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Browsing School of Mining and Geosciences by Title
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Battalgazy, Nurassyl; Madani, Nasser
(Natural Resources Research, 2019-03)
Mineral resource classification plays an important role in the downstream activities of a
mining project. Spatial modeling of the grade variability in a deposit directly impacts the
evaluation of recovery functions, such ...
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Bakhytzhanova, Madina
(Nazarbayev University School of Mining and Geosciences, 2020)
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Smagambetov, Bekzhan
(Nazarbayev University School of Mining and Geosciences, 2022-04-04)
Shafts play an important function in terms of safety and profitability throughout the life of a mining operation. The access shaft stability has always been a significant challenge in mining engineering, especially as ...
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Hashim Abbas, Azza; Abd Alsaheb, Ramzi A.; Kamil Abdullah, Jaafar
(Petroleum, 2022)
In chemical enhanced oil recovery (CEOR), it is very important to utilize the excessive usage of chemicals. A great opportunity lies in adopting natural surfactants, since it is cheaper, ecosystem friendly, and less toxic ...
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Tazikeh, Simin; Davoudi, Abdollah; Shafiei, Ali; Parsaei, Hossein; Atabaev, Timur Sh.; Ivakhnenko, Oleksandr P.
(ACS Omega, 2022)
Predicting asphaltene onset pressure (AOP) and bubble point pressure (Pb) is essential for optimization of gas
injection for enhanced oil recovery. Pressure-Volume-Temperature or PVT studies along with equations of state ...
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Ismagulov, Shyngys
(School of Mining and Geosciences, 2023-04-20)
The petroleum industry plays a crucial role in the global economy, but the construction and operation of underground pipelines in petroleum fields are associated with significant economic and environmental challenges. This ...
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Khan, Javed Akbar; Irfan, Muhammad; Irawan, Sonny; Yao, Fong Kam; Abdul Rahaman, Md Shokor; Shahari, Ahmad Radzi; Glowacz, Adam; Zeb, Nazia
(MDPI, 2020-07-17)
Stuck pipe incidents are one of the contributors to non-productive time (NPT), where they can result in a higher well cost. This research investigates the feasibility of applying machine learning to predict events of stuck ...
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Madani, Nasser; Emery, Xavier
(Stochastic Environmental Research and Risk Assessment, 2018-07-06)
Cokriging allows predicting coregionalized variables from sampling information, by considering their spatial joint depen- dence structure. When secondary covariates are available exhaustively, solving the cokriging equations ...
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Yermukhanbetov, K; Yazitova, A; Yagiz, S
(Mechanics and Rock Engineering, from Theory to Practice, 2022)
Rock brittleness is one of the most significant properties of rock having a major impact
not only on the failure process of intact rock but also on the response of rock mass to rock
excavation. In fact, the brittleness ...
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Yang, Jie; Yagiz, Saffet; Liu, Ying-Jing; Laouafa, Farid
(Underground Space, 2021-05-14)
To date, the accurate prediction of tunnel boring machine (TBM) performance remains a considerable challenge owing to the complex
interactions between the TBM and ground. Using evolutionary polynomial regression (EPR) and ...
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Bekmurat, Altynay
(Nazarbayev University School of Mining and Geosciences, 2022-08-08)
The uniaxial compressive strength is a very important parameter in mine design. For weak
rocks such as coal, it is particularly difficult to obtain cores for mechanical testing. Especially for the weak rocks, another ...
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Madani, Nasser; Carranza, John
(Natural Resources Research, 2020-02-01)
Identification of geochemical anomalies is of particular importance for tracing the footprints
of anomalies. This can be implemented by advanced techniques of exploratory data analysis,
such as fractal/multi-fractal ...
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Shafiei, Ali; Ahmadi, Mohammad Ali; Dusseault, Maurice B.; Elkamel, Ali; Zendehboudi, Sohrab; Chatzis, Ioannis
(Energies, doi:10.3390/en11020292, 2018-01-28)
Thermal oil recovery techniques, including steam processes, account for more than 80%
of the current global heavy oil, extra heavy oil, and bitumen production. Evaluation of Naturally Fractured Carbonate Reservoirs (NFCRs) ...
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Salimova, Rashida; Pourafshary, Peyman; Wang, Lei
(Applied Sciences, 2021-07)
Low salinity water (LSW) injection is a promising Enhanced Oil Recovery (EOR) techniquethat has the potential to improve oil recovery and has been studied by many researchers. LSWflooding in carbonates has been widely ...
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Salimova, Rashida
(Nazarbayev University School of Mining and Geosciences, 2021-07)
Maximizing crude oil recovery is a main objective of the oil and gas industry. Oil recovery by natural production in carbonates is usually lower than 30%. Thus, Enhanced Oil Recovery (EOR) methods are used to increase the ...
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Tatar, Afshin; Askarova, Ingkar; Shafiei, Ali; Rayhani, Mahsheed
(ACS Omega, 2021-11-16)
Low salinity waterflooding (LSWF) and its variants also known as smart water or ion tuned water injection have
emerged as promising enhanced oil recovery (EOR) methods. LSWF is a complex process controlled by several ...
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Khan, Mohammad Kamal Asif; Khan, Javed Akbar; Ullah, Habib; Al-Kayiem, Hussain H.; Irawan, Sonny; Irfan, Muhammad; Glowacz, Adam; Liu, Hui; Glowacz, Witold; Rahman, Saifur
(MDPI AG, 2021-04-16)
The present study investigates the effect of TiO2 nanoparticles on the stability of Enhanced Oil Recovery (EOR)-produced stable emulsion. The chemical precipitation method is used to synthesize TiO2 nanoparticles, and their ...
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Bastami, Alireza; Pourafshary, Peyman; Shafiei, Ali
(Energies, 2018-10-20)
Very few thermodynamic models exist for estimation of density alteration due to solution of CO2 in a pure H2O and CaCl2–H2O system. All of these models require density of CaCl2 solution to estimate density of CaCl2–H2O–CO2 ...
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Bastami, Alireza; Pourafshary, Peyman; Shafiei, Ali
(MDPI, 2018-10-20)
Very few thermodynamic models exist for estimation of density alteration due to solution of
CO2 in a pure H2O and CaCl2–H2O system. All of these models require density of CaCl2 solution to
estimate density of CaCl2–H2O–CO2 ...
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Khan, Javed Akbar; Irawan, Sonny; Dan, Iliyas Bin Md; Cai, Baoping
(Ain Shams Engineering Journal, 2021)
Determining the magnitude of an influx into the wellbore when a kick event occurs is very important
during well design as well as the well execution phases. This research is conducted to determine the kick
tolerance where ...