Effect of Additives on Rheological Properties and Fluid Loss of Oil Based Drilling Fluids
DOI:
https://doi.org/10.31265/atnrs.770Abstract
Oil-based drilling fluids are often used to drill geothermal or petroleum wells in hot locations. These fluids normally consist of dispersion of organophilic clays in water-in-oil emulsions. If loss of fluid to the formation is expected, fibres or other additives for fluid loss prevention are added.
In the present article results from a study showing the effects of the additions of weight materials and asphaltic resin-based fluid loss prevention additive on rheological properties of the drilling fluids are shown. These results show the complex behaviour of the mixture of these particulate materials into emulsions. Filtration control is measured in a pressure cell where the flow goes through filter paper with 11 and 22 microns opening.
References
Mohamed, A.; Salehi, S.; Ahmed, R. Significance and complications of drilling fluid rheology in geothermal drilling: A review, Geothermics, 2021, 93, 102066, https://doi.org/10.1016/j.geothermics.2021.102066.
https://doi.org/10.1016/j.geothermics.2021.102066
Saasen, A.; Ytrehus, J.D., Rheological properties of drilling fluids: Use of dimensionless shear rates in Herschel-Bulkley and Power-law models, Applied Rheology, 2018, 28, https://doi.org/10.3933/APPLRHEOL-28-54515
Sun, Y.; Huang, H. Effect of Rheology on Drilling Mud Loss in a Natural Fracture, 49th US Rock Mechanics / Geomechanics Symposium 28 June- 1 July, 2015. Paper ARMA-2015-345, San Francisco, CA, USA
Nelson, A.Z., Ewoldt, R.H., Design of yield stress fluids: A rheology-to-structure inverse problem, Soft Matter, 2017, 13, 7578 7594
https://doi.org/10.1039/C7SM00758B
Ofei, T.N., On the Stability of Oil-Based Drilling Fluid: Effect of Oil Water Ratio Paper OMAE2020-19071, the ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering, 3-7 August, 2020, Online
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Copyright (c) 2024 Blandine Feneuil, Jan David Ytrehus, Arild Saasen
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