101082275A Ground surface monitoring method for high speed oil tube transmission perforation |
| 12/05/2007 | CN101082274A Water injection well layered electric testing method employing metallic sheath detective cable |
| 12/05/2007 | CN101082273A Pumping unit gearbox fountain type lubricating arrangement |
| 12/05/2007 | CN101082272A Giant-scale tower type long stroke pumping unit |
| 12/05/2007 | CN100353062C Digital control reciprocating oil submersible electric pump |
| 12/05/2007 | CN100353026C Uniform distribution type sand control device for downhole oil extraction device |
| 12/05/2007 | CN100353025C Sand-proof tube for oilfield |
| 12/05/2007 | CN100353024C Electronic, electrical and mechanical integrated dragging pumping unit |
| 12/05/2007 | CN100353023C Double-acting wheel type long stroke pumping unit |