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Sedimentation Rate Rhythms:Evidence from Filling of the Tarim Basin,Northwest china

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Acta Geologica Sinica(English Edition) 2015年第4期89卷 1264-1275页

作者： CHEN Shuping jin zhijun WANG Yi ZHOU Ziyong LI jingchang YANG Weili state key Laboratory of {2. resource and prospecting China University of Petroleum petroleum Exploration and Production Research Institute SINOPEC

Variations of sedimentation rate within a basin over geologic time are a time series that can be filtered into several cyclic wave curves. Based on back-stripping and the empirical mode decomposition method, the cores from 14 wells in the Tarim Basin were selected to do filtering analysis. Four cycles or quasi-cycles （33 Ma, 64.4 Ma, 103.6 Ma, and 2.4 Ma） were obtained. Among these, the 33 Ma period, which was related to the internal earth activity, an external force, or a combination of the two, was the most obvious. The 64.4 Ma period corresponded to the solar system crossing the galaxy plane or the periodic melting of inner-earth material. The 103.6 Ma period was related with plate collisional tectonism around the Tarim Plate. The 2.4 Ma period was related to one galaxy year and may also be related to the aesthenospherical convection cycle.

关键词： geological rhythm basin filling back-stripping wave analysis wave mechanism

Dispositional characteristics of Ordovician Wufeng Formation and Silurian Longmaxi Formation in Sichuan Basin and its adjacent areas

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petroleum Research 2017年第3期2卷 233-246页

作者： Haikuan Nie zhijun jin Xin Ma Zhongbao Liu Tuo Lin Zhenheng Yang state key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development Beijing 100083China Sinopec petroleum Exploration and Production Research Institute Beijing 100083China Sinopec key Laboratory of Shale Oil/Gas Exploration&Production Beijing 100083China School of Energy resource China University of GeosciencesBeijing 100083China Oil&Gas Survey Center China Geological SurveyBeijing 100029China

According to data of gas wells and typical sections of Wufeng Formation and Longmaxi Formation in Sichuan Basin,shale of various graptolite zones were analyzed to determine depositional environment,lithology and thickness characteristics of the graptolite shale interval of WF2.WF3 in the lower part of Wufeng Formation,the graptolite shale interval of WF4 in Guanyinqiao Member of Wufeng Formation and the graptolite shale interval of LM1-LM4 in the bottom of Longmaxi Formation,and characteristics of shale horizontal distribution were also *** the depositional period of the graptolite shale interval of WF2.WF3,the study area was less affected by the Guangxi movement,the depositional environment was the deep water of open sea,where black shale was mainly deposited;the sedimentation center was developed in northeast Guizhou-northeast Sichuan and south Sichuan,the maximum thickness was from 4 to 6 m in the sedimentation *** the depositional period of the graptolite shale interval of WF4,the depositional environment in the study area changed greatly due to global sea level fall and enhanced Guangxi movement;the central Sichuan paleouplift,the central Guizhou paleouplift and the Jiangnan-Xuefeng palaeouplift were further expanded,and the area of the sedimentary basin decreased;the depositional environment was mainly carbonate bioclastic shoal of shallow sea,and partially deep sea which only was distributed in the Shizhu-Fuling-Wuxi area in east and northeast Sichuan and the Gongxian-Yongchuan area in south Sichuan;sediments of shallow water were dominated by limestone and argillaceous limestone with abundant Hirnantia,sediments of deep water were dominated by calcareous mudstone and shale with *** the depositional period of the graptolite shale interval of LM1-LM4,due to rise of global sea level and Guangxi movement,the sedimentary area was larger than that in the depositional period of Guanyinqiao Member,and the sedimentary environmen

关键词： Shale Graptolite zone Depositional environment Palaeouplift Wufeng Formation and Longmaxi Formation Sichuan Basin

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中国华南三水盆地发现氢气高异常渗出点

Science Bulletin 2024年第9期69卷 1217-1220页

作者：金之钧张盼盼刘润超黄晓伟王晓梅孟庆强刘金侠苏宇通张浩哲 Institute of Energy Peking UniversityBeijing 100871China Peking university Ordos Research Institute of Energy Ordos 017010China state key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development Beijing 100083China School of Energy and resources China University of GeosciencesBeijing 100083China Research Institute of petroleum Exploration and Development China National Petroleum CorporationBeijing 100083China Sinopec Star Company Limited Beijing 100083China

Natural hydrogen(H_(2.)is also known as gold H_(2. and is a carbonfree energy resource with potential exploitation and utilization due to its renewable,environmentally friendly,and cost-effective characteristics[1].Natural H_(2. is distributed extensively worldwide,but varies in content in different regions and under varying geological *** present,only the H_(2. wells in Mali are used for economic production[2.3].

关键词： conditions friendly cost

Structural Evolution of the Eastern Qiulitagh Fold and Thrust Belt,Northern Tarim Basin,china

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Acta Geologica Sinica(English Edition) 2009年第2期83卷 347-358页

作者： YANG Minghui jin zhijun LU Xiuxiang SUN Dongsheng TANG Xuan PENG Gengxin LEI Ganglin state key Laboratory of {2. resource and prospecting China University of Petroleum Beijing 102249 Faculty of Natural resource and Information Technology China University of Petroleum Beijing 102249 Exploration and Production Research Institute SINOPEC Beijing 100083 China School of Energy China University of Geosciences Beijing 100083 China Tarim Oilfield Company CNPC Xinjiang 841000 China

The eastern Qiulitagh fold and thrust belt （EQFTB） is part of the active Kuqa fold and thrust belts of the northern Tarim Basin. Seismic reflection profiles have been integrated with surface geologic and drill data to examine the deformation and structure style of the EQFTB, particularly the deformational history of the Dina 2.gas field. Seismic interpretations suggest that Dongqiu 8 is overall a duplex structure developed beneath a passive roof thrust, which generated from a tipline in the Miocene Jidike Formation, and the sole thrust was initiated from the same Jidike Formation evaporite zone that extends westward beneath the Kuqatawu anticline. Dongqiu 5 is a pop-up structure at the western part of the EQFTB, also developed beneath the Jidike Formation evaporite. Very gentle basement dip and steep dipping topographic slope in the EQFTB suggest that the Jidike Formation salt provides effective decoupling. The strong deformation in the EQFTB appears to have developed further south, in an area where evaporite may be lacking. Since the Pliocene, the EQFTB has moved farther south over the evaporite and reached the Yaken area. Restoring a balanced cross-section suggests that the minimum shortening across the EQFTB is more than 7800 m. Assuming that this shortening occurred during the 5.3 Ma timespan, the shortening rate is approximately 1.47 mm/year.

关键词： Qiulitagh fold and thrust belt Tarim Basin northwestern china

Physical Mechanism of Organic Matter-Mineral Interaction in Longmaxi Shale,Sichuan Basin,china

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Acta Geologica Sinica(English Edition) 2016年第5期90卷 1923-1924页

作者： ZHAO Jianhua jin zhijun jin Zhenkui WEN Xin GENG Yikai College of Geosciences China University of Petroleum Beijing 102249 China state key Laboratory of Shale Oil and Gas Enrichment Mechanisms and Effective Development Beijing 100083 China petroleum Exploration andProduction Research Institute SINOPEC Beijing 100083 China Sinopec key Laboratory of Shale Oil/Gas Exploration andProduction Beijing 100083 China

Objective Shale gas is as an important kind of unconventional natural gas,with a great resource potential,and its exploration and development has attracted much attention around the *** matter（OM）pores are a common ... 详细信息

关键词： OM Physical Mechanism of Organic Matter-Mineral Interaction in Longmaxi Shale,Sichuan Basin,china

Modeling tree root diameter and biomass by ground-penetrating radar

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Science china Earth Sciences 2011年第5期54卷 711-719页

作者： CUI XiHong CHEN jin SHEN jinSong CAO Xin CHEN XueHong {2. XiaoLin state key Laboratory of Earth Surface Processes and {2. Ecology Beijing Normal University Beijing 100875 China state key Laboratory of {2. resource and prospecting China University of Petroleum Beijing 102249 China

Roots play a key role in ecosystem functioning as they transfer water and nutrients from soil to plants. Traditional methods for measuring roots are labor-intensive and destructive in nature, which limits quantitative and repeatable assessments in long- term research. Ground-penetrating radar （GPR） provides a non-destructive method to measure plant roots. Based on the superiority of GPR with 2.GHz frequency, we developed a new, practical method to estimate root biomass. First, average root matter density was measured by collecting a small number of root samples. Second, under controlled, experimental conditions in a sandy area, a root diameter estimation model base on GPR was developed from which root diameter was estimated. Third, root volume was calculated using the estimated root diameter and assuming the shape of roots to be cylindrical. Finally, root biomass was estimated by averaging root matter density and root volume. Results of this study suggest the following：（1） the density of coarse roots with diameters greater than 0.5 cm is relatively uniform; （2. a new wave shape parameter, AT, extracted from profile data of 2.GHz frequency antenna is independent of root depth, thus enabling the construction of a root diameter estimation model with high accuracy; and （3） results of a field experiment demonstrated the GPR-based method to be feasible and effective in estimating biomass of coarse roots. These findings are helpful for improving GPR-based root diameter and biomass estimation models and suggest the potential of GPR data in studying root systems.

关键词： ground-penetrating radar tree root system root biomass root diameter

《朱夏论中国含油气盆地构造》习得——纪念朱夏先生诞辰100周年

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石油实验地质 2020年第5期42卷 670-674页

作者：金之钧中国石化石油勘探开发研究院北京100083 北京大学能源研究院北京100871 页岩油气富集机理与有效开发国家重点实验室北京100083

朱夏先生既是一位理论造诣深厚的石油地质学家,又是一位具有丰富实践经验的油气勘探工作者,是我国含油气盆地研究的创导者、石油地质学奠基人之一。简要回顾了朱夏先生的核心学术思想,总结了近30年来,国内部分学者通过学习、继承和发展... 详细信息

朱夏先生既是一位理论造诣深厚的石油地质学家,又是一位具有丰富实践经验的油气勘探工作者,是我国含油气盆地研究的创导者、石油地质学奠基人之一。简要回顾了朱夏先生的核心学术思想,总结了近30年来,国内部分学者通过学习、继承和发展朱夏先生学术思想,提出的一系列含油气盆地研究的创新性工作方法及认识,包括笔者对盆地波动过程和油气成藏体系等分析方法的探索。展望未来,指出石油地质学所面临的关键科学问题,包括全球性的和中国特殊地质背景的科学问题,认为继续学习、继承和发展朱夏先生学术思想,必将对我国石油地质理论和实践发展产生深远影响。

关键词：朱夏含油气盆地盆地分析成藏体系石油地质学

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当前陆相页岩油勘探开发值得关注的几个问题

石油勘探与开发 2021年第6期48卷 1276-1287页

作者：金之钧朱如凯梁新平沈云琦北京大学能源研究院北京100871 页岩油气富集机理与有效开发国家重点实验室北京100083 中国石化石油勘探开发研究院北京100083 中国石油勘探开发研究院北京100083

基于国内外页岩油勘探开发现状,综合野外观测、典型页岩油区解剖、富有机质页岩样品分析与测试等,对比中美海相与陆相盆地页岩油地质、工程特征的差异性,提出并分析针对中国典型盆地陆相页岩油勘探开发中值得关注的几个问题,包括致密油... 详细信息

基于国内外页岩油勘探开发现状,综合野外观测、典型页岩油区解剖、富有机质页岩样品分析与测试等,对比中美海相与陆相盆地页岩油地质、工程特征的差异性,提出并分析针对中国典型盆地陆相页岩油勘探开发中值得关注的几个问题,包括致密油与页岩油的概念、陆相与海相页岩油的区别、中低成熟度与中高成熟度、垂直渗透率与水平渗透率、源储与源盖、地质与工程、选区与选甜点标准、基础研究与应用研究8个方面。综合鄂尔多斯盆地三叠系延长组、准噶尔盆地吉木萨尔凹陷二叠系芦草沟组、玛湖凹陷二叠系风城组、松辽盆地白垩系青山口组和嫩江组、渤海湾盆地古近系孔店组和沙河街组大面积发育的富有机质页岩的地质特征对比,认为未来陆相页岩油从勘探到开发,应聚焦陆相细粒沉积物理化学生物作用过程与陆相富有机质页岩形成机理、成岩-成烃-成储动态演化与烃类赋存富集机理、不同成岩阶段陆相页岩致裂机制与不同成熟度页岩油多相多尺度流动机理3个关键科学问题,阐明不同页岩层系储集性、含油性、可压性与不同成熟度页岩油可动性的主控因素,建立陆相页岩油富集模式,构建页岩油选区评价方法体系,探索陆相页岩油的有效开发方式,为中国陆相页岩油规模经济勘探开发提供理论基础和技术支撑。

关键词：陆相页岩油中低成熟度中高成熟度垂直渗透率水平渗透率源储源盖地质与工程

基于LightGBM算法的地层破裂压力预测方法及应用

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中国测试 2024年第4期50卷 134-143页

作者：李华洋曹志鹏吴小龙朱施杰邓金根张水良中国石油大学(北京)石油工程学院北京102249 中国石油大学(北京)油气资源与探测国家重点实验室北京102249 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室湖北武汉430071 重庆大学煤矿灾害动力学与控制国家重点实验室重庆400044 中海油天津分公司天津300459

针对传统的地层破裂压力预测方法预测精度较低、普适性不高等问题,提出基于LightGBM机器学习算法构建破裂压力智能预测模型。以井深、地层密度和孔隙压力当量密度作为模型的输入层数据,以S区块中相邻的3口直井为例验证模型的预测效果,并... 详细信息

针对传统的地层破裂压力预测方法预测精度较低、普适性不高等问题,提出基于LightGBM机器学习算法构建破裂压力智能预测模型。以井深、地层密度和孔隙压力当量密度作为模型的输入层数据,以S区块中相邻的3口直井为例验证模型的预测效果,并将LightGBM模型与常用的声波测井资料法进行预测结果的对比分析,最后进行模型的参数敏感性分析。研究结果表明,LightGBM模型的预测精度和稳定性均很好,模型的泛化能力强,5项评价指标均表现得十分优越。LightGBM模型的预测相对误差不超过2.,小于声波测井资料法。所有输入层数据中地层密度对于破裂压力的预测最为敏感。利用LightGBM机器学习算法所建立的破裂压力预测模型不受地质环境的影响,其预测精度也大于声波测井资料法。

关键词：破裂压力机器学习 LightGBM算法压力预测