(22) 03.12.2015
(43) 09.06.2016
(57) The invention relates to a cement formulation based on aluminium sulphate comprising a specific proportion of Ye’elimite crystals with improved properties of...
(22) 02.12.2014
(43) 09.06.2016
(57) A cement composition for use in a well that penetrates a subterranean formation comprising: hydrated lime; a silicate; and water, wherein the composition is...
(22) 25.11.2015
(43) 09.06.2016
(57) The invention is related to nanocement production methods by modifying Portland cement, as well as to nanocement compositions. The nanocement production method...
(22) 25.11.2013
(43) 09.06.2016
(57) A method of cementing a subterranean formation includes providing a cement composition comprising cementitious material, aqueous base fluid, nanoparticles,...
(22) 08.12.2015
(43) 16.06.2016
(57) Cement and concrete additives and related methods of making and using such additives are disclosed and described. An additive can include molasses and a carrier....
(22) 22.02.2016
(43) 16.06.2016
(57) The present application provides a method for analyzing a raw material for manufacturing of gypsum products, analyzing a plurality of gypsum products, and the...
(22) 17.12.2014
(43) 22.06.2016
(57) Embodiments of the disclosure may include systems and methods for evaluating gas-contaminated cement. In one embodiment, a vector-valued image of cement state...
(22) 03.11.2015
(43) 12.05.2016
(57) Methods of making calcium sulfate whiskers are provided. In one aspect, a method includes autoclaving a slurry of calcium sulfate hemihydrate and water to form...
(22) 07.11.2014
(43) 12.05.2016
(57) The present disclosure relates to a liquid agent that mitigates shrinkage of cement, particularly cement used in a hydrocarbon-producing well. The anti-shrinkage...
(22) 19.02.2015
(43) 20.05.2016
(57) Field: mining. Substance: invention relates to installation for dehydration of gypsum. Plant includes a housing, a source of heat carrier, a shaft for movement of...
