Patent application number | Description | Published |
20090071375 | Gas-Generating Additives Having Improved Shelf Lives for Use in Cement Compositions - According to various embodiments, gas-generating additives for use in a cement composition comprise: a gas-generating material at least partially coated with a mixture comprising a fatty acid ester of sorbitan, glycerol, or pentaerythritol and having a shelf life of about 12 months or greater. The gas-generating additives may also include a C | 03-19-2009 |
20090095475 | Cement Compositions Comprising a High-Density Particulate Elastomer and Associated Methods - A variety of methods and compositions are disclosed, including, in one embodiment, a method of treating a subterranean formation comprising introducing a treatment fluid into a well bore, wherein the treatment fluid comprises a particulate elastomer having a specific gravity of at least about 1.6. Another method of treating a subterranean formation comprises introducing a treatment fluid into a well bore, wherein the treatment fluid comprises a particulate elastomer having a specific gravity of at least about 1.05, wherein the particulate elastomer comprises a halogenated thermoplastic. Treatment fluids, methods of cementing, and cement compositions are also provided herein. | 04-16-2009 |
20090139719 | Cement-based particulates and methods of use - Methods of making particulates for use in a subterranean application comprising: providing particulates of a settable composition comprising a cementitious material, a filler material, and an activator of the cementitious material; and pre-curing the particulates until the particulates reach a crush strength of about 50 psi or greater; and curing the pre-cured particulates at a temperature in the range of about 230° F. to about 600° F., so that at least a portion of the particulates comprise a newly formed crystalline phase. | 06-04-2009 |
20090308611 | Wellbore Servicing Compositions Comprising a Density Segregation Inhibiting Composite and Methods of Making and Using Same - A method of servicing a wellbore comprising placing a wellbore servicing fluid comprising a density segregation inhibitor composite into the wellbore, wherein the density segregation inhibitor composite comprises a high density additive and a low density additive; and wherein the high density additive comprises barium sulfate, iron oxide, manganese oxide, or combinations thereof. A method of inhibiting segregation of particles in a wellbore servicing fluid comprising preparing a composite material comprising a high density additive and a low density additive, wherein the low density additive comprises an elastomer which can increase in volume by greater than about 300% based on its original volume when contacted with a fluid. | 12-17-2009 |
20100089582 | Sorel cement compositions, amine phosphono retarders, and associated methods - A variety of methods and compositions are disclosed, including, in one embodiment, a method of cementing comprising introducing a cement composition into a subterranean formation, wherein the cement composition comprises a Sorel cement and an amine phosphono retarder; and allowing the cement composition to set. | 04-15-2010 |
20100212892 | Methods of formulating a cement composition - A method of cementing a wellbore in a subterranean formation comprising formulating a non-Portland base cement composition that may be suitable for long-term zonal isolation, preparing the non-Portland base cement composition, determining a density of the non-Portland base cement composition and adjusting the density as needed to within an optimized density range to form a first optimized cement composition, determining the percentage of tensile strength relative to compressive strength of the cement composition, and placing the optimized cement composition in the wellbore. | 08-26-2010 |
20100218949 | Swellable Elastomers and Associated Methods - Methods are provided that include a method of reducing fluid loss in a subterranean formation comprising placing a lost circulation composition comprising a base fluid and a swellable elastomer in at least a portion of a subterranean formation comprising a lost circulation zone; allowing the swellable elastomer to at least partially swell upon contact with a fluid; and allowing the lost circulation composition to at least partially reduce the loss of fluid to the subterranean formation. Additional methods are also provided. | 09-02-2010 |
20110077324 | CEMENT COMPOSITIONS COMPRISING A HIGH-DENSITY PARTICULATE ELASTOMER AND ASSOCIATED METHODS - A variety of methods and compositions, including, in one embodiment, a method of treating a subterranean formation comprising introducing a treatment fluid into a well bore, wherein the treatment fluid comprises a particulate elastomer having a specific gravity of at least about 1.6. Another method of treating a subterranean formation comprises introducing a treatment fluid into a well bore, wherein the treatment fluid comprises a particulate elastomer having a specific gravity of at least about 1.05, wherein the particulate elastomer comprises a halogenated thermoplastic. | 03-31-2011 |
20110232905 | Zero Shear Viscosifying Agent - This invention is generally related to using treatments fluids having additives that modify rheological characteristics. Some embodiments of the present invention provide methods of using treatment fluids comprising an aqueous fluid and an associative polymer additive, wherein the associative polymer additive increases the PV of the treatment fluid by more at least 50% and wherein the associative polymer additive increases the yield point by no more than about 30% of the corresponding increase in the PV relative to a treatment fluid without the associative polymer additive in a portion of a subterranean formation. | 09-29-2011 |
20120167803 | Cement-Based Particulates and Methods of Use - Methods of making particulates for use in a subterranean application comprising: providing particulates of a settable composition comprising a cementitious material, a filler material, and an activator of the cementitious material; and pre-curing the particulates until the particulates reach a crush strength of about 50 psi or greater; and curing the pre-cured particulates at a temperature in the range of about 230° F. to about 600° F., so that at least a portion of the particulates comprise a newly formed crystalline phase. | 07-05-2012 |
20120180698 | Biodegradable Retarder for Cementing Applications - Cement compositions comprising carboxylated inulin and methods of using the same to cement a workspace. In one embodiment, a method of cementing includes providing a cement composition comprising a carboxylated inulin, for example, in a subterranean formation. The method further includes allowing the cement composition to set. In some embodiments, the cement composition has a thickening time of from about 2 hours to about 11 hours. In other embodiments, the cement composition has a viscosity that is about constant for a period of time after the cement composition is placed. | 07-19-2012 |
20120238663 | Zero Shear Viscosifying Agent - A treatment fluid comprising an aqueous liquid and an associative polymer additive. The associative polymer additive increases the plastic viscosity (PV) of an aqueous liquid by more than at least 50% and wherein the associative polymer additive increases the yield point (YP) by no more than about 30% of the corresponding increase in the PV relative to an aqueous liquid without the associative polymer additive. Moreover, the viscosity of the aqueous liquid comprising the associative polymer additive is capable of maintaining a viscosity of greater than about 20 cP for at least 20 minutes at temperatures higher than about 275° F. In some cases the associative polymer additive may be a hydrophobic alkoxylated aminoplast. | 09-20-2012 |