Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 8163678 | Enhanced oil recovery surfactant formulation and method of making the same The present invention is directed to an enhanced oil recovery formulation which comprises: (a) an alkylaromatic sulfonate; (b) an isomerized olefin sulfonate (c) a solvent; (d) a p... | 04/24/2012 |
| 7915205 | Single fluid acidizing treatment An acidizing formulation for use in the stimulation of hydrocarbon production is stable when packaged and stored as a single fluid for periods exceeding one year. The formulation contains a miscibility solvent which substantially prevents any phase separation betwee... | 03/29/2011 |
| 7544639 | Composition and process for the treatment of hydrogen sulfide Disclosed is a method for the treatment of hydrogen sulfide. The method preferably includes forming a solvent-surfactant blend, preparing a microemulsion by combining the solvent-surfactant blend with a carrier fluid and contacting the hydrogen sulfide with the micr... | 06/09/2009 |
| 7405183 | Methods and compositions for crosslinking polymers with boronic acids The present invention provides a method of forming a viscosified treatment fluid comprising: providing a treatment fluid that comprises water and a gelling agent; contacting the treatment fluid with a boronic acid crosslinking agent so as to form a crosslinked gelli... | 07/29/2008 |
| 7380606 | Composition and process for well cleaning Disclosed is a microemulsion well treatment microemulsion that is formed by combining a solvent-surfactant blend with a carrier fluid. In preferred embodiments, the solvent-surfactant blend includes a surfactant and a solvent selected from the group consisting of te... | 06/03/2008 |
| 7338924 | Oil-in-water-in-oil emulsion An oil-in-water-in-oil emulsion (O/W/O) comprising a first oil-in-water emulsion dispersed in a second oil, and a method of preparing the same. The O/W/O emulsion can be used as a drive fluid in an enhanced oil recovery process. The O/W/O emulsion of this invention ... | 03/04/2008 |
| 7326670 | Well service fluid and method of making and using the same A well service fluid comprising one or more anionic viscoelastic surfactants and one or more polymers is described. The fluids can contain an aqueous or non-aqueous fluid and/or a buffer for adjusting the pH of the fracturing fluid. The well service fluid can be use... | 02/05/2008 |
| 7296627 | Method for simultaneous removal of asphaltene, and/or paraffin and scale from producing oil wells A method for cleaning oil wells to increase the flow of oil thereof by use of a unique aqueous cleaning emulsion comprising of water, hydrocarbon solvent, detergent and mineral acid. This one step method provides for the simultaneously cleaning/removal of asphaltine... | 11/20/2007 |
| 7270184 | Method of well treatment The invention provides a method of well treatment comprising introducing into the matrix surrounding a hydrocarbon well bore hole an emulsion the discontinuous phase of which comprises a non-polymerizable, water or oil miscible liquid carrier, a polymerizable monome... | 09/18/2007 |
| 7238649 | Powder composition A powder composition comprising viscoelastic surfactant forms, in aqueous solution, a viscoelastic wellbore treatment fluid. ... | 07/03/2007 |
| 7163056 | Esterquat acidic subterranean treatment fluids and methods of using esterquats acidic subterranean treatment fluids The present invention relates to acidic treatment fluids that comprise an acid fluid and an ester-containing quaternary ammonium compound (“esterquat”) and methods of their use. One embodiment of the present invention provides a method of inhibiting metal corros... | 01/16/2007 |
| 7122507 | Drilling fluids and method of drilling Drilling, completing or workover of a well, particularly an oil and/or gas well, is carried out using a fluid which includes a continuous phase including an ester of the formula (I): (R2)p-Ph-(CH2)m—COO-(AO)n-... | 10/17/2006 |
| 6984610 | Acid based micro-emulsions of surfactants and solvents Acid based micro-emulsions are disclosed comprising water, an acid blend, an anionic surfactant, a nonionic surfactant, a co-solvent, a solvent and an oxidizer. The micro-emulsions have particular utility in cleaning oil sludges and drilling mud residues from well c... | 01/10/2006 |
| 6887834 | Methods and compositions for consolidating proppant in subterranean fractures Improved methods and compositions for consolidating proppant in subterranean fractures are provided. In accordance with a method of the invention, proppant particles coated with a furfuryl alcohol resin composition are mixed with a gelled liquid fracturing fluid and... | 05/03/2005 |
| 6884760 | Water based wellbore fluids The invention relates to water based wellbore fluids used during a hydrocarbon recovery process, such as drilling, fracturing, gravel packing and wellbore workover. According to the present invention, said wellbore fluid comprises a fluid loss additive and a bridgin... | 04/26/2005 |
| 6849581 | Gelled hydrocarbon compositions and methods for use thereof Gelled organic compositions and methods for using same. The gelled compositions may be liquid organic fluids, such as gelled liquid hydrocarbons, formed from a mixture of an organic-base fluid, a carboxylic acid, and one or more metal source compounds, such as a met... | 02/01/2005 |
| 6849582 | Method of oil/gas well stimulation Stimulation, particularly fracturing or acidising, of hydrocarbon wells having bores leading to hydrocarbon bearing uses a fluid including a continuous phase of or including a compound of the formula (1): (R2)p—Ph—(CH2)m | 02/01/2005 |
| 6803347 | Additive for wellbore fluids A low molecular weight, high melting point, crystalline, oil soluble additive for use in wellbore fluids is provided that is preferably a ground crystalline material of melting point over 80° C., preferably over 100° C. which is readily soluble in produced hydroca... | 10/12/2004 |
| 6593279 | Acid based micro-emulsions Acid based micro-emulsions are disclosed comprising water, an acid blend, an anionic surfactant, a nonionic surfactant, a co-solvent, a solvent and an oxidizer. The micro-emulsions have particular utility in cleaning oil sludges and drilling mud residues ... | 07/15/2003 |
| 6593278 | Method for inhibiting corrosion using certain phosphorus and sulfur-free compounds The present invention relates to a method for inhibiting corrosion of corrosion-prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of certain sulfur and phosphorus-free aromatic compound... | 07/15/2003 |
| 6583091 | Method for inhibiting corrosion using 4-sulfophthalic acid The present invention relates to a method for inhibiting high temperature corrosion of corrosion prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of 4-sulfophthalic acid, typically up ... | 06/24/2003 |
| 6537950 | Method for inhibiting corrosion using triphenylstibine The present invention relates to a method for inhibiting high temperature corrosion of corrosion prone metal surfaces by organic acid-containing petroleum streams by providing an effective corrosion-inhibiting amount of triphenylstibine, typically up to 1... | 03/25/2003 |
| 6534449 | Removal of wellbore residues A wellbore fluid composition effective to reduce oil-containing residue and water wet wellbore surfaces is provided. The fluid composition comprises a terpene composition and a surfactant. Methods for use of the fluid composition as a single spacer or as ... | 03/18/2003 |
| 6467492 | Corrosion inhibitors A method of preventing corrosion in pipelines comprising draining pipeline of all residual compounds, blowing through with nitrogen and rinsing with a corrosion inhibiting rinsing agent.... | 10/22/2002 |
| 6117364 | Acid corrosion inhibitor An acid corrosion inhibitor composition is provided for petroleum wells and water wells subjected to stimulation with acid solutions. The inhibitor combines cinnamaldehyde and an organo-sulfur compound. The inhibitor provides a reduced rate of corrosion a... | 09/12/2000 |
| 5827803 | Well treatment fluid A well treatment fluid comprising a mixture of (A) a major amount of a first hydrocarbon fluid, the first hydrocarbon fluid being composed predominantly of diaromatics and triaromatics having more than 16 carbon atoms, and (B) a minor amount of a second h... | 10/27/1998 |
| 5773390 | Chemical additive for removing solids from a well drilling system A chemical additive for cleaning a well drilling system and equipment includes an alcohol, preferably a terpene, and either an ether amine or a base fluid or combination of the two. The additive can be mixed with an aqueous solution that may be a water, s... | 06/30/1998 |
| 5710111 | Solids-free wellbore fluid Solids-free, essentially all-oil and invert emulsion wellbore fluids are employed in well drilling, completion, and workover operations. Techniques for remediating dense aromatic solvents wellbore fluids entail removal and/or dissolution of particulate ma... | 01/20/1998 |
| 5696058 | Solids-free, essentially all-oil wellbore fluid A solids-free, essentially all-oil wellbore fluid comprises an organic fluid having (i) a melting point less than about 20° C. (about 68° F.), (ii) a flash point greater than about 54.4° C. (about 130° F.), and (iii) a dipole moment greater than 0 deb... | 12/09/1997 |
| 5690176 | Composition effective in removing asphaltenes Process for the dissolution of asphaltene sediments in oil wells which consists in introducing a solubilizing composition for the above asphaltenes into the oil wells, characterized in that the solubilizing composition comprises: (a) a basically hydrocarb... | 11/25/1997 |
| 5678631 | Process for removing solids from a well drilling system A process for cleaning a well system and equipment has been developed using a chemical additive that includes an alkene alcohol, preferably a terpene, and either an ether amine or base fluid or combination of the two. The additive can be used in an aqueou... | 10/21/1997 |
| 5676763 | Process for cleaning pipe dope and other solids from well systems An improved chemical composition and process for cleaning pipe dope from wellbores has been established. The chemical composition is of an aliphatic hydrocarbon and/or esters with a biodegradable water insoluble monoterpene preferably having a flash point... | 10/14/1997 |
| 5622919 | Composition and method for controlling precipitation when acidizing wells A composition and method for acidizing a formation in the presence of ferric ion, free sulfur and/or sulfides is disclosed. The composition employs a ferric ion reducing agent and a sulfide reactant separately or in combination. The ferric ion reducing ag... | 04/22/1997 |
| 5441928 | Aqueous gellable composition containing an anti-syneresis agent An aqueous gellable composition capable of producing gels resistant to syneresis in the presence of divalent ions, contains: a water-soluble acrylamide polymer or copolymer, a crosslinking agent formed by a water-soluble aldehyde, or a water-soluble aldehyde a... | 08/15/1995 |
| 5438039 | Effective hydrocarbon blend for removing asphaltenes from oil wells Particular hydrocarbon composition constituted by saturated species, alkylbenzenes and polyaromatics, useful for dissolving asphaltenic residues present in oil wells.... | 08/01/1995 |
| 5366643 | Method and composition for acidizing subterranean formations The invention relates to a method and composition for acidizing a subterranean formation employing an acidic solution comprising hydrochloric acid solution containing a corrosion inhibitor present in a corrosion-reducing effective amount. The corrosion in... | 11/22/1994 |
| 5292480 | Acid-anhydride esters as oil field corrosion inhibitors A corrosion inhibitor with excellent film forming and film persistency characteristics may be produced by first reacting C18 unsaturated fatty acids with maleic anhydride or fumaric acid to produce the fatty acid Diels-Alder adduct or the fatty... | 03/08/1994 |
| 5174957 | Emulsion minimizing corrosion inhibitor for naphtah/water systems A corrosion inhibitor formulation for oil and water systems which formulation is resistant to sludge formation and does not tend to stabilize oil/water emulsions when added to oil and water systems. The corrosion inhibitor includes an imidazoline dissolve... | 12/29/1992 |
| 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 partial ester. The partial ester is reacted with imidazoline ... | 12/29/1992 |
| 5160643 | Method for delaying the gellation of borated galactomannans with a delay additive such as glyoxal A complexor and method of use are shown for providing controlled delay of the cross-linking reaction in an aqueous well fracturing fluid. A base fluid is first prepared by blending together an aqueous fluid and a hydratable polymer which is capable of gel... | 11/03/1992 |
