| 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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| 05/15/2008 | WO2008057102A1 Controlling pressure and static charge within a wellbore |
| 05/15/2008 | WO2008056301A1 Method of plugging fractured formation |
| 05/15/2008 | WO2008055351A1 Oil well fracturing fluids and methods |
| 05/15/2008 | WO2008033536A3 Method of forming subterranean barriers with molten wax |
| 05/15/2008 | WO2008024868A8 Method of obtaining a treatment composition for improving the productivity of hydrocarbon producing wells |
| 05/15/2008 | US20080114547 Method and System for Determining Hydrocarbon Properties |
| 05/15/2008 | US20080113884 alkylxylene moiety in the alkylxylene sulfonate contains a high percentage of the 4-alkyl-1,2-dimethyl benzene isomer and attachment of the alkyl group to the xylene ring at positions higher than the 2-position on the alkyl carbon chain; for enhancing the recovery of oil from a subterranean reservoir |
| 05/15/2008 | US20080111434 Electric motors for powering downhole tools |
| 05/15/2008 | US20080110641 Hanging Apparatus And Method |
| 05/15/2008 | US20080110630 Method for Production of High Pressure Steam from Produced Water |
| 05/15/2008 | US20080110629 Rotatably mounted internally within housing connected to hose for receiving high pressure fluid; rotor includes at least two tangential jets oriented off center for ejecting fluid to generate torque and rotate rotor and cut substantially cylindrical tunnel in subterranean formation; horizontal drilling |
| 05/15/2008 | US20080110624 Methods for controlling water and particulate production in subterranean wells |
| 05/15/2008 | US20080110623 Method of Stimulating Oil and Gas Wells Using Deformable Proppants |
| 05/15/2008 | US20080110622 Methods of Isolating Hydrajet Stimulated Zones |
| 05/15/2008 | US20080110621 Managing lost returns in a wellbore |
| 05/15/2008 | US20080110620 One Trip Liner conveyed Gravel Packing and Cementing System |
| 05/15/2008 | US20080110618 In Situ Fluid Formation for Cleaning Oil- or Synthetic-Oil-Based Mud |
| 05/15/2008 | US20080110616 Composite Tubular Structure |
| 05/15/2008 | US20080110611 Tubing pressure insensitive control system |
| 05/15/2008 | DE19983586B4 Zünden von Sprengeinrichtungen Ignition of explosive devices |
| 05/15/2008 | CA2668561A1 Use of anionic surfactants as hydration aid for fracturing fluids |
| 05/15/2008 | CA2668505A1 Method of plugging fractured formation |
| 05/15/2008 | CA2667321A1 Oil well fracturing fluids and methods |
| 05/15/2008 | CA2634213A1 Controlling pressure and static charge within a wellbore |
| 05/15/2008 | CA2568212A1 Reactivaiting gas wells |
| 05/14/2008 | EP1919590A1 Separator for separating a solid, liquid and/or gas mixture |
| 05/14/2008 | EP1492939B1 In situ biodegradation of subsurfacecontaminants by injection of phosphate |
| 05/14/2008 | EP1350006B1 Method and apparatus for treating a wellbore with vibratory waves to remove particles therefrom |
| 05/14/2008 | CN201059263Y Two-path highly effective liquid drawing pump |
| 05/14/2008 | CN201059262Y Exhausting synergy injection-production oil-well pump |
| 05/14/2008 | CN201059260Y Oil-well pump |
| 05/14/2008 | CN201059259Y Production well abrasion-resistant sticking-proof cylinder-free oil-well pump |
| 05/14/2008 | CN201059258Y Tubing pump |
| 05/14/2008 | CN201059257Y Stroke increasing energy saving type compound balance beam pumping unit |
| 05/14/2008 | CN201059256Y Long plunger type sand-proof oil-well pump |
| 05/14/2008 | CN201059255Y Long plunger type viscous crude oil pump |
| 05/14/2008 | CN201059254Y Disconnecting-proof crank-pin |
| 05/14/2008 | CN201059183Y Oil field fire coal steam-injection boiler control apparatus |
| 05/14/2008 | CN201059182Y Multi-purpose stainless composite sieve tube |
| 05/14/2008 | CN201059181Y Fracturing sand-proof packing tool |
| 05/14/2008 | CN201059176Y Water injection well stable metering controller |
| 05/14/2008 | CN201059167Y Round spindle telescopic joint |
| 05/14/2008 | CN101180449A 径向扩张系统 Radial expansion of the system |
| 05/14/2008 | CN101180446A Method for drilling stable borehole |
| 05/14/2008 | CN101178005A Modularized perforating tool |
| 05/14/2008 | CN101178004A Straight rotary pumping unit |
| 05/14/2008 | CN100388145C Water source heat pump well water flow energy saving automatic cotnroller |
| 05/14/2008 | CN100387804C Expansion device for expanding a pipe |
| 05/14/2008 | CN100387783C Method of installation of a tension leg platform |
| 05/13/2008 | USRE40308 Multi-purpose injection and production well system |
| 05/13/2008 | US7370708 Seal arrangement |
| 05/13/2008 | US7370705 Multiple zone downhole intelligent flow control valve system and method for controlling commingling of flows from multiple zones |
| 05/13/2008 | US7370704 Triaxial temperature limited heater |
| 05/13/2008 | US7370701 Wellbore completion design to naturally separate water and solids from oil and gas |
| 05/13/2008 | US7370700 Multiple entrance shunt |
| 05/13/2008 | US7370699 One trip cemented expandable monobore liner system and method |
| 05/13/2008 | US7370696 Wellbore system for producing fluid |
| 05/13/2008 | CA2526102C Lightweight and compact subsea intervention package and method |
| 05/13/2008 | CA2471559C Improved method of hydraulic fracturing to reduce unwanted water production |
| 05/13/2008 | CA2160048C Setting tool for setting a hydraulically actuated downhole tool |
| 05/10/2008 | CA2568214A1 Additive supply system for produced oil |
| 05/08/2008 | WO2008055188A2 System and method for performing oilfield simulation operations |
| 05/08/2008 | WO2008054669A1 Method of cementing well bores |
| 05/08/2008 | WO2008054256A1 Method for acting on a bottom-hole zone |
| 05/08/2008 | WO2008053147A1 Recovery of oil |
| 05/08/2008 | WO2008052381A1 A wheel type pumping unit |
| 05/08/2008 | WO2008036812A3 Nano-sized particles for stabilizing viscoelastic surfactant fluids |
| 05/08/2008 | WO2007084927A3 Fluid lift system |
| 05/08/2008 | US20080105437 System and method utilizing a compliant well screen |
| 05/08/2008 | US20080105429 Method Of Cementing Expandable Well Tubing |
| 05/08/2008 | CA2668467A1 Recovery of oil |
| 05/07/2008 | EP1918509A2 Apparatus and method for recovering fluids from a well and/or injecting fluids into a well |
| 05/07/2008 | EP1918507A1 Shaped charge comprising an acid |
| 05/07/2008 | EP1917416A1 Installation comprising at least two seafloor-surface connectors for at least two submarine pipelines resting on the seafloor |
| 05/07/2008 | CN201057352Y Balance beam type oil pumping machine crank protection fence |
| 05/07/2008 | CN201057147Y Pumping rod guide apparatus of screw pump |
| 05/07/2008 | CN201057142Y Multifunctional internal-track connecting-tripping device |
| 05/07/2008 | CN201057141Y Double-valve oil pump |
| 05/07/2008 | CN201057138Y Special oil pump of linear electric motor |
| 05/07/2008 | CN201057040Y Assembled triple channel by-pass joint |
| 05/07/2008 | CN201057039Y Single hole sandblaster |
| 05/07/2008 | CN201057038Y Novel layered fracturing technique string of sand-preventing gas-blocking well |
| 05/07/2008 | CN201057037Y One-time lifted fracturing string of horizontal well |
| 05/07/2008 | CN201057036Y Geothermal vapor driven oil production device |
| 05/07/2008 | CN201057035Y Skid-mounted integrated polymer mixing and injecting station |
| 05/07/2008 | CN201057034Y Mouth sleeve with filter |
| 05/07/2008 | CN201057033Y Integrated control device of continuous pipe working machine |
| 05/07/2008 | CN201057032Y Double-medicine type cover perforating bullet |
| 05/07/2008 | CN201057031Y Perforating bullet suitable for carrying type fracturing perforating tool |
| 05/07/2008 | CN201057030Y Anti-release and blowout-preventing screen pipe |
| 05/07/2008 | CN201057029Y High-efficiency sand preventing pipe for oil well |
| 05/07/2008 | CN201057028Y Trapezoid slit sand-preventing screen pipe |
| 05/07/2008 | CN201057027Y Non-coupling sand-proof pipe |
| 05/07/2008 | CN201057026Y Skid-mounted narrow-bore tube drainage and gas-recovery device |
| 05/07/2008 | CN201057025Y Mobile standard oil recovery device |
| 05/07/2008 | CN101175893A Self conforming screen |
| 05/07/2008 | CN101174813A Energy-saving control method of oil pumping machine |
| 05/07/2008 | CN101173607A Disjointing controllable multi-layer fracturing tubular pile device of sandblaster and method for controlling disjointing |
| 05/07/2008 | CN101173606A Controllable disjoint sandblaster |
| 05/07/2008 | CN101173605A Layered quantitative gas filling device |