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Present Terrestrial Heat Flow Measurements of the Geothermal Fields in the Chagan Sag of the YingenEjinaqi Basin,Inner Mongolia,China

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Acta Geologica Sinica(English Edition) 2019年第2期93卷 283-296页

作者： FENG Renpeng ZUO yinhui YANG Meihua ZHANG Jiong LIU Zhi ZHOU Yongshui HAO Qingqing State Key Laboratory of Oil and Gas Geology and Exploitation Chengdu University of Technology Shandong Provincial Key Laboratory of Depositional Mineralization & Sedimentary Minerals Shandong University of Science and Technology State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Geothermal and Environmental Research Institute Institute for Global Environment Change Xi'an Jiaotong University Research Institute of Exploration and Development Zhongyuan Oilfield SINOPEC Institute of Mineral Resources Research China Metallurgical Geology Bureau

Owing to the lack o f terrestrial heat flow data, studying lithospheric thermal structure and geodynamics of the Yingen-Ejinaqi Basin in Inner Mongolia is limited. In this paper, the terrestrial heat flow o f the Chagan sag in the YingenEjinaqi Basin were calculated by 193 system steady-state temperature measurements of 4 wells, and newly measuring 62 rock thermal conductivity and 20 heat production rate data on basis o f the original 107 rock thermal conductivity and 70 heat production data. The results show that the average thermal conductivity and heat production rate are 2.11 ±0.28 W/(m.K) and2.42±0.25 nW/m^3 in the Lower Cretaceous o f the Chagan sag. The average geothermal gradient from the Lower Suhongtu 2 Formation to the Suhongtu 1 Fonnation is 37.6 °C/km, and that o f the Bayingebi 2 Formation is 27.4 °C/km. Meanwhile, the average terrestrial heat flow in the Chagan sag is 70.6 mW/m^2. On the above results, it is clear that there is an obvious negative correlation between the thermal conductivity o f the stratum and its geothermal gradient. Moreover, it reveals that there is a geothermal state between tectonically stable and active areas. This work may provide geothermal parameters for further research o f lithospheric thermal structure and geodynamics in the Chagan sag.

关键词： thermophysical parameters geothermal gradient terrestrial heat flow Chagan sag Yingen-Ejinaqi Basin

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Characteristics and Natural Gas Origin of Middle-Late Triassic Marine Source Rocks of the Western Sichuan Depression, SW China

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Acta Geologica Sinica(English Edition) 2020年第2期94卷 376-398页

作者： SUN Tengjiao LUO Xiaoping QING Hairuo KOU Xueling SHENG Zhongming XU Guosheng ZUO yinhui College of Energy Resource Chengdu University of TechnologyChengdu 610059China State Key Laboratory of Oil and Gas Geology and Exploitation.Chengdu 610059 China Department of Geology University of ReginaReginaSaskatchewanS4S0A2.Canada South Exploration Company SINOPECChengdu 610041China

A scientific exploration well(CK1) was drilled to expand the oil/gas production in the western Sichuan depression, SW, China. Seventy-three core samples and four natural gas samples from the Middle–Late Triassic strata were analyzed to determine the paleo-depositional setting and the abundance of organic matter(OM) and to evaluate the hydrocarbon-generation process and potential. This information was then used to identify the origin of the natural gas. The OM is characterized by medium n-alkanes(n C15–n C19), low pristane/phytane and terrigenous aquatic ratios(TAR), a carbon preference index(CPI) of ~1, regular steranes with C29 > C27 > C28, gammacerane/C30 hopane ratios of 0.15–0.32, and δDorg of-132‰ to-58‰, suggesting a marine algal/phytoplankton source with terrestrial input deposited in a reducing–transitional saline/marine sedimentary environment. Based on the TOC, HI index, and chloroform bitumen "A" the algalrich dolomites of the Leikoupo Formation are fair–good source rocks;the grey limestones of the Maantang Formation are fair source rocks;and the shales of the Xiaotangzi Formation are moderately good source rocks. In addition, maceral and carbon isotopes indicate that the kerogen of the Leikoupo and Maantang formations is type Ⅱ and that of the Xiaotangzi Formation is type Ⅱ–Ⅲ. The maturity parameters and the hopane and sterane isomerization suggest that the OM was advanced mature and produced wet–dry gases. One-dimensional modeling of the thermal-burial history suggests that hydrocarbon-generation occurred at 220–60 Ma. The gas components and C–H–He–Ar–Ne isotopes indicate that the oilassociated gases were generated in the Leikoupo and Maantang formations, and then, they mixed with gases from the Xiaotangzi Formation, which were probably contributed by the underlying Permian marine source rocks. Therefore, the deeply-buried Middle–Late Triassic marine source rocks in the western Sichuan depression and in similar basins have a great significant hydrocarbo

关键词： Middle to Late Triassic source rock characteristics hydrocarbon generation and potential origin of naturalgas western Sichuan depression

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Meso–Cenozoic Tectono-Thermal Evolution History in Bohai Bay Basin, North China

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Journal of Earth Science 2015年第3期26卷 352-360页

作者： yinhui Zuo Nansheng Qiu Jiawei Li Qingqing Hao Xiongqi Pang Zhongying Zhao Qi Zhu College of Energy Resources Chengdu University of Technology State Key Laboratory of Petroleum Resource and Prospecting China University of Petroleum Key Laboratory of Engineering Geomechanics Institute of Geology and Geophysics Chinese Academy of Sciences Institute of Mineral Resource Research China Metallurgical Geology Bureau Petro China Research Institute of Petroleum Exploration Zhanjiang Oil Company China National Offshore Oil Corporation

The thermal history of sedimentary basins is a key factor for hydrocarbon accumulation and resource assessment, and is critical in the exploration of lithospheric tectono-thermal evolution. In this paper, the Cenozoic thermal histories of nearly 200 wells and the Mesozoic thermal histories of 15 wells are modeled based on the vitrinite reflectance and apatite fission track data in Bohai Bay Basin, North China. The results show that the basin experienced Early Cretaceous and Paleogene heat flow peaks, which reveals two strong rift tectonic movements that occurred in the Cretaceous and the Paleogene in the basin, respectively. The thermal evolution history in Bohai Bay Basin can be divided into five stages including（1） the low and stable heat flow stage from the Triassic to the Jurassic, with the heat flow of 53 to 58 m W/m2;（2） the first heat flow peak from the Early Cretaceous to the middle of the Late Cretaceous, with a maximum heat flow of 81 to 87 m W/m2;（3） the first post-rift thermal subsidence stage from the middle of the Late Cretaceous to the Paleocene, with the heat flow of 65 to 74 m W/m2 at the end of the Cretaceous;（4） the second heat flow peak from the Eocene to the Oligocene, with a maximum heat flow of 81 to 88 m W/m2; and（5） the second thermal subsidence stage from the Neogene to present, with an average heat flow of 64 m W/m2.

关键词： Bohai Bay Basin Meso–Cenozoic thermal history vitrinite reflectance apatite fission track

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基于区间的传输线感应电压不确定性分析方法

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强激光与粒子束 2022年第4期34卷 71-74页

作者：王旭桐周辉程引会西北核技术研究所强脉冲辐射环境模拟与效应国家重点实验室西安710024

为分析多导体传输线耦合情况下线缆结构参数的不确定性对终端电压的影响,引入了一种基于区间分析的切比雪夫(Chebyshev)多项式逼近方法。该方法首先将传输线电报方程转换为常微分方程求解;其次采用Chebyshev多项式求得电报方程的扩张函... 详细信息

为分析多导体传输线耦合情况下线缆结构参数的不确定性对终端电压的影响,引入了一种基于区间分析的切比雪夫(Chebyshev)多项式逼近方法。该方法首先将传输线电报方程转换为常微分方程求解;其次采用Chebyshev多项式求得电报方程的扩张函数,进而获得终端电压的波动范围。相比于混沌多项式方法和蒙特卡罗(MC)法,此方法只需要输入随机参数的波动范围。针对电磁脉冲辐照下高度和间距随机变动的多导体线束进行仿真,仿真结果表明,间距基本不影响终端电压,终端电压对高度更为敏感。在计算结果基本一致的情况下,Chebyshev多项式逼近方法的计算耗时远小于MC方法。

关键词：区间分析多导体传输线不确定性蒙特卡罗法

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掩码生成动态调控弱监督视频实例分割

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光学精密工程 2023年第19期31卷 2884-2897页

作者：何自芬徐林张印辉黄滢昆明理工大学机电工程学院云南昆明650000

针对全监督视频实例分割网络训练数据高度依赖精细掩码标注,时间和人工成本过高,导致智能机器无法快速适应新场景的问题,提出一种端到端的掩码生成动态调控弱监督视频实例分割(Weakly Supervised Video Instance Segmentation,WSVIS)网... 详细信息

针对全监督视频实例分割网络训练数据高度依赖精细掩码标注,时间和人工成本过高,导致智能机器无法快速适应新场景的问题,提出一种端到端的掩码生成动态调控弱监督视频实例分割(Weakly Supervised Video Instance Segmentation,WSVIS)网络。为克服初始掩码预测层通道维度突降导致的实例激活特征丢失问题,构建多级特征融合模块,利用特征复用策略预测初始实例特征并融合相对位置信息生成初始预测掩码。然后,提出动态调控机制在通道和空间维度上建立掩码特征依赖关系,强化初始预测掩码与实例感知信息之间的动态交互。最后,网络设计二元颜色相似性生成伪亲和标签取代精细掩码标注,联合边界框与掩码一致性损失实现仅边界框标注的弱监督视频实例分割。实验结果表明,在BoxSet和YT-VIS数据集上,WSVIS网络能达到与全监督网络相近的分割精度和分割效果,同时能够满足实时推理要求,为智能机器快速适应新场景实现实时环境感知和理解提供了理论支撑和算法依据。

关键词：智能机器弱监督视频实例分割多级特征融合动态调控二元颜色相似性

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Multiple Dolomitization and Fluid Flow Events in the Precambrian Dengying Formation of Sichuan Basin, Southwestern China

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Acta Geologica Sinica(English Edition) 2018年第1期92卷 311-332页

作者： PENG Bo LI Zongxing LI Guorong LIU Chenglin ZHU Shifa ZHANG Wang ZUO yinhui GUO Yingchun WEI Xiaojie Institute of Geomechanics Chinese Academy of Geological Sciences Shandong Provincial Key Laboratory of Depositional Mineralization & Sedimentary Mineral Shandong University of Science and Technology State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of Technology College of Geosciences China University of Petroleum (Beijing)

The Precambrian Dengying Formation is a set of large-scale, extensively dolomitized, carbonate reservoirs occurring within the Sichuan Basin. Petrographic and geochemical studies reveal dolomitization was a direct result of precipitation by chemically distinct fluids occurring at different times and at different intensities. Based on this evidence, dolomitization and multiple fluid flow events are analyzed, and three types of fluid evolution models are proposed. Results of analysis show that Precambrian Dengying Formation carbonates were deposited in a restricted peritidal environment （630- 542 Ma）. A high temperature and high Mg2＋ concentration seawater was a direct result of dolomitization for the micrite matrix, and for fibrous aragonite in primary pores. Geochemical evidence shows low δ18O values of micritic dolomite varying from -1.29%o to -4.52%o PDB, abundant light rare earth elements （REEs）, and low dolomite order degrees. Microbes and meteoric water significantly altered dolomite original chemical signatures, resulting in algal micritic dolomite and the fine-grained, granular, dolosparite dolomite having very negative δ18O values. Finely crystalline cement dolomite （536.3-280 Ma） and coarsely crystalline cement dolomite have a higher crystallization degree and higher order degree. The diagenetic sequence and fluid inclusion evidence imply a linear correlation between their burial depth and homogenization temperatures, which closely resemble the temperature of generated hydrocarbon. Compared with finely crystalline dolomite, precipitation of coarsely crystalline dolomite was more affected by restricted basinal fluids. In addition, there is a trend toward a more negative δ18O value, higher salinity, higher Fe and Mn concentrations, REE-rich. Two periods of hydrothermal fluids are identified, as the exceptionally high temperatures as opposed to the temperatures of burial history, in addition to the presence of high salinity fluid inclusions. The early hydrothe

关键词： Precambrian dolomite geological fluid flow meteoric water hydrothermal activity SichuanBasin

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空间信息自适应调控和特征对齐的红外甲烷实例分割

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光学精密工程 2023年第20期31卷 3034-3049页

作者：何自芬曹辉柱张印辉庄宏昆明理工大学机电工程学院云南昆明650000

传统接触式甲烷泄漏传感器检测范围小且效率低,而结合非接触式红外热成像的机器视觉算法可实现远距离、大范围红外甲烷实例分割,对于提高甲烷检测效率及保障人员安全具有显著优势。然而远距离甲烷气体图像轮廓模糊、泄漏的甲烷气体与背... 详细信息

传统接触式甲烷泄漏传感器检测范围小且效率低,而结合非接触式红外热成像的机器视觉算法可实现远距离、大范围红外甲烷实例分割,对于提高甲烷检测效率及保障人员安全具有显著优势。然而远距离甲烷气体图像轮廓模糊、泄漏的甲烷气体与背景对比度较低且形状易受大气流动因素影响等问题限制了红外甲烷实例分割性能。针对上述问题,本文提出一种空间信息自适应调控和特征对齐的网络模型(Adaptive spatial information regulation and Feature alignment Network,AFNet)实现甲烷泄漏红外实例分割。首先,为增强模型的特征提取能力,提出自适应空间信息调控模块赋予主干网络不同尺度残差块自适应权重丰富模型提取的特征空间;其次,构建加权双向金字塔弥补特征金字塔自顶而下的特征传播方式导致的低层特征空间位置和实例边缘信息弥散丢失问题,以适应甲烷气体复杂轮廓变化下前景目标定位检测和轮廓分割需求。最后,设计原型特征对齐模块捕获长距离气体特征之间的语义关系丰富原型语义信息量以改善生成目标掩码质量提高甲烷气体分割精度。实验结果表明,本文提出的AFNet模型AP50@95,AP50定量分割精度分别达到42.42%,92.18%,相比于原始Yolact模型分割精度,分别提高9.79%,6.18%,推理速度达到36.80 frame/s,满足甲烷泄漏分割需求。实验结果验证了本文算法对红外甲烷泄漏分割的有效性和工程实用性。

关键词：红外甲烷自适应调控特征对齐特征金字塔实例分割

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Melt inclusion-olivine compositions revealed EMI-peridotite within pyroxenite-dominant mantle source of the Cenozoic Shandong basalts, eastern China

Melt inclusion-olivine compositions revealed EMI-peridotite ...

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2022年中国地球科学联合学术年会

作者： Mo Fei Hong Lubing Zhang yinhui Liu Xijun Ren Zhongyuan Xu Jifeng

Whole-rock and olivine data of the basalts have recently confirmed pyroxenitedominant mantle source for many basalts with EMI-OIB compositions, but whether the EMI component in form of pyroxenite or peridotite is still in enigma. Melt inclusions and their host olivines are assumed to be in equilibrium;their compositions therefore provide a unique opportunity to address this issue.

关键词： eastern China Melt inclusion-olivine compositions revealed EMI-peridotite within pyroxenite-dominant mantle source of the Cenozoic Shandong basalts EMI

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基于CNTs-FAgNPs基底的油中溶解糠醛SERS原位检测研究

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光子学报 2022年第9期51卷 313-322页

作者：余银辉朱文江吴苏敏周倩中广核研究院有限公司广东深圳518000

表面增强拉曼光谱具有提高油中溶解糠醛原位检测极限的可行。本文在镀金膜的氧化铟锡玻璃表面吸附碳纳米管修饰的类花形银纳米颗粒作为SERS基底,并实现了不同浓度油中溶解糠醛高灵敏原位检测。研究表明,具有电磁增强效应的纳米银花与CNT... 详细信息

表面增强拉曼光谱具有提高油中溶解糠醛原位检测极限的可行。本文在镀金膜的氧化铟锡玻璃表面吸附碳纳米管修饰的类花形银纳米颗粒作为SERS基底,并实现了不同浓度油中溶解糠醛高灵敏原位检测。研究表明,具有电磁增强效应的纳米银花与CNTs相结合而成的粗糙三维纳米结构所具有的结构间隙能有效增强拉曼信号,同时CNTs的大比表面积和强吸附能力促使基底表面形成更多的“热点”。对于变压器油中糠醛的检测下限可达7 mg/L,不同基底位置处的特征峰相对标准偏差为3.01%,本文所制备的基底具有较好的灵敏度、一致性,在原位检测变压器油中痕量老化特征物方面展现了巨大潜力。

关键词：变压器油糠醛表面增强碳纳米管原位检测

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结合RGB-DSM图像和深度学习的城市樟树树冠检测

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遥感学报 2023年第12期27卷 2762-2773页

作者：王昊夏凯杨垠晖冯海林浙江农林大学数学与计算机科学学院杭州311300 浙江省林业智能监测与信息技术研究重点实验室杭州311300 林业感知技术与智能装备国家林业局重点实验室杭州311300

当前,结合遥感图像和深度学习进行单木树冠检测已经成为一种趋势。RGB图像是检测中最常用的数据类型,但由于树冠的颜色和纹理一般比较接近,在树冠密度较高的区域,仅使用RGB图像的颜色和纹理信息难以区分不同个体的树冠。对此,本研究在RG... 详细信息

当前,结合遥感图像和深度学习进行单木树冠检测已经成为一种趋势。RGB图像是检测中最常用的数据类型,但由于树冠的颜色和纹理一般比较接近,在树冠密度较高的区域,仅使用RGB图像的颜色和纹理信息难以区分不同个体的树冠。对此,本研究在RGB图像的基础上,叠加了高程信息,以提高单木树冠检测的精度。实验采用彩色图像RGB图像和数字表面模型DSM (Digital Surface Model)作为数据源,并分别利用波段组合和双源检测网络模型两种方法结合RGB和DSM进行单木树冠检测。在前一种方法中,对RGB和DSM进行波段组合,生成GBD、RGD和RBD 3类图像,并使用这3类图像分别进行网络的训练和测试。在后一种方法中,将RGB和DSM输入双源检测网络模型,并得到检测结果。本文使用FPN-Faster-R-CNN和Yolov3进行实验,相比于RGB方案(仅使用地物的颜色和纹理信息进行单木树冠检测,是对照方案),FPN-Faster-R-CNN在GBD方案、RBD方案和双源检测网络方案中的平均精度分别上升了3.36%、2.45%和7.77%,在RGD方案中的平均精度下降了0.17%,Yolov3在GBD方案、RBD方案和双源检测网络方案中的平均精度分别上升了0.72%、0.14%和5.71%,在RGD方案中的平均精度下降了0.98%。在两个网络下,双源检测网络方案都在各方案中取得了最佳的检测结果。并且相对于RGB方案,双源检测网络方案在平均精度上的提升幅度随着树冠密度的上升呈现出上升的趋势。对比分析实验结果可知,在基于深度学习的城市单木树冠检测任务中,妥善结合并利用地物的颜色、纹理信息和高程信息有利于提高任务性能。

关键词：遥感单木树冠检测深度学习城市高程彩色图像无人机

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