| 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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| 04/09/1996 | US5505134 Apparatus for detonating one or more explosive devices |
| 04/09/1996 | CA2086028C Method of manufacturing a selective isolation screen |
| 04/09/1996 | CA2072919C Process to increase petroleum recovery from petroleum reservoirs |
| 04/04/1996 | WO1996010123A1 Surface controlled reservoir analysis and management system |
| 04/04/1996 | WO1996009895A1 Treatment of particulate material |
| 04/03/1996 | EP0704599A1 Installation for oil well equipped with a downhole electrical pump |
| 04/03/1996 | EP0703830A1 Apparatus for downhole cyclone separation |
| 04/03/1996 | CN2223777Y Electric heating device for screw pump for obtg. oil |
| 04/02/1996 | US5504062 Injecting aqueous mixture containing calcium carbonate having graded particle sizes, nonionic scleroglucan type polysaccharide and a starch having its molecular weight increased by polymerization, enhanced oil recovery |
| 04/02/1996 | US5503473 Automatic cementing system for precisely obtaining a desired cement density |
| 04/02/1996 | US5503226 Process for recovering hydrocarbons by thermally assisted gravity segregation |
| 04/02/1996 | US5503225 System and method for monitoring the location of fractures in earth formations |
| 04/02/1996 | US5503224 Casing drive apparatus |
| 04/02/1996 | US5503031 Ground water sampling device |
| 04/02/1996 | CA2089316C System for monitoring oil well performance |
| 03/31/1996 | CA2159556A1 Well equipment with well-bottom electric pump |
| 03/28/1996 | WO1996009477A1 A 'free' coil tubing downhole jet pump apparatus and method |
| 03/27/1996 | EP0703348A2 Apparatus for use in connecting downhole perforating guns |
| 03/27/1996 | EP0703347A2 Well completion in poorly consolidated formations |
| 03/27/1996 | EP0702745A1 Non-cryogenic production of nitrogen for on-site injection in downhole drilling |
| 03/27/1996 | CN1031424C Process for pumping a multi-phase gas-liquid mixture by means of the use of a pump |
| 03/26/1996 | US5501580 Progressive cavity pump with flexible coupling |
| 03/26/1996 | US5501549 Pulling and connecting tool for subsea conduits |
| 03/26/1996 | US5501281 Torque-resistant, seal setting force-limited, hydraulically settable well packer structure and associated methods |
| 03/26/1996 | US5501279 Apparatus and method for removing production-inhibiting liquid from a wellbore |
| 03/26/1996 | US5501278 Method of achieving high production rates in wells with small diameter tubulars |
| 03/26/1996 | US5501275 Control of particulate flowback in subterranean wells |
| 03/26/1996 | US5501274 Thermoplastic particles, ribbons or flakes |
| 03/26/1996 | US5501273 Method for determining the reservoir properties of a solid carbonaceous subterranean formation |
| 03/26/1996 | CA2018951C Water-wetting treatment for reducing water coning in an oil reservoir |
| 03/21/1996 | WO1996008637A1 Method to enhance the production of oil from low permeability formations |
| 03/21/1996 | WO1996008635A2 Apparatus for the remote deployment of valves |
| 03/21/1996 | DE4433448A1 Removal of hydrocarbon or other light fluid from water in confined shaft |
| 03/20/1996 | EP0702156A1 Multiphase pumping system with control loop |
| 03/20/1996 | CN1118713A Stable emulsion of viscous crude hydrocarbon in aqueous buffer solution and method for forming and transportion same |
| 03/20/1996 | CN1031354C Chain type long stroke oil pumping machine |
| 03/20/1996 | CN1031335C Method and system for conducting offshore well operations |
| 03/19/1996 | US5500174 Method of manufacture of a prepacked resin bonded well liner |
| 03/19/1996 | US5499681 Centralizing liner hanger method and system for subterranean multilateral well drilling |
| 03/19/1996 | US5499680 Diverter, diverter retrieving and running tool and method for running and retrieving a diverter |
| 03/19/1996 | US5499679 Method of improving oil and gas well productivity |
| 03/19/1996 | US5499678 Coplanar angular jetting head for well perforating |
| 03/19/1996 | CA2083156C Preform device and processes for coating and/or lining a cylindrical volume |
| 03/14/1996 | WO1996007813A1 Gas lift flow control device |
| 03/14/1996 | WO1996007763A1 Method for removing alkaline sulfate scale |
| 03/13/1996 | EP0701045A2 Multilateral well drilling and completion method and apparatus |
| 03/13/1996 | EP0701044A2 Apparatus and method for hanging a downhole liner |
| 03/13/1996 | EP0553209B1 Sintered metal sand screen |
| 03/13/1996 | CN1118617A Application of N,N-dialkylamides to reduce precipitation of asphalt from crude oil |
| 03/12/1996 | US5498068 Non-entry mining method equipment |
| 03/12/1996 | US5497840 Process for completing a well |
| 03/12/1996 | US5497832 Dual action pumping system |
| 03/12/1996 | US5497831 Hydraulic fracturing from deviated wells |
| 03/12/1996 | US5497658 Method for fracturing a formation to control sand production |
| 03/07/1996 | EP0719187A4 In-situ process for remediating or enhancing permeability of contaminated soil |
| 03/06/1996 | EP0699818A2 Downhole tool hanger |
| 03/06/1996 | EP0699271A1 Sand screen structure |
| 03/06/1996 | EP0699270A1 Downhole gas-liquid separator for wells |
| 03/06/1996 | EP0699269A1 Method for placement of a scale inhibitor in a formation |
| 03/01/1996 | CA2157097A1 Bi-directional explosive transfer apparatus and method |
| 03/01/1996 | CA2154935A1 Through tubing gun hanger |
| 02/29/1996 | WO1996006263A1 Gas-lift system for removing liquid from gas wells |
| 02/29/1996 | WO1996006260A1 Template construction for drilling subsea wells for oil and gas |
| 02/29/1996 | DE4430297A1 Drilling method using flushing water |
| 02/29/1996 | CA2198030A1 Gas-lift system for removing liquid from gas wells |
| 02/28/1996 | EP0698136A1 Preform or matrix tubular structure for well casing |
| 02/28/1996 | CN1117556A Numerical control comprehensive oil extraction equipment |
| 02/28/1996 | CN1117555A Numerical control wind-power oil-pumping and water-injection combined equipment |
| 02/28/1996 | CN1031152C Soda ash production |
| 02/27/1996 | US5494118 Placement of pipes in the ground |
| 02/27/1996 | US5494110 Two-part connector for fluid carrying conduits |
| 02/27/1996 | US5494109 Backflush filter system for downhole pumps |
| 02/27/1996 | US5494108 Method for stimulating a coal seam to enhance the recovery of methane from the coal seam |
| 02/27/1996 | US5494106 Method for sealing between a lining and borehole, casing or pipeline |
| 02/27/1996 | US5494103 Well jetting apparatus |
| 02/27/1996 | US5494102 Downhole hydraulically operated fluid pump |
| 02/27/1996 | US5494067 Device for regulating and damping a multiphase flow |
| 02/27/1996 | CA2156983A1 Centralizing liner hanger method and system for subterranean multilateral well drilling |
| 02/26/1996 | CA2155704A1 Method for improving productivity of a well |
| 02/22/1996 | WO1996005409A1 Resilient spider for well installation |
| 02/20/1996 | US5492178 Well treating methods and devices using particulate blends |
| 02/20/1996 | US5492175 Method for determining closure of a hydraulically induced in-situ fracture |
| 02/15/1996 | WO1996004521A2 Apparatus and method for perforating and fracturing |
| 02/15/1996 | WO1996004464A1 Lightweight proppants and their use in hydraulic fracturing |
| 02/15/1996 | WO1996004463A1 Method of fracturing and propping a formation |
| 02/15/1996 | WO1996004457A1 Device and method for making a slot in an underground formation |
| 02/14/1996 | EP0696335A1 Acidising underground reservoirs |
| 02/14/1996 | CN2219958Y Energy-saving beam-pumping unit |
| 02/13/1996 | US5490563 Perforating gun actuator |
| 02/13/1996 | US5490562 Subsea flow enhancer |
| 02/08/1996 | WO1996003569A1 Coal bed methane recovery |
| 02/07/1996 | EP0695852A2 High proppant concentration/high CO2 ratio fracturing system |
| 02/07/1996 | EP0695392A1 Stimulation of coalbed methane production |
| 02/07/1996 | CN2219388Y Sucker rod |
| 02/06/1996 | US5488993 Artificial lift system |
| 02/06/1996 | US5488992 Spoolable flexible sliding sleeve |
| 02/06/1996 | US5488990 Apparatus and method for generating inert gas and heating injected gas |
| 02/01/1996 | WO1996002732A1 Control flask for polyphasic effluents and extraction assembly therefor |
| 02/01/1996 | WO1996002731A1 Well purging and sampling pump |
| 02/01/1996 | WO1996002614A1 Method of enriching the methane content of a mine gas |