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Accumulation conditions and key technologies for exploration and development of Qinshui coalbed methane field

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Petroleum Research 2018年第4期3卷 320-335页

作者： Yan Song xingzhi ma Shaobo Liu Lin Jiang Feng Hong Yi Qin Unconventional Gas Research Institute of China University of Petroleum Beijing102249China Research Institute of Petroleum Exploration and Development PetroChinaBeijing100083China Petrochina Huabei Oilfield Company Hebei062552China

The Qinshui Basin has been explored for more than 60 years through two stages of oil and gas reconnaissance survey and exploration&development of coalbed methane(CBM),it has become the largest CBM industrialization base in China and also is a model which successfully realize commercialization of CBM of high rank coal-bearing basin in the *** the high-rank coal field is characterized by low pressure,low permeability,low saturation and strong heterogeneity,the exploration practice and research show that the accumulation conditions of CBM reservoir in the Qinshui Basin are *** main productive intervals,No.15 coal seam of Taiyuan Formation and No.3 coal seam of Shanxi Formation respectively belong to the epicontinental-sea carbonate platform sedimentary system and the epicontinental-sea shallow-water delta sedimentary *** coal seam has large thickness,and is mostly composed of humic coal and mainly contains *** by tectonic thermal events in the Yanshanian period,the coal rank is high,the adsorption capacity is strong,and the gas content is *** of the CBM reservoir goes through three stages including two stages of hydrocarbon generation,gas phase transformation and sealing of hydrodynamics and roof and *** view of the characteristics of the Qinshui Basin topography and the high rank coal,a series of key technologies for exploration and development are developed,including mountainous region seismic acquisition,processing and interpretation technology,drilling and completion technology of multiple wells,drilling and completion technology of multiple horizontal wells dominated by compound V type,deplugging secondary fracturing stimulation technology,control technology of high rank CBM drainage,and CBM gathering and transportation technology,which effectively supports the scale and industrialization development of high rank CBM in the Qinshui Basin.

关键词： Coal bed methane High rank Accumulation condition Exploration and development technology Qinshui Basin

Revisiting Rhenium-Osmium Isotopic Investigations of Petroleum Systems: From Geochemical Behaviours to Geological Interpretations

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Journal of Earth Science 2021年第5期32卷 1226-1249页

作者： Shao-Jie Li Xuan-Ce Wang Simon A.Wilde Zhuyin Chu Chaofeng Li Sheng He Keyu Liu xingzhi ma Yuxiang Zhang School of Earth Sciences Yunnan UniversityKunming 650500China The School of Earth Science and Resources Chang'an UniversityXi'an 710054China ARC Centre of Excellence for Core to Crust Fluid Systems and The Institute for Geoscience Research Department of Applied GeologyCurtin UniversityPerth 6845Australia State Key Laboratory of Lithospheric Evolution Institute of Geology and GeophysicsChinese Academy of SciencesBeijing 100029China Key Laboratory of Tectonics and Petroleum Resources Ministry of EducationChina University of GeosciencesWuhan 430074China School of Geosciences China University of Petroleum(Huadong)Qingdao 266555China PetroChina Research Institute of Petroleum Exploration&Development Beijing 100083China Australise Resources and Environment Solutions Wattle GrovePerth 6107Australia

Recent decades have witnessed an increasing number of studies investigating petroleum systems with the application of rhenium-osmium(Re-Os) isotopic geochemistry. Here, we review the use of the 187 Re-187 Os geochronometer with respect to the geochemical behaviour of rhenium and osmium in hydrocarbon-related geological processes. The Re-Os budget in hydrocarbon source rock predominantly originates from natural water columns during its deposition. Open seawater tends to have a homogeneous Os isotopic composition because its residence time in seawater is longer than the time taken for ocean mixing. On the contrary, restricted water bodies(e.g., lakes) may have heterogeneous Os isotopic compositions due to the greater amount of terrigenous input. Hydrogenous Re and Os atoms are sequestered from the water body into sedimentary organic matter and transferred into crude oil through thermal maturation of organic matter. Thermal maturation likely does not significantly alter the Re-Os isotopic systematics of the source rock as a Re-Os isochron age of 442±21 ma(2σ) is yielded in this study for over matured source rocks within the Silurian Longmaxi Formation from the Sichuan Basin. Re-Os atoms are mainly hosted by the highly polar/aggregating/aromatic asphaltenes in hydrocarbons, possibly chelating with organic complexes or occurring as metalloporphyrins. Resin and aromatic hydrocarbons also contribute to the Re-Os budget, but are 2 to 3 orders of magnitude lower than that of asphaltenes, whereas saturates do not contain appreciable Re-Os contents. The distribution of Re-Os atoms in hydrocarbons is heterogeneous because the duplicate analysis of pure single bitumen samples yields similar ^(187)Os/^(188)Os ratios whereas variable ^(187)Re/^(188)Os ratios. The Re-Os system in crude oils can be reset during transport away from the source rocks, with Os-rich organic fractions more readily expelled than Re-rich fractions. Contact with metal-rich fluids(e.g., hydrothermal fluid) or

关键词： Re-Os isotope system petroleum system investigation geochemical behaviour of Re and Os in petroleum system

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中国西部叠合盆地构造强度定量表征及其应用

石油学报 2009年第5期30卷 642-647页

作者：康德江马行陟中国石油大庆油田有限责任公司勘探开发研究院黑龙江大庆163712 中国石油大学盆地与油藏研究中心北京102249

中国西部复杂叠合盆地成藏期后的构造运动十分剧烈,直接导致大量油气藏发生调整改造,甚至破坏。构造变动强度是一个用以衡量区域构造运动对成藏期后油气藏调整改造程度大小的重要参数。研究中采用了易于获得的两个地质参数,即剥蚀率和... 详细信息

中国西部复杂叠合盆地成藏期后的构造运动十分剧烈,直接导致大量油气藏发生调整改造,甚至破坏。构造变动强度是一个用以衡量区域构造运动对成藏期后油气藏调整改造程度大小的重要参数。研究中采用了易于获得的两个地质参数,即剥蚀率和地层变形程度作为定量化指标,拟合出构造变动强度的定量化公式。构造强度中等地区由于易于形成一定规模的正向圈闭构造,封盖条件得以保证,同时有利于输导体系的建立,因此有利于油气藏的聚集和再富集;而构造强度过大和过小,则不利于油气的调整富集成藏。与准噶尔盆地的油气分布对照得到,构造变动强度的定量化表征基本上可以如实和准确地反映出构造变动对油气调整改造的影响程度。

关键词：叠合盆地构造强度定量化指标调整改造剥蚀率变形程度

中高煤阶煤储层吸附能力演化历史定量恢复——以鄂尔多斯盆地韩城地区为例

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石油学报 2014年第6期35卷 1080-1086页

作者：马行陟宋岩柳少波姜林洪峰中国石油勘探开发研究院北京100083 中国石油天然气集团公司盆地构造与油气成藏重点实验室北京100083 中国石油大学非常规天然气研究院北京102249

中国的中高煤阶含煤盆地均经历了多次沉降和抬升,开展地质时期煤储层吸附能力演化历史研究对于认识煤层气的富集和成藏具有重要意义。根据中高煤阶煤储层样品的高温高压吸附实验,建立了煤储层吸附能力演化历史分析方法,恢复了鄂尔多斯... 详细信息

中国的中高煤阶含煤盆地均经历了多次沉降和抬升,开展地质时期煤储层吸附能力演化历史研究对于认识煤层气的富集和成藏具有重要意义。根据中高煤阶煤储层样品的高温高压吸附实验,建立了煤储层吸附能力演化历史分析方法,恢复了鄂尔多斯盆地韩城地区主力煤层的吸附演化过程。研究表明,中高煤阶煤储层的吸附量受多种因素控制,吸附量与压力、热演化程度呈正相关,与温度、水分、灰分和挥发分呈负相关关系。在数学分析的基础上建立了基于温度、压力和热演化程度三参数Langmuir扩展的吸附量预测模型。结合韩城地区埋藏史和热史,恢复了研究区主力煤储层吸附演化过程,指出韩城地区主力煤储层吸附量随地质历史时期大致经历了低吸附稳定阶段、吸附增加阶段和高吸附稳定阶段3个阶段演化过程。

关键词：中高煤阶煤层气吸附能力演化韩城地区

Upper Paleozoic total petroleum system and geological model of natural gas enrichment in Ordos Basin, NW China

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Petroleum Exploration and Development 2023年第2期50卷 281-292页

作者： JIANG Fujie JIA Chengzao PANG Xiongqi JIANG Lin ZHANG Chunlin ma xingzhi QI Zhenguo CHEN Junqing PANG Hong HU Tao CHEN Dongxia State Key Laboratory of Petroleum Resources and Prospecting Beijing 102249China College of Geoscience China University of Petroleum(Beijing)Beijing 102249China PetroChina Research Institute of Exploration and Development Beijing 100083China Key Laboratory of Gas Reservoir Formation and Development CNPCLangfang 065007China Key Laboratory of Basin Structure&Hydrocarbon Accumulation CNPCBeijing 100083China

Based on the analysis of Upper Paleozoic source rocks, source-reservoir-caprock assemblage, and gas accumulation characteristics in the Ordos Basin, the gas accumulation geological model of total petroleum system is determined. Then, taking the Carboniferous Benxi Formation and the Permian Taiyuan Formation and Shanxi Formation as examples, the main controlling factors of gas accumulation and enrichment are discussed, and the gas enrichment models of total petroleum system are established. The results show that the source rocks, faults and tight reservoirs and their mutual coupling relations control the distribution and enrichment of gas. Specifically, the distribution and hydrocarbon generation capacity of source rocks control the enrichment degree and distribution range of retained shale gas and tight gas in the source. The coupling between the hydrocarbon generation capacity of source rocks and the physical properties of tight reservoirs controls the distribution and sweet spot development of near-source tight gas in the basin center. The far-source tight gas in the basin margin is mainly controlled by the distribution of faults, and the distribution of inner-source, near-source and far-source gas is adjusted and reformed by faults. Generally, the Upper Paleozoic gas in the Ordos Basin is recognized in four enrichment models: inner-source coalbed gas and shale gas, inner-source tight sandstone gas, near-source tight gas, and far-source fault-transported gas. In the Ordos Basin, inner-source tight gas and near-source tight gas are the current focuses of exploration, and inner-source coalbed gas and shale gas and far-source gas will be important potential targets in the future.

关键词： Upper Paleozoic tight gas total petroleum system gas accumulation characteristics gas enrichment model Or-dos Basin

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沁水煤层气田成藏条件及勘探开发关键技术

石油学报 2019年第5期40卷 621-634页

作者：宋岩马行陟柳少波姜林洪峰秦义中国石油大学(北京)非常规油气科学技术研究院北京102249 中国石油勘探开发研究院北京100083 中国石油华北油田公司河北任丘062552

沁水盆地历经了油气普查和煤层气勘探开发2个阶段(共60余年)的探索,现已成为中国最大的煤层气产业化基地,也是世界上高煤阶含煤盆地煤层气成功实现商业化的典范。尽管高煤阶煤层气田具有低压力、低渗透率、低饱和度、非均质性强的"三低... 详细信息

沁水盆地历经了油气普查和煤层气勘探开发2个阶段(共60余年)的探索,现已成为中国最大的煤层气产业化基地,也是世界上高煤阶含煤盆地煤层气成功实现商业化的典范。尽管高煤阶煤层气田具有低压力、低渗透率、低饱和度、非均质性强的"三低一强"特征,但勘探实践和研究表明,沁水盆地煤层气成藏条件优越,主力产层太原组15#煤层和山西组3#煤层为陆表海碳酸盐台地沉积体系及陆表海浅水三角洲沉积体系,煤层厚度大、多由腐殖煤类构成,主要含镜质组。受燕山期构造热事件影响,煤层煤阶高、吸附能力强、含气量大。煤层气成藏经历了两次生烃、气体相态转化和水动力控制顶、底板封闭的3个阶段。针对沁水盆地地形及高煤阶特征,形成了山地地震采集、处理和解释技术,丛式井钻完井技术,"复合V型"为主的多水平井钻完井技术,解堵性二次压裂增产技术,高煤阶煤层气排采控制工艺,煤层气集输技术等一系列关键勘探开发技术,有效支撑了沁水盆地高煤阶煤层气的规模开发和工业化发展。

关键词：沁水盆地煤层气高煤阶成藏条件勘探开发技术

甲烷裂解——中国南方寒武系页岩含气量低的一个重要原因

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天然气地球科学 2024年第5期35卷 902-916页

作者：米敬奎帅燕华姜林马行陟提高石油采收率国家实验室北京100083 中国石油勘探开发研究院北京100083

对中国南方页岩气地球化学特征统计分析结果表明,寒武系筇竹寺组页岩气除了具有与志留系龙马溪组页岩气相似的干燥系数极高(>98.9%)、碳同位素倒转的地球化学特征外,还具有N_(2)含量高,页岩含气量低的特征。在对目前各种高过成熟阶段天... 详细信息

对中国南方页岩气地球化学特征统计分析结果表明,寒武系筇竹寺组页岩气除了具有与志留系龙马溪组页岩气相似的干燥系数极高(>98.9%)、碳同位素倒转的地球化学特征外,还具有N_(2)含量高,页岩含气量低的特征。在对目前各种高过成熟阶段天然气碳同位素倒转成因理论分析的基础上,提出甲烷裂解过程的聚合作用是高过成熟阶段天然气碳同位素倒转的重要原因。这一观点得到了CH_(4)+N_(2)混合气体及碳同位素正序天然气裂解模拟实验验证。不同条件下CH_(4)+N_(2)混合气体裂解模拟实验结果证明,甲烷大量裂解时氮气也不会分解,且页岩对甲烷的裂解具有催化作用。结合有机质结构及页岩储层导电性能随成熟度的演化、不同结构烃类分子裂解键能的对比,认为有机质在生气结束后(甲基完全脱落)的强烈石墨化作用会导致页岩电阻率明显降低,并伴随着甲烷的裂解。相关模拟实验结果表明有机质演化过程中氮气生成虽主要发生在烃类气体生成将近结束阶段之后(R_(0)>3.0%),但氮气生成量与有机质整个演化过程烃类气体的生成量相比非常少。寒武系页岩气地球化学特征、生烃模拟实验结果、甲烷与天然气的裂解模拟实验、寒武系页岩含气量与页岩储层物性及页岩成熟度综合研究结果表明,除了地质保存条件外,甲烷裂解应是寒武系(特别是R_(0)>3.0%区域)页岩气低产及高含N_(2)的另一个重要因素。

关键词：寒武系页岩气氮气含量成熟度演化甲烷裂解

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基于智能合约技术的数字化乡村商业模式研究

商业观察 2023年第32期9卷 88-90页

作者：马行智菲律宾巴利瓦格大学布拉干巴利瓦格3006

随着数字技术的迅猛发展,数字化乡村已成为当前乡村振兴发展的重要方向。通过文献回顾和案例分析,探讨了在智能合约技术推广应用的背景下我国数字化乡村商业业态的趋势、作用、现状和路径。研究发现,基于智能合约技术的数字化乡村商业... 详细信息

随着数字技术的迅猛发展,数字化乡村已成为当前乡村振兴发展的重要方向。通过文献回顾和案例分析,探讨了在智能合约技术推广应用的背景下我国数字化乡村商业业态的趋势、作用、现状和路径。研究发现,基于智能合约技术的数字化乡村商业模式具有可靠性高、不可篡改、支付安全高效、物流配送智能化管理等优势,可以实现农产品的全程追溯,为数字化乡村的发展提供了有力支撑。这一数字化乡村商业模式对乡村经济的转型升级和农村电商的发展具有积极意义,值得深入研究和推广。

关键词：智能合约数字化乡村商业模式

长江中下游成矿带物性结构揭示的成矿深部背景和过程

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地质通报 2024年第11期43卷 2044-2061页

作者：张昆刘磊马兴知杨雨凡中国地质科学院北京100037 自然资源部深地科学与探测技术实验室北京100037 自然资源部地球物理电磁探测技术重点实验室河北廊坊065000 东华理工大学江西南昌330013 中国地质大学湖北武汉430074 湖北省地质局地球物理勘探大队湖北武汉430056

长江中下游成矿带是中国重要的铁-铜多金属资源宝库,而成矿带岩石圈构造演化是成矿带成矿全过程和矿床预测的关键。然而,构造对岩浆-成矿作用深部背景和过程的控制仍存在较大争议,主要包括上地幔对流引起的岩石圈伸展和下地壳熔融,以及... 详细信息

长江中下游成矿带是中国重要的铁-铜多金属资源宝库,而成矿带岩石圈构造演化是成矿带成矿全过程和矿床预测的关键。然而,构造对岩浆-成矿作用深部背景和过程的控制仍存在较大争议,主要包括上地幔对流引起的岩石圈伸展和下地壳熔融,以及与古太平洋板块俯冲有关的应力体制转换和岩浆活动两类认识。而且,这一关键地质问题仍然缺乏地球物理深探测资料的约束。为此,基于自然资源部“深部矿产资源探测与评价创新团队”在成矿带主体地区获得的地球物理探测成果,本文分析了壳幔/岩石圈、地壳及上地壳/地壳浅表不同尺度的探测结果和物性模型,总结和补充了长江中下游成矿带成矿深部背景和过程的相关认识,并提出成矿带深部的陆内俯冲板片断离引发的地幔物质上涌控制成矿带成矿系统的深部物源和通道要素。此外,铁-铜成矿系统虽然具有统一的深部背景,但受控于板片下沉引起的应力体制转换,形成于随时间变化的不同构造背景和深部过程。

关键词：长江中下游成矿带物性结构成矿系统成矿深部背景和过程