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Paleoenvironmental Characteristics of Paleogene lacustrine Source Rocks in the Western Bozhong Sag,Bohai Bay Basin,china:Evidence from Biomarkers,Major and Trace Elements

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Acta Geologica Sinica(English Edition) 2024年第1期98卷 220-240页

作者： WANG Xiang liu guangdi SONG Zezhang sun mingliang WANG Xiaolin WANG Feilong CHEN Rongtao GENG Mingyang lI Yishu state key laboratory of petroleum resources and prospecting China University of PetroleumBeijing 102249China College of Geosciences China University of PetroleumBeijing 102249China china National Offshore Oil Co. Ltd.(CNOOC)Tianjin Branch CompanyTianjin 300459China CNOOC Research Institute Beijing 100028China

The organic matter(OM)enrichment mechanisms and depositional environment characteristics of lacustrine source rocks in the western Bozhong Sag,Bohai Bay Basin in Northeast china remain *** address these issues,based on Rock-Eval pyrolysis,kerogen macerals,H/C and O/C ratios,GC-MS,major and trace elements,the Dongying Formation Member(Mbr)3(E_(3)d_(3)),the Shahejie Formation mbrs 1 and 2(E_(2)s_(1+2)),and the Shahejie Mbr 3(E_(2)s_(3))source rocks in the western Bozhong Sag were *** above methods were used to reveal their geochemical properties,OM origins and depositional environments,all of which indicate that E_(2)s_(1+2)and E_(2)s_(3)are excellent source rocks,and that E_(3)d_(3)is of the second good quality.E_(3)d_(3)source rocks were formed under a warm and humid climate,mainly belong to fluvial/delta facies,the E_(3)d_(3)sediments formed under weakly oxidizing and freshwater ***,the depositional environments of E_(2)s_(1+2)source rocks were arid and cold climate,representing saline or freshwater lacustrine facies,and the sediments of E_(2)s_(1+2)belong to anoxic or suboxic settings with large evaporation and *** the period of E_(2)s_(3),the climate became warm and humid,indicating the freshwater lacustrine facies,and E_(2)s_(3)was characterized by freshwater and abundant ***,compared with other intervals,the OM origin of E_(3)d_(3)source rocks has noticeable terrestrial *** OM origin of the E_(2)s_(1+2)and E_(2)s_(3)are mainly plankton and *** subsidence and climate change have affected the changes of the depositional environment in the western Bozhong Sag,thus controlling the distribution of the source rocks,the geochemical characteristics in the three intervals of lacustrine source rocks have distinct ***,these factors are effective to evaluate the paleoenvironmental characteristics of source rocks by biomarkers,major and trace *** established models

关键词： petroleum geology source rocks depositional environments biomarkers major elements trace elements Bozhong Sag

Dynamic Systems of petroleum Accumulation in the Nanpu Depression,Bohai Bay Basin,china

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Acta Geologica Sinica(English Edition) 2010年第5期84卷 1273-1285页

作者： liu guangdi sun mingliang ZHANG Zhihuan DONG Yuexia state key laboratory for petroleum resources and prospecting China University of Petroleum Beijing 102249 Jidong Oil Company Petrochina Tangshan Hebei Province 063004

It is significant to distinguish the dynamic systems of petroleum accumulation （DSPA） for the understanding of petroleum accumulation and distribution. According to the formation pressure framework, genetic types of petroleum and characteristics of conduit systems, three dynamic systems of petroleum accumulation were identified in the vertical profile in the Nanpu depression, Bohai Bay basin. The deeper DSPA （including formations Es3 to Es2） is a sealed system with high-overpressure and high-mature self-sourced oil. Most of the crude oil in the system accumulated in the periods of late Oligocene （23.5 Ma） and late Pliocene （2.4 Ma）. The middle DSPA （including formations Es~ to Edl） is an overpressured half-sealed system with mature or lower-mature self-sourced oil. The accumulation of oil in the system also occurred in the late Oligocene （23.5 Ma） and late Pliocene （2.4 Ma）. The shallower DSPA （including formations Ed2 to Q） is a hydrostatic system with lower-mature aliensourced oil from the middle system. Oil within this system accumulated only in the late Pliocene period. The oil in the shallower system migrated vertically along the faults from the formerly accumulated oil in the middle system by lateral migration along the sandbodies, whereas petroleum accumulation in the deeper system was mainly derived from the system itself by lateral migration along the sandbodies and rarely migrated out of the system. In this case, it seems that the deeper system is a more potential exploration prospect in addition to the other two proved favorable systems.

关键词： dynamic system of petroleum accumulation genetic types of petroleum pressureframework accumulation process Nanpu depression

Characteristics and accumulation mechanism of tight sandstone gas reservoirs in the Upper Paleozoic, northern Ordos Basin, china

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petroleum Science 2013年第4期10卷 442-449页

作者： liu guangdi sun mingliang Zhao Zhongying Wang Xiaobo Wu Shenghe state key laboratory of petroleum resource and prospecting China University of Petroleum Research Institute of petroleum Exploration & Development PetroChina

The Ordos Basin is a significant petroliferous basin in the central part of *** Carboniferous and Permian deposits of transitional and continental facies are the main gas-bearing layers in the north part of the *** Carboniferous and Permian natural gas reservoirs in the northern Ordos Basin are mainly tight sandstone reservoirs with low porosity and low permeability,developing lots of ＂sweet spots＂ with comparatively high porosity and *** tight sandstones in the study area are gas-bearing,and the sweet spots are rich in *** spots and tight sandstones are connected rather than being separated by an interface *** spot sand bodies are vertically and horizontally overlapped,forming a large gas reservoir *** fact,a reservoir formed by a single sweet spot sand body is an open gas *** the gentle dipping geological setting and with the source rocks directly beneath the tight reservoirs over a large area,the balance between gas charging into tight reservoirs from source rocks and gas loss from tight reservoirs through caprock is the key of gas accumulation in tight *** the non-Darcy flow charging driven by source-reservoir excess pressure difference and the diffusion flow charging driven by source-reservoir gas concentration difference play an important role in gas *** results of mathematical modeling indicate that the gas accumulation cannot be formed by just one of the above *** diffusion of gas from source rocks to reservoirs is a significant mechanism of tight sandstone gas accumulation.

关键词： Tight sandstone gas accumulation gas diffusion Upper Paleozoic Ordos Basin

Pyrolysis-free formamide-derived N-doped carbon supporting atomically dispersed cobalt as high-performance bifunctional oxygen electrocatalyst

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Journal of Energy Chemistry 2020年第10期29卷 283-290页

作者： Yin Jia Yiyan Wang Guoxin Zhang Cong Zhang Kai sun Xuya Xiong Junfeng liu Xiaoming sun state key laboratory of Chemical resource Engineering College of ScienceBeijing University of Chemical TechnologyBeijing 100029China College of Electrical Engineering and Automation Shandong University of Science and TechnologyQingdao 266590ShandongChina state key laboratory of Heavy Oil Processing China University of Petroleum(East China)Qingdao 266580ShandongChina

Non-precious metal-nitrogen-carbon(MNC)electrocatalysts have gained tremendous attention as promising electrocatalysts for oxygen reduction reaction(ORR)and oxygen evolution reaction(OER).However,the most applicable strategies for the synthesis of MNC materials heavily rely on pyrolysis treatment,which may easily lead to metal aggregation and subsequent degradation of catalytic ***,we developed a pyrolysis-free strategy for preparing MNC materials,which was demonstrated by achieving ultrathin cobalt-nitrogen-carbon(Co NC)layer with dense atomically dispersed cobalt sites depositing on graphene oxide(GO)via simple treatment of Co salt and GO in *** formamide-derived Co NC layer deposited on GO(termed as f-Co NC/GO)could be controlled in 1-2 nm ***,the f-CoNC/GO composite without pyrolysis exhibited excellent bifunctional performance toward ORR and OER,which was attributed to the dense atomically dispersed Co-Nxsites and improved conductivity by GO ***,the f-CoNC/GO-assembled rechargeable Zn-air battery showed highly efficient and stable performance,demonstrating our pyrolysis-free method to be straightforward,cost-effective,and feasible for the scalable production of MNC electrocatalysts.

关键词： Pyrolysis-free Formamide Non-precious metal Electrocatalysts Zn-air battery

FexC enhancing the catalytic activity of FeNx in oxidative dehydration of N-heterocycles

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Green Chemical Engineering 2022年第4期3卷 349-358页

作者： Siyuan sun Zhihui liu Fan Yang Tian Qiu Minjian Wang Andong Feng Ying Wang Yongfeng li state key laboratory of Heavy Oil Processing China University of Petroleum(Beijing)Beijing102249China state key laboratory of Rare Earth resource Utilization Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun130022China

To enhance the catalytic activity by designing metal particles combined with atomically dispersed non-noble metal catalyst is a huge challenge,which yet has not been studied widely in organic ***,we describe a simple and efficient method to synthesize FexC combined with Fe single atoms anchored on the Ndoped porous carbon by regulating pyrolysis ***-corrected high-angle annular dark-field scanning transmission electron microscopy(HAADF-STEM)and extended X-ray absorption fine structure(EXAFS)spectroscopy corroborate the existence of atomically dispersed Fe and the coordination number between Fe and N *** Fe-N-C-800 catalyst exhibits the highest catalytic activity giving the 97%yield of quinoline in dehydration of 1,2,3,4-tetrahydroquinoline(THQ)reaction at a mild condition(60C,O_(2)balloon),and it shows good stability with 80%isolated yield after five consecutive dehydration ***,density functional theory(DFT)calculations reveal that coexistence of Fe_(x)C and FeN_(x)structure exhibits high activity owing to the lowest adsorption energy of co-adsorbed O_(2)and THQ and the longest N-H bond length of THQ,that is because the existence of FexC induces the charges *** work may open a new route to design metal particles combined with atomically dispersed non-noble metal catalysts with high activity in organic synthesis.

关键词： FexC Fe single atoms Oxidative dehydration reaction 1,2,3,4-Tetrahydroquinolines Quinoline

The effect of thermal fluid derived from mud diapir on sandstone reservoirs in the Yinggehai Basin, South china Sea

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Energy Geoscience 2022年第4期3卷 473-484页

作者： Xiaowei lv Meiyan Fu Shaonan Zhang Yi liu Xiaoqi Ding Xianghao Meng Shuai Yin Tengjiao sun state key laboratory of Oil and Gas Geology and Exploitation Chengdu610059China College of Energy resource Chengdu University of TechnologyChengdu610059China Research Institute of SINOPEC Henan Oilfield Company Zhengzhou450018China College of Geosciences and Technology Southwest Petroleum UniversityChengdu610500China Research Institute of CNOOC Zhanjiang Branch Company Zhanjiang524059China School of Earth Sciences and Engineering of Xian Shiyou university Xian710065China

The underground thermal fluid is one of the significant factors controlling the formation and quality of *** Huangliu Formation(N_(1)h)in YF1 area of the central depression belt in the Yinggehai Basin,South china Sea,is characterized by intense thermal fluid activities related to mud diapir and large-scale shallow-water gravity flow *** multi-episodic invasion of high-temperature and CO_(2)-rich thermal fluid into the formation induces complex water-rock reaction during diagenetic pro-cess,providing a preferable investigation opportunity for revealing how thermal fluid affects reservoir *** study characterizes the reservoirs in the formation through core and thin section analyses as well as physical property *** reservoirs are dominated by fine-grained sandstone characterized by medium porosity(15.2-21.3%)and lower permeability(0.56-15.75mD).Based on an analysis of casting thin section,cathode luminescence(Cl),scanning electron microscope(SEM),carbon and oxygen isotope,inclusion test,and electron-probe microanalysis(EPMA),we systematically investigate the diagenetic patterns and pore evolution process for the reservoirs in the *** episodic invasion of thermal fluid occurred approximately 0.4 Ma ago plays an important role in controlling reservoir development:The CO_(2)-rich formation water induces massive late-stage dissolution,resulting in a higher proportion of dissolved pores(38.7-46.4%),which improves the porosity of reservoirs at a depth of 2600-3100 ***,the late dissolution together with carbonate cementation occurred in closed diagenetic system blocks most seepage ***,the relatively high level clay mineral transformation in the YF1 area leads to a higher content of authigenic illite(44-62%)in the *** authigenic illite severely blocks the pore throats in fine sandstone,reducing *** study offers an insight to the understanding of mud diapir-derived thermal fluid

关键词： Thermal fluid Sandstone diagenesis CO_(2)dissolution low permeability Huangliu Formation

基于氮气吸附实验与分形FHH模型分析页岩孔隙结构特征——以鄂尔多斯盆地华池地区长7段为例

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石油实验地质 2023年第3期45卷 576-586页

作者：安成柳广弟孙明亮游富粮王子昕曹玉顺中国石油大学(北京)地球科学学院北京102249 油气资源与探测国家重点实验室北京102249

孔隙结构是页岩储层研究的重点,对页岩油的赋存具有重要影响。选取鄂尔多斯盆地华池地区延长组7段的10块泥页岩岩心样品,通过扫描电镜观察及低温氮气吸附实验,结合分形FHH模型,计算分形维数,对研究区泥页岩的孔隙结构进行定量化表征,并... 详细信息

孔隙结构是页岩储层研究的重点,对页岩油的赋存具有重要影响。选取鄂尔多斯盆地华池地区延长组7段的10块泥页岩岩心样品,通过扫描电镜观察及低温氮气吸附实验,结合分形FHH模型,计算分形维数,对研究区泥页岩的孔隙结构进行定量化表征,并在此基础上探讨分形维数与孔隙结构参数、含油性参数的关系,确定长7段泥页岩孔隙发育的主要影响因素。华池地区长7段泥页岩有机质丰度高,属于好—极好烃源岩,含油性与可动性较好,多达到中含油级别,主要由石英与黏土矿物组成;储集空间以粒间孔、粒内孔及少量有机质孔为主,孔隙形态有两类,分别为平行板状狭缝形+单边狭缝形及墨水瓶形+平行板状狭缝形,孔径以微孔和中孔为主,宏孔发育较少。多数样品具有分形特征,表征小孔隙的分形维数D_(1)介于2.264 7~2.714 9之间,表征大孔隙的分形维数D_(2)介于2.373 3~2.777之间。其中,D_(2)同比表面积、孔体积、平均孔径及S_(1)的相关性较好,可以表征孔隙结构发育特征和页岩的含油性;而D_(1)仅可表征页岩油的可动性。泥页岩的孔隙发育主要受控于有机碳及石英含量,与长石含量有一定的关系,黏土矿物含量不是主要的影响因素。

关键词：分形FHH模型孔隙结构氮气吸附实验长7段延长组三叠系鄂尔多斯盆地

鄂尔多斯盆地延长组长7段页岩油形成富集机理

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石油与天然气地质 2020年第4期41卷 719-729页

作者：李士祥牛小兵柳广弟李继宏孙明亮游富粮何昊楠中国石油长庆油田分公司勘探开发研究院陕西西安710018 低渗透油气田勘探开发国家工程实验室陕西西安710018 中国石油长庆油田分公司第八采油厂陕西西安710000 中国石油大学(华东) 山东青岛266580 中国石油大学(北京)地球科学学院北京102249 油气资源与探测国家重点实验室北京102249 中国石油大学(北京)克拉玛依校区新疆克拉玛依834000

页岩油是亟待开发利用的一种非常规油气资源。利用岩石地球化学和烃源岩地球化学的方法对鄂尔多斯盆地延长组长7段页岩油形成的基本条件和富集机制进行了系统分析。长7段沉积了平均残余有机碳丰度达7.4%的特高丰度富有机质泥页岩,该套... 详细信息

页岩油是亟待开发利用的一种非常规油气资源。利用岩石地球化学和烃源岩地球化学的方法对鄂尔多斯盆地延长组长7段页岩油形成的基本条件和富集机制进行了系统分析。长7段沉积了平均残余有机碳丰度达7.4%的特高丰度富有机质泥页岩,该套泥页岩中发育丰富的微纳米孔隙,为页岩油的富集创造了良好的条件。长7段页岩油富集的主要机制包括:①高有机物生产力和强还原水体令长7段沉积期的超富营养化湖盆中的有机质得以有效保存,形成高有机质丰度的泥页岩,为页岩油形成提供了物质基础;②长7段富有机质泥页岩生油能力强、转化效率高、排油强度大,为页岩油的规模形成提供了良好条件;③有机质吸附与孔隙容留双机制的页岩油赋存方式,为页岩油的富集提供了多种方式。

关键词：富有机质页岩富集机理页岩油延长组长7段鄂尔多斯盆地

鄂尔多斯盆地三叠系延长组7段高伽马砂岩测井识别及其展布特征

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石油实验地质 2023年第1期45卷 99-108页

作者：游富粮柳广弟孙明亮李超正刘祥柏安成王子昕李亿殊中国石油大学(北京)地球科学学院北京102249 油气资源与探测国家重点实验室北京102249 中国石油勘探开发研究院北京100083

鄂尔多斯盆地三叠系延长组长7段泥页岩层系内发育大量的砂岩夹层,这些砂岩夹层常伴有自然伽马值异常高的现象,部分砂岩的自然伽马值可高达330.5 API,在测井剖面上极易与泥页岩混淆。为识别高伽马砂岩,按照粒度和结构特征将该区延长组长... 详细信息

鄂尔多斯盆地三叠系延长组长7段泥页岩层系内发育大量的砂岩夹层,这些砂岩夹层常伴有自然伽马值异常高的现象,部分砂岩的自然伽马值可高达330.5 API,在测井剖面上极易与泥页岩混淆。为识别高伽马砂岩,按照粒度和结构特征将该区延长组长7段碎屑岩划分为细砂岩、粉砂岩、泥质粉砂岩、粉砂质泥岩、泥岩和页岩,并应用常规测井数据运算组合成2个新参数——参数A和参数B,参数A和参数B组成的交汇图版以及自然伽马测井曲线,可有效区分识别出长7段中的正常砂岩和高伽马砂岩。长7段高伽马砂岩的累计厚度平面展布图表明,高伽马砂岩主要位于研究区的西南部;高伽马砂岩由湖盆边缘向湖盆中心呈指状发散展布的特征指示,其形成可能与长7段沉积期间的火山喷发有关。

关键词：高伽马砂岩岩性识别长7段延长组三叠系鄂尔多斯盆地