Permafrost Cement-1: New phosphate-based cement useful for drilling, completions in arctic

Permafrost Cement - 1 A new cement with very low permeability, very low thermal conductivity, and superior strength has been developed for use in cold regions.It is a challenge to design a cement for very cold climates, capable of setting at subzero temperatures but featuring a low heat of formation to avoid thawing permafrost. This article reports the development and testing of a novel phosphate-based cement for drilling and completion applications in permafrost regions.Part 1 presents a discussion of the concept behind the phosphate cement and its physical properties. The conclusion part reviews the formulation and testing of the cement with different additives such as ash, wollastonit...

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