| 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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| 01/04/2005 | US6837309 Methods and fluid compositions designed to cause tip screenouts |
| 01/04/2005 | CA2376827C Composition and method for sealing an annular space between a well bore and a casing |
| 12/30/2004 | US20040266629 Aqueous solutions capable of gelation containing dissolved polymer |
| 12/30/2004 | US20040262003 Providing a hardenable, low density sealing comprising a hardenable furan liquid resin mixture, an organosilane coupling agent, a cationic surfactant, and hollow microspheres; placing sealing formulation in well bore; allowing to harden into an impermeable mass |
| 12/30/2004 | US20040262002 Composition and method for diversion agents for acid stimulation of subterranean formations |
| 12/30/2004 | US20040262001 Compositions comprising set retarder compositions and associated methods |
| 12/30/2004 | US20040262000 Adding to a hydraulic cement, water, and a fluid loss control additive contaning an acrylamide copolymer derivative, anhyidrous ferric chloride, a dispersant, and a hydratable polymer |
| 12/30/2004 | US20040261999 Permeable cement and methods of fracturing utilizing permeable cement in subterranean well bores |
| 12/30/2004 | US20040261997 flocculation of particle such as sand in well bores by applying flushing fluids, then resins comprising mixtures of phenol, formaldehyde-phenols, furfuryl alcohol, silane coupling agents and surfactants, and rinsing |
| 12/30/2004 | US20040261996 Methods of diverting treating fluids in subterranean zones and degradable diverting materials |
| 12/30/2004 | US20040261995 Compositions and methods for improving proppant pack permeability and fracture conductivity in a subterranean well |
| 12/30/2004 | US20040261993 Well completion; mixture of hydraulic cement, water anfd degradable polymer material; consolidation cements |
| 12/29/2004 | WO2004113669A1 Liquid carbon dioxide cleaning of wellbores and near-wellbore areas |
| 12/29/2004 | WO2004113467A1 Method for reducing sag in drilling, completion and workover fluids |
| 12/29/2004 | WO2004094337A3 Cement compositions with improved mechanical properties and methods of cementing in a subterranean formation |
| 12/29/2004 | WO2004069939A3 Stabilized colloidal and colloidal-like systems |
| 12/29/2004 | EP1490581A1 Use of dispersion polymers as friction reducers in aqueous fracturing fluids |
| 12/29/2004 | EP1490580A1 HIGH TEMPERATURE SEAWATER−BASED CROSS−LINKED FRACTURING FLUIDS AND METHODS |
| 12/29/2004 | CN1558983A Shear-sensitive plugging fluid for plugging and a method for plugging a subterranean formation zone |
| 12/28/2004 | US6835697 Comprises mixing contaminated drilling fluids in high shear mixer, adding solidification agent which expands when hydrated and electrolytically attracts contaminates to surface, adding cellulosic additive, forming powder, and dispersing into sea |
| 12/28/2004 | US6835243 Using foamed cement; hardening |
| 12/28/2004 | CA2248368C Substantially linear ethylene/alpha-olefin polymers as viscosity index improvers or gelling agents |
| 12/28/2004 | CA2237542C Quarternary ammonium compounds useful for inhibiting metal corrosion |
| 12/23/2004 | WO2004111383A1 Substances to stimulate the extraction of crude oil and a method of processing them |
| 12/23/2004 | WO2004111382A1 Cement compositions with improved fluid loss characteristics and methods of cementing in subterranean formations |
| 12/23/2004 | WO2004111161A1 Gas hydrate inhibitors |
| 12/23/2004 | WO2004097157A3 Method for treating bottomhole zone |
| 12/23/2004 | US20040259740 Method and compounds |
| 12/23/2004 | US20040259739 Reversible emulsions stabilized by amphiphilic polymers and application to drilling fluid |
| 12/23/2004 | US20040259738 Method for using reversible phase oil-based drilling fluid |
| 12/23/2004 | US20040256104 Removing any scale or deposits in gas wells, by injecting a liquid carbon dioxide at a pressure below the formation fracturing pressure, depressurization to vaporize carbon dioxide, and blow out any dissolved scale materials |
| 12/23/2004 | US20040256102 Cementitious compositions and cementitious slurries for permanently plugging abandoned wells and processes and methods therefor |
| 12/23/2004 | US20040255822 Methods of cementing high temperature wells and cement compositions therefor |
| 12/22/2004 | EP1489260A1 Downhole tool and method of fracturing a well formation |
| 12/21/2004 | US6832653 Method for enhancing gas well secondary recovery operations |
| 12/21/2004 | US6832652 Ultra low density cementitious slurries for use in cementing of oil and gas wells |
| 12/21/2004 | US6832651 Cement composition exhibiting improved resilience/toughness and method for using same |
| 12/21/2004 | US6832650 Methods of reducing or preventing particulate flow-back in wells |
| 12/16/2004 | WO2004109056A1 Lightweight cement compositions and methods of cementing in subterranean formations |
| 12/16/2004 | WO2004109053A2 Lost circulation material blend offering high fluid loss with minimum solids |
| 12/16/2004 | WO2004063305A3 Improved drilling fluids |
| 12/16/2004 | US20040251026 Cementing compositions and application of such compositions for cementing oil wells or the like |
| 12/15/2004 | EP1485572A1 Compositions for restoring lost circulation |
| 12/15/2004 | EP1485442A2 Composition and process for well cleaning |
| 12/15/2004 | EP1114115B1 Polysaccharide-containing well drilling and servicing fluids |
| 12/15/2004 | EP0948704B1 Method for improved stimulation treatment |
| 12/14/2004 | US6831108 Viscoelastic surfactant fluids and related methods of use |
| 12/14/2004 | US6831044 Product for coating wellbore screens |
| 12/14/2004 | US6831043 Clay antiswelling agents |
| 12/14/2004 | US6831042 Aqueous drilling fluid used in drilling wells through subterranean formations having a pH of between about 7 and about 12 and a viscosity of from about 20 to about 80 sec (Marsch cone) which is prepared by admixing fresh water, brine |
| 12/14/2004 | US6830105 Forming a mixture comprising particulate, elastomer-forming component in a liquid form or in solvent solution, and fluid; introducing mixture into the subterranean formation to form the particulate into a flexible and coherent mass |
| 12/14/2004 | CA2349234C Cyclic solvent process for in-situ bitumen and heavy oil production |
| 12/14/2004 | CA2231904C Methods of sealing subterranean zones |
| 12/14/2004 | CA2196371C Methods of preventing well cement stress failure |
| 12/09/2004 | WO2004106698A1 Methods and compositions for breaking viscosified fluids |
| 12/09/2004 | WO2004106457A2 Aqueous fluid comprising a boronate polymer and a ligand polymer and use thereof in the exploitation of oil and gas deposits |
| 12/09/2004 | WO2004106387A2 Process for forming a ziegler-natta catalyst system having a controlled morphology |
| 12/09/2004 | US20040244978 Lost circulation material blend offering high fluid loss with minimum solids |
| 12/09/2004 | US20040244977 Mixture of zeolite, cement and flow control agent; well completion |
| 12/09/2004 | US20040244975 Method for reducing or completely eliminating water influx in an underground formation, and crosslinkable copolymers for implementing said method |
| 12/09/2004 | US20040244969 Methods of well treatment |
| 12/09/2004 | US20040244650 Displacement fluid comprising vitrified shale and hydrated lime in well bore; drilling |
| 12/08/2004 | EP1483353A1 Oil based well fluids with high solids content |
| 12/08/2004 | EP1358298B1 Additive for oil-based invert drilling fluids |
| 12/08/2004 | CN1553985A Method of controlling asphaltene precipitation in a fluid |
| 12/07/2004 | US6828281 Surfactant blends for aqueous solutions useful for improving oil recovery |
| 12/07/2004 | US6828280 Methods for stimulating hydrocarbon production |
| 12/07/2004 | US6828279 Comprises brines, fatty acid/ester of diglycerol or triglycerol and weighting agent (barite, calcite) for subterranean well completion solutions |
| 12/03/2004 | CA2469562A1 Methods of using invertible oil external-water internal fluids in subterranean applications |
| 12/02/2004 | WO2004104371A1 Lightweight high strength particles and methods of their use in wells |
| 12/02/2004 | WO2004104368A2 Methods for controlling water and particulate production from subterranean formations |
| 12/02/2004 | WO2004104367A1 Sludge control in crude oil |
| 12/02/2004 | US20040242431 Process fluid |
| 12/02/2004 | US20040242430 Methods and compositions for breaking viscosified fluids |
| 12/02/2004 | US20040238170 Aqueous storable cement spacer system and method of making and using the same |
| 12/02/2004 | CA2525561A1 An improved non-metallic thread sealant and anti-seize compound |
| 12/01/2004 | EP1481038A2 Improved hydrocarbon fluids |
| 11/30/2004 | US6825152 Method for creating dense drilling fluid additive and composition therefor |
| 11/30/2004 | US6823940 Methods of consolidating formations and forming a chemical casing |
| 11/30/2004 | US6823939 Methods of treating subterranean zones penetrated by well bores |
| 11/30/2004 | CA2237547C Metal corrosion inhibited organic acid compositions |
| 11/30/2004 | CA2231902C Water based compositions for sealing subterranean zones and methods |
| 11/25/2004 | WO2004101955A1 Methods and compositions for placing particulate materials in subterranean zones |
| 11/25/2004 | WO2004101953A1 Methods of cementing in subterranean zones penetrated by well bores using biodegradable dispersants |
| 11/25/2004 | WO2004101952A1 Self adaptive cement systems |
| 11/25/2004 | WO2004101951A1 Self adaptive cement systems |
| 11/25/2004 | WO2004101705A2 Synthetic filtration control polymers for wellbore fluids |
| 11/25/2004 | WO2004101463A2 Compositions and methods for treating lost circulation |
| 11/25/2004 | WO2004076796A3 Cementing compositions and methods of cementing in a subterranean formation using an additive for preventing the segregation of lightweight beads |
| 11/25/2004 | US20040235675 Oilfield treatment fluid stabilizer |
| 11/25/2004 | US20040235674 Mixing with adjuvant; aqueous solution containing crosslinked polyvinylpyrrolidone |
| 11/25/2004 | US20040232044 Especially a salt of an imine and a carboxylic, phosphonic or sulfonic acid that has a polar group located two to ten chemical bonds from the acid group |
| 11/25/2004 | US20040231892 Includes a humidifying device having a vibrator to convert water into vapor, and a preheating device to preheat the hydrogen and air humidified by the mixing member, and at least one temperature sensor |
| 11/25/2004 | US20040231848 Well stimulation compositions |
| 11/25/2004 | US20040231847 Methods for controlling water and particulate production |
| 11/25/2004 | US20040231845 Applications of degradable polymers in wells |
| 11/25/2004 | US20040231844 methods of treating subterranean producing zones with fluids containing light weight high strength particles comprised of sintered mixtures of a base material and hollow microspheres |
| 11/25/2004 | CA2525629A1 Method for stimulating hydrocarbon production and reducing the production of water from a subterranean formation |
| 11/25/2004 | CA2524494A1 Synthetic filtration control polymers for wellbore fluids |
| 11/25/2004 | CA2523472A1 Well treating method to prevent or cure lost-circulation |