Novel Nanoparticle-Based Drilling Fluid with Improved Characteristics

Zakaria, Mohammad Ferdous; Husein, Maen M.; Hareland, Geir

doi:10.2118/156992-ms

Cited by 115 publications

(73 citation statements)

References 4 publications

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“…Moreover, at high NP concentrations a new layer was formed, consisted mainly of the agglomerated NP, which adversely affected the filter cake efficiency. Zakaria [16] developed in-house a new class of nanoparticles to be used as loss circulation material to control fluid loss in porous media with very small pore size, such as shale formations. The authors tested two different approaches, in-situ and ex-situ, of nanoparticle formation when using an oil-based drilling fluid.…”

Section: Experimental Studiesmentioning

confidence: 99%

Nano-Based Drilling Fluids: A Review

2017

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Nanomaterials are engineered materials with at least one dimension in the range of 1-100 nm. Nanofluids-nanoscale colloidal suspensions containing various nanomaterials-have distinctive properties and offer unprecedented potential for various sectors such as the energy, cosmetic, aerospace and biomedical industries. Due to their unique physico-chemical properties, nanoparticles are considered as very good candidates for smart drilling fluid formulation, i.e., fluids with tailor-made rheological and filtration properties. However, due to the great risk of adapting new technologies, their application in oil and gas industry is not, to date, fully implemented. Over the last few years, several researchers have examined the use of various nanoparticles, from commercial to custom made particles, to formulate drilling fluids with enhanced properties that can withstand extreme downhole environments, particularly at high pressure and high temperature (HP/HT) conditions. This article summarizes the recent progress made on the use of nanoparticles as additives in drilling fluids in order to give such fluids optimal rheological and filtration characteristics, increase shale stability and achieve wellbore strengthening. Type, size and shape of nanoparticles, volumetric concentration, addition of different surfactants and application of an external magnetic field are factors that are critically evaluated and are discussed in this article. The results obtained from various studies show that nanoparticles have a great potential to be used as drilling fluid additives in order to overcome stern drilling problems. However, there are still challenges that should be addressed in order to take full advantage of the capabilities of such particles. Finally the paper identifies and discusses opportunities for future research.

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Section: Experimental Studiesmentioning

confidence: 99%

Nano-Based Drilling Fluids: A Review

2017

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“…Nowadays, industry is focused on new technologies for formation damage mitigation by preventing fluid invasion towards the porous media. For example, NPs have been recently used for such purpose (Cai et al, 2012;Zakaria et al, 2012;Srivatsa et al, 2011;Javeri et al, 2011;Sensoy et al, 2009). These very small particles can have access to the smallest pores and pore throats acting as a sealing agent in all lithology types including unconsolidated formations.…”

Section: Introductionmentioning

confidence: 99%

“…Other virtues of NPs correspond to hydrodynamic properties, interaction potential with the formation (Abdo and Haneef, 2010;Amanullah et al, 2011;Srivatsa, 2010), and improved thermal conductivity generating low environmental impact, since typically the amounts implemented are lower than the commonly applied mud additives. Application of NPs in OBM was conducted by Zakaria et al (2012) using the standard API filter press. Significant filtration reduction was reported after 30 min at LPLT.…”

Section: Introductionmentioning

confidence: 99%

Application of In-House Prepared Nanoparticles as Filtration Control Additive to Reduce Formation Damage

Contreras

Hareland

Husein

et al. 2014

SPE International Symposium and Exhibition on Formation Damage Control

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Nanoparticles (NPs) are currently being studied as a drilling fluid additives especially for application in very lowpermeability formations such as shales. Application for conventional permeable rocks is still a subject of discussion. In this work, successful application of in-house prepared iron-based nanoparticles (NP1) and calcium-based nanoparticles (NP2) to reduce filtration loss in conventional permeable media has been experimentally quantified for oil-based mud (OBM) utilizing the high-pressure high-temperature (HPHT) filter press at 500 psi and 250°F. Ceramic discs were used as the filtration medium in this application to test the performance of the NPs and glide graphite as a conventional lost circulation material (LCM) for porous media. These experiments were carried out in the presence of graphite at low and high concentrations. Filtration reduction trends were observed and a reduction up to 76% was achieved. API filter press was also used to investigate the behavior of NPs and graphite under low pressure and temperature conditions (LPLT). NP1 and NP2 at the two graphite concentrations showed a reduction up to 100%. NP1 gave higher reduction especially at low concentrations under HPHT conditions, while NP2 yielded significant reduction at high concentration under HPHT. These trends were reversed under LPLT, giving a new insight on NPs performance under different pressure and temperature conditions. At HPHT and LPLT, the effect of graphite as a filtrate reduction agent is less significant as the NPs concentration increases. High graphite level had a positive effect on filtration reduction in combination with NP1 at HPHT and LPLT. This was not the case for the blends containing NP2 at HPHT. The effect of NPs and graphite was tested individually showing a different performance compared to the combination of them. Impact of NPs and graphite on rheology was also quantified allowing identification of the more sensitive parameters in the blends. It is concluded from this study that blends containing NPs and graphite can be successfully implemented in OBM to minimize formation damage in porous media.

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“…The pore diameter of gas shales in China and North America ranges from 5 to 300 nm and 8 to 100 nm, respectively [11][12][13][14][15][16][17]. Therefore, the past decade has seen an increase in NP use to improve wellbore stability in shales [18][19][20][21][22][23][24][25][26][27][28][29][30][31]. To assess wellbore stability in the presence of NP, triaxial failure tests, pressure transmission tests (PTTs), and modified thick walled cylinder (TWC) tests with drilling fluid exposure have been recommended by van Oort et al [32].…”

Section: Introductionmentioning

confidence: 99%

2D Numerical Simulation of Improving Wellbore Stability in Shale Using Nanoparticles Based Drilling Fluid

Song

Yuan²,

et al. 2017

Energies

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Abstract:The past decade has seen increased focus on nanoparticle (NP) based drilling fluid to promote wellbore stability in shales. With the plugging of NP into shale pores, the fluid pressure transmission can be retarded and wellbore stability can be improved. For better understanding of the interaction between shale and NP based drilling fluid based on previous pressure transmission tests (PTTs) on Atoka shale samples, this paper reports the numerical simulation findings of wellbore stability in the presence of NP based drilling fluid, using the 2D fluid-solid coupling model in FLAC3D™ software. The results of previous PTT are discussed first, where the steps of numerical simulation, the simulation on pore fluid pressure transmission, the distribution of stress and the deformation of surrounding rock are presented. The mechanisms of NP in reducing permeability and stabilizing shale are also discussed. Results showed that fluid filtrate from water-based drilling fluid had a strong tendency to invade the shale matrix and increase the likelihood of wellbore instability in shales. However, the pore fluid pressure near wellbore areas could be minimized by plugging silica NP into the nanoscale pores of shales, which is consistent with previous PTT. Pore pressure transmission boundaries could also be restricted with silica NP. Furthermore, the stress differential and shear stress of surrounding rock near the wellbore was reduced in the presence of NP. The plastic yield zone was minimized to improve wellbore stability. The plugging mechanism of NP may be attributed to the electrostatic and electrodynamic interactions between NP and shale surfaces that are governed by Derjaguin-Landau-Verwey-Overbeek (DLVO) forces, which allowed NP to approach shale surfaces and adhere to them. We also found that discretization of the simulation model was beneficial in distinguishing the yield zone distribution of the surrounding rock in shales. The combination of PTT and the 2D numerical simulation offers a better understanding of how NP-based drilling fluid can be developed to address wellbore stability issues in shales.

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Novel Nanoparticle-Based Drilling Fluid with Improved Characteristics

Cited by 115 publications

References 4 publications

Nano-Based Drilling Fluids: A Review

Nano-Based Drilling Fluids: A Review

Application of In-House Prepared Nanoparticles as Filtration Control Additive to Reduce Formation Damage

2D Numerical Simulation of Improving Wellbore Stability in Shale Using Nanoparticles Based Drilling Fluid

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