Cement degradation in the Cerro Prieto Geothermal Field [Degradación de cemento en el campo geotérmico de cerro prieto]
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The cementation process is one of the critical parts in the construction of a geothermal well, high pressures and temperatures, highly corrosive brines and the presence in the field of sour gases such as; carbon dioxide (CO2) and/or hydrogen sulphide (H2S), severely affect the durability of the cement. The cement and the selected additives, as well as the proper cementing practices used, are fundamental part in the good design, construction and integrity of a well. In the present work the results obtained are shown when interacting inside a metal chamber samples of the different cementing slurries used in the Cerro Prieto Geothermal Field and the PERMASET cement system designed for corrosive environments by the company Baker Hughes (used in the Well 531D) with the fluid coming from well 541D located in the area of Cerro Prieto IV. Knowing the degradation of the cement, it will allow us to improve the design of the different cementing slurries, in order to impact on a longer productive life of the wells. © 2017, (publisher Name). All rights reserved.
Publisher:Gerencia de Proyectos Geotermoelectricos
- Cerro Prieto I