Patent application number | Description | Published |
20130248183 | 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. A method of cementing in a subterranean formation, may comprise providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder, activating the set-delayed cement composition with a cement set activator, wherein the cement set activator comprises at least one activator selected from the group consisting of nanosilica, a polyphosphate, and combinations thereof, introducing the set-delayed cement composition into a subterranean formation, and allowing the set-delayed cement composition to set in the subterranean formation. | 09-26-2013 |
20160075933 | 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. A method of cementing in a subterranean formation, may comprise providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder, activating the set-delayed cement composition with a cement set activator, wherein the cement set activator comprises at least one activator selected from the group consisting of nanosilica, a polyphosphate, and combinations thereof, introducing the set-delayed cement composition into a subterranean formation, and allowing the set-delayed cement composition to set in the subterranean formation. | 03-17-2016 |
Patent application number | Description | Published |
20140020895 | 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 water, pumice, hydrated lime, and a set retarder; foaming the set-delayed cement composition; activating the set-delayed cement composition; introducing the set-delayed cement composition into a subterranean formation; and allowing the set-delayed cement composition to set in the subterranean formation. Additional methods, foamed set-delayed cement composition, and systems for cementing are also provided. | 01-23-2014 |
20140034314 | Mitigation of Contamination Effects in Set-Delayed Cement Compositions Comprising Pumice and Hydrated Lime - Methods and compositions for cementing are disclosed. Embodiments include a method of cementing comprising: providing a set-delayed cement composition comprising water, pumice, hydrated lime, a primary set retarder, a secondary set retarder; activating the set-delayed cement composition to produce an activated cement composition; introducing the activated cement composition into a subterranean formation; and allowing the activated cement composition to set in the subterranean formation. | 02-06-2014 |
20140048267 | Two-Part Set-Delayed Cement Compositions - A variety of methods and compositions are disclosed, including, in one embodiment a method of cementing comprising: providing a pozzolan slurry comprising a pozzolan and water; providing a lime slurry comprising hydrated lime and water; allowing the pozzolan slurry and the lime slurry to remain separate for about one day or longer; mixing the pozzolan slurry and the lime slurry to form a cement composition; and allowing the cement composition to set. | 02-20-2014 |
20140083701 | 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 described. The method may comprise providing a set-delayed cement composition comprising water, pumice, hydrated lime, and a set retarder; activating the set-delayed cement composition with a liquid additive to produce an activated cement composition, wherein the liquid additive comprises a monovalent salt, a polyphosphate, a dispersant, and water; and allowing the activated cement composition to set. | 03-27-2014 |
20140090843 | 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 described. The method comprises providing a set-delayed cement composition comprising pumice, hydrated lime, a cement set retarder, a synthetic smectite, and water; introducing the set-delayed cement composition into a subterranean formation; and allowing the set-delayed cement composition to set in the subterranean formation. | 04-03-2014 |
20140216746 | Plugging and Abandoning a Well Using a Set-Delayed Cement Composition Comprising Pumice - Disclosed herein are cement compositions and methods of using set-delayed cement compositions in subterranean formations. In one embodiment a method of plugging a wellbore is described. The method comprises providing a set-delayed cement composition comprising pumice, hydrated lime, a cement set retarder, and water; activating the set-delayed cement composition to produce an activated set-delayed cement composition; introducing the activated set-delayed cement composition into the wellbore; and allowing the activated set-delayed cement composition to form a plug in the wellbore that has a permeability of less than 0.1 millidarcy. | 08-07-2014 |