Nanosilica as an Additive for Cement Slurries Used in Drilling Wells Under High Temperature and High-Pressure Conditions

Pikłowska, Anna

doi:10.5593/sgem2017h/15/s06.045

Cited by 2 publications

(2 citation statements)

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“…The results showed that adding nano-silica reduces the rate of strength reduction and imparts high compressive strength to the cement. Low permeability, fluid loss control, and strength regression contribute significantly to the increased compressive strength of the cement mixture [41].…”

Section: Nano-silicamentioning

confidence: 99%

Effect of Nanoadditives on Drilling Cement

Rasool Dehghani,

Kazemzadeh,

Azin

et al. 2024

Exploring the World of Drilling

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Nanomaterials have emerged as crucial components in enhancing drilling cement properties, garnering significant interest from researchers and the drilling industry. Previous studies have explored nanoparticles, carbon nanotubes, and cellulose nanofibers, revealing their ability to improve mechanical strength, bonding, sulfate resistance, thermal stability, and rheological properties while reducing setting time, porosity, and permeability. This research delves into fundamental variables impacting nanomaterial-infused cement quality, including types, concentrations, and environmental conditions like temperature and pressure. Results underscore the substantial performance enhancements achievable through nanomaterial additives, fostering operational efficiency in drilling. Moreover, the study identifies potential drawbacks of certain nanoparticles and establishes optimal dosages for cement formulations, aiding drilling engineers in refining their approaches. Additionally, the investigation extends to the combined use of nanomaterials in hybrid and composite forms, offering insights into further enhancing drilling cement quality. Ultimately, this research advances our comprehension of nanomaterial effects on construction materials and drives technological progress in drilling by optimizing their utilization.

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Section: Nano-silicamentioning

confidence: 99%

Effect of Nanoadditives on Drilling Cement

Rasool Dehghani,

Kazemzadeh,

Azin

et al. 2024

Exploring the World of Drilling

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“…During a primary cementing operation, a cement sheath is placed in the annulus space between casing and formation in order to ensure zonal isolation and provide casing support and protection while secondary cementing is performed when cement is injected into specific locations for reasons such as well repair or well abandonment. (Hunter et al, 2007;Piklowska, 2017). For a successful well cementing operation, the water-to-cement ratio must be adequate for the local conditions, the fluid time must be sufficient for cement placement, and the cement slurry must be able to achieve enough strength quickly to ensure a good bond between the casing and the formation.…”

Section: Introductionmentioning

confidence: 99%

Improving the sustainability of oil well cementing operations: blending Portland cement with pozzolana

Amoah,

Asante-Okyere,

Bentil

et al. 2023

JGhIE

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Cementing is one of the most critical drilling operations in the oil and gas industry. However, the production and utilization of cement is a major emitter of CO2 into the atmosphere. Processes and technologies that can reduce the overall carbon footprint of the oil and gas industry while meeting the increasing global demand for energy are of key interest to stakeholders. Furthermore, local cement when compared with imported class G cement is unable to meet the compressive strength requirement of an oil well cement. Therefore, the objective of the present study is to investigate for the first time the capability of natural pozzolana clay from Ghana as a sustainable alternative to improve the physical and rheological properties of local Portland cement for well cementing operations. Pozzolana is a naturally occurring clay that is mainly composed of silica and alumina. To achieve this, well cementing blends of varying percentages with up to 30 % of pozzolana and 70 % of local Portland cement by mass were formulated and examined to determine their rheological properties, free fluid, and compressive strength. The experimental results indicated that blending natural pozzolana material and local Portland cement effectively reduced the free fluid of local Portland by up to 85 % and the plastic viscosity by up to 62.5 %. Furthermore, the addition of pozzolana significantly increased the compressive strength of local Portland cement by up to 188.5 %. Based on the results, it can be concluded that pozzolana can improve the performance of local Portland oil well cement and further reduce the carbon footprint of the oil and gas extraction process by minimizing the quantity of Portland cement used for well cementing operation.

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Nanosilica as an Additive for Cement Slurries Used in Drilling Wells Under High Temperature and High-Pressure Conditions

Cited by 2 publications

References 0 publications

Effect of Nanoadditives on Drilling Cement

Effect of Nanoadditives on Drilling Cement

Improving the sustainability of oil well cementing operations: blending Portland cement with pozzolana

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