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7635667 |
Multi-component drilling fluid additive, and drilling fluid system incorporating the additive
Multi-component additive for incorporation into a drilling fluid, and a drilling fluid system comprising said multi-component additive. The additive preferably comprises three primary components:...
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7629297 |
Lost circulation composition
A composition of matter and a method of sealing a permeable formation is provided incorporating the composition to reduce or eliminate lost circulation in permeable formations. The composition...
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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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7622430 |
Delayed-gelation solution
The invention concerns an aqueous delayed-gelation solution for use in hydrocarbon wells. According to the invention, the aqueous delayed-gelation solution a dissolved metal salt which, in use,...
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7618927 |
Increased rate of penetration from low rheology wellbore fluids
A method of increasing a rate of penetration when drilling as compared to drilling with a baseline drilling fluid comprising an API-grade barite weighting agent and having a given sag, settling...
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7615518 |
Composition for denaturing and breaking down friction-reducing polymer and for destroying other oil well contaminants
A composition and method for breaking down and denaturing friction-reducing compound introduced into the ground during the drilling of oil wells and for destroying other contaminants and biohazards...
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7612021 |
Methods and compositions utilizing lost-circulation materials comprising composite particulates
Disclosed embodiments relate to compositions and methods for using a composite particulate comprising a cellulosic fiber and a filler as a lost-circulation material. An example of a method of...
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7612023 |
Method and composition for forming protective precipitate on cement surfaces prior to formation acidizing treatment
A method and composition for protecting cement surfaces in a well bore treatment zone from the destructive effects of acid mud and other acidization processes commonly used to stimulate hydrocarbon...
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7607484 |
Foamed cement compositions comprising oil-swellable particles and methods of use
Of the many compositions and methods provided herein, an embodiment of a method comprises introducing a foamed cement composition into a subterranean formation, wherein the foamed cement...
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7598208 |
Filter cake degradation compositions and methods of use in subterranean operations
The present invention relates to methods and compositions for degrading filter cakes in subterranean formations, and more specifically, to improved methods and compositions for degrading filter...
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7598209 |
Porous composites containing hydrocarbon-soluble well treatment agents and methods for using the same
Composites containing a hydrocarbon-soluble well treatment agent may be supplied to a well using a porous particulate. Such well treatment agents may for example inhibit the formation of paraffins,...
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7595282 |
Methods and compositions of controlling the rheology of a diutan-containing well treatment fluid at high temperatures
The invention provides a method for treating a subterranean formation penetrated by a wellbore, the method comprising the steps of formulating a treatment fluid and introducing the treatment fluid...
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7579302 |
Friction reducer performance by complexing multivalent ions in water
Embodiments relate to improving the performance of anionic friction reducing polymers in water containing multivalent ions. Exemplary embodiments relate to methods of improving the performance of...
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7576040 |
Cement compositions comprising humic acid grafted fluid loss control additives
Exemplary embodiments of the cement compositions comprise water, a cement, and a fluid loss control additive, the fluid loss control additive comprising a graft copolymer. The graft copolymer...
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7576041 |
Bromine-based sulfamate stabilized breaker composition and process
A process for reducing the viscosity of fracturing fluids in downhole oilfield operations is provided. The process comprises contacting a sulfamate stabilized, bromine-based breaker with an aqueous...
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7566686 |
Shale inhibition additive for oil/gas down hole fluids and methods for making and using same
An under-balanced drilling fluid additive is disclosed which reduces reactive shale and/or clay swelling during under-balanced drilling operations, where the additive includes an effective amount...
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7559369 |
Well treatment composition and methods utilizing nano-particles
Disclosed embodiments relate to well treatment fluids and methods that utilize nano-particles. Exemplary nano-particles are selected from the group consisting of particulate nano-silica,...
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7550413 |
Fluid loss control agents for viscoelastic surfactant fluids
Alkaline earth metal compounds may be fluid loss control agents for viscoelastic surfactant (VES) fluids used for well completion or stimulation in hydrocarbon recovery operations. The VES fluid...
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7544642 |
Zeolite-containing remedial compositions
Methods and compositions for wellbore treating fluids that include zeolite and at least one carrier fluid.
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7544641 |
Rapid setting plugging compositions for sealing subterranean formations
Rapid setting plugging compositions comprising oil, clay, magnesium chloride, and magnesium oxide powder are provided for sealing permeable zones in subterranean formations. The permeable zones may...
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7544640 |
Zeolite-containing treating fluid
Methods and compositions are provided for treating fluids, especially spacer fluids and cement compositions as well as drilling, completion and stimulation fluids including, but not limited to,...
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7530394 |
Cement compositions for low temperature applications
A method of servicing a wellbore comprising placing in the wellbore a cement composition comprising light-burned magnesium oxide, water and an alkaline metal chloride, and allowing the composition...
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7528096 |
Structured composite compositions for treatment of subterranean wells
A structured composite is comprised of particulates having particle size distribution of at least two modes and a binder. The particle size distribution is preferably bi-modal or tri-modal. The...
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7517836 |
Defoaming methods and compositions
Embodiments of the present invention are directed to defoaming methods and compositions for well treatment fluids. An exemplary embodiment of the present invention provides a method of defoaming a...
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7514391 |
Method and composition for removing filter cake from a horizontal wellbore using a stable acid foam
A composition and method for removing a filter cake from a horizontal wellbore in a subterranean formation using a composition containing a inorganic or organic acidic material, a cationic...
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7514390 |
Method for removing filter cake from a horizontal wellbore using acid foam
A composition and method for removing a filter cake from a horizontal wellbore in a subterranean formation using a composition containing a inorganic or organic acidic material, a cationic...
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7493955 |
Well treating compositions for slow release of treatment agents and methods of using the same
A composite of a well treatment agent adsorbed onto a water-insoluble adsorbent is useful in the treatment of oil and gas wells and may be introduced, as a well treatment fluid, with a carrier...
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7488705 |
Oilwell sealant compositions comprising alkali swellable latex
Sealant compositions comprising an alkali swellable latex and a pH increasing material and methods of using the same to service a wellbore are provided. In one embodiment, the sealant composition...
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7468469 |
Dissolved oxygen releasing compound
A dissolved oxygen releasing blend is disclosed utilizing magnesium peroxide blended with powdered Bentonite and/or vegetable oil. The Bentonite (or other clay material) reduces the hydraulic...
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7462581 |
Treatment fluids comprising starch and ceramic particulate bridging agents and methods of using these fluids to provide fluid loss control
Compositions relating to fluid loss control operations are provided. In some embodiments, fluid loss treatment fluid compositions are provided that may comprise ceramic particulate bridging agents,...
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7461697 |
Methods of modifying particulate surfaces to affect acidic sites thereon
Methods comprising: providing a treatment fluid that comprises a base fluid and a least a plurality of coated particulates, the coated particulates having been treated with a surface modification...
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7459209 |
Composition and method for making a proppant
The present invention relates to proppants which can be used to prop open subterranean formation fractions. Proppant formulations are further disclosed which use one or more proppants of the...
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7449431 |
Additive for increasing the density of a fluid for casing annulus pressure control
A method of controlling the pressure of a casing annulus in a subterranean well that includes injecting into the casing annulus a composition including a base fluid and a polymer coated colloidal...
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7441599 |
Controlling the pressure within an annular volume of a wellbore
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 is preselected to...
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7419939 |
Mineral acid enhanced thermal treatment for viscosity reduction of oils (ECB-0002)
The invention describes a method for decreasing the viscosity of crude oils and residuum utilizing a combination of thermal and acidic treatment. Further, the invention describes a method for...
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7409994 |
Drilling well with drilling fluid of fluid phase and weighting agent
An additive that increases the density of fluids used in a wellbore during the construction or repair of oil, gas, injection, water, or geothermal wells comprises In one illustrative embodiment the...
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7405182 |
Composition for decreasing lost circulation during well operation
A method is provided for reducing lost circulation when aqueous, oil, or synthetic based drilling fluid is used. The method includes injecting two fluids into the well bore and lost circulation...
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7392846 |
Silicate-containing additives for well bore treatments and associated methods
Methods and compositions for use in subterranean operations, and more particularly, additives comprising one or more silicates used to treat tar resident in a well bore, and methods of use, are...
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7393813 |
Water-based drilling fluids using latex additives
A water-based drilling fluid having a polymer latex capable of providing a deformable latex film on at least a portion of a subterranean formation has been discovered to provide reduced drilling...
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7387985 |
Monovalent cation-containing well fluids
A monovalent cation containing well fluid composed of an aqueous brine containing at least 0.6 equivalents per liter of a water soluble monovalent cation salt, is substantially free of divalent...
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7350576 |
Methods of sealing subterranean formations using rapid setting plugging compositions
Methods for using rapid setting plugging compositions comprising oil, clay, magnesium chloride, and magnesium oxide powder to seal permeable zones in subterranean formations are provided. The...
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7351681 |
Well bore servicing fluids comprising thermally activated viscosification compounds and methods of using the same
Well bore servicing fluids are provided that include a thermally activated viscosification compound. Further, methods of servicing a well bore are provided that include displacing such a servicing...
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7341106 |
Methods for wellbore strengthening and controlling fluid circulation loss
A sealant composition and methods for using the same are disclosed. In an embodiment, a method of servicing a wellbore in contact with a subterranean formation is disclosed. The method comprises...
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7341107 |
Viscoelastic acid
An acidic viscoelastic surfactant fluid composition is formulated with an acid, for example hydrochloric acid, a cationic surfactant, for example a quaternary amine, and a break-enabling salt, for...
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7338922 |
Process fluid
A water-based, shear-thinning process fluid comprises bentonite, aluminium hydroxide particles, and salt. The median diameter (by weight) of the aluminium hydroxide particles does not exceed 2 μm.
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7338923 |
Settable drilling fluids comprising cement kiln dust
Settable drilling fluids that comprise an aqueous-based drilling fluid and cement kiln dust. Methods of cementing in a subterranean formation that comprise providing a settable drilling fluid...
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7297664 |
Cement-free zeolite and fly ash settable fluids and methods therefor
Zeolite and Class F fly ash compositions are provided for use as cement-free settable fluids such as settable spotting fluids and cementitious compositions.
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7297663 |
Method of decreasing lost circulation during well operations and additive therefor
The invention discloses an additive for weighted aqueous slurries to reduce lost circulation during well drilling operations, a method of preparing the additive, and a method of reducing lost...
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7273832 |
Alkali metal tungstate compositions and uses thereof
Fluids, such as completion fluids, containing at least one alkali metal tungstate and optionally at least one chelating agent are described. Methods of removing a filter cake from a well bore...
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7262154 |
Methods and compositions for breaking viscosified fluids
Improved methods for treating and for fracturing subterranean formations and the fluid compositions are provided. The viscosity of a treating fluid containing gelling agents is broken, even at...
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