Patents
Sitemap › E21 - Earth or rock drilling; Mining › E21B - Earth or rock drilling; Obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells › E21B 43 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
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)
07/2003
07/01/2003US6585053 Method for creating a polished bore receptacle
07/01/2003US6585050 System and process for reducing the flowing bottom hole pressure in a natural gas well
07/01/2003US6585049 Dual displacement pumping system suitable for fluid production from a well
07/01/2003US6585048 Wellbore system having non-return valve
07/01/2003US6585041 Virtual sensors to provide expanded downhole instrumentation for electrical submersible pumps (ESPs)
06/2003
06/26/2003WO2003052278A1 Device for the transformation of gas/liquid slug flow to laminar flow
06/26/2003WO2003052238A1 A drilling method for maintaining productivity while eliminating perforating and gravel packing
06/26/2003WO2003051546A2 Soil remediation well positioning in relation to curved obstructions
06/26/2003US20030117890 Manifold for mixing device
06/26/2003US20030116353 Shot direction indicating device
06/26/2003US20030116325 Liner hanger with standoffs
06/26/2003US20030116324 Installation of evacuated tubular conduits
06/26/2003US20030116323 System for, and a method of pumping fluids from a well
06/26/2003US20030116319 Using polymer; well completion
06/26/2003US20030116318 Downhole apparatus
06/26/2003US20030116316 Apparatus and method for downhole fluid separation
06/26/2003US20030116315 In situ thermal processing of a relatively permeable formation
06/26/2003CA2471261A1 A drilling method for maintaining productivity while eliminating perforating and gravel packing
06/25/2003EP1320659A1 Method and system for wireless communications for downhole applications
06/25/2003EP0920571B1 Swivel
06/25/2003EP0842391B1 Method and apparatus for controlled small-charge blasting of hard rock and concrete by explosive pressurization of the bottom of a drill hole
06/25/2003EP0819207B1 Method for improved water well production
06/25/2003CN2557695Y Constant current water injection well choke
06/25/2003CN2557694Y Explosion transmission pipe for well perforating
06/25/2003CN2557693Y Gas combustion ultra-positive pressure perforating device
06/25/2003CN1426506A Mineral acid enhanced thermal treatment for viscosity reduction of oils (ECB-0002)
06/25/2003CN1425848A Underground coal gasifying process
06/25/2003CN1425847A Method and device for acid exciting of underwell structure layer
06/25/2003CN1425846A Acid exciting of underwell structure layer
06/25/2003CN1425845A Derictly driven hoisting sheave oil pump unit
06/25/2003CN1112503C Method for recovering gas using ultrasonic water draining
06/24/2003US6582819 Low density composite proppant, filtration media, gravel packing media, and sports field media, and methods for making and using same
06/24/2003US6582671 Method for reducing oxygen content in a boiler exhaust gas
06/24/2003US6581689 Screen assembly and method for gravel packing an interval of a wellbore
06/24/2003US6581688 Method of packing extended reach horizontal wells
06/24/2003US6581684 In Situ thermal processing of a hydrocarbon containing formation to produce sulfur containing formation fluids
06/24/2003US6581683 Water well filter apparatus
06/24/2003US6581455 Modified formation testing apparatus with borehole grippers and method of formation testing
06/19/2003WO2003050386A1 Expandable locking thread joint
06/19/2003WO2003050385A2 Method and apparatus for completing a well
06/19/2003WO2003050377A2 Method for recovery of hydrocarbons from low pressure formations
06/19/2003WO2003027431A3 Method and materials for hydraulic fracturing of wells
06/19/2003US20030111234 Technique for expanding tubular structures
06/19/2003US20030111231 Double bellows gas lift valve "faustoval"
06/19/2003US20030111230 Gas dissipation chamber for through tubing conveyed ESP pumping systems
06/19/2003US20030111224 Apparatus and method for gravel packing a horizontal open hole production interval
06/19/2003US20030111223 Control the heat exchanging, pyrolyzing hydrocarbons, enhancing oil recovery
06/19/2003US20030110794 Soil remediation well positioning in relation to curved obstructions
06/19/2003CA2365768A1 Apparatus for disabling a reciprocating pump jack during servicing
06/18/2003EP1319799A1 Method and apparatus for completing a well
06/18/2003EP1319638A1 Permeable cement for wells
06/18/2003EP1319116A1 Evaluation of multilayer reservoirs
06/18/2003EP0929732B1 High density perforating gun system
06/18/2003CN2556364Y Downhole oil-water separating device for continuous oil feeding oil well pump
06/18/2003CN2556363Y Intelligent oil production controller
06/18/2003CN2556362Y Improved energy-saving pumping unit
06/18/2003CN2556361Y Oil well monitoring management device
06/18/2003CN2556360Y Planet-gear reversing long-stroke pumping unit
06/18/2003CN1425102A Ceramic components for high pressure oil wells
06/18/2003CN1424484A Method for driving crude oil out by microorgans in crude oil
06/18/2003CN1111438C Slide filter method and water well with laminated slide filter
06/17/2003US6579947 Forming a viscoelastic gel in an aqueous liquid; hydrophilic blocks of block copolymer made by hydrolyzing monomers such as lower alkyl acrylates; high temperature use
06/17/2003US6579069 Low-potential gas flares, with the simultaneous separation of heavy hydrocarbons from the gaseous hydrocarbon-containing mediums
06/17/2003US6578630 Apparatus and methods for expanding tubulars in a wellbore
06/12/2003WO2003048620A1 Subsea connection apparatus
06/12/2003WO2003048525A1 Method for formation pressure control while drilling
06/12/2003WO2003048523A1 Internally oriented perforating system
06/12/2003WO2003048522A2 Severe dog leg swivel for tubing conveyed perforating
06/12/2003WO2003048521A2 Method for joining tubulars by expansion
06/12/2003WO2003048520A1 Method and apparatus for expanding and separating tubulars in a wellbore
06/12/2003WO2003048519A1 Expansion set liner hanger and method of setting same
06/12/2003WO2003048518A2 Apparatus and method for horizontal subsea connection
06/12/2003WO2003048516A1 Pilot valve
06/12/2003WO2003048515A1 Resilient cement
06/12/2003WO2003048514A1 Methods and compositions for sealing an expandable tubular in a wellbore
06/12/2003WO2003048513A1 Method for terminating or reducing water flow in a subterranean formation
06/12/2003WO2003048503A1 Tubing expansion
06/12/2003US20030107217 Sealant for expandable connection
06/12/2003US20030107213 Expandable locking thread joint
06/12/2003US20030106698 Apparatus and methods for separating and joining tubulars in a wellbore
06/12/2003US20030106697 Apparatus and methods for utilizing expandable sand screen in wellbores
06/12/2003US20030106696 Method and apparatus for expanding and separating tubulars in a wellbore
06/12/2003US20030106689 Method of frac packing through existing gravel packed screens
06/12/2003US20030106688 Casing while drilling
06/12/2003US20030106687 Biocide impregnation of coatings for ESP components
06/12/2003US20030106686 Method of recovery of hydrocarbons from low pressure formations
06/12/2003US20030106618 Expandable locking thread joint
06/12/2003CA2468940A1 Resilient cement
06/12/2003CA2468732A1 Method for formation pressure control while drilling
06/11/2003EP1318270A1 Well completion
06/11/2003EP1173655A4 Ribbed sealing element and method of use
06/11/2003EP1062405B1 Extraction of fluids from wells
06/11/2003EP0968351B1 Expandable slotted tubing string and method for connecting such a tubing string
06/11/2003CN2555495Y Safety automatic monitor for mine derrick
06/11/2003CN2555433Y Mobile well dynamic sealing device
06/11/2003CN2555430Y Hydraulic screw pump driving gear
06/11/2003CN2555429Y Horizontal wide V-shape belt mechanical stepless speed governing driving gear for screw pump
06/11/2003CN2555427Y Through hollow rotor screw pump
06/11/2003CN2555423Y Sucktion balance regulatable reciprocating booster pump
06/11/2003CN2555422Y Electric oil submerged plunger pump
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