RHEOLOGICAL ANALISIS IN THE MAKING OF CEMENT PASTE FOR CEMENTING IN OIL WELLS

Abstract

According to former President of Petrobrás, Maria das Graças Silva Foster, in 2013 the Brazil
produced about 1 million barrels per day, that is, much of the nation's economic demand is subject to
extraction of oil, what determines the country scientific investments for the Betterment of this economic
mode, in order to maximize the extraction and prevent environmental damage. On the extraction of oil in the
drilling process, a step that is required is the cementing of the well. The cement used in the process is subject
to strict conditions of temperature and pressure, and must support fragile and porous rocks, fluids corrosive
and pressurized. Therefore, it is necessary to check the rheological behavior of cement paste. This work aims
to evaluate the study of rheology and rotational dynamics in cementing oil wells. It is therefore important to
improve the homogeneity of the cement and ceramic suspensions because they lose these characteristics
when subjected to the transport, mixing and pumping. Was held the addition of minerals and additives in the
folder for the oil well cement in accordance with the regulations in force, with the implementation of models
of Bingham and dynamic power or oscillatory. Where was evaluated by testing the determination of the
potential for speed and tests zeta compression and mechanical traction. Evaluated by testing for developers
and rheological tests to determine zeta potential of more than 30 mV being the same stable and mechanical
compression and traction test.