检索结果-南通市图书馆

Journal of Earth Science 2022年第4期33卷 963-976页

作者： Dawei Cheng Chuanmin Zhou Zhijie Zhang xuanjun yuan Yinhe Liu Xingyu Chen Research Institute of Petroleum Exploration and Development PetroChinaBeijing 100083China School of Earth and Space Sciences Peking UniversityBeijing 100871China

The Middle Permian Lucaogou Formation is the source rock and the main oil shale producing formation in the southeastern Junggar Basin.This study focused on the Lucaogou Formation exposed in two outcrop sections on the northern flank of the Bogda Mountain,namely the Jingjingzigou and Dalongkou sections.Here,we present integrated analysis of the sedimentology,major and trace elements,mineral components and total organic carbon contents.The paleo-environment was reconstructed including provenance,redox conditions,paleo-salinity,chemical weathering intensity and primary organic matter productivity.The results showed that the upper and lower units were deposited in distinct depositional environments with different organic matter accumulation mechanisms.The lower unit was characterized by low lake level,dry climate,fresh-brackish and well-oxygenated water.While during the deposition of the upper unit the lake level rose,climate turned wetter and the bottom water became less oxidized and much saltier.The mechanism of the organic matter accumulation is different for these two units.The preserved organic matters were mainly controlled by the primary productivity in the lower unit and by the redox conditions in the upper unit.

关键词： trace element redox condition paleosalinity primary productivity chemical weathering

Conglomerate Reservoir Pore Evolution Characteristics and Favorable Area Prediction: A Case Study of the Lower Triassic Baikouquan Formation in the Northwest Margin of the Junggar Basin, China

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Journal of Earth Science 2021年第4期32卷 998-1010页

作者： Meng Xiao Songtao Wu xuanjun yuan Zongrui Xie Petroleum Exploration&Production Research Institute SINOPECBeijing 100083China Research Institute of Petroleum Exploration and Development CNPCBeijing 100083China Key Laboratory of Oil and Gas Reservoirs CNPCBeijing 100083China National Energy Tight Oil and Gas R&D Center Beijing 100083China Research Institute of Exploration and Development Xinjiang Oilfield CompanyPetroChinaKaramay 834000China

This study examines the characteristics and pore evolution of the Baikouquan conglomerate reservoir in the Mahu sag of the Junggar Basin from original sedimentation and diagenesis.Analysis is based on core observation,thin section,X-ray diffraction,cathodoluminescence and image analysis,and combined with physical property and well log data.The results show that conglomerate reservoir in the Baikouquan Formation can be divided into three lithofacies types:TypeⅠis argillaceous filling conglomerate facies,in which cementation and dissolution are not developed,and the interstitial material is mainly argillaceous;TypeⅡis tuffaceous filling in fine conglomerate facies,in which volcanic rock debris,illite and dissolution are developed;TypeⅢis sandstone filling conglomerate facies,in which cementation and dissolution are developed.The reservoir undergoes complex diagenesis,and the diagenetic sequence is:compaction→early chlorite film→early calcite cementation→detritus,feldspar and tuffaceous dissolution→quartz secondary enlargement→late calcite cementation→oil invasion→forming illite.Quantitative study of pore evolution shows that dissolution and calcite cementation are relatively developed in lithofacies Type III,and that compaction has a great influence on lithofacies TypeⅠand II.According to comprehensive evaluation of lithofacies,diagenesis and pore structure characteristics,the reservoir space type is mainly the dissolution pore.It is mainly primarily mainly composed of lithofacies Type III,thickness of the gravel body is more than 25 m,porosity is generally more than 12%,which represents favorable conditions for the distribution of favorable reservoir.

关键词： conglomerate reservoir lithofacies pore evolution favorable reservoir Junggar Basin

Rock Types and Reservoir Characteristics of Shahejie Formation Marl in Shulu Sag, Jizhong Depression, Bohai Bay Basin

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Journal of Earth Science 2021年第4期32卷 986-997页

作者： Jingwei Cui xuanjun yuan Songtao Wu Ruifeng Zhang Song Jin Yang Li Research Institute of Petroleum Exploration and Development CNPCBeijing 100083China Key Laboratory of Oil and Gas Reservoirs CNPCBeijing 100083China National Energy Tight Oil and Gas R&D Center Beijing 100083China Exploration Department of PetroChina Huabei Company Renqiu 062552China Hebei Institute of Geological Survey Shijiazhuang 050081China

Due to the complicated lithology in the ES3 Member of the Shahejie Formation in the Shulu sag,Jizhong depression,it is difficult to classify the rock types and characterize the reservoirs at the marl intervals.In this paper,a four-element classification method has been proposed,and seven rock types have been identified by analyzing the mineral composition.The primary rock types are medium-high organic carbonate rocks and medium-high organic shaly-siliceous carbonate rocks.With the methods of field emission scanning electron microscopy,high-pressure mercury intrusion,nitrogen adsorption,and nano-CT,four types of reservoir spaces have been identified,including intra-granular pores,intergranular pores(inter-crystalline pores),organic pores,and micro-fractures.By combining the method of high-pressure mercury intrusion with the method of the nitrogen adsorption,the porosity of the marl has been measured,ranging from 0.73%to 5.39%.The distribution of the pore sizes is bimodal,and the pore types are dominated by micron pores.Through this study,it has been concluded that the sag area to the east of Well ST1H is the favorable area for the development of self-sourced and self-reservoired shale oil.According to the results of geochemical and reservoir analysis,the III Oil Group may have sweet spot layers.

关键词： marl shale oil play rock types tight reservoir Bohai Bay Basin

Theory, Technology and Practice of Unconventional Petroleum Geology

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Journal of Earth Science 2023年第4期34卷 951-965页

作者： Caineng Zou Zhi Yang Guosheng Zhang Rukai Zhu Shizhen Tao xuanjun yuan Lianhua Hou Dazhong Dong Qiulin Guo Yan Song Qiquan Ran Zhen Qiu Songtao Wu Feng Ma Bin Bai Lan Wang Bo Xiong Songqi Pan Hanlin Liu Xiaoni Wang PetroChina Research Institute of Petroleum Exploration&Development Beijing 10083China

0 INTRODUCTION The breakthroughs in unconventional petroleum have a great impact on world petroleum industry and innovation in petroleum geology(Dou et al,2022;Jia,2017;Zou et al.,2015b,2014a;Yerkin,2012;Pollastro,2007;Schmoker,1995).The exploration and development evolution from conventional petroleum to unconventional petroleum and more and more frequent industrial activities of exploring petroleum inside sources kitchen have deepened theoretical understanding of unconventional petroleum geology and promoted technical research and development(Jia et al.,2021,2017;Jin et al.,2021;Zhao W Z et al.,2020;Ma Y S et al.,2018,2012;Zou et al.,2018b,2016,2009;Dai et al.,2012).We have introduced and extended the theory of continuous hydrocarbon accumulation since 2008 and published several papers/books(in Chinese and English)with respect to unconventional petroleum geology since 2009,basically forming the theoretical framework for this discipline(Yang et al.,2022a,2021a,2019a,,2015a;Zou et al.,2019c,2017b,2014a,,2013a).In this paper,we present the background of unconventional petroleum geology,review the latest theoretical and technological progress in unconventional petroleum geology,introduce relevant thinking and practices in China,and explore the pathway of unconventional petroleum revolution and multi-energy coordinated development in super energy basins,hopefully to promote the unconventional petroleum geology and industry development.

关键词： unconventional petroleum geology conventional-unconventional petroleum geology source rock oil and gas oil and gas in source rock stratum fine-grained sediment microscale to nanoscale pore throat continuous hydrocarbon accumulation artificial hydrocarbon reservoir exploring petroleum inside source kitchen shale revolution coal rock revolution chemical transformation within source super energy basin.

Fluid Mobility Evaluation of Tight Sandstones in Chang 7 Member of Yanchang Formation, Ordos Basin

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Journal of Earth Science 2021年第4期32卷 850-862页

作者： Songtao Wu Shixiang Li xuanjun yuan Zhi Yang Aifen Li Jingwei Cui Songqi Pan Zhiguo Mao Ling Su You Zhou Research Institute of Petroleum Exploration and Development CNPCBeijing 100083China Key Laboratory of Oil and Gas Reservoirs CNPCBeijing 100083China National Energy Tight Oil and Gas R&D Center Beijing 100083China Changqing Oilfield Company PetroChinaXi’an 710000China China University of Petroleum Qingdao 266510China School of Civil Engineering Hebei University of EngineeringHandan 056000China

Fluid mobility has been important topic for unconventional reservoir evaluation.The tight sandstones in Chang 7 Member of the Ordos Basin has been selected to investigate the fluid mobility based on the application of core flooding-NMR combined method and core centrifugation-NMR combined method,and the porous structure is studied using optical microscope,field emission scanning electron microscope(FE-SEM),CT and mercury injection.Our results include:(i)Feldsparrock fragments dissolution pores,calcite dissolution pores,clay mineral dissolution pores,intergranular dissolution expansion pores,inter-granular pores,intra-kaolinite pores,and intra-illite/smectite mixed layer pores are developed in Chang 7 tight sandstones;3D CT pore structure shows that the pore connectivity is positively related to physical properties,and the overall storage space is connected by the throat with diameter between 0.2 and 0.3μm.The percentage of storage space connected by throats with diameter less than 100 nm can reach more than 35%.(ii)Movable fluid saturation of Chang 7 tight sandstones is between 10%and 70%,and movable oil saturation is between 10%and 50%.Movable fluid saturation may cause misunderstanding when used to evaluate fluid mobility,so it is recommended to use movable fluid porosity in the evaluation of fluid mobility.The porosity ranging from 5%to 8%is the inflection point of the fluidity and pore structure.For samples with porosity less than 8%,the movable fluid porosity is generally less than 5%.Moreover,the movable fluid is mainly concentrated in the storage space with a throat diameter of 0.1 to 1μm.For samples with porosity greater than 8%,the porosity of the movable fluid is more than 5%,and the movable fluid is mainly concentrated in the storage space with a throat diameter of 0.2 to 2μm.(iii)The movable fluid saturation measured by core flooding-NMR combined method is generally higher than that measured by core centrifugation-NMR combined method.The former can evaluate the mobility of the oil-water two-phase fluid

关键词： tight oil shale oil unconventional petroleum accumulation nano-pores movable oil

基于神经电生理探讨重复外周磁刺激治疗腰椎间盘突出症

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实用医学杂志 2024年第12期40卷 1665-1670页

作者：袁佳冯文锋豆运香陈璇君张志鸿广东省中西医结合医院广东佛山528200

目的探究重复外周磁刺激(rPMS)在腰椎间盘突出症(LDH)患者中的疗效。方法2023年3-9月期间在康复科住院部或门诊招募LDH患者60例。所有患者随机分配到rPMS组或常规组,每组各30例。两组患者均接受常规物理治疗和药物治疗,rPMS组在此基础... 详细信息

目的探究重复外周磁刺激(rPMS)在腰椎间盘突出症(LDH)患者中的疗效。方法2023年3-9月期间在康复科住院部或门诊招募LDH患者60例。所有患者随机分配到rPMS组或常规组,每组各30例。两组患者均接受常规物理治疗和药物治疗,rPMS组在此基础上增加rPMS治疗。干预前、干预2周后进行VAS、JOA、神经电生理检查。结果治疗前后比较两组患者的VAS和JOA评分明显降低(P0.05)。治疗2周后,rPMS组与常规组相比胫神经运动传导速度、腓神经运动传导速度、腓浅神经感觉传导速度、腓肠神经感觉传导速度、H反射潜伏期和IP峰值差异有统计学意义(P<0.05)。结论rPMS可以明显改善和恢复LDH患者的疼痛以及神经损伤。rPMS可以作为一种有效的辅助治疗手段。

关键词：重复外周磁刺激腰椎间盘突出神经性疼痛

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深时源-汇系统要素的常用定量分析方法

地质科技通报 2024年第1期43卷 89-107页

作者：陈星渝张志杰万力袁选俊周川闽成大伟刘银河北京大学地球与空间科学学院北京100871 中国石油勘探开发研究院北京100083

源-汇系统研究是构造地质学、沉积学和层序地层学的综合,因其整体性、动态化和半定量-定量的特点受到了广泛关注。首先阐述了目前深时(前第四纪)源-汇系统的关键问题是物质平衡的定量表征及搬运过程对沉积物的控制,由于地层记录缺失和... 详细信息

源-汇系统研究是构造地质学、沉积学和层序地层学的综合,因其整体性、动态化和半定量-定量的特点受到了广泛关注。首先阐述了目前深时(前第四纪)源-汇系统的关键问题是物质平衡的定量表征及搬运过程对沉积物的控制,由于地层记录缺失和参数获取困难等原因,研究仍极具挑战。随后综述了深时源-汇系统定量分析方法,可分为地质年代学法、将今论古法和沉积学法。各方法通过获取地貌要素、水力学参数、侵蚀速率、沉积通量等信息,建立“源”“汇”之间的定量关系,进而重建盆地沉积充填演化史。通过系统介绍不同方法的基本原理、相关参数,对比其优越性及局限性,认为地质年代学法应用较广,核心在于物源示踪;将今论古法关键是地质背景的类比及地质参数的选择;沉积学法受多变量控制,需兼顾构造-气候背景及研究尺度。最后对深时源-汇系统定量分析的发展进行了展望,在“将今论古”这一重要思想指导下,需着眼于物源体系、沉积物搬运路径、沉积物分配关系、系统内的各要素及其耦合作用,需注重多时间尺度的定量表征、多学科交叉的动态研究。而相较于大陆边缘源-汇系统,陆相湖盆源-汇系统模式与预测模型有待进一步完善。

关键词：源-汇系统深时定量分析物质平衡沉积通量

Types,characteristics and geological significance of event deposits of Chang 9 Member of Triassic Yanchang Formation in southwestern Ordos Basin,NW China

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Petroleum Exploration and Development 2023年第3期50卷 588-602页

作者： WANG Ziye MAO Zhiguo yuan xuanjun DENG Xiuqin HUI Xiao ZHANG Zhongyi CUI Jingweil PetroChina Research Institute of Petroleum Exploration&Development Beijing 100083China National Energy Tight Oil&Gas Research&Development Center Beijing 100083China Key Laboratory of Oil and Gas Reservoir CNPCBeijing 100083China Research Institute of Exploration and Development PetroChina Changqing Oilfield CompanyXi'an 710018China

Through core observation,thin section identification,and logging and testing data analysis,the types and characteristics of event deposits in the ninth member of Yanchang Formation of Triassic(Chang 9 Member)in southwestern Ordos Basin,China,are examined.There are 4 types and 9 subtypes of event deposits,i.***.earthquake,gravity flow,volcanic and anoxic deposits,in the Chang 9 Member in the study area.Based on the analysis of the characteristics and distribution of such events deposits,it is proposed that the event deposits are generally symbiotic or associated,with intrinsic genetic relations and distribution laws.Five kinds of sedimentary microfacies with relatively developed event deposits are identified,and the genetic model of event deposits is discussed.Seismites are mainly developed in the lake transgression stage when the basin expands episodically,and commonly affected by liquefaction flow,gravity action and brittle shear deformation.Gravity flow,mainly distributed in the high water level period,sandwiched in the fine-grained sediments of prodelta or semi-deep lake,or creates banded or lobate slump turbidite fan.It is relatively developed above the seismites strata.The volcanic event deposits are only seen in the lower part of the Chang 9 Member,showing abrupt contact at the top and bottom,which reflects the volcanic activity at the same time.Anoxic deposits are mostly formed in the late stage of lake transgression to the highstand stage.Very thick organic-rich shales are developed in the highstand stage of Chang 9 Member,and the event deposits in the depositional period of these shales are conducive to potential reservoirs.

关键词： event deposit seismite gravity flow anoxic event Triassic Yanchang Formation Ordos Basin

Sequence structure, sedimentary evolution and their controlling factors of the Jurassic Lianggaoshan Formation in the East Sichuan Basin, SW China

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Petroleum Exploration and Development 2023年第2期50卷 293-305页

作者： CHENG Dawei ZHANG Zhijie HONG Haitao ZHANG Shaomin QIN Chunyu yuan xuanjun ZHANG Bin ZHOU Chuanmin DENG Qingjie PetroChina Research Institute of Petroleum Exploration&Development Beijing 100083China PetroChina Key Laboratory of Oil&Gas Reservoir Beijing 100083China PetroChina Southwest Oil and Gas Field Company Chengdu 610041China Research Institute of Exploration and Development PetroChina Southwest Oilfield CompanyChengdu 610041China Yangtze University Wuhan 430100China

Based on the data of outcrops, seismic sections, thin sections, heavy mineral assemblages and detrital zircon U-Pb dating, the sedimentary characteristics, lake level fluctuation and provenance characteristics of the Middle Jurassic Lianggaoshan Formation(J_(2)l) in eastern Sichuan Basin, SW China, were investigated to reveal the control of tectonic movements of the surrounding orogenic belts on the sedimentary systems. The J_(2)lmainly developed a delta–lake sedimentary system, which contained a complete third-order sequence that was subdivided into four lake level up-down cycles(fourth-order sequence).The lake basins of cycles Ⅰ and Ⅱ were mainly distributed in eastern Sichuan Basin, while the lake basins of cycles Ⅲ and Ⅳ migrated to central Sichuan Basin, resulting in the significant difference in sedimentary characteristics between the north and the south of eastern Sichuan Basin. The provenance analysis shows that there were three types of provenances for J_(2)l. Specifically, the parent rocks of Type Ⅰ were mainly acidic igneous rocks and from the proximal northern margin of the Yangtze Plate;the parent rocks of Type Ⅱ were intermediate-acid igneous rocks and metamorphic rocks and from the central parts of the southern and northern Qinling orogenic belts;the parent rocks of Type Ⅲ were mainly metamorphic rocks followed by intermediate–acid igneous rocks, and from the North Daba Mountain area. It is recognized from the changes of sedimentary system and provenance characteristics that the sedimentary evolution of J_(2)lin eastern Sichuan Basin was controlled by the tectonic compression of the Qinling orogenic belt. In the early stage, the lake basin was restricted to the east of the study area, and Type Ⅰ provenance was dominant. With the intensifying north-south compression of the Qinling orogenic belt, the lake basin expanded rapidly and migrated northward, and the supply of Type Ⅱ provenance increased. In the middle and late stages, the uplift of the North Daba Mountain led to the lake basin migration and

关键词： Sichuan Basin Jurassic Lianggaoshan Formation heavy mineral assemblage zircon U-Pb dating lake basin migration provenance analysis basin-mountain evolution

A PIID-DTBT based semi-conducting polymer dots with broad and strong optical absorption in the visible-light region： Highly effective contrast agents for multiscale and multi-spectral photoacoustic imaging

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Nano Research 2017年第1期10卷 64-76页

作者： Jian Zhang Haobin Chen Ting Zhou Limei Wang Duyang Gao xuanjun Zhang Yubin Liu Changfeng Wu Zhen yuan Bioimaging Core Faculty of Health Sciences University of Macao Taipa Macao SAR 999078 China State Key Laboratory on Integrated Optoelectronics College of Electronic Science and Engineering Jilin University Jilin 130012 China College of Optoelectronic Engineering Shenzhen University Shenzhen 518060 China College of Veterinary Medicine South China Agricultural University Guangzhou 510642 China Center for Drug Non-clinical Evaluation and Research Guangdong Biological Resources Institute Guangdong Academy of Sciences Guangzhou 510900 China

As a hybrid imaging technique, photoacoustic imaging （PAI） can provide multiscale morphological information of tissues, and the use of multi-spectral PAI （MSPAI） can recover the spatial distribution of chromophores of interest, such as hemoglobin within tissues. Herein, we developed a contrast agent that can very effectively combine multiscale PAI with MSPAI for a more comprehensive characterization of complex biological tissues. Specifically, we developed novel PIID-DTBT based semi-conducting polymer dots （Pdots） that show broad and strong optical absorption in the visible-light region （500-700 nm）. The performances of gold nanoparticles （GNPs） and gold nanorods （GNRs）, which have been verified as excellent photoacoustic contrast agents, were compared with that of the Pdots based on the multiscale PAI system. Both ex vivo and in vivo experiments demonstrated that the Pdots have better photoacoustic conversion efficiency at 532 nm than GNPs and showed similar photoacoustic performance with GNRs at 700 nm at the same mass concentration. Photostability and toxicity tests demonstrated that the Pdots are photostable and biocompatible. More importantly, an in vivo MSPAI experiment indicated that the Pdots have better photoacoustic performance than the blood and therefore the signals can be accurately extracted from the background of vascular-rich tissues. Our work demonstrates the great potential of Pdots as highly effective contrast agents for the precise localization of lesions relative to the blood vessels based on multiscale PAI and MSPAI.

关键词： nanoparticles,polymer dots,contrast agents,photoacoustic imaging,multiscale imaging,multi-spectral imaging