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| 1 | Types and Characteristics of the Lower Silurian Shale Gas Reservoirs in and Around the Sichuan Basin显示文摘This study analyzed the characteristics and types of the Lower Silurian shale gas reservoirs in and around Sichuan Basin through field observations, slices, Ar-ion-beam milling, scanning electron microscopy, and x-ray diffraction analysis of 25 black shale outcrops and samples. Two main types of shale gas reservoirs were determined, i.e., fractures and pores. Fractures were classified into five categories, i.e., giant, large, medium, small, and micro, according to the features of the shale gas reservoirs, effect of fracture on gas accumulation, and fracture nature. Pore types include organic matter pores, mineral pores(mineral surface, intraparticle, interparticle, and corrosional pore), and nanofractures. The various fracture types, fracture scales, pore types, and pore sizes exert different controls over the gas storage and production capacity. Pores serve as a reservoir for gas storage and, the gas storage capacity can be determined using pores; fractures serve as pathways for gas migration, and gas production capacity can be determined using them. | NIE Haikuan ZHANG Jinchuan JIANG Shengling | 2015 | Acta Geologica Sinica(English Edition)2015，89，6： | 17 |
| 2 | 中国地质源温室气体释放近十年研究概述显示文摘地质源温室气体是指固体地球通过各种地质作用向大气圈释放的温室气体,是固体地球与大气之间物质交换(地气交换)的重要形式,主要包括火山喷发和地热活动、断裂带构造运动、油气渗漏、天然气水合物分解、煤自燃、碳酸盐岩风化等多种地质作用过程所释放的二氧化碳、甲烷等气体。实际上,地气交换是重要的地质作用,是地球各圈层物质循环和能量交换的基本载体和重要动力学机制。全球气候变化和温室效应是人类面临的巨大挑战,地质源温室气体的类型与来源、释放机理与过程、释放通量与大气温室效应等的调查和研究已成为当今地球系统科学的研究热点和发展方向之一,对于应对全球变化和温室效应具有重要的科学意义。中国科学家积极参与和适时开展地质源温室气体调查研究,对中国大陆部分火山和地热区、地震断裂带、含油气区和泥火山等释放的温室气体进行了初步观测与调查,在地质源温室气体的地球化学组成、释放通量等方面取得了一些成果,这些工作为进一步的深入研究奠定了良好基础。 | 郑国东 赵文斌 陈志 胥旺 宋之光 李琦 徐胜 郭正府 马向贤 梁明亮 王云鹏 | 2021 | 矿物岩石地球化学通报2021，40，6： | 8 |
| 3 | 含油气盆地地质甲烷释放研究综述显示文摘目前地质甲烷在国际上引起了广泛的关注。地质甲烷的释放在整个大气甲烷的源与汇的研究具有重要的意义。它既为不含放射性^(14)C甲烷源缺失部分提供了可能的解释,也为全球气候变暖的研究提供了科学依据。含油气盆地的甲烷是地质甲烷中的重要组成部分。本文概述了国内外含油气盆地甲烷释放的研究,详述了含油气盆地甲烷的源以及运移机制;阐述了目前对于地质甲烷研究的常用监测手段及其优缺点;并对全球含油气盆地的甲烷通量估算进行了总结。但是由于含油气盆地甲烷的通量估算是建立在区域性的部分甲烷通量测试基础上,仍然具有较大的不确定性。有效地结合甲烷的各种监测手段,在全球更多更广区域开展含油气盆地CH_4通量测量,是未来的发展方向和热点。我国是油气生产的大国之一,但相关的探究很少,因此,在我国开展含油气盆地甲烷释放通量的研究将有助于进一步完善全球含油气盆地甲烷数据库,对全球甲烷的源和汇的精确估算具有重要作用和意义。 | 许跃 唐俊红 王国建 王卫海 徐灿 | 2016 | 地质学报2016，90，3： | 7 |
| 4 | Geological emission of methane from the Yakela condensed oil/gas field in Talimu Basin, Xinjiang, China显示文摘A static flux chamber method was applied to study natural emissions of methane into the atmosphere in the Yakela condensed oil/gas field in Talimu Basin, Xinjiang, China. Using an online method, which couples a gas chromatography/high-temperature conversion/isotope ratio mass spectrometry (GC/C/MS) together, the 13C/12C ratios of methane in the flux chambers were measured. The results demonstrated that methane gases were liable to migrate from deep oil/gas reservoir to the surface through microseepage and pervasion, and that a part of the migrated methane that remained unoxidized could emit into the atmosphere. Methane emission rates varied less in the oil/gas field because the whole region was homogeneous in geology and geography, with a standard deviation of less than 0.02 mg/(m2·h). These were the differences in methane emission flux in the day and at night in the oil/gas field. The maximum methane emission flux reached 0.15 mg/(m2·h) at 5:00-6:00 early in the morning, and then decreased gradually. The minimum was shown 0.10 mg/(m2·h) at 17:00-18:00 in the afternoon, and then increased gradually. The daily methane released flux of the study area was 2.89 mg/(m2·d), with a standard deviation of 0.43 mg/(m2·d), using the average methane flux of every hour in a day for all chambers. δ13C of methane increased with the increase of methane concentration in the flux chambers, further indicating that the pyrogenetic origin of methane was come from deep oil/gas reservoirs. | Tang Junhong Bao Zhengyu Xiang Wu Gou Qinghong | 2008 | Journal of Environmental Sciences2008，20，9： | 6 |
| 5 | 雅克拉凝析油气田油水界面甲烷天然释放及其源示踪显示文摘为评价油气田天然释放CH4对大气CH4源与汇的贡献,采用静态箱法实地监测了新疆塔里木盆地雅克拉凝析油气田油水界面处甲烷的释放通量,并采用在线大气甲烷碳同位素制样系统与稳定同位素质谱仪联机测试了通量箱甲烷碳同位素组成.结果表明,由于油水界面边水活跃程度不同,甲烷通量在空间变化很大,最高的日释放通量达2.28mg/m2.d,最低-1.32mg/m2.d,日平均释放通量0.51mg/m2.d,标准偏差达1.23mg/m2.d.油水界面处甲烷通量日变化规律基本相同,凌晨至清晨时达到相对高点,随后逐渐降低,下午至傍晚时段为释放低值甚至负值,夜晚时分又逐渐增加.通量箱中甲烷δ13C组成白天随甲烷浓度的线性降低而逐渐偏重,夜晚δ13C随着甲烷浓度的线性增加而逐渐偏重.可见,油水界面边水活跃,其上方的土壤形成相对氧化的环境,油气藏甲烷及烃类在向地表运移的过程中不断被土壤吸收氧化,仅有少量运移至地表并逸散到大气中,局部甚至均被吸收氧化,而成为大气甲烷的汇. | 唐俊红 鲍征宇 向武 | 2009 | 地球科学(中国地质大学学报)2009，34，5： | 2 |
| 6 | Kinetic Modeling the Formation of Low-mature Gases and Analysis of the Possibility to Be Accumulated显示文摘摘要:目前,浅气体在探索和生产由于低费用收到了许多注意。低成熟的气体作为到浅气体的一重要起源,转弯是一个重要研究话题。低成熟的气体的现在的理解在一些地质的案例以内被限制,并且很少实验室学习被报导了。因此,低成熟的气体的潜力和人物是别放晴到现在。这里,二件早熟的样品(一煤和另外的页岩) 是在一个金限制系统的 pyrolyzed。包括烃气体和非烃气体的气体的部件被分析。基于运动建模,低成熟的气体的形成被建模。结果证明在低成熟舞台期间,大约 178 mL/gTOC 气体从煤从页岩和 100 mL/gTOC 被产生。三分之二是象 H2S 和 CO2 那样的非烃气体到四分之三产生气体。为二件样品的 C15 的全部的收益是几乎一样, 3040 mL/gTOC,而是单个气体的烃是不同的。页岩有低得多的 C1 但是更高的 C25,而煤有更高的 C1 但是更低的 C25。在低成熟的舞台期间形成的烃气体是很湿的。甲烷的稳定的碳同位素比率从 ?40% 到 ?50%(PDB ) ,在有为以前的研究人员总结的低成熟的气体的实验标准的好坚固性。产生人物建议低成熟的气体能被积累形成一座经济煤气的水库,但是他们中的大多数仅仅作为联系气体发生。 | SHUAI Yanhua WANG Hui ZHANG Shuichang SU Aiguo | 2008 | Acta Geologica Sinica(English Edition)2008，82，3： | 2 |
| 7 | Methane in soil gas and its transfer to the atmosphere in the Yakela condensed gas field in the Tarim Basin,Northwest China显示文摘In this study,by analyzing CH4 concentration and δ13CCH4 in soil-gas profiles,the potentials of CH4 gas transfer from ground to atmosphere were studied at four representative sectors in the Yakela condensed gas field in the Tarim Basin,Xinjiang,China.These are:1) the oil-gas interface sector,2) fault sector,3) oil-water interface sector,4) an external area.Variation in CH4 in soil-gas profiles showed that CH4 microseepage resulted from the migration of subsurface hydrocarbon from deep-buried reservoirs to the earth's surface.It was found that CH4 from deep-buried reservoirs could migrate upwards to the surface through faults,fissures and permeable rocks,during which some CH4 was oxidized and the unoxidized methane remained in the soil or was emitted into the atmosphere.The lowest level of CH4 at the soil-gas profile was found at the CH4 gas-phase equilibrium point at which the CH4 migration upwards from deep-buried reservoirs and the CH4 diffusion downwards from the atmosphere met.The δ13CCH4 and ethane,propane in soil gas exhibited thermogenic characteristics,suggesting the occurrence of CH4 microseepage from deep-buried reservoirs.A linear correlation analysis between CH4 concentrations in soil gas and temperature,moisture,pH,Eh,Ec and particle size of soil indicated that both soil Eh and soil temperature could affect CH4 concentration in soil gas while soil pH could indirectly influence soil methanotrophic oxidation via impacting soil Eh. | Tang Junhong Wang Guojian Yin Haoyong Li Hongjun | 2013 | Petroleum Science2013，10，2： | 2 |
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