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基于阵列声波测井估算碳酸盐岩储层岩石力学和地应力参数——以顺北4号带为例

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地质力学学报 2024年第3期30卷 394-407页

作者：刘军黄超周磊陈群张生龙中国石化西北油田分公司勘探开发研究院新疆乌鲁木齐830011 中国地质科学院地质力学研究所北京100081

地质力学分析在油气藏勘探开发过程中发挥着重要作用,顺北油气田中—下奥陶统一间房组—鹰山组储层地应力研究相对滞后。对比分析了顺北4号带下古生界中—下奥陶统一间房组—鹰山组碳酸盐岩不同类型储层的岩石力学和地应力特征,同时探... 详细信息

地质力学分析在油气藏勘探开发过程中发挥着重要作用,顺北油气田中—下奥陶统一间房组—鹰山组储层地应力研究相对滞后。对比分析了顺北4号带下古生界中—下奥陶统一间房组—鹰山组碳酸盐岩不同类型储层的岩石力学和地应力特征,同时探讨了微观颗粒结构对碳酸盐岩储层地应力和岩石力学参数的控制作用,为顺北地区超深层碳酸盐岩储层评价提供了基础地质依据。基于弹簧组合模型,通过岩石力学实验和阵列声波测井确定了岩石力学和地应力特征,通过铸体薄片和X射线CT扫描表征碳酸盐岩的微观孔隙结构。研究结果表明:顺北4号带一间房组—鹰山组杨氏模量分布在50~89 GPa,抗压强度在99~1.6 MPa,泊松比在0.25~0.32;地层最大水平主应力为200~225 MPa,最小水平主应力为1.5~1.0 MPa。一间房组—鹰山组碳酸盐岩不同类型储层的岩石力学参数和地应力存在明显差异,从Ⅰ类、Ⅱ类、Ⅲ类到非储层段碳酸盐岩的杨氏模量、抗压强度和最大水平主应力明显增大,而泊松比和最小水平主应力变化不大。相比于一间房组—鹰山组泥晶灰岩,砂屑-生屑灰岩方解石颗粒较大,颗粒黏结程度降低,导致岩石抗压强度和杨氏模量减小;砂屑-生屑灰岩部分方解石颗粒呈次圆状或圆状,颗粒三维空间球度较大,颗粒之间咬合作用减弱,使得岩石的抗压强度和杨氏模量减小;砂屑-生屑灰岩存在大量的孔隙和裂缝,灰岩易沿着潜在的微裂缝面或者颗粒接触面摩擦滑动甚至破裂,同样导致岩石抗压强度和杨氏模量减小。此外,一间房组—鹰山组泥晶灰岩受热液作用影响,部分白云石交代为石英,导致泥晶灰岩的抗压强度和杨氏模量增加。岩石的宏观力学特征和岩石力学参数受岩石微观颗粒结构的制约,一间房组—鹰山组杨氏模量、抗压强度和最大水平主应力低值区即为顺北4号带优势储层发育区带。

关键词：顺北4号带碳酸盐岩岩石力学参数地应力

熊耳山矿集区蒿坪沟Ag-Au多金属矿床绿泥石特征及其找矿意义

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地质力学学报 2024年第1期30卷 129-146页

作者：刘松岩张达杨明建张鑫明未国栋聂胜强王轩冯彦平栗文杰陈贵兰中国地质大学(北京) 北京100083 中国地质科学院矿产资源研究所北京100037 北京大学地球与空间科学学院北京100871 河南发恩德金属矿产有限公司河南洛阳471700

为理清蒿坪沟Ag-Au多金属矿床中多阶段矿化与热液蚀变之间的关系,文章选取与铅锌成矿阶段密切相关的绿泥石进行野外观察及电子探针分析。文章将蒿坪沟Ag-Au多金属矿床中的绿泥石分为3类:Ⅰ型分布在石英脉两侧的围岩中;Ⅱ型呈细粒、隐晶... 详细信息

为理清蒿坪沟Ag-Au多金属矿床中多阶段矿化与热液蚀变之间的关系,文章选取与铅锌成矿阶段密切相关的绿泥石进行野外观察及电子探针分析。文章将蒿坪沟Ag-Au多金属矿床中的绿泥石分为3类:Ⅰ型分布在石英脉两侧的围岩中;Ⅱ型呈细粒、隐晶质填充于隐爆角砾岩基质;Ⅲ型与铅锌硫化物共生、或以蠕虫状广泛分布在石英颗粒间隙中。3种类型绿泥石均为斜绿泥石,并落在了铁镁绿泥石的范围内,指示其形成于偏还原的酸性环境中;在阳离子置换中,主要发生了Fe2+对Mg2+的置换,其余置换作用均不明显;3种绿泥石形成与镁铁质围岩关系密切。由校正后的绿泥石地质温度计估算出3种类型绿泥石的形成温度为1.6~239℃,属于中—低温热液蚀变范围。3类绿泥石与蒿坪沟Ag-Au多金属矿床银铅锌成矿阶段相匹配,对进一步找矿勘查具有重要意义。绿泥石化学特征表明岩浆热液参与了成矿流体的形成,绿泥石形成于熊耳山矿集区早白垩世大规模岩浆−成矿时期。

关键词：多金属矿床找矿绿泥石电子探针成矿地球化学熊耳山

中深层煤炭地下气化的气化腔安全宽度计算方法

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煤炭科学技术 2024年第2期52卷 183-193页

作者：东振任博陈艳鹏赵宇峰陈浩陈姗姗薛俊杰张梦媛易海洋吴瀚琦中国石油勘探开发研究院北京100083 中国矿业大学深部岩土力学与地下工程国家重点实验室江苏徐州221116 华北科技学院建筑工程学院河北廊坊065201 中国石油天然气股份有限公司储气库分公司北京100101

煤炭地下气化是目前温度最高(超过1.00℃)的化石能源非常规开发方式,中深层(本文指埋深800~1.00 m)煤炭地下气化在提高气化压力、降低地质安全风险方面优势明显,科学预测气化腔安全宽度对保障气化稳定运行十分重要,由于目前基于可控注... 详细信息

煤炭地下气化是目前温度最高(超过1.00℃)的化石能源非常规开发方式,中深层(本文指埋深800~1.00 m)煤炭地下气化在提高气化压力、降低地质安全风险方面优势明显,科学预测气化腔安全宽度对保障气化稳定运行十分重要,由于目前基于可控注入点后退(CRIP)工艺的气化腔安全宽度计算方法尚未建立,为保证现场试验顺利实施,需要开展针对性研究。气化腔顶板“裸露”在气化腔后会受到高温影响,通过数值模拟方法研究了压应力约束条件下岩石内部热应力产生位置以及颗粒、基质热膨胀系数差异对热应力大小的影响规律,结合高温处理后的岩石电镜扫描结果,查明了高温下岩石热损伤机理。根据CRIP气化工艺造腔特点,建立了考虑高温影响的气化腔顶板薄板模型,结合“关键层”理论提出了气化腔安全宽度计算方法。研究表明:岩石热损伤是岩石物理化学反应与热应力互相促进、共同作用的结果,高温下岩石发生不规则变形,岩石热损伤引起的微观结构变化是导致岩石力学性质、物理性质变化的根本原因。岩石的最大拉张热应力出现在颗粒界面或热膨胀系数较小的颗粒中,颗粒与基质热膨胀系数比值在[0.01.1.时,最大拉张热应力随颗粒热膨胀系数减小而快速增加。泥岩加热到200℃时开始出现微裂隙;加热到400℃时裂隙发育更加明显,主要是沿颗粒边缘破裂;加热到600~800℃时,裂隙数量增多、尺寸变大;加热到1.00℃时,除出现较大裂隙外,还产生了大量孔隙;1.00℃时裂隙连通性明显增加,气孔发育较大。由于高温的影响,薄板模型的步距准数不再是定值,需要根据气化腔顶板热破坏范围与顶板硬岩层的空间位置关系确定具体数值。气化腔安全宽度受温度影响,在研究算例中,砂岩顶板在35、1.00℃时安全宽度计算结果分别为34.3 m和1..1.m,相差达58.9%,泥岩顶板在35、1.00℃时安全宽度计算结果分别为1..7 m和1..9 m,相差4.8%。最后从降低顶板垮落风险、有利于气化控制角度,提出了煤层纵向靶区位置的确定方法,当煤层厚度超过气化腔安全宽度一半时,建议将水平井纵向靶区设计在距离煤顶不超过气化腔安全宽度一半的位置。

关键词：煤炭地下气化可控注入点后退工艺气化腔热应力热损伤薄板模型步距准数安全宽度

Quantitatively determine the dominant driving factors of the spatial–temporal changes of vegetation NPP in the Hengduan Mountain area during 2000-201.

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Journal of Mountain Science 2021年第2期18卷 427-445页

作者： chen Shu-ting GUO Bing {1. Rui ZANG wen-qian WEI Cui-xia WU Hong-wei yang Xiao ZHEN Xiao-yan LI Xing {1. Da-fu HAN Bao-min {1. Hai-ling School of Civil Architectural Engineering Shandong University of TechnologyZibo 255000China State Key Laboratory of Resources and Environmental Information System Institute of Geographic Sciences and Natural Resources ResearchChinese Academy of SciencesBeijing 100101China Key Laboratory of Land use Ministry of Natural ResourcesChina Land Survey and Planning InstituteBeijing 100035China Key Laboratory for Digital Land and Resources of Jiangxi Province East China University of TechnologyNanchang 330013China Key Laboratory of National Geographic Census and Monitoring Ministry of Natural ResourcesWuhan 430079China Aerospace Information Research institute Chinese Academy of SciencesBeijing 100101China Key Laboratory of UrbanLand Resources Monitoring and Simulation Ministry of Natural ResourcesShenzhen 518000China Key Laboratory of Meteorology and Ecological Environment of Hebei Province Shijiazhuang 050021China Land Satellite Remote Sensing Application Center Ministry of Natural ResourcesBeijing 100048China College of geological Engineering and Geomatics Chang'an UniversityXi'an 710054China

The Hengduan mountain area,located in the upper reaches of the yangtze River of{1.,is an important ecological barrier that significantly impacts the climate and ecological environment of the surrounding region and western{1. as a *** paper introduces the gravity center model used to analyze the spatial-temporal variation patterns of vegetation Net Primary Productivity(NPP)from 2000 to 201.,which were determined by the use of MOD1. A3 NPP ***,the dominant driving factors of the spatial–temporal changes of vegetation NPP of the Hengduan Mountain area were quantitatively determined with a geographical detector over *** results revealed that:(1.From 2000 to 201.,there was an increasing trend of vegetation NPP in the Hengduan mountain *** the whole study region,the vegetation NPP with a mean value of 61..37 gC·m^(-2)·a^(-1. indicated a decreasing trend from southeast to northwest in terms of spatial distribution.(2)The gravity centers of vegetation NPP in 2000-201. were mainly concentrated in Zhongdian *** the study period,the gravity center of vegetation NPP moved northward,which indicated that the increment and increasing rate of vegetation NPP in the northern parts were greater than that of the southern areas.(3)The vegetation NPP showed a moderately positive correlation with temperature,accumulated temperature(>1.℃),and sunshine,while there was an overall negative relationship between NPP and precipitation.(4)The dominant factors and interactive dominant factors changed in different subregions over different segments of the study *** dominant factors of most sub-regions in Hengduan mountain were natural factors,and the climate change factors played an increasingly greater role over the 1. years of the study period.

关键词： Vegetation NPP Spatial-temporal distribution Driving factors Geographic detector Land use change

川东北元坝地区长兴组钠长石的发现及地质意义

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矿物岩石地球化学通报 2016年第5期35卷 917-924页

作者：高鱼伟李国蓉吴亚军张小青周吉羚雷和金陈兰朴彭博朱永源成都理工大学油气藏地质及开发工程国家重点实验室成都610059 中国石化西南油气分公司勘探开发研究院成都610041 威远县地质环境监测站四川威远642450 中国地质科学院地质力学研究所北京100081

为探讨川东北元坝地区长兴组岩石中钠长石矿物的成因,对其进行了利用电子显微镜、能谱仪及稀土元素测定等分析测试。结果表明,显微镜下钠长石主要呈分散状分布,明显的聚片双晶现象,交代早期成岩矿物;钠长石与石英、黄铁矿伴生;稀土元素... 详细信息

为探讨川东北元坝地区长兴组岩石中钠长石矿物的成因,对其进行了利用电子显微镜、能谱仪及稀土元素测定等分析测试。结果表明,显微镜下钠长石主要呈分散状分布,明显的聚片双晶现象,交代早期成岩矿物;钠长石与石英、黄铁矿伴生;稀土元素总量较低,分布曲线较缓,轻稀土相对富集、重稀土元素相对亏损,正Eu异常。研究认为,钠长石的成因与深部热液活动有关。根据川东北地区晚二叠世拉张构造背景,推测其是在二叠世晚期峨眉地裂运动玄武岩喷发的构造背景下生成的,钠长石的发现为研究该区长兴期构造、岩浆活动、"热事件"等研究具有重要的地质意义。

关键词：长兴组钠长石热液四川

Major transgression during Late Cretaceous constrained by basin sediments in northern Africa： implication for global rise in sea level

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Frontiers of Structural and Civil Engineering 2017年第4期11卷 740-750页

作者： Kaixuan AN Hanlin chen Xiubin LIN Fang WANG Shufeng {1. Zhixin wen Zhaoming WANG Guangya zhang Xiaoguang TONG School of Earth sciences Zhejiang University Hangzhou 310027 China Research Center for Structures in Oil- and Gas-Bearing Basins Ministry of Education Hangzhou 310027 China Research institute of Petroleum Exploration and Development PetroChina Co. Ltd Beijing 100083 China china National Oil and Gas Exploration and Development Corporation Beijing 100083 China

The global rise in sea level during the Late Cretaceous has been an issue under discussion by the international geological community. Despite the signifi- cance, its impact on the deposition of continental basins is not well known. This paper presents the systematic review on stratigraphy and sedimentary facies compiled from 22 continental basins in northern Africa. The results indicate that the region was dominated by sediments of continental facies during Early Cretaceous, which were replaced by deposits of marine facies in Late Cretaceous. The spatio- temporal distribution of sedimentary facies suggests marine facies deposition reached as far south as Taou- deni-Iullemmeden-Chad-A1.Kufra-Upper Egypt basins during Turonian to Campanian. These results indicate that northern Africa under{1.t significant transgression during Late Cretaceous reaching its peak during Turonian to Coniacian. This significant transgression has been attributed to the global high sea-level during this time. Previous studies show that global rise in sea level in Late Cretaceous may have been driven by an increase in the volume of ocean water （attributed to high C02 concentra- tion and subsequently warm climate） and a decrease in the volume of the ocean basin （attributed to rapid production of oceanic crust and seamounts）. Tectonic mechanism of rapid production of oceanic crust and seamounts could play a fimdamental role in driving the global rise in sea level and subsequent transgression in northern Africa during Late Cretaceous.

关键词： global sea-level changes Late Cretaceous,transgression sedimentary facies northern Africa

阿拉斯加北坡盆地成藏组合划分与资源潜力评价

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现代地质 2024年第2期38卷 322-334页

作者：李刚孟秋含张凯逊白国平胡靖靖邱海华陈君中国石油大学(北京)地球科学学院北京102249 中国石油大学(北京)油气资源与工程全国重点实验室北京102249 中国地质大学(北京)能源学院北京100083 中海油研究总院有限责任公司北京100028 中国地质科学院地质力学研究所北京100081

位于北极地区的阿拉斯加北坡盆地(North Slope Basin, Alaska)是全球最具有勘探潜力的盆地之一。对该盆地进行科学研究,有助于提升对北极地区含油气远景的认知,对于我国在该地区能源战略的制定具有基础性意义。本文基于埃信华迈(IHS Mar... 详细信息

位于北极地区的阿拉斯加北坡盆地(North Slope Basin, Alaska)是全球最具有勘探潜力的盆地之一。对该盆地进行科学研究,有助于提升对北极地区含油气远景的认知,对于我国在该地区能源战略的制定具有基础性意义。本文基于埃信华迈(IHS Markit)最新数据资料,在盆地油气地质特征分析的基础上,进行含油气系统和成藏组合划分与研究。以成藏组合为评价单元,对盆地待发现油气资源量进行评估,并优选出有利勘探区带。结果表明,阿拉斯加北坡盆地已发现油气藏主要分布于巴罗(Barrow)穹隆,该构造单元内的油气储量占盆地总储量的77.3%;油气主要储于白垩系和三叠系储集层,两者分别储集了盆地内44.0%和45.8%的油气储量。盆地内主要发育中生界复合含油气系统、新生界含油气系统和石炭系含油气系统。中生界复合含油气系统可划分出古近系—新近系、白垩系、侏罗系、三叠系和石炭系5个成藏组合。盆地平均待发现可采资源量为36943.8 MMbbl(百万桶,1.=1.8.98 L)石油、7971..6 Bcf(十亿立方英尺,1.尺=30.48 cm)天然气和262.1.MMbbl凝析油,合计50491.2 MMboe(百万桶油当量),其中石油占73.1.,天然气占26.3%,凝析油占0.6%。根据本文的研究,优选出2个Ⅰ类有利区带和4个Ⅱ类有利区带。

关键词：阿拉斯加成藏要素成藏组合资源评价有利区带

Research progress and challenges of natural gas hydrate resource evaluation in the South china Sea

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Petroleum Science 2022年第1期19卷 13-25页

作者： Zhi Xu Tao Hu Xiong-Qi Pang En-Ze Wang Xiao-Han Liu Zhuo-Ya Wu Di chen Chang-Rong Li Xing-{1. zhang Tong Wang State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum(Beijing)Beijing102249China College of Geosciences China University of Petroleum(Beijing)Beijing102249China School of Earth&Space sciences Peking UniversityBeijing100871China Research institute of Petroleum Exploration&Development CNPCBeijing100083China

As an efficient clean energy,natural gas hydrate(NGH)has become a hot topic in recent ***1.90 s,china has made great achievements and progress in NGH exploration in the South{1. Sea(SCS),including determination of the favorable distribution areas and favorable strata thickness,identification of the dual source for accumulation,evaluation of the prospective gas contents,verification of the widespread existence,and confirmation of the technical recoverability of NGH ***,there are three major challenges in the NGH ***,all the 24 national key and major projects in the SCS focused on trial production engineering and geological engineering in the past 20 years,while 8 of the 1. international NGH research projects focused on resource ***,resource evaluation methods are outdated and some parameter selection are ***,the existing resource evaluation results are low-level with a great uncertainty,and cannot be used to guide NGH exploration and production or strategic *** improve the evaluation of NGH resources in the SCS,future researches should focus on four aspects:(1.improve the research on the criterion of the objective existence of NGH and the method of prediction and evaluation;(2)apply new theories and methods from the global NGH research;(3)boost the research on the difference and correlation of the conditions of hydrocarbon migration and accumulation in different basins;(4)innovate the theory and method of NGH resource potential evaluation.

关键词： South china Sea Natural gas hydrate Oil and gas resource evaluation Comprehensive exploration of oil and gas Oil and gas development strategy

Assessment of geological Security and Integrated Assessment Geo-environmental Suitability in Worst-hit Areas in {1.chuan Quake

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Acta Geologica Sinica(English Edition) 2009年第4期83卷 816-825页

作者： LI wenpeng wen Dongguang ZHOU Aiguo SUN Xiaoming MENG Hui SHI Jusong chen Zongyu zhang Liqin FENG Xiaoming LIU Changli ZHOU Jianwei china {1. of Geo-Environmental Monitoring Beijing 100081 china {1. Survey Beijing 100037 institute of {1. China Academy of Geological Science Beijing 100081 Tianjin geological Survey Center of CGS Tianjin 300170 geomechanics {1. of Chinese geological academy Beijing 100086 Nanjing geological Survey Center of CGS Nanjing 210016 The institute of Hydrogeology and Environmental Geology CAGS Shi Jiazhuang 050061

The wenchuan earthquake in 2008 and geo-hazards triggered by the earthquake caused large injuries and deaths as well as destructive damage for infrastructures like construction, traffic and electricity. It is urgent to select relatively secure areas for townships and cities constructed in high mountainous regions with high magnitude earthquakes. This paper presents the basic thoughts, evaluation indices and evaluation methods of {1. security evaluation, water and land resources security demonstration and integrated assessments of geo-environmental suitability for reconstruction in alp and ravine with high magnitude earthquakes, which are applied in the worst-hit areas （1. counties）. The integrated assessment shows that：（1. located in the Longmenshan fault zone, the evaluated area is of poor regional crust stability, in which the unstable and second unstable areas account for 79% of the total; （2） the geo-hazards susceptibility is high in the evaluation area. The spots of geo-hazards triggered by earthquake are mainly distributed along the active fault zone with higher distribution in the moderate and high mountains area, in which the areas of high and moderate susceptibility zoning accounts for 40.1. of the total; （3） {1. security is poor in the evaluated area, in which the area of the unsuitable construction occupies 73.1., whereas in the suitable construction area, the areas of {1. security, second security and insecurity zoning account for 8.3 %, 9.3% and 9.3 % of the evaluated area respectively; （4） geo-environmentai suitability is poor in the evaluated area, in which the areas of suitability and basic suitability zoning account for 3.5% and 7.3% of the whole evaluation area.

关键词： wenchuan earthquake geological security carrying capacity of water and land resources geo-environmental suitability