| 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) |
|---|
| 08/15/1996 | WO1996024746A1 Method for improved water well production |
| 08/15/1996 | WO1996024745A2 Computer controlled downhole tools for production well control |
| 08/15/1996 | CA2187423A1 An acoustic transmisson system |
| 08/15/1996 | CA2167762A1 Non-entry mining method equipment |
| 08/14/1996 | EP0726454A2 Pumping system |
| 08/14/1996 | CN2232978Y Oil well pressure-reducing and water mixing device |
| 08/14/1996 | CN1129026A Method for increasing methane recovery rate from prodn. well coal seam |
| 08/14/1996 | CN1032553C Numerical control power equipment of beam type oil pumping machine |
| 08/14/1996 | CN1032552C Gas pressure regenerating type beam unit for thick oil |
| 08/13/1996 | US5544711 Multiphased through tubing stripgun |
| 08/13/1996 | US5544672 Method for mitigating the flow of liquid slugs |
| 08/13/1996 | CA2094449C Recovery of natural gases from underground coal formations |
| 08/08/1996 | WO1996023953A1 Multiple drain drilling and production apparatus |
| 08/08/1996 | WO1996023587A1 Method for recycling glass and its uses |
| 08/08/1996 | CA2210852A1 Multiple drain drilling and production apparatus |
| 08/07/1996 | EP0725206A2 Method of fracturing high permeability subterranean formations |
| 08/07/1996 | CN2232483Y Acidification negative pressure steering apparatus |
| 08/06/1996 | US5542480 Perforating gun with retrievable mounting strips |
| 08/06/1996 | US5542474 Injecting surfactant-polypeptide mixture |
| 08/06/1996 | CA2096764C Blocking water coning in oil and gas producing reservoirs |
| 08/01/1996 | WO1996023341A1 Electrical connections to encased electronic devices |
| 08/01/1996 | WO1996023192A1 Well pipe perforating gun |
| 08/01/1996 | WO1996023181A1 Hole in the ground for transfer of geothermal energy to an energy-carrying liquid and a method for production of the hole |
| 07/31/1996 | EP0724065A2 Tubing actuated valve assembly and method of placing a tubing into a borehole |
| 07/31/1996 | EP0723623A1 Horizontal natural gas storage caverns and methods for producing same |
| 07/31/1996 | CN2232075Y Gasifier for LPG |
| 07/31/1996 | CN2232074Y Double cylinder type hydraulic pumping unit |
| 07/31/1996 | CA2168311A1 Well completion system with well control valve |
| 07/30/1996 | US5540293 For initiating operation of a subsurface well tool |
| 07/30/1996 | US5540283 Well pumping |
| 07/30/1996 | US5540282 Apparatus and method for completing/recompleting production wells |
| 07/30/1996 | US5540281 Method and apparatus for testing noneruptive wells including a cavity pump and a drill stem test string |
| 07/30/1996 | CA2003438C Selective valve to pass fluids |
| 07/25/1996 | WO1996022452A1 Method of creating a casing in a borehole |
| 07/23/1996 | US5538081 Method of increasing the amount of hydrocarbons from an undeground reservoir |
| 07/21/1996 | CA2167666A1 Apparatus and method for snubbing tubing-conveyed perforating guns in and out of a well bore |
| 07/18/1996 | WO1996021799A1 Method for determining closure of a hydraulically induced in-situ fracture |
| 07/18/1996 | WO1996021797A1 Method and apparatus for production of subsea hydrocarbon formations |
| 07/18/1996 | WO1996021792A2 Riser assembly |
| 07/18/1996 | WO1996008635A3 Apparatus for the remote deployment of valves |
| 07/18/1996 | DE19500149A1 Repairing horizontally laid drain pipes |
| 07/18/1996 | CA2209306A1 Method for determining closure of a hydraulically induced in-situ fracture |
| 07/17/1996 | CN2231309Y Cable stop dog |
| 07/16/1996 | US5535828 Wellbore system with retrievable valve body |
| 07/16/1996 | US5535825 Heat controlled oil production system and method |
| 07/16/1996 | US5535824 Well tool for completing a well |
| 07/16/1996 | US5535769 Process for moving highly viscous petroleum products |
| 07/16/1996 | US5535767 Remotely actuated adjustable choke valve and method for using same |
| 07/11/1996 | WO1996021083A1 Method and device for casing a well, particularly an oil well bore or a pipe, using an in situ curable flexible tubular preform |
| 07/11/1996 | WO1996021082A1 Improved isolation system and gravel pack assembly and uses thereof |
| 07/10/1996 | EP0721051A2 Firing head actuation |
| 07/10/1996 | EP0721050A2 Sand control without requiring a gravel pack screen |
| 07/10/1996 | EP0674602A4 Removing vocs from groundwater. |
| 07/10/1996 | CN2230812Y Constant current clogging device |
| 07/10/1996 | CN2230811Y Screw rod pump oil collecting apparatus |
| 07/10/1996 | CN1126450A In-situ remediation of contaminated heterogeneous soils |
| 07/10/1996 | CN1032267C Disposal of insal tailings from soda ash manufacturing by slurrying and pumping into underground |
| 07/09/1996 | US5533876 Pump barrel seal assembly including seal/actuator element |
| 07/09/1996 | US5533573 Method for completing multi-lateral wells and maintaining selective re-entry into laterals |
| 07/09/1996 | US5533572 System and method for measuring corrosion in well tubing |
| 07/09/1996 | CA2086027C Method of manufacturing a selective isolation screen |
| 07/05/1996 | CA2166600A1 Firing head |
| 07/03/1996 | EP0719897A1 Method and device for measuring parameters of plastic ground |
| 07/03/1996 | EP0719187A1 In-situ process for remediating or enhancing permeability of contaminated soil |
| 07/03/1996 | EP0599832B1 Scale inhibition in oil producing wells |
| 07/03/1996 | CN1125814A High-energy gas pressing crack multipurpose generator device |
| 07/03/1996 | CN1125813A Process for the entraction of crude oil |
| 07/03/1996 | CN1125812A Roller-type top-driven digital-controlled beam-pumping unit |
| 07/02/1996 | US5531507 Method of removing a minable product from an underground seam and bottom hole tool |
| 07/02/1996 | US5531274 Method of fracturing a subsurface earth formation having a wellbore |
| 07/02/1996 | US5531273 Well completion tool and process |
| 07/02/1996 | US5531164 Select fire gun assembly and electronic module for underground jet perforating using resistive blasting caps |
| 07/02/1996 | CA2096034C Horizontal well gravity drainage combustion process for oil recovery |
| 06/27/1996 | WO1996019673A1 Downhole hydraulic pump apparatus having a 'free' jet pump and safety valve assembly and method |
| 06/26/1996 | EP0718464A1 Well treatment using particulate blends |
| 06/26/1996 | EP0717818A1 System for pumping liquids using a jet pump |
| 06/26/1996 | EP0717809A1 Subsea production manifold |
| 06/26/1996 | CN1125472A Acidising underground reservoirs |
| 06/26/1996 | CN1032156C Numerically controlled energy-saving well-pumping unit |
| 06/25/1996 | US5529127 Apparatus and method for snubbing tubing-conveyed perforating guns in and out of a well bore |
| 06/25/1996 | US5529124 Method for retarding water coning |
| 06/25/1996 | US5529123 Method for controlling fluid loss from wells into high conductivity earth formations |
| 06/25/1996 | US5529121 Process for recovery and separation of volatile and non-volatile and non-volatile compounds |
| 06/20/1996 | WO1996018801A1 Cryogenic coal bed gas well stimulation method |
| 06/19/1996 | CN2229511Y Beam-pumping unit |
| 06/19/1996 | CN2229473Y Piston of mud pump with changable sealing ring |
| 06/19/1996 | CN1124816A Numerically controlled oil recovering apparatus using residual well pressure |
| 06/19/1996 | CN1124815A Temporary plugging technique for injection distribution working construction of oil field |
| 06/19/1996 | CN1032079C Method of supplying gas to gas consumeng |
| 06/18/1996 | US5527457 Monitor well hydrocarbon absorber and solidifier |
| 06/18/1996 | US5526882 Subsea drilling and production template system |
| 06/18/1996 | US5526881 Preperforated coiled tubing |
| 06/18/1996 | US5526880 Method for multi-lateral completion and cementing the juncture with lateral wellbores |
| 06/18/1996 | US5526879 Introduction of particulate material into a borehole |
| 06/18/1996 | US5526839 Stable emulsion of viscous crude hydrocarbon in aqueous buffer solution and method for forming and transporting same |
| 06/18/1996 | CA2086040C Process for increasing near-wellbore permeability of porous formations |
| 06/18/1996 | CA2053377C Subsea production system |
| 06/17/1996 | CA2138346A1 Well treating methods and devices using particulate blends |
| 06/13/1996 | WO1996018023A1 Perforating gun with retrievable mounting strips |
| 06/13/1996 | WO1996018022A1 Filter for subterranean wells |