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Electrical structure identification of deep shale gas reservoir in complex structural area using wide field electromagnetic method
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作者 Gu Zhi-Wen Li Yue-Gang +6 位作者 Yu Chang-Heng Zou Zhong-Ping Hu Ai-Guo Yin Xue-Bo Wang Qinag Ye Heng Tan Zhang-Kun 《Applied Geophysics》 SCIE CSCD 2024年第3期564-578,619,620,共17页
To fully exploit the technical advantages of the large-depth and high-precision artificial source electromagnetic method in the complex structure area of southern Sichuan and compensate for the shortcomings of the con... To fully exploit the technical advantages of the large-depth and high-precision artificial source electromagnetic method in the complex structure area of southern Sichuan and compensate for the shortcomings of the conventional electromagnetic method in exploration depth,precision,and accuracy,the large-depth and high-precision wide field electromagnetic method is applied to the complex structure test area of the Luochang syncline and Yuhe nose anticline in the southern Sichuan.The advantages of the wide field electromagnetic method in detecting deep,low-resistivity thin layers are demonstrated.First,on the basis of the analysis of physical property data,a geological–geoelectric model is established in the test area,and the wide field electromagnetic method is numerically simulated to analyze and evaluate the response characteristics of deep thin shale gas layers on wide field electromagnetic curves.Second,a wide field electromagnetic test is conducted in the complex structure area of southern Sichuan.After data processing and inversion imaging,apparent resistivity logging data are used for calibration to develop an apparent resistivity interpretation model suitable for the test area.On the basis of the results,the characteristics of the electrical structure change in the shallow longitudinal formation of 6 km are implemented,and the transverse electrical distribution characteristics of the deep shale gas layer are delineated.In the prediction area near the well,the subsequent data verification shows that the apparent resistivity obtained using the inversion of the wide field electromagnetic method is consistent with the trend of apparent resistivity revealed by logging,which proves that this method can effectively identify the weak response characteristics of deep shale gas formations in complex structural areas.This experiment,it is shown shows that the wide field electromagnetic method with a large depth and high precision can effectively characterize the electrical characteristics of deep,low-resistivity thin layers in complex structural areas,and a new set of low-cost evaluation technologies for shale gas target layers based on the wide field electromagnetic method is explored. 展开更多
关键词 complex tectonic area in southern Sichuan wide field electromagnetic method deep exploration shale gas reservoir electrical structure
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Geological Features of Triassic Alkaline and Subalkaline Igneous Complexes in the Yan-Liao Area 被引量:5
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作者 Mou Baolei Yan Guohan Department of Geology, Peking University, Beijing Fei Zhenbi 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 1992年第4期339-355,共17页
A number of Triassic (245-195 Ma) alkaline or subalkaline igneous complexes were discovered in theYan-liao area in the northern part of the North China platform. These complexes are all poor in SiO_2; most ofthem are ... A number of Triassic (245-195 Ma) alkaline or subalkaline igneous complexes were discovered in theYan-liao area in the northern part of the North China platform. These complexes are all poor in SiO_2; most ofthem are rich in Fe, Mg, K and P and such incompatible elements as Rb, Ba, U and Sr and REE; theinitial ^(87)Sr / ^(86)Sr ratios range from 0.7055 to 0.7057. They might have originated in the altered upper mantle.On that basis coupled with the distribution of the Triassic System and the tectonic deformation, it is suggestedthat there should have existed a tectono-magmatic belt in the area in Triassic time, which is an important mani-festation of the Indosinian movement in the area. 展开更多
关键词 Yan-Liao area alkaline or subalkaline complexes GEOCHEMISTRY
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Suitability evaluation and spatial capacity analysis for complex topography construction land area in southwest China:a case study of Tongzi county in Guizhou province
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作者 周李磊 杨华 +2 位作者 LIU Rui GUAN Dong-jie QIN Yue 《Journal of Chongqing University》 CAS 2016年第1期18-34,共17页
In the background of a new round reform and western development strategy, making suitability evaluation of construction land complex topography area in southwest China scientifically and accurately has an important gu... In the background of a new round reform and western development strategy, making suitability evaluation of construction land complex topography area in southwest China scientifically and accurately has an important guiding significance on the construction of local urban and rural development. We selected economic factor of construction, safety factor of construction, factor of the present situation of land use and ecological protection factor in Tongzi county as evaluation indexes, and ascertained the weight of each elastic indicator using the analytic hierarchy process method. By the support of GIS and RS technology, we combined the single-factor qualitative classification with the multi-factor weighted overlay analysis to make comprehensive suitability evaluation of construction land on the whole study area. And five different types of construction land were divided, namely, ‘excellent', ‘very good', ‘good', ‘moderate' and ‘poor'. The result shows that the area of ‘excellent' construction land is 30.47 km^2(0.95%), 101.46 km^2(3.16%) of ‘very good', 550.34 km^2(17.16%) of ‘good', and 664.69 km^2(20.72%) and 1 860.65 km^2(58.01%) of ‘moderate' and ‘poor', respectively. The land space bearing capacity is a population of 791 600, and the remaining population capacity is 170 900 persons. 展开更多
关键词 complex topography area suitability evaluation weighted overlay analysis space bearing capacity Tongzi county
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Function of Rural Settlement Complex Ecosystem in Mountain Area:A Case Study of Raosi Village of Zuogong County,Tibet 被引量:4
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作者 LIU Shaoquan CHEN Guojie 《Wuhan University Journal of Natural Sciences》 EI CAS 2006年第4期945-950,共6页
Using energy analysis,the quantifying evaluation and study method on production, living and ecology functions and their sustainability of rural settlement ecosystem in mountain area is established with these energy in... Using energy analysis,the quantifying evaluation and study method on production, living and ecology functions and their sustainability of rural settlement ecosystem in mountain area is established with these energy index such as export of labor and products, export of water resource, internal energy reserve, energy consumption for human living, net energy of ecosystem function and net internal reserve. Taking rural settlement Raosi Village in Hengduan Mountains as a case study, and on the basis of the synthetic research into the ecological process of the complex ecosystem, the study shows that energy costs of production, human living and ecology functions are separately taking 1.36%, 13.59% and 85. 05% of the gross ecosystem functions, and the exertions of production and human living functions are close to a high-point state on the present using level of energy in the settlement. The study also shows that the most important function of a rural settlement in mountain area is its ecological rather productive function. 展开更多
关键词 mountain area rural settlement complex ecosystem ecosystem function energy analysis
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Mesozoic Volcanic-Intrusive Complexes in the Coastal Area of Southeastern Zhejiang Province: Their Features, Petrogenesis and Distribution Pattern
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作者 Du Yangsong Wang Dezi Chen Kerong Department of Earth Sciences, Nanjing University, Nanjing 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 1991年第1期37-49,共13页
On the basis of previous studies and by means of field geological, remote sensing, petrographical,mineralogical, petrochemical and geochemical investigations, the authors studied the temporal-spatial distribu-tion of ... On the basis of previous studies and by means of field geological, remote sensing, petrographical,mineralogical, petrochemical and geochemical investigations, the authors studied the temporal-spatial distribu-tion of the regional structures, volcanic structures and products of volcanic activity in the coastal area ofsoutheastern Zhejiang. On the basis and through a systematic comparison of the products of magmatism in thearea, it is considered that there exists a compsite volcanic structural belt composed of linear and circular struc-tures and it has been demonstrated that there exist volcanic intrusive complexes--'trinity' composed of vol-canic, subvolcanic and plutonic rocks. It is suggested that the volcanic intrusive complexes in the area belong tothe typical syntexis series and that its materials were derived from a mixed source of crust and mantle. 展开更多
关键词 Petrogenesis and Distribution Pattern Their Features Mesozoic Volcanic-Intrusive complexes in the Coastal area of Southeastern Zhejiang Province
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Exploration Technology for Complex Sandstone Reservoirs in the Developed Area of Shengli Oilfield 被引量:3
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作者 Li Yang, Zhang Zonglin (Shengli Oilfield Company Ltd., SINOPEC, Shandong, Dongying 257001) 《工程科学(英文版)》 2003年第2期67-74,共8页
Jiyang depression, which is the main oil productive area of Shengli oil field, is located at the southeast part of the Bohai Bay Basin and is a terrestrial lacustrine rift subsidence basin formed in the late Mesozoic ... Jiyang depression, which is the main oil productive area of Shengli oil field, is located at the southeast part of the Bohai Bay Basin and is a terrestrial lacustrine rift subsidence basin formed in the late Mesozoic with fully developed fault system. The main hydrocarbon productive formations of this depression are the terrestrial clastic rocks of the Tertiary, which are of strong lateral variation. The complex fault reservoirs and subtle lithological reservoirs distributed extensively and are becoming the main exploration targets in recent years. The exploration and development practice in these years has formed the exploration technologies, mainly including detailed study and description of low grade faults, delineation of microstructures, facies constrained formation description and prediction and low resistivity oil bearing formation’s identification. These exploration technologies have resulted in remarkable effectiveness on the reserve and oil production increments. 展开更多
关键词 petroliferous area complex SANDSTONE reservoir LOW grade fault microstructure FACIES constrained formation prediction LOW RESISTIVITY oil bearing formation’s identification
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Huanggang Intrusive Complexin Northern Tongbai Area:Island-Arc Tectonic Environment and Its Geological Significance 被引量:3
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作者 Zhang Li Zhang Hongfei Faculty of Earth Sciences, China University of Geosciences, Wuhan 430074 《Journal of Earth Science》 SCIE CAS CSCD 1998年第3期37-41,共5页
The Huanggang intrusive complex in northern Tongbai area was formed in Early Paleozoic. It mainly consists of ultra basic, basic, intermediate and acid rocks, dominated by intermediate and basic rocks. The complex be... The Huanggang intrusive complex in northern Tongbai area was formed in Early Paleozoic. It mainly consists of ultra basic, basic, intermediate and acid rocks, dominated by intermediate and basic rocks. The complex belongs to calc alkaline series. Geochemical characteristics of major and trace elements show that the complex was derived from the fractional crystallization of co source magma. It is suggested that the complex was formed in island arc tectonic environment and was closely related to the northward subduction of the Erlangping back arc basin. Thus, the subduction of the back arc basin can induce the island arc type magmatism similar to the one formed in the setting of ocean plate subduction. 展开更多
关键词 Huanggang intrusive complex island arc tectonic environment geochemistry northern Tongbai area North Qinling.
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真地表速度建模技术在复杂山地地震资料成像中的应用 被引量:1
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作者 彭更新 顾小弟 +3 位作者 段文胜 公亭 赵锐锐 王勍 《新疆石油地质》 CAS CSCD 北大核心 2024年第2期244-252,共9页
传统的叠前深度偏移成像技术将偏移成像和静校正问题分开处理,在复杂山地资料处理中,由于地表条件复杂、近地表横向速度变化剧烈、高速层出露等问题,基于地表一致性假设的静校正处理会引起波场畸变,导致旅行时计算误差较大,影响深度偏... 传统的叠前深度偏移成像技术将偏移成像和静校正问题分开处理,在复杂山地资料处理中,由于地表条件复杂、近地表横向速度变化剧烈、高速层出露等问题,基于地表一致性假设的静校正处理会引起波场畸变,导致旅行时计算误差较大,影响深度偏移成像效果。因此,提出了一种基于真地表偏移面的全深度建模与成像技术方案,从地表高程面开始速度建模,计算旅行时,将静校正问题隐含在偏移成像过程中,在复杂山地资料处理中取得了较好的应用效果。 展开更多
关键词 复杂山地 静校正 初至层析 微测井 真地表 速度建模 波前构建 射线密度
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龙门山双复杂区表层结构调查方法研究
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作者 刘远志 刘胜 +4 位作者 黄秀举 梁勇 陈兵 王聪 张志锋 《物探化探计算技术》 CAS 2024年第3期306-314,共9页
龙门山山前带地表地质条件复杂,浅表层速度及厚度差异大,给激发、接收和静校正等工作带来较大困难。表层调查工作直接影响到地下介质成像效果。为使该地区进行的地震勘探攻关能够获取准确的静校正量数据,给井深设计提供依据,研究适合该... 龙门山山前带地表地质条件复杂,浅表层速度及厚度差异大,给激发、接收和静校正等工作带来较大困难。表层调查工作直接影响到地下介质成像效果。为使该地区进行的地震勘探攻关能够获取准确的静校正量数据,给井深设计提供依据,研究适合该区域的表层调查方法,结合地质剖面、浅震、小层析、地面微测井、钻井取心、高密度电法、三分量共振表层调查方法的工作原理,分别应用不同方法做比对,分析了不同调查方法的应用效果。通过不同表层调查的比对,分析了不同方法的适用范围,为该区选择合适的表层调查方法及方法参数选取提供依据,同时为其他地表复杂区域进行表层调查提供参考。 展开更多
关键词 双复杂区 表层结构 地质调查 浅震 小层析 微测井 钻井取心 高密度电法 三分量共振
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航空器场面滑行关键路径识别与抗毁性研究 被引量:1
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作者 康瑞 牟睿聆 +1 位作者 李凌海 周裕川 《重庆理工大学学报(自然科学)》 CAS 北大核心 2024年第2期181-188,共8页
为准确辨识机场地面滑行系统重要路段,提升拥塞风险控制能力,通过构建机场活动区交通网络模型,从节点近邻、全局路径、特征向量和网络位置4个角度挖掘关键节点,提出改进介数中心性算法,得到节点重要度排序样例集。综合鲁棒性、性能下降... 为准确辨识机场地面滑行系统重要路段,提升拥塞风险控制能力,通过构建机场活动区交通网络模型,从节点近邻、全局路径、特征向量和网络位置4个角度挖掘关键节点,提出改进介数中心性算法,得到节点重要度排序样例集。综合鲁棒性、性能下降速率以及单位时间性能损失等网络性能指标,通过抗毁性实验分析性能变化曲线,确定综合抗毁性衡量指标ki测度下复杂网络节点重要度排序结果,实现关键路径识别。以华北某机场为例开展实证研究,结果表明:机场活动区交通网络具有较小的聚类系数,在随机攻击下抗毁性较强,基于度中心性的节点序列为所有样例中最满足实际运行中的关键路段,管制员可实施重点路段流量调配,抑制冲突。 展开更多
关键词 机场活动区 复杂网络 节点重要度 抗毁性
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Dissolved Organic Matter-Complexed Iron in Two Rivers with Different Types of Soils in Watershed Area
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作者 Kunio Moroi Nobuyoshi Isamoto Akira Watanabe 《International Journal of Geosciences》 2012年第4期710-718,共9页
Concentrations of dissolved organic matter (DOM), dissolved humic substances (DHS), and DOM-complexed Fe (DOM-Fe) in Yamakuni and Oita Rivers, Japan, of which headstream is near in location, flow pass length is simila... Concentrations of dissolved organic matter (DOM), dissolved humic substances (DHS), and DOM-complexed Fe (DOM-Fe) in Yamakuni and Oita Rivers, Japan, of which headstream is near in location, flow pass length is similar, but watershed soil type differs, were investigated. Soil organic matter level was higher in black Andosols distributing 67% of the watershed area of the Oita River than in Cambisols covering 90% of the watershed area of Yamakuni River. However, the DOM concentration in the Yamakuni River (0.44 - 1.62 mg·C·L-1) tended to be higher than that in the Oita River (0.13 - 1.37 mg·C·L-1). DHS accounted for 49% - 80% of DOM in both rivers. Fe and DOM-Fe concentrations showed a trend to increase toward downstream but decrease at the estuary in both rivers. DOM-Fe accounted for 26% - 90% and 55% - 93% of dissolved Fe in the Yamakuni and Oita Rivers, respectively. Correlation analysis suggested that the DOM-Fe concentration in the river water was controlled by the capacity for supplying Fe ions rather than that for supplying DOM. Although the ability to form a complex with Fe was suggested to be greater in the DOM in the Oita River than that in the Yamakuni River, the DOM-Fe concentration at the estuary was similar in the two rivers. Thus, the effect of soil organic matter level in the watershed area on the supply of Fe or DOM-Fe to the estuarine ecosystem was not significant. 展开更多
关键词 Dissolved Organic Matter (DOM) Dissolved HUMIC Substances (DHS) DOM-complexed FE (DOM-Fe) WATERSHED area
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The Influence of Land-Use on Water Quality in a Tropical Coastal Area: Case Study of the Keta Lagoon Complex, Ghana, West Africa
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作者 Angela M. Lamptey Patrick K. Ofori-Danson +2 位作者 Stephen Abbenney-Mickson Henrik Breuning-Madsen Mark K. Abekoe 《Open Journal of Modern Hydrology》 2013年第4期188-195,共8页
The Keta Lagoon and its catchment areas in Ghana are influenced by intensive agriculture and the use of agro-chemicals. It has therefore, become necessary to assess the quality of water in the lagoon and the surroundi... The Keta Lagoon and its catchment areas in Ghana are influenced by intensive agriculture and the use of agro-chemicals. It has therefore, become necessary to assess the quality of water in the lagoon and the surrounding fresh water aquifers. In this study, a water quality index (WQI), indicating the water quality has been adopted. The WQI was determined on a basis of various physico-chemical parameters like pH, conductivity, turbidity, dissolved oxygen, calcium, magnesium, chloride, nitrates, ammonium and sodium. The index was used both for tracking changes at one site over time, and for comparisons among sites. The WQI was also employed to wells used for irrigation on farms along the Keta Sand Spit as well as that of the Keta Lagoon Complex and its surrounding floodplains, in order to ascertain the quality of water for public and livestock consumption, irrigation, recreation and other purposes. The WQI of the wells, Keta lagoon and its floodplains showed various degrees of poor water quality and therefore considered unsuitable for drinking and recreation. By WHO standards, this calls for intensive physical and chemical treatment of the water for human consumption. 展开更多
关键词 TROPICAL COASTAL area Keta LAGOON complex Floodplains Water Quality Index WHO Standards PHYSICO-CHEMICAL Parameters Ghana
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Logging interpretation method for reservoirs with complex pore structure in Mesozoic-Cenozoic faulted basin around Daqing exploration area
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作者 YUE Shanshan FAN Xiaomin HUANG Buzhou 《Global Geology》 2019年第3期209-216,共8页
In Mesozoic-Cenozoic faulted basin in the periphery of Daqing exploration area, the clastic reservoirs mainly consist of siltstone and gravel-bearing sandstone. The electrical conductivity of the reservoirs is complic... In Mesozoic-Cenozoic faulted basin in the periphery of Daqing exploration area, the clastic reservoirs mainly consist of siltstone and gravel-bearing sandstone. The electrical conductivity of the reservoirs is complicated due to the complex pore structures, which cannot be accurately interpreted with commonly used model. In order to solve the problem, a three-water model has been applied in this study based on in-depth analysis of the conductive mechanism of rocks in the explored area, and favorable application results are achieved. 展开更多
关键词 DAQING exploration area MESOZOIC-CENOZOIC faulted BASIN complex pore structures CEMENTATION INDEX saturation INDEX
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基于改进YOLOv8的露天矿区行车障碍物检测
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作者 顾清华 周琼 王丹 《黄金科学技术》 CSCD 北大核心 2024年第2期345-355,共11页
露天矿区场景复杂,行车障碍物检测受扬尘和颗粒物等粉尘噪声干扰严重,难以准确识别障碍物,尤其是光线较差的夜间,不利于做出正确决策,从而影响无人作业的安全性和整体效率。针对以上问题,提出了一种基于YOLOv8n模型的露天矿区行车障碍... 露天矿区场景复杂,行车障碍物检测受扬尘和颗粒物等粉尘噪声干扰严重,难以准确识别障碍物,尤其是光线较差的夜间,不利于做出正确决策,从而影响无人作业的安全性和整体效率。针对以上问题,提出了一种基于YOLOv8n模型的露天矿区行车障碍物检测算法YOLOv8n-Enhanced。该算法主要从3个方面进行了改进,具体包括:首先,针对受粉尘噪声干扰严重和夜间光线不足的问题,提出了C2fCA模块结构,提高了模型特征提取能力;其次,使用轻量级卷积技术GSConv和VoV-GSCSP模块,减轻模型复杂性,实现检测器更高的计算成本效益;最后,使用WIOU损失函数,提高了模型泛化能力。试验结果表明:改进算法在保持实时性的前提下,可将YOLOv8n的平均精度(mean Average Precision,mAP)分别提高1.8%和2.6%,实现白天与夜间场景下不同尺度的障碍物识别。 展开更多
关键词 露天矿区 无人驾驶 障碍物检测 YOLOv8检测模型 矿区复杂场景
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基于LSTM的机场飞行区活动目标潜在冲突预测 被引量:1
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作者 王兴隆 尹昊 贺敏 《北京航空航天大学学报》 EI CAS CSCD 北大核心 2024年第6期1850-1860,共11页
针对机场飞行区冲突不断的问题,提出一种基于长短期记忆(LSTM)网络预测机场飞行区活动目标潜在冲突的方法。根据复杂网络理论,以航空器和车辆2类活动目标为研究对象,建立飞行区活动目标网络,设置网络动态演化模型,输入运行数据计算多个... 针对机场飞行区冲突不断的问题,提出一种基于长短期记忆(LSTM)网络预测机场飞行区活动目标潜在冲突的方法。根据复杂网络理论,以航空器和车辆2类活动目标为研究对象,建立飞行区活动目标网络,设置网络动态演化模型,输入运行数据计算多个网络特征指标,对指标时间序列进行主成分分析,拟合成潜在冲突指数;利用Keras框架搭建LSTM网络模型,将指标时间序列输入LSTM网络进行训练和预测,并与其他预测方法对比;用西安咸阳机场实际运行数据进行实验,将预测值与真实值进行对比,各项指标预测均方误差分别为1.608%、13.126%、0.072%、0.004%、0.014%。结果表明:通过建立飞行区活动目标网络模型,可以用网络特征指标从不同角度刻画潜在冲突;LSTM网络可以有效预测飞行区活动目标网络的潜在冲突,提醒相关人员预防冲突发生,降低冲突概率。 展开更多
关键词 长短期记忆 飞行区 冲突预测 复杂网络 主成分分析
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基于复杂网络的多机场航班延误传播分析
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作者 张兆宁 孟凡淑 《科学技术与工程》 北大核心 2024年第18期7913-7920,共8页
为了研究多机场间航班延误的传播机理,将机场作为节点,航线作为边构成复杂网络。通过分析传染病传播过程与机场间航班延误传播过程的相似性,借鉴经典传染病传播模型(classical infectious disease transmission,SIR)的思想,并考虑不同... 为了研究多机场间航班延误的传播机理,将机场作为节点,航线作为边构成复杂网络。通过分析传染病传播过程与机场间航班延误传播过程的相似性,借鉴经典传染病传播模型(classical infectious disease transmission,SIR)的思想,并考虑不同机场间延误传播的差异,提出机场重要度的概念,构建了多机场航班延误传播模型。对多机场航班延误传播过程的仿真结果表明:在多机场网络中,初始延误机场不同以及机场重要度不同,延误传播效果不同,但延误传播规律保持不变。对网络中重要机场进行相应管控会使发生延误的机场数量峰值下降,且按照介数值确定需进行管控的重要机场,网络中发生延误机场数量峰值下降率最大。可见,该模型可以客观反映多机场间航班延误传播的动态过程和变化规律,并可为延误的预防和恢复提供理论依据。 展开更多
关键词 多机场 复杂网络 大面积航班延误 延误传播
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鄂西渝东地区中-新生代构造变形及其对油气保存的制约
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作者 易积正 包汉勇 +3 位作者 李以严 张道洪 秦军 谢洪光 《石油与天然气地质》 EI CAS CSCD 北大核心 2024年第3期684-695,共12页
油气成藏跟构造息息相关,研究构造及油气保存条件在油气勘探中具有重要作用。研究了鄂西渝东地区断裂发育特征及构造样式的差异分布,划分了构造单元,描述了断裂、构造类型及演化,分析了构造对保存条件的影响。研究表明:鄂西渝东中扬子... 油气成藏跟构造息息相关,研究构造及油气保存条件在油气勘探中具有重要作用。研究了鄂西渝东地区断裂发育特征及构造样式的差异分布,划分了构造单元,描述了断裂、构造类型及演化,分析了构造对保存条件的影响。研究表明:鄂西渝东中扬子地块南部构造带西部中生代以来经历了多期盆-山耦合构造作用,构造变形强度大,发育基底卷入型和盖层滑脱型断层。提出了该复杂构造区油气保存条件评价的方法。评价认为齐岳山断层以西保存条件好于东侧,以万县复向斜的保存条件最好,其次为石柱复向斜。湘鄂西褶皱带以利川构造带保存条件最好,其次为恩施构造带,南北镇-桑植石门构造带最差。该研究成果在红星地区、宜恩地区页岩气、致密气、岩溶体油气勘探中的应用取得了较好的效果。 展开更多
关键词 保存条件 构造样式 复杂构造 中-新生代 红星地区 鄂西渝东
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基于GIS技术的复杂山区道路选线优化方法探讨
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作者 敬麒麟 吕玉海 苏明 《科技资讯》 2024年第12期110-112,共3页
针对复杂山区道路选线的优化问题,提出以地理信息系统技术为基础,综合考虑地形特征和环境约束等因素,进行道路选线优化的方法,对道路网络模型进行地形参数的获取与处理,对道路节点及其连通性进行分析;在此基础上,设计多条件权衡算法并... 针对复杂山区道路选线的优化问题,提出以地理信息系统技术为基础,综合考虑地形特征和环境约束等因素,进行道路选线优化的方法,对道路网络模型进行地形参数的获取与处理,对道路节点及其连通性进行分析;在此基础上,设计多条件权衡算法并有效处理约束条件,以达到道路选线优化的目的。此种方法在实际应用中得到验证并取得了较好的效果。 展开更多
关键词 地理信息系统技术 复杂山区道路 选线道路节点 地理信息系统
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上海市中心区居住空间组织网络模式及测度——整合物质和社会空间的复杂网络分析
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作者 杨帆 王佳音 《上海城市规划》 北大核心 2024年第4期85-93,共9页
住宅区是城市建成地区的主要功能空间。选择上海市中心城为研究范围,采用复杂网络理论和分析方法,以住宅区为网络“节点”,以空间邻近性和社会互动为网络“连边”,建构居住空间网络,分析测度居住区“度”分布,检验居住空间网络的鲁棒性... 住宅区是城市建成地区的主要功能空间。选择上海市中心城为研究范围,采用复杂网络理论和分析方法,以住宅区为网络“节点”,以空间邻近性和社会互动为网络“连边”,建构居住空间网络,分析测度居住区“度”分布,检验居住空间网络的鲁棒性,并识别网络“社团”。发现城市居住空间网络稳定性意味着和谐、顺畅的社会交往和信息传递,其中大“度”节点住宅区发挥着重要作用,应予以重点关注。居住空间网络“社团”识别的结果对解读城市地域认同有借鉴意义。结论为建立“物质空间”和“社会空间”相融合的城市住宅区空间结构研究提供了新的思路和方法,同时对大都市建成区单元规划和空间更新有借鉴意义。 展开更多
关键词 居住空间网络 住宅区 空间肌理 复杂网络分析 中心城区 上海
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基于地震相识别的相控储层预测技术及应用——以魏岗-张店结合部为例
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作者 张晓亮 《石油地质与工程》 CAS 2024年第4期44-51,共8页
随着勘探开发不断深入,南阳凹陷的勘探开发方向由魏岗、张店主体区逐渐向背斜翼部转移,滚动勘探目标也由构造油藏向复杂岩性油藏转变。由于魏岗-张店结合部构造较为复杂且地震资料分辨率较低,导致储层预测多解性强,为了准确识别不同岩... 随着勘探开发不断深入,南阳凹陷的勘探开发方向由魏岗、张店主体区逐渐向背斜翼部转移,滚动勘探目标也由构造油藏向复杂岩性油藏转变。由于魏岗-张店结合部构造较为复杂且地震资料分辨率较低,导致储层预测多解性强,为了准确识别不同岩性体和进行储层预测,以核桃园组核二Ⅱ亚段为例,通过开展地震相识别及多属性融合分析,指出魏岗-张店结合部由北向南发育的水下分流河道是储层发育的有利相带;并在此基础上,通过岩性反演提高了地震分辨率,实现了5 m以下厚度砂体的精细刻画。可为魏岗-张店结合部勘探开发的深化提供技术支撑。 展开更多
关键词 魏岗-张店结合部 复杂岩性油藏 地震相 地震属性
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