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Impact of Reservoir Heterogeneity on Bitumen Content in the Mackay River Oil Sands,Athabasca(Canada)

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Acta Geologica Sinica(English Edition) 2024年第5期98卷 1285-1300页

作者： YANG Xiaofa YU Diyun WU Suwei REN Junhao cheng dingsheng HUANG Jixin YANG chengyu MA Guoqing LI Meijun Research Institute of Petroleum Exploration and Development PetroChinaBeijing 100083China China National Oil and Gas Exploration and Development Company Beijing 100034China National Key Laboratory of Petroleum Resources and Engineering China University of Petroleum(Beijing)Beijing 102249China

The Lower Cretaceous Manville Group of Upper Mc Murray Formation is one of the main bitumen reservoirs in *** this study,the relationship between reservoirs heterogeneity and bitumen geochemical characteristics were analyzed through core and microscopic observation,lab analysis,petrophysics and logging *** on the sedimentology framework,the formation environment of high-quality oil sand reservoirs and their significance for development were *** results indicate that four types lithofacies were recognized in the Upper Mc Murray Formation based on their depositional *** lithofacies reservoirs has unique physical properties,and is subject to varying degrees of degradation,resulting in diversity of bitumen content and geochemical *** tidal bar(TB)or tidal channel(TC)facies reservoir have excellent physical properties,which are evaluated as gas or water intervals due to strong *** reservoir of sand bar(SB)facies was evaluated as oil intervals,due to its poor physical properties and weak *** reservoir of mixed flat(MF)facies is composed of sand intercalated with laminated shale,which is evaluated as poor oil intervals due to its poor *** shale content in oil sand reservoir is very important for the reservoir physical properties and bitumen degradation *** the context of regional biodegradation,oil sand reservoirs with good physical properties will suffer from strong degradation,while oil sand reservoirs with relatively poor physical properties are more conducive to the bitumen preservation.

关键词： oil sands reservoir heterogeneity geochemical characteristics bitumen content Upper Mc Murray Formation Canada

A mild, configurable, flexible CoNi-LDH（v）/Zn battery based on H-vacancy-induced reversible Zn2+ intercalation

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Journal of Energy Chemistry 2025年第1期100卷 498-508页

作者： Xinyue cheng dingsheng Wu Hao Gao Qingqing Wang Pengfei Lv Sam S.Yoon Qufu Wei Key Laboratory of Eco-textiles Ministry of Education Jiangnan University School of Mechanical Engineering Korea University

Flexible Zn-based batteries have attracted increasing research interest as essential components of wearable energy storage ***,the advancement of flexible aqueous Zn-based batteries based on Co-Ni layered double hydroxide （CoNi-LDH） as the cathode material is hampered by their poor cycling stability and the corrosiveness of alkaline ***,CoNi-LDH nanosheets enriched with H vacancies (CoNi-LDH（v）) were constructed on a flexible carbon cloth （CC） substrate via electrochemical deposition and *** Zn-based battery comprising CoNi-LDH（v）@CC as the cathode exhibited highly reversible conversion reactions and stable operation in 3 M ZnSO4electrolyte （pH=4）.The battery delivered an excellent specific capacity (225 mA h g-1,0.26 mA h cm-2),acceptable cycling stability（53.9%,900 cycles）,and high discharging *** abundant H vacancies served as active sites for the reversible intercalation of Zn2+and the extravasation of NO3-generated channels and space for Zn2+transport and storage,together enabling an excellent Zn2+storage ***,a sandwich-structured solid-state CoNi-LDH（v）@CC//Zn@CC battery was fabricated and was found to exhibit a noteworthy electrochemical performance and mechanical *** a proof of concept,the unencapsulated battery powered a digital watch under various deformation conditions and operated stably for 80 ***,the flexible battery displayed outstanding customizability,maintaining an open-circuit voltage of 1.42 V even after being cut *** proposed engineering strategy contributes to the realization of textiles with truly wearable energy-storage devices.

关键词： CoNi/Zn battery H vacancies Mild aqueous electrolyte Tailorable battery Wearable energy storage device

Exploration discovery and hydrocarbon accumulation characteristics of the Doseo strike-slip and inverted basin, Chad

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Petroleum Exploration and Development 2022年第2期49卷 247-256页

作者： DOU Lirong XIAO Kunye DU Yebo WANG Li ZHANG Xinshun cheng dingsheng HU Ying Research Institute of Petroleum Exploration and Development PetroChinaBeijing 100083China China National Oil and Gas Exploration and Development Corporation Beijing 100034China

Several international oil companies had conducted petroleum exploration, but failed to make any commercially viable discoveries in the Doseo Basin for over 30 years. In this article, an integrated analysis, based on the latest seismic and drilling data combined with exploration practice and tectonic, sedimentary as well as petroleum-geological characteristics of the basin, has been conducted with the aim to disclose the key factors of hydrocarbon accumulation and enrichment and then to find the potential petroleum plays. The Doseo Basin in Chad is a Meso-Cenozoic lacustrine rift basin developed on the Precambrian crystalline basement in the Central African Shear Zone. It is a half graben rift controlled by the strike-slip fault at the northern boundary, and can be divided into two sub-basins, an uplift and a slope. The basin experienced two rifting periods in the Cretaceous and was strongly inverted with the erosion thickness of 800–1000 m during the Eocene, and then entered the depression and extinction period. Structurally, a large number of normal faults and strike-slip faults are identified in the basin, and the boundary faults are inverted faults with normal at first. The main structural styles include inverted anticlines, fault noses, complex fault-blocks and flower structures. The Lower Cretaceous is the main sedimentary strata, which are divided into the Mangara Group, Kedeni, Doba and Koumra Formations from bottom to up. Two transgressive-regressive cycles developed in the Lower Cretaceous indicates with mainly lacustrine, fluvial, delta, braided-delta, fan-delta sandstone and mudstone. The effective source rock in the basin is the deep-lacustrine mudstone of the Lower Cretaceous containing the type Ⅰ and type Ⅱ;organic matters. Furthermore, Inverted anticlines and fault-complicated blocks comprise the main trap types and the Kedeni Uplift is the most favorable play, followed by the Northern Steep Slope and Southern Gentle Slope. Lateral sealing capacity of

关键词： Doseo Basin rift basin strike-slip inverted structure petroleum system hydrocarbon accumulation characteristics exploration discovery

苏丹Muglad盆地区域盖层对油藏特征的控制作用

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石油学报 2006年第3期27卷 22-26页

作者：窦立荣张志伟程顶胜中国石油天然气勘探开发公司北京100034

苏丹Muglad盆地是在中非剪切带右行走滑背景上发育起来的中-新生代陆内裂谷盆地.盆地的主力产层为下白垩统的Bentiu组,上覆的区域盖层是Darfur群,尤其是Aradeiba组的大套泥岩.盆地70%以上的探明石油可采储量分布在Bentiu-Darfur成藏组合... 详细信息

苏丹Muglad盆地是在中非剪切带右行走滑背景上发育起来的中-新生代陆内裂谷盆地.盆地的主力产层为下白垩统的Bentiu组,上覆的区域盖层是Darfur群,尤其是Aradeiba组的大套泥岩.盆地70%以上的探明石油可采储量分布在Bentiu-Darfur成藏组合中.通过地震反演预测了区域盖层的宏观分布,通过对20口探井测井资料的处理确定了盖层的封闭性.对部分井壁取芯样品的扫描电镜观察发现,存在宽度达10～30 μm的微裂缝,且这些微裂缝被伊利石或绿泥石等自生矿物充填.原油地球化学分析表明,Bentiu组油藏近中非剪切带原油密度大,生物降解严重;远离中非剪切带处的原油密度正常,生物降解程度降低直至消失.这说明后期的构造活动对油气藏的保存有明显的控制作用.

关键词：苏丹 Muglad盆地盖层封闭性含油气系统油气藏保存

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高酸值原油的成因与分布

石油学报 2007年第1期28卷 8-13页

作者：窦立荣侯读杰程顶胜黎茂稳潘校华中国石油天然气勘探开发公司北京100034 中国地质大学(北京) 北京100083 加拿大联邦地质调查局卡尔加里分部

原油酸值是表示原油中酸性物质总含量的参数,即中和1g原油所需要的KOH的数量。对世界大量原油酸值进行了调研,并根据酸值的大小将原油划分为正常原油、含酸原油、高酸值原油和特高酸值原油。其中将酸值高于1mg/g的原油称为高酸值原油。... 详细信息

原油酸值是表示原油中酸性物质总含量的参数,即中和1g原油所需要的KOH的数量。对世界大量原油酸值进行了调研,并根据酸值的大小将原油划分为正常原油、含酸原油、高酸值原油和特高酸值原油。其中将酸值高于1mg/g的原油称为高酸值原油。根据高酸值原油的成因,进一步划分出原生高酸值原油、次生生物降解型高酸值原油和混合型高酸值原油。研究发现,海相和湖相环境生成的原油,其酸值随生物降解程度的增加而增加的速率不同,湖相远高于海相。全球高酸值原油主要由生物降解作用形成,主要储量分布在前陆盆地的前缘地带,以大型地层圈闭油藏为主;其次分布在裂谷盆地、被动大陆边缘盆地和克拉通盆地含油气系统的边缘和浅层的各种背斜、断块和地层圈闭中。

关键词：原油酸值生物降解前陆盆地裂谷盆地

幔源CO_(2)对中非裂谷系油气成藏的影响:以Palogue油田为例

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地球科学 2024年第10期49卷 3488-3498页

作者：李威窦立荣文志刚程顶胜中海油研究总院有限责任公司北京100028 中国石油勘探开发研究院北京100083 长江大学资源与环境学院长江大学油气资源与勘探技术教育部重点实验室湖北武汉430100

Melut盆地Palogue油田的发现打开了中非裂谷系古近系勘探新方向,证实了Melut盆地北部凹陷为富油气凹陷.Palogue油田以下白垩统为主力烃源岩,古近系为主力油藏的成藏组合,幔源CO_(2)气体对油气的聚集和改造具有不可忽略的作用.通过对CO_... 详细信息

Melut盆地Palogue油田的发现打开了中非裂谷系古近系勘探新方向,证实了Melut盆地北部凹陷为富油气凹陷.Palogue油田以下白垩统为主力烃源岩,古近系为主力油藏的成藏组合,幔源CO_(2)气体对油气的聚集和改造具有不可忽略的作用.通过对CO_(2)气体、原油特征、包裹体特征进行研究,结合构造和烃源岩演化,分析CO_(2)气体与Palogue油气成藏之间的关系.结果表明:古近纪末-新近纪发生的幔源CO_(2)运移热事件对Palogue油田油气充注成藏具有重要影响.在构造-热事件作用下,烃源岩热演化迅速进入成熟阶段,发生强烈的生排烃作用,生成大量原油并融入超临界CO_(2)中,饱含原油的超临界CO_(2)快速穿层运移,发育大量高温混合烃类包裹体,即表现为异常高热事件下的快速成藏事件;饱含超临界CO_(2)的原油进入Palogue圈闭后,因地层温压条件的变化,CO_(2)气体开始向上逐层从原油中析出,携带轻质组分融入上层油藏中发生混合作用,由此导致垂向上原油物性发生一系列变化.

关键词： Melut盆地 Palogue油田成藏过程蒸发分馏作用石油地质学

New understanding and exploration direction of hydrocarbon accumulation in Termit Basin, Niger

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Petroleum Exploration and Development 2023年第2期50卷 268-280页

作者： YUAN Shengqiang DOU Lirong cheng dingsheng MAO Fengjun PAN Chunfu ZHENG Fengyun JIANG Hong PANG Wenzhu LI Zaohong PetroChina Research Institute of Petroleum Exploration&Development Beijing 100083China China National Oil and Gas Exploration and Development Corporation Beijing 100034China

Based on the seismic and drilling data, casting thin sections, geochemical analysis of oil and rock samples, and hydrocarbon generation history simulation, the hydrocarbon accumulation characteristics and exploration direction of Termit superimposed marine–continental rift basin are discussed. The Termit basin is superimposed with two-phase rifts(Early Cretaceous and Paleogene). The subsidence curves from two wells on the Trakes slope in the east of the basin show high subsidence rate in the Late Cretaceous, which is believed to be high deposition rate influenced by transgression. However, a weak rift may also be developed. The depositional sequences in the Termit basin were controlled by the Late Cretaceous marine transgression cycle and the Paleogene lacustrine transgression cycle, giving rise to two types of superimposed marine–continental “source-sink” deposits. The marine and continental mixed source rocks developed universally in the whole basinduring the marine transgression period, and are overlaid by the Paleogene Sokor 1 reservoir rocks and Sokor 2 caprocks developed during the lacustrine transgression period, forming the unique superimposed marine–continental basin in WCARS. The early low geothermal gradient in the Termit basin resulted in the late hydrocarbon generated by the source rock of Upper Cretaceous Yogou in Paleogene. Mature source rock of Upper Cretaceous Donga developed in the Trakes slope, so that the double-source-supply hydrocarbon and accumulation models are proposed for the Trakes slope in which formed the oil fields. Due to virtue of the newly proposed hydrocarbon accumulation model and the exploration activities in recent years in the Termit superimposed marine–continental rift basin, an additional effective exploration area of about 2500 km2has been confirmed in the east of the basin. It is believed that potential domains such as Sokor 1, Donga and Upper Cretaceous lithologic traps in the southeast of the basin are key expected targets

关键词： Niger Termit basin superimposed marine-continental rift Upper Cretaceous Donga Formation Paleogene Sokor 1 Formation tectonic evolution source-sink hydrocarbon accumulation exploration direction

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应用高分辨率质谱分析苏丹高酸值原油成因

岩石学报 2010年第4期26卷 1303-1312页

作者：程顶胜窦立荣万仑坤史权中国石油勘探开发研究院北京100083 中国石油天然气勘探开发公司北京100034 中国石油大学(北京)重质油国家重点实验室北京102200

苏丹Muglad和Melut盆地是苏丹乃至整个中、西非剪切带最富含油气的盆地,所发现的原油主要为中质油(重度为20°～34°API),其次为重质油(重度小于20°API),普遍高含沥青质、高含蜡、高酸值、低含硫。为了探讨高酸值原油的成因,选择了苏... 详细信息

苏丹Muglad和Melut盆地是苏丹乃至整个中、西非剪切带最富含油气的盆地,所发现的原油主要为中质油(重度为20°～34°API),其次为重质油(重度小于20°API),普遍高含沥青质、高含蜡、高酸值、低含硫。为了探讨高酸值原油的成因,选择了苏丹地区18个不同酸值的原油样品,尝试高分辨率质谱分析上述原油有机酸的组成。结果表明,高酸值原油的有机酸主要由环烷酸组成;环烷酸的平均相对分子质量随降解作用程度增加而增大,分子碳原子数分布范围变宽;环烷酸以一环、二环、三环环烷酸为主。生物降解作用是形成高酸值原油的主要原因。

关键词：苏丹 Muglad和Melut盆地高酸值原油高分辨率质谱生物降解作用

MAJOR PETROLIFEROUS BASINS QINGHAI TIBET PLATEAU - SOURCE, RESERVOIR, SEAL,PRESERVATION AND POTENTIAL

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Scientia Geologica Sinica 2000年第1期 103-110页

作者： cheng dingsheng, Lei Zhenyu, Li Yongtie, Guo Zujun and Yang Xiaoping (Research institute of petroleum Exploration and development, Beijing 100083)

Source, reservoir, seal, preservation and potential of major petroliferous basins, Qinghai-Tibet plateau are analyzed in this paper. We conclude that (l) the hydrocarbon prospect of Qiangtang Basin is the best; (2) Cuoqin Basin has a relatively good hydrocarbon prospect; (3) Biru Basin, Qamdo Basin, Gamba-Dingri Basin have little hydrocarbon prospect, and (4) Kekexili Basin has little hydrocarbon prospect.

关键词： rock MAJOR PETROLIFEROUS BASINS QINGHAI TIBET PLATEAU RESERVOIR SEAL,PRESERVATION AND POTENTIAL SOURCE