| 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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| 11/03/2004 | CN2653125Y Composite perforating device of gun inner loading tubular gunpowder for oil-gas well |
| 11/03/2004 | CN2653124Y Hydraulic force increasing and reducing balance weight mechanism for beam oil pumping unit |
| 11/03/2004 | CN2653123Y Swing rod variable torque beam energy saving oil pumping unit |
| 11/03/2004 | CN2653122Y Anti-slip combined driving belt special for oil pumping unit |
| 11/03/2004 | CN1543054A Motor control device of pumping unit and lead-screw driving type pumping unit using the same |
| 11/03/2004 | CN1542256A Single-phase multi-drive pumping unit |
| 11/02/2004 | USRE38642 Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical cased oil wells connected to liner-equipped multiple drainholes |
| 11/02/2004 | US6811713 Fluid flow through cyclone filter and distribution channel formed between ring and cylindrical chamber; flowing through pluralit of grooves in the ring; spiraling down a downward annulus |
| 11/02/2004 | US6811709 Method and apparatus for mixing fluids, separating fluids, and separating solids from fluids |
| 11/02/2004 | US6811699 Method and apparatus for mixing fluids, separating fluids, and separating solids from fluids |
| 11/02/2004 | US6811690 Method and apparatus for mixing fluids, separating fluids, and separating solids from fluids |
| 11/02/2004 | US6811382 Integrated pumping system for use in pumping a variety of fluids |
| 11/02/2004 | US6810961 Fluid well pumping system |
| 11/02/2004 | US6810960 Methods for increasing production from a wellbore |
| 11/02/2004 | US6810957 Antimicrobial with limited diffusion properties due to a low solubility, such as for instance a polymeric amine, can be utilized within the well bore to minimize diffusion into the surrounding geological structures |
| 11/02/2004 | US6810955 Gas lift mandrel |
| 11/02/2004 | US6810953 Shock absorber for oil well pumping unit |
| 11/02/2004 | US6810719 Multiphase flow measurement system |
| 11/02/2004 | CA2466014A1 Treatment of crude oil from a well including extraction of particulates therefrom |
| 11/02/2004 | CA2465942A1 Perforating gun |
| 11/02/2004 | CA2342775C Method of packing extended reach horizontal wells with lightweight proppants |
| 11/02/2004 | CA2320576C Method and apparatus for communication with a downhole tool |
| 11/02/2004 | CA2275487C Method for drying out rock containing immobile formation water within the encroachment area of natural gas deposits and gas reservoirs |
| 11/02/2004 | CA2226985C Computer controlled gas lift system |
| 11/02/2004 | CA2105722C Procedure and production pipe for production of oil or gas from an oil or gas reservoir |
| 10/28/2004 | WO2004092540A1 Mapping fracture dimensions |
| 10/28/2004 | WO2004092539A1 Improved pump drive head with integrated stuffing box and clamp |
| 10/28/2004 | WO2004092538A1 Improved pump drive head with integrated stuffing box |
| 10/28/2004 | WO2004092537A1 Mandrel for a gas lift valve |
| 10/28/2004 | WO2004092536A1 System for expanding a tubular element in a wellbore |
| 10/28/2004 | WO2004092530A2 Radially expanding casing and driling a wellbore |
| 10/28/2004 | WO2004092528A2 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/28/2004 | WO2004092527A2 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/28/2004 | WO2004065917A3 Multi-lateral well with downhole gravity separation |
| 10/28/2004 | WO2004046589A3 Well stuffing box packing |
| 10/28/2004 | WO2003089752B1 Well completion with merged influx of well fluids |
| 10/28/2004 | US20040214728 Mixture with gelling agent comprising a polyvalent metal salt of an organophosphonic acid ester or a polyvalent metal salt of an organophosphinic acid; sand control treatments like fracturing and gravel packing |
| 10/28/2004 | US20040214726 Glycol; filtration, heating; well completion |
| 10/28/2004 | US20040211570 Expanded liner system and method |
| 10/28/2004 | US20040211569 Installation and use of removable heaters in a hydrocarbon containing formation |
| 10/28/2004 | US20040211567 Method for increasing fracture penetration into target formation |
| 10/28/2004 | US20040211565 Method for using a well perforating gun |
| 10/28/2004 | US20040211561 agglomeration of particles having curable coatings, by the pumping mixtures of the particles and liquid fracturing fluid into subterranean zones, then curing the coatings with heat; stabiliztion; well completion |
| 10/28/2004 | US20040211560 Gravel packing method using vibration and hydraulic fracturing |
| 10/28/2004 | US20040211559 Methods and apparatus for completing unconsolidated lateral well bores |
| 10/28/2004 | US20040211558 Hydraulic fracturing method |
| 10/28/2004 | US20040211557 Conductor-in-conduit heat sources for in situ thermal processing of an oil shale formation |
| 10/28/2004 | US20040211556 Packoff subassembly |
| 10/28/2004 | US20040211554 Heat sources with conductive material for in situ thermal processing of an oil shale formation |
| 10/28/2004 | CA2523779A1 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/28/2004 | CA2523654A1 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/28/2004 | CA2522546A1 Radially expanding casing and drilling a wellbore |
| 10/28/2004 | CA2522257A1 Improved pump drive head with integrated stuffing box and clamp |
| 10/28/2004 | CA2521528A1 System for expanding a tubular element in a wellbore |
| 10/28/2004 | CA2426607A1 Well stimulation fluid and well stimulation fluid recycling process |
| 10/27/2004 | EP1471208A2 Two-part connector for fluid carrying conduit |
| 10/27/2004 | CN2651516Y Transmission belt tension adjuster of oil sucker |
| 10/27/2004 | CN2651491Y Electric immersed spray oil producing pump |
| 10/27/2004 | CN2651479Y Integral mechanically sealed solid-liquid pump |
| 10/27/2004 | CN2651468Y Pump valve with elastic switch |
| 10/27/2004 | CN2651444Y Combined heat, electric power and gas producing apparatus in oil field |
| 10/27/2004 | CN2651443Y Layer sandroof extracting process tubular column |
| 10/27/2004 | CN2651442Y Top shifting style intellectual beamless oil sucker |
| 10/27/2004 | CN2651430Y Hanging packer of layered sandproof and sand filtering pipe |
| 10/27/2004 | CN2651429Y Compensative hot producing packer |
| 10/27/2004 | CN2651421Y Tail pipe prestressed well completion device |
| 10/27/2004 | CN1540137A Combined typed method of edge-water encroachment of microbe |
| 10/27/2004 | CN1540136A Method for estimating capability of edge-water encroachment of microbe |
| 10/27/2004 | CN1540135A Gear worm type oil pumping unit |
| 10/27/2004 | CN1540134A Energy saving oil pumping unit |
| 10/27/2004 | CN1540133A Gear power transmission type oil pumping unit |
| 10/27/2004 | CN1540132A Method for manufacturing balanced weight body of oil pumping unit |
| 10/26/2004 | USRE38636 Downhole equipment, tools and assembly procedures for the drilling, tie-in and completion of vertical oil wells connected to liner-equipped multiple drainholes |
| 10/26/2004 | US6808693 Purifying exhaust gases before injection into well; fuel gas generator for extracting natural gas from the crude oil under production |
| 10/26/2004 | US6808632 Purification of aquifers that does not require the withdrawal and above-ground treatment and discharge of fluids. |
| 10/26/2004 | US6808022 Latch profile installation in existing casing |
| 10/26/2004 | CA2117189C Drive system for turning a swivel |
| 10/21/2004 | WO2004090284A1 A method and apparatus for treatment of water for an injection well |
| 10/21/2004 | WO2004090283A1 Apparatus and method for enhancing productivity of natural gas wells |
| 10/21/2004 | WO2004090281A1 Methods and compositions for stabilizing unconsolidated subterranean formations |
| 10/21/2004 | WO2004089608A2 Apparatus for radially expanding and plastically deforming a tubular member |
| 10/21/2004 | WO2004074629B1 Sub-sea compressor |
| 10/21/2004 | WO2004026500A9 Self-lubricating expansion mandrel for expandable tubular |
| 10/21/2004 | WO2003036012A9 Apparatus and method to expand casing |
| 10/21/2004 | WO2003036012A3 Apparatus and method to expand casing |
| 10/21/2004 | US20040210396 Methods and structure for automated active pharmaceuticals development |
| 10/21/2004 | US20040209780 well completion by injecting fluid mixtures comprising water, anionic or cationic polymers and surfactants, and optionally thickeners, propping and/or foaming agents |
| 10/21/2004 | US20040206548 Active controlled bottomhole pressure system & method |
| 10/21/2004 | US20040206512 Strippable collapsed well liner |
| 10/21/2004 | US20040206509 Casing wear band and method of attachment |
| 10/21/2004 | US20040206506 Method for enhancing well productivity |
| 10/21/2004 | US20040206505 Laser wellbore completion apparatus and method |
| 10/21/2004 | US20040206504 System and method for fracturing a hydrocarbon producing formation |
| 10/21/2004 | US20040206503 Casing conveyed well perforating apparatus and method |
| 10/21/2004 | US20040206499 Methods of reducing or preventing particulate flow-back in wells |
| 10/21/2004 | US20040206497 Method for selectively positioning proppants in high contrast permeability formations to enhance hydrocarbon recovery |
| 10/21/2004 | US20040206495 Mitigating risk by using fracture mapping to alter formation fracturing process |
| 10/21/2004 | US20040206494 Fracture monitoring using pressure-frequency analysis |
| 10/21/2004 | US20040206493 Slot cavity |
| 10/21/2004 | CA2523500A1 Apparatus for radially expanding and plastically deforming a tubular member |