Article
Engineering, Chemical
Srawanti Medhi, Satyajit Chowdhury, Naman Bhatt, Dharmendra K. Gupta, Sravendra Rana, Jitendra S. Sangwai
Summary: The study demonstrates that synthesized graphene oxide nanosheet (GO-NS) acts as an excellent thermal stabilizer and structural stabilizer for Non Damaging Drilling Fluid (NDDF), leading to significant reduction in fluid loss volume. Computational Fluid Dynamics (CFD) simulations show that 0.5 wt% GO-NS NDDF exhibits the lowest cutting retention rate, indicating superior performance in drilling operations.
Article
Materials Science, Multidisciplinary
Tobin E. Brown, Veruska Malave, Callie Higgins, Anthony P. Kotula, Benjamin W. Caplins, Edward J. Garboczi, Jason P. Killgore
Summary: In high-resolution stereolithography, printed parts deviate significantly from the projected photomask due to the complexity of reactions on the voxel scale. A new technique has been developed to measure local photopolymerization rates, but enhanced control over polymerization and diffusion is needed for accurate and mechanically homogeneous parts.
ACS APPLIED POLYMER MATERIALS
(2021)
Article
Energy & Fuels
Muhammad Hammad Rasool, Asif Zamir, Khaled A. Elraies, Maqsood Ahmad, Muhammad Ayoub, Muhammad Adeem Abbas, Imtiaz Ali
Summary: The use of ionic liquids as drilling fluid additives has been a topic of research, but their toxicity and non-environmentally friendly nature has shifted the focus to deep eutectic solvents as a more cost-effective and non-toxic alternative. Deep eutectic solvents have shown promising results in improving mud performance by interacting with clay particles. Characterization studies have revealed that the enhancement of mud rheology is achieved through alteration in clay orientation and particle dispersion.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)
Article
Energy & Fuels
Moumita Maiti, Ajoy Kumar Bhaumik, Ajay Mandal
Summary: This study investigates the influence of low temperature and high pressure on polymer and nanoparticle-based drilling fluids, showing significant improvement in rheological properties and fluid loss control. The intermolecular interaction within the fluid structure in the presence of nanoparticles enhances the viscoelastic properties, leading to reduced plastic viscosity, yield point, and apparent viscosity of the drilling fluid. Additionally, the experimentation reveals minimal effects of pressure and temperature on the rheology of samples, making them suitable for applications in hydrate and deepwater drilling.
Article
Energy & Fuels
Srawanti Medhi, D. K. Gupta, Jitendra S. Sangwai
Summary: The study demonstrates that zinc oxide nanoparticles have a significant impact on the thermal stability and rheological properties of non-damaging drilling fluid (NDDF), enhancing its flexibility and efficiency in high-temperature wells.
JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
Leila Esfahanizadeh, Bahram Dabir, Fatemeh Goharpey
Summary: In this study, the hydraulic and thermal performances of nano-enhanced drilling muds were investigated using computational fluid dynamics techniques. The results showed that adding nano-fluids significantly improved cutting transport efficiency, and increasing the thermal conductivity of nano-enhanced muds effectively cooled the cutters.
ENGINEERING APPLICATIONS OF COMPUTATIONAL FLUID MECHANICS
(2022)
Article
Biochemistry & Molecular Biology
Mobeen Murtaza, Sulaiman A. Alarifi, Muhammad Shahzad Kamal, Sagheer A. Onaizi, Mohammed Al-Ajmi, Mohamed Mahmoud
Summary: This study investigated the performance of oil wetter and rheology modifier additives in oil-based drilling fluid under high temperature and pressure conditions. The results showed that extending the hot rolling time to 32 hours decreased the rheology parameters and emulsion stability, while the performance of fluid loss additive also degraded. The addition of oil wetter and rheology modifier slightly affected the rheological profile after 32 hours, but maintained flat rheology profile, with slightly decreased emulsion stability.
Article
Polymer Science
Zhongyi Wang, Jinsheng Sun, Kun Zhang, Kaihe Lv, Xianbin Huang, Jintang Wang, Ren Wang, Xu Meng
Summary: This study utilizes a temperature-sensitive polymeric rheology modifier (PNBAM) to address the low-temperature thickening issue in water-based drilling fluids in deepwater. Experimental results showed that PNBAM has good rheological properties, temperature resistance, and salt resistance. PNBAM also achieved a flat rheology in drilling fluid systems. The temperature-sensitive effect of PNBAM enhances its thickening effect with increasing temperature, making it a more novel rheology modifier compared to conventional additives.
Article
Polymer Science
Xianfeng Tan, Longchen Duan, Weichao Han, Ying Li, Mingyi Guo
Summary: The synthesized zwitterionic copolymer showed improved rheological and filtration properties in water-based drilling fluid, resisting the negative impact of elevated temperature and salts contamination, particularly suitable for ultradeep or geothermal drilling operations.
Article
Chemistry, Physical
Xiangru Jia, Xionghu Zhao, Bin Chen, Saviour Bassey Egwu, Zhiyang Huang
Summary: This study aimed to improve the performance of water-based drilling fluids for high temperature, salt, and calcium resistance in deep and ultra-deep wells. By adding copolymers to the drilling fluid, the rheological properties were maintained, filtration volume was reduced, and the drilling fluid successfully resisted high temperatures and high salt concentrations.
APPLIED SURFACE SCIENCE
(2022)
Article
Energy & Fuels
Emine Yalman, Gabriella Federer-Kovacs, Tolga Depci, Hani Al Khalaf, Volkan Aylikci, Mustafa Goktan Aydin
Summary: The aim of this study was to develop inhibitive drilling fluid systems using waste materials to improve the rheological and filtration properties of drilling fluids. The experimental results showed that drilling fluids formulated with fly ash and rice husk ash enhanced rheological properties and decreased fluid loss and mud cake thickness, improving the performance of drilling operations.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Thermodynamics
Karani Kurtulus, Ali Bolatturk, Ahmet Coskun, Baris Gurel
Summary: The study found that conformal cooling molds can improve the cooling effect in the gravity die casting process, reduce molding defects in the products, and enhance product performance.
APPLIED THERMAL ENGINEERING
(2021)
Article
Engineering, Chemical
Alireza Rezaei, Seyed Reza Shadizadeh
Summary: This study demonstrates that formation water can serve as an inhibitive base water for water-based drilling fluids with inhibitory power surpassing NaCl and approaching KCl. Additionally, it reduces the need for freshwater and commercial salts, making it a preferred option from both environmental and economic perspectives.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Energy & Fuels
Jiang Guancheng, Shi He, He Yinbo
Summary: This study focuses on the high cost and non-renewability issue of the base oil used in current synthetic drilling fluids, and investigates a low-cost, environmentally friendly, and renewable biodiesel-based flat-rheology drilling fluid. By optimizing the raw materials, soybean oil ethyl ester biodiesel with good flowability at low temperatures is selected as the base oil. Various techniques, such as selecting a high oil-water ratio and introducing a cationic surfactant, are employed to improve the rheological properties and stability of the drilling fluid. The formulated biodiesel-based flat-rheology drilling fluid system maintains constant rheology within a temperature range and exhibits good environmental adaptability.
PETROLEUM EXPLORATION AND DEVELOPMENT
(2022)
Review
Energy & Fuels
Asif Zamir, Khaled A. Elraies, Muhammad Hammad Rasool, Maqsood Ahmad, Muhammad Ayoub, Muhammad Adeem Abbas, Imtiaz Ali
Summary: Ionic liquids as drilling fluid additives have been successfully used to modify mud rheology, with the effectiveness depending on the length of the alkyl chain and the interaction between the ionic liquid and the clay. Research shows that intercalation of ionic liquids between clay layers alters clay structure and mud rheology. Factors like alkyl chain hydrophobicity, polarity, and solubility play a crucial role in modifying clay wetting and dispersion behavior, ultimately affecting mud filtration and rheological properties.
JOURNAL OF PETROLEUM EXPLORATION AND PRODUCTION TECHNOLOGY
(2022)