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White-box machine-learning models for accurate interfacial tension prediction in hydrogen-brine mixtures

Clean Energy 2024年第5期8卷 252-264页

作者： Qichao Lv Jinglei Xue Xiaochen Li Farzaneh Rezaei Aydin Larestani Saeid Norouzi-Apourvari Hadi Abdollahi Abdolhossein Hemmati-Sarapardeh College of Carbon Neutral Energy China University of Petroleum(Beijing)BeijingChina Unconventional petroleum Research Institute China University of Petroleum(Beijing)BeijingChina CNPC Bohai Drilling engineering Company Limited TianjinChina department of petroleum engineering Amirkabir University of TechnologyTehranIran department of petroleum engineering Shahid Bahonar University of KermanKermanIran

The severity of climate change and global warming necessitates the need for a transition from traditional hydrocarbon-based energy sources to renewable energy *** intrinsic challenge with renewable energy sources is their intermittent nature,which can be addressed by transforming excess energy into hydrogen and storing it safely for future *** securely store hydrogen underground,a comprehensive knowledge of the interactions between hydrogen and residing fluids is *** tension is an important variable influenced by cushion gases such as CO_(2) and *** research developed explicit correlations for approximating the interfacial tension of a hydrogen–brine mixture using two advanced machine-learning techniques:gene expression programming and the group method of data *** interfacial tension of a hydrogen–brine mixture was considered to be heavily influenced by temperature,pressure,water salinity,and the average critical temperature of the gas *** results indicated a higher performance of the group method of data handling-based correlation,showing an average absolute relative error of 4.53%.Subsequently,Pearson,Spearman,and Kendall methods were used to assess the influence of individual input variables on the outputs of the *** showed that the temperature and the average critical temperature of the gas mixture had considerable inverse impacts on the estimated interfacial tension ***,the reliability of the gathered databank and the scope of application for the proposed correlations were verified using the leverage approach by illustrating 97.6%of the gathered data within the valid range of the Williams plot.

关键词： underground hydrogen storage interfacial tension cushion gas correlation gene expression programming group method of data handling

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Recent techniques on analyses and characterizations of shale gas and oil reservoir

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Energy Reviews 2024年第2期3卷 31-62页

作者： Yamin Wang Zhenlin Wang Zhengchen Zhang Shanshan Yao Hong Zhang Guoqing Zheng Feifei Luo Lele Feng Kouqi Liu Liangliang Jiang Institute of Energy Peking UniversityBeijing100871China Petro China Xinjiang Oilfield Company Karamay834000China School of mining and petroleum engineering University of AlbertaEdmontonAlbertaCanada College of Construction engineering Jilin UniversityChangchun130061China School of Safety engineering China University of Mining and TechnologyXuzhouChina department of Chemical and petroleum engineering University of CalgaryCalgaryAlbertaCanada

This article offers a comprehensive review focused on the analysis and characterization of shale reservoirs,unconventional hydrocarbon resources that uniquely serve as both the source reservoir for gas and oil,and the *** analyze and characterize shale reservoirs,pore structure,rock components and rock mechanical properties are three main factors to *** three main factors are necessary for successful field operations in shale *** now,there are various techniques utilized to characterize these three ***,this study delves into the intricacies of shale reservoir's pore structure,rock components and mechanical properties under varying geological conditions,summarizing various techniques utilized to characterize these properties in previous *** study also discusses the role of analytical techniques in understanding the complex interactions between kerogen and the surrounding mineral *** providing a summary of various techniques operated on the mentioned three main factors,this paper supplies the effective and optimal technique on analyzing different properties of shale ***,the paper aims to contribute to more effective resource assessment and production optimization in shale reservoirs,offering insights that have significant implications for the future of unconventional hydrocarbon extraction.

关键词： Shale reservoir Pore structure Rock components Mechanical test Kerogen

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Application of geophysical well logs in solving geologic issues:Past,present and future prospect

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Geoscience Frontiers 2024年第3期15卷 85-118页

作者： Jin Lai Yang Su Lu Xiao Fei Zhao Tianyu Bai Yuhang Li Hongbin Li Yuyue Huang Guiwen Wang Ziqiang Qin National Key Laboratory of petroleum Resources and engineering China University of Petroleum(Beijing)Beijing 102249China College of Geosciences China University of Petroleum(Beijing)Beijing 102249China department of petroleum engineering University of WyomingLaramieWY 82071USA

Geophysical well logs are widely used in geological fields,however,there are considerable incompatibilities existing in solving geological issues using well log *** review critically fills the gaps between geology and geophysical well logs,as assessed from peer reviewed papers and from the authors’personal experiences,in the particular goal of solving geological issues using geophysical well *** origin and history of geophysical logging are *** follows a review of the state of knowledge for geophysical well logs in terms of type of specifications,vertical resolution,depth of investigations and demonstrated *** the current status and advances in applications of geophysical well logs in fields of structural geology,sedimentary geology and petroleum geology are *** logs are used in structural and sedimentary geology in terms of structure detection,in situ stress evaluation,sedimentary characterization,sequence stratigraphy division and fracture *** logs can also be applied in petroleum geology fields of optimizing sweet spots for hydraulic fracturing in unconventional oil and gas *** well logs are extending their application in other fields of geosciences,and geological issues will be efficiently solved via well logs with the improvements of advanced well log *** work is required in order to improve accuracy and diminish uncertainties by introducing artificial *** review provides a systematic and clear descriptions of the applications of geophysical well log data along with examples of how the data is displayed and processed for solving geologic problems.

关键词： Geophysical well logs Sequence stratigraphy Source rock Unconventional oil and gas resources Artificial intelligence

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Role of high-density brines in reservoir development stages:A review

Energy Geoscience

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Energy Geoscience 2024年第3期5卷 13-23页

作者： Arshad Raza Mohamed Mahmoud Saad Alafnan Muhammad Arif Farzain Ud Din Kirmani Muhammad Shahzad Kamal Mobeen Murtaza Azeem Rana College of petroleum engineering and Geosciences(CPG) Petroleum Engineering DepartmentKing Fahd University of Petroleum&Minerals(KFUPM)DhahranSaudi Arabia petroleum engineering department Khalifa UniversityAbu Dhabi127788United Arab Emirates department of petroleum and Gas engineering N.F.C.Institute of Engineering&TechnologyMultanPakistan Center for Integrative petroleum Research King Fahd University of Petroleum&Minerals31261DhahranSaudi Arabia department of Chemistry University of Management and TechnologyLahorePakistan

High-density brines have been recognized beneficial for oilfield applications,with various key areas such as drilling,completion and formation ***-density brines can play a critical role in the development and production of oil and gas reservoirs during the primary,secondary,and tertiary recovery ***-density brines can enhance the mobility and recovery of the oil in the reservoir by controlling the density and ***,a less attention has been given to the application of high-density brine in the area of reservoir *** review is shedding light on a concise overview of reservoir development stages in association with the recovery *** addition,most possible applications of high-density fluids have also been reviewed in the field of the reservoir *** summary,this review state that high-density brines can be used to stimulate reservoirs by hydraulic fracturing during the primary recovery ***,the risk of increased interfacial tension,which relies on the density difference of two fluids,can trap more residual oil relative to conventional water *** addition,high-density brines are effective in decreasing the mobility ratio and facilitating favorable displacement during polymer ***,they can be least effective in alkaline flooding due to the high IFT related to large density ***,it is suggested to consider the utilization of sustainable high-density brines by taking into account effective factors in petroleum engineering aspects such as stimulation,secondary recovery and polymer flooding.

关键词： Reservoir development Brine High density Environment Sustainability

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Rock physical characteristics of deep dolomite under complex geological conditions: A case study of 4th Member of Sinian Dengying Formation in the Sichuan Basin, China

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petroleum Science 2024年第4期21卷 2370-2382页

作者： Chuang Li Shu-Xin Pan Hong-Bin Wang Ji-Xin Deng Jian-Guo Zhao Zhi Li Yu Zhang Northwest Branch of Research Institute of petroleum Exploration & Development department of Geophysics and Exploration College of Geophysics Chengdu University of Technology State Key Laboratory of petroleum Resources and engineering China University of Petroleum (Beijing)

The deep-ultra deep carbonate reservoir in China, commonly subjected to modification of multi-stage diagenesis, has extremely high heterogeneity. Conventional rock physics analysis cannot accurately identify the elastic responses of reservoir. Here, the rock physics properties of the dolomite from the 4th Member of the Sinian Dengying Formation are experimentally measured, and the change law of rock physics characteristics is investigated within the framework of the diagenetic processes by the analysis of the elastic and petrologic characteristics, pore structure, and sedimentary environments. The results show that the differentiated diagenesis results in different pore structure characteristics and microtexture characteristics of the rock. The microbial dolomite of the algal mound-grain beach facies is subjected to the contemporaneous microbial dolomitization and seepage-reflux dolomitization, penecontemporaneous selective dissolution, burial dolomitization, and hydrothermal dolomitization. The resultant crystalline dolomite is found with one main type of the dolomite crystal contact boundaries,and the dissolution pore is extensive development. The siliceous, muddy, and limy dolomite of the interbeach sea environment mainly experiences the weak capillary concentration dolomitization, intensive mechanical compaction-induced densification, and burial dolomitization. Such crystalline dolomite is observed with four types of contact boundaries, namely the dolomite contact, clay contact, quartz contact, and calcite contact boundaries, and porosity mostly attributed to residual primary inter-granular or crystalline pores. The samples with the same crystal boundary condition have consistent correlations between the compressional-and shear-wave velocities, and between the compressional-wave velocity and the velocity ratio. Additionally, the variation of the acoustic velocity with effective pressure and the intensity of pore-scale fluid-related dispersion are controlled by t

关键词： Deep-ultra deep carbonate reservoirs Rock physics properties Dolomite Seismic elastic properties Micro-crack Pore structure types

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Auto-tuning PVT data using multi-objective optimization:Application of NSGA-II algorithm

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petroleum 2024年第1期10卷 135-149页

作者： Abdolhadi Zarifi Mohammad Madani Mohammad Jafarzadegan Reservoir engineering Systems Petroleum Engineering DepartmentMain Office Building of National Iranian South Oil Company(NISOC)AhvazIran Reservoir engineering Division Petroleum Engineering DepartmentPetroleum Engineering and Development Company(PEDEC)TehranIran Combined Planning Management National Iranian Oil Company(NIOC)TehranIran

Reservoir simulation is known as perhaps the most widely used,accurate,and reliable method for field development in the petroleum *** integral part of a reliable reservoir simulation process is to consider robust and rigorous tuned EOS ***,EOS models are tuned iteratively through arduous workflows against experimental PVT ***,this comes with a number of drawbacks such as forcingly using weight factors,which upon alteration adversely affects the optimization *** objective of the current work is thus to introduce an auto-tune PVT matching tool using NSGA-II multi-objective *** order to illustrate the robustness of the presented technique,three different PVT samples are used,including two black-oil and one gas condensate *** utilize PengRobinson EOS during all the manual and auto-tuning *** of auto-tuned EOS-generated results with those of experimental and computed statistical error values for these samples clearly show that the proposed method is *** addition,the proposed method,contrary to the manual matching process,provides the engineer with several matched solutions,which allows them to select a match based on the engineering background to be best amenable to the problem at *** addition,the proposed technique is fast,and can output several solutions within less time compared to the traditional manual matching method.

关键词： Auto-tuning PVT Equation of state NSGA-II Multi-objective optimization

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A contrasting analysis of CO_(2) and N_(2) foam flood for enhanced oil recovery and geological storage of CO_(2)

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petroleum Research 2024年第1期9卷 55-60页

作者： Alireza Roozbahani Farshad Soofivan Ali Sagban Hassoon Al-Tameemi Hadi Abdollahi Sogand Saatchi Abdolhamid Ansari petroleum engineering department Faculty of Chemical EngineeringTarbiat Modares UniversityTehranIran School of Chemical and petroleum engineering Shiraz UniversityShirazIran School of Chemical and petroleum engineering Shiraz BranchIslamic Azad UniversityShirazIran department of petroleum engineering Science and Research BranchAzad UniversityTehranIran department of Chemistry and Chemical engineering Rasht BranchIslamic Azad UniversityRashtIran department of petroleum engineering Lamerd BranchIslamic Azad UniversityLamerdIran

Foam flooding using CO_(2)has emerged as a promising method for both enhanced oil recovery(EOR)and the storage of CO_(2)in geological *** study conducts a thorough analysis of the behavior of CO_(2)and N_(2)foams in bulk and porous media,utilizing bubble-scale analyses and foam flooding *** study compares the foamability and longevity of CO_(2)and N_(2)foams,with findings indicating that N_(2)foam bubbles tend to be smaller and less varied in size than CO_(2)foam bubbles,leading to increased foam ***,the study compares the half-lives of CO_(2)and N_(2)foams generated through sparging and winding methods,showing that N_(2)foam has half-lives 22 and 10 times greater than CO_(2)foam when produced using the sparging and winding methods,***,CO_(2)foam generated through the sparging method had a lower foaming volume than N_(2)foam due to CO_(2)'s *** the foam flooding experiments,N_(2)foam proved more effective in recovering oil from porous media than CO_(2)foam,thus demonstrating the effectiveness of the foam injection *** results offer valuable insights into the differing performance of N_(2)and CO_(2)foam floods for EOR and CO_(2)geological storage.

关键词： CO_(2) storage Foam flood Enhanced oil recovery N_(2) foam CO_(2) foam

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New insights into the deposition of natural gas hydrate on pipeline surfaces:A molecular dynamics simulation study

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petroleum Science 2024年第1期21卷 694-704页

作者： Jun Zhang Hai-Qiang Fu Mu-Zhi Guo Zhao Wang Li-Wen Li Qi Yin You-Guo Yan Wei Wei Wei-Feng Han Jie Zhong School of Materials Science and engineering China University of Petroleum(East China)Qingdao 266580ShandongChina School of petroleum engineering China University of Petroleum(East China)Qingdao 266580ShandongChina department of Alternative Energy PetroChina Research Institute of Petroleum Exploration&DevelopmentLangfang 065007HebeiChina

Natural gas hydrate(NGH)can cause pipeline blockages during the transportation of oil and gas under high pressures and low *** hydrate adhesion on pipelines is viewed as an efficient way to prevent NGH *** studies suggested the water film can greatly increase hydrate adhesion in gas-dominant ***,by performing the molecular dynamics simulations,we find in water-dominant system,the water film plays different roles in hydrate deposition on Fe and its corrosion ***,due to the strong affinity of water on Fe surface,the deposited hydrate cannot convert the adsorbed water into hydrate,thus,a water film *** water affinities decrease(Fe>Fe_(2)O_(3)>FeO>Fe_(3)O_(4)),adsorbed water would convert to amorphous hydrate on Fe_(2)O_(3)and form the ordered hydrate on FeO and Fe_(3)O_(4)after hydrate *** absorbed water film converts to amorphous or to hydrate,the adhesion strength of hydrate continuously increases(Fe

关键词： Deposition Natural gas hydrate Pipelines Water affinity Adhesion strength

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Comparative analysis on the performance of different types of input-and command-shaping controllers in minimizing payload residual vibration of an overhead crane with an inclined supporting track

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International Journal of Mechanical System Dynamics 2024年第1期4卷 22-33页

作者： Mohammed Alfares Khaled Alhazza Mechanical engineering department College of Engineering and PetroleumKuwait UniversityKuwait CityKuwait

Reducing the effects of external disturbance on overhead crane systems is crucial,as they can impair the controller performance and cause excessive vibrations or oscillations of the *** such external disturbance is the inclination of the supporting track of the crane trolley,which causes the system dynamics model to *** open-loop control strategy is widely utilized to control the payload sway motion and generally does not require any alterations in the physical structure of a system or the installation of sensors and/or *** and command shaping are two common open-loop control techniques applied to control overhead *** this paper,the effect of moving an overhead crane system along an inclined supporting track is *** addition,the ability of different types of input-and command-shaping control schemes to suppress the residual vibrations due to trolley track inclination is *** types of input-shaping controllers,which are double-step,zero vibration,and one command waveform(WF)shaper based on a trigonometric function,are used and tested.A linear equation of motion of the overhead crane resting on an inclined surface is developed to simulate the overhead crane and payload *** effectiveness of the different types of open-loop controllers to suppress residual vibrations is verified by both simulation and experimental *** addition,a new WF command shaper is proposed and designed to overcome track inclination while eliminating payload residual vibration.A comprehensive comparative analysis,both numerically and experimentally,is performed on the new proposed shaper to measure its effectiveness in handling inclination when compared to other types of open-loop *** new shaper outperforms other controllers in eliminating payload residual vibration for a wider range of inclination angles.

关键词： overhead cranes open-loop control input and command shaping payload residual vibrations

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MgO-attached graphene nanosheet(MgO@GNS)reinforced magnesium matrix nanocomposite with superior mechanical,corrosion and biological performance

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International Journal of Minerals,Metallurgy and Materials 2024年第9期31卷 2062-2076页

作者： S.Abazari A.Shamsipur H.R.Bakhsheshi-Rad M.S.Soheilirad F.Khorashadizade S.S.Mirhosseini department of Materials and metallurgical engineering Amirkabir University of TechnologyTehran ***Iran Iranian National Standards Organization of Hormozgan HormozganIran Advanced Materials Research Center Department of Materials EngineeringNajafabad BranchIslamic Azad UniversityNajafabadIran department of Materials and metallurgical engineering Iran University of Science and TechnologyTehranIran

Magnesium(Mg)alloys are gaining great consideration as body implant materials due to their high biodegradability and ***,they suffer from low corrosion resistance and antibacterial *** this research,semi-powder metallurgy followed by hot extrusion was utilized to produce the magnesium oxide@graphene nanosheets/magnesium(MgO@GNS/Mg)composite to improve mechanical,corrosion and cytocompatibility *** have revealed that the incorporation of MgO@GNS nanohybrids into Mg-based composite enhanced microhardness and compressive *** vitro,osteoblast cell culture tests show that using MgO@GNS nanohybrid fillers enhances osteoblast adhesion and apatite *** presence of MgO@GNS nanoparticles in the composites decreased the opening defects,micro-cracks and micro-pores of the composites thus preventing the penetration of the corrosive solution into the *** demonstrated that the MgO@GNS/Mg composite possesses excellent antibacterial properties because of the combination of the release of MgO and physical damage to bacterium membranes caused by the sharp edges of graphene nanosheets that can effectively damage the cell wall thereby facilitating penetration into the bacterial lipid ***,the MgO@GNS/Mg composite with high mechanical strength,antibacterial activity and corrosion resistance is considered to be a promising material for load-bearing implant applications.

关键词： metal matrix composites MgO@GNS nanohybrid strengthening mechanisms antibacterial activity biocompatibility

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