检索结果-南通市图书馆

Adsorption behavior of CO_(2)/H_(2)S mixtures in calcite slit nanopores for CO_(2) storage:An insight from molecular perspective

引用

Petroleum Science 2024年第4期21卷 2444-2456页

作者： Cheng Qian zhen-hua rui Yue-Liang Liu Kai Du Chen Liu Yang Zhao Xiao-Min Ma State Key Laboratory of Petroleum Resources and Engineering China University of PetroleumBeijing102249China College of Petroleum Engineering China University of PetroleumBeijing102249China College of Carbon Neutrality Future Technology China University of PetroleumBeijing102249China College of Petroleum China University of Petroleum-Beijing at KaramayKaramay83400XinjiangChina College of Mining Engineering Taiyuan University of TechnologyTaiyuan030024ShanxiChina

It is acknowledged that injecting CO_(2) into oil reservoirs and saline aquifers for storage is a practical and affordable method for CO_(2) *** CO_(2) produced from industrial exhaust contains impurity gases such as H_(2)S that might impact CO_(2) sequestration due to competitive *** study makes a commendable effort to explore the adsorption behavior of CO_(2)/H_(2)S mixtures in calcite slit *** Canonical Monte Carlo(GCMC)simulation is employed to reveal the adsorption of CO_(2),H_(2)S as well as their binary mixtures in calcite *** show that the increase in pressure and temperature can promote and inhibit the adsorption capacity of CO_(2) and H_(2)S in calcite nanopores,***_(2)exhibits stronger adsorption on calcite surface than H_(2)*** energy plays the dominating role in the adsorption *** energy accounts for 97.11%of the CO_(2)-calcite interaction energy and 56.33%of the H_(2)S-calcite interaction energy at 10 MPa and 323.15 *** presence of H_(2)S inhibits the CO_(2) adsorption in calcite nanopores due to competitive adsorption,and a higher mole fraction of H_(2)S leads to less CO_(2) *** quantity of CO_(2) adsorbed is lessened by approximately 33%when the mole fraction of H_(2)S reaches ***_(2) molecules preferentially occupy the regions near the po re wall and H_(2)S molecules tend to reside at the center of nanopore even when the molar ratio of CO_(2) is low,indicating that CO_(2) has an adsorption priority on the calcite surface over H_(2)*** addition,moisture can weaken the adsorption of both CO_(2) and H_(2)S,while CO_(2) is more *** interestingly,we find that pure CO_(2) is more suitable to be sequestrated in the shallower formations,i.e.,500-1500 m,whereas CO_(2)with H_(2)S impurity should be settled in the deeper reservoirs.

关键词： Adsorption behavior CO_(2)/H_(2)S binary mixtures Molecular perspective Calcite slit nanopores CO_(2)sequestration

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A two-phase type-curve method with multiscale fluid transport mechanisms in hydraulically fractured shale reservoirs

引用

Petroleum Science 2023年第4期20卷 2253-2267页

作者： Feng-Yuan Zhang Lin-Jun Zou zhen-hua rui Hamid Emami-Meybodi Luis F.Ayala zheng-Xin Zhang College of Petroleum Engineering China University of Petroleum(Beijing)Beijing102249China National Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing102249China Oil and Gas Technology Research Institute PetroChina Changqing Oilfield CompanyXi'an710000ShaanxiChina College of Carbon Neutrality Future Technology China University of Petroleum(Beijing)Beijing102249China College of Petroleum China University of Petroleum(Beijing)at KaramayKaramay834000XinjiangChina College of Earth and Mineral Sciences The Pennsylvania State University(University Park)State CollegePA16802USA

The quantitative understanding of hydraulic fracture(HF)properties guides accurate production forecasts and reserve *** curve is a powerful technique to characterize HF and reservoir properties from flowback and long-term production ***,two-phase flow of water and hydrocarbon after an HF stimulation together with the complex transport mechanisms in shale nanopores exacerbate the nonlinearity of the transport equation,causing errors in type-curve ***,we propose a new two-phase type-curve method to estimate HF properties,such as HF volume and permeability of fracture,through the analysis of flowback data of multi-fractured shale *** proposed type curve is based on a semianalytical solution that couples the two-phase flow from the matrix with the flow in HF by incorporating matrix influx,slippage effect,stress dependence,and the spatial variation of fluid properties in inorganic and organic *** the first time,multiple fluid transport mechanisms are considered into two-phase type-curve analysis for shale *** analyze the flowback data from a multi-fractured horizontal well in a shale gas reservoir to verify the field application of the proposed *** results show that the fracture properties calculated by the type-curve method are in good agreement with the long-time production data.

关键词： Type curve Two-phase flow Flowback analysis Fluid transport mechanisms Shale reservoir

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Origin,migration,and accumulation of carbon dioxide in the East Changde Gas Field,Songliao Basin,northeastern China

引用

Petroleum Science 2018年第4期15卷 695-708页

作者： Yu-Ming Liu Yue Dong zhen-hua rui Xue-Song Lu Xin-Mao Zhou Li-Chun Wei College of Geosciences China University of Petroleum School of Energy Resources China University of Geosciences Research Institute of Petroleum Exploration and Development CNPC Independent Project Association Inc.

CO2reservoirs are widely distributed within the Yingcheng Formation in the Songliao Basin, but the extreme horizontal heterogeneity of CO2content causes difficulties in the exploration and exploitation of methane. Former studies have fully covered the lithology, structure, and distribution of the reservoirs high in CO2content, but few are reported about migration and accumulation of CO2. Using the East Changde Gas Field as an example, we studied the accumulation mechanisms of CO2 gas. Two original types of accumulation model are proposed in this study. The fault-controlled accumulation model refers to gas accumulation in the reservoir body that is cut by a basement fault(the West Xu Fault), allowing the hydrocarbon gas generated in the lower formation to migrate into the reservoir body through the fault, which results in a relatively lower CO2content. The volcanic conduit-controlled accumulation model refers to a reservoir body that is not cut by the basement fault, which prevents the hydrocarbon gas from being mixed in and leads to higher CO2contents. This conclusion provides useful theories for prediction of CO2distribution in similar basins and reservoirs.

关键词： Carbon dioxide reservoir Mantle-derived CO2 Faults Reservoir formation mechanism East Changde Gas Field Songliao Basin

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Importance of conformance control in reinforcing synergy of CO_(2) EOR and sequestration

引用

Petroleum Science 2022年第6期19卷 3088-3106页

作者： Yang Zhao zhen-hua rui zheng Zhang Si-Wei Chen Ren-Feng Yang Kai Du Birol Dindoruk Tao Yang Erling H.Stenby Malcolm A.Wilson State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing 102249China College of Petroleum Engineering China University of Petroleum(Beijing)Beijing 102249China College of Carbon Neutrality Future Technology China University of Petroleum(Beijing)Beijing 102249China College of Petroleum China University of Petroleum(Beijing)at KaramayKaramayXinjiang 83400China CNOOC Research Institute Co. Ltd.Beijing 100029China University of Houston USA Equinor Ovre StokkaveiStavangerNorway Technical University of Denmark Denmark University of Regina Canada

Injecting CO2into hydrocarbon reservoirs can enhance the recovery of hydrocarbon resources,and simultaneously,CO2can be stored in the rese rvoirs,reducing considerable amount of carbon emissions in the ***,injected CO_(2)tends to go through fractures,high-permeability channels and streaks present in reservoirs,resulting in inefficient hydrocarbon recovery coupled with low CO_(2)storage *** treatments with CO_(2)-resistant crosslinked polymer gels were performed in this study to mitigate the CO_(2)channeling issue and promote the synergy between enhanced oil recovery(EOR) and subsurface sequestration of CO_(2).Based on a typical low-permeability CO_(2)-flooding reservoir in China,studies were performed to investigate the EOR and CO_(2)storage performance with and without conformance *** effect of permeability contrast between the channels and rese rvoir matrices,treatment size,and plugging strength on the efficiency of oil recovery and CO_(2)storage was systematically *** results indicated that after conformance treatments,the CO_(2)channeling problem was mitigated during CO_(2)flooding and *** injected CO_(2)was more effectively utilized to recover the hydrocarbons,and entered wider spectrum of pore ***,more CO_(2)was trapped *** factors on the synergy of EOR and CO_(2)storage were figured *** with the treatment size,the CO_(2)storage efficiency was more sensitive to the plugging strength of the conformance treatment *** observation was important for conformance treatment design in CCUS-EOR *** to this study,the materials should reduce the channel permeability to make the channel/matrix permeability ratio below *** results demonstrate the importance of conformance treatment in maximizing the performance of CCUS-EOR process to achieve both oil recovery improvement and efficient carbon *** study provides guidelines for suc

关键词： Enhanced oil recovery(EOR) CO_(2)geological sequestration Conformance control Gel treatment CCUS Low-permeability reservoir

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Local magnetic moment oscillation around an Anderson impurity on graphene

引用

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 192-201页

作者： Shuai Li zhen Ma Jin-hua Gao School of Science Hebei University of Science and Technology School of Electronics and Information Zhengzhou University of Light Industry School of Physics and Wuhan National High Magnetic Field Center Huazhong University of Science and Technology

We theoretically investigate the spin resolved Friedel oscillation （FO） and quasiparticle interference （QPI） in graphene induced by an Anderson *** the impurity becomes magnetic,the resulted FO becomes spin dependent,which gives rise to a local magnetic moment oscillation with an envelop decaying as r-2in real space in the doping ***,at half filling,the electron density and local magnetic moment will not oscillate but decay as *** spin resolved FO has both sublattice and spin ***,the local magnetic moment decay at half filling only occurs at one sublattice of graphene,which is quite like the phenomenon observed in the STM experiment (***ález-Herrero et al.,Science 352,437 （2016）).We further give an analytic formula about such spin dependent FO based on the stationary phase ***,we study the interference of quasiparticles around the magnetic impurity by calculating the spin dependent Fourier-transformed local density of states （FT-LDOS）.Our work gives a comprehensive understanding about the local magnetic moment oscillation around an Anderson impurity on graphene.

关键词： Friedel oscillation local magnetic moment graphene Anderson impurity

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Pathogenesis, diagnosis, and treatment of epilepsy: electromagnetic stimulation-mediated neuromodulation therapy and new technologies

引用

Neural Regeneration Research 2025年第4期20卷 917-935页

作者： Dian Jiao Lai Xu zhen Gu hua Yan Dingding Shen Xiaosong Gu Academy of Medical Engineering and Translational Medicine Tianjin UniversityTianjinChina Key Laboratory of Advanced Drug Delivery Systems of Zhejiang Province College of Pharmaceutical SciencesZhejiang UniversityHangzhouZhejiang ProvinceChina Affiliated Hospital of Nantong University NantongJiangsu ProvinceChina

Epilepsy is a severe,relapsing,and multifactorial neurological *** regarding the accurate diagnosis,prognosis,and in-depth pathogenesis are crucial for the precise and effective treatment of *** pathogenesis of epilepsy is complex and involves alterations in variables such as gene expression,protein expression,ion channel activity,energy metabolites,and gut microbiota *** results are lacking for conventional treatments for *** resection of lesions,drug therapy,and non-drug interventions are mainly used in clinical practice to treat pain associated with ***-pharmacological treatments,such as a ketogenic diet,gene therapy for nerve regeneration,and neural regulation,are currently areas of research *** review provides a comprehensive overview of the pathogenesis,diagnostic methods,and treatments of *** also elaborates on the theoretical basis,treatment modes,and effects of invasive nerve stimulation in neurotherapy,including percutaneous vagus nerve stimulation,deep brain electrical stimulation,repetitive nerve electrical stimulation,in addition to non-invasive transcranial magnetic stimulation and transcranial direct current *** studies have shown that electromagnetic stimulation-mediated neuromodulation therapy can markedly improve neurological function and reduce the frequency of epileptic ***,many new technologies for the diagnosis and treatment of epilepsy are being ***,current research is mainly focused on analyzing patients’clinical manifestations and exploring relevant diagnostic and treatment methods to study the pathogenesis at a molecular level,which has led to a lack of consensus regarding the mechanisms related to the disease.

关键词： diagnosis drug treatment electroencephalography epilepsy monitoring epilepsy nerve regeneration neurostimulation non-drug interventions pathogenesis prediction

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

慢性肾衰竭维持性血液透析患者泌尿系统感染病原学及危险因素

引用

中华医院感染学杂志 2023年第17期33卷 2595-2599页

作者：沈晶尚瑞瑞薛光辉甄瑞花刘振华濮阳医学高等专科学校护理系河南濮阳457000 河南中医药大学第一附属医院肾内科河南郑州450099 濮阳医学高等专科学校基础医学部河南濮阳457000

目的探讨慢性肾衰竭维持性血液透析(MHD)患者泌尿系统感染病原学及危险因素.方法选取2021年1月-2022年1月河南中医药大学第一附属医院收治的2097例慢性肾衰竭MHD患者作为研究对象,分析泌尿系统感染病原学特点,采用多因素Logistic回归分... 详细信息

目的探讨慢性肾衰竭维持性血液透析(MHD)患者泌尿系统感染病原学及危险因素.方法选取2021年1月-2022年1月河南中医药大学第一附属医院收治的2097例慢性肾衰竭MHD患者作为研究对象,分析泌尿系统感染病原学特点,采用多因素Logistic回归分析慢性肾衰竭MHD患者泌尿系统感染的危险因素.结果2097例慢性肾衰竭MHD患者中,306例发生泌尿系统感染,感染率为14.59%;共分离出病原菌384株,其中革兰阳性菌140株(36.46%)、革兰阴性菌227株(59.11%)、真菌17株(4.43%);药敏试验结果显示,主要革兰阳性菌对青霉素、红霉素、环丙沙星、左氧氟沙星的耐药率均超过50%,对万古霉素、替考拉宁较敏感;主要革兰阴性菌对氨苄西林、哌拉西林、阿莫西林、磺胺甲噁唑/甲氧苄啶的耐药率均超过50%,对替加环素、亚胺培南、美罗培南较敏感;多因素Logistic分析结果,年龄>60岁、糖尿病肾病、高血压肾病、慢性肾盂肾炎、血清白蛋白≤35 g/L、透析时间>1年、泌尿道插管均为慢性肾衰竭MHD患者泌尿系统感染的独立危险因素.结论年龄>60岁、糖尿病肾病、高血压肾病、慢性肾盂肾炎、血清白蛋白≤35 g/L、透析时间>1年、泌尿道插管均为慢性肾衰竭MHD患者泌尿系统感染的高危因素,临床可基于高危因素进行风险分层,有助于早期识别感染和采取相应治疗措施.

关键词：慢性肾衰竭维持性血液透析泌尿系统感染病原学危险因素耐药性

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

基于微流控混合器的连续流动态同步辐射圆二色谱发展

引用

光谱学与光谱分析 2017年第7期37卷 2110-2114页

作者：汪皓黄艳刘志桐高振华孙大睿陶冶安徽大学物理与材料科学学院材料科学与工程安徽合肥230601 中国科学院高能物理研究所北京同步辐射装置北京100049

基于微流控混合器,采用连续流探测方法,在北京同步辐射装置真空紫外光谱实验站发展了毫秒动态圆二色谱探测方法。石英微流控混合器采用深度离子刻蚀技术加工,通道深度44.5μm。混合器采用蛇形通道实现溶液的快速混合。通过荧光倒置显微... 详细信息

基于微流控混合器,采用连续流探测方法,在北京同步辐射装置真空紫外光谱实验站发展了毫秒动态圆二色谱探测方法。石英微流控混合器采用深度离子刻蚀技术加工,通道深度44.5μm。混合器采用蛇形通道实现溶液的快速混合。通过荧光倒置显微镜,在模拟真实实验条件的高粘度溶液中,观察蛇形通道内溶液混合的荧光图像,进行混合效率测试。500μL·min^(-1)流量下,目前可实现4.5~270μs的时间尺度探测。利用微流控混合器进行动态探测,同步辐射紫外光必须聚焦,但由于聚焦透镜波长色散引起的焦点位移,导致圆二色谱发生畸变。通过精确测试不同波长对应焦点的相对位置,然后在圆二色谱扫描中实现波长和焦点位置精确的反馈控制,获得准确的圆二色谱。利用所发展的方法,测试了去折叠状态下的细胞色素c恢复折叠的动态同步辐射圆二色谱,在4.5μs处折叠恢复54%。这种方法将为生物大分子折叠动力学研究提供新的探测手段。

关键词：微流控混合器连续流同步辐射圆二色谱蛋白质折叠

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

凤县花椒年周期管理工作要点

引用

陕西林业科技 2013年第4期37卷 103-105页

作者：郑瑞华陕西省凤县林业局陕西宝鸡721703

根据凤县的气候特点和花椒的生长特性,从花椒一年生长周期内的整形修剪、施肥除草管理、病虫害防治及冻害防御几个方面,提出了各生长时期的管理工作要点。

关键词：花椒年生长周期管理工作要点

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Microstructural evolution and mechanical properties of aging high nitrogen austenitic stainless steels

引用

International Journal of Minerals,Metallurgy and Materials 2010年第6期17卷 729-736页

作者： Zhou-hua Jiang Zu-rui Zhang hua-bing Li zhen Li Qi-feng Ma School of Materials and Metallurgy Northeastern University Shenyang 110819 China

The microstructural evolution of 18Crl 8Mn2Mo0.77N high nitrogen austenitic stainless steel in aging treatment was investigated by optical microscopy （OM）, scanning electron microscopy （SEM）, and transmission electron microscopy （TEM）. The results show that hexagonal intergranular and cellular Cr2N with a=0.478 nm and c=0.444 nm and body-centered cubic intermetaUic X phase with a=0.892 nm precipitate gradually in the isothermal aging treatment. The matrix nitrogen depletion due to the intergranular Cr2N precipitation induces the decay of Vickers hardness, and the formation of cellular Cr2N and X phase causes the increase in the values. The impact toughness presents a monotonic decrease and SEM morphologies show the leading brittle intergranular fracture. The tensile strength and elongation deteriorate obviously except for the sample aged for 1 h in yield strength. Stress concentration occurs when the matrix dislocations pile up at the pre- cipitation and matrix interfaces, and the interracial dislocations may become precursors to the misfit dislocations, which can form small cleavage steps and accelerate the formation of cracks.

关键词： microstructural evolution aging mechanical properties austenitic stainless steel secondary phase

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：