Effect on Fracture Pressure by adding Iron-Based and Calcium-Based Nanoparticles to a Nonaqueous Drilling Fluid for Permeable Formations
This paper presents a comprehensive experimental evaluation to investigate the effects of adding iron-based and calcium-based nanoparticles (NPs) to nonaqueous drilling fluids (NAFs) as a fluid loss additive and for wellbore strengthening applications in permeable formations. API standard high-pressure-high-temperature (HPHT) filter press in conjunction with ceramic disks is used to quantify fluid loss reduction. Hydraulic fracturing experiments are carried out to measure fracturing and re-opening pressures. A significant enhancement in both filtration and strengthening was achieved by means of in situ prepared NPs. Our results demonstrate that filtration reduction is essential for successful wellbore strengthening; however, excessive reduction could affect the strengthening negatively.
O. M. Contreras et al., "Effect on Fracture Pressure by adding Iron-Based and Calcium-Based Nanoparticles to a Nonaqueous Drilling Fluid for Permeable Formations," Journal of Energy Resources Technology, Transactions of the ASME, vol. 138, no. 3, American Society of Mechanical Engineers (ASME), May 2016.
The definitive version is available at http://dx.doi.org/10.1115/1.4032542
Geosciences and Geological and Petroleum Engineering
Keywords and Phrases
Calcium-Based Nanoparticles; Experimental Investigation; Fluid Losses; Iron-Based Nanoparticles; Lost Circulation; Wellbore Strengthening; Hydraulic Fracturing; Iron; Oil Field Equipment; Drilling Fluids
International Standard Serial Number (ISSN)
Article - Journal
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