| 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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| 05/13/2004 | WO2004040098A1 Telescoping centralizers for expandable tubulars |
| 05/13/2004 | WO2004040097A1 Gravel packing method using vibration and hydraulic fracturing |
| 05/13/2004 | WO2004040094A1 Re-entry in multilateral wellsbores |
| 05/13/2004 | WO2004007894A3 Apparatus and method for accelerating hydration of particulate polymer |
| 05/13/2004 | WO2003089161B1 Protective sleeve for threaded connections for expandable liner hanger |
| 05/13/2004 | WO2003032331A3 Radially expandable tubular connection |
| 05/13/2004 | WO2003029603A8 Wellbore system for simultaneous drilling and production |
| 05/13/2004 | WO2002061238A8 Method and system for accessing a subterranean zone from a limited surface area |
| 05/13/2004 | US20040091378 Mechanical bladder pump |
| 05/13/2004 | US20040090068 Method and apparatus for sealing radially expanded joints |
| 05/13/2004 | US20040089475 Non-rotating sensor assembly for measurement-while-drilling applications |
| 05/13/2004 | US20040089454 Apparatus comprising expandable bistable tubulars and methods for their use i wellbores |
| 05/13/2004 | US20040089452 Method and apparatus for acidizing a subterranean well formation for improving hydrocarbon production |
| 05/13/2004 | US20040089449 Controlling a pressure transient in a well |
| 05/12/2004 | EP1417395A1 Tertiary oil recovery combined with gas conversion process |
| 05/12/2004 | EP1094878A4 Sand resistant fluid swivel |
| 05/12/2004 | CN2615380Y Oil pump |
| 05/12/2004 | CN2615336Y Magnetized high-pressure unplugging filling water tubular column |
| 05/12/2004 | CN2615335Y External rotor type torque motor pumping unit |
| 05/12/2004 | CN2615334Y Auxiliary donkey head balance connecting rod beam-pumping unit |
| 05/12/2004 | CN2615333Y Swing arm vertical pumping unit |
| 05/11/2004 | US6733636 Water treatment method for heavy oil production |
| 05/11/2004 | US6732806 One trip expansion method and apparatus for use in a wellbore |
| 05/11/2004 | US6732802 Isolation bypass joint system and completion method for a multilateral well |
| 05/11/2004 | US6732801 Apparatus and method for completing a junction of plural wellbores |
| 05/11/2004 | US6732800 Perforating portion of interval length, performing consolidation treatment to zone of formation around perforations, pumping viscous fracturing fluid into formation through perforations to hydraulically fracture it |
| 05/11/2004 | US6732799 Apparatus for stimulating oil extraction by increasing oil well permeability using specialized explosive detonating cord |
| 05/11/2004 | US6732798 Controlling transient underbalance in a wellbore |
| 05/11/2004 | US6732796 Heating section of formation with heat sources to temperature allowing generation of synthesis gas, providing synthesis gas generating fluid to section, removing synthesis gas generated, repeating for second section, blending for desired ratio |
| 05/11/2004 | US6732795 Providing heat from one or more heat sources to at least one portion of formation; allowing heat to transfer from the one or more heat sources to a selected section of the formation; controlling the heat; producing a mixture from the formation |
| 05/11/2004 | US6732794 In situ thermal processing of a hydrocarbon containing formation to produce a mixture with a selected hydrogen content |
| 05/11/2004 | US6732792 Multi-well structure for accessing subterranean deposits |
| 05/11/2004 | CA2098266C Recovering hydrocarbons |
| 05/06/2004 | WO2004038175A1 Inhibiting wellbore deformation during in situ thermal processing of a hydrocarbon containing formation |
| 05/06/2004 | WO2004038174A2 Staged and/or patterned heating during in situ thermal processing of a hydrocarbon containing formation |
| 05/06/2004 | WO2004038173A1 Temperature limited heaters for heating subsurface formations or wellbores |
| 05/06/2004 | WO2004038164A2 Remediation treatment of sustained casing pressures (scp) in wells with top down surface injection of fluids and additives |
| 05/06/2004 | WO2004037376A1 Downhole gas/liquid separator system and method |
| 05/06/2004 | WO2004031529A3 Cementing through a side pocket mandrel |
| 05/06/2004 | WO2004009954A9 Method for completing injection wells |
| 05/06/2004 | US20040084385 Method and apparatus for mixing fluids, separating fluids, and separating solids from fluids |
| 05/06/2004 | US20040084188 Replaceable liner for metal lined composite risers in offshore applications |
| 05/06/2004 | US20040084187 Method and apparatus for cleaning a fractured interval between two packers |
| 05/06/2004 | US20040084186 Well treatment apparatus and method |
| 05/06/2004 | US20040084181 Method to solids-pack non-vertical wellbores |
| 05/06/2004 | US20040084178 Well production management and storage system controller |
| 05/06/2004 | US20040084177 Mesh screen apparatus and method of manufacture |
| 05/06/2004 | US20040084176 Apparatus comprising expandable bistable tubulars and methods for their use in wellbores |
| 05/06/2004 | EP1416118A1 Well treatment apparatus and method |
| 05/06/2004 | EP1181432B1 Method of creating a wellbore |
| 05/05/2004 | CN2614278Y Oil-well pump slag-proofing apparatus |
| 05/05/2004 | CN2614277Y Rotary motion oil-well pump |
| 05/05/2004 | CN2614269Y Antiscale antiseptic water distributing equipment |
| 05/05/2004 | CN2614268Y Anti-jam water distributing and blocking equipment |
| 05/05/2004 | CN2614267Y Oil well vacuation control device |
| 05/05/2004 | CN2614266Y Moment automatically changing movable balanced pumping unit |
| 05/05/2004 | CN2614265Y Pendulum type pumping unit |
| 05/04/2004 | US6730236 Method for separating liquids in a separation system having a flow coalescing apparatus and separation apparatus |
| 05/04/2004 | US6729409 Foamed nitrogen in liquid CO2 for fracturing |
| 05/04/2004 | US6729407 Method for removing gravel pack screens |
| 05/04/2004 | US6729404 Methods and compositions for consolidating proppant in subterranean fractures |
| 05/04/2004 | US6729401 Synthesis gas may be produced from the formation. synthesis gas may be used as a feed stream in an ammonia synthesis process. ammonia may be used as a feed stream in a urea synthesis process. |
| 05/04/2004 | US6729398 Methods of downhole testing subterranean formations and associated apparatus therefor |
| 05/04/2004 | US6729397 In situ thermal processing of a hydrocarbon containing formation with a selected vitrinite reflectance |
| 05/04/2004 | US6729396 In situ thermal processing of a coal formation to produce hydrocarbons having a selected carbon number range |
| 05/04/2004 | US6729395 In situ thermal processing of a hydrocarbon containing formation with a selected ratio of heat sources to production wells |
| 05/04/2004 | US6729394 Method of producing a communicating horizontal well network |
| 04/30/2004 | CA2444549A1 Well treatment apparatus and method |
| 04/29/2004 | WO2004036327A1 System for acquiring data from a facility and method |
| 04/29/2004 | WO2004035987A1 Methods of completing wells in unconsolidated formations |
| 04/29/2004 | WO2004035986A1 Annulus pressure control system for subsea wells |
| 04/29/2004 | WO2004035375A1 Riser installation vessel and method of using the same |
| 04/29/2004 | WO2004005665A3 Dovetail thread coupling for expandable tubulars |
| 04/29/2004 | WO2004003327A3 Helically wound insert for expandable tubulars |
| 04/29/2004 | WO2003064804A3 Shallow water riser system |
| 04/29/2004 | WO2003033868A8 Single well development system |
| 04/29/2004 | US20040082484 Aqueous thickener containing amphoteric surfactants and/or zwitterionic surfactants and organic acids or salts and/or inorganic salts |
| 04/29/2004 | US20040081578 Biocide impregnation of coatings for ESP components |
| 04/29/2004 | US20040079910 Gate valve with flow-through gate |
| 04/29/2004 | US20040079535 Telescoping centralizers for expandable tubulars |
| 04/29/2004 | US20040079534 Expandable tubulars |
| 04/29/2004 | US20040079530 Method for, and the construction of, a long-distance well for the production, transport, storage and exploitation of mineral layers and fluids |
| 04/29/2004 | US20040079528 Tubing anchor |
| 04/29/2004 | US20040079524 Toroidal choke inductor for wireless communication and control |
| 04/28/2004 | EP1413709A2 Down hole filter |
| 04/28/2004 | EP1412615A1 In-situ evaporation |
| 04/28/2004 | EP0847464B1 Method of effecting fluid flow in porous materials |
| 04/28/2004 | CN2613587Y Notch slide type explosion conduction connector without explosion conduction pipe for perforating |
| 04/28/2004 | CN2613586Y Oil pipe self-gravity delay multi-function detonating exitation device |
| 04/28/2004 | CN1492803A Composite proppant, filtration medium, gravel packing media, and sports field media, and methods for making and using same |
| 04/27/2004 | US6727705 Subsurface monitoring and borehole placement using a modified tubular equipped with tilted or transverse magnetic dipoles |
| 04/27/2004 | US6727696 Downhole NMR processing |
| 04/27/2004 | US6725939 Expandable centralizer for downhole tubulars |
| 04/27/2004 | US6725936 Method for drilling a plurality of offshore underwater wells |
| 04/27/2004 | US6725934 Expandable packer isolation system |
| 04/27/2004 | US6725933 Method and apparatus for acidizing a subterranean well formation for improving hydrocarbon production |
| 04/27/2004 | US6725931 Methods of consolidating proppant and controlling fines in wells |
| 04/27/2004 | US6725930 Conductive proppant and method of hydraulic fracturing using the same |
| 04/27/2004 | US6725929 Circulation tool for use in gravel packing of wellbores |
| 04/27/2004 | US6725928 In situ thermal processing of a coal formation using a distributed combustor |