Cement-Polymer Composites for Oilwell Cementing
| Autor: | Annie Audibert-Hayet, B. Guichard, A. Chougnet, Michel Moan, Eric Lecolier |
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| Přispěvatelé: | IFP Energies nouvelles (IFPEN), Eliokem, Université de Brest (UBO) |
| Rok vydání: | 2009 |
| Předmět: |
[PHYS]Physics [physics]
Cement chemistry.chemical_classification Materials science General Chemical Engineering Composite number 0211 other engineering and technologies Energy Engineering and Power Technology 02 engineering and technology Polymer Dynamic mechanical analysis 021001 nanoscience & nanotechnology Durability Fuel Technology chemistry Rheology 021105 building & construction Slurry Cementitious Composite material 0210 nano-technology |
| Zdroj: | Oil & Gas Science and Technology-Revue d'IFP Energies nouvelles Oil & Gas Science and Technology-Revue d'IFP Energies nouvelles, Institut Français du Pétrole, 2009, 64 (5), pp.583-595. ⟨10.2516/ogst/2009050⟩ |
| ISSN: | 1953-8189 1294-4475 |
| DOI: | 10.2516/ogst/2009050 |
| Popis: | International audience; The selection of an optimal cementitious material is critical to maintain zonal isolation for the lifetime of oil & gas or gas storage wells not only for primary cementing but also after well abandonment. Polymer powder/cement composites present good mechanical and durability properties since polymer latex promotes improved adhesion and flexibility to the hardened cement paste. So, for well constructions in aggressive environment, polymer powder/cement composites would be good candidates. During the well construction, the cement slurry placement strongly depends on its rheological behaviour. In this paper, we studied rheological properties of polymer powder/cement composite suspensions: they present a transition from a gel to a liquid behaviour in oscillatory shear. The replacement of cement particles by polymer particles induces a decrease of the storage modulus in the gel state. The good quality of the polymer particle dispersion and their high affinity for cement particles were observed by Scanning Electron Microscopy (SEM). Solid state NMR (29Si and 27Al) and calorimetry allowed to highlight the influence of the polymer addition on both the hydration and hardening of the cement matrix. All these results helped us to understand the relations between the slurry composition, its rheological behaviour and the properties of the hardened materials which allowed us to design new cementing materials. |
| Databáze: | OpenAIRE |
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