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Satellite Thermal Infrared Earthquake Precursor to the Wenchuan M_s 8.0 Earthquake in Sichuan,china,and its Analysis on Geo-dynamics

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Acta Geologica Sinica(English Edition) 2009年第4期83卷 767-775页

作者： WEI Lejun GUO Jianfeng liu Jianhua lu Zhenquan LI Haibing CAI Hui chinese academy of {2. sciences Beijing 100037 China Haikou College of Economics Haikou Hainan 570203 China Seismological Bureau of Hainan Haikou Hainan 570203 China institute of Mineral Resources Chinese Academy of Geological Sciences Beijing 100037 China institute of Geology Chinese Academy of Geological Sciences Beijing 100037 China Haikou Bureau of Earthquake Haikou Hainan 570145 China

Based on an interpretation and study of the satellite remote-sensing images of FY-2. thermal infrared 1st wave band （10.3-11.3 μm） designed in china, the authors found that there existed obvious and isolated satellite thermal infrared anomalies before the 5.12.Wenchuan Ms 8.0 Earthquake. These anomalies had the following characteristics：（1） The precursor appeared rather early： on March 18, 2.08, i.e., 55 days before the earthquake, thermal infrared anomalies began to occur; （2. The anomalies experienced quite many and complex evolutionary stages： the satellite thermal infrared anomalies might be divided into five stages, whose manifestations were somewhat different from each other. The existence of so many anomaly stages was probably observed for the first time in numerous cases of satellite thermal infrared research on earthquakes; （3） Each stage lasted quite a long time, with the longest one spanning 13 days; （4） An evident geothermal anomaly gradient was distributed along the Longmen seismic fracture zone, and such a phenomenon might also be discovered for the first time in satellite thermal infrared earthquake research. This discovery is therefore of great guiding and instructive significance in the study of the earthquake occurrence itself and the trend of the postearthquake phenomena.

关键词： Wenchuan earthquake prediction ground-stress satellite thermal infrared short-term and impending earthquake precursor

利用长水平井实现超薄层未动用储量有效开发——以下二门油田梨树凹区块为例

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石油地质与工程 2024年第3期38卷 18-22页

作者：李伟才刘宇张云杨璐闫荣杰中国石化河南油田分公司勘探开发研究院河南南阳473000 河南省提高石油采收率重点实验室河南南阳473000

泌阳凹陷下二门油田梨树凹区块受有效厚度薄、含油层位单一、储层物性差、单井产量低等因素限制,探明储量动用程度低,开发效果差。为提高该区储量动用程度,积极推广应用水平井开发技术,通过加强油藏地质综合研究,进一步落实了可动用潜力... 详细信息

泌阳凹陷下二门油田梨树凹区块受有效厚度薄、含油层位单一、储层物性差、单井产量低等因素限制,探明储量动用程度低,开发效果差。为提高该区储量动用程度,积极推广应用水平井开发技术,通过加强油藏地质综合研究,进一步落实了可动用潜力;地质工程一体化实施过程中,通过多靶点+近钻头方位伽马技术严控水平段轨迹,提高了储层及油层钻遇符合率;通过优化射孔井段,提高了单井产量,逐步形成了一套适合河南油田薄层油藏长水平井开发技术。现场实施结果表明,水平井实钻水平段长达892.m,储层钻遇符合率为100%,油层钻遇符合率为91.4%,初期日产油14.1 t。该区块水平井的成功实施,为超薄层油藏挖潜技术指出方向,对河南油田未动用储量的有效开发具有一定的指导意义。

关键词：河南油田梨树凹区块未动用储量长水平井薄层油藏

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塔东地区盆山耦合与油气成藏模式研究

天然气地球科学 2005年第5期16卷 552-558页

作者：刘朝露贾承造夏斌李景明李本亮王核中国科学院广州地球化学研究所广东广州510640 中国石油勘探开发研究院北京100083 中国石油勘探开发研究院廊坊分院河北廊坊065007

以大陆动力学、构造地质学和含油气系统理论做指导,以盆地构造—沉积分析技术为手段,研究了塔东地区与南天山、阿尔金山之间的耦合关系,探讨了塔东地区的大地构造演化特征及其对油气成藏的控制,完善了塔东地区的油气成藏模式。指出:从... 详细信息

以大陆动力学、构造地质学和含油气系统理论做指导,以盆地构造—沉积分析技术为手段,研究了塔东地区与南天山、阿尔金山之间的耦合关系,探讨了塔东地区的大地构造演化特征及其对油气成藏的控制,完善了塔东地区的油气成藏模式。指出:从中新生代以来,塔东地区与南天山、阿尔金山盆山耦合关系十分密切;构造是塔东地区沉积演化史的主控因素,控制了油气的生储盖成藏组合;侏罗系煤系露头的发现,为混源油气成藏模式提供了有利的证据。

关键词：塔东盆山耦合油气成藏

Tight gas charging and accumulation mechanisms and mathematical model

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Petroleum Exploration and Development 2023年第6期50卷 1411-1425页

作者： ZHOU Nengwu lu Shuangfang ZHANG Pengfei LIN Zizhi XIAO Dianshi lu Jiamin ZHU Yingkang {2. Yancheng LIN Liming WANG Min JIANG Xinyu {2. Yang WANG Ziyi LI Wenbiao Sanya Offshore Oil&Gas Research institute Northeast Petroleum UniversitySanya 572025China Key Laboratory of Continental Shale Hydrocarbon Accumulation and Efficient Development Ministry of EducationNortheast Petroleum UniversityDaqing 163318China School of Geosciences China University of Petroleum(East China)Qingdao 266580China College of Earth Science and Engineering Shandong University of Science and TechnologyQingdao 266590China Exploration and Development Research institute PetroChina Daqing Oilfield Company LimitedDaqing 163712China china United Coalbed Methane Co. Ltd.Beijing 100083China

The gas-water distribution and production heterogeneity of tight gas reservoirs have been summarized from experimental and geological observations, but the charging and accumulation mechanisms have not been examined quantitatively by mathematical model. The tight gas charging and accumulation mechanisms were revealed from a combination of physical simulation of nuclear magnetic resonance coupling displacement, numerical simulation considering material and mechanical equilibria, as well as actual geological observation. The results show that gas migrates into tight rocks to preferentially form a gas saturation stabilization zone near the source-reservoir interface. When the gas source is insufficient, gas saturation reduction zone and uncharged zone are formed in sequence from the source-reservoir interface. The better the source rock conditions with more gas expulsion vo{2.me and higher overpressure, the thicker the gas saturation stabilization and reduction zones, and the higher the overall gas saturation. When the source rock conditions are limited, the better the tight reservoir conditions with higher porosity and permeability as well as larger pore throat, the thinner the gas saturation stabilization and reduction zones, but the gas saturation is high. The sweet spot of tight gas is developed in the high-quality reservoir near the source rock, which often corresponds to the gas saturation stabilization zone. The numerical simulation results by mathematical model agree well with the physical simulation results by nuclear magnetic resonance coupling displacement, and reasonably explain the gas-water distribution and production pattern of deep reservoirs in the Xujiaweizi fault depression of the Songliao Basin and tight gas reservoirs in the Linxing-Huangfu area of the Ordos Basin.

关键词： tight gas charging and accumulation mechanism mathematical model Xujiaweizi fault depression Songliao Basin Linxing-Huangfu area Ordos Basin

右江盆地富宁地区石炮组化石及顶部凝灰岩年代学特征及意义

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地球学报 2024年第4期45卷 439-449页

作者：李维科宛胜刘军平晏海宝何世军赵云江赵江泰卢晓萍云南省地质调查院云南昆明650216 自然资源部三江成矿作用及资源勘查利用重点实验室云南昆明650051 江西省地质调查勘查院基础地质调查所江西南昌330030 中国地质大学(北京)地球科学与资源学院北京100083 中国冶金地质总局第二地质勘查院福建福州350108

通过野外地质调查,笔者在右江盆地富宁地区中三叠统板纳组与下伏下三叠统石炮组界面之下约100 m采获早三叠世双壳类和菊石等化石,在T_(1)/T_(2.界面之间新发现一套厚约5 m凝灰岩层,对其进行LA-ICP-MS U-Pb同位素定年,自下而上分别获得(2...

通过野外地质调查,笔者在右江盆地富宁地区中三叠统板纳组与下伏下三叠统石炮组界面之下约100 m采获早三叠世双壳类和菊石等化石,在T_(1)/T_(2.界面之间新发现一套厚约5 m凝灰岩层,对其进行LA-ICP-MS U-Pb同位素定年,自下而上分别获得(2.9.0±1.9)Ma、(2.7.9±3.4)Ma、(2.5.5±1.6)Ma同位素年龄,在误差范围内一致,首次获得石炮组顶界年龄为下三叠统奥伦尼克阶。本次新发现的凝灰岩层及化石可作为早—中三叠世等时地层标志进行区域对比,丰富了右江盆地早三叠世火山岩分布范围,认为右江盆地滇东南地区T_(1)/T_(2.的划分标志以该套凝灰岩作为标志较为合理。结合前人资料,这套凝灰岩、生物化石为华南陆块T_(1)/T_(2.界线的划分提供了重要年代学及古生物证据,认为安尼阶/奥伦尼克阶界线年龄应定为2.5.5 Ma,可能更为合理。

关键词：华南陆块右江盆地早—中三叠统凝灰岩古生物锆石U-Pb年龄

Reconstruction of deep fluid chemical constituents for estimation of geothermal reservoir temperature using chemical geothermometers

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Journal of Groundwater Science and Engineering 2017年第2期5卷 173-181页

作者： liu Yan-guang liu Bing {2. Chuan ZHU Xi WANG Gui-ling institute of Hydrogeology and Environmental Geology CAGS Shijiazhuang 050061 China

This paper elaborates the chemical constituent change principles of deep geothermal fluid during the process of upward movement. It summarizes research methods of hydrochemistry, isotope and numerical modelling technique for the physiochemical processes such as decreasing temperature, shallow groundwater infusion, and degassing. The multi-component chemical geothermometry methods including gas geochemical method are discussed. High-temperature geothermal fields in{2. are mostly located in the southwest with frequent new tectonic movements, especially in Tibet high-temperature geothermal areas. Therefore the paper also focuses the status of high-temperature geothermal fluid research. At last, it's pointed out in the paper that in the future we can start from typical high-temperature geothermal zones and geothermal fields to explore optimization of the multi-component geothermometry method and use it in the reconstruction and analogue of the formation mechanism and internal relevancy of regional geothermal systems.

关键词： High temperature geothermal fluid Multi-component geothermometer optimization Geothermal gases Analogue

Determining the Main Gas-generation Phase of Marine Organic Matters in Different Occurrence States using the Kinetic Method

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Acta Geologica Sinica(English Edition) 2008年第1期82卷 197-205页

作者： WANG Yunpeng ZHAO Changyi WANG Zhaoyun WANG Hongjun ZOU Yanrong liu Jinzhong ZHAO Wenzhi liu Dehan {2. Jialan State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Research institute of Petroleum Exploration and Development PetroChina Beijing 100083 China

This paper probes the determination of the main gas-generation phase of marine organic mattes using the kinetic method. The main gas-generation phase of marine organic matters was determined by coupling the gas generation yields and rates in geological history computed by the acquired kinetic parameters of typical marine organic matters （reservoir oil, residual bitumen, lowmaturity kerogen and residual kerogen） in both china and abroad and maturity by the EasyRo（%） method. Here, the main gas-generation phase was determined as Ro%=1.4%-2.4% for type Ⅰ kerogen, Ro%=1.5-3.0% for low-maturity type Ⅱ kerogen, Ro%=1.4-2.8% for residual kerogen, Ro%=1.5-3.2. for residual bitumen and Ro%=1.6-3.2. for reservoir oil cracking. The inf{2.ences on the main gas-generation phase from the openness of the simulated system and the ＂dead line＂ of natural gas generation are also discussed. The results indicate that the openness of simulation system has a definite inf{2.ence on computing the main gas-generation phase. The main gas-generation phase of type Ⅱ kerogen is Ro%=1.4-3.1% in an open system, which is earlier than that in a closed system. According to our results, the ＂dead line＂ of natural gas generation is determined as Ro=3.5 % for type Ⅰ kerogen, Ro=4.4-4.5% for type Ⅱ kerogen and Ro=4.6% for marine oil. Preliminary applications are presented taking the southwestern Tarim Basin as an example.

关键词： marine organic matter kerogen oil cracking hydrocarbon generating kinetics main gasgeneration phase southwestern Tarim Basin gas source kitchen

真菌促进硅酸盐矿物风化的速率、机制以及地质、地球化学效应

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高校地质学报 2024年第3期30卷 322-335页

作者：李子波陆现彩滕辉刘连文郄文昆庞科张文轩季峻峰陈骏中国科学院南京地质古生物研究所古生物学与油气地层应用重点实验室南京210008 表生地球化学教育部重点实验室南京大学地球科学与工程学院南京210023 表层地球系统科学研究院天津大学地球系统科学学院天津300072

真菌分布广泛,从地球表层到深达1.4 km的陆壳都可以找到它们的存在。根据它们的生态习性和营养方式,真菌可分为腐生、共生和寄生真菌。菌丝是真菌的基本结构单位。真菌的菌丝通过其顶端延长的生长方式和强大的代谢能力,在硅酸盐矿物的... 详细信息

真菌分布广泛,从地球表层到深达1.4 km的陆壳都可以找到它们的存在。根据它们的生态习性和营养方式,真菌可分为腐生、共生和寄生真菌。菌丝是真菌的基本结构单位。真菌的菌丝通过其顶端延长的生长方式和强大的代谢能力,在硅酸盐矿物的风化过程中发挥独特的作用,尤其是对含有营养元素的硅酸盐矿物。这一过程调控着成壤、成矿,以及元素的生物地球化学循环等重要地质与地球化学过程。但是,真菌在硅酸盐自然风化过程中发挥的作用一直没有受到足够的重视。本文首先梳理了真菌的生长方式,旨在阐明其促进硅酸盐矿物风化的速率、机制以及对硅酸盐矿物自然风化的贡献。通过文献回顾并结合全球变化的背景,本文提出了未来相关工作重点攻关方向;(1)进一步限定真菌在自然环境中对硅酸盐矿物风化的贡献;(2.阐明真菌促进的硅酸盐矿物风化与地质、地球化学过程的偶联;(3)应用功能真菌提高陆地增强硅酸盐风化(enhanced silicate weathering)的碳去除效率。这些研究将深化对真菌在地表关键过程中扮演角色的认识,为地球系统模型(GEOCARB、COPSE和SCION)提供重要信息,提高不同圈层相互作用预测的准确性,并为增强硅酸盐风化实现高效固碳提供新途径和科学依据。

关键词：真菌硅酸盐矿物碳循环固碳地球系统

深海多金属结核中战略性关键金属的分布及其控制因素

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海洋地质与第四纪地质 2024年第3期44卷 173-182页

作者：黄威姜学钧崔汝勇路晶芳侯方辉李攀峰宋维宇徐翠玲刘李伟孙军中国地质调查局青岛海洋地质研究所青岛266237 青岛海洋科技中心海洋矿产资源评价与探测技术功能实验室青岛266237

深海多金属结核富集经济发展和人民生活亟需的战略性关键金属,资源潜力巨大。通过对前人研究工作的系统性归纳总结,揭示不同类型、不同环境多金属结核内主要分布于锰氧化物中的Co、Cu、Li、Mn、Mo、Ni、Tl,以及主要分布在铁羟基氧化物内... 详细信息

深海多金属结核富集经济发展和人民生活亟需的战略性关键金属,资源潜力巨大。通过对前人研究工作的系统性归纳总结,揭示不同类型、不同环境多金属结核内主要分布于锰氧化物中的Co、Cu、Li、Mn、Mo、Ni、Tl,以及主要分布在铁羟基氧化物内的REY、Te、Ti的含量,赋存状态,迁移演化过程及富集机制。表面吸附作用首先驱动这些战略性关键金属富集进入多金属结核,其中Mo、Ni、REY和Ti仅通过吸附作用就能实现高度富集。随后Ce、Co和Tl发生的氧化反应,以及Co、Cu、Li、Ni和Te通过晶格进入的方式继续增强这些金属在结核内的富集程度。当结核被沉积物埋藏且周边环境由氧化向次氧化转变后,发生的大规模矿物相变会导致结核富集Co而强烈亏损Ni、REY、Mo和Li。结核最终处于还原环境时,其矿物晶体格架会彻底崩塌和溃散,推测仅有部分铁氧化物组分会残留下来。未来亚微米尺度和原位高精度的实验研究工作,将提升对于这些金属,尤其是诸如Te、Tl等低含量金属在结核内分布、富集过程和控制因素的深刻理解,助力深海金属矿产资源勘查和选冶利用。

关键词：多金属结核战略性关键金属分布控制因素