The understanding of reservoir rock properties such as porosity, permeability, water saturation, and resistivity assists engineers to improve the characterization of the reservoir, and the cementation exponent m is an intrinsic property of the rock related to the geometry of the electrically-conductive water network imposed by the pore walls or surfaces of solid insulating materials. Archie’s parameters, namely m, n, and a, are sometimes assumed constant to simplify petrophysical measurements. But these parameters are not constant, particularly in heterogeneous reservoirs. Inaccurate estimates of these parameters can cause significant errors in the calculation of water saturation when using Archie’s equation and lead to discrepancies between log interpretation and production test results. There are many factors affecting cementation factor (m) such as porosity, pore throat size, type of rock grains, type and distribution of clay content, degree of cementation, and overburden pressure. This study has been undertaken in two oil fields: A-Libya, and B-Libya in the Sirt Basin located in Libya, the Nubian Sandstone formation is the main reservoir in these oil fields. Laboratory measurements such as porosity, and resistivity were conducted on core samples selected from two different fields. The results of electrical resistivity experiments are used to derive a new cementation factor correlation which can be applied to Nubian formations located in Sirt Basin. Crossplots of formation factor and porosity were created from measured data points for one hundred and ninty eight core samples. The analysis procedures for each field was made sequencely and finally, a good relation between formation resistivity factor and porosity for two fields and the correlations for calculation cementation factor were obtained for the Nubian sandstone formation, and the average Relative error of the data points when deriving these correlation was very small which indicates that these correlations are consistent.
{"title":"Deriving a Correlation of Cementation Factor in Nubian Sandstone Formation (Upper and Lower Cretaceous), Sirt Basin","authors":"Hm Sbiga, Gamal A. Alusta","doi":"10.18689/IJPR-1000149","DOIUrl":"https://doi.org/10.18689/IJPR-1000149","url":null,"abstract":"The understanding of reservoir rock properties such as porosity, permeability, water saturation, and resistivity assists engineers to improve the characterization of the reservoir, and the cementation exponent m is an intrinsic property of the rock related to the geometry of the electrically-conductive water network imposed by the pore walls or surfaces of solid insulating materials. Archie’s parameters, namely m, n, and a, are sometimes assumed constant to simplify petrophysical measurements. But these parameters are not constant, particularly in heterogeneous reservoirs. Inaccurate estimates of these parameters can cause significant errors in the calculation of water saturation when using Archie’s equation and lead to discrepancies between log interpretation and production test results. There are many factors affecting cementation factor (m) such as porosity, pore throat size, type of rock grains, type and distribution of clay content, degree of cementation, and overburden pressure. This study has been undertaken in two oil fields: A-Libya, and B-Libya in the Sirt Basin located in Libya, the Nubian Sandstone formation is the main reservoir in these oil fields. Laboratory measurements such as porosity, and resistivity were conducted on core samples selected from two different fields. The results of electrical resistivity experiments are used to derive a new cementation factor correlation which can be applied to Nubian formations located in Sirt Basin. Crossplots of formation factor and porosity were created from measured data points for one hundred and ninty eight core samples. The analysis procedures for each field was made sequencely and finally, a good relation between formation resistivity factor and porosity for two fields and the correlations for calculation cementation factor were obtained for the Nubian sandstone formation, and the average Relative error of the data points when deriving these correlation was very small which indicates that these correlations are consistent.","PeriodicalId":153789,"journal":{"name":"International Journal of Petrochemistry and Research","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122319053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rana Saqer Gamal Alusta, Hadel Mohsen, Gamal A. Alusta
The objective of this work is to asses and select the development options using polymer process that maximize oil recovery for a synthetic reservoir model where technical parameters are optimized thoroughly. Reservoir simulation study using ECLIPSE 100 was used to simulate the synthetic model to investigate the different development options of polymer flooding applied and compare them to water flooding. The development options include continuous polymer injection, water alternating polymer, and polymer slug injection. Through the study, the effect of injection rate, polymer concentration, slug size, and well completion were investigated by setting up a range of sensitivities.
{"title":"Effect of Well Completion, Slug Size and WAP Timing on the Performance of Polymer Flooding","authors":"Rana Saqer Gamal Alusta, Hadel Mohsen, Gamal A. Alusta","doi":"10.18689/IJPR-1000148","DOIUrl":"https://doi.org/10.18689/IJPR-1000148","url":null,"abstract":"The objective of this work is to asses and select the development options using polymer process that maximize oil recovery for a synthetic reservoir model where technical parameters are optimized thoroughly. Reservoir simulation study using ECLIPSE 100 was used to simulate the synthetic model to investigate the different development options of polymer flooding applied and compare them to water flooding. The development options include continuous polymer injection, water alternating polymer, and polymer slug injection. Through the study, the effect of injection rate, polymer concentration, slug size, and well completion were investigated by setting up a range of sensitivities.","PeriodicalId":153789,"journal":{"name":"International Journal of Petrochemistry and Research","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128357673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of an Appropriate Model for predicting Pore Pressure in Niger delta, Nigeria using Offset Well Data","authors":"A. Tanko, K. Bello, I. Tanko","doi":"10.18689/IJPR-1000147","DOIUrl":"https://doi.org/10.18689/IJPR-1000147","url":null,"abstract":"","PeriodicalId":153789,"journal":{"name":"International Journal of Petrochemistry and Research","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114465745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L Aouinti1, FDS Boukraa2, S Chirane2 and S Mohand Arab2 1 Laboratory of Polymer Chemistry (LCP), University of Sciences and Technology Oran Mohamed Boudiaf (USTO.MB), B.P. 1505 El Menaouer, Oran 31000, Algeria 2 Laboratory of Physics-Chemistry of Materials (L.P.C.M): Catalyse and Environment, University of Sciences and Technology Oran Mohamed Boudiaf (USTO.MB), B.P. 1505 El Menaouer, Oran 31000, Algeria
L Aouinti1, FDS boukra2, S chiran2和S Mohand Arab2 1高分子化学实验室(LCP)， Oran Mohamed Boudiaf科技大学(USTO.MB)， B.P. 1505 El Menaouer, Oran 31000，阿尔及利亚2材料物理化学实验室(L.P.C.M):催化与环境，Oran Mohamed Boudiaf科技大学(USTO.MB)， B.P. 1505 El Menaouer, Oran 31000
{"title":"Preparation of PVC-NiFeCo3-Hybrid membranes for the Pervaporation Separation of Toluene-Heptane mixtures","authors":"L. Aouinti, Fds Boukraa, S. Chirane, S. Arab","doi":"10.18689/IJPR-1000146","DOIUrl":"https://doi.org/10.18689/IJPR-1000146","url":null,"abstract":"L Aouinti1, FDS Boukraa2, S Chirane2 and S Mohand Arab2 1 Laboratory of Polymer Chemistry (LCP), University of Sciences and Technology Oran Mohamed Boudiaf (USTO.MB), B.P. 1505 El Menaouer, Oran 31000, Algeria 2 Laboratory of Physics-Chemistry of Materials (L.P.C.M): Catalyse and Environment, University of Sciences and Technology Oran Mohamed Boudiaf (USTO.MB), B.P. 1505 El Menaouer, Oran 31000, Algeria","PeriodicalId":153789,"journal":{"name":"International Journal of Petrochemistry and Research","volume":"221 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131635635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis and Accuracy of Experimental Methods","authors":"M. Higazy","doi":"10.18689/IJPR-1000145","DOIUrl":"https://doi.org/10.18689/IJPR-1000145","url":null,"abstract":"","PeriodicalId":153789,"journal":{"name":"International Journal of Petrochemistry and Research","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115778119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Natural gas as one the most significant fossil fuels, is playing a crucial role in national energy mix in different countries. Nevertheless, its applications have not been limited to energy providing, and has been used widely as the feed stock in production of different varieties of petrochemicals. So that most of new Iranian petrochemical complexes are designed and constructed based on natural gas feed. Natural gas was firstly produced as one of the byproducts of crude oil and mostly was burned. Gradually along with increasing volumes of extracted natural gas, planning on gathering and using associated gas resulted in more usage of natural gas in different sectors including petrochemical feed and fuel. Following the developments, National Iranian Gas Company (NIGC) was established in 1965 as one of the subsidiaries of the petroleum ministry with initial capital of 25 million Rials [1]. Since its establishment, NIGC has gradually achieved capabilities and managed to have access to various sources and facilities such as experts and efficient human resources equipped with scientific and theoretical vision and knowledge, tools, equipment, machinery and various advanced workshops for implementing its operations proportionate with the economic and social development trend of the country, so that it can independently accomplish all the related tasks complying with the valid international acceptable standards. Today, NIGC as one of the 4 main subsidiaries of the petroleum ministry is supplying more than 75 percent of total energy in the country as well as the feed stock for tens of petrochemical and industrial complexes around the country. The company is also operating one of the biggest high pressure gas transmission and distribution networks of the world facilitating export, import, transit and swap of natural gas in the country. In the point of natural gas treatment and supply, the company has the first position in the Middle East and is considered as one of major gas companies around the world. At the time being, the number of the NIGC permanent staff is more than19000 official staff and more than 19300 total staff [2].
{"title":"Iran, the Key Player of Transition","authors":"Hedayat Omidvar","doi":"10.18689/IJPR-1000144","DOIUrl":"https://doi.org/10.18689/IJPR-1000144","url":null,"abstract":"Natural gas as one the most significant fossil fuels, is playing a crucial role in national energy mix in different countries. Nevertheless, its applications have not been limited to energy providing, and has been used widely as the feed stock in production of different varieties of petrochemicals. So that most of new Iranian petrochemical complexes are designed and constructed based on natural gas feed. Natural gas was firstly produced as one of the byproducts of crude oil and mostly was burned. Gradually along with increasing volumes of extracted natural gas, planning on gathering and using associated gas resulted in more usage of natural gas in different sectors including petrochemical feed and fuel. Following the developments, National Iranian Gas Company (NIGC) was established in 1965 as one of the subsidiaries of the petroleum ministry with initial capital of 25 million Rials [1]. Since its establishment, NIGC has gradually achieved capabilities and managed to have access to various sources and facilities such as experts and efficient human resources equipped with scientific and theoretical vision and knowledge, tools, equipment, machinery and various advanced workshops for implementing its operations proportionate with the economic and social development trend of the country, so that it can independently accomplish all the related tasks complying with the valid international acceptable standards. Today, NIGC as one of the 4 main subsidiaries of the petroleum ministry is supplying more than 75 percent of total energy in the country as well as the feed stock for tens of petrochemical and industrial complexes around the country. The company is also operating one of the biggest high pressure gas transmission and distribution networks of the world facilitating export, import, transit and swap of natural gas in the country. In the point of natural gas treatment and supply, the company has the first position in the Middle East and is considered as one of major gas companies around the world. At the time being, the number of the NIGC permanent staff is more than19000 official staff and more than 19300 total staff [2].","PeriodicalId":153789,"journal":{"name":"International Journal of Petrochemistry and Research","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127280696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Introduction to Smart Oil and Gas Wells: Drilling, Completion and Monitoring Solutions","authors":"A. Taha, M. Amani","doi":"10.18689/ijpr-1000143","DOIUrl":"https://doi.org/10.18689/ijpr-1000143","url":null,"abstract":"","PeriodicalId":153789,"journal":{"name":"International Journal of Petrochemistry and Research","volume":"740 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122956293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Portugal is under an intensive foreign interest in exploration for oil and shale gas. The interest is onshore and offshore. There are several contracts signed for prospection by fracking. After the developments in Algarve area in October, the focus is now on the triangle formed by Figueira da Foz, Peniche and Fatima Shrine. Citizens are divided, but many assume that knowing the endogenous energy potential can be positive to reduce external dependency, security of supply and increase exports. The main general concern is the Environmental and Social impact of the prospection based on this method. This paper presents and reflects on alternatives for the fracking technique. There are several alternatives of the fracking technique that can be considered when prospecting in populated areas, such as inside rural areas. Also, these techniques can be considered in areas with economic activities based on water consumption, such as agriculture and fishery. These techniques have greater respect for the population and their activities. The incremental costs of such alternatives are not so high that could jeopardize profits for companies. Also, these techniques don’t delay in time the projected works.
外国对葡萄牙的石油和页岩气勘探兴趣浓厚。利息是在岸和离岸的。已经签订了几份利用水力压裂法进行勘探的合同。在10月份阿尔加维地区的发展之后，现在的重点是由Figueira da Foz, Peniche和Fatima Shrine组成的三角形。民众意见不一，但许多人认为，了解国内能源潜力对减少对外依赖、保障供应和增加出口有积极作用。普遍关注的主要问题是基于这种方法的勘探对环境和社会的影响。本文对压裂技术的替代方案进行了介绍和思考。在人口稠密地区(如农村地区)进行勘探时，可以考虑几种压裂技术的替代方案。此外，这些技术也可用于农业和渔业等以用水为基础的经济活动领域。这些技术更加尊重人口及其活动。这些替代方案的增量成本不会高到危及公司利润的程度。此外，这些技术不会延迟计划工作的时间。
{"title":"Prospection techniques for Oil and shale gas","authors":"N. Domingues","doi":"10.18689/ijpr-1000142","DOIUrl":"https://doi.org/10.18689/ijpr-1000142","url":null,"abstract":"Portugal is under an intensive foreign interest in exploration for oil and shale gas. The interest is onshore and offshore. There are several contracts signed for prospection by fracking. After the developments in Algarve area in October, the focus is now on the triangle formed by Figueira da Foz, Peniche and Fatima Shrine. Citizens are divided, but many assume that knowing the endogenous energy potential can be positive to reduce external dependency, security of supply and increase exports. The main general concern is the Environmental and Social impact of the prospection based on this method. This paper presents and reflects on alternatives for the fracking technique. There are several alternatives of the fracking technique that can be considered when prospecting in populated areas, such as inside rural areas. Also, these techniques can be considered in areas with economic activities based on water consumption, such as agriculture and fishery. These techniques have greater respect for the population and their activities. The incremental costs of such alternatives are not so high that could jeopardize profits for companies. Also, these techniques don’t delay in time the projected works.","PeriodicalId":153789,"journal":{"name":"International Journal of Petrochemistry and Research","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-01-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124728058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Omidiji Adedoyin O Raimi Morufu Olalekan, T. V. Odubo, Raimi Morufu Olalekan
Despite the glittering appeal of cosmetics, their public health risk continues to mount. The US Food and Drug Administration (FDA) and European Union’s Restriction on Hazardous Substances (ROHS) reported that some cosmetic materials used by humans especially women contain hazardous substances. The aim of this research is to assess the public health risk in certain brands of lipsticks and lipglosses sold at Yenagoa metropolis. This study focuses only on the presence of lead and cadmium in randomly selected lipsticks and lipglosses. 10 samples of different brands made from different countries were randomly selected for analysis. The samples were analyzed according to standardized international protocols by wet digestion method, by Atomic Absorption Spectrophotometry. The highest concentration of lead and cadmium was detected in the lipsticks while the lipglosses contain no lead and cadmium. The safety assessment of cosmetic products is a complex issue that is not only affected by scientific questions, but should be monitored by the responsible regulatory organizations, as well as consumers, health ministry and the government for health risks. The study concludes that there is need for more women advocacy and studies on other brands of cosmetics be assess for risks of heavy metal toxicity.
{"title":"Measures of harm from heavy metal contents (Lead and Cadmium) in Womenʼs Lipstick and Lipgloss in Yenagoa Metropolis, Bayelsa state, Nigeria","authors":"Omidiji Adedoyin O Raimi Morufu Olalekan, T. V. Odubo, Raimi Morufu Olalekan","doi":"10.18689/ijpr-1000141","DOIUrl":"https://doi.org/10.18689/ijpr-1000141","url":null,"abstract":"Despite the glittering appeal of cosmetics, their public health risk continues to mount. The US Food and Drug Administration (FDA) and European Union’s Restriction on Hazardous Substances (ROHS) reported that some cosmetic materials used by humans especially women contain hazardous substances. The aim of this research is to assess the public health risk in certain brands of lipsticks and lipglosses sold at Yenagoa metropolis. This study focuses only on the presence of lead and cadmium in randomly selected lipsticks and lipglosses. 10 samples of different brands made from different countries were randomly selected for analysis. The samples were analyzed according to standardized international protocols by wet digestion method, by Atomic Absorption Spectrophotometry. The highest concentration of lead and cadmium was detected in the lipsticks while the lipglosses contain no lead and cadmium. The safety assessment of cosmetic products is a complex issue that is not only affected by scientific questions, but should be monitored by the responsible regulatory organizations, as well as consumers, health ministry and the government for health risks. The study concludes that there is need for more women advocacy and studies on other brands of cosmetics be assess for risks of heavy metal toxicity.","PeriodicalId":153789,"journal":{"name":"International Journal of Petrochemistry and Research","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115119708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fosu-Duah Evelyn Love, E. Padmanabhan, D Jeffery Overs, J. A. G. Vintaned
The variants of specific surfaces of 40 samples from the Bakoven Member of the Union Springs formation have been studied using physicochemical methods. Variations in the specific surface areas were attributed to differences in the quantities of clay minerals as well as organic matter content and types. The 2:1 clay minerals like illite and smectite were the main contributors of specific surface areas due to their large intracrystalline surfaces. Low external surface areas reported in some samples might be due to either the competition of adsorptive sites for nitrogen molecules with organic matter or the organic matter blocking of some adsorptive sites and micropores on the sample surface. The opposite is true for most of the samples that reported high TOC values suggesting that organic matter might have provided additional sorption sites for the polar compound but further study is needed to clarify. An excellent positive relationship between surface area and total organic carbon suggested that most organic matter in the samples are adsorbed.
{"title":"Variants of Specific Surfaces in the Bakoven Member: Union Springs Formation of the Marcellus Subgroup in Central New York State (USA)","authors":"Fosu-Duah Evelyn Love, E. Padmanabhan, D Jeffery Overs, J. A. G. Vintaned","doi":"10.18689/IJPR-1000140","DOIUrl":"https://doi.org/10.18689/IJPR-1000140","url":null,"abstract":"The variants of specific surfaces of 40 samples from the Bakoven Member of the Union Springs formation have been studied using physicochemical methods. Variations in the specific surface areas were attributed to differences in the quantities of clay minerals as well as organic matter content and types. The 2:1 clay minerals like illite and smectite were the main contributors of specific surface areas due to their large intracrystalline surfaces. Low external surface areas reported in some samples might be due to either the competition of adsorptive sites for nitrogen molecules with organic matter or the organic matter blocking of some adsorptive sites and micropores on the sample surface. The opposite is true for most of the samples that reported high TOC values suggesting that organic matter might have provided additional sorption sites for the polar compound but further study is needed to clarify. An excellent positive relationship between surface area and total organic carbon suggested that most organic matter in the samples are adsorbed.","PeriodicalId":153789,"journal":{"name":"International Journal of Petrochemistry and Research","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130841103","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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