C09K 8 - Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations

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)
12/1976
12/21/1976	US3998773 An alkali metal salt of the condensation product of mononaphthalene sulfonic acid and formaldehyde and polyethylene oxide
12/21/1976	US3998744 Oil fracturing spacing agents
12/21/1976	US3998743 Method and solvent composition for stimulating the production of oil from a producing well
12/21/1976	US3998742 Additive for reducing gel strength in aqueous drilling fluids
12/21/1976	US3998272 Method of acidizing wells
12/21/1976	US3998271 Multiple fracturing of subterranean formations
12/21/1976	US3998270 Oil recovery by waterflooding employing graphite oxide for mobility control
12/21/1976	US3998269 Plugging a subterranean reservoir with a self-sealing filter cake
12/14/1976	US3997452 Alkali metal aluminate, dimethylformamide, glycerine
12/14/1976	US3997451 Micellar dispersion
12/14/1976	US3997293 Use of dihydro-nitrogen heterocyclic phosphoramidates as corrosion inhibitors
12/07/1976	US3995705 Method of foam drilling using a di-substituted taurate foaming agent
11/1976
11/30/1976	US3994344 Method for recovery of acidic crude oils
11/30/1976	US3994342 Microemulsion flooding process
11/23/1976	US3993570 Water loss reduction agents
11/23/1976	US3993134 Well cementing method using cementing composition having improved flow properties
11/23/1976	US3993133 Selective plugging of formations with foam
11/09/1976	US3991205 Inhibiting growth of bacteria and fungi with t-butyl 2,4,5-trichlorophenyl carbonate
11/09/1976	US3990978 Breaking of gelled organic liquids
11/09/1976	US3990903 Hydrothermal cement and method of cementing well bores
11/02/1976	US3989632 Method of conducting drilling operations
11/02/1976	US3989630 Low solids shale controlling drilling fluid
11/02/1976	US3989592 Water-soluble polymers and utilization thereof
10/1976
10/26/1976	US3988246 Clay-free thixotropic wellbore fluid
10/26/1976	US3987855 Lost circulation control
10/19/1976	US3986964 Method of well drilling and composition therefor
10/12/1976	US3985667 Process and composition for drilling shale formation in sea water
10/12/1976	US3985659 Bentonite or subbentonite and a lignosulfonate polyacrylate copolymer
10/05/1976	US3984333 Oil-displacing aqueous solution thickened with reservoir-tailored block copolymer
10/05/1976	US3983940 Water-external microemulsion and method of recovering oil therewith
10/05/1976	US3983939 Method for recovering viscous petroleum
09/1976
09/21/1976	US3981835 Method of making a set water-in-oil emulsion including a continuous resin phase
09/21/1976	US3981363 Partially crosslinked polymer used in correcting subterranean formation permeability
09/21/1976	US3981361 Oil recovery method using microemulsions
09/14/1976	USRE28963 Determination of residual oil in a formation
09/14/1976	US3980137 Combustible fuel and oxygen
09/14/1976	US3980136 Fracturing well formations using foam
09/07/1976	US3979305 Solid solutions, wax, partial ester, surfactants
09/07/1976	US3979304 Method for drilling and treating subterranean formations using a low fluid loss agent
09/07/1976	US3979303 Oil well drilling fluid
09/07/1976	US3978928 Process for the production of fluids from subterranean formations
09/07/1976	US3978927 Alkoxylated asphalts as sacrificial agents in oil recovery processes
08/1976
08/31/1976	US3977472 Method of fracturing subterranean formations using oil-in-water emulsions
08/31/1976	US3977471 Oil recovery method using a surfactant
08/31/1976	US3977470 Oil recovery by alkaline-sulfonate waterflooding
08/24/1976	US3976582 Optimizing petroleum recovery micellar systems utilizing zeta potential
08/24/1976	US3976140 Method of consolidating subterranean formations using diluted resins
08/24/1976	US3976138 Method of increasing permeability in subsurface earth formation
08/24/1976	US3976135 Method of forming a highly permeable solid mass in a subterranean formation
08/17/1976	US3974877 Sand control method employing low temperature oxidation
08/10/1976	US3974077 Fracturing subterranean formation
08/10/1976	US3973629 Injection profiles with radiation induced copolymers
07/1976
07/27/1976	US3971440 Method for treating subterranean formations with cellulose ether-polyacrylamide aqueous gels
07/27/1976	US3971439 Designing micellar displacement systems to minimize adsorption
07/20/1976	US3970148 Method for stimulating wells completed in oil bearing earth formations
07/13/1976	US3968840 Controlled rate acidization process
06/1976
06/29/1976	US3965986 Method for oil recovery improvement
06/29/1976	US3965985 Microbial synthesis from aldehyde containing hydrocarbon derived products
06/29/1976	US3965984 Waterflood method using overbased normal alkylaromatic sulfonates
06/22/1976	US3965264 Diels-alder adduct of a phosphoramidate and a dienophile
06/22/1976	US3964972 Modified heteropolysaccharides
06/22/1976	US3964923 Oxidizer, reducing agent, alcohol and polyacrylamides, cellulose ethers or polysaccharides
06/22/1976	US3964921 Well cementing composition having improved flow properties, containing phosphonobutane tricarboxylic acid, and method of use
06/22/1976	US3964557 Treatment of weighted drilling mud
06/22/1976	US3964548 Method for oil recovery by flooding with micellar dispersions containing crude oil sulfonates
06/08/1976	US3962102 Composition and method for acidizing earthen formations
06/08/1976	US3962101 Composition and method for acidizing earthen formations
06/08/1976	US3962099 Clay, alkaline earth metal hydroxide
06/01/1976	US3960736 Self-breaking viscous aqueous solutions and the use thereof in fracturing subterranean formations
05/1976
05/25/1976	US3959158 High temperature corrosion inhibitor for gas and oil wells
05/25/1976	US3959003 Thixotropic cementing compositions
05/25/1976	US3958638 Method for altering the permeability of a subterranean formation
05/18/1976	US3957660 Drilling fluid
05/18/1976	US3957659 Crude oil compositions having improved low temperature flow properties
05/18/1976	US3957116 Fluid flow control in waterflood
05/11/1976	US3956145 Fluid for injection into a subterranean reservoir to displace hydrocarbons in the reservoir
05/11/1976	US3956142 Noncorroding water base drilling fluids and additive system for making
05/11/1976	US3956141 Additive for reducing fluid loss or filtration rate for aqueous drilling fluid containing both high salinity and high soluble calcium
05/11/1976	US3956140 Condensation products of phenols, formaldehyde, and sulfite salts
05/11/1976	US3955998 Aqueous gels for plugging fractures in subterranean formation and production of said aqueous gels
05/11/1976	US3955993 Method and composition for stabilizing incompetent oil-containing formations
05/04/1976	US3954677 Sulfonated aromatic-formaldehyde condensation products
05/04/1976	US3954636 Acid, liquid carbon dioxide
05/04/1976	US3954629 Well treatment, mixture of polyethylene or ethylene-vinyl acetate copolymer and a polyamide
05/04/1976	US3954628 Preparation of sea water muds useful for earth drilling operations
05/04/1976	US3954627 Hydrocarbon, water and a sulfonate or carboxylate
05/04/1976	US3954626 Fracturing, carbon dioxide, alkanol, hydroxypropyl methylcellulose gelling agent
05/04/1976	US3954142 Zonal fracture treatment of well formations
04/1976
04/27/1976	US3953342 Petroleum recovery process
04/27/1976	US3953341 Oil recovery, methylolated acrylamide-2-acrylamidomethyl-propanesulfonic acid
04/27/1976	US3953340 Dissolving siliceous materials with self-acidifying liquid
04/27/1976	US3953338 Foam well cleanout using oligomeric sulfonic acids
04/27/1976	US3953337 Method of drilling wells employing water base drilling fluids
04/27/1976	US3953336 Brine containing hydroxyethyl cellulose and a hetero-polysaccharide
04/27/1976	US3953335 Magnesia stabilized additives for non-clay wellbore fluids
04/27/1976	US3952806 Polymeric gel; aluminum citrate
04/27/1976	US3952805 Well cementing method using a composition having improved flow properties, containing sulfonated copolymers of styrene-maleic anhydride
04/27/1976	US3952803 Oil recovery method using overbased waterflood additive containing sulfonates derived from alkylation reaction products
04/20/1976	US3951828 Process of injecting a micellar dispersion into a subterranean reservoir
04/20/1976	US3951827 Composition and method for removing insoluble scale deposits from surfaces

1 ... 307 308 309 310 311 312 313 314 315 316 317 318