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Discovery of “Enveloping Surface of Oil and Gas Overpressure Migration” in the Songliao Basin and its bearings on hydrocarbon migration and accumulation mechanisms

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Science China Earth Sciences 2012年第12期55卷 2005-2017页

作者： feng ZhiQiang ZHANG Shun feng zihui Daqing Oil Field Corporation Ltd.of China Petroleum Daqing 163712China

The Fuyang oil layer of the Songliao Basin is a tight and low-permeability sandstone pay zone formed in the fluvial-shallow water delta *** the formation are mainly lithologic reservoir and tight *** lacustrine-mudstone of K2qn1 is a good source rock and also acts as a good regional cap *** Fuyang oil layer is a typical upper-source and lower-reservoir pattern distributed in a large *** on a large number of exploration and development data, a macroscopic enveloping surface is found developed in the Fuyang oil layer, which is below *** effective reservoirs within the enveloping surface are commonly saturated with oil, and below the enveloping surface are mainly water *** distance from the enveloping surface to the bottom of the source rock is usually 100-350 m and at most 550 *** the research of the distribution patterns and the physical properties of the sandbodies above or beneath the source rock, it is concluded that: 1) the enveloping surface is the boundary of the overpressure hydrocarbon migration; 2) the spacial distribution of the pressure release beds controls the direction and the distance of the overpressure hydrocarbon migration; 3) tight oil reservoirs and lenticular oil reservoirs are mainly formed inside the envelope surface, whereas, conventional reservoirs are formed outside the envelope surface as a result of the buoyancy hydrocarbon *** discovery of the "overpressure hydrocarbon migration enveloping surface" and the concepts of overpressure hydrocarbon migration and buoyancy hydrocarbon migration not only challenge the old notion that "hydrocarbon migrates along the faults and is distributed along fault belts" in the Fuyang oil layer of the Songliao Basin, give a new explanation to the long-distance-oil-downwards migration (hundreds of meters) and expand the exploration potential of the Fuyang oil layer, and provide a rational guidance to the exploration of syncline plays, but also bette

关键词： enveloping surface overpressure migration buoyancy migration pressure release bed tight oil and gas Songliao Basin

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高黏土陆相页岩实验技术及其应用

大庆石油地质与开发 2024年第3期43卷 75-87页

作者：冯子辉张居和邵红梅霍秋立金玮贾忠伟苏勇多资源协同陆相页岩油绿色开采全国重点实验室黑龙江大庆163712 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 黑龙江省陆相页岩油重点实验室黑龙江大庆163712

页岩储层“四性”实验评价是页岩油勘探开发的重要基础及核心。现有实验技术存在页岩含油量检测不准、微纳米孔隙测量视域小及代表性差、流动性直接测量参数缺乏等难题,不适应古龙页岩油生产需求。通过研发实验装备、确定实验条件,建立... 详细信息

页岩储层“四性”实验评价是页岩油勘探开发的重要基础及核心。现有实验技术存在页岩含油量检测不准、微纳米孔隙测量视域小及代表性差、流动性直接测量参数缺乏等难题,不适应古龙页岩油生产需求。通过研发实验装备、确定实验条件,建立基于保压密闭岩心“四性”实验技术及流程。结果表明:古龙高成熟和成熟页岩含油量测定较国标法可减少损失71%和50%,应用新建不同成熟度页岩含油量恢复模型,恢复了国标法现场录井页岩含油量数据;高成熟与低成熟阶段页岩中干酪根有机质、不同赋存状态油和水定量特征差别明显,受干酪根有机质向页岩油转化及演化程度的控制;页岩孔缝组合构成规模储集空间及流动网络通道,储集空间分为2大类7亚类12种类型,总孔隙度高于粉砂质岩、灰质岩、云质岩;确定页岩油上部、中部、下部油层组含油性与流动性特征,圆柱状页岩样品驱替油率为16%~43%,同一地层温度(100℃)不同驱替压力(10~50 MPa)下的超临界CO_(2)驱替使孔隙度增加4.51百分点、渗透率增加0.53×10^(-3)μm^(2)。研究成果为页岩油规模增储和效益上产提供了实验依据。

关键词：高黏土陆相页岩 “四性”实验技术古龙页岩油保压密闭岩心含油量孔缝组合驱替油率

维普期刊数据库博看期刊

Transient fluid flow in the Binbei district of the Songliao Basin, China Evidence from apatite fission track thermochronology

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Petroleum Science 2013年第3期10卷 314-326页

作者： Xiang Caifu Martin Daniík feng zihui State Key Laboratory for Petroleum Resource and Prospecting China University of Petroleum College of Geosciences China University of Petroleum Department of Earth & Oceanic Sciences University of Waikato Prospecting and Exploration Institute of Daqing Oil Field

The Songliao Basin is famous for the Daqing Oilfield, the biggest in China. However, no economic hydrocarbon reservoir has been found in the northeastern Binbei district. Its thermal history, which is of great importance for hydrocarbon generation and migration, is studied with apatite fission track （AFT） thermochronology. Samples with depositional ages of the late Cretaceous （-108-73 Ma） are analyzed. The AFT ages of the samples from reservoir rock （depositional age 〉 76.1 Ma） fall between the late Cretaceous （724-5 Ma） and the early Eocene （414-3 Ma） period, indicating their total annealing after deposition. In contrast, two samples from the main seals of the Qingshankou （depositional age 〉 89.3 Ma） and the Nenjiang Formation （depositional age 〉 73.0 Ma） are not annealed or partially annealed （AFT ages of 974-9 Ma and 704-4 Ma, respectively）. Because the maximum burial temperature （〈90 ℃） evidenced by low vitrinite reflectance （Ro〈0.7） is not high enough to account for the AFT total annealing （110-120 ℃）, the transient thermal effect arising from the syntectonic fluid flow between the late Cretaceous and the early Eocene is proposed. Transient thermal effects from fluid flow explains the indicated temperature discrepancies between the AFT thermometer and the Ro thermometer because the transient thermal effect from the fluid flow with a temperature high enough （110-120 ℃） to anneal the AFT thermometer does not last long enough （104-105 yrs.） for an enhancement of the Ro （minimum 106- 107 yrs. under the same temperature）. This indicates that dating thermal effect from fluid flow might be a new means to reconstruct the tectonic history. It also answers why the samples from the main seals are not annealed because the seals will prohibit fluid flow and supply good thermal insulation. The large-scale fluid flow in the Binbei district calls for a new idea to direct the hydrocarbon exploration.

关键词： Apatite fission track vitrinite reflectance transient fluid flow Binbei district Songliao Basin

页岩中纳米级有机黏土复合孔缝的发现及其科学意义——以松辽盆地白垩系青山口组页岩为例

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石油勘探与开发 2024年第4期51卷 708-719,758页

作者：孙龙德王凤兰白雪峰冯子辉邵红梅曾花森高波王永超多资源协调陆相页岩油绿色开采全国重点实验室黑龙江大庆163712 中国石油天然气集团有限公司北京100007 大庆油田有限责任公司黑龙江大庆163453 大庆油田有限责任公司勘探开发研究院黑龙江大庆163712

以松辽盆地白垩系青山口组页岩TOC、R_o和X射线扫描等分析为基础,利用氩离子抛光-场发射扫描电镜分析,结合能谱、聚焦离子束三维重构等技术,首次发现一种新的孔隙类型——纳米级有机黏土复合孔缝。孔隙特征及演化研究结果表明:(1)有机... 详细信息

以松辽盆地白垩系青山口组页岩TOC、R_o和X射线扫描等分析为基础,利用氩离子抛光-场发射扫描电镜分析,结合能谱、聚焦离子束三维重构等技术,首次发现一种新的孔隙类型——纳米级有机黏土复合孔缝。孔隙特征及演化研究结果表明:(1)有机黏土复合孔缝多呈海绵状、缝网状集合体存在于页岩基质中,单个孔隙呈方形、长方形、菱形、板状,直径一般小于200 nm,不同于国内外页岩中已发现的呈圆形或椭圆形的有机质孔;(2)随页岩成熟度增加,有机黏土复合物的C、Si、Al、O、Mg、Fe等元素发生规律性变化,反映有机质生烃体积收缩、黏土矿物转化共同影响纳米级有机黏土复合孔缝的形成;(3)青山口组页岩高成熟阶段,纳米级有机黏土复合孔缝是主要储集空间,最高占总孔隙的70%以上,三维空间内孔隙连通性明显优于有机质孔,反映高演化阶段这类孔隙是泥纹型页岩的主力孔缝类型,也是陆相页岩油核心区主要油气储集空间。纳米级有机黏土复合孔缝的发现,改变了陆相页岩无机质孔隙是油气主要储集空间的传统认识,对于泥纹型页岩油的形成机理、富集规律研究具有重要的科学意义。

关键词：松辽盆地白垩系青山口组泥纹型页岩油纳米级有机黏土复合孔缝有机黏土复合物成岩演化

Formation mechanism of in-situ volcanic reservoirs in eastern China:A case study from Xushen gasfield in Songliao Basin

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Science China Earth Sciences 2014年第10期57卷 2998-3014页

作者： feng zihui YIN ChangHai LIU JiaJun ZHU YingKang LU JiaMin LI JiangHai Exploration and Development Research Institute Daqing Oilfield Company Ltd. School of Earth and Space Science Peking University

A large number of in-situ volcanic reservoirs have been discovered from the Meso-Cenozoic rift basin group in eastern *** on drilling results in combination with geological and geophysical analysis,a case study from the Early Cretaceous Xujiaweizi fault-depression shows that the formation mechanism of in-situ volcanic reservoirs is characterized by"fault-controlled body,body-controlled facies,facies-controlled reservoir,and reservoir-controlled accumulation".In other words,deep faults control the volcanic eruption type,volcanic body,and gas reservoir distribution;the volcanic body determines the spatial distribution of volcanic facies and volcanic gas reservoir size;the volcanic facies control reservoir physical properties and effective thickness of gas formation;the volcanic reservoir properties control gas reservoir type and gas *** result is useful to guiding the discovery of in-situ volcanic gas reservoirs in faulted basins in both theory and practice.

关键词： Songliao Basin in-situ volcanic reservoir volcanic eruption type volcanic facies belt volcanic eruption cycle

Crude-oil hydrocarbon composition characteristics and oil viscosity prediction in the northern Songliao Basin

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Science China Earth Sciences 2014年第6期57卷 297-312页

作者： ZHANG JuHe feng zihui FANG Wei HUO QiuLi ZHANG Kun LI JingKun ZENG HuaSen ZHANG BoWei Exploration and Development Research Institute Daqing Oilfield Company Ltd. School of Resources and Environment Southwest Petroleum University

Crude oil hydrocarbon composition characteristics and oil viscosity prediction are important bases in petroleum exploration. A total of 54 oil/heavy-oil samples and 17 oil sands were analyzed and quantified using both comprehensive 2D gas chromatog raphy （GCxGC） and comprehensive 2D gas chromatography/time-of-flight mass spectrometry （GCxGC/TOFMS）. The results show that crude oil in the West slope is mainly heavy oil and its hydrocarbon composition is characterized overall by paraf fins 〉 mono-aromatics 〉 naphthenes 〉 non-hydrocarbons 〉 di-aromatics 〉 tri-aromatics 〉 tetra-aromatics. Aromatics are most abundant and non-hydrocarbons are least abundant, whilst content differences among paraffins, naphthenes, aromatics, and non-hydrocarbons are less than 15%. There are two types of heavy oil, secondary type and mixing type. Biodegradation is the main formation mechanism of heavy oil. Biodegradation levels cover light biodegradation, moderate biodegradation, and se- vere biodegradation. With increasing biodegradation, paraffin content decreases while contents of aromatics and non- hydrocarbons increase. In contrast, naphthene content increases first and then decreases with increasing biodegradation. In se- vere biodegradation stage, naphthenes decrease more quickly than aromatics and non-hydrocarbons. This provides a new method for studying oil/heavy-oil biodegradation mechanism and biodegradation resistance of different hydrocarbons at dif- ferent biodegradation stages. In the Longhupao-Daan terrace and Qijia-Gulong depression, most crude oil is conventional oil. Its composition is dominated by paraffins with the lowest content of aromatics. In some casual oil wells from the Long- hupao-Daan terrace, crude oil from Saertu oil reservoirs is moderately biodegraded whereas crude oil from Putaohua oil reser voir is lightly biodegraded. Chemical parameters using saturate hydrocarbons and aromatics are usually not suitable for deter mining organic type and thermal maturity o

关键词： Songliao Basin crude-oil and heavy oil hydrocarbon composition comprehensive two-dimensional gas chromatog-raphy

Microfossils and molecular records in oil shales of the Songliao Basin and implications for paleo-depositional environment

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Science China Earth Sciences 2009年第10期52卷 1559-1571页

作者： feng zihui FANG Wei WANG Xue HUANG ChunYan HUO QiuLi ZHANG JuHe HUANG QingHua ZHANG Lei School of Earth and Space Sciences Peking UniversityBeijing 1000871China Exploration and Development Research Institute PetroChina Daqing Oilfield Company Ltd.Daqing 163712China

Several oil shale beds, over 10 m thick, occur at the base of the first member of the Upper Cretaceous Qingshankou Formation (K2qn1) in the Songliao Basin. They act both as excellent source rocks for conventional oil and as potential oil deposit for shale oil production. Here we combine micropaleon-tology with organic geochemistry to investigate the paleo-depositional environment and organic source characteristics of the oil shales and black shales. Our results indicate that algal remains are dominant microfossils in K2qn1 oil shales, and their relatively high abundance suggests a major algal thriving event during the oil shale deposition. The presence of fresh water and brackish water species, Sentusidinium, Vesperopsis and Nyktericysta, and marine or brackish water deltaic and lagoonal species such as Kiokansium and Dinogymniopsis demonstrate that this paleo-continental lake was influenced by marine transgressions at the time of K2qn1 oil shale formation. The extremely low pristine/phytane ratios, relatively high abundance of gammacerane and 4-methyl steranes, and low δ 13C values of C14-C37 n-alkanes in the oil shale organic extracts indicate the deposition of oil shales in anoxic and highly stratified water columns and the significant contribution of lacustrine algae to sedimentary organic matter. High molecular-weight paraffinic hydrocarbons with unusually high abundance of nC43, nC45, and nC47 may be related to special algal species associated with marine transgression events. The giant water body of Songliao paleo-lake and the change in the organic and chemical environment (such as nutrition source and water column salinity) associated with seawater transgression into the lake are among the most important reasons for oil shales in the Songliao Basin being different from mudstone and oil shale in other rifted basins.

关键词： Songliao Basin oil shale micro-fossil molecular fossil alga thrive event

CO_2 gas emplacement age in the Songliao Basin: Insight from volcanic quartz ^(40)Ar-^(39)Ar stepwise crushing

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Chinese Science Bulletin 2010年第17期55卷 1795-1799页

作者： YUN JianBing WU HeYong feng zihui MEI LianFu QIU HuaNing lKey Laboratory of Isotope Geochronology and Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Research Institute of Exploration and Development Daqing Oilfield Company Ltd Daqing 163712 China Graduate University of Chinese Academv of Sciences Beijing 100049 China Key Laboratory of Tectonics and Petroleum Resources (China University of Geosciences Wuhan) Ministry of Education Wuhan 430074 China

Due to a lack of suitable minerals, the gas/oil emplacement ages have never been accurately obtained before. CH4-CO2-saline- bearing secondary inclusions are found in quartz from the volcanic rocks of the Yingcheng Formation, the container rocks of the deep CO2 gas reservoir in the Songliao Basin. The inclusion fluid was trapped into microcracks in quartz during the gas em- placement and accumulation, providing an optimal target for the 40Ar-39Ar stepwise crushing technique to determine the CO2 gas emplacement age. 40Ar-39Ar dating results of a quartz sample by stepwise crushing yield a highly linear-regression isochron with an age of 78.4±1.3 Ma, indicating that the accumulation of the deep CO2 gas reservoir in the Songliao Basin occurred in the late Cretaceous. This is the first time to report an exact isotopic age for a CO2 gas reservoir, which indicates that the 40Ar-39Ar dating can serve as a new technique to date the oil/gas emplacement ages.

关键词：二氧化碳气体侵位年龄松辽盆地粉碎技术火山岩石英二氧化碳气藏同位素年龄

The age of vanadium-based nanozymes: Synthesis, catalytic mechanisms, regulation and biomedical applications

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Chinese Chemical Letters 2024年第4期35卷 52-60页

作者： Shuaiwen Li zihui Chen feng Yang Wanqing Yue Department of Chemistry Key Laboratory of Biomedical Functional MaterialsSchool of ScienceChina Pharmaceutical UniversityNanjing 211198China Key Laboratory of Drug Quality Control and Pharmacovigilance(China Pharmaceutical University) Ministry of EducationNanjing 211198China

Nanomaterials with enzyme-mimic(nanozyme) activity have garnered considerable attention as a potential alternative to natural enzymes, thanks to their low preparation cost, high activity, ease of preservation, and unique physicochemical properties. Vanadium(V) is a transition metal that integrates the benefits of valence-richness, low cost, and non-toxicity, making it a desirable candidate for developing a range of emerging nanozymes. In this review, we provide the first systematic summary of recent research progress on V-based nanozymes. First, we summarize the preparation of V-based nanozymes using both top-down and bottom-up synthesis methods. Next, we review the mechanism of V-based nanozymes that mimic the activity of various enzymes. We then discuss methods for regulating V-based nanozyme activity, including morphology, size, valence engineering, defect engineering, external triggering, and surface engineering. Afterward, we outline various biomedical applications, including therapeutic, anti-inflammatory, antibacterial, and biosensing. Finally, we prospect the challenges and countermeasures for V-based nanozymes based on their development. By summarizing recent research progress on V-based nanozymes, we hope to provide useful insights for researchers to further explore their potential applications and overcome their existing challenges.

关键词： Vanadium Nanozymes Catalytic mechanisms Biomedical applications Regulation