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柴达木盆地坪西地区副变质岩储集层特征 预览
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作者 夏志远 刘占国 +5 位作者 李森明 张永庶 王波 田明智 伍劲 邹开珍 《石油勘探与开发》 SCIE EI CAS CSCD 北大核心 2019年第1期89-99,共11页
基于岩心、薄片、扫描电镜与测井等资料,运用全岩X光衍射、微米CT扫描方法,系统分析了柴达木盆地坪西地区副变质岩储集层特征。研究区副变质岩储集层岩石类型主要有板岩、钙质片岩和结晶灰岩3种,原岩为奥陶系—志留系的海相碎屑岩与碳... 基于岩心、薄片、扫描电镜与测井等资料,运用全岩X光衍射、微米CT扫描方法,系统分析了柴达木盆地坪西地区副变质岩储集层特征。研究区副变质岩储集层岩石类型主要有板岩、钙质片岩和结晶灰岩3种,原岩为奥陶系—志留系的海相碎屑岩与碳酸盐岩。3类副变质岩储集层发育3大类6亚类储集空间类型,第1类为裂缝,包括构造缝、风化节理缝和溶蚀缝;第2类为溶蚀孔隙,包括溶孔和溶洞;第3类为纳米级晶间孔隙。受裂缝的发育程度和类型控制,3类副变质岩储集层孔喉的数量、体积和半径存在显著的差异。坪西地区副变质岩储集层成因于变质、风化、构造碎裂和溶蚀4种地质作用,其中变质作用对副变质岩类储集层形成具重要的建设作用,可打破传统局限于寻找顶部风化壳的束缚。副变质岩储集层形成经历了5个主要演化阶段,其分布受控于岩石类型、变质程度、古地貌和风化强度。 展开更多
关键词 柴达木盆地 坪西地区 副变质岩 储集层 岩石类型 孔喉特征 储集层成因 储集层分布
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Grading evaluation and prediction of fracture-cavity reservoirs in Cambrian Longwangmiao Formation of Moxi area,Sichuan Basin,SW China 预览
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作者 WANG Bei LIU Xiangjun SIMA Liqiang 《石油勘探与开发:英文版》 2019年第2期301-313,共13页
By using core, thin section, well logging, seismic, well testing and other data, the reservoir grading evaluation parameters were selected, the classification criterion considering multiple factors for carbonate reser... By using core, thin section, well logging, seismic, well testing and other data, the reservoir grading evaluation parameters were selected, the classification criterion considering multiple factors for carbonate reservoirs in this area were established, and the main factors affecting the development of high quality reservoir were determined. By employing Formation MicroScanner Image(FMI) logging fracture-cavity recognition technology and reservoir seismic waveform classification technology, the spatial distribution of reservoirs of all grades were predicted. On the basis of identifying four types of reservoir space developed in the study area by mercury injection experiment, a classification criterion was established using four reservoir grading evaluation parameters, median throat radius, effective porosity and effective permeability of fracture-cavity development zone, relationship between fracture and dissolution pore development and assemblage, and the reservoirs in the study area were classified into grade I high quality reservoir of fracture and cavity type, grade II average reservoir of fracture and porosity type, grade Ⅲ poor reservoir of intergranular pore type. Based on the three main factors controlling the development of high quality reservoir, structural location, sedimentary facies and epigenesis, the distribution of the 3 grades reservoirs in each well area and formation were predicted using geophysical response and percolation characteristics. Follow-up drilling has confirmed that the classification evaluation standard and prediction methods established are effective. 展开更多
关键词 Sichuan Basin Moxi area CAMBRIAN Longwangmiao Formation carbonate rock FRACTURE-CAVITY RESERVOIR RESERVOIR GRADING EVALUATION RESERVOIR PREDICTION
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Characteristics of parametamorphic rock reservoirs in Pingxi area, Qaidam Basin, NW China 预览
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作者 XIA Zhiyuan LIU Zhanguo +5 位作者 LI Senming ZHANG Yongshu WANG Bo TIAN Mingzhi WU Jin ZOU Kaizhen 《石油勘探与开发:英文版》 2019年第1期93-103,共11页
Based on core, thin-section, scanning electron microscopy(SEM) and well logging data, the characteristics of the parametamorphic rock reservoirs in the Pingxi area were analyzed by means of whole rock X-ray diffractio... Based on core, thin-section, scanning electron microscopy(SEM) and well logging data, the characteristics of the parametamorphic rock reservoirs in the Pingxi area were analyzed by means of whole rock X-ray diffraction and micron CT scanning. The parametamorphic rock reservoirs mainly had three types of rocks: slate, crystalline limestone and calc-schist;the original rocks were Ordovician-Silurian marine clastic and carbonate rocks. The three types of parametamorphic rock reservoirs developed three types and six sub-types of reservoir space. The first type of reservoir space was fractures, including structural, weathered and dissolution fractures;the second type was dissolved porosities, including dissolved pores and caves;the third type was nano-sized intercrystalline porosities. The three types of parametamorphic rock reservoirs were different widely in the quantity, volume and radius of pore-throats, and were strongly affected by the type and development degree of fractures. The parametamorphic rock reservoirs were formed by metamorphism, weathering, structural fragmentation and dissolution. Metamorphism reformed the parametamorphic rock reservoirs significantly, breaking the traditional constraint of finding weathering crust at top. The parametamorphic rock reservoirs experienced five formation stages, and their distribution was controlled by rock type, metamorphic degree, ancient geomorphology, and weathering intensity. 展开更多
关键词 Qaidam Basin Pingxi area parametamorphic ROCK RESERVOIR ROCK type pore THROAT CHARACTERISTICS RESERVOIR formation RESERVOIR distribution
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示踪剂监测技术在储层均质性和油层连通性中的应用 预览
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作者 曹新 王林杰 于兆坤 《非常规油气》 2019年第3期71-76,共6页
为分析海上S油田A13井组储层均质性、油层连通性及周边油水井对应关系,针对A13井组储层物性认识不够充分等问题,运用示踪剂监测技术,从注水井注入氟苯甲酸示踪剂,通过井组受益油井油样中见剂的时间、油样中的示踪剂浓度、持续见剂时间... 为分析海上S油田A13井组储层均质性、油层连通性及周边油水井对应关系,针对A13井组储层物性认识不够充分等问题,运用示踪剂监测技术,从注水井注入氟苯甲酸示踪剂,通过井组受益油井油样中见剂的时间、油样中的示踪剂浓度、持续见剂时间、见剂浓度峰值等参数,分析得出该井组与受益井A12H、A16、A17井连通。A13井注入水向A12H、A16、A17井方向突进,井间存在水窜通道,A12H井示踪剂见剂浓度相对较高,见剂速度快,持续时间相对较长,该井与A13井间水窜相对严重;A13井与周围见剂井间的水窜通道主要存在于Ed3Ⅰ小层。 展开更多
关键词 示踪剂 监测技术 储层 均质性 油层 连通性
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陆相断陷盆地致密油藏特征与分类 预览
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作者 周琦 《地质与资源》 CAS 2019年第1期30-34,共5页
陆相断陷盆地的致密油气成藏条件复杂,储层性质变化多,规模开发的难度很大。根据渤海湾盆地的地质、地球化学、实验分析及生产测试等资料,对比国内外拗陷盆地致密油气藏特点,综合分析断陷盆地致密油气的成藏条件和成藏特征.研究表明断... 陆相断陷盆地的致密油气成藏条件复杂,储层性质变化多,规模开发的难度很大。根据渤海湾盆地的地质、地球化学、实验分析及生产测试等资料,对比国内外拗陷盆地致密油气藏特点,综合分析断陷盆地致密油气的成藏条件和成藏特征.研究表明断陷盆地生烃洼陷中富有机质泥页岩厚度大,有机质丰度高,成熟度演化范围宽;泥页岩成分复杂或与不同岩性的致密储层频繁互层,形成了丰富的自生自储或近源聚集的致密油气资源.致密油气藏依据油藏储层岩性类型分为致密碎屑岩类油藏、致密碳酸盐岩类油藏、致密火山岩类油藏、泥页岩类油藏4类.致密碳酸盐岩类油藏成藏条件最好,最易于开发.断裂构造附近泥页岩层系的构造裂缝发育区域,也具有良好的成藏条件,是重要的勘探方向. 展开更多
关键词 致密油 成藏条件 储层 油藏类型 陆相断陷盆地
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Effects of late diagenesis on primary reservoir quality of a quartz arenite unit: a case study from the lower Cretaceous successions of SW Iran
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作者 Amirhossein Enayati-Bidgoli Elham Saemi 《石油科学:英文版》 SCIE CAS CSCD 2019年第2期267-284,共18页
In this study, a sandstone interval of the lower Cretaceous successions in SW Iran is analyzed regarding the effects of late diagenesis on the alteration of primary reservoir quality and pore system. Petrological and ... In this study, a sandstone interval of the lower Cretaceous successions in SW Iran is analyzed regarding the effects of late diagenesis on the alteration of primary reservoir quality and pore system. Petrological and geochemical analyses indicate dominant quartz mineralogy(quartz arenite) deposited in distributary channel and mouth bar environments which is embedded in delta front to prodelta argillaceous sediments. Rather than mineralogy and some remaining primary(intergranular)porosity, several late(burial) diagenetic processes including multi-phase carbonate cementation, chlorite cementation, and chemical compaction, affected the reservoir quality. Most of the diagenetic processes had a decreasing effect on the primary reservoir quality. All recognized diagenetic features are related to burial diagenesis of the surrounding open marine shales(clay mineral transformation) and expelled diagenetic fluids. 展开更多
关键词 SILICICLASTIC RESERVOIR LATE DIAGENESIS RESERVOIR quality Rock type Lower CRETACEOUS SW Iran
西南地区某岩溶水库渗漏分析 预览
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作者 薛伟 袁宗峰 周密 《中国岩溶》 CAS CSCD 北大核心 2019年第4期508-514,共7页
西南地区某水库位于云贵高原中北部,库区可溶盐岩分布较广且岩溶较发育,中部有一条近南北走向的区域性断裂(F1)穿过两岸,为论证此水库成库的可能性,通过地表调查及物探,结果表明:此水库向低邻谷渗漏的可能性小,沿F1断裂带向南部或向下... 西南地区某水库位于云贵高原中北部,库区可溶盐岩分布较广且岩溶较发育,中部有一条近南北走向的区域性断裂(F1)穿过两岸,为论证此水库成库的可能性,通过地表调查及物探,结果表明:此水库向低邻谷渗漏的可能性小,沿F1断裂带向南部或向下游渗漏的可能性问题不大,存在沿灰岩溶蚀通道向下游和向库外渗漏的可能性,沿左岸大理岩与灰绿岩接触带或大理岩向坝下游绕坝渗漏的可能性不大;水库正常蓄水位在Kc1底板高程以下有成库的可能。 展开更多
关键词 水库 可溶盐岩 区域性断裂 渗漏 成库
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连续电导率成像系统(EH-4)在喀斯特地区水库成库条件论证中的应用 预览
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作者 朱海东 蒋才洋 《建筑技术开发》 2019年第11期67-68,共2页
西部喀斯特地区某水库库盆为一天然岩溶海子,针对该岩溶库盆的特征,需进行库盆成库条件论证。本文介绍了电导率成像系统(EH-4)在该库盆中的应用情况,探测出库盆内的断层、溶蚀破碎带、岩溶管道等不良地质体,为库盆成库条件论证提供依据。
关键词 连续电导率成像系统(EH-4) 喀斯特地区 水库 成库条件
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Influences of Reservoir Heterogeneity and Anisotropy on CO2 Sequestration and Heat Extraction for CO2-Based Enhanced Geothermal System
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作者 WANG Changlong HUANG Zhijia +2 位作者 LU Yuehong TANG Gang LI Huan 《热科学学报:英文版》 SCIE EI CAS CSCD 2019年第2期319-325,共7页
Enhanced geothermal systems(EGS) have a great potential to extract geothermal energy and have attracted much interest. In this paper, based on a 3D thermal-hydrologic model considering CO2 sequestration, the influence... Enhanced geothermal systems(EGS) have a great potential to extract geothermal energy and have attracted much interest. In this paper, based on a 3D thermal-hydrologic model considering CO2 sequestration, the influences of reservoir heterogeneity and anisotropy on CO2 sequestration and heat extraction in CO2-based EGS are investigated. Different heterogeneous reservoirs and homogeneous reservoir are compared, and different ratios among reservoir permeability components are compared. The results show that greater reservoir heterogeneity enhances CO2 sequestration and restrains heat extraction. Higher ratio between horizontal(x and y directions) and vertical permeability components enhances CO2 sequestration and heat extraction, and vertical permeability component has a little effect. With the increasing ratio between x-directional(perpendicular to the line of the injection well and the production well) and y-directional(perpendicular to x direction) reservoir permeability components(i.e. kx:ky), both CO2 sequestration amount and steady-state heat extraction rate first increase and then decrease, and thermal breakthrough time increases, showing that there exists an optimum kx:ky, which is about 1:1. The results of this paper indicate that reservoir heterogeneity and anisotropy have important influences on CO2 sequestration and heat extraction. 展开更多
关键词 ENHANCED GEOTHERMAL system CO2 SEQUESTRATION heat extraction RESERVOIR heterogeneity RESERVOIR ANISOTROPY
Distribution and gas-bearing properties of Permian igneous rocks in Sichuan Basin, SW China 预览
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作者 MA Xinhua LI Guohui +5 位作者 YING Danlin ZHAGN Benjian LI Ya DAI Xin FAN Yi ZENG Yunxian 《石油勘探与开发:英文版》 2019年第2期228-237,共10页
Based on the analysis of outcrop, seismic, logging and drilling data, combined with exploration practice, the characteristics,distribution, reservoir performance and gas-bearing properties of Permian igneous rocks in ... Based on the analysis of outcrop, seismic, logging and drilling data, combined with exploration practice, the characteristics,distribution, reservoir performance and gas-bearing properties of Permian igneous rocks in Sichuan Basin are studied. The study shows that central volcanic eruptive facies are developed in Sichuan Basin, and their lithological assemblages and distribution characteristics show obvious differences. The igneous rocks are mainly distributed in three regions: the southwestern part of the basin has dominantly largescale overflow facies basalts;the central and western part of the basin, Jianyang-Santai area, develop intrusive rocks, volcanic lavas(basalts)and pyroclastic rocks;and the eastern part of Sichuan, Dazhou-Liangping area, only develop diabase and basalts. Five aspects of understandings are achieved:(1) The Upper Permian igneous rocks can be divided into intrusive rocks and extrusive rocks, with the extrusive rocks as the main body. The chemical compositions of the extrusive rocks are characterized by both alkaline basalt and tholeiitic basalt, and belong to the subalkaline type of transitional basalt magma eruption.(2) There are obvious rhythmic structures vertically among overflow facies basalt, and the single rhythmic layer consists of, from bottom up, pyroclastic rocks(undeveloped), gray and dark gray porphyritic basalts(unstable), dark gray and purple microcrystalline-cryptocrystalline basalts, dark greyish green porous and amygdaloid basalts;the central volcanic eruption shows the rhythm and the vertical sequence of volcanic clastic rocks(agglomerates and breccias), volcanic lava, tuffaceous lava from bottom to top.(3) The pore types of basalt and pyroclastic rocks are diverse, mainly dissolution pore and de-vitrification micropore, but their physical properties are different. Basalt is characterized by ultra-low pore permeability, small reservoir thickness, and reservoirs are distributed in the upper and middle parts of the cycle, with poor lateral comparability. Volcanic clastic 展开更多
关键词 Sichuan Basin Upper PERMIAN Maokou Formation IGNEOUS ROCK volcanic lava PYROCLASTIC ROCK RESERVOIR property GAS bearing natural GAS RESERVOIR
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水库库区占用定量分析--以东部某省级行政区水库为例 预览
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作者 张士辰 落全富 +1 位作者 赵伟 杨正华 《水利水运工程学报》 CSCD 北大核心 2019年第4期68-73,共6页
明晰水库库区占用情况是规范库区管理、确保防洪安全和大坝安全的重要基础。长期以来库区占用以定性表述为主,未见定量分析成果,库区占用分析深度不足,制约库区管理制度建设和行业发展。依托东部某省级行政区内具有代表性的10座大中型水... 明晰水库库区占用情况是规范库区管理、确保防洪安全和大坝安全的重要基础。长期以来库区占用以定性表述为主,未见定量分析成果,库区占用分析深度不足,制约库区管理制度建设和行业发展。依托东部某省级行政区内具有代表性的10座大中型水库,首次提出库区占用指标体系和设计调查问卷,定量分析库区确权划界、占用类型、占用分布、占用过程,研究提出库区占用监测与分析的对策建议。分析认为,库区占用总体严重,确权工作复杂且滞后,占用以商业开发、城乡住宅和农业生产3种类型为主,库区占用均不低于正常蓄水位高程,占用过程划分为原始形成、快速增长、有所抑制3个典型阶段。建议强化遥感监测手段,尽快建设库区占用数据库,制定《水库库区占用情况调查与分析技术导则》和库区占用严重程度等级划分标准。 展开更多
关键词 水库 库区 占用 定量分析 等级划分标准
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Multi-parameter quantitative assessment of 3D geological models for complex fault-block oil reservoirs 预览
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作者 TAN Xuequn LIU Yunyan +3 位作者 ZHOU Xiaozhou LIU JiANDang ZHENG Rongchen JIA Chao 《石油勘探与开发:英文版》 2019年第1期194-204,共11页
In the field of 3 D geologic modeling, researchers often pay more attention to modeling methods and workflows, but neglect the quantitative evaluation of models. If the evaluation is narrowed to the same reservoir typ... In the field of 3 D geologic modeling, researchers often pay more attention to modeling methods and workflows, but neglect the quantitative evaluation of models. If the evaluation is narrowed to the same reservoir type, the comparability and practicality of quantitative assessment will be emerging. The evaluation system should include three parts: data verification, geological understanding and process check. Data verification mainly involves testing the accuracy of local prediction with actual data, and geological understanding is to examine whether the global estimation honors geological principles and prior insights. Process check is also indispensable to avoid occasionality. To this end, we produced a set of assessment criteria, taking complex fault-block sandstone oil reservoir as an example. To be specific, thirteen characteristic parameters were totally selected, setting weights according to their rated importance, formulating three-level evaluation standards in a centesimal system for each characteristic parameter, and obtaining the final assessment based on the cumulative score. The results indicate that such evaluation can not only access the quality of the model objectively and comprehensively, but also identify the aspects in need of improvement through the deduction items. 展开更多
关键词 RESERVOIR characterization GEOLOGICAL modeling quality evaluation characteristic PARAMETER RESERVES estimation faultblock oil RESERVOIR
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渤南油田低渗透储集层岩性对地应力场的影响 预览
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作者 李志鹏 刘显太 +1 位作者 杨勇 卜丽侠 《石油勘探与开发》 SCIE EI CAS CSCD 北大核心 2019年第4期693-702,共10页
针对岩石力学性质差异对储集层地应力场的影响机制问题开展详细分析及探讨。利用三轴压缩试验分析渤南油田低渗透储集层岩石力学性质的差异性。通过储集层力学分析探讨岩石力学性质差异对储集层地应力的影响机制。利用应力椭圆及有限元... 针对岩石力学性质差异对储集层地应力场的影响机制问题开展详细分析及探讨。利用三轴压缩试验分析渤南油田低渗透储集层岩石力学性质的差异性。通过储集层力学分析探讨岩石力学性质差异对储集层地应力的影响机制。利用应力椭圆及有限元模拟方法,探讨岩石力学性质差异对储集层地应力场的影响规律。渤南油田低渗透储集层岩性越粗弹性模量越大、泊松比越低,砂岩相与泥岩相的岩石力学参数及应力-应变关系差异较大。岩性不同造成力学性质的差异,力学性质的差异造成岩性接触界面产生额外应力,额外应力的存在影响储集层地应力。不考虑构造特征对地应力场的影响,储集层地应力场受额外应力大小及岩性接触面与边界应力夹角的双重协同控制。 展开更多
关键词 岩相 力学性质 储集层 地应力 低渗透油藏 应力场 渤南油田
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水库灾变链链式风险评估 预览
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作者 方致远 向衍 张凯 《水利水运工程学报》 CSCD 北大核心 2019年第2期79-85,共7页
水库灾害事件在演化过程中表现为相互转异、耦合、持续演进等链式结构特点,并呈现不断演化的态势,所造成的危害与影响远比单一灾害事件大且深远,而水库灾变链式效应及其链式风险是研究该态势演化的关键,故针对水库灾变链式效应开展水库... 水库灾害事件在演化过程中表现为相互转异、耦合、持续演进等链式结构特点,并呈现不断演化的态势,所造成的危害与影响远比单一灾害事件大且深远,而水库灾变链式效应及其链式风险是研究该态势演化的关键,故针对水库灾变链式效应开展水库灾变链风险评估模型研究具有重要意义。为此,构建了水库灾变链风险评估模型,结合复杂网络理论与技术,选取边的介数、平均路径长度及连通度对灾变链脆弱性进行表征,并应用于工程实例,对其中相关灾害事件所构成的灾变链进行分析,得到每条灾变链的链式风险度量值并进行排序,可为灾害预警及断链减灾工作提供技术支持。 展开更多
关键词 水库 水库灾害 链式效应 灾害系统
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“库容量”在控制系统中的应用 预览
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作者 张新杰 钱海峰 《科技创新与应用》 2019年第16期161-162,共2页
现在的控制系统越来越复杂,一个控制系统往往有多个子控制系统构成。在提高整个系统的产能时,我们往往注重提高子系统的产能,而忽视了子系统之间的协调;导致整个系统的产能没有提升,甚至下降。在分析每个子系统的具体作用后,在某个子系... 现在的控制系统越来越复杂,一个控制系统往往有多个子控制系统构成。在提高整个系统的产能时,我们往往注重提高子系统的产能,而忽视了子系统之间的协调;导致整个系统的产能没有提升,甚至下降。在分析每个子系统的具体作用后,在某个子系统中应用水库的“库容量”原理后,成功提高了整个控制系统产能。 展开更多
关键词 控制系统 水库 库容量 产能提高
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Practice and knowledge of volumetric development of deep fractured-vuggy carbonate reservoirs in Tarim Basin, NW China 预览
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作者 JIAO Fangzheng 《石油勘探与开发:英文版》 2019年第3期576-582,共7页
Different from the continental layered sandstone and fracture-pore carbonate reservoirs, the fractured-vuggy carbonate reservoirs in the Tarim Basin are mainly composed of fractured-vuggy bodies of different sizes and... Different from the continental layered sandstone and fracture-pore carbonate reservoirs, the fractured-vuggy carbonate reservoirs in the Tarim Basin are mainly composed of fractured-vuggy bodies of different sizes and shapes. Based on years of study on the geological features, flow mechanisms, high-precision depiction and the recovery mode of fractured-vuggy bodies, the idea of “volumetric development” is proposed and put into practice. A “body by body” production methodology is established with respect to volumetric unit of fractures and vugs based on vuggy body’s spatial allocation and reserves. A variety of development wells, various technological methods, and multi-type injection media are used to develop this type of reservoirs in an all-around way. As a result, the resource and production structures of the Tahe oilfield are significantly improved and a highly efficient development is achieved. 展开更多
关键词 Tahe OILFIELD fractured-vuggy RESERVOIR fractured-vuggy body 3D depiction RESERVOIR STIMULATION DEVELOPMENT mode VOLUMETRIC DEVELOPMENT
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基于降雨的昆明水库蓄水模式分析及风险研究 预览
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作者 段燕楠 王占良 王顺金 《云南地理环境研究》 2019年第2期13-19,共7页
根据昆明国家基准气候站1988~2017年的降雨资料,以昆明松华坝水库为例,运用统计、比较等方法,通过分析降雨时空分布特征、蓄水地理环境特征等因素,将昆明水库蓄水模式分为雨季降雨最佳蓄水模式、干旱背景蓄水模式、局地强降雨蓄水模式... 根据昆明国家基准气候站1988~2017年的降雨资料,以昆明松华坝水库为例,运用统计、比较等方法,通过分析降雨时空分布特征、蓄水地理环境特征等因素,将昆明水库蓄水模式分为雨季降雨最佳蓄水模式、干旱背景蓄水模式、局地强降雨蓄水模式、秋季连阴雨降雨蓄水模式和冬季降雨降雪蓄水模式5种;从降雨强度、降雨历时、降雨范围3个方面对降雨蓄水风险进行评估,得出昆明由于降雨引发的蓄水风险相对小,蓄水较为安全;昆明可通过开展常态化人工增雨,增加库塘蓄水,同时加强生态环境建设,保护蓄水环境。 展开更多
关键词 降雨 水库 蓄水模式 蓄水风险评估 昆明
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川中地区震旦系灯影组丘滩相储层差异性对勘探模式的影响 预览
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作者 张玺华 彭瀚霖 +8 位作者 田兴旺 赵路子 黄平辉 汪华 马奎 杨岱林 王云龙 张旋 王家树 《天然气勘探与开发》 2019年第2期13-21,共9页
四川盆地震旦系灯影组四段是重要勘探层系之一,发育受岩溶作用改造的丘滩相储层,截至2018年高石梯—磨溪地区灯影组四段台缘区整体探明储量规模达4.085×10^11m^3。目前,灯四段勘探从台缘区走向台内地区,台缘和台内储层品质差异较大... 四川盆地震旦系灯影组四段是重要勘探层系之一,发育受岩溶作用改造的丘滩相储层,截至2018年高石梯—磨溪地区灯影组四段台缘区整体探明储量规模达4.085×10^11m^3。目前,灯四段勘探从台缘区走向台内地区,台缘和台内储层品质差异较大,台内储层发育分布的研究对后期勘探开发尤为重要。为此,基于实钻井岩心观察、地震以及测录井等资料,从沉积环境及储层成岩作用等方面入手,分析川中地区震旦系灯影组四段台缘区及台内区储层共性与差异性特征,并探讨其控制因素。研究表明:①台缘区与台内区均发育丘滩相+岩溶作用控制的裂缝-孔洞型储层,储层大面积叠置连片发育;②造成两者储层品质差异如此大的主要影响因素包括有利丘滩相发育程度、桐湾末期表生岩溶强度、储层纵向发育程度及储层发育位置等方面;③根据储层发育特征研究,建立台缘区与台内区储层地震反射模式,优选及设计井型,提出针对台内区薄储层应采用水平井及大斜度井为主的勘探模式,以利于提高台内区储层钻遇率,提高单井产量。以此勘探模式指导台内区薄储层的井位部署并取得良好应用效果。 展开更多
关键词 高石梯-磨溪 晚震旦世 储集层 分布规律 钻遇率 产量 勘探模式
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Differential Characteristics of the Upper Ordovician-Lower Silurian Wufeng-Longmaxi Shale Reservoir and its Implications for Exploration and Development of Shale Gas in/around the Sichuan Basin 预览
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作者 WANG Ruyue HU Zongquan +6 位作者 LONG Shengxiang LIU Guangxiang ZHAO Jianhua DONG Li DU Wei WANG Pengwei YIN Shuai 《地质学报:英文版》 SCIE CAS CSCD 2019年第3期520-535,共16页
The Upper Ordovician Wufeng-Lower Silurian Longmaxi shale is widely distributed in the Sichuan Basin and its periphery,which is the key stratum for marine shale gas exploration and development(E&D)in China.Based o... The Upper Ordovician Wufeng-Lower Silurian Longmaxi shale is widely distributed in the Sichuan Basin and its periphery,which is the key stratum for marine shale gas exploration and development(E&D)in China.Based on sedimentary environment,material basis,storage space,fracability and reservoir evolution data,the reservoir characteristics of the Wufeng-Longmaxi shale and their significance for shale gas E&D are systematically compared and analyzed in this paper.The results show that(1)the depocenter of the Wufeng(WF)-Longmaxi(LM)shale gradually migrates from east to west.The high-quality shale reservoirs in the eastern Sichuan Basin are mainly siliceous shales,which are primarily distributed in the graptolite shale interval of WF2-LM5.The high-quality reservoirs in the southern Sichuan Basin are mainly calcareous-siliceous and organic-rich argillaceous shales,which are distributed in the graptolite shale interval of WF2-LM7.(2)Deep shale gas(the burial depth>3500 m)in the Sichuan Basin has high-ultrahigh pressure and superior physical properties.The organic-rich siliceous,calcareous-siliceous and organic-rich argillaceous shales have suitable reservoir properties.The marginal area of the Sichuan Basin has a higher degree of pressure relief,which leads to the argillaceous and silty shales evolving into direct cap rocks with poor reservoir/good sealing capacity.(3)Combining shale gas exploration practices and impacts of lithofacies,depth,pressure coefficient and brittle-ductile transition on the reservoir properties,it is concluded that the favorable depth interval of the Wufeng-Longmaxi shale gas is 2200~4000 m under current technical conditions.(4)Aiming at the differential reservoir properties of the Wufeng-Longmaxi shale in the Sichuan Basin and its periphery,several suggestions for future research directions and E&D of shale gas are formulated. 展开更多
关键词 SHALE gas RESERVOIR physical property fracability evolution Wufeng FORMATION Longmaxi Formation Sichuan BASIN
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三交河煤矿蓄水池远程监测控制系统研究 预览
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作者 李小龙 《煤炭与化工》 CAS 2019年第4期90-93,共4页
为了解决三交河煤矿蓄水池供水系统原设备无法判断设备故障,设备运行效率低、故障率高的问题,对污水处理厂蓄水池进出水系统安装监测控制系统,从传感器的选型、分站、主站三方对系统进行设计。通过现场应用表明,系统设计合理,运行平稳,... 为了解决三交河煤矿蓄水池供水系统原设备无法判断设备故障,设备运行效率低、故障率高的问题,对污水处理厂蓄水池进出水系统安装监测控制系统,从传感器的选型、分站、主站三方对系统进行设计。通过现场应用表明,系统设计合理,运行平稳,功能完善,可以有效提高工作效率,保证设备运行安全可靠,实现了矿井污水处理厂蓄水池的远程自动化控制。 展开更多
关键词 蓄水池 监测监控 系统研究
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