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Structural Characteristics and their Significance for Hydrocarbon Accumulation in the Northern Slope of the Central Sichuan Paleo-uplift 被引量:4
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作者 TIAN Xingwang LIU Guangdi +13 位作者 LUO Bing YANG Yu WEN Long ZHANG Benjian CHEN Xiao SU Guiping SONG Zezhang PENG Hanlin ZHOU Gang YAN Wei YANG Dailin WANG Yunlong SUN Yiting DOU Shuang 《Acta Geologica Sinica(English Edition)》 SCIE CAS CSCD 2022年第4期1451-1470,共20页
Based on 2D and 3D seismic data,the latest drilling data and field outcrop data of the northern slope of the Central Sichuan paleo-uplift,the structural analysis method is used to analyze unconformity development char... Based on 2D and 3D seismic data,the latest drilling data and field outcrop data of the northern slope of the Central Sichuan paleo-uplift,the structural analysis method is used to analyze unconformity development characteristics and fault characteristics during the key structural transformation period,discussing the influence of the structural characteristics on the hydrocarbon accumulation of deep carbonate rocks.The results show that:(1)The two key unconformities of the Tongwan and Caledonian periods were primarily developed in deep carbonate rocks.Firstly,Tongwan’s unconformities are characterized by regional disconformities between the second and third members of the Dengying Formation,the top formation of the Sinian and the lower Cambrian,strips of which zigzag through the north and south sides of the study area.Secondly,the Caledonian unconformity is characterized by a regional unconformable contact between the lower Permian and the ower Paleozoic strata.From NE to SW,the age of the strata,which were subject to erosion,changes from new to old,the denudation distribution showing as a nose-shaped structure which inclines towards the ENE.(2)Boundary fault and transtensional strike-slip faults developed in the Sinian to Paleozoic strata.In profile,there are three types of structural styles:steep and erect,flower structures,’Y’and reversed’Y’type faults.In plane view,the Sinian developed extensional boundary faults extending in an almost NS direction,strike-slip faults developing and extending linearly in approximately EW,WNW and NE strikes in the Cambrian,with characteristically more in the south and less in the north.(3)The faults in the northern slope show obvious zonal deformations in transverse view as well as significant stages and stratified activity in a longitudinal direction.Among them,the activity of faults in the Sinian was the strongest,followed by the activity in the Cambrian period,the activity intensity of faults in the Permian period being the weakest.This fault activity can be divided into four periods:Sinian,Cambrian-Permian,the early Indosinian period and the late Indosinian-Himalayan period,the transtensional strikeslip faults being the products of oblique extensions of pre-existing weak zones in the Xingkai and Emei taphrogenesis,with a particular inheritance in the main faults.(4)Combined with hydrocarbon accumulation factors,it is considered that the epigenetic karstification of the Tongwan and Caledonian unconformities in the northern slope controlled the formation and distribution of carbonate karst reservoirs over a large area,also acting as a good pathway for oil and gas migration.The extensional faults developed at the margin of the NS trending rift,controlling the sag-platform sedimentary pattern in the Dengying Formation of the Sinian.Strike-slip faults in NE,WNW and ENE directions may control the microgeomorphological pattern inside the platform and intensify the differential distribution of grain beach facies.The multi-stage hereditary activity of strike-slip faults not only improved the porosity and permeability of the reservoirs,but also acted as the main channel of oil and gas migration,providing favorable conditions for the development of the current multi-layer gasbearing scenario in the northern slope of the Central Sichuan Basin. 展开更多
关键词 northern slope of paleo-uplift UNCONFORMITY structural characteristics hydrocarbon accumulation Central Sichuan paleo-uplift Sichuan Basin
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Natural gas geology and exploration direction of the Cambrian Lower Canglangpu Member in central Sichuan paleo-uplift,Sichuan Basin,SW China 被引量:2
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作者 YAN Wei LUO Bing +6 位作者 ZHOU Gang CHEN Youlian ZHONG Yuan LI Kunyu ZHOU Hongfei ZHAO Like HE Yuan 《Petroleum Exploration and Development》 CSCD 2021年第2期337-353,共17页
Based on drilling data of JT1 and CS1,outcrop profiles and seismic data,the sedimentary pattern,space configuration of source-reservoir-cap combinations and paleouplift evolution characteristics of the Cambrian Lower ... Based on drilling data of JT1 and CS1,outcrop profiles and seismic data,the sedimentary pattern,space configuration of source-reservoir-cap combinations and paleouplift evolution characteristics of the Cambrian Lower Canglangpu Member in the central Sichuan paleouplift have been investigated to determine the favorable exploration zones.Controlled by Deyang-Anyue rift,the Lower Canglangpu Member features differential characteristics from east to west in sedimentary framework.In the west side of the Deyang-Anyue rift,this member is composed of clastic sediments,while in the east side of the Deyang-Anyue rift,it is fresh water shelf sediments,with grain beaches occurring along edges of the depressions,shelf and lagoon.Among the beaches,the dolomitic ones are mainly distributed around the depression edge and in the north of the lagoon.The beach sediments could become high quality reservoirs under the effect of karstification.Underlying the Lower Canglangpu Member is the widespread source rock of the Qiongzhusi Formation,so oil and gas generated by the Qiongzhusi Formation source rock can directly charge into the beach reservoirs.The sandy mudstone of the Upper Canglangpu Member can serve as the caprock of the Lower Canglangpu Member reservoir.The dolomitic beaches are located at the higher part of the paleo-uplift during the main accumulation period,with good hydrocarbon accumulation elements.Blocks PT1-CS1,HT1-GT2 and east GT2 are favorable exploration zones. 展开更多
关键词 Sichuan Basin central Sichuan paleo-uplift CAMBRIAN Canglangpu Formation DOLOMITE geological characteristics favorable zone
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Structural patterns of fault damage zones in carbonate rocks and their influences on petroleum accumulation in Tazhong Paleo-uplift, Tarim Basin, NW China 被引量:4
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作者 NENG Yuan YANG Haijun DENG Xingliang 《Petroleum Exploration and Development》 2018年第1期43-54,共12页
Based on the outcrop survey,3D seismic data interpretation,drilling data analysis,the structural patterns and distribution of fault damage zones in carbonate strata of Tazhong Paleo-uplift were established to reveal t... Based on the outcrop survey,3D seismic data interpretation,drilling data analysis,the structural patterns and distribution of fault damage zones in carbonate strata of Tazhong Paleo-uplift were established to reveal the oil and gas enrichment law in the fault damage zones.The following findings were reached:(1)Through the filed survey,the fault damage zone system consists of fault core,damage zone with branch fault and fracture network.Affected by the active nature of the major faults,the fault damage zones differ in planar pattern and scale along the major faults.(2)3D seismic profiles reveal that there are three types of fault damage zones in carbonate strata in Tazhong paleo-uplift,strike-slip fault damage zones,thrust fault damage zones and superimposed fault damage zones.Featuring3 flowers and 3 root belts in vertical,the strike-slip fault damage zone can be subdivided into linear type,oblique type,feather type and horsetail type in plane.Thrust fault damage zones can be further divided into fault anticline type,anticline type and slope type.As the superimposition result of the above two kinds of fault damage zones,superimposed fault damage zones appear in three patterns,intersect type,encompassment type and penetrating type.(3)Cores from wells and geochemical data show oil and gas may migrate along the major fault and laterally.The feather type in strike-slip fault system,fault anticline type in thrust fault damage zone and intersect type in superimposed fault damage zone are possible sites for high production and efficiency wells. 展开更多
关键词 TAZHONG paleo-uplift CARBONATE STRATA fault damage zone structural pattern high production well area
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Influencing factors and prevention measures of casing deformation in deep shale gas wells in Luzhou block,southern Sichuan Basin,SW China 被引量:1
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作者 HAN Lingling LI Xizhe +5 位作者 LIU Zhaoyi DUAN Guifu WAN Yujin GUO Xiaolong GUO Wei CUI Yue 《Petroleum Exploration and Development》 SCIE 2023年第4期979-988,共10页
Based on structural distribution and fault characteristics of the Luzhou block,southern Sichuan Basin,as well as microseismic,well logging and in-situ stress data,the casing deformation behaviors of deep shale gas wel... Based on structural distribution and fault characteristics of the Luzhou block,southern Sichuan Basin,as well as microseismic,well logging and in-situ stress data,the casing deformation behaviors of deep shale gas wells are summarized,and the casing deformation mechanism and influencing factors are identified.Then,the risk assessment chart of casing deformation is plotted,and the measures for preventing and controlling casing deformation are proposed.Fracturing-activated fault slip is a main factor causing the casing deformation in deep shale gas wells in the Luzhou block.In the working area,the approximate fracture angle is primarily 10°-50°,accounting for 65.34%,and the critical pore pressure increment for fault-activation is 6.05-9.71 MPa.The casing deformation caused by geological factors can be prevented/controlled by avoiding the faults at risk and deploying wells in areas with low value of stress factor.The casing deformation caused by engineering factors can be prevented/controlled by:(1)keeping wells avoid faults with risks of activation and slippage,or deploying wells in areas far from the faulting center if such avoidance is impossible;(2)optimizing the wellbore parameters,for example,adjusting the wellbore orientation to reduce the shear force on casing to a certain extent and thus mitigate the casing deformation;(3)optimizing the casing program to ensure that the curvature radius of the curved section of horizontal well is greater than 200 m while the drilling rate of high-quality reservoirs is not impaired;(4)optimizing the fracturing parameters,for example,increasing the evasive distance,lowering the single-operation pressure,and increasing the stage length,which can help effectively reduce the risk of casing deformation. 展开更多
关键词 Sichuan Basin luzhou block shale gas well casing deformation mechanism fault activation risk assessment prevention measure
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Distribution, evolution and structural properties of Wushenqi paleo-uplift in Ordos Basin, NW China
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作者 MAO Danfeng HE Dengfa +5 位作者 BAO Hongping WEI Liubin XU Yanhua CHENG Xiang GOU Junyi WU Saijun 《Petroleum Exploration and Development》 SCIE 2023年第4期865-877,共13页
This paper depicts the distribution of the Wushenqi paleo-uplift in the Ordos Basin by using the latest drilling and seismic data, and analyzes the tectonic evolution of the paleo-uplift with the support of Bischke cu... This paper depicts the distribution of the Wushenqi paleo-uplift in the Ordos Basin by using the latest drilling and seismic data, and analyzes the tectonic evolution of the paleo-uplift with the support of Bischke curve and balanced section. The compressional Wushenqi paleo-uplift which developed in the Early Caledonian orogeny(Huaiyuan orogeny) is approximately a ellipse extending in S-N direction. Its long axis is about 194 km and short axis is about 55-94 km in nearly W-E direction. The denudation thickness and area of the Cambrian in the core are 170-196 m and 11 298 km^(2), respectively. It was mainly formed during the Huaiyuan orogeny according to the chronostratigraphic framework. It was in the embryonic stage in the Middle-Late Cambrian, denuded after developed obviously at the end of Late Cambrian. The paleo-uplift of the 3rd member of the Ordovician Majiagou Formation was reactivated and reduced in area. In the sedimentary period of the Ma 4 Member-pre-Carboniferous, the paleo-uplift experienced non-uniform uplift and denudation. It entered the stable period of burial and preservation in the Carboniferous and later period. The Wushenqi paleo-uplift was formed on the weak area of the basement and tectonic belts, into an compressional structure with irregular morphology, under the control of the non-coaxial compression in the south and north and the stress transmitted by the uplift in the basin. The Wushenqi paleo-uplift has a controlling effect on the sedimentary reservoirs and hydrocarbon accumulation. 展开更多
关键词 Ordos Basin Wushenqi paleo-uplift Ordovician Majiagou Formation UNCONFORMITY Caledonian orogeny tectonic evolution
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Migration of paleo-uplift in southwestern Tarim Basin and its implications for orogenesis and reservoir development, NW China
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作者 YAN Jiakai CHEN Hanlin +4 位作者 CHENG Xiaogan CHEN Yongquan ZENG Changmin CHEN Cai WU Hongxiang 《Petroleum Exploration and Development》 2023年第1期99-110,共12页
Based on well horizon calibration,the typical seismic profiles in southwestern Tarim Basin were interpreted systematically,regional geological sections were established,and the regional denudation thickness of each te... Based on well horizon calibration,the typical seismic profiles in southwestern Tarim Basin were interpreted systematically,regional geological sections were established,and the regional denudation thickness of each tectonic period was restored.On this basis,the plane morphology maps of ancient structures of the Cambrian pre-salt dolomites in different periods were compiled,and the spatial distribution,development,evolution and migration of paleo-uplift in the late Early Paleozoic were analyzed.In the late Early Paleozoic,there existed a unified regional paleo-uplift widely distributed in southwestern Tarim Basin,which is called the southwestern Tarim plaeo-uplift.The“Tarim SW paleo-uplift”and“Hetian paleo-uplift”proposed in previous literatures are not independent,but the result of the spatio-temporal migration and evolution of the southwestern Tarim paleo-uplift identified in this paper.The southwestern Tarim paleo-uplift emerged at the end of Middle Ordovician,and took its initial shape with increased amplitude in the Late Ordovician.During the Silurian,the southwestern Tarim paleo-uplift rose steadily and expanded rapidly to the east,incorporating Pishan-Hetian and other areas,with the structural high locating in the Pishan-Hetian area.During the Devonian,the southwestern Tarim paleo-uplift began to shrink gradually,to a limited range in the Pishan-Hetian area in the southern part of the basin.During the Carboniferous,the southwestern Tarim paleo-uplift became an underwater uplift,that is,the paleo-uplift gradually died out.The southwestern Tarim paleo-uplift belongs to the forebulge of the southwestern Tarim foreland basin in the late Early Paleozoic,and its formation and evolution are related to the early Paleozoic orogeny of the West Kunlun orogenic belt in the south of the Tarim Basin.The migration of the southwestern Tarim paleo-uplift from the northwestern part of the southwestern Tarim Basin to the Pishan-Hetian area indicates the early Paleozoic orogenic process of the West Kunlun orogenic belt,which started in the western section at the end of Middle Ordovician and extended from west to east in a“scissor”style.The migration and evolution of the southwestern Tarim paleo-uplift controlled the development of unconformities at the end of Middle Ordovician,the end of Late Ordovician,and the end of Middle Devonian,and the spatial distribution of dissolved fracture-cave reservoirs in weathered crust below the unconformities in the southwest of Tarim Basin.The migration of the structural high of the southwestern Tarim paleo-uplift also played an important role in controlling the development of dissolved fracture-cave reservoirs in weathered crust. 展开更多
关键词 paleo-uplift DENUDATION planar morphology of ancient structure spatio-temporal migration Early Paleozoic orogeny southwestern Tarim Basin
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Luzhou Cultural Tourism Landscape Design under the Background of Regional Culture
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作者 ZHAO Liang XIAO Wangqun REN Yao 《Journal of Landscape Research》 2020年第5期106-108,共3页
With the gradual recovery of local economy after the epidemic,restarting the development of tourist attractions and promoting regional characteristic tourism projects have become an inevitable choice to drive the rapi... With the gradual recovery of local economy after the epidemic,restarting the development of tourist attractions and promoting regional characteristic tourism projects have become an inevitable choice to drive the rapid development of local economy.Nowadays,with the obvious convergence of tourist attractions,how to highlight local cultural characteristics,show cultural features,and inherit the spirit of regional culture has become an important issue that has to be considered.In this article,under the guidance of regional cultural theory,according to the regional characteristics of Luzhou culture,the types of local culture with regional characteristics were introduced,and the general problems of Luzhou cultural tourism landscape were analyzed.Meanwhile,the design strategies of Luzhou cultural tourism landscape under the background of regional culture were discussed to provide ideas and reference for Luzhou cultural tourism landscape design in the future. 展开更多
关键词 Regional culture luzhou culture TOURISM Landscape design
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Luzhou Old Cellar Co. Ltd.
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《China's Foreign Trade》 1997年第6期34-34,共1页
The Luzhou Old Cellar Co. Ltd. is a state-owned large wine-making enterprise. It has an annual production capacity of 20,000 tons of Da Qu Wine, total assets of RMB820 million and annual pre-tax profits of over RMB420... The Luzhou Old Cellar Co. Ltd. is a state-owned large wine-making enterprise. It has an annual production capacity of 20,000 tons of Da Qu Wine, total assets of RMB820 million and annual pre-tax profits of over RMB420 million. It owns 14 wholly-owned, holding and stock-participating 展开更多
关键词 luzhou Old Cellar Co LTD
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Current Situations and Recommendations for Development of Agricultural Sci-Tech Park District of Luzhou City
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作者 Guoping DU Xiangjuan ZHU +2 位作者 Qiqun XIONG Min NI Yuancai SHUI 《Asian Agricultural Research》 2021年第11期21-26,31,共7页
The agricultural science and technology park is a demonstration carrier for the assembly and integration of agricultural technology,the transformation of scientific and technological achievements and the modern agricu... The agricultural science and technology park is a demonstration carrier for the assembly and integration of agricultural technology,the transformation of scientific and technological achievements and the modern agricultural production. It is an inevitable choice and important way to realize the transformation from traditional agriculture to modern agriculture. This paper reviewed the construction background,functional characteristics and development history of agricultural science and technology parks. It analyzed the current development situations of the provincial agricultural science and technology parks in Jiangyang District,Luzhou City of Sichuan Province. Then,it summarized its experience in park construction and compared with surrounding national and provincial agricultural science and technology parks. It found existing problems including insufficient industry-university-research integration,low level of agricultural intensification,weak functions of public service platforms and brand effect,and insufficient exploration of tourism resources. In view of these problems,it came up with recommendations for development of agricultural Sci-Tech Park District of Luzhou City,including gathering scientific and technological resources,enhancing scientific and technological support,strengthening the high-quality development of the park economy,and building a national 4 A-level excellent scenic spot. 展开更多
关键词 Agricultural Science and Technology Park(ASTP) Current development situations Problems RECOMMENDATIONS Jiangyang District of luzhou City
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泸州地区五峰组——龙马溪组页岩气成藏特征 被引量:2
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作者 刘洪林 王怀厂 李晓波 《新疆石油地质》 CAS CSCD 北大核心 2024年第1期19-26,共8页
为寻找四川盆地泸州地区五峰组—龙马溪组页岩气有利区,在开展流体包裹体检测、页岩微观孔隙观测、气泡变孔模拟等研究基础上,查明了泸州地区构造埋藏过程和生烃热演化过程,总结了泸州地区页岩气成藏特征和成藏规律。研究结果表明:泸州... 为寻找四川盆地泸州地区五峰组—龙马溪组页岩气有利区,在开展流体包裹体检测、页岩微观孔隙观测、气泡变孔模拟等研究基础上,查明了泸州地区构造埋藏过程和生烃热演化过程,总结了泸州地区页岩气成藏特征和成藏规律。研究结果表明:泸州地区五峰组—龙马溪组富有机质页岩厚度大,在二叠纪—早三叠世生油,经历了中三叠世和燕山运动期—喜马拉雅运动期2次构造抬升,中三叠世抬升幅度有限,未导致大规模烃散失,燕山运动期—喜马拉雅运动期构造抬升晚于川东南且幅度小,利于页岩气保存;泸州地区五峰组—龙马溪组页岩有机孔发育,是由于中三叠世隆升时间短,强度小,未发生大规模排烃,大量液态烃保留在储集层中,有利于后期有机孔的大量形成,同时在晚三叠世—中白垩世,地层深埋发生液态烃裂解产气,地层广泛超压,有利于有机孔的后期保存;泸州地区三叠纪隆升虽然时间短、强度小,但是从模拟实验结果来看,可以导致原油稠化和气孔形成,对页岩气富集成藏有利。因此,发生在印支运动期的泸州地区的隆升造成原油稠化,有利于页岩气富集成藏;泸州地区地层抬升时间晚,页岩气散失时间短,低角度层理缝发育,而纵向裂缝少,均有利于形成超压页岩气富集区。提出的泸州地区五峰组—龙马溪组页岩富集成藏规律,对于指导其他同类型油气勘探具有借鉴意义。 展开更多
关键词 四川盆地 泸州地区 五峰组 龙马溪组 页岩储集层 页岩气 孔隙成因 隆升 成藏
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不同构造单元页岩孔隙结构差异及其油气地质意义——以四川盆地泸州地区深层页岩为例 被引量:1
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作者 唐洪明 刘贤 +5 位作者 陈洋 于魏铭 赵宁 石学文 王猛 廖纪佳 《天然气工业》 EI CAS CSCD 北大核心 2024年第5期16-28,共13页
不同构造单元页岩储层品质、含气性差异明显,构造改造作用对页岩气勘探开发具有控制作用,但关于深层页岩气的构造控制作用机理研究较少,相关认识尚不明确,制约了深层页岩气的勘探开发。为此,通过“岩心—薄片—扫描电镜”多尺度观察、... 不同构造单元页岩储层品质、含气性差异明显,构造改造作用对页岩气勘探开发具有控制作用,但关于深层页岩气的构造控制作用机理研究较少,相关认识尚不明确,制约了深层页岩气的勘探开发。为此,通过“岩心—薄片—扫描电镜”多尺度观察、全岩矿物X射线衍射分析、核磁共振等技术手段,对比分析了四川盆地南部泸州地区不同构造单元上奥陶统五峰组—下志留统龙马溪组深层页岩孔隙结构和储层特征的差异,探讨了不同构造单元页岩孔隙结构差异与储层品质的耦合关系,明确了页岩气产量差异的内在地质原因,落实了构造改造作用下的页岩气勘探开发有利区。研究结果表明:①向斜区页岩主要以有机质孔隙、非构造裂缝为主,孔径大;背斜区页岩孔隙结构被强烈改造,以矿物粒间孔、构造裂缝为主,矿物粒间孔狭长且定向排列,孔径小。②向斜区构造相对稳定,有机质孔隙、矿物粒间孔以及成岩裂缝保存较好,宏孔占比高,储集性能好,含气量和产量高;背斜区页岩储层发育大量构造裂缝与断层,孔隙和成岩裂缝被压实,孔径减小,储集性能变差,含气量和产量低。③距盆缘剥蚀区越远,构造越稳定的单元,保存条件越好,该类构造单元页岩储层越发育,含气量和产量越高,页岩气勘探开发潜力越大。结论认为,构造运动对于压力系统的影响是形成不同构造单元深层页岩孔隙结构特征差异的重要因素,并控制了页岩储层的含气性与产量;向斜区深层保存条件好,远离剥蚀区,为勘探开发的最有利区,该认识可为深层页岩气勘探开发提供技术支撑。 展开更多
关键词 四川盆地 泸州地区 构造单元 上奥陶统五峰组—下志留统龙马溪组 深层页岩 孔隙结构 含气性 构造作用
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沿江城市降雨特性及雨洪关系分析——以四川泸州市为例 被引量:1
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作者 刘媛媛 刘业森 +1 位作者 刘方华 李梦阳 《中国防汛抗旱》 2024年第4期62-65,共4页
沿江城市气候多变,外洪和内涝之间关系复杂,相互影响、相互制约,洪涝统筹是沿江城市面临的最主要问题。分析掌握沿江城市的暴雨、洪水特征,可提前预测不同降雨条件下河道洪水的特性及其对城区排涝的影响,对于城市防洪系统和排涝系统统... 沿江城市气候多变,外洪和内涝之间关系复杂,相互影响、相互制约,洪涝统筹是沿江城市面临的最主要问题。分析掌握沿江城市的暴雨、洪水特征,可提前预测不同降雨条件下河道洪水的特性及其对城区排涝的影响,对于城市防洪系统和排涝系统统筹兼顾、合理规划、洪涝预报预警,都具有重要意义。以四川泸州市为例,对暴雨时空分布特征、洪水特征规律等进行了分析探讨,以期为新形势下沿江城市防洪减灾体系建设提供参考。 展开更多
关键词 沿江城市 暴雨时空分布 雨洪特征 防洪排涝 四川泸州市
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基于流形学习算法的降雨数据时空分布特征提取及重构
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作者 刘媛媛 刘业森 +4 位作者 刘方华 李梦阳 刘舒 李匡 任汉承 《水利水电技术(中英文)》 北大核心 2024年第9期85-98,共14页
【目的】掌握精细化的降雨时空分布特征,对于城市洪涝风险管理水平的提高具有重要的意义。我国近十几年降雨监测站网密集且数据精细程度高,但时间序列较短;历史降雨资料时间序列长,但是精细程度低。【方法】为了更有效地利用历史降雨资... 【目的】掌握精细化的降雨时空分布特征,对于城市洪涝风险管理水平的提高具有重要的意义。我国近十几年降雨监测站网密集且数据精细程度高,但时间序列较短;历史降雨资料时间序列长,但是精细程度低。【方法】为了更有效地利用历史降雨资料,将流形学习算法引入到历史降雨资料重构中,从高分辨率降雨资料中,提取降雨的时空分别特征,基于该特征,将历史逐6 h的降雨空间数据重构为逐1 h的降雨数据,以满足城市洪涝风险分析的要求。【结果】结果表明,该方法重构数据高值区与实测值的平均误差在15%以内,低值区在20%以内,比传统插值处理的数据高值区误差降低了45%~85%,低值区降低了10%~40%。【结论】利用流形学习算法重构的历史空间降雨数据符合各地区降雨时空分布特征,可提高降雨空间数据颗粒度,实现降雨时空分布精细化特征的有效、合理的提取和总结。 展开更多
关键词 流形学习 机器学习 暴雨时空分布 特征提取 低分辨率重构 泸州 降水
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单粮和多粮酿造浓香型白酒对比研究
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作者 罗杰 张宿义 +4 位作者 许德富 秦辉 蔡小波 杨艳 李德林 《酿酒》 CAS 2024年第6期83-89,共7页
研究分别采用单粮(高粱)和多粮(高粱、大米、糯米、玉米和小麦)进行浓香型白酒的酿造,对比研究单粮与多粮对浓香型白酒发酵过程及产质量的影响。研究结果表明:单粮产酒己酸乙酯含量高于多粮,乳酸乙酯含量低于多粮;单粮产酒窖香好;多粮... 研究分别采用单粮(高粱)和多粮(高粱、大米、糯米、玉米和小麦)进行浓香型白酒的酿造,对比研究单粮与多粮对浓香型白酒发酵过程及产质量的影响。研究结果表明:单粮产酒己酸乙酯含量高于多粮,乳酸乙酯含量低于多粮;单粮产酒窖香好;多粮产酒粮香突出。 展开更多
关键词 单粮发酵 多粮发酵 浓香型白酒
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浓香双曲酿造工艺与酒醅微生物群落演替规律的研究
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作者 蔡小波 杜宣慧 +5 位作者 曾智娟 秦辉 杨峰 胡玉 黄孟阳 林杨 《食品与发酵科技》 CAS 2024年第1期7-13,21,共8页
本研究按照浓香型白酒工艺特点,利用不锈钢发酵容器,以混合均匀后的浓香产酒大曲和浓香生香大曲作为糖化发酵剂,粉碎高粱为原料,采用清蒸混入、续糟发酵的生产方式,形成浓香双曲酿造工艺。通过常规理化分析技术和Illumina MiSeq高通量... 本研究按照浓香型白酒工艺特点,利用不锈钢发酵容器,以混合均匀后的浓香产酒大曲和浓香生香大曲作为糖化发酵剂,粉碎高粱为原料,采用清蒸混入、续糟发酵的生产方式,形成浓香双曲酿造工艺。通过常规理化分析技术和Illumina MiSeq高通量测序技术对双曲酿造工艺酒醅的理化指标和微生物菌群进行测定和分析,以进一步探究其发酵机理。结果表明,整个发酵过程中理化指标的变化具有较明显的规律性,酒精度前期迅速增加,后期趋于平缓,并在第9 d时达到最大值。发酵过程中共检测出317个属,其中真菌225个、细菌92个,酒醅中主要优势真菌属有2种,伊萨酵母属(Issatchenkia)在发酵过程中占绝对优势;主要优势细菌属有3种,发酵前期乳酸菌属(Lactobacillus)占绝对优势,发酵后期unclassified-Lactobacillales占绝对优势。酒醅发酵过程中微生物群落结构的变化与理化因子有显著关系,对真菌而言,还原糖含量与双足囊菌属(Dipodascus)、嗜热子真菌属(Thermomyces)的相对丰度呈极显著正相关;对细菌而言,淀粉和还原糖的含量与葡萄球菌属(Staphylococcus)相对丰度呈显著正相关,水分含量和酒精度与unclassified-Lactobacillales相对丰度呈显著正相关。酒醅发酵过程中温度、酒精度和酸度推动了微生物群落结构的演替。 展开更多
关键词 浓香双曲酿造工艺 微生物群落 理化指标 相关性分析
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不同发酵期浓香型青稞酒糟醅理化指标及基酒香气组分差异
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作者 涂荣坤 冉茂芳 +6 位作者 张兵 范相巍 许涛 张立强 王松涛 沈才洪 杨平 《酿酒》 CAS 2024年第1期36-43,共8页
基于前期优化的浓香型青稞酒发酵工艺,探究不同发酵期(40 d,50 d和60 d)对浓香型青稞酒糟醅理化指标和基酒挥发性香气组分的影响。结果表明,不同发酵期浓香型青稞酒出窖糟醅的水分、酸度、还原糖和淀粉差异显著(p<0.05)。随着发酵期... 基于前期优化的浓香型青稞酒发酵工艺,探究不同发酵期(40 d,50 d和60 d)对浓香型青稞酒糟醅理化指标和基酒挥发性香气组分的影响。结果表明,不同发酵期浓香型青稞酒出窖糟醅的水分、酸度、还原糖和淀粉差异显著(p<0.05)。随着发酵期的增加,出窖糟醅的水分增加,还原糖、酸度和淀粉呈现下降趋势。延长发酵期有利于延长微生物分解代谢,提高淀粉的利用率,提升出酒率。不同发酵期青稞酒的挥发性香气组分含量差异较大。随着发酵期增加,挥发性香气组分的种类及总含量呈现增加趋势。酸类、醇类和酯类为主要的挥发性香气组分,酸类和醇类组分的含量呈现先增加后下降的趋势,可能与醇酸酯化合成酯类有关,与酯类组分的含量增加趋势相一致。长发酵期有利于提高青稞酒中酯类组分的含量,进而增加青稞酒的香气浓郁度和丰富度。 展开更多
关键词 不同发酵期 浓香型青稞酒 理化指标 香气组分 主组分分析
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资源编排视角下企业质量资源转化为竞争优势的内在机理——来自“泸州老窖”的案例
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作者 程虹 郭超然 《宏观质量研究》 CSSCI 2024年第1期1-14,共14页
质量资源如何推动企业竞争优势构建已引起业界与学术界的关注,而其微观层面的内在转化机理尚未厘清。本研究从资源编排理论视角出发,将泸州老窖作为案例研究对象,对质量资源驱动企业竞争优势构建的内在转化机理进行了深入研究。研究发现... 质量资源如何推动企业竞争优势构建已引起业界与学术界的关注,而其微观层面的内在转化机理尚未厘清。本研究从资源编排理论视角出发,将泸州老窖作为案例研究对象,对质量资源驱动企业竞争优势构建的内在转化机理进行了深入研究。研究发现:第一,质量资源助力企业竞争优势构建的过程经历了资源组合到资源捆绑再到资源撬动的三次跃升;第二,在三次跃升过程中企业质量资源的编排内在机理存在明显差异,不同质量资源编排方式下企业竞争优势转化的具体内在机理为质量资源组合驱动竞争优势结构化、质量资源捆绑实现竞争优势能力化、质量资源撬动促进竞争优势杠杆化。本研究揭示了质量资源助力企业竞争优势构建的内在机理,拓展并丰富了资源编排理论的应用领域,为企业实现质量升级提供了启发与参考。 展开更多
关键词 质量资源 资源编排理论 泸州老窖 案例研究
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不同揭膜方式对植烟土壤养分分布规律和烟叶质量的影响
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作者 崔权仁 牟仕香 +7 位作者 陈波 王俊 何彬 杨明宏 王斌 谢强 竟丽丽 雷晓 《安徽农业科学》 CAS 2024年第21期128-133,158,共7页
[目的]为优质烟生产的合理追肥提供依据。[方法]采集各处理不同深度土壤样品,分析速效氮、磷、钾养分含量,研究农艺措施对不同土层养分的影响。[结果]烟株生育过程中,烟株主要根区0~30 cm土层不同处理速效氮、0~20 cm土层速效磷在烟株... [目的]为优质烟生产的合理追肥提供依据。[方法]采集各处理不同深度土壤样品,分析速效氮、磷、钾养分含量,研究农艺措施对不同土层养分的影响。[结果]烟株生育过程中,烟株主要根区0~30 cm土层不同处理速效氮、0~20 cm土层速效磷在烟株生育期内总体呈先升后降的“凸”型变化;0~10 cm土层氮素峰值出现在移栽后30 d,磷素峰值出现在移栽后60 d;10~30 cm土层氮素峰值出现在移栽时,采烤结束时,常规揭膜培土处理0~10 cm土层速效氮低于本底值,其余处理0~10 cm土层速效氮高于本底值,10~20 cm土层速效磷峰值出现在移栽后30 d,20~30 cm土层速效磷呈非线性增加的“S”型变化。除对照处理外,其余处理0~10 cm速效钾呈“S”型非线性增加趋势,10~20 cm土层速效钾含量均呈“凸”型变化,峰值出现在移栽时,除C处理外,其余处理20~30 cm速效钾呈“S”型非线性增加趋势,E处理积累钾素最多。[结论]烟株周围破膜(直径20 cm)正常培土处理0~30 cm土层养分移动与烟株生长需肥规律吻合,有利于平衡烟叶化学成分,提高烤烟产质量和经济效益。 展开更多
关键词 烤烟 养分分布 揭膜方式 烟叶质量 泸州烟区
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深层页岩气水平井天然裂缝发育特征及其对精细开发的启示——以川南泸州区块五峰组—龙马溪组为例
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作者 杨学锋 夏自强 +3 位作者 赵圣贤 何沅翰 高瑞琪 曹埒焰 《石油实验地质》 CAS CSCD 北大核心 2024年第4期735-747,共13页
天然裂缝发育特征分析是深层页岩气勘探开发评价的重要环节,对储层品质综合评价、压裂差异化设计具有指导意义。以四川盆地南部(以下简称川南)泸州区块五峰组—龙马溪组深层页岩为研究对象,综合利用岩心分析化验、水平井成像测井和地震... 天然裂缝发育特征分析是深层页岩气勘探开发评价的重要环节,对储层品质综合评价、压裂差异化设计具有指导意义。以四川盆地南部(以下简称川南)泸州区块五峰组—龙马溪组深层页岩为研究对象,综合利用岩心分析化验、水平井成像测井和地震等资料,从岩心天然裂缝描述、水平井成像测井发育特征、水平井天然裂缝与地震预测裂缝带之间的匹配关系等方面进行了系统研究。结果表明:水平井成像测井可准确识别3种天然裂缝类型,即高导缝、高阻缝和微断层;水平井识别裂缝走向与现今最大水平主应力方向一致,裂缝倾角分布规律与处于相同构造部位的评价井直井段总体相似;地震预测裂缝带控制成像测井岩心尺度天然裂缝发育,中强度曲率体裂缝带、低强度曲率体裂缝带、蚂蚁体裂缝带对岩心尺度天然裂缝的影响距离分别为110、80、30~50 m。泸州区块岩心尺度天然裂缝具“双高”特征(倾角高、方解石充填程度高),揭示的水平井岩心尺度天然裂缝发育特征与直井段、地震预测裂缝带之间的对应匹配关系,可为川南地区海相页岩天然裂缝精细表征、储层分类评价和差异化压裂工艺试验攻关方向提供借鉴。 展开更多
关键词 水平井 天然裂缝 深层页岩气 五峰组 龙马溪组 泸州区块 四川盆地
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共建川南省域经济副中心视域下宜宾-泸州协同打造南向开放新高地的路径研究
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作者 彭万 《江苏商论》 2024年第9期64-69,共6页
宜宾和泸州同为四川南向开放的重要门户,在四川对外开放进程中均扮演着重要角色,是两市协同打造南向开放的新高地。面临来自外部和内部的诸多挑战和困难,宜宾和泸州应立足新发展阶段,以推动高质量发展为主题,以南向开放为主线,组团构建... 宜宾和泸州同为四川南向开放的重要门户,在四川对外开放进程中均扮演着重要角色,是两市协同打造南向开放的新高地。面临来自外部和内部的诸多挑战和困难,宜宾和泸州应立足新发展阶段,以推动高质量发展为主题,以南向开放为主线,组团构建区域发展新格局,共同探索区域统筹协调发展机制,协同提升基础设施内联外通水平,携手构筑融合互赢的开放型产业体系,共建高水平对外开放门户,协同构建区域创新共同体。 展开更多
关键词 川南 省域经济副中心 宜宾 泸州 南向开放
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