Aglomerante composto de cimentos comerciais e sílica flour para poços petrolíferos

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Abstract

Well cementing is a routine activity in the oil industry, but requires a series of care, as it is an
expensive activity that, when not carried out properly, can cause extra expenses in addition to
environmental damage. This work aimed to determine statistically defined compositions of a
material that can efficiently replace Special Portland Cement for oil wells. For this, the
characterization of the materials was carried out by means of laser granulometric analysis, chemical
analysis, X-ray diffraction, and thermal analysis. The compositions were determined using the
mixture design methodology, using the central composite experimental design (CCD), and
subjected to simple compressive strength tests and thermal analysis, to determine optimal
compositions with the closest approximation to the characteristics of Special Portland Cement. for
oil wells. The results obtained pointed to the feasibility of using the mixtures found, allowing the
definition of 9 compositions that presented satisfactory performance, and can be used for this
purpose. Therefore, it was concluded that the compositions found and the models developed
presented a potentially satisfactory performance for use as an alternative material for oil wells,
requiring mechanical and economic validation for its use.