检索结果-南通市图书馆

Genesis of granular calcite in lacustrine fine-grained sedimentary rocks and its indication to volcanichydrothermal events: A case study of Permian Lucaogou Formation in Jimusar Sag, Junggar Basin, NW China

引用

Petroleum Exploration and Development 2023年第3期50卷 615-627页

作者： LI Ke XI Kelai CAO Yingchang WANG Youcheng lin miruo Key Laboratory of Deep Oil and Gas China University of Petroleum(East China)Qingdao 266580China

Granular calcite is an authigenic mineral in fine-grained sedimentary *** observation,thin section observation,cathodoluminescence analysis,fluid inclusion analysis,scanning electron microscope(SEM),and isotopic composition analysis were combined to clarify the genesis of granular calcite in the lacustrine fine-grained sedimentary rocks of the Permian Lucaogou Formation in the Jimusar Sag,Junggar *** is found that the granular calcite is distributed with laminated characteristics in fine-grained sedimentary rocks in tuffite zones(or the transitional zone between tuffite and micritic dolomite).Granular calcite has obvious cathodoluminesence band,and it can be divided into three ***-Ⅰ calcite,with non-luminesence,high content of Sr element,inclusions containing Cos,and homogenization temperature higher than 170℃,was directly formed from the volcanic-hydrothermal ***-Ⅱ calcite,with bright yellow luminescence,high contents of Fe,Mn and Mg,enrichment of light rare earth elements(LREEs),and high homogenization temperature,was formed by recrystallization of calcareous edges from exhalative hydrothermal ***-IlI calcite,with dark orange luminescence band,high contents of Mg,P,V and other elements,no obvious fractionation among LREEs,and low homogenization temperature,was originated from diagenetic transformation during *** granular calcite appears regularly in the vertical direction and its formation temperature decreases from the center to the margin of particles,providing direct evidences for volcanic-hydrothermal events during the deposition of the Lucaogou *** volcanic-hydrothermal event was conducive to the enrichment of organic matters in fine-grained sedimentary rocks of the Lucaogrou Formation,and positive to the development of high-quality source *** volcanic-hydrothermal sediments might generate intergranular pores/fractures during the evolution,creating conditions for the self-generation and sel

关键词： fine-grained sedimentary rocks calcite origin volcanic-hydrothermal event event deposition Permian Lucaogrou Formation Jimusar Sag Junggar 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

引用

Geoscience Frontiers 2023年第5期14卷 91-107页

作者： miruo lin Kelai Xi Yingchang Cao Rukai Zhu Xiaobing Niu Honggang Xin Weijiao Ma Key Laboratory of Deep Oil and Gas China University of Petroleum(East China)Qingdao 266580China Research Institute of Petroleum Exploration and Development PetroChinaBeijing 100083China PetroChina Changqing Oilfield Company Xi’an 700018China

The formation mechanism of micron-to centimeter-scale sedimentary cycles in lacustrine shales is a hot topic of research,because these small-scale sedimentary cycles significantly influence shale-oil distribution ***-frequency paleoenvironmental evolution is an important controlling factor for the formation of small-scale sedimentary ***,the driving factors of high-frequency paleoenvironmental evolution and the formation process of sedimentary cycles under its constraint remain *** this study,which focuses on lacustrine shales,we find that the alternating deposition of variable thickness of organic-rich lamina(ORL)and silty-grained felsic lamina(SSFL)form sedimentary cycles on the micron to centimeter scale in the Chang 73 sub-member of the Yanchang Formation in the Ordos *** on detailed petrographic characterization,in-situ geochemical parameter testing,and high-resolution cycle analysis,the formation process of cyclical sedimentary records and related paleoenvironmental evolution are *** solar activity cycles were identified from the shales,namely the 360–500 yr,81–110 yr,and 30–57 yr cycles(cycles I,II,and III,respectively).Highfrequency paleoenvironmental evolution caused by solar activity induced lake-level fluctuation,which further controlled silty-grained sediment deposition and organic matter preservation in deep lake *** I controlled relatively long-term lake-level fluctuation,driving several pairs of SSFL and ORL deposition at the centimeter *** II and III were short-term cycles and acted on the millimeter to micrometer scale,further complicating the sedimentary strata forming during the period of lake-level fall induced by cycle *** cyclic deposition of SSFL and ORL correspond to cycle ***-level fluctuation influenced by cycle II mainly caused SSFL thickness variation in each lamina *** the period of lake-level rise induced by cycle I,periods of lake level rise

关键词： Triassic Lacustrine shales Solar activity Lake-level fluctuation Shale-oil exploration

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Control of micro-wettability of pore-throat on shale oil occurrence:A case study of laminated shale of Permian Lucaogou Formation in Jimusar Sag,Junggar Basin,NW China

引用

Petroleum Exploration and Development 2023年第2期50卷 334-345页

作者： XI Kelai ZHANG Yuanyuan CAO Yingchang GONG Jianfei LI Ke lin miruo Key Laboratory of Deep Oil and Gas China University of Petroleum(East China)Qingdao 266580China Exploration and Development Research Institute Sinopec Shengli Oilfield CompanyDongying 257000China Sinopec Shengli Oilfield Company Dongying 257000China

The control of micro-wettability of pore-throat on shale oil occurrence in different types of reservoir spaces remains *** the shale oil reservoir of the Permian Lucaogou Formation in the Jimusar Sag,Junggar Basin as an example,the reservoir space in laminated shale and the control of micro-wettability of pore-throat on shale oil occurrence were studied by using scanning electron microscope(SEM),multi-stage pyrolysis,quantitative fluorescence,nuclear magnetic resonance(NMR)and other *** results show that there are mainly two types of laminated shale in the Lucaogou Formation,namely laminated shale rich in volcanic materials+terrigenous felsic,and laminated shale rich in volcanic materials+*** former type contains feldspar dissolution pores and intergranular pores,mainly with felsic mineral components around the pore-throats,which are water-wet and control the free shale *** latter type contains carbonate intercrystalline pores and organic pores,mainly with oil-wet mineral components around the pore-throats,which control the adsorbed shale *** oil-wet mineral components around the pore-throats are conducive to oil accumulation,but reduce the proportion of free *** the Lucaogou Formation,free oil,with high maturity and light quality,mainly occurs in the laminated shale rich in volcanic materials+terrigenous felsic.

关键词： shale lamina pore-throat wettability oil occurrence state shale oil reservoir Permian Lucaogou Formation Ji-musar Sag Junggar 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

Applications of Light Stable Isotopes(C, O, H) in the Study of Sandstone Diagenesis: A Review

引用

Acta Geologica Sinica(English Edition) 2019年第1期93卷 213-226页

作者： XI Kelai CAO Yingchang lin miruo LIU Keyu WU Songtao YUAN Guanghui YANG Tian Key Laboratory of Deep Oil and Gas China University of Petroleum Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and Technology Research Institute of Petroleum Exploration & Development

This article reviews the applications of light stable isotope, including carbon, oxygen and hydrogen, in thestudies on origin and formation temperature of authigenic carbonate, quartz and clay minerals. Theoretical knowledge andanalytical methods for major light stable isotopes are introduced in detail. Negative and positive δ^(13)C values indicatesignificant differences on the origin of carbonate cements. The δ^(18)O value is an effective palaeotemperature scale forauthigenic minerals formation. Various fractionation equations between δ^(18)O and temperature are proposed for carbonatecements, quartz cements and clay minerals, whose merit and demerit, applicable conditions are clarified clearly. Clumpedisotope analysis can reconstruct the temperature of carbonate precipitation with no requirement on the δ^(18)O of initial waters,which makes temperature calculation of carbonate cements formation more convenient and accurate. Hydrogen and oxygenisotopes mainly reflect the origin of diagenetic fluid for clay mineral formation, providing reliable evidence for diageneticenvironment analysis. This work aims at helping researchers for better understanding the applications of light stable isotopein sandstone diagenesis.

关键词： light stable isotopes carbonate cements quartz cements clay minerals sandstone diagenesis

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

Laminae combination and shale oil enrichment patterns of Chang 73 sub-member organic-rich shales in the Triassic Yanchang Formation, Ordos Basin, NW China

引用

Petroleum Exploration and Development 2020年第6期47卷 1342-1353页

作者： XI Kelai LI Ke CAO Yingchang lin miruo NIU Xiaobing ZHU Rukai WEI Xinzhuo YOU Yuan LIANG Xiaowei FENG Shengbin Key Laboratory of Deep Oil and Gas China University of Petroleum(East China)Qingdao 266580China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China PetroChina Changqing Oilfield Company Xi’an 710065China PertroChina Research Institute of Petroleum Exploration&Development Beijing 100083China

The Chang 73 sub-member of Triassic Yanchang Formation in the Ordos Basin was taken as an example and the lamina types and combinations,reservoir space features and shale oil enrichment patterns in organic-rich shale strata were investigated using core observation,thin section analysis,XRF element measurement,XRD analysis,SEM,high solution laser Raman spectroscopy analysis,and micro-FTIR spectroscopy analysis,*** to the mineral composition and thickness of the laminae,the Chang 73 organic-rich shales have four major types of laminae,tuff-rich lamina,organic-rich lamina,silt-grade feldspar-quartz lamina and clay *** have two kinds of shale oil-bearing layers,"organic-rich lamina+silt-grade feldspar-quartz lamina"and"organic-rich lamina+tuff-rich lamina"*** the"organic-rich+silt-grade feldspar-quartz"laminae combination shale strata,oil was characterized by relative high maturation,and always filled in K-feldspar dissolution pores in the silt-grade feldspar-quartz laminae,forming oil generation,migration and accumulation process between laminae inside the organic *** the"organic-rich+tuff-rich lamina"binary laminae combination shale strata,however,the reservoir properties were poor in organic-rich shales,the oil maturation was relatively lower,and mainly accumulated in the intergranular pores of interbedded thin-layered *** oil generation,migration and accumulation mainly occurred between organic-rich shales and interbedded thin-layered sandstones.

关键词： organic-rich shale laminae combination oil enrichment patterns shale oil Triassic Yanchang Formation Ordos 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

Pore size distribution,their geometry and connectivity in deeply buried Paleogene Es1 sandstone reservoir,Nanpu Sag,East China

引用

Petroleum Science 2019年第5期16卷 981-1000页

作者： Muhammad Kashif Yingchang Cao Guanghui Yuan Muhammad Asif Kamran Javed Jose Nicanor Mendez Danish Khan lin miruo School of Geosciences China University of PetroleumQingdao 266580China Department of Earth Sciences University of SargodhaSargodha 40100Pakistan Institute of Geology University of the PunjabLahorePakistan

The study or pore characteristics is or great importance in reservoir evaluation,especially in deeply buried s *** controls the storage mechanism and reservoir fluid properties of the permeable *** first member of Eocene Shahejie Formation(Esl)sandstone is classified as feldspathic litharenite and lithic *** present research investigates the pore characteristics and reservoir features of the deeply buried sandstone reservoir of Esl member of Shahejie *** techniques including thin-section petrography,mercury injection capillary pressure(MICP),scanning electron microscopy and laser scanning confocal microscope images were used to demarcate the pores including primary intergranular pores and secondary intergranular,intragranular,dissolution and fracture *** injection test and routine core analysis were led to demarcate the pore network characteristics of the studied *** size and pore throat size distribution are acquired from mercury injection *** values range from 0.5%to 30%,and permeability ranges 0.006-7000 *** radii of coarse-grained sandstone and fine-grained sandstone range from 0.2 to>4μm and 1 nm to 1.60μm,respectively,by MICP *** mineral composition also plays an important role in protecting the pores with pressure from *** sandstone and coarse-grained sandstone consist of large and interconnected pores that enhance the reservoir porosity and permeability,whereas fine-grained sandstone and siltstone consist of numerous pores but not well interconnected,and so they consist of high porosity with low permeability.

关键词： Reservoir rock Pore characteristics Pore size distribution Pore throat Porosity Permeability

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

湖相细粒沉积岩中晶粒方解石成因及其对火山-热液活动的指示——以吉木萨尔凹陷二叠系芦草沟组为例

引用

石油勘探与开发 2023年第3期50卷 541-552页

作者：李克葸克来操应长王有成林敉若中国石油大学(华东)深层油气重点实验室山东青岛266580

以准噶尔盆地吉木萨尔凹陷二叠系芦草沟组细粒沉积岩中晶粒方解石为研究对象,综合运用岩心观察、薄片观察、阴极发光分析、流体包裹体测试、扫描电镜、同位素组成分析等手段,对湖相细粒沉积岩中自生矿物的成因开展研究。结果表明:晶粒... 详细信息

以准噶尔盆地吉木萨尔凹陷二叠系芦草沟组细粒沉积岩中晶粒方解石为研究对象,综合运用岩心观察、薄片观察、阴极发光分析、流体包裹体测试、扫描电镜、同位素组成分析等手段,对湖相细粒沉积岩中自生矿物的成因开展研究。结果表明:晶粒方解石呈层状分布于沉凝灰岩发育层段或沉凝灰岩与泥晶白云岩过渡层段的细粒沉积物中,方解石具有明显的阴极发光环带,可分为3期:Ⅰ期方解石不发光,含有较高的Sr元素,包裹体中包含羰基硫成分,均一温度超过170℃,由火山-热液喷流物质沉积形成;Ⅱ期方解石呈亮黄色光,含有较高的Fe、Mn、Mg元素,轻稀土元素富集,包裹体均一温度高,为热液喷流的钙质环边重结晶形成;Ⅲ期方解石呈暗橙色发光的环带,含有较高的Mg、P、V等元素,稀土元素无明显分异,包裹体均一温度低,为埋藏过程中成岩转化形成。晶粒方解石在垂向上规律性出现,并且其形成温度由颗粒中心向边缘降低,为芦草沟组沉积时期的火山-热液活动提供了直接证据。沉积期火山-热液活动有利于芦草沟组细粒沉积岩中的有机质富集,对优质烃源岩发育有正面效应,并且火山-热液喷流物质在演化过程中易形成晶间孔缝,为页岩油自生自储创造了条件。

关键词：细粒沉积岩方解石成因火山-热液活动事件沉积二叠系芦草沟组吉木萨尔凹陷准噶尔盆地

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

孔喉微观润湿性对页岩油赋存的控制作用——以准噶尔盆地吉木萨尔凹陷二叠系芦草沟组纹层状页岩为例

引用

石油勘探与开发 2023年第2期50卷 297-308页

作者：葸克来张媛媛操应长宫剑飞李克林敉若中国石油大学(华东)深层油气重点实验室山东青岛266580 中国石化胜利油田分公司勘探开发研究院山东东营257000 中国石化胜利油田分公司山东东营257000

针对页岩不同类型储集空间中孔喉微观润湿性对其控制作用仍不明确的问题,以准噶尔盆地吉木萨尔凹陷二叠系芦草沟组页岩油储集层为例,综合运用扫描电镜、多阶热解、储集层定量荧光、核磁共振等分析方法,开展纹层状页岩储集空间特征及孔... 详细信息

针对页岩不同类型储集空间中孔喉微观润湿性对其控制作用仍不明确的问题,以准噶尔盆地吉木萨尔凹陷二叠系芦草沟组页岩油储集层为例,综合运用扫描电镜、多阶热解、储集层定量荧光、核磁共振等分析方法,开展纹层状页岩储集空间特征及孔喉微观润湿性对页岩油赋存控制作用的研究。结果表明:芦草沟组主要发育“富火山物质+陆源长英质”纹层状页岩和“富火山物质+碳酸盐”纹层状页岩,其中“富火山物质+陆源长英质”纹层状页岩发育长石溶蚀孔隙和粒间孔隙,孔喉周缘矿物组分主要为长英质矿物组分,呈亲水性特征,主要控制游离态页岩油。“富火山物质+碳酸盐”纹层状页岩发育碳酸盐晶间孔和有机质孔隙,孔喉周缘矿物组分主要呈亲油性特征,控制吸附态页岩油。孔喉周缘主要为油润湿碳酸盐组分时,利于原油的聚集,但使得游离态的油含量比例下降。芦草沟组页岩游离油主要赋存于“富火山物质+陆源长英质”纹层组合的陆源长英质纹层中,成熟度较高、油质较轻。

关键词：页岩纹层孔喉润湿性原油赋存状态页岩油储集层二叠系芦草沟组吉木萨尔凹陷准噶尔盆地

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 fast forward computational method for nuclear measurement using volumetric detection constraints

引用

Nuclear Science and Techniques 2024年第2期35卷 47-63页

作者： Qiong Zhang lin-Lv lin University of Electronic Science and Technology of China Chengdu 610000China

Owing to the complex lithology of unconventional reservoirs,field interpreters usually need to provide a basis for interpretation using logging simulation *** the various detection tools that use nuclear sources,the detector response can reflect various types of information of the *** Monte Carlo method is one of the primary methods used to obtain nuclear detection responses in complex ***,this requires a computational process with extensive random sampling,consumes considerable resources,and does not provide real-time response ***,a novel fast forward computational method(FFCM)for nuclear measurement that uses volumetric detection constraints to rapidly calculate the detector response in various complex environments is ***,the data library required for the FFCM is built by collecting the detection volume,detector counts,and flux sensitivity functions through a Monte Carlo ***,based on perturbation theory and the Rytov approximation,a model for the detector response is derived using the flux sensitivity function method and a one-group diffusion *** environmental perturbation is constrained to optimize the model according to the tool structure and the impact of the formation and borehole within the effective detection ***,the method is applied to a neutron porosity tool for *** various complex simulation environments,the maximum relative error between the calculated porosity results of Monte Carlo and FFCM was 6.80%,with a rootmean-square error of 0.62 *** field well applications,the formation porosity model obtained using FFCM was in good agreement with the model obtained by interpreters,which demonstrates the validity and accuracy of the proposed method.

关键词： Nuclear measurement Fast forward computation Volumetric constraints

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

The Existence of a Meridional Curve in Closed Incompressible Surfaces in Fully Alternating link Complements

引用

Chinese Annals of Mathematics,Series B 2024年第1期45卷 73-80页

作者： Wei lin School of Mathematical Sciences Dalian University of TechnologyDalian 116024LiaoningChina

Menasco showed that a closed incompressible surface in the complement of a non-split prime alternating link in S^(3) contains a circle isotopic in the link complement to a meridian of the *** on this result,he was able to argue the hyperbolicity of non-split prime alternating links in *** et *** that if F■S×I\L is an essential torus,then F contains a circle which is isotopic in S×I\L to a meridian of *** author generalizes his result as follows:Let S be a closed orientable surface,L be a fully alternating link in S×I\If F ■ S×I\L is a closed essential surface,then F contains a circle which is isotopic in S×I\L to a meridian of L.

关键词： Fully alternating Incompressible surfaces Meridionally incompressible

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：