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Factors influencing oil recovery by surfactant-polymer flooding in conglomerate reservoirs and its quantitative calculation method

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Petroleum Science 2022年第3期19卷 1198-1210页

作者： Feng-Qi Tan Chun-Miao Ma jian-hua qin Xian-Kun Li Wen-Tao Liu College of Earth and Planetary Sciences University of Chinese Academy of SciencesBeijing100049China Key Laboratory Computational Geodynamics Chinese Academy of SciencesBeijing100049China Xinjiang Oilfield Company PetroChinaKaramayXinjiang834000China

This study aims to clarify the factors influencing oil recovery of surfactant-polymer(SP)flooding and to establish a quantitative calculation model of oil recovery during different displacement stages from water flooding to SP *** conglomerate reservoir of the Badaowan Formation in the seventh block of the Karamay Oilfield is selected as the research object to reveal the start-up mechanism of residual oil and determine the controlling factors of oil recovery through SP flooding experiments of natural cores and microetching *** experimental results are used to identify four types of residual oil after water flooding in this conglomerate reservoir with a complex pore structure:oil droplets retained in pore throats by capillary forces,oil cluster trapped at the junction of pores and throats,oil film on the rock surface,isolated oil in dead-ends of flow *** the four types of residual oil identified,the SP solution can enhance oil recovery by enlarging the sweep volume and improving the oil displacement ***,the viscosity-increasing effect of the polymer can effectively reduce the permeability of the displacement liquid phase,change the oil-water mobility ratio,and increase the water ***,the stronger the shear drag force of the SP solution,the more the crude oil in a porous medium is ***,the surfactant can change the rock wettability and reduce the absorption capacity of residual oil by lowering interfacial *** the same time,the emulsification further increases the viscosity of the SP solution,and the residual oil is recovered effectively under the combined effect of the above two *** the four start-up mechanisms of residual oil identified after water flooding,enlarging the sweep volume and improving the oil displacement efficiency are interdependent,but their contribution to enhanced oil recovery are *** SP flooding system primarily enlarges the sweep volume by increasing viscos

关键词： Conglomerate reservoir Water flooding Surfactant-polymer flooding Residual oil type Influencing factor Enhanced oil recovery Computational model

TEMPERATURE PROGRAMMED DESORPTION AND THERMAL DECOMPOSITION OF n-BUTYLAMINE ON ZEOLITE HZSM-5

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Chinese Science Bulletin 1989年第5期34卷 384-389页

作者：朱建华须沁华 Department of Chemistry Nanking University

Ⅰ. NTRODUCTIONIn order to explain the catalytic properties of zeolite HZSM-5, it is necessary to know the nature, number and strength distribution of acid sites of zeolite, and the temperature programmed desorption (... 详细信息

关键词： zeolite HZSM-5 TPD n-butylamine.

Extracorporeal Membrane Oxygenation-Assisted Percutaneous Coronary Intervention in Extremely High-Risk Patients

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Chinese Medical Journal 2018年第13期131卷 1625-1627页

作者： Wen-jian Shi Yu-Xuan Zhang Gui-Ping Xu qing-Jun Ma jian-hua qin Xin-hua Wu Li Wang Department of Anesthesia People's Hospital of Xinjiang Uygur Autonomous Region Urumqi Xinjiang 830001 China

To the Editor： High-risk percutaneous coronary intervention （PCI） remains a viable revascularization strategy for patients who refuse or are not suitable for surgery, Extracorporeal membrane oxygenation （ECMO） can direct blood flow from the body, oxygenate it, and then return it, thus completely or partially replacing the function of the heart and lungs and increasing the likelihood of functional recovery. Selective PCI supported by ECMO is a viable alternative for patients who are at very high risk for coronary artery bypass gratting （CABG）. A previous study found that ECMO-assistcd PCI for patients with acute myocardial infarction complicated by profound cardiogenic shock might have improved 30-day and l-year survival rates, and we believe that ECMO is a viable mode of hemodynamic support in high-risk cases.

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基于五感的儿童活动空间植物配置研究

西南师范大学学报（自然科学版） 2017年第4期42卷 76-80页

作者：王荐秦华西南大学园艺园林学院重庆400715

为使儿童活动空间植物配置更为合理、丰富、生动、充满趣味,为儿童成长提供一个愉快、健康的氛围,从儿童视觉、听觉、嗅觉、触觉、味觉等5种感官特点入手,提出了相对应的植物优选及其组合模式,为儿童活动空间优化设计提供了参考和借鉴.

关键词：儿童活动空间五感植物配置

lncRNA SNHG4 enhanced gastric cancer progression by modulating miR-409-3p/CREB1 axis

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Oncology research 2025年第1期33卷 185-198页

作者： Zhouyang Cheng Yuchen hua Yang Cao Jun qin Department of General Surgery Affiliated Hospital of Nantong University Nantong 226001 China. Department of Surgery Affiliated Hospital of Nantong University Medical School of Nantong University Nantong 226001 China. Department of Operation Affiliated Hospital of Nantong University Nantong 226001 China.

Objective:Gastric cancer (GC) is a globally common cancer characterized by high incidence and mortality worldwide. Advances in the molecular understanding of GC provide promising targets for GC diagnosis and therapy. Long non-coding RNAs (lncRNAs) and their downstream regulators are regarded to be implicated in the progression of multiple types of malignancies. Studies have shown that the lncRNA small nucleolar RNA host gene 4 (SNHG4) serves as a tumor promoter in various malignancies, while its function in GC has yet to be characterized. Therefore, our study aimed to explore the role and underlying mechanism of SNHG4 in GC.Methods:We used qRT-PCR to analyze SNHG4 expression in GC tissues and cells. Kaplan-Meier analysis was used to assess the correlation between SNHG4 expression and the survival rate of GC patients. Cellular function experiments such as CCK-8, BrdU, colony formation, flow cytometry analysis, and transwell were performed to explore the effects of SNHG4 on GC cell proliferation, apoptosis, cell cycle, migration, and invasion. We also established xenograft mouse models to explore the effect of SNHG4 on GC tumor growth. Mechanically, dual luciferase reporter assay was used to verify the interaction between SNHG4 and miR-409-3p and between miR-409-3p and cAMP responsive element binding protein 1 (CREB1).Results:The results indicated that SNHG4 was overexpressed in GC tissues and cell lines, and was linked with poor survival rate of GC patients. SNHG4 promoted GC cell proliferation, migration, and invasion while inhibiting cell apoptosis and cell cycle arrest . The experiment indicated that SNHG4 facilitated GC tumor growth. Furthermore, SNHG4 was demonstrated to bind to miR-409-3p. Moreover, CREB1 was directly targeted by miR-409-3p. Rescue assays demonstrated that miR-409-3p deficiency reversed the suppressive impact of SNHG4 knockdown on GC cell malignancy. Additionally, miR-409-3p was also revealed to inhibit GC cell proliferation, migration, and

关键词： Gastric cancer MicroRNA-409-3p (miR-409-3p) Small nucleolar RNA host gene 4 (SNHG4) cAMP responsive element binding protein 1 (CREB1)

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产科急性心力衰竭的诊断和救治

中国实用妇科与产科杂志 2016年第12期32卷 1171-1174页

作者：林建华傅勤上海交通大学医学院附属仁济医院妇产科上海200129

产科急性心力衰竭是妊娠合并心脏病患者的严重心血管并发症。一旦发生急性心力衰竭,应在严密的血流动力学监测下积极开展各项抢救措施,包括减轻心脏前后负荷、增强心肌收缩力、去除诱发因素、治疗原发心脏病、及时终止妊娠。

关键词：妊娠期急性心力衰竭

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黄浦江过江隧道的动力抗震分析

上海交通大学学报 2001年第10期35卷 1512-1516页

作者：杨辉陆建飞王建华张庆华上海交通大学建筑工程与力学学院上海200030

借鉴日本东京湾的隧道分析方法 ,提出了适合于本课题的隧道分析的计算模型 ,即用等效质量 -弹簧系统代替地基切片 ,隧道用能承受剪力、弯矩和轴力的梁代替 .数值仿真表明 ,隧道与风井接头处的轴力、角位移、剪力较大 .如果总体设计允许... 详细信息

借鉴日本东京湾的隧道分析方法 ,提出了适合于本课题的隧道分析的计算模型 ,即用等效质量 -弹簧系统代替地基切片 ,隧道用能承受剪力、弯矩和轴力的梁代替 .数值仿真表明 ,隧道与风井接头处的轴力、角位移、剪力较大 .如果总体设计允许的话 ,建议各段隧道的长度不宜相差太大 ,以减小地震波作用下隧道接头的动力相对位移和内力 .

关键词：沉管隧道抗震设计振动分析多体系统动力学

Four Polynuclear MnⅡ Coordination Polymers Based on 5-tert-butyl Isophthalic Acid and Flexible N-donor Co-ligands:Synthesis,Structures and Magnetic Properties

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Four Polynuclear MnⅡ Coordination Polymers Based on 5-tert-...

Stable copper boron–imidazolate cage as Cu-riched enzyme for highly efficient electrocatalytic CO2 reduction to ethylene

中国化学会第28届学术年会

作者： Min-Le Han,Lu-Fang Ma *,jian-hua qin,Li-Ya Wang* College of Chemistry and Chemical Engineering,Luoyang Normal University,Luoyang,471022

Four new Mn II coordination polymers,[Mn 1.5（tbip）（Htbip）（bib）].2H2O（1）,[Mn 4（tbip） 4（bip）].2H2O（2）,[Mn2（tbip）2（bbp）（H2O）]（3）,and [Mn3（tbip）3（bix）2]（4）（H2tbip = 5-tert-butyl isophthalic acid;bib = 1,4-bis（imidazol）butane,bip = 1,3-bis（imidazol）propane,bbp = 1,3-bis（benziminazol）propane,bix = 1,4-bis（imidazol-1-ylmethyl）benzene） have been synthesized under hydrothermal conditions.1 exhibits a pcu topology containing [Mn3（COO）6] units.2 shows a 4-connected dia topology containing alternate mono/trinuclear Mn II units.3 features a 3D 8-connected net with a（36.4 16.5 6） topology showing [Mn4（COO）6（H2O）2] 2+ units.4 has a 3D 8-connected net hex topology containing [Mn3（COO） 4 ] 2+ ***,the magnetic properties of four complexes were investigated.

关键词： 5-Tert-butyl isophthalic acid Mn II coordination polymers Magnetic properties

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Science China Chemistry 2025年

作者： Jun-Qiang Chen Qiao-Hong Li qin-Long Hong Ping Shao Hai-Xia Zhang jian Zhang State Key Laboratory of Structural Chemistry Fujian Institute of Research on the Structure of Matter Chinese Academy of Sciences

Single-atom catalyst has garnered widespread attention to mimic mature enzymes due to its well-defined atomic structure and coordination environments. However, since the carbon–carbon（C–C） coupling reactions require synergistic catalysis of multiple sites, single-atom catalysts suffer from insufficient active sites and unclear reaction mechanisms. Controlling the reaction intermediates in a precisely targeted pocket through careful metal–organic cage design is therefore crucial. Here, we prepare a tetrahedral [Cu6L4]-type boron–imidazolate cage integrating highly active Cu sites and optimized cavity, which exhibits enzyme like specific catalytic performance in electrochemical CO2reduction reaction（CO2RR） to enhance the selectivity of *** analyses and computational calculations suggest that the single Cu site together with neighboring boron–imidazolate ligands provides suitably synergistic effects that enable the energetically favorable formation of an *COCHO intermediate, a key step determining selectivity. As a result, the [Cu6L4]-type cage of BIC-145 achieves a Faradaic efficiency of 28% for C2H4maintaining an average current density of -3.54 mA cm-2over a 5-hour electrolysis period. This work represents the first example for studying single-metal site catalysts with ultra-low coordination numbers through the rational design of metal–organic cages.

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