| Patents for C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations (31,745) |
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| 06/22/2000 | WO2000035957A1 Anionic cellulose ethers having temperature-dependent associative properties |
| 06/22/2000 | WO2000035926A1 1-hydroxy-3-sulfonoalkane-1,1-diphosphonous acids |
| 06/22/2000 | CA2355200A1 Methods and compositions for reducing the permeabilities of subterranean zones |
| 06/22/2000 | CA2353863A1 1-hydroxy-3-sulfonoalkane-1,1-diphosphonous acids |
| 06/21/2000 | WO2000037774A1 Composition for eor and method of its preparation |
| 06/21/2000 | CN1257565A Mixture to increase oil layer recovery |
| 06/21/2000 | CN1257563A Oil recovery method using an emulsion |
| 06/21/2000 | CN1257465A Cementitious compositions and methods for use in subterranean wells |
| 06/21/2000 | CA2279874A1 Oil production composition and its preparation method |
| 06/15/2000 | WO2000034412A1 Agent and method for sealing or consolidating rock, loose rock or soils, especially bore holes |
| 06/15/2000 | WO2000034382A1 Dispersible water soluble polymers |
| 06/15/2000 | DE19857251A1 1-Hydroxy-3-sulfonoalkan-1,1-diphosphonsäuren 1-hydroxy-3-sulfonoalkan-1,1-diphosphonic acids |
| 06/15/2000 | DE19856729A1 Repairlösung zur Abdichtung von Bohrlöchern Repair solution for sealing of wells |
| 06/15/2000 | CA2353859A1 Agent and method for sealing or consolidating rock, loose rock or soils, especially boreholes |
| 06/15/2000 | CA2283019A1 Application of a stabilized polymer gel to an alkaline treatment region for improved hydrocarbon recovery |
| 06/14/2000 | EP1007601A1 Base oil for well fluids having low pour point temperature |
| 06/14/2000 | EP0882297B1 Treatment of radioactive material |
| 06/13/2000 | US6074563 Dehydration of drilling fluids |
| 06/13/2000 | CA2162936C Aluminum citrate preparations and methods |
| 06/11/2000 | CA2255413A1 Foamed nitrogen in liquid co2 for fracturing |
| 06/08/2000 | WO2000032711A1 Novel fluids and techniques for matrix acidizing |
| 06/08/2000 | WO2000032610A1 Phosphonate-containing mixtures |
| 06/08/2000 | DE19855333A1 Phosphonhaltige Mischungen Phosphonhaltige mixtures |
| 06/08/2000 | CA2352827A1 Novel fluids and techniques for matrix acidizing |
| 06/08/2000 | CA2352756A1 Phosphonate-containing mixtures |
| 06/06/2000 | US6070664 Reducing formation water formation by adding reactive polymers at alkaline ph, introducing galactomannan gelling agent and water to induce fracture, shutting-in well for polymers to polymerize, reducing water permeability |
| 06/02/2000 | WO2000031209A1 Precipitation of inorganic salts in porous media |
| 06/02/2000 | WO2000031154A1 Invertible emulsions stabilised by amphiphilic polymers and application to bore fluids |
| 05/31/2000 | EP1004660A1 An amino nitrile intermediate for the preparation of 2-hydroxyethyl iminodiacetic acid |
| 05/31/2000 | EP0890014B1 Method and system for monitoring a characteristic of an earth formation in a well |
| 05/30/2000 | US6069117 Foamed resin compositions for sealing subterranean zones |
| 05/30/2000 | US6068056 Acid-treating a subterranean formation by injecting a well treatment fluid containing an acid, water, an aliphatic aldehyde an an aromatic aldehyde via a well bore into the formation |
| 05/30/2000 | US6068055 Placing a slag cement sealant that does not shrink and form micro cracks upon setting and as a result is impermeable to gases and liquids, setting activator, water, hardenable epoxides, hardeners on subterranean zone, setting the slag |
| 05/30/2000 | US6068054 Oil recovery method using an emulsion |
| 05/30/2000 | CA2036926C Suspending medium for water soluble polymer |
| 05/25/2000 | WO2000029716A2 Azimuth control of hydraulic vertical fractures in unconsolidated and weakly cemented soils and sediments |
| 05/25/2000 | WO2000029519A1 A drilling fluid additive containing a fish oil/glycol mixture and related methods |
| 05/25/2000 | WO2000029502A1 Lubricants for drilling fluids |
| 05/25/2000 | WO2000029351A1 Cementation product and use for cementing oil wells or the like |
| 05/24/2000 | EP1002271A1 A memory controller for detecting a failure of speculation of a component being addressed |
| 05/24/2000 | EP1002026A1 Fluid loss control additives and subterranean treatment fluids containing the same |
| 05/24/2000 | EP0922079B1 Well servicing fluids |
| 05/24/2000 | CN1253922A Cement fire-resistive concrete for oil well |
| 05/23/2000 | US6065539 Injecting phenol-formaldehyde resin modified with furfuryl resin modified by means of an amount of furfuryl alcohol and comprises at least a proportion of an unreactive granular filler |
| 05/18/2000 | WO2000027945A1 Invert emulsion drilling fluids having negative alkalinity |
| 05/18/2000 | WO2000027944A1 Drilling fluid systems with improved fluid loss properties |
| 05/18/2000 | DE19852971A1 Schmiermittel für Bohrspülungen Lubricant for drilling fluids |
| 05/18/2000 | CA2351088A1 Invert emulsion drilling fluids having negative alkalinity |
| 05/17/2000 | EP1001133A1 Treating subterranean formation |
| 05/17/2000 | EP0285608B2 Water-in-oil emulsions |
| 05/17/2000 | CN1253536A Adhesive composition |
| 05/16/2000 | US6063972 Transporting a medium susceptible to hydrate formation through a pipeline which comprises treating said medium with an ammonium, sulfonium or phosphonium salt |
| 05/16/2000 | US6063884 Contacting unsaturated monomer solution with a chain transfer agent having specific phosphorus atom degree of oxidation and hydrogen peroxide (h2o2) initiator, in absence of agent(s) which decompose h2o2 to form free radicals or generate them |
| 05/16/2000 | US6063738 Foamed well cement slurries, additives and methods |
| 05/16/2000 | US6063737 Aqueous displacement fluid compositions for use in wellbores |
| 05/16/2000 | US6063334 Sulfur based corrosion inhibitor |
| 05/16/2000 | US6063146 Ethercarboxylic acids as asphaltene dispersants in crude oils |
| 05/11/2000 | WO2000026503A1 Hydrogen sulfide abatement |
| 05/11/2000 | WO2000026322A1 High pressure high temperature (hpht) fluid loss control aid for drilling fluids |
| 05/10/2000 | EP0998707A1 Host microprocessor with apparatus for temporarily holding target processor state |
| 05/10/2000 | EP0998540A1 Fluids useful for oil mining comprising de-acetylated xanthane gum and at least one compound increasing the medium ionic strength |
| 05/10/2000 | EP0960259A4 Aphron-containing well drilling and servicing fluids |
| 05/10/2000 | EP0937193A4 Method of remediation of contaminants in porous media through minimization of buoyancy effects |
| 05/09/2000 | US6060535 Cementing compositions and applications of such compositions to cementing oil (or similar) wells |
| 05/09/2000 | US6060436 Delayed borate crosslinked fracturing fluid |
| 05/09/2000 | US6060434 Oil based compositions for sealing subterranean zones and methods |
| 05/09/2000 | US6059036 Methods and compositions for sealing subterranean zones |
| 05/09/2000 | US6059034 Formation treatment method using deformable particles |
| 05/03/2000 | EP0997515A1 Polymeric earth support fluid compositions and method for their use |
| 05/03/2000 | EP0946679B1 Use of sarcosinates as asphaltene dispersants |
| 05/03/2000 | EP0701593B1 Drilling fluids comprising mostly linear olefins |
| 05/03/2000 | CN1052018C Preparation of polymers containing aspartic acid |
| 05/02/2000 | US6057272 Drilling fluids comprising mostly linear olefins |
| 05/02/2000 | US6056896 Mixture of oligomerized aromatic amines prepared by contacting the still bottoms residue produced in the distillation of quinoline from coal tar with oxygen |
| 04/27/2000 | WO2000023538A1 Removal of h2s in drilling mud |
| 04/26/2000 | EP0995012A1 Ether carboxylic acids as asphalt dispersants in crude oils |
| 04/26/2000 | EP0666893B1 Wellbore fluid |
| 04/25/2000 | US6054417 Rapid gel formation in hydrocarbon recovery |
| 04/25/2000 | US6054416 Drilling fluids comprising biodegradable heteropolyglycols |
| 04/25/2000 | US6054415 Skeletally isomerized linear olefins |
| 04/20/2000 | WO2000022063A1 Method for treating subterranean formations |
| 04/19/2000 | EP0993334A1 Fluids containing viscoelastic surfactant and methods for using the same |
| 04/19/2000 | EP0864032B1 Method of treating an underground formation |
| 04/18/2000 | US6051670 Compositions and processes for treating subterranean formations |
| 04/18/2000 | US6051535 Subterranean formation |
| 04/18/2000 | CA2181790C Method and combination of materials for releasing a stuck pipe |
| 04/18/2000 | CA2117737C Biodegradable corrosion inhibitors of low toxicity |
| 04/13/2000 | WO2000020527A1 Drilling fluid additive and process therewith |
| 04/13/2000 | WO2000020350A1 Cementing compositions and the use of such compositions for cementing oil wells or the like |
| 04/13/2000 | WO2000020113A1 Process for treatment of petroleum acids with ammonia |
| 04/12/2000 | EP0992563A1 Wellbore fluid containing alkali carboxylates with improved anticorrosive properties |
| 04/12/2000 | EP0991611A1 Method for consolidating and/or passivating, by chemical process, a porous mineral structure internal zone containing an alkaline-earth metal carbonate |
| 04/12/2000 | EP0991608A1 Adhesive composition |
| 04/12/2000 | EP0991607A1 Suspensions with high storage stability, comprising an aqueous silicate solution and a filler material |
| 04/12/2000 | EP0681640B1 Application of n,n-dialkylamides to reduce precipitation of asphalt from crude oil |
| 04/12/2000 | CN1051353C Method for drilling and cementing a well |
| 04/12/2000 | CN1051335C Process for recovering and causing highly viscous petroleum products to flow |
| 04/11/2000 | US6047772 Control of particulate flowback in subterranean wells |
| 04/11/2000 | CA2010901C Fluid additive and method for treatment of subterranean formations |
| 04/06/2000 | WO2000019062A1 Acidic surfactant composition and method for cleaning wellbore and flowline surfaces using the surfactant composition |