| 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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| 06/23/2004 | EP1431512A2 Downhole removal of particulates from produced fluids |
| 06/23/2004 | EP1431257A2 Permeable cement composition |
| 06/23/2004 | EP1430200A1 Wellbore system for simultaneous drilling and production |
| 06/23/2004 | EP1087822A4 A method for remediating a medium |
| 06/23/2004 | CN2621219Y Automatic controller for oil production and gas distribution |
| 06/23/2004 | CN2621218Y Beam-bumping unit balancing weight safety safeguard |
| 06/23/2004 | CN1507531A Method for pumping fluids |
| 06/23/2004 | CN1507530A Crude oil recovery system |
| 06/23/2004 | CN1507529A Electrical well heating system and method |
| 06/23/2004 | CN1507528A In-situ combustion for oil recovery |
| 06/23/2004 | CN1506559A Vertical tube-gear rack type pumping unit |
| 06/22/2004 | US6752860 Apparatus for separation of a fluid flow, especially into a gas phase and a liquid phase |
| 06/22/2004 | US6752216 Expandable packer, and method for seating an expandable packer |
| 06/22/2004 | US6752215 Method and apparatus for expanding and separating tubulars in a wellbore |
| 06/22/2004 | US6752214 Extended reach tie-back system |
| 06/22/2004 | US6752211 Method and apparatus for multilateral junction |
| 06/22/2004 | US6752210 In situ thermal processing of a coal formation using heat sources positioned within open wellbores |
| 06/22/2004 | US6752208 Methods of reducing proppant flowback |
| 06/22/2004 | US6752207 Apparatus and method for alternate path system |
| 06/22/2004 | US6752206 Sand control method and apparatus |
| 06/22/2004 | US6752083 Detonators for use with explosive devices |
| 06/22/2004 | CA2210587C Reinforced elastomeric bag for use with electric submergible motor protectors |
| 06/22/2004 | CA2198984C Shaped charge for a perforating gun having a main body of explosive including tatb and a sensitive primer |
| 06/17/2004 | WO2004051129A2 Expandable composite tubulars |
| 06/17/2004 | WO2004026073A3 Rotating mandrel for expandable tubular casing |
| 06/17/2004 | US20040113428 Expandable connection |
| 06/17/2004 | US20040112646 Steel; rotation drilling; in situ cementing casing |
| 06/17/2004 | US20040112610 Expansion assembly for a tubular expander tool, and method of tubular expansion |
| 06/17/2004 | US20040112609 Reinforced swelling elastomer seal element on expandable tubular |
| 06/17/2004 | US20040112607 Devices and methods for extraction, transportation and/or release of material |
| 06/17/2004 | US20040112606 Mono-trip cement thru completion |
| 06/17/2004 | US20040112605 Downhole systems and methods for removing particulate matter from produced fluids |
| 06/17/2004 | US20040112599 Cement through side pocket mandrel |
| 06/17/2004 | US20040112598 Permeable cement composition and method for preparing the same |
| 06/17/2004 | US20040112591 Anchor device to relieve tension from the rope socket prior to perforating a well |
| 06/17/2004 | US20040112589 Mono-diameter wellbore casing |
| 06/17/2004 | US20040112586 Wellhead hydraulic drive unit |
| 06/17/2004 | CA2451827A1 Downhole systems and methods for removing particulate matter from produced fluids |
| 06/17/2004 | CA2451747A1 Permeable cement composition and method for preparing the same |
| 06/16/2004 | EP1428974A2 Expandable wellbore junction |
| 06/16/2004 | CN2620778Y Piston rod for petroleum well-drilling slurry pump |
| 06/16/2004 | CN2620775Y High pressure flushing pump |
| 06/16/2004 | CN2620760Y Oil pumping device capable of automatic rotating of sucker rod and oil pipe |
| 06/16/2004 | CN1505728A Well provided with flexible production tubing |
| 06/15/2004 | US6749026 Method of forming downhole tubular string connections |
| 06/15/2004 | US6749025 Lightweight methods and compositions for sand control |
| 06/15/2004 | US6749024 Sand screen and method of filtering |
| 06/15/2004 | US6749023 Methods and apparatus for gravel packing, fracturing or frac packing wells |
| 06/15/2004 | US6749021 Pyrolysis |
| 06/15/2004 | US6749017 Full automatic machine for oil extraction |
| 06/15/2004 | US6748843 Unique phasings and firing sequences for perforating guns |
| 06/10/2004 | WO2004048751A1 Methods and apparatus for swabbing a well |
| 06/10/2004 | WO2004048750A2 Method of installing a tubular assembly in a wellbore |
| 06/10/2004 | WO2004048748A1 Downhole safety valve for central circulation completion system |
| 06/10/2004 | WO2004027786A9 Protective sleeve for expandable tubulars |
| 06/10/2004 | WO2004003331A3 Non-corrosive amphoteric surfactants and method of well treatment |
| 06/10/2004 | WO2003016669A3 Apparatus for radially expanding tubular members including a segmented expansion cone |
| 06/10/2004 | US20040108626 Expandable composite tubulars |
| 06/10/2004 | US20040108279 Device and method for creating at least one reaction zone in an aquifer |
| 06/10/2004 | US20040108140 Method and apparatus for drilling and completing a well with an expandable sand control system |
| 06/10/2004 | US20040108119 Wire lock expandable connection |
| 06/10/2004 | US20040108118 Fibre optic well control system |
| 06/10/2004 | US20040108116 Valves for use in wells |
| 06/10/2004 | US20040108114 Providing electrical isolation for a downhole device |
| 06/10/2004 | US20040108111 In situ thermal processing of a coal formation to increase a permeability/porosity of the formation |
| 06/10/2004 | US20040108110 Method and system for accessing subterranean deposits from the surface and tools therefor |
| 06/10/2004 | US20040108107 Controlled-pressure drop liner |
| 06/10/2004 | US20040107825 Well perforating gun |
| 06/10/2004 | CA2547529A1 Methods and apparatus for swabbing a well |
| 06/09/2004 | EP1425613A1 Downhole nmr processing |
| 06/09/2004 | EP1389259A4 Method for enhancing production allocation in an integrated reservoir and surface flow system |
| 06/09/2004 | CN2620087Y 定量配水器 Quantitative water distributor |
| 06/09/2004 | CN2620086Y Oil-gas well sand-proof perforating bullet |
| 06/09/2004 | CN2620085Y Anti-stripping crank pin assembly for beam-pumping unit |
| 06/09/2004 | CN2620084Y Sanding in prevention screw pump oil production equipment |
| 06/09/2004 | CN1502785A Oil-increasing pup joint |
| 06/09/2004 | CN1153001C Method for cleaning wall without backflow |
| 06/08/2004 | US6746213 Pad plunger assembly with concave pad subassembly |
| 06/08/2004 | US6745855 Method and system for hydraulic friction controlled drilling and completing geopressured wells utilizing concentric drill strings |
| 06/08/2004 | US6745846 Expandable downhole tubing |
| 06/08/2004 | US6745845 Isolation of subterranean zones |
| 06/08/2004 | US6745843 Base-pipe flow control mechanism |
| 06/08/2004 | US6745841 Tube manufacture |
| 06/08/2004 | US6745837 In situ thermal processing of a hydrocarbon containing formation using a controlled heating rate |
| 06/08/2004 | US6745834 Complete trip system |
| 06/08/2004 | US6745832 Situ thermal processing of a hydrocarbon containing formation to control product composition |
| 06/08/2004 | US6745831 Mixture of hydrocarbons, h2, and/or other formation fluids may be produced from the formation. heat may be applied to the formation to raise a temperature of a portion of the formation to a pyrolysis temperature. |
| 06/08/2004 | US6745815 Method and apparatus for producing an oil, water, and/or gas well |
| 06/08/2004 | CA2380311C Fluids containing viscoelastic surfactant and methods for using the same |
| 06/08/2004 | CA2086298C Process and device for optimizing the transfer through pumping of multiphase effluents |
| 06/08/2004 | CA2086297C Process for optimizing the control and the modulation of a multiphase flow and device thus obtained |
| 06/03/2004 | WO2004046589A2 Well stuffing box packing |
| 06/03/2004 | WO2004046504A1 Well treating process and system |
| 06/03/2004 | WO2004046503A1 Optimizing well system models |
| 06/03/2004 | WO2004046495A2 Method of treating subterranean formations to enchance hydrocaronproduction using proppants |
| 06/03/2004 | WO2004046494A2 Method using particulate chelates to stimulate production of petroleum in carbonate formations |
| 06/03/2004 | WO2004028656A9 System and method for material removal |
| 06/03/2004 | WO2004020895B1 Method of manufacturing an insulated pipeline |
| 06/03/2004 | WO2004018839A3 Fluid flow control device and method for use of same |
| 06/03/2004 | WO2003076763A9 Method and apparatus for one trip tubular expansion |