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Effect of SiO2 Nanoparticle Addition on the Filtrate Characteristics of Drilling Fluids Used in Carbonate ReservoirsNormal access

Authors: A. Kanjirakat, M. Amani, A. Carvero and R. Sadr
Event name: Third EAGE WIPIC Workshop: Reservoir Management in Carbonates
Session: Case Studies
Publication date: 20 November 2019
DOI: 10.3997/2214-4609.201903125
Organisations: EAGE
Language: English
Info: Extended abstract, PDF ( 469.37Kb )
Price: € 20

Summary:
One of the ideal characteristics for a drilling fluid suitable for drilling in carbonate reservoirs would minimize the amount of the filtrates entering into the reservoir formation. Incorporating nanoparticles into the drilling mud is expected to improve this functionality.The effect of nanoparticle addition the filtrate characteristics of a water based muds that are typically used for drilling in carbonate reservoirs are studied in the present work. The filtrate volume, dry and wet weights and thickness of the filter cakes are measured to evaluate the filtrate characteristics. A water based mud with a mud weight of 12ppg is used as the base mud for comparing the results. SiO2 nanoparticles are added to the base mud, and standard fluid loss studies at 250oC and differential pressure of 1200 psi is conducted. The addition of SiO2 nanoparticles is observed to be beneficial in reducing the fluid loss mainly when used with a 10μm pore disk. An increase in nanoparticle concentration is observed to increase the filter cake thickness and to have reduced the porosity of the filter cake.


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