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7534745 |
Gelled invert emulsion compositions comprising polyvalent metal salts of an organophosphonic acid ester or an organophosphinic acid and methods of use and manufacture
The present invention relates to emulsion compositions and associated methods. More particularly, the present invention relates to gelled invert emulsion compositions and their associated methods...
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7510005 |
Controlling pressure and static charge build up within an annular volume of a welllbore
A process is described for replacing at least a portion of the liquid within the annular volume of a casing system within a wellbore with a second liquid. The second liquid comprising at least one...
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7448451 |
Methods for controlling migration of particulates in a subterranean formation
Methods of controlling particulate migration in a portion of a subterranean formation comprising placing a pre-flush fluid into the portion of the subterranean formation; and then, placing a...
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7419937 |
Method for providing treatment chemicals in a subterranean well
A method of delivering chemicals such as scale inhibitor into a wellbore producing fluids includes providing the chemicals, in a slow-release form, in a container located in the path of the...
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7395863 |
Method of treating a subterranean formation with an oil-based composition containing a polysaccharide-based water-superabsorbent material
A well treating composition containing a polysaccharide-based water-superabsorbent material has particularly applicability as a thermal insulating, fracturing or acid stimulation fluid. The...
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7261158 |
Coarse-foamed fracturing fluids and associated methods
A method of fracturing a subterranean formation comprising the steps of: providing a coarse-foamed fracturing fluid comprising a liquid fracturing fluid component, a gas, proppant particulates, and...
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7261157 |
Methods of controlling particulate segregation in slurries
Methods for controlling particulate segregation comprising providing a mixture of an aqueous tackifying composition with a treatment fluid; slurrying the mixture with a first type of solid...
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7238646 |
Invertible well bore servicing fluid
A method for using an invert emulsion fluid in a well bore, comprising placing an invert emulsion fluid in a well bore, wherein the invert emulsion fluid comprises an oleaginous fluid, a...
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7188676 |
Method for displacing oil base drilling muds and/or residues from oil base drilling mud using water-in-oil emulsion
Fluid producing wells may be treated with a water-in-oil emulsion for the removal or inhibition of unwanted solid particulates, including pipe dope, asphaltenes and paraffins. Such emulsions are of...
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7168490 |
Optimized hydrocarbon blends and methods of using optimized hydrocarbon blends
The present invention relates to servicing fluids for use in subterranean operations. More particularly, the present invention relates to improved servicing fluids comprising optimized hydrocarbon...
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7163060 |
Difunctional phosphorus-based gelling agents and gelled nonaqueous treatment fluids and associated methods
The present invention provides methods of treating a portion of a subterranean formation, one of which includes: providing a gelled nonaqueous treatment fluid that comprises a nonaqueous base fluid...
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7084094 |
Process for altering the relative permeability if a hydrocarbon-bearing formation
A process for treating a hydrocarbon-bearing formation having at least one hydrocarbon bearing zone and at least one water bearing zone wherein the ratio of the permeability of the hydrocarbon...
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7017665 |
Strengthening near well bore subterranean formations
The present invention relates to improved methods for completing well bores along producing zones and, more particularly, to methods for strengthening near well bore subterranean formations. Some...
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6995120 |
Scale control composition for high scaling environments
Barium sulfate and/or calcium carbonate scale inhibitor composition composed of a water-soluble polymer having incorporated phosphate functionality, the polymer being formed from at least one...
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6903054 |
Reservoir treatment fluids
A method of treating a hydrocarbon-containing formation is disclosed. The method includes injecting a well treating fluid into a well, wherein the well treating fluid includes a self-diverting acid...
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6866797 |
Corrosion inhibitors and methods of use
A class of quaternary ammonium compounds are found to be effective as corrosion inhibitors. These quaternary ammonium compounds may be used alone or in combination with additional components. For...
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6770603 |
Electrically conductive non-aqueous wellbore fluids
A wellbore fluid having a non-aqueous continuous liquid phase that exhibits an electrical conductivity increased by a factor in order of 10 4 to 10 7 compared to conventional invert emulsion...
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6602828 |
Refined oil gelling system
A fracturing fluid is provided for use in fracturing subterranean formations. It comprises a hydrocarbon base. In the base, acidified alkyl phosphate esters are complexed with metallic cations, to...
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6387137 |
Hydrocarbon gels
Liquid hydrocarbons are gelled by the introduction of a phosphate ester and a crosslinking agent. Gelling times and viscosities are improved through the use of an enhancer which is, preferably, an...
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6342468 |
Hydrocarbon gelling compositions useful in fracturing formations
The invention relates to compositions and methods for gelling liquid hydrocarbons by the introduction of certain phosphate esters, a crosslinking agent, and an enhancer. The enhancer of the present...
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6297201 |
Hydrocarbon gelling compositions useful in fracturing formation
The invention relates to compositions and methods for gelling liquid hydrocarbons by the introduction of certain phosphate esters, a crosslinking agent, and an enhancer. The enhancer of the present...
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6187720 |
Delayed release breakers in gelled hydrocarbons
Granules composed of a particulate breaker chemical dispersed in a wax matrix are used in fracturing operations to break hydrocarbon liquids gelled with salts of alkyl phosphate esters. The wax...
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6184184 |
Encapsulated breaker for oil gel system
An encapsulated breaker for a fracturing fluid for use in fracturing subterranean formations comprising: a hydrocarbon base; neutralized alkyl phosphate esters completed with metallic cations, to...
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6149693 |
Hydrocarbon gels useful in formation fracturing
Liquid hydrocarbons are gelled by the introduction of a phosphate ester and a crosslinking agent. Gelling times and viscosities are improved through the use of an enhancer which is, preferably, an...
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6147034 |
Gelling agent for hydrocarbon liquid and method of use
This invention is directed to a gelling agent composition comprising the reaction product of a high molecular weight gelling agent additive, a low molecular weight phosphate diester acid, and a...
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6054417 |
Rapid gel formation in hydrocarbon recovery
Method and composition for gel formation in hydrocarbon recovery, in which an organic phosphate ester is gelled by a novel activator composition comprising iron sulfate, dibutylaminoethanol, and a...
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5948735 |
Use of breaker chemicals in gelled hydrocarbons
Oil degradable encapsulated breaker particles are used in fracturing operations to break hydro-carbon liquid gelled with salts of alkyl phosphate esters. The preferred breaker chemical is...
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5846915 |
Delayed breaking of gelled hydrocarbon fracturing fluid
Hydrocarbon fracturing fluids are made by combining organic phosphate esters with polyvalent metal salts in hydrocarbon carriers to form gels; breaking of the gel is retarded or otherwise...
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5807812 |
Controlled gel breaker
Hydrocarbon fracturing fluids are made by combining organic phosphate esters with polyvalent metal salts in hydrocarbon carriers to form gels; breaking of the gel is retarded or otherwise...
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5753596 |
Methods and emulsions for inhibition of oil well corrosion
A novel method for inhibiting oxygen corrosion in an oil well, and an emulsion useful therein. The method comprises introducing into the well a pourable emulsion comprising about 50 to about 95...
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5746973 |
Method for reducing odorant depletion
Odorant depletion is reduced by passivating the internal surface of LP-gas transportation and storage vessels by the addition of passivating agents comprising mixtures of corrosion inhibitors such...
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5693837 |
Ferric alkyl amine citrates and methods of making them
This invention relates to improved hydrocarbon gels which find use in the fracturing of petroleum producing formations. In particular it relates to the use of a defined class of gelling agents for...
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5649596 |
Use of breaker chemicals in gelled hydrocarbons
Oil degradable granules containing particulate breaker chemical is used in fracturing operations to break hydrocarbon liquid gelled with salts of alkyl phosphate esters. The preferred breaker...
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5647900 |
Preparation of hydrocarbon gels from ferric sources, polycarboxylic acid compounds, and optional amines, in combination with phosphate esters
This invention relates to improved hydrocarbon gels which find use in the fracturing of petroleum producing formations. In particular it relates to the use of a define class of gelling agents for...
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5624886 |
Controlled degradation of polysaccharides
A method is shown for fracturing a subterranean formation in which a hydratable polymer, crosslinking agent and breaker are combined in an aqueous carrier to form a gelled fracturing fluid. The...
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5611992 |
Corrosion inhibitor blends with phosphate esters
The present invention relates to blends of individual corrosion inhibitors with phosphate esters for protection of ferrous metals against attack by a corrosive environment. These blends are...
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5611991 |
Corrosion inhibitor containing phosphate groups
The present invention relates to a specific type of phosphate ester that is as effective or more effective than corrosion inhibitors available in the past. In accordance with the invention, these...
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5520251 |
Method for acidizing oil producing formations
An improved method for preventing iron precipitation from a spent oil well acidizing solution is disclosed. The acidizing solution is preceded into the tubular goods and formation by the injection...
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5514645 |
Method of gelling hydrocarbons and fracturing subterranean formations
The present invention provides a method of treating a subterranean formation by rapidly viscosifying a normally liquid hydrocarbon. The method is accomplished by admixing (i) an alkyl...
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5271464 |
Temporary plugging agent
The present invention provides a method of temporarily plugging or sealing a subterranean formation by introducing a rapidly viscosifying liquid hydrocarbon into the formation. The method is...
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5202035 |
Liquid aluminum phosphate salt gelling agent
A liquid aluminum phosphate salt gelling agent comprising the reaction product of: a dialkyl phosphate formed from the reaction product of (1) a polyphosphate intermediate produced by reacting...
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5190675 |
Gelling organic liquids
A method of producing a gel of an organic liquid, using a metal phosphate ester in which all of the reagents are substantially free of water and pH-affecting substances. The gel is particularly...
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5089150 |
Method of increasing retention of scale inhibitors in subterranean formations
A novel method of injecting or squeezing a cross-linked scale inhibitor down a well into a subterranean formation which significantly lengthens its effective life is accomplished by cross-linking a...
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5057233 |
Hydrocarbon geller and method for making the same
An improved hydrocarbon gelling agent is disclosed comprising the reaction product of (1) a polyphosphate intermediate produced by reacting triethyl phosphate and phosphorous pentoxide and (2) a...
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5038864 |
Process for restoring the permeability of a subterranean formation
A process for restoring the injectivity of a well penetrating and in fluid communication with a subterranean formation wherein an aqueous treating solution comprising a mixture of an aqueous...
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5034139 |
Polymer composition comprising phosphorous-containing gelling agent and process thereof
Water absorbent polymers provided, in the form of a thixotropic hydrocarbon gel, demonstrate controlled water absorption. This property enables improved usage of such polymers in the reduction of...
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5003060 |
Readily dispersed/dissolved porous biopolymer granules
Solid, free-flowing and nondusting porous biopolymer, e.g., xanthan gum, granules are produced in fluidized bed and are quickly dispersed/dissolved in aqueous media for use as thickening agents for...
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4990269 |
Surface active compound, a microemulsion containing said compound and the use thereof
A surface active compound for use in microemulsions useful in oil recovery, wood impregnating, dry cleaning, cleaning of hard surfaces and for floor polishing, which has one hydrophobic group,...
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4956104 |
Organophilic polymers
Organophilic polymer adducts which are effective fluid loss control additives for oil base well-working fluids are prepared from an anionic or cationic water soluble polymer and one or more...
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4886609 |
Method for stimulation of oil and gas wells
A method for the removal of scale from the interior of producing oil and gas wells is disclosed. The method comprises introducing a mixture of an aqueous mineral acid, a mutual solvent, and an...
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