| 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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| 01/27/2005 | US20050016292 Multiphase flow measurement system |
| 01/27/2005 | US20050015963 Protective sleeve for threaded connections for expandable liner hanger |
| 01/27/2005 | CA2532811A1 Method for production and upgrading of oil |
| 01/26/2005 | EP1500784A2 Apparatus for and a method of anchoring an expandable conduit |
| 01/26/2005 | EP1499791A2 Sand and particle separator for fluid pumping systems |
| 01/26/2005 | EP1212513B1 Expandable tubing |
| 01/26/2005 | EP1060450A4 Method for measuring and controlling the flow of natural gas from gas wells |
| 01/26/2005 | CN2674153Y Long trunk piston, double fixation valve pump |
| 01/26/2005 | CN2674152Y Forced oil increasing means for oil well |
| 01/26/2005 | CN2674151Y Air sand pump |
| 01/26/2005 | CN2674150Y Double motor balancing type ground driving equipment for screw rod pump |
| 01/26/2005 | CN2674149Y Ground driving means for hydraulic transmission screw rod pump |
| 01/26/2005 | CN2674148Y Tube like pump for feeding and sucking |
| 01/26/2005 | CN2674147Y High efficiency, energy-saving mechanical submersible pump |
| 01/26/2005 | CN2674146Y Scale-proof injection type oil sucking pump |
| 01/26/2005 | CN2674086Y Equipment for scale-removing, scale-proof and sterilizing for oil field waste water re-injection treatment system |
| 01/26/2005 | CN2674085Y Novel, vehicle carried, self-moving and multi-functional oil prodn. vehicle |
| 01/26/2005 | CN2674084Y Drop off-prevention rod clamp of beam unit load rod |
| 01/26/2005 | CN2674083Y Pushing/drawing apparatus of counter weight of beam unit |
| 01/26/2005 | CN2674081Y Sand controlled well flushing valve |
| 01/26/2005 | CN1571877A Installation for the separation of fluids |
| 01/26/2005 | CN1570349A Modulated wave oil pipe electric heating oil extraction and wax cleaning apparatus |
| 01/26/2005 | CN1570348A Eyelet step sieve pipe exploitation method for a special type of hydrocarbon reservoir |
| 01/26/2005 | CN1570347A Six-rod phase conversion energy conservation walking beam type beam-pumping unit |
| 01/26/2005 | CN1570346A Enclosed return circuit hydraulic beam-pumping unit utilizing frequency conversion technology |
| 01/26/2005 | CN1569824A Alkyl benzene sulfonate, its preparation method , alkyl benzene sulfonate surfactant and its application in tertiary oil recovery |
| 01/26/2005 | CN1186518C Sealed oil well as oil reservoir |
| 01/25/2005 | US6846420 Process for removing oil from solid materials recovered from a well bore |
| 01/25/2005 | US6845821 Separation oil, water in wells; vertical oil accumulation channel; transverse plates |
| 01/25/2005 | US6845820 Completion apparatus and methods for use in hydrocarbon wells |
| 01/25/2005 | CA2345387C Detonators for use with explosive devices |
| 01/25/2005 | CA2336655C Semblance processing for an acoustic measurement-while-drilling system for imaging of formation boundaries |
| 01/22/2005 | CA2474321A1 Acidizing stimulation method using a ph buffered acid solution |
| 01/20/2005 | WO2005005778A1 Downhole Data Communication |
| 01/20/2005 | WO2005005777A1 A pipe separator with improved separation |
| 01/20/2005 | WO2005005776A1 A method and device for separation of a fluid, in particular oil, gas and water |
| 01/20/2005 | WO2005005772A1 Expanding a tubular element to different inner diameters |
| 01/20/2005 | WO2005005771A1 Self orienting lateral junction system |
| 01/20/2005 | WO2005005764A2 Spiral tubular tool and method |
| 01/20/2005 | WO2005005763A2 Method for drilling with improved fluid collection pattern |
| 01/20/2005 | WO2005005567A1 A method for inhibiting hydrate formation |
| 01/20/2005 | WO2005005094A1 Well perforating gun |
| 01/20/2005 | WO2005005012A1 Separator |
| 01/20/2005 | WO2004097155A3 Casing with isolated annular space |
| 01/20/2005 | US20050014654 Method of reclaiming brine solutions using an organic chelant |
| 01/20/2005 | US20050013707 Portable, surface-mounted well pump |
| 01/20/2005 | US20050012278 Metal sleeve seal for threaded connections |
| 01/20/2005 | US20050012036 Providing a light cell in a wellbore |
| 01/20/2005 | US20050011650 Method and apparatus for expanding and separating tubulars in a wellbore |
| 01/20/2005 | US20050011649 Downhole pump assembly and method of recovering well fluids |
| 01/20/2005 | US20050011648 In-situ filters, method of forming same and systems for controlling proppant flowback employing same |
| 01/20/2005 | US20050011647 Piggable separation system |
| 01/20/2005 | US20050011646 Method and apparatus for collecting and then disposing sand contained in production fluid |
| 01/20/2005 | US20050011643 Wear resistant tubular connection |
| 01/20/2005 | US20050011642 Stuffing box for progressing cavity pump drive |
| 01/20/2005 | US20050011641 Wellhead |
| 01/20/2005 | US20050011179 Gas turbine system comprising closed system of fuel and combustion gas using underground coal layer |
| 01/20/2005 | CA2755402A1 Downhole data communication |
| 01/20/2005 | CA2534398A1 Well perforating gun related application information |
| 01/20/2005 | CA2531963A1 A process for enhanced recovery of crude oil from oil wells using novel microbial consortium |
| 01/20/2005 | CA2525850A1 Method for drilling with improved fluid collection pattern |
| 01/19/2005 | EP1497531A1 Method of producing hydrocarbon gas |
| 01/19/2005 | EP1497530A1 Method for increasing production from a wellbore |
| 01/19/2005 | EP1497529A1 Method to form a barrier in a reservoir with a magnetorheological fluid |
| 01/19/2005 | EP1295060B1 Tubular threaded joint capable of being subjected to diametral expansion |
| 01/19/2005 | EP1234099B1 Downhole pulser |
| 01/19/2005 | CN2672325Y Mechanical seal device in ground driven single screw pump speed reducer |
| 01/19/2005 | CN2672323Y Spring reset inclined well oil pump fixed valve |
| 01/19/2005 | CN2672322Y Screw pump anti-slip device |
| 01/19/2005 | CN2672319Y Self compensation low friction resistance plunger pump |
| 01/19/2005 | CN2672318Y Sand scraper oil pump |
| 01/19/2005 | CN2672287Y Overflow water processor for water injection well well head |
| 01/19/2005 | CN2672286Y Zero-load detection protector for friction change-over oil pumping machine |
| 01/19/2005 | CN1568394A Method for the recovery of hydrocarbons from hydrates |
| 01/19/2005 | CN1567708A Combined pole-changing control method of oil field watering motor |
| 01/19/2005 | CN1566653A Protection type oil-well pump fixed valve assembly |
| 01/19/2005 | CN1566615A Heat transmission simulation technology for nitrogen insulated wellbore of concentric oil pipe well |
| 01/19/2005 | CN1566614A Trip prevention method for oil pipe of screw pump oil well |
| 01/19/2005 | CN1566613A Hydraulic fracturing process for generating multiple fractures |
| 01/19/2005 | CN1566327A Viscosity reduction bacterium for improving petroleum recovery efficiency and its use |
| 01/19/2005 | CN1566258A Alkyl aryl alkyl-sulfonate surfactant composition and its application in tertiary oil recovery |
| 01/19/2005 | CN1566257A Alkyl aryl alkyl-amino-acid surfactant composition and its application in tertiary oil recovery |
| 01/19/2005 | CN1566256A Alkyl aryl alkylbetaine surfactant composition and its application in tertiary oil recovery |
| 01/18/2005 | US6843322 Monobore shoe |
| 01/18/2005 | US6843320 Downhole tool with ratcheting swivel and method |
| 01/18/2005 | US6843319 Expansion assembly for a tubular expander tool, and method of tubular expansion |
| 01/18/2005 | US6843316 Method for improving well quality |
| 01/18/2005 | US6843313 Pump drive head with stuffing box |
| 01/18/2005 | CA2805601A1 Method of acidizing a subterranean formation with diverting foam or fluid |
| 01/18/2005 | CA2738482A1 Method of acidizing a subterranean formation with diverting foam or fluid |
| 01/14/2005 | CA2473476A1 Isolation of subterranean zones |
| 01/14/2005 | CA2464813A1 On-site production of electricity utilizing oil shale |
| 01/13/2005 | WO2005003511A1 Apparatus and method for sealing a wellbore |
| 01/13/2005 | WO2005003509A1 Method for, and the construction of, a long-distance well for the production, transport, storage and exploitation of mineral layers and fluids |
| 01/13/2005 | WO2005003506A2 Method of deploying and powering an electrically driven device in a well |
| 01/13/2005 | WO2004094761A3 Method for selectively positioning proppants in high contrast permeability formations to enhance hydrocarbon recovery |
| 01/13/2005 | WO2004079150A3 Full bore lined wellbores |
| 01/13/2005 | WO2004044368A3 Orientation system for a subsea well |
| 01/13/2005 | WO2004026500A3 Self-lubricating expansion mandrel for expandable tubular |
| 01/13/2005 | US20050006106 Hydraulic setting tool for liner hanger |