| 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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| 11/03/1992 | CA1309581C Vicinal diol containing monomers and polymers and methods of preparing |
| 10/29/1992 | WO1992018238A1 Adducts of clay and activated mixed metal oxides |
| 10/27/1992 | US5158693 Oligoquinolinium metal oxide salts as sulfur corrosion inhibitors |
| 10/27/1992 | US5158613 Contains microsilica |
| 10/27/1992 | US5158612 Sulfonated alkoxylated alcohols |
| 10/27/1992 | US5158139 Well completion method and fluid loss control composition |
| 10/27/1992 | CA2105469A1 Method of cementing a well |
| 10/27/1992 | CA1309546C Polymeric dispersant for aqueous dispersions |
| 10/21/1992 | EP0509924A1 Method for improving dispersibility and filtrablity of watersoluble polymer powders |
| 10/20/1992 | US5156214 Preparing aqueous mixture of gel-forming compositions; first stage of heteropolysaccharide and crosslinking agent, second of water-dispersible polymer and crosslinking agent; gelling first stage |
| 10/20/1992 | CA1308897C Acidized fracturing fluids containing high molecular weight poly(vinylamines) for enhanced oil recovery |
| 10/20/1992 | CA1308896C Compositions containing high molecular weight poly(vinylamines) for enhanced oil recovery |
| 10/20/1992 | CA1308895C Gelable compositions and use thereof in steam treatment of wells |
| 10/20/1992 | CA1308894C Consolidatable gravel pack method |
| 10/17/1992 | CA2089572A1 Adducts of clay and activated mixed metal oxides |
| 10/15/1992 | WO1992017417A1 Control of gas flow through cement column |
| 10/14/1992 | EP0274523B1 Organophilic polyphenolic acid adducts |
| 10/14/1992 | CN1065276A Process for polymerization of itaconic acid |
| 10/13/1992 | US5155156 Mixed with oil; flocculants for papermaking, oil recovery, sewage treatment |
| 10/13/1992 | US5154932 Deactivation of microorganism which has negatively charged surface |
| 10/13/1992 | US5154836 Process for treating contaminants in aqueous-based materials |
| 10/13/1992 | US5154230 Polymerizing resin to form colsolidate matrix that prevents fl ow of sand |
| 10/13/1992 | CA1308710C Tertiaryaminoalkyl-hydroxyalkyl ethers of polygalactomannans |
| 10/13/1992 | CA1308550C In situ chemical stimulation of diatomite formations |
| 10/07/1992 | EP0507105A2 Non-polluting anti-stick water-base drilling fluid modifier and method of use |
| 10/07/1992 | EP0506934A1 Novel gel-based compositions used in reducing water inrush in oil or gas-producing wells. |
| 10/06/1992 | US5153240 Fluid loss additives for well cementing compositions containing a tetrapolymer |
| 10/06/1992 | US5152907 Mixtures of hydrocarbon solvents, water-soluble alkyl alcohols and oil-soluble alkyl alcohols for removing deposits of asphaltenes, paraffins and drilling muds |
| 10/06/1992 | US5152906 Clay stabilizing composition for oil and gas well treatment |
| 10/01/1992 | WO1992016715A1 Process for installing casing in a borehole |
| 09/30/1992 | EP0506258A1 Corrosion inhibitor and method of use |
| 09/30/1992 | EP0506246A1 Preparation of itaconic acid polymers |
| 09/30/1992 | EP0506192A1 Aqueous gellable composition, useful for modifying the permeability of a petroleum reservoir |
| 09/30/1992 | EP0506191A1 Aqueous gellable composition with delayed gelling time |
| 09/30/1992 | EP0505441A1 Method of supporting fractures in geological formations and hydraulic fluid composition for same. |
| 09/29/1992 | WO1992017683A1 Breaker chemical encapsulated with a crosslinked elastomer coating |
| 09/29/1992 | US5151203 Composition and method for cementing a well |
| 09/29/1992 | US5151196 Purification of solutions for scale removal solutions by acidification and chelation, separation and precipitation |
| 09/29/1992 | US5151131 Flow control agents of clays suspended in hydrocarbons with surfactants |
| 09/29/1992 | US5150754 In hydrocarbon producing well |
| 09/29/1992 | CA2104691A1 Breaker chemical encapsulated with a crosslinked elastomer coating |
| 09/29/1992 | CA1308099C Phosphated, oxidized starch and use of same as dispersant in aqueous solutions and coating for lithography |
| 09/28/1992 | CA2063197A1 Process for polymerization of itaconic acid |
| 09/26/1992 | WO1992016317A1 Synthetic cover for waste piles |
| 09/23/1992 | EP0505201A2 Gelling agent for liquid gel concentrate |
| 09/23/1992 | EP0505169A1 Metal-crosslinked polymer gels and breakage thereof |
| 09/23/1992 | EP0505002A2 Method of preparing polyethercyclicpolyols |
| 09/23/1992 | EP0505000A2 Method of preparing polyethercyclicpolyols |
| 09/23/1992 | EP0504181A1 Improved process for stabilising rock and/or filling hollows, e.g. in tunnel building and mining |
| 09/23/1992 | CN1064729A Enhanced liquid hydrocarbon recovery process |
| 09/22/1992 | US5149690 Drilling fluid additive and method for inhibiting hydration |
| 09/22/1992 | US5149370 Well cement compositions having improved properties and methods |
| 09/22/1992 | CA1307781C Polymeric particles, their manufacture and uses |
| 09/20/1992 | CA2063214A1 Method of preparing polyethercyclicpolyols |
| 09/20/1992 | CA2063212A1 Method of preparing polyethercyclicpolyols |
| 09/15/1992 | US5147964 Derivatized tannin grafted with acrylamide or 2-acrylamido-2-methylpropane sulfonic acid |
| 09/15/1992 | US5147852 Well working fluid additive containing cellulose material having a specified particle size distribution for use in wells in a permeable formation |
| 09/15/1992 | US5147565 Foamed well cementing compositions and methods |
| 09/15/1992 | US5147147 Water miscible liquid is added to sump, and then the mixture formed in this way is extracted from the cavity |
| 09/15/1992 | US5146988 Converting calcium sulfate scale to calcium carbonate with carbon dioxide and water, dissolving the calcium carbonate in the acid solution |
| 09/15/1992 | US5146986 Methods of reducing the water permeability of water and oil producing subterranean formations |
| 09/15/1992 | US5146985 Wells, alkali borate or zirconium salt |
| 09/15/1992 | CA1307457C Sand consolidation methods |
| 09/12/1992 | WO1992015769A1 Enhanced liquid hydrocarbon recovery process |
| 09/09/1992 | CN1018186B Process for recovering oil from deposit sediment containing oil underground |
| 09/08/1992 | US5145590 Method for improving the high temperature gel stability of borated galactomannans |
| 09/08/1992 | US5145013 Sand control with resin and explosive |
| 09/08/1992 | US5145012 Injecting with compound capable of gelation and gas precursor |
| 09/08/1992 | US5145003 Petroleum recovery by viscosity reduction and catalytic hydrogenation |
| 09/08/1992 | US5145002 Recovery of heavy crude oil or tar sand oil or bitumen from underground formations |
| 09/08/1992 | CA1307198C Process for the prevention of water inflow in a oil/gaz production well |
| 09/06/1992 | CA2062241A1 Bacteriogenic mineral plugging |
| 09/05/1992 | WO1992015771A1 Enhanced oil recovery |
| 09/05/1992 | CA2105288A1 Enhanced oil recovery |
| 09/03/1992 | WO1992014907A1 Slurried polymer foam system and method for the use thereof |
| 09/03/1992 | WO1992014798A1 Drilling fluid |
| 09/02/1992 | EP0501776A1 Stabilization of subterranean formations |
| 09/02/1992 | EP0501069A2 Pseudoplastic mixed metal layered hydroxide fluid with fluid loss additive and method of use in penetrating the earth |
| 09/01/1992 | US5143958 Gellable aqueous composition and its use in enhanced petroleum |
| 09/01/1992 | US5143632 Thickeners |
| 09/01/1992 | US5143594 Refinery anti-foulant - asphaltene dispersant |
| 09/01/1992 | US5143157 Activator for persulfate comprising a hydroxyacid or salt, hydroxylamine hydrochloride, gluconolactone or a copper compound using a polysaccharide gel thickener |
| 09/01/1992 | US5143156 Enhanced oil recovery using organic vapors |
| 09/01/1992 | US5143155 Bacteriogenic mineral plugging |
| 08/29/1992 | CA2043783A1 Pseudoplastic mixed metal layered hydroxide fluid with fluid loss additive and method of use in penetrating the earth |
| 08/26/1992 | EP0500402A1 Process for dry mixing of cement and silica fume in homogeneous form |
| 08/26/1992 | CN1018011B Water-base fracturing fluid for treating subterranean formations and gel-breaking thereof |
| 08/25/1992 | US5141920 Hydrocarbon invert emulsions for use in well drilling operations |
| 08/25/1992 | US5141655 Inhibition of scale formation from oil well brines utilizing a slow release |
| 08/22/1992 | CA2058913A1 Microemulsion method for improving the injectivity of a well |
| 08/20/1992 | WO1992014032A1 Method and compositions for fracturing subterranean formations |
| 08/20/1992 | CA2061357A1 Profile control in enhanced oil recovery |
| 08/19/1992 | EP0425521B1 Process for inserting gel in a well |
| 08/18/1992 | US5139088 Method of inhibiting asphalt precipitation in an oil production well |
| 08/18/1992 | US5139087 Method for ensuring injectivity of polymer solutions |
| 08/12/1992 | EP0498178A2 Ammonium salts of alkenylsucciminic acids and their use as corrosionsinhibitors in gas- and oil production |
| 08/11/1992 | US5138043 Stability; mildness to skin |
| 08/11/1992 | US5138007 Process for making graft copolymers from lignin and vinyl monomers |
| 08/06/1992 | WO1992013172A1 Method of microbial enhanced oil recovery |
| 08/06/1992 | DE4102908A1 Verwendung oberflaechenaktiver carbonsaeure-komplexester als emulgatoren in oel-basierten bohrspuelungen und anderen bohrlochbehandlungsmitteln Use oberflaechenaktiver carbonsaeure-complex ester as emulsifiers in oil-based drilling fluids and other downhole treatment products |