| 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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| 08/26/1986 | CA1210320A1 Fracturing fluids containing bouyant inorganic diverting agent and method of use in hydraulic fracturing of subterranean formations |
| 08/26/1986 | CA1210233A1 Stabilizing polysaccharide solutions for tertiary oil recovery at elevated temperature with dithionite |
| 08/26/1986 | CA1210232A1 Drilling fluids based on a mixture of a sulfonated thermoplastic polymer and a sulfonated elastomeric polymer |
| 08/20/1986 | EP0191558A1 Control of viscosity of aqueous drilling fluids |
| 08/20/1986 | EP0191524A2 Method of preventing precipitation of ferrous sulfide and sulfur during acidizing |
| 08/20/1986 | EP0191218A2 Substituted benzenesulphonic acids and their use in increasing the hydrocarbon production from subterranean formations |
| 08/20/1986 | EP0191184A2 Thickeners having two ionic components and use thereof in aqueous compositions |
| 08/20/1986 | CN86100085A Thinners for use in aqueons drilling slurry |
| 08/19/1986 | US4607099 Stabilization of xanthan gum in aqueous solution |
| 08/19/1986 | US4607066 Mine stopping sealant |
| 08/19/1986 | US4606772 Crosslinker containing aluminum and zirconium cations, an a-hydroxyacid, and an alkanolamine |
| 08/19/1986 | US4606407 Using rapid, then delayed crosslinking agents |
| 08/19/1986 | CA1210168A1 Use of polycondensation products of acrolein and formaldehyde for removing hydrogen sulphide and iron sulphide in aqueous systems |
| 08/14/1986 | WO1986004634A1 Corrosion inhibitor for high density brines |
| 08/14/1986 | WO1986004600A1 Method for the consolidation of geological formations |
| 08/12/1986 | US4605737 Esters or mixed ether/ester; corrosion resistance |
| 08/12/1986 | US4605736 Titanium-glycol useful, as crosslinking agents, for polygalactomannans |
| 08/12/1986 | US4605689 Preparation of aqueous polyacrylamide solutions for enhanced oil recovery |
| 08/12/1986 | US4605505 Drilling fluids |
| 08/12/1986 | US4605068 Well treating composition and method |
| 08/12/1986 | US4605061 Apparatus for plugging a wellbore in high impulse fracturing |
| 08/12/1986 | CA1209466A1 Polymer flow control apparatus and method |
| 08/12/1986 | CA1209465A1 Method for oil recovery from reservoir rock formations |
| 08/06/1986 | EP0189959A2 Process for the preparation of polysaccharide aqueous solutions |
| 08/06/1986 | EP0189950A1 Cement composition for cementing of wells enabling gas channelling in the cemented annulus to be inhibited by right-angle setting |
| 08/06/1986 | CN86100989A Chrome humates as drilling mud additives |
| 08/05/1986 | US4604233 Thickened aqueous hydrochloric acid composition for descaling, or treatment of subterranean formations |
| 08/05/1986 | US4604218 Aqueous acid gels and use thereof |
| 08/05/1986 | US4604217 Gelled aqueous compositions |
| 08/05/1986 | US4604216 Drilling fluids |
| 08/05/1986 | US4603738 Process and means for preventing blockages of crude oil deposits by the formation of emulsion due to deposits of asphalt |
| 08/05/1986 | CA1209010A1 Foaming surfactant compositions |
| 08/05/1986 | CA1209009A1 Polyampholytes and their use |
| 07/30/1986 | EP0189042A2 Ether amine oxides, process for their preparation and their use as surfactants in the tertiary recovery of petroleum oil |
| 07/30/1986 | EP0188971A1 Process for consolidating a geological formation by thermal polymerisation |
| 07/30/1986 | EP0188856A1 Gel and process for retarding fluid flow |
| 07/30/1986 | CN85109611A Method of consoltdating a geological formation by thermal polymerization |
| 07/29/1986 | US4603154 Method for preparing dilute polymer solutions |
| 07/29/1986 | US4603009 Process for preparing brine tolerant sulfonate and sulfate surfactants having 1,3-dihydrocarboxy-2-propyl hydrophobic tails |
| 07/29/1986 | US4602685 Non-retarding fluid loss additives for well cementing compositions |
| 07/29/1986 | US4602683 Brines, ph, precipitation, water solubility, equilibrium |
| 07/29/1986 | CA1208827A1 Apparatus and method for preparing polymer solutions |
| 07/29/1986 | CA1208824A1 Method and apparatus for multiple recycle polymer dilution |
| 07/23/1986 | EP0188353A2 Corrosion inhibitors |
| 07/22/1986 | US4602067 High temperature drilling fluids |
| 07/22/1986 | US4601836 Phosphate ester/alcohol micellar solutions in well acidizing |
| 07/22/1986 | US4601758 Sulfonated poly (vinyl aromatics) as fluid loss additives for salt cement slurries |
| 07/22/1986 | US4601340 Enhanced oil recovery, crosslinking |
| 07/22/1986 | US4601339 With pumpable gel mixture which solidifies |
| 07/22/1986 | CA1207997A1 Stabilizing clay soil with hydroxy-aluminum and cellulosic polymers |
| 07/16/1986 | EP0187451A2 Gelled aqueous compositions |
| 07/15/1986 | US4600761 Disarming a bomb;safety device |
| 07/15/1986 | US4600744 Process for the preparation of clay mineral-containing gels with stabilized structure and reversible water absorption ability |
| 07/15/1986 | US4600516 Enhanced oil recovery |
| 07/15/1986 | US4600515 Acrylamide-metal acrylate copolymers |
| 07/15/1986 | US4600057 Method of reducing the permeability of a subterranean formation |
| 07/15/1986 | CA1207943A1 Intramolecular polymeric complexes - viscosifiers for acid, base and salt (aqueous) solutions |
| 07/15/1986 | CA1207519A1 Method for obtaining gelled hydrocarbon compositions, the compositions according to said method and their application in the hydraulic fracturing of underground formations |
| 07/15/1986 | CA1207518A1 Drilling fluids based on sulfonated elastomeric polymers |
| 07/15/1986 | CA1207517A1 Water control well treating solution and method |
| 07/09/1986 | EP0187074A1 Thermal stabilisation process for aqueous polysaccharide solutions |
| 07/09/1986 | EP0186663A1 Gel and process for retarding fluid flow. |
| 07/09/1986 | CN85108730A Micellar slug for oil recovery |
| 07/08/1986 | US4599188 Foaming surfactant compositions |
| 07/08/1986 | US4599182 Shrinkage and stabilization of clays improved permeability |
| 07/08/1986 | US4599181 Humic substances with enhanced surface charge |
| 07/08/1986 | US4599180 Process of thermal stabilization of aqueous solutions of polysaccharides and its application to drilling fluids |
| 07/08/1986 | US4598979 Electrochromic display device |
| 07/08/1986 | CA1207478A1 Self-inverting water-in-oil emulsions of water- soluble polymers |
| 07/08/1986 | CA1207336A1 Alkylxylene sulphonate compounds, their preparation and use |
| 07/08/1986 | CA1207195A1 Coated water-soluble polymer compounds for the preparation of aqueous solutions for use in enhanced oil recovery |
| 07/02/1986 | EP0186450A2 Aqueous compositions containing cyanuric acid |
| 07/02/1986 | CA1206869A Process for improving vertical conformance in a near wellbore environment |
| 07/02/1986 | CA1206739A Stabilizing polysaccharide solutions for tertiary oil recovery at elevated temperature with borohydride |
| 07/02/1986 | CA1206738A Polyamine fluid loss additive for oil well cements |
| 07/01/1986 | US4597991 Coated particles |
| 07/01/1986 | US4597879 Micellar slug for oil recovery |
| 07/01/1986 | US4597878 Polyphenolic acid adducts |
| 06/25/1986 | EP0185612A1 Disinfection of crude oil and petroleum products and its application to the production of crude oil |
| 06/24/1986 | US4596838 For sealing geological formations; sodium silicate, silica, metal silicate |
| 06/24/1986 | US4596662 Glycol diester of sodium monosulfosuccinate and polypropoxylated quaternary ammonium chloride, and sodium alkylphenyl polyether sulfate |
| 06/24/1986 | CA1206473A1 Carboxymethyl hydroxyethyl cellulose composition |
| 06/24/1986 | CA1206331A1 Multi-component grouting system |
| 06/18/1986 | EP0184882A1 Method for improving the filterability of a microbial broth and its use |
| 06/17/1986 | US4595736 Thermally stable drilling fluid additive comprised of a copolymer of catechol-based monomer |
| 06/17/1986 | US4595513 Oil base well treating fluids thickened by block copolymers |
| 06/17/1986 | US4595512 Acid complex selected from phosphoric acid boron fluoride complex and hydrocarbon or trichloroethane phase, mixing in cationic quaternary ammonium salt and alcohol surfactants |
| 06/17/1986 | US4595511 Injecting into production well high flash aromatic liquid comprising oxyalkylated amine emulsion breaker, alkylphenols, fatty acids, and glycol ethers |
| 06/17/1986 | CA1206058A1 Aqueous compositions containing overbased materials |
| 06/17/1986 | CA1205992A1 Organic compounds |
| 06/10/1986 | US4594200 Compositions for increasing hydrocarbon production from subterranean formations |
| 06/10/1986 | US4594170 Hydrogen peroxide |
| 06/10/1986 | US4594169 Mixture of nitrohumic and lignosuldonate complex and metal compounds |
| 06/10/1986 | US4594168 Derivatives of lignosulfonic acid |
| 06/10/1986 | US4593764 Removal of pipe dope constrictions |
| 06/10/1986 | US4593762 High polymer solutions having an increased drag and process for their manufacture |
| 06/10/1986 | CA1205823A1 Additive composition for release of stuck drill pipe |
| 06/10/1986 | CA1205616A1 Process for elimination of h.sub.2s from natural gas, crude oil and mixtures thereof |
| 06/05/1986 | WO1986003251A1 A process for increasing the yield of oil reservoirs |
| 06/04/1986 | EP0183296A1 An improved composition for a lightweight cement slurry for cementing oil and gas wells |