| 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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| 04/04/1995 | US5402848 Method and apparatus for conducting environmental procedures |
| 04/04/1995 | US5402847 Injecting carbon dioxide-containing exhaust gas into injection well extending into coal bed, recovering methane |
| 04/04/1995 | US5402846 Pumping foamable thermosetting mixture into reservoir to fracture formation, igniting and combusting mixture to form porous solid which props fracture and increases conductivity of reservoir |
| 04/04/1995 | CA1335035C Lightweight oil and gas well proppants and methods for making and using same |
| 03/31/1995 | CA2120797A1 Well completions with expandable casing portions |
| 03/29/1995 | EP0644979A1 Method and apparatus for inspecting subsurface environments |
| 03/29/1995 | CN1028052C Pump control system for downhole motor-pump assembly and method of using same |
| 03/29/1995 | CN1028045C Subsea template |
| 03/28/1995 | US5401139 Pumping system |
| 03/28/1995 | US5400858 Groundwater recovery system |
| 03/28/1995 | US5400856 Overpressured fracturing of deviated wells |
| 03/28/1995 | CA2068913C Down-hole concentric chamber gas separator |
| 03/28/1995 | CA2022592C Method of treating subterranean formations |
| 03/23/1995 | WO1995008045A1 Well filter with prepacked filter element |
| 03/23/1995 | WO1995008044A1 Subsea production manifold |
| 03/23/1995 | WO1995008043A1 Groundwater recovery system |
| 03/23/1995 | WO1995007773A1 Method and device for detecting soil pollution or cleaning up polluted soil in situ, respectively |
| 03/23/1995 | CA2171833A1 Method and device for detecting soil pollution or cleaning up polluted soil in situ, respectively |
| 03/22/1995 | EP0644316A2 Formation fracturing method |
| 03/22/1995 | EP0643795A1 Method of completing an uncased section of a borehole. |
| 03/22/1995 | EP0643794A1 Method of creating a wellbore in an underground formation. |
| 03/22/1995 | EP0643632A1 Process and device for extracting highly volatile contaminants from gas-permeable material |
| 03/22/1995 | EP0629141A4 Removing volatile organic compounds from groundwater. |
| 03/22/1995 | CN2192721Y Chain heavy hammer balance beam-pumping unit |
| 03/22/1995 | CA2132041A1 Process for removing and preventing near-wellbore damage due to asphaltene precipitation |
| 03/21/1995 | US5400430 Method for injection well stimulation |
| 03/21/1995 | US5398762 Compressor system in a subsea station for transporting a well stream |
| 03/21/1995 | US5398760 Methods of perforating a well using coiled tubing |
| 03/21/1995 | US5398757 Mono-well for soil sparging and soil vapor extraction |
| 03/21/1995 | CA1334814C Novolac coated ceramic particulate |
| 03/16/1995 | WO1995007414A1 System for pumping liquids using a jet pump |
| 03/15/1995 | EP0643196A2 Consolidatable particulate material and well treatment method |
| 03/15/1995 | CN2191921Y Cable conveying type full combustion explosive |
| 03/15/1995 | CN1100177A Jet-recoil type underground pipe cutter and method for exposing ore bed |
| 03/15/1995 | CN1027914C Combination fracturing and perforating charge |
| 03/14/1995 | US5397759 Hollow porous microspheres made from dispersed particle compositions |
| 03/14/1995 | US5396957 Well completions with expandable casing portions |
| 03/14/1995 | US5396955 Method to selectively affect permeability in a reservoir to control fluid flow |
| 03/14/1995 | US5396950 Apparatus and methods for horizontal completion of a water well |
| 03/10/1995 | CA2130365A1 Well jetting apparatus |
| 03/09/1995 | WO1995006799A1 A method and a control system for the production of fluid from a well |
| 03/09/1995 | DE4429136A1 Multi-level packer system (MLPS) for obtaining groundwater samples as well as physical, chemical and geophysical measured values from exactly defined depths |
| 03/08/1995 | EP0641916A2 Method and apparatus for drawing gas and/or liquid samples from different layers |
| 03/08/1995 | CN1099840A Oilpipe free suspension pump extracting method and device |
| 03/07/1995 | US5394942 Method for stimulation of liquid flow in a well |
| 03/07/1995 | US5394938 Gravel pack screen for well completions |
| 03/02/1995 | WO1995006093A1 Enhanced hydrocarbon recovery method |
| 03/02/1995 | DE4335574A1 Process for removing pollutant deposits in liquid, solid-liquid and solid, water-permeable surroundings |
| 03/01/1995 | EP0640742A2 Method and device for influencing a liquid present in the soil |
| 03/01/1995 | EP0640001A1 Linear contaminant remediation system. |
| 03/01/1995 | CN2190694Y Lock ring type oil leaking device |
| 03/01/1995 | CN1027769C Method of manufacturing a selective isolation screen |
| 02/28/1995 | US5393810 Method and composition for breaking crosslinked gels |
| 02/28/1995 | US5393202 Process and device for optimizing the transfer by pumping of multiphase effluents |
| 02/28/1995 | US5392860 Heat activated safety fuse |
| 02/28/1995 | US5392858 Milling apparatus and method for well casing |
| 02/28/1995 | US5392857 Apparatus and method for determining an optimum phase angle for phased charges in a perforating gun to maximize distances between perforations in a formation |
| 02/28/1995 | US5392854 Oil recovery process |
| 02/28/1995 | US5392850 To produce fluids from spaced apart zones in an earth formation |
| 02/28/1995 | CA2053335C Subsea production system and method for line connection between a manifold and adjacent satellite wells |
| 02/23/1995 | WO1995005522A1 Method and apparatus for setting hydraulic packers and for placing a gravel pack in a well |
| 02/22/1995 | EP0639240A1 Microencapsulated oil field chemicals and process for their use. |
| 02/22/1995 | EP0608238A4 Electro-vac decontamination process. |
| 02/22/1995 | CN2190157Y Bottom conical body for vortex sand remover |
| 02/21/1995 | US5391057 Compressing gas flowing through a conduit |
| 02/21/1995 | US5390966 Single connector for shunt conduits on well tool |
| 02/21/1995 | US5390743 Installation and method for the offshore exploitation of small fields |
| 02/21/1995 | US5390742 Internally sealable perforable nipple for downhole well applications |
| 02/21/1995 | US5390741 Remedial treatment methods for coal bed methane wells |
| 02/21/1995 | US5390740 Method and apparatus to recycle production well casing vapor |
| 02/21/1995 | CA1334483C Subsea guidebase |
| 02/16/1995 | WO1995004614A1 Ground fracturing probe |
| 02/15/1995 | EP0638372A1 Device for injecting gases in the ground |
| 02/14/1995 | US5389267 In-situ vapor stripping for removing volatile organic compounds from groundwater |
| 02/14/1995 | US5389242 Process for the fractionation of oil and gas on a petroleum deposit effluent |
| 02/14/1995 | US5388650 Non-cryogenic production of nitrogen for on-site injection in downhole drilling |
| 02/14/1995 | US5388645 Separating oxygen-containing gas into oxygen-enriched and oxyg oxygen-depleted streams, injecting oxygen-depleted stream into solid carbonaceous subterranean formation |
| 02/14/1995 | US5388644 Flooding in oil-bearing formation through an injection well a miscible fooding solvent from liquid natural gas and liquid carbon dioxide containing amide; enhanced oil recovery |
| 02/14/1995 | US5388643 Coalbed methane recovery using pressure swing adsorption separation |
| 02/14/1995 | US5388642 Coalbed methane recovery using membrane separation of oxygen from air |
| 02/14/1995 | US5388641 Method for reducing the inert gas fraction in methane-containing gaseous mixtures obtained from underground formations |
| 02/14/1995 | US5388640 Method for producing methane-containing gaseous mixtures |
| 02/14/1995 | US5388639 Wellhead tubing rotator |
| 02/14/1995 | CA1334377C Oil recovery system and method of using same |
| 02/09/1995 | WO1995004253A1 Programmable electronic time delay initiator |
| 02/09/1995 | WO1995004237A1 Perforated fiber reinforced pipe |
| 02/09/1995 | WO1995004116A1 Method for stabilising crude oils at the outlet of a well, and device therefor |
| 02/09/1995 | WO1995003870A1 Backflush filter system for downhole pumps |
| 02/09/1995 | CA2168642A1 Programmable electronic time delay initiator |
| 02/08/1995 | EP0637569A1 Method and device for influencing liquid in ground |
| 02/08/1995 | EP0604427A4 Electromagnetic method and apparatus for the decontamination of hazardous material-containing volumes. |
| 02/08/1995 | CN2189202Y Multi-function ball controlling device |
| 02/08/1995 | CN2189201Y Numerically controlled oil pumping machine with classification hauling belt |
| 02/08/1995 | CN1027602C Numerical control oil well measuring station valve group |
| 02/07/1995 | US5386875 Method for controlling sand production of relatively unconsolidated formations |
| 02/07/1995 | US5386780 Method and apparatus for extended time delay of the detonation of a downhole explosive assembly |
| 02/07/1995 | CA2083473C Method and apparatus for solution mining |
| 02/07/1995 | CA2058812C Transporting mobility control agents to high permeability zones |
| 02/07/1995 | CA2031814C Method of recovering hydrocarbons using single well injection/production system |
| 02/07/1995 | CA2017640C Well completions |