Dongying limestone calcite

Mineralogical and geochemical characterization of lacustrine

2023年9月1日  In the Dongying Depression (DD), shale lithofacies and depositional environment were previously examined, logged, and characterized in outcrops and drilling cores, using a Calcite ranges from 7 to 893% (avg 596%) in the Es 4 s shale with three different morphologies including micrite, sparite (recrystallized calcite), and fibrous calcite (Figure 3, Table 1) Various laminations are composed of Microscopic Reservoir Characteristics of the 2022年3月30日  The lacustrine carbonate deposition in the Eocene Dongying Depression was investigated using a combination of mineralogical, petrological and geochemical analyses Variation of lacustrine carbonate deposition in the Eocene Dongying 2016年4月1日  By applying such technologies as detailed description of cores, identification of thin sections, Xray diffraction analysis, and scanning electron microscopy, this paper establishes the lithofacies(PDF) Lithofacies types and reservoirs of

Frontiers Characterization, Classification, and

2022年3月23日  The Es 4S FSR reservoir of the Chenguanzhuang area in the southern slope of the Dongying Depression contains calcite and clay minerals as the primary mineral constituents, and feldspar, dolomite and pyrite as the 2023年3月9日  Taking the layered argillaceous limestone in the upper Es4 in the Dongying Sag as the research object, the geochemical analysis of major, trace, and rare earth elements Rare Earth Partition Characteristics and Sedimentary 2019年6月1日  In the Dongying sag, the shale oil is trapped primarily within interlayer of dark extremely lowpermeability shale with argillaceous siltstone and carbonate, and usually is Shale pore characteristics of Shahejie Formation: Implication 2014年7月1日  The LF4LF7 assemblage is developed in both Unit 2 and Unit 3, but there is a set of 55 cm thick layered medium bioclast limestone in Unit 3, which is distinguished from the lithofacies Reservoir space of the Es33–Es41 shale in Dongying sag

Shale oil potential of lacustrine black shale in the Eocene Dongying

2017年11月10日  The geochemistry and reservoir characteristics of the lacustrine shale in the Eocene Dongying depression are described in detail based on thin section and field emission scanning electron 2023年8月25日  Limestone: Calcite is a major component of limestone, a common construction material used for buildings, roads, and monuments Limestone’s durability, workability, and aesthetic qualities make it a favored Calcite : Properties, Formation, Occurrence and 2022年4月14日  Drilling has demonstrated that oil can be produced from the lacustrine shale in the upper part of the fourth member of the Shahejie Formation (Es4s) in Dongying Depression(PDF) Characteristics of Lithofacies Combinations and 2023年3月9日  Taking the layered argillaceous limestone in the upper Es4 in the Dongying Sag as the research object, the geochemical analysis of major, trace, and rare earth elements (REEs) Sparry calcite veins originate from diagenetic fluid crystallization and precipitation and have the characteristics of low Th and U, evident positive anomalies of Sr Rare Earth Partition Characteristics and Sedimentary

Variation of lacustrine carbonate deposition in the Eocene Dongying

2022年3月30日  (b) Micritic calcite (MC) in lowTOC laminated limestone, Well FY1, 3415 m (c) Granular calcite (GC) constitutes light laminae, Well FY1, 3386 m (d) Recrystallization from MC to GC, Well NY1 2014年7月1日  The Es 3 3 –Es 4 1 shales in Dongying sag are source rocks with large reserves of shale oil and gas For the identification of development characteristics and geological significance of the reservoir space, FMI logging, core observation, thin section analysis, Xray diffraction, fluorescence microscopy, scanning electron microscopy, mercury porosimetry, low Reservoir space of the Es33–Es41 shale in Dongying sag2021年2月7日  The Dongying Depression in eastern China is rich in oilbearing shales in which several beddingparallel calcite veins are preserved [23] Such veins are regarded to have favored the preservation of oil in the Dongying Depression [24, 25] However, there is a lack of systematic description and classification ofthe veinsOrigin of BeddingParallel Calcite Veins from Lacustrine 2024年3月17日  The distinction between calcite and limestone lies in their nature; calcite is a mineral, a single substance with a definite chemical composition, while limestone is a rock composed of a mixture of minerals, primarily calcite, but often with impurities such as silica, clay, silt, and sand These impurities can affect the color, texture, and Calcite vs Limestone — What’s the Difference?

Lithofacies Characteristics of Continental Lacustrine Fine

2024年4月30日  Lacustrine finegrained sedimentary rocks in the Dongying Sag of the Bohai Bay Basin in China exhibit significant potential for hydrocarbon exploration This study investigates the lithofacies types and sedimentary evolution of the Paleogene Shahejie Formation’s lower third member (Es3l) and upper fourth member (Es4u), integrating petrological and geochemical 2024年1月12日  Dogtooth spar, a striking form of calcite, is often found in limestone caves where water deposits the mineral over time It can also be discovered in hot spring areas, where the mineralrich waters help form these The 12 Different Types Of Calcite (With Photos)2018年12月1日  Beddingparallel, fibrous calcite veins (commonly referred to as “beefs”) are widely developed within Eocene, lacustrine, laminated organicrich source rocks in the Dongying Depression of Bohai Bay Basin, East ChinaUnderstanding the formation of this type vein is essential to elucidate the diagenetic evolution and fluid migration in muddy source rocksFormation of beddingparallel, fibrous calcite veins in PDF On Aug 1, 2019, Yangchen Zhang and others published WaterRock Simulation During Limestone Dissolution Find, read and cite all the research you need on ResearchGate(PDF) WaterRock Simulation During Limestone

Limestone Types, Properties, Composition, Formation, Uses

2023年10月21日  Limestone is a sedimentary rock primarily composed of calcium carbonate (CaCO3) in the form of mineral calcite or aragoniteIt is one of the most common and widely distributed rocks on Earth, with a wide range of uses in various industries and natural settings Limestone forms through the accumulation and compaction of marine organisms, primarily the 2021年3月1日  Calcite cements are volumetrically predominant among the most diagenetic constituents in turbidite sandstones of the Paleogene Shahejie Formation, Dongying depressionDistribution Patterns of Calcite Cement in Turbidite 2020年1月15日  石灰岩（Lime Stone）、方解石（Calcite）一、概述石灰岩是一种以方解石为主要成分的碳酸盐岩。碳酸钙含量在98%以上的石灰岩，工业上称为方解石矿或碳酸钙矿。方解石的化学式为Ca[CO3]，其理论化学组成为：CaO560石灰岩（Lime Stone）、方解石（Calcite）百度知道2021年7月1日  The Dongying depression (5700 km 2) is located in the southern part of Jiyang Subbasin of the Bohai Bay Basin (Fig 1 a) Tectonic evolution of the depression is subdivided into a synrift stage between 65 and 246 Ma, and a postrift stage from 246 Ma to present (Guo et al, 2010)Dongying Depression is a complex half graben defined by a faulted margin in the north Faultcontrolled carbonate cementation: A case study from

Origin and reservoirs characterization of lacustrine carbonate

2016年7月1日  Generally speaking, hydrodynamic conditions control the distributional pattern of these reservoirs, for limestone grains filled intergranularly with sparry calcite cement are formed under strong 2018年12月1日  The Dongying Depression is a lacustrine basin (Qi and Yang, 2010) located in the southeastern Jiyang Subbasin—the location of the largest oilfield in East China The Dongying Depression is an oilrich basin, and the area of exploration (~5700 km 2) around the basin contains >10 oil and gas fields The overall trend of the Dongying Depression Formation of beddingparallel, fibrous calcite veins in Lamellar calcite veins are prevalent in carbonaterich, lacustrine dark shale The formation mechanisms of these veins have been extensively debated, focusing on factors such as timing, depth, material source, and driving forces This paper examines dark lacustrine shale lamellar calcite veins in the Paleogene strata of Dongying Depression, using various analytical Further study on the genesis of lamellar calcite veins in 2022年6月16日  potential, major pore type in the lamellar argillaceous limestone and veined recrystallized limestone include organic matter shrinkage microfractures, calcite intercrystalline dissolved pores (120e900nm size), recrystallized intercrystalline pores (100e40000nm size) and clay mineral intercrystalline shrinkage fractures (20e1200nm) 32Shale pore characteristics of Shahejie Formation:

Rare Earth Partition Characteristics and Sedimentary

2024年3月28日  Taking the layered argillaceous limestone in the upper Es4 in the Dongying Sag as the research object, the geochemical analysis of major, trace, and rare earth elements (REEs) established the response relationship between REE distribution characteristics and Recrystallized calcite lamina Recrystallized calcite lamina Micrite calcite lamina 2022年3月16日  The reservoir space characteristics of the dolomite reservoir in the Dongying Depression, Bohai Bay Basin (a) The intercrystalline pores (yellow arrow) between the saddle dolomites (D4), Well (PDF) Characteristics and Formation Mechanism of the2018年10月1日  Beddingparallel, fibrous calcite veins (commonly referred to as “beefs”) are widely developed within Eocene, lacustrine, laminated organicrich source rocks in the Dongying Depression of Formation of beddingparallel, fibrous calcite veins in 2016年2月15日  The Eocene Es4s interval is an important petroleum reservoir of sublacustrine fan dominated at the depths of 2500–4000 m in Dongying depression, Bohai Bay basin(PDF) Origin of carbonate cements with implications for

Astronomical forcing of meterscale organicrich mudstonelimestone

2022年8月1日  The middle Eocene Dongying sag in the Bohai Bay Basin of China has an estimated shale oil resource of approximately 11 billion t (806 billion bbl); flows of shale oil have been produced in the 2022年5月20日  目的 通过对中国东部渤海湾盆地东营凹陷发育的大套具有韵律特征的富含碳酸盐物质和有机质的湖相细粒沉积岩进行深入研究,以期探究其成因机制以及古气候、古环境的变化特征。 方法 基于岩心和薄片观察,依据沉积构造特征和矿物组分含量进行岩相划分。天文旋回约束下东营凹陷中始新统含碳酸盐细粒沉积岩成因分析2022年7月14日  It was mainly formed under hot and dry summer conditions in lake water with high salinity The sedimentation of lacustrine primary carbonate is related to the development of phytoplankton During diagenesis, micrite calcite will form sparry calcite under the actions of organic acid (Liang, 2015; Wu, 2015; Sun et al, 2017) Dolomite and paste Continental lacustrine finegrained lithofacies, assemblage The three calcite deposits (known as marbles) in green, pink and white colors located at the GharehGheshlagh in south basin of Urmia Lake by making use of sampling and geochemical analysis REE distribution curves of calcite and dolomite at Dongying

Diagenesis and reservoir quality evolution of the Eocene

2015年4月1日  The Eocene sandstones in the northern Dongying Sag experienced compaction and precipitation of calcite and dolomite in eodiagecetic stage, and in mesodiagenetic stage, main chemical processes are feldspar dissolution, precipitation of quartz, kaolin, illite, ferrocalcite and ankerite, and illitization of kaolin2014年7月1日  The LF4LF7 assemblage is developed in both Unit 2 and Unit 3, but there is a set of 55 cm thick layered medium bioclast limestone in Unit 3, which is distinguished from the lithofacies Reservoir space of the Es33–Es41 shale in Dongying sag2017年11月10日  The geochemistry and reservoir characteristics of the lacustrine shale in the Eocene Dongying depression are described in detail based on thin section and field emission scanning electron Shale oil potential of lacustrine black shale in the Eocene Dongying 2023年8月25日  Limestone: Calcite is a major component of limestone, a common construction material used for buildings, roads, and monuments Limestone’s durability, workability, and aesthetic qualities make it a favored Calcite : Properties, Formation, Occurrence and

(PDF) Characteristics of Lithofacies Combinations and

2022年4月14日  Drilling has demonstrated that oil can be produced from the lacustrine shale in the upper part of the fourth member of the Shahejie Formation (Es4s) in Dongying Depression2023年3月9日  Taking the layered argillaceous limestone in the upper Es4 in the Dongying Sag as the research object, the geochemical analysis of major, trace, and rare earth elements (REEs) Sparry calcite veins originate from diagenetic fluid crystallization and precipitation and have the characteristics of low Th and U, evident positive anomalies of Sr Rare Earth Partition Characteristics and Sedimentary 2022年3月30日  (b) Micritic calcite (MC) in lowTOC laminated limestone, Well FY1, 3415 m (c) Granular calcite (GC) constitutes light laminae, Well FY1, 3386 m (d) Recrystallization from MC to GC, Well NY1 Variation of lacustrine carbonate deposition in the Eocene Dongying 2014年7月1日  The Es 3 3 –Es 4 1 shales in Dongying sag are source rocks with large reserves of shale oil and gas For the identification of development characteristics and geological significance of the reservoir space, FMI logging, core observation, thin section analysis, Xray diffraction, fluorescence microscopy, scanning electron microscopy, mercury porosimetry, low Reservoir space of the Es33–Es41 shale in Dongying sag

Origin of BeddingParallel Calcite Veins from Lacustrine

2021年2月7日  The Dongying Depression in eastern China is rich in oilbearing shales in which several beddingparallel calcite veins are preserved [23] Such veins are regarded to have favored the preservation of oil in the Dongying Depression [24, 25] However, there is a lack of systematic description and classification ofthe veins2024年3月17日  The distinction between calcite and limestone lies in their nature; calcite is a mineral, a single substance with a definite chemical composition, while limestone is a rock composed of a mixture of minerals, primarily calcite, but often with impurities such as silica, clay, silt, and sand These impurities can affect the color, texture, and Calcite vs Limestone — What’s the Difference?2024年4月30日  Lacustrine finegrained sedimentary rocks in the Dongying Sag of the Bohai Bay Basin in China exhibit significant potential for hydrocarbon exploration This study investigates the lithofacies types and sedimentary evolution of the Paleogene Shahejie Formation’s lower third member (Es3l) and upper fourth member (Es4u), integrating petrological and geochemical Lithofacies Characteristics of Continental Lacustrine Fine

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