Abstract
The present work aims at the experimental determination of the isothermal compressibility of drilling fluids under high pressure and high temperature. For that, a high-resolution PVT (Pressure-Temperature-Volume) cell was used to measure data through the Constant Composition Expansion method. The isothermal compressibility values of the studied fluid were similar to the data found in the literature.
Highlights
With the recent discovery of huge petroleum reservoirs located at the Pre-Salt area containing light oil of excellent quality, the offshore drilling wells in deep and ultra-deep environments has significantly increased
The isothermal compressibility of the drilling fluids is related to its density variation, which is concerned to the effective understanding of the kick control
The isothermal compressibility of water at 80°C is shown on Image 1
Summary
With the recent discovery of huge petroleum reservoirs located at the Pre-Salt area containing light oil of excellent quality, the offshore drilling wells in deep and ultra-deep environments has significantly increased. These reservoirs are responsible for more than 50% of the total Petrobras production. The drilling in such environments usually faces severe pressure and temperature conditions which directly influence on the drilling fluid properties. The knowledge of the drilling fluid properties is important in the kick’s context.
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