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7727938 |
Non-aqueous gels for consolidating and stabilizing wellbore formations
A method of treating an earth formation that includes injecting at least one lipophilic monomer into the earthen formation; wherein the at least one lipophilic monomer is selected from...
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7622427 |
Ethoxylated raw cotton linters for completion and workover fluids
A completion and workover fluid composition comprising, water and at least one rheology modifier and/or fluid loss control agent, and at least one other ingredient selected from the group...
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7354886 |
Pumpable multiple phase compositions for controlled release applications downhole
Pumpable multiple phase vesicle compositions carry agents and components downhole or through a conduit, and controllably releasing them at a different place and time by breaking the compositions....
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7094736 |
Sampling of hydrocarbons from geological formations
A method of separating from a mixture of oil-based drilling fluid and sample of formation hydrocarbon, the liquid component of the drilling fluid, which method comprises treating, e.g. chemically,...
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6180572 |
Aqueous swellable compositions of guar gum and guar gum derivatives in oleophilic liquids and their use
The invention relates to the use of oil-soluble oleophilic organic liquid phases--flowable at temperatures of 0 to 10° C.--from the classes of corresponding monocarboxylic and/or polycarboxylic ...
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5780407 |
Solvent soaps and methods employing same
Compositions comprising (a) a surfactant and (b) a diluent oil are employed in oil-based drilling fluids and processes for cleaning oil-contaminated substrates (e.g., oil-contaminated animals,...
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5756004 |
Quaternary ammonium compounds useful for inhibiting metal corrosion
The present invention provides improved quaternary ammonium compounds useful as metal corrosion inhibitors in aqueous acid solutions, methods of preparing the compounds, metal corrosion inhibited...
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5710108 |
Biopolymer/oil suspension compositions utilized in aqueous-based fluids used in the oil service industry including completion and drilling fluids
The invention involves biopolymer/oil suspension compositions for the oil service industry, most particularly drilling and completion fluids, which provide such fluids a variety of desirable...
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5618780 |
Lubricating composition including an ester-use of the composition and well fluid including the composition
The present invention relates to an optimized lubricating composition including, in useful amount, an ester and a fatty acid, and optionally, the invention also relates to a well fluid including...
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5183581 |
Process for the dewaxing of producing formations
A process, based on the Nitrogen Generating System/Emulsion in the presence of organic solvents, which is useful for the dewaxing of producing formations, is disclosed. The heat generation with the...
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5174913 |
Polybasic acid esters as oil field corrosion inhibitors
A corrosion inhibitor with excellent film forming and film persistency characteristics may be produced by first reacting in a condensation reaction a polybasic acid with a polyalcohol to form a...
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5009267 |
Method for temporarily reducing permeability of subterranean formations
A fluid loss control additive for aqueous fracturing media including a blend of two or more modified starches or a blend of one or more natural starches with one or more modified starches.
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4997581 |
Additive and method for temporarily reducing permeability of subterranean formations
A fluid loss control additive for aqueous fracturing media including a blend of two or more modified starches or a blend of one or more natural starches with one or more modified starches.
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4997582 |
Compositions for acid treating subterranean formations
Methods and compositions for acid treating subterranean formations penetrated by well bores are provided. The compositions are each comprised of an aqueous acid solution, one or more acrylamide...
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4964468 |
Method of inhibiting corrosion
Corrosion inhibition composition formed as a water-external emulsions having an oil soluble organic film forming type of corrosion inhibitor in the dispersed phase thereof are disclosed for...
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4828029 |
Solubilizing surfactants in miscible drive solvents
A process for dissolving surfactants in miscible gaseous drive fluids is discussed. The poor solvent properties of these drive fluids are enhanced by the addition of a cosolvent which facilitates...
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4825951 |
Process for recovery of oil from a subsurface reservoir by surfactant flooding
Oil is recovered from a subsurface reservoir by surfactants. Surfactant flooding is accomplished especially in reservoirs with marked temperature fluctuations or a temperature gradient which are...
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4775010 |
Methods and compositions for acid treating subterranean formations
Methods and compositions for acid treating subterranean formations penetrated by well bores are provided. The compositions are each comprised of an aqueous acid solution, one or more acrylamide...
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4571422 |
Polymer suspensions
Polysaccharide is provided as a fluid composition that is a dispersion of the polysaccharide in oil and that contains a dispersion promoter selected from surfactants and stabilizers. The dispersion...
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4528105 |
Micelle solution compositions for recovering crude oil
A stable micelle solution composition for recovering crude oil, which can form a homogeneous micro emulsion against brines in a wide range of salt concentrations.In a micelle solution composition...
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4518511 |
Delivery of polymeric antiprecipitants in oil wells employing an oil soluble carrier system
There is provided a method for treating a subsurface oil field formation penetrated by an oil-producing well bore comprising: injecting into said formation an emulsified, oil soluble polymeric...
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4464269 |
Additive composition for release of stuck drill pipe
An additive composition effective in the release of stuck pipe in a borehole during a drilling operation which composition contains propoxylated C18 -C32 alkanols, an oil-soluble emulsifier-wetting...
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4322306 |
Retarding acidizing fluids
Methods of chemically retarding the reaction rates of acidizing fluids on calcareous formations and chemically retarded acidizing compositions are provided.
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4290901 |
Demulsifier for inclusion in injected acidization systems for petroleum formation stimulation
The formation of stable oil-in-water emulsions in produced fluids from wells undergoing acidization treatment is prevented by the inclusion within the injected acidization chemical mixture of a...
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4146499 |
Method for preparing microemulsions
A unique method for the preparation of oil-in-water microemulsions is described. In carrying out this method, microemulsions are prepared in a four-step process: (1) a surfactant is selected which...
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3989632 |
Method of conducting drilling operations
A method for reducing the loss of fluid through the walls of a well penetrating a permeable subterranean formation during completion, workover and other operations. The method provides for the use...
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3979304 |
Method for drilling and treating subterranean formations using a low fluid loss agent
Well drilling, completion and workover operations, hydraulic fracturing, acidizing, and other well treating operations are improved by the addition to the drilling or treating fluid of an...
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3979305 |
Low fluid loss additive composition
An oil-soluble, water-insoluble low fluid loss additive composition comprising a particulated, homogeneous solid solution of (1) wax; (2) an oil-soluble polyhydroxy higher fatty acid partial ester...
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3882029 |
WELL COMPLETION AND WORKOVER FLUID
A non-damaging well completion and workover fluid comprising a dispersion of finely divided, slowly oil-soluble, water-insoluble solid particles in an aqueous salt solution containing chrome...
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3625859 |
CORROSION INHIBITING COMPOSITION
Fatty acid addition salts of amines of the formula ##SPC1## Wherein R and R' are inert radicals and together may form a methylene chain and n is 2, 3, 4 or 5, and compositions containing such salts...
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3601194 |
LOW FLUID LOSS WELL-TREATING COMPOSITION AND METHOD
A low loss well-treating composition comprising an aqueous mixture of solid wax or wax-polymer particles and a surfactant specifically selected for its ameliorating effect upon the low fluid loss...
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3809655 |
CORROSION-INHIBITING COMPOSITIONS CONTAINING DIALKYL SULFIDES OR SULFOXIDES
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3679582 |
FLOW IMPROVEMENT OF WAXY HYDROCARBON WITH THE AID OF POLYSACCHARIDE DERIVATIVES
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3711405 |
LOW FLUID LOSS WELL TREATING COMPOSITION AND METHOD
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3753903 |
WELL COMPLETION AND WORKOVER FLUID
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3658720 |
CORROSION INHIBITING COMPOSITION CONTAINING ACETYLENIC ALCOHOLS A QUINOLINE QUATERNARY COMPOUND AND AN ORGANIC FLUORIDE
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3689410 |
DRY MIX FOR CHALK-STABILIZED EMULSION
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3437146 |
METHOD OF REMOVING PARAFFIN FROM A WELL WITH HEATED SOLVENT
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3421582 |
SECONDARY OIL RECOVERY PROCESS
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3128314 |
Oxyalkylated condensates
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3098038 |
Treatment of subsurface earth formations
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3017353 |
Process for providing a solid body with a protective film
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3017354 |
Oil well inhibitor
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3014863 |
Preparation of well completion and servicing fluid
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2982724 |
Hydraulic fluids for pressure treatment of oil bearing formation
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2898294 |
Well completion fluids
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2876839 |
Fracturing formations with a volatile fluid
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2865453 |
Well treatment to remove a water block
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2860103 |
Making gelled hydrocarbons
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2836559 |
Process for controlling wax deposition
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