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US20150184059 AQUEOUS CEMENT COMPOSITIONS INCORPORATING PARTICLES THAT ARE ACTIVATED TO CONTROL RHEOLOGY WHEN WATER SOLUBLE PORTIONS OF THE PARTICLES ARE RELEASED IN THE PRESENCE OF WATER  
The present invention provides strategies for improved control of fluid loss, hydration, settling, and separation of aqueous cementing compositions over a wide temperature and time range. The...
US20140054038 Methods for Completing Subterranean Wells  
Well cement compositions comprise water, an inorganic cement and one or more fillers having a thermal expansion coefficient (CTE) that is lower than about 3×10−6/° C. The presence of low-CTE...
US20150175870 CEMENT COMPOSITIONS CONTAINING METAPHOSPHATE AND METHODS OF USE  
In an embodiment, the cement compositions comprise: (i) hydraulic cement, wherein the hydraulic cement has a ratio of CaO to SiO2 in the range of 2.0 to 4.0; and (ii) a water-soluble metaphosphate...
US20140102704 Cement Compositions Containing Metphosphate and Methods of Use  
In an embodiment, a cement composition includes: (i) hydraulic cement, wherein the hydraulic cement has a ratio of CaO to SiO2 in the range of 2.0 to 4.0; and (ii) a water-soluble metaphosphate in...
US20120152540 METHODS FOR CEMENTING IN A SUBTERRANEAN FORMATION USING A CEMENT COMPOSITION CONTAINING CALCIUM SILICATE HYDRATE SEEDS  
According to an embodiment, a method of cementing in a subterranean formation comprises: introducing a cement composition into the subterranean formation, wherein the cement composition comprises:...
US20120145392 COMPOSITIONS AND METHODS FOR WELL COMPLETIONS  
Particulate polymeric materials may be added to a cement slurry to adjust the linear thermal-expansion coefficient of the set cement. The coefficient of the set cement is optimized by considering...
US20150252243 USE OF SALTS OF POLYCARBOXYLATES WITH LIPOPHILIC INCREMENTS TO CONTROL SEPARATION IN CEMENT CONTAINING LATEX  
Methods and compositions are provided that may comprise cement, a stabilizing additive, latex, and water. An embodiment of the present invention includes a method of cementing in a subterranean...
US20110067868 SELF ADAPTIVE CEMENT SYSTEMS  
A self-healing cement system includes cement, water and at least one additive that swells in contact with water from reservoir or from formation in the case of a structural failure in the set...
US20110048709 Cement Compositions and Associated Methods Comprising Sub-Micron Calcium Carbonate and Latex  
Methods and compositions are provided that relate to cement compositions and methods comprising sub-micron calcium carbonate and latex. An embodiment includes a method of cementing in a...
US20120018154 METHODS FOR COMPLETING THERMAL-RECOVERY WELLS  
Methods for completing a well involve the use of computational models to design cement systems that are appropriate for the anticipated well conditions. Data from laboratory tests and/or numerical...
US20150175869 Use of Mems in Set-Delayed Cement Compositions Comprising Pumice  
Disclosed is a method of cementing. The method comprises providing a set-delayed cement composition comprising water, pumice, hydrated lime, a set retarder, and a micro-electrical-mechanical...
US20140083701 Cement Set Activators for Set-Delayed Cement Compositions and Associated Methods  
Disclosed herein are cement compositions and methods of using set-delayed cement compositions in subterranean formations. In one embodiment, a method of cementing in a subterranean formation is...
US20130299171 OIL AND GAS WELL CEMENT SYSTEMS USING ELEMENTAL SULFUR  
A cement composition for cementing an oil or gas well includes Portland cement, water and a sulfur component. The cement composition may be used to cement a well bore by creating a cement slurry...
US20120006546 Compositions And Methods For Well Cementing  
A retarder aid increases the applicable temperature range of phosphonate/borate cement-retarder systems to at least 302° C. (575° F.), and 207 MPa (30,000 psi). The retarder aid comprises a...
US20140020895 Foaming of Set-Delayed Cement Compositions Comprising Pumice and Hydrated Lime  
A variety of methods and compositions are disclosed, including, in one embodiment a method a cementing in a subterranean formation comprising: providing a set-delayed cement composition comprising...
US20140332216 POZZOLAN FOR USE IN A CEMENT COMPOSITION HAVING A LOW HEAT OF HYDRATION  
A method of cementing in a subterranean formation comprises: introducing a cement composition into a wellbore penetrating the subterranean formation, wherein at least a portion of the subterranean...
US20140090843 Use of Synthetic Smectite in Set-Delayed Cement Compositions  
Disclosed herein are cement compositions and methods of using set-delayed cement compositions in subterranean formations. In one embodiment a method of cementing in a subterranean formation is...
US20140000893 Set-Delayed Cement Compositions Comprising Pumice and Associated Methods  
Set-delayed cement compositions and methods of using set-delayed cement compositions in subterranean formations. Embodiments include a method of drilling a wellbore in a subterranean formation...
US20140374098 Set-Delayed Cement Compositions Comprising Pumice and Associated Methods  
A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing in a subterranean formation, comprising: providing a set-delayed cement composition...
US20140318784 Pumice-Containing Remedial Compositions and Methods of Use  
Methods and compositions are provided that utilize pumice and various additives. An embodiment provides a method of remedial cementing in a subterranean formation comprising: providing a...
US20140360721 CEMENT COMPOSITION WITH FLY ASH  
A cement composition comprising industrial waste containing calcium oxide and a retarder is disclosed. The cement composition is free of Portland cement. The composition also includes an alkali...
US20120234541 Settable Compositions Comprising Cement Kiln Dust and Rice Husk Ash and Methods of Use  
Embodiments disclose method and compositions that comprise cement kiln dust and rice husk ash. An embodiment comprises a method of cementing comprising: placing a settable composition into a...
US20130284439 WIDE TEMPERATURE RANGE CEMENT RETARDER  
According to an embodiment, a composition is provided that can be used in a cementing. The composition includes at least: (i) a hydraulic cement; and(ii) a copolymer comprising at least the...
US20120152539 Settable Compositions Comprising Interground Perlite and Hydraulic Cement  
Methods and compositions are disclosed that comprise interground perlite and hydraulic cement. An embodiment provides a method of cementing comprising: providing a settable composition comprising...
US20140202698 Set-Delayed Cement Compositions Comprising Pumice and Associated Methods  
Disclosed herein are cement compositions and methods of using set-delayed cement compositions in subterranean formations. An embodiment includes a method of cementing in a subterranean formation...
US20120199350 Low Heat of Hydration Cement Compositions and Methods of Using Same  
A method of servicing a wellbore in a subterranean formation, comprising preparing a cement composition comprising water and a cementitious material, wherein the cementitious material further...
US20120318506 Acid-Soluble Cement Compositions Comprising Cement Kiln Dust and Methods of Use  
The present invention, relates to acid-soluble cement compositions that comprise cement kiln dust (“CKD”) and associated methods of use. An embodiment provides a method of cementing comprising:...
US20120267108 USE OF METHYLHYDROXYETHYL CELLULOSE AS CEMENT ADDITIVE  
Methylhydroxyethyl cellulose may be used as an additive in cement slurries in the treatment of wells to prevent or reduce the occurrence of gas channeling. In addition to acting as a gas control...
US20120152541 Compositions and Methods for Well Completions  
Well-cementing compositions for use in high-pressure, high-temperature (HPHT) wells are often densified, and contain weighting agents such as hematite, ilmenite, barite and hausmannite. The...
US20110162845 Lost Circulation Compositions and Associated Methods  
An embodiment includes a method of servicing a well bore. The method may comprise introducing a lost circulation composition into a lost circulation zone, the lost circulation composition...
US20120018155 CEMENT COMPOSITIONS WITH A HIGH-DENSITY ADDITIVE OF SILICON CARBIDE OR SINTERED BAUXITE  
A method of cementing in a subterranean formation comprising the steps of: (A) introducing a cement composition into the subterranean formation, the cement composition comprising: (i) cement; (ii)...
US20150191993 FOAMED CEMENT COMPOSITIONS CONTAINING METAL SILICIDES USABLE IN SUBTERRANEAN WELL OPERATIONS  
The invention relates to cement compositions containing a metal silicide such as an alkali metal silicide or an alkaline earth metal silicide. Upon mixing with water, the metal silicide reacts to...
US20140083700 Compositions and Methods for Plug Cementing  
Compositions comprise water, an acrylate monomer or a methacrylate monomer or a combination thereof, a free-radical polymerization initiator and a water-soluble bromide salt. Such compositions...
US20120325478 Cement Compositions and Methods of Using the Same  
The present invention relates to cement compositions and their use in cementing operations. The cements comprise an aluminosilicate; a sodium aluminate, a calcium aluminate, a potassium aluminate,...
US20120012318 Compositions And Methods For Servicing Subterranean Wells  
Fluid compositions comprising an aqueous epoxy resin, a hardener and particles comprising silica, aluminosilicate or both are useful for establishing hydraulic isolation in cemented subterranean...
US20130299170 CALCIUM ALUMINATE CEMENT COMPOSITION CONTAINING A SET RETARDER OF AN ORGANIC ACID AND A POLYMERIC MIXTURE  
A cement composition for use in an oil or gas well, the cement composition comprises: a calcium aluminate cement; water; an organic acid; and a polymeric mixture comprising: (A) water; (B) citric...
US20140367104 Compositions and Methods for Completing Subterranean Wells  
High-specific-gravity micronized particulates, added to cement slurries in conjunction with certain high-molecular-weight water-soluble polymers, improve fluid-loss control of cement slurries...
US20140311742 Compositions and Methods for Servicing Subterranean Wells  
This invention relates to methods for servicing subterranean wells, in particular, fluid compositions and methods for remedial operations during which the fluid compositions are pumped into a...
US20150166874 Compositions and Methods for Maintaining Zonal Isolation in A Subterranean Well  
Well cementing compositions comprise water, an inorganic cement and flexible particles having an average density higher than 1.5 g/cm3. The flexible particles may be elastomers. The flexible...
US20110132606 Apparatus and Method for Selectively Placing Additives in Wellbore Cement  
An apparatus for releasing additive into cement pumped into an annular space between a wall of a wellbore and a casing inserted into the wellbore include a cement additive enclosed in a container...
US20140090842 Cement Compositions Comprising Deagglomerated Inorganic Nanotubes and Associated Methods  
A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing comprising: providing an aqueous dispersion comprising deagglomerated inorganic nanotubes...
US20110067869 IN SITU DECOMPOSITION OF CARBONYLS AT HIGH TEMPERATURE FOR FIXING INCOMPLETE AND FAILED WELL SEALS  
Methods and systems relating to in situ decomposition of carbonyls at high temperature for fixing incomplete and failed well seals, are described. According to one embodiment, a method, comprises...
US20130043027 Zonal Isolation Systems For Subterranean Wells  
A zonal isolation system for a subterranean well comprises at least one tubular body that comprises at least one semi-permeable membrane, or at least one removable material or both. The...
US20120138299 Wellbore servicing compositions comprising a fluid loss agent and methods of making and using same  
A method of servicing a wellbore comprising preparing a composition comprising a calcium aluminate cement, water, and a fluid loss additive wherein the fluid loss additive comprises an acid...
US20110308799 WATER-BASED FLUID LOSS ADDITIVE CONTAINING AN AMPHIPHILIC DISPERSANT FOR USE IN A WELL  
According to an embodiment, a well treatment composition comprises: an aqueous liquid; a fluid loss additive, wherein the fluid loss additive comprises a high molecular weight, water-swellable...
US20130048285 Compositions and Methods for Servicing Subterranean Wells  
Lipophilic fibers are effective media for cleaning non-aqueous fluids out of a subterranean wellbore. The fibers are preferably added to a drilling fluid, a spacer fluid, a chemical wash, a cement...
US20110108274 ADDITIVE FOR WELL CEMENTING APPLICATIONS  
An additive for Portland-cement slurries comprises a liquid silicate absorbed into a solid porous medium. The additive is incorporated in slurries designed for well-cementing applications. The...
US20100139920 DRY CEMENT FORMULATION FOR CEMENTING HOLES IN THE EARTH  
The present invention pertains to a dry cement formulation for cementing earth boreholes, in particular oil, gas and/or terrestrial heat boreholes, containing a) about 20 to 99.9 wt. % cement, b)...
US20140008068 BENTONITE COLLARS FOR WELLBORE CASINGS  
Casing assemblies and methods of using the casing assemblies to isolate selected sections of a subterranean wellbore are provided. Also provided are methods of fabricating the casing assemblies....
US20150041134 Cement Slurry Compositions and Methods  
A cement slurry composition is described as having cement, water, and organic polymer particles. The composition also includes non-ionic surfactants, which may contain ethoxylate groups or contain...

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