| Patent Number |
Title Of Patent |
Date Issued |
| RE31190 |
Oil well cementing process |
March 29, 1983 |
| Oil well cementing compositions and processes are produced using a high efficiency sulfoalkylated lignin retarder composition and modifications thereof to produce cement compositions without gelation problems, having high early strength and with precisely controllable setting time. |
| 7413014 |
Foamed fly ash cement compositions and methods of cementing |
August 19, 2008 |
| Methods of cementing and low density foamed cement compositions therefor are disclosed. A low density foamed cement composition of the invention comprises fly ash comprising calcium oxide or calcium hydroxide, water present in an amount sufficient to form a slurry, a foaming and foam |
| 7407916 |
Foamed treatment fluids and associated methods |
August 5, 2008 |
| Foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising an alkali salt of an alkyl ether sulfate, wherein the alkali salt of the alkyl ether sulfate comprises an alkali salt of a C.sub.6-10 alkyl ether sulfate, and an alkali s |
| 7404855 |
Resilient cement compositions and methods of cementing |
July 29, 2008 |
| Resilient cement compositions and methods of cementing using the compositions are disclosed. A resilient cement composition of the invention comprises hydraulic cement, an aqueous rubber latex and a rubber latex stabilizing surfactant comprising an iso-dodecyl alcohol ether sulfonate |
| 7395860 |
Methods of using foamed settable compositions comprising cement kiln dust |
July 8, 2008 |
| The present invention provides settable compositions that comprise water and cement kiln dust. The settable compositions optionally may comprise an additive that comprises at least one of the following group: fly ash; shale; slag cement; zeolite; metakaolin; and combinations thereof. The |
| 7393814 |
Methods, cement compositions and oil suspensions of powder |
July 1, 2008 |
| Methods, cement compositions and oil suspensions of powders selected from the group consisting of micro-silica, silica flour, fine silica flour, silica sand, fine particle size cement, ultra-fine particle size cement, fly ash, slag, vitrified shale and zeolite. |
| 7388045 |
Cement compositions comprising lignite grafted fluid loss control additives |
June 17, 2008 |
| Novel well cement compositions are provided. Exemplary embodiments of the well cement compositions comprise water, a cement and a fluid loss control additive comprising a graft polymer. The graft polymer comprises a backbone comprising a lignite. The graft polymer further comprises g |
| 7387675 |
Foamed settable compositions comprising cement kiln dust |
June 17, 2008 |
| The present invention provides settable compositions that comprise water and cement kiln dust. The settable compositions optionally may comprise an additive that comprises at least one of the following group: fly ash; shale; slag cement; zeolite; metakaolin; and combinations thereof. The |
| 7381263 |
Cement compositions comprising high alumina cement and cement kiln dust |
June 3, 2008 |
| The present invention provides cement compositions that comprise water, high alumina cement, a soluble phosphate, and cement kiln dust. The cement compositions optionally may be foamed with a gas. Methods of cementing also are provided that comprise: providing the cement composition; |
| 7378377 |
Compositions for preventing coagulation of water-in-oil emulsion polymers in aqueous saline well |
May 27, 2008 |
| Methods of combining water-in-oil emulsion polymers with aqueous saline well treating fluids and compositions are provided. A composition of the invention basically comprises hydraulic cement, an aqueous saline fluid sufficient to form a slurry, a polymer precipitation and coagulation |
| 7363977 |
Prevention of latex inversion in saltwater cement compositions for use in subterranean formation |
April 29, 2008 |
| The prevention of latex inversion in saltwater cement compositions for use in subterranean formations by inclusion of a combination of latex stabilizers and associated methods of cementing. Saltwater cement compositions comprising saltwater, a cement, a latex, a first latex stabilize |
| 7360598 |
Method of using lignite grafted fluid loss control additives in cementing operations |
April 22, 2008 |
| Methods of cementing in a subterranean formation are provided. An exemplary embodiment comprises introducing a cement composition into a subterranean formation. The cement composition comprises water, a cement and a fluid loss control additive comprising a graft polymer. The graft po |
| 7353870 |
Methods of using settable compositions comprising cement kiln dust and additive(s) |
April 8, 2008 |
| The present invention provides settable compositions that comprise water and cement kiln dust. The settable compositions optionally may comprise an additive that comprises at least one of the following group: fly ash; shale; slag cement; zeolite; metakaolin; and combinations thereof. The |
| 7338923 |
Settable drilling fluids comprising cement kiln dust |
March 4, 2008 |
| 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 comprising an aqueous-based drilling fluid and cement kiln dust, introducing the settable drilli |
| 7337842 |
Methods of using cement compositions comprising high alumina cement and cement kiln dust |
March 4, 2008 |
| The present invention provides cement compositions that comprise water, high alumina cement, a soluble phosphate, and cement kiln dust. The cement compositions optionally may be foamed with a gas. Methods of cementing also are provided that comprise: providing the cement composition; |
| 7335252 |
Lightweight settable compositions comprising cement kiln dust |
February 26, 2008 |
| Settable compositions that comprise water, CKD, and microspheres, wherein the lightweight settable composition has a density less than about 13 pounds per gallon. Methods of cementing that comprise providing a lightweight settable composition having a density less than about 13 pound |
| 7311146 |
Subterranean treatment fluids, friction reducing copolymers, and associated methods |
December 25, 2007 |
| Methods of treating a portion of a subterranean formation, comprising: providing an aqueous treatment fluid comprising water, and a friction reducing copolymer that comprises acrylamide and an acrylic acid ester; and introducing the aqueous treatment fluid into the portion of the sub |
| 7308938 |
Defoaming methods and compositions |
December 18, 2007 |
| 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 treating a subterranean formation, comprising introducing a treatment fluid comprising a liquid and a |
| 7287594 |
Foamed treatment fluids and associated methods |
October 30, 2007 |
| Methods of treating subterranean formations using foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising a plurality of alkali salts of alkyl ether sulfates wherein the alkyl group in each of the alkyl ether sulfates has in the |
| 7284609 |
Methods of using settable spotting compositions comprising cement kiln dust |
October 23, 2007 |
| Exemplary embodiments include settable spotting compositions that comprise cement kiln dust and associated methods of use. Exemplary embodiments also include methods that comprise providing a settable spotting composition comprising cement kiln dust; introducing the settable spotting |
| 7278487 |
Methods of using chemical wash compositions for removing drilling fluids |
October 9, 2007 |
| Methods of removing a fluid from a well bore with a chemical wash composition, and more particularly, methods of using chemical wash compositions comprising water, a sulfonated lignin, and a taurate are provided. In one embodiment, a method of at least partially removing a fluid from |
| 7271134 |
Water-based polymers for use as friction reducers in aqueous treatment fluids |
September 18, 2007 |
| Disclosed are methods comprising providing an aqueous polymer dispersion comprising water, an anionic salt, a water-based friction reducing polymer, a polyol, an anionic surfactant, and a nonionic surfactant; mixing the aqueous polymer dispersion with additional water to form an aque |
| 7255170 |
Foamed cement compositions, additives, and associated methods |
August 14, 2007 |
| Exemplary embodiments relate to cementing operations and, more particularly, to foamed cement compositions, foaming and stabilizing additives, and associated methods. A foaming and stabilizing additive, that comprises a mixture of an alkali salt of an alkyl ether sulfate surfactant, |
| 7244303 |
Set retarder compositions, cement compositions, and associated methods |
July 17, 2007 |
| Cement compositions, that comprise water, a cement, a strength-retrogression additive, and an acid, wherein the acid comprises ethylenediamine tetra acetic acid, nitrilotriacetic acid, or a combination thereof, are provided. Methods of cementing in a subterranean formation, methods o |
| 7232793 |
Water-based polymers for use as friction reducers in aqueous treatment fluids |
June 19, 2007 |
| Provided are methods comprising providing an aqueous polymer dispersion comprising water, an anionic salt, a water-based friction reducing polymer, a polyol, an anionic surfactant, and a nonionic surfactant; mixing the aqueous polymer dispersion with additional water to form an aqueo |
| 7229492 |
Cement compositions comprising improved lost circulation materials and methods of use in subterr |
June 12, 2007 |
| Cement compositions that include improved lost circulation materials are provided. In certain exemplary embodiments, the improved lost circulation materials include inelastic particles of polyethylene, polystyrene, and/or polypropylene. Optionally, the cement compositions also may in |
| 7213646 |
Cementing compositions comprising cement kiln dust, vitrified shale, zeolite, and/or amorphous s |
May 8, 2007 |
| Cementing compositions are provided that comprise water, cement kiln dust, vitrified shale, zeolite, and/or amorphous silica, that utilize a packing volume fraction such that the solid particulate materials of the fluid are in a hindered settling state. Methods of cementing are provided |
| 7205263 |
Recyclable foamed fracturing fluids and methods of using the same |
April 17, 2007 |
| Fracturing fluids and methods of fracturing a subterranean formation using such fluids are provided. A fracturing fluid having a first pH is foamed by introducing a gas to the fluid. The fracturing fluid comprises a surfactant that facilitates formation of the foam at the first pH. The |
| 7204310 |
Methods of use settable drilling fluids comprising cement kiln dust |
April 17, 2007 |
| Settable drilling fluids comprising an aqueous-based drilling fluid and cement kiln dust. Methods of cementing in a subterranean formation comprising: providing a settable drilling fluid comprising an aqueous-based drilling fluid and cement kiln dust, introducing the settable drillin |
| 7204307 |
Methods of using settable compositions comprising cement kiln dust |
April 17, 2007 |
| The present invention provides settable compositions that comprise water and cement kiln dust. The settable compositions optionally may comprise an additive that comprises at least one of the following group: fly ash; shale; slag cement; zeolite; metakaolin; and combinations thereof. The |
| 7199086 |
Settable spotting compositions comprising cement kiln dust |
April 3, 2007 |
| Provided herein are settable spotting compositions that comprise cement kiln dust and associated methods of use. Also provided are methods that comprise providing a settable spotting composition comprising cement kiln dust; introducing the settable spotting composition into a well bore t |
| 7174962 |
Methods of using lightweight settable compositions comprising cement kiln dust |
February 13, 2007 |
| Settable compositions that comprise water, CKD, and microspheres, wherein the lightweight settable composition has a density less than about 13 pounds per gallon. Methods of cementing that comprise providing a lightweight settable composition having a density less than about 13 pound |
| 7174961 |
Methods of cementing using cement compositions comprising basalt fibers |
February 13, 2007 |
| Methods of using cement compositions that comprise basalt fibers in subterranean formations are provided. An example of such a method may comprise providing a cement composition that comprises water, a hydraulic cement, and a plurality of basalt fibers; introducing the cement composi |
| 7147705 |
Methods, cement compositions and oil suspensions of powder |
December 12, 2006 |
| Methods, cement compositions and oil suspensions of powders selected from the group consisting of micro-silica, silica flour, fine silica flour, silica sand, fine particle size cement, ultra-fine particle size cement, fly ash, slag, vitrified shale and zeolite. |
| 7143827 |
Well completion spacer fluids containing fibers and methods |
December 5, 2006 |
| Well completion spacer fluids containing fibers and methods of using the spacer fluids are provided. A method of the invention for displacing a first fluid from a well bore with an incompatible second fluid comprises the following steps. A spacer fluid is placed between the first and |
| 7134497 |
Foamed treatment fluids and associated methods |
November 14, 2006 |
| Foamed treatment fluids comprising water, a gas, and a foaming and foam stabilizing surfactant mixture comprising an alkali salt of an alkyl ether sulfate, wherein the alkali salt of the alkyl ether sulfate comprises an alkali salt of a C.sub.6-10 alkyl ether sulfate, and an alkali s |
| 7124822 |
Foamed completion fluids and methods |
October 24, 2006 |
| Foamed completion fluids and methods of completing subterranean zones penetrated by well bores are disclosed. A method of completing a subterranean zone penetrated by a well bore comprises the steps of providing or preparing a foamed completion fluid comprising water, one or more sal |
| 7114569 |
Methods, cement compositions and suspending agents therefor |
October 3, 2006 |
| The present invention includes methods of cementing, cement compositions and a suspending agent comprising boron treated low molecular weight dry ground guar splits. A cement composition of the invention comprises hydraulic cement, water and a boron treated low molecular weight dry g |
| 7108083 |
Apparatus and method for completing an interval of a wellbore while drilling |
September 19, 2006 |
| An apparatus and method for completing an interval of a wellbore while drilling comprises a drill string (52) having a drill bit (30) mounted on the lower end thereof. A completion assembly (50) is positioned around a section of the drill string (52) such that when the wellbore (32) is |
| 7093658 |
Foamed treatment fluids, foaming additives, and associated methods |
August 22, 2006 |
| In one embodiment, this invention presents a foaming additive that comprises at least one amidopropyl betaine having the formula: R--CONHCH.sub.2CH.sub.2CH.sub.2N.sup.+(CH.sub.3).sub.2CH.sub.2COO.sup.- wherein R is a capryloyl, a capryl, an octyl, a decyl, a cococyl radical, or a mix |
| 7087556 |
Compositions for treating subterranean zones penetrated by well bores |
August 8, 2006 |
| The present invention provides compositions of treating subterranean zones penetrated by well bores in primary well cementing operations, well completion operations, production stimulation treatments and the like. The invention includes aqueous well treating fluids comprised of water |
| 7077219 |
Foamed treatment fluids and associated methods |
July 18, 2006 |
| Methods in which temperature is used to control the foaming and/or defoaming of foamed treatment fluids comprising an aqueous liquid, an ionic foaming surfactant, and a gas are provided. A method of treating at least a portion of a subterranean formation is provided, the method compr |
| 7077203 |
Methods of using settable compositions comprising cement kiln dust |
July 18, 2006 |
| The present invention provides settable compositions that comprise water and cement kiln dust. The settable compositions optionally may comprise an additive that comprises at least one of the following group: fly ash; shale; slag cement; zeolite; metakaolin; and combinations thereof. The |
| 7040419 |
Foamed compositions and methods of use in subterranean zones |
May 9, 2006 |
| The current invention provides improved methods and compositions for completing a well bore. In one aspect, the current invention provides a process for preparing a foamed well composition. The process utilizes air to foam the composition after the air has been treated to lower the o |
| 7032669 |
Compositions and methods for preventing coagulation of water-in-oil emulsion polymers in aqueous |
April 25, 2006 |
| Methods of combining water-in-oil emulsion polymers with aqueous saline well treating fluids and compositions are provided. A composition of the invention basically comprises hydraulic cement, an aqueous saline fluid sufficient to form a slurry, a polymer precipitation and coagulation |
| 7022755 |
Resilient cement compositions and methods of cementing |
April 4, 2006 |
| Resilient cement compositions and methods of cementing using the compositions are disclosed. A resilient cement composition of the invention comprises hydraulic cement, an aqueous rubber latex and a rubber latex stabilizing surfactant comprising an iso-dodecyl alcohol ether sulfonate |
| 7013975 |
Foamed cement slurries, additives and methods |
March 21, 2006 |
| The present invention relates to foamed cement slurries, additives and methods. A foamed cement slurry of the invention comprises a hydraulic cement, sufficient water to form a slurry, sufficient gas to form a foam and an environmentally benign foaming and stabilizing additive comprising |
| 7008479 |
Methods and cement compositions for cementing in subterranean zones |
March 7, 2006 |
| Methods of cementing in subterranean zones, improved cement compositions and improved additives are provided. The compositions are basically comprised of a hydraulic cement, sufficient water to form a slurry and an additive for providing improved rheology, fluid loss control and set |
| 7008477 |
Foamed cement slurries, additives and methods |
March 7, 2006 |
| The present invention relates to foamed cement slurries, additives and methods. A foamed cement slurry of the invention comprises a hydraulic cement, sufficient water to form a slurry, sufficient gas to form a foam and an environmentally benign foaming and stabilizing additive comprising |
| 7004256 |
Set retarder compositions, cement compositions, and associated methods |
February 28, 2006 |
| Cement compositions, that comprise water, a cement, a strength-retrogression additive, and an acid, wherein the acid comprises ethylenediamine tetra acetic acid, nitrilotriacetic acid, or a combination thereof, are provided. Methods of cementing in a subterranean formation, methods o |
