| 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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| 02/01/2001 | CA2380237A1 Method for injecting dense additive into drilling wells and composition therefor |
| 01/31/2001 | EP1071732A1 Drilling fluids |
| 01/31/2001 | EP1071731A1 Fluid and method for releasing tubular elements stuck in a well |
| 01/30/2001 | US6180689 Fluid loss control agents and compositions for cementing oil wells comprising said fluid loss control agent |
| 01/30/2001 | US6180683 Synergistic mixtures of alkylphenol-formaldehyde resins with oxalkylated amines as asphaltene dispersants |
| 01/30/2001 | US6180573 Weight material for drilling fluids and method of creating and maintaining the desired weight |
| 01/30/2001 | US6180572 Controlling viscosity of water-based bore hole servicing fluid with organic oil; storage stability |
| 01/30/2001 | US6180571 Pre-gelatinized, crosslinked starch |
| 01/30/2001 | CA2148583C Viscoelastic surfactant based foam fluids |
| 01/25/2001 | WO2001005851A1 Ampholyte polymer composition and method of use |
| 01/25/2001 | WO2001005727A2 Low density well cement compositions |
| 01/25/2001 | WO2001005365A1 Water soluble polymer composition and method of use |
| 01/25/2001 | WO2000060023A3 Quaternary nitrogen containing amphoteric water soluble polymers and their use in drilling fluids |
| 01/25/2001 | CA2379430A1 Low density well cement compositions |
| 01/24/2001 | EP1070105A1 New and improved drilling fluids and additives therefor |
| 01/23/2001 | US6178360 Methods and apparatus for determining optimum exposure threshold for a given photolithographic model |
| 01/23/2001 | US6177497 2-isobutoxyethanol is added to the aqueous phase in contact with natural gas. |
| 01/23/2001 | US6177484 Consolidating particles in a subterranean formation penetrated by a well |
| 01/23/2001 | US6177483 Setting composition for well operations |
| 01/23/2001 | US6177385 Metal ion crosslinked fracturing fluid and method |
| 01/23/2001 | US6176315 Preventing flow through subterranean zones |
| 01/23/2001 | US6176314 Cementing well using low density well cement slurry compositions that are formed by the addition of a free-fluid inhibitor additive to a mixture comprising a hydraulic cement and water; a suitable inhibitor is hydroxy ethyl cellulose |
| 01/18/2001 | WO2001004232A1 Latex additive for water-based drilling fluids |
| 01/18/2001 | DE19933176A1 Rheologically controlling liquid phases involves using adducts with layered metal hydroxide mixture and hectorites |
| 01/17/2001 | EP1069091A1 Cementing casing strings in deep water offshore wells |
| 01/17/2001 | CN1060682C Process for preparing sulfonate dispenser for moving highly viscous petroleum products and water containing dispenser |
| 01/16/2001 | US6173780 Process for increasing effectiveness of production chemicals by reducing number of squeezing and shut-in operations required to increase production rate from an oil well |
| 01/16/2001 | US6173778 A storable cement slurry, including an aqueous base fluid, a hydraulically-active cementious material, a set retarder, and a iota carrageenan suspending agent for cementing a oil or gas well bore |
| 01/16/2001 | US6173776 Cleaning compositions for oil and gas wells, lines, casings, formations and equipment and methods of use |
| 01/13/2001 | CA2276912A1 A process for the separation of tars and heavy oils from oil bearing soils and for the purging of high molecular weight compounds from surfaces |
| 01/11/2001 | WO2001002698A1 Method for treatment of underground reservoirs |
| 01/11/2001 | WO2001002512A1 Use of dimerized fischer-tropsch process products and vinylidene derivatives thereof |
| 01/11/2001 | WO2001002328A1 Use of metathesis products of fischer-tropsch process products |
| 01/11/2001 | WO2001002325A1 Alkylbenzenes derived from fischer-tropsch hydrocarbons and their use in drilling fluids |
| 01/11/2001 | CA2376603A1 Use of metathesis products of fischer-tropsch process products |
| 01/09/2001 | US6172011 Pumping fibers downhole with proppant to form porous pack that inhibits flow of solid particulates from well |
| 01/09/2001 | US6172010 Water-based foaming composition-method for making same |
| 01/09/2001 | US6171386 Cementing compositions, a method of making therefor, and a method for cementing wells |
| 01/09/2001 | US6170575 Cementing methods using dry cementitious materials having improved flow properties |
| 01/04/2001 | WO2001000747A1 Water-in-oil microemulsions useful for oil field or gas field applications and methods for using the same |
| 01/04/2001 | WO2001000746A1 Compositions and processes for oil field applications |
| 01/03/2001 | EP1065186A1 Well cementing method |
| 01/03/2001 | EP1064339A1 Compositions and processes for oil field applications |
| 01/02/2001 | US6169134 Viscosifying hydrocarbon liquids |
| 01/02/2001 | US6169058 Subterranean formation is treated by introducing a fracturing treatment composition comprising a polymer treatment fluid containing a dispersion of hydrophilic water swellable particles into the formation |
| 01/02/2001 | US6167967 Methods of sealing subterranean zones |
| 01/02/2001 | CA2139624C Method of dissolving organic filter cake obtained in drilling and completion of oil and gas wells |
| 12/29/2000 | CA2312621A1 Process for in situ upgrading of heavy hydrocarbon |
| 12/28/2000 | WO2000079095A1 Reduction in mineral salt deposition |
| 12/28/2000 | WO2000078891A1 Oil based drilling fluid and copolymer based on styrene, lauryl methacrylate and (meth)acrylic acid |
| 12/28/2000 | WO2000078890A1 Water based wellbore fluids |
| 12/28/2000 | WO2000078706A1 Novel amines useful in inhibiting gas hydrate formation |
| 12/28/2000 | WO2000078676A1 Use of activated phyllosilicates in non-aqueous liquid detergents |
| 12/28/2000 | CA2377624A1 Reduction in mineral salt deposition |
| 12/28/2000 | CA2376585A1 Oil based drilling fluid |
| 12/27/2000 | EP1062297A1 A method of improving the flow properties of a crude oil or natural gas liquid |
| 12/27/2000 | EP0946470A4 A method for preventing or retarding the formation of gas hydrates |
| 12/26/2000 | US6166103 Aqueous gelable compositions with delayed gelling times |
| 12/26/2000 | US6166095 Method of preparing a drilling fluid comprising structured surfactants |
| 12/26/2000 | US6165948 Contacting rock in the natural gas well intake radius with aqueous dispersion including an organosilicon water repellent; antideposit agents |
| 12/26/2000 | US6165947 Method and composition for controlling fluid loss in high permeability hydrocarbon bearing formations |
| 12/26/2000 | US6165946 Circulating a frictionally heated working fluid in contact with solid surface during geologic exploration, cooling fluid to a temperature above the freezing point of the aqueous phase and below phase inversion temperature |
| 12/26/2000 | US6165945 Blends of glycol derivatives as gas hydrate inhibitors in water base drilling, drill-in, and completion fluids |
| 12/26/2000 | US6164380 Method for clearing debris in a bore |
| 12/26/2000 | US6164379 Process for the enhanced recovery of petroleum oil |
| 12/21/2000 | WO2000077088A1 Microfibrillated and/or microcrystalline dispersion, in particular of cellulose, in an organic solvent |
| 12/21/2000 | DE19927652A1 Layered silicates of high structure activator content used in improving rheological properties and settling resistance of liquid detergents, as well as of liquid-to-highly viscous media e.g. resins or drilling fluids |
| 12/20/2000 | EP1060325A1 Compositions for use in well construction, repair and/or abandonment |
| 12/20/2000 | EP1060147A1 Retarding systems and application to oil well cementing |
| 12/20/2000 | CN1059650C Graft polymers of keto-aldehyde condensation or co-condensation products |
| 12/19/2000 | US6162766 Reducing viscosity and hydrolytic polymers |
| 12/17/2000 | CA2311994A1 Use of activated layer silicates in nonaqueous liquid laundry detergents and other fluid to high viscosity media |
| 12/14/2000 | WO2000075486A1 The use of encapsulated acid in acid fracturing treatments |
| 12/14/2000 | WO2000075481A1 Shear-sensitive plugging fluid for plugging and a method for plugging a subterranean formation zone |
| 12/14/2000 | WO2000075399A2 Composition and method for inhibition of metal corrosion |
| 12/14/2000 | DE19926847A1 Preparation of salt- and solids-containing suspensions comprises adjusting the specific weight of the salt solutions, adding organic temperature-stable polymers and inorganic loading |
| 12/14/2000 | DE19926355A1 Wasserlösliche Mischpolymere und ihre Verwendung für Exploration und Förderung von Erdöl und Erdgas Water-soluble copolymers and their use for exploration and production of oil and natural gas |
| 12/13/2000 | EP1059316A1 Water-soluble copolymers and their use for the exploration and recuperation of oil and gas |
| 12/12/2000 | US6160036 Microencapsulated drag reducing agents |
| 12/12/2000 | US6159907 Paraffinic mixture that comprises (a) a total combined concentration of iso-paraffins and n-paraffins of at least about 90 weight percent (b) greater than 50 weight percent iso-paraffins |
| 12/12/2000 | US6159906 Oil well drilling fluids with improved anti-settling properties and methods of providing anti-settling properties to oil well drilling fluids |
| 12/12/2000 | CA2138599C Set retarded ultra fine cement compositions and methods |
| 12/09/2000 | CA2310913A1 Well cementing methods using compositions containing liquid polymeric additives |
| 12/07/2000 | WO2000073623A1 Brine viscosification for enhanced oil recovery |
| 12/07/2000 | WO2000073620A1 Removal of wellbore residues |
| 12/07/2000 | WO2000073376A1 Organosilicon composition |
| 12/07/2000 | CA2374842A1 Brine viscosification for enhanced oil recovery |
| 12/07/2000 | CA2374443A1 Organosilicon composition |
| 12/06/2000 | EP1056926A1 Improvements in or relating to reducing water flow |
| 12/06/2000 | EP1056817A1 Anti-accretion additives for drilling fluids |
| 12/06/2000 | EP1056693A1 Anionic surfactants based on alkene sulfonic acid |
| 12/05/2000 | US6156819 Use of low- and high-molecular-weight polymers in well treatments |
| 12/05/2000 | US6156805 Stabilizing emulsions |
| 12/05/2000 | US6156708 Mixture of oleaginous liquid and viscosifier |
| 12/05/2000 | US6155348 Stimulating unconsolidated producing zones in wells |
| 11/30/2000 | WO2000071635A1 Polymer compositions |
| 11/30/2000 | WO2000071619A1 Liquefaction and dispersion of paraffin waxes, asphaltenes and coke in oil |
| 11/30/2000 | WO2000071241A1 Compositions and methods for using polymeric suds enhancers |
| 11/30/2000 | WO2000071240A1 Compositions and methods for using zwitterionic polymeric suds enhancers |
| 11/30/2000 | CA2374486A1 Polymer compositions |