Empirical correlations for estimating filtrate volume of water based drilling fluids

Date

2005-03-01

Author

Ozbayoglu, Evren
Gunes, Cagri
Apak, Esat C.
Kök, Mustafa Verşan
Iscan, A. Gurkan

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Standard American Petroleum Institute (API) filter press is generally used for identifying the filtrate volume of drilling fluids and works only at very low pressures. In fact, during a drilling operation, at downhole conditions, the pressures encountered are significantly higher than what is used during standard API filter press tests. A relationship between the well-known fluid properties and the filtrate volume test is developed. In this study, experiments have been conducted for different water-clay mixtures with varying concentrations at different pressure values by using standard API filter press and HP&HT (high-pressure high-temperature) filter press. The relationship between physical and chemical properties of water-clay mixtures and filtrate volume is analyzed. An empirical correlation has been developed for estimating filtrate volume using basic information of the mud (i.e., rotational viscometer readings, density, pressure, cation exchange capacity, and chemical composition). The developed correlation can estimate filtrate volume with an error less than 20% for a wide range of pressure values.

Subject Keywords

Fuel Technology, Geotechnical Engineering and Engineering Geology, Energy Engineering and Power Technology, General Chemistry, General Chemical Engineering

URI

https://hdl.handle.net/11511/47821

Journal

Petroleum Science and Technology

DOI

https://doi.org/10.1081/lft-200031037

Collections

Department of Petroleum and Natural Gas Engineering, Article

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Citation Formats

E. Ozbayoglu, C. Gunes, E. C. Apak, M. V. Kök, and A. G. Iscan, “Empirical correlations for estimating filtrate volume of water based drilling fluids,” Petroleum Science and Technology, pp. 423–436, 2005, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/47821.