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Depositional Environment of Es_4~u and Es_3~l Shales Based on Biomarkers from the Boxing Sag of Dongying Depression, East China

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Acta Geologica Sinica(English Edition) 2014年第5期88卷 1556-1564页

作者： WANG Ying LIU Luofu meng jianghui JIANG Zhenxue GAO Yongjin LIU Shuhui State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Basin and Reservoir Research Center China University of Petroleum Research Institute of Geological Science Shengli Oilfield Company Limited

The Boxing Sag is located in the southwest of Dongying Depression, southern Bohai Bay Basin of East China. It is one of the main petroliferous sags in the Dongying Depression, and has two major source rocks, namely the upper 4th Member （Es4u） and lower 3rd Member （Es31） shales of Eocene Shahejie Formation, which are the new exploration targets in recent years. In this study, 16 core samples were collected from Es4u and Es31 shales in the Boxing Sag, and the saturate hydrocarbons were analyzed by gas chromatography （GC） and gas chromatography-mass spectrometry （GC-MS）, respectively. The results show that Es4u shale has obvious phytane and gammacerane predominance, higher concentration of tricyclic terpanes and regular steranes, and very low concentration of 4- methly steranes; Es31 shale has pristane predominance, lower concentration of tricyclic terpanes, gammacerane and regular steranes, and higher concentration of 4-methly steranes. The Es4u shale can be further divided into two types based on the distribution of n-alkanes in gas chromatograms： normal distribution and double peak pattern. The biomarker characteristics and sedimentary facies distribution show that Es4u shale was deposited in the saline-hypersaline semi-deep （Type A Es4u shale, sag center） to shallow （Type B Es4u shale, sag edge） lacustrine environments, Es31 shale was deposited in the freshwater-brackish semi-deep-deep lacustrine environments, and the former sedimentary facies maps of Es4u and Es31 in the Boxing Sag are further modified.

关键词： biomarker lacustrine environment shale Shahejie Formation Boxing Sag Dongying Depression

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Geochemical Evidence for Coal and Carbonaceous Mudstone as the Possible Major Oil Source Rock in the Jurassic Turpan Basin, Northwest China

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Acta Geologica Sinica(English Edition) 2012年第5期86卷 1171-1181页

作者： meng jianghui ZHANG Min ZHAO Hongjing LIU Luofu WANG Zhiyong ZHOU Jieli WANG Ying College of Geoscience Yangtze UniversityJingzhou 434023China State Key Laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing 102249China Research Institute of Petroleum Exploration and Development Tuha Oilfield CompanyPetroChinaHami 839009China

Petroleum geologists have debated whether the hydrocarbons from Jurassic coal measures are derived from the coals, carbonaceous mudstones or coal-measure mudstones in the Turpan Basin. Based on the geochemistry analysis of the 20 crude oils and 40 source rocks from the Turpan Basin, some data have been obtained as follows： carbon preference index and methylphenanthrene index of the Jurassic oils are 1.16-1.45 and 0.28-0.80, and the ααα C29 sterane 20S/（20S＋20R） and C29 sterane ββ/（ββ＋αα） are 0.44-0.51 and 0.4-0.54 respectively, which show the normal maturity of oils; the vitrinite reflectance of the source rocks from the Xishanyao to Badaowan Formations range from 0.47% to 0.97%, which indicate immature to mature thermal evolutionary stage and sufficient conditions for generating mass mature oil. The effect of hydrocarbon expulsion should be considered when studying the source of coal-derived oil by using Biomarkers. Biomarkers in the Jurassic oils from the basin are similar to those in the coals and carbonaceous mudstones, with a strong predominant content of pristane, relatively high ratio of C15 /C16 sesquiterpenoids （1）, a relatively high content of low carbon number tricyclic terpanes and C 24 tetracyclic terpane, little gammacerane and C 29 Ts detected, an absolute predominant content of C29 sterane and a relatively high content of diasterane. However, the opposite characteristics are shown in mudstones, with an approximately equal content of pristane and phytane, relatively low ratio of C15 /C16 sesquiterpenoids （1）, a relatively high content of high carbon number tricyclic terpanes and a low content of C 24 tetracyclic terpane, peaks of gammacerane and C29 Ts detected obviously and an increasing C27 sterane content. All of these characteristics identify the coals and carbonaceous mudstones as the possible major oil source rocks in this area, and they were formed in the stronger oxidizing environment with shallower water than mudstones.

关键词： biomarker coal-derived oil oil-source correlation coal carbonaceous mudstone mudstone Jurassic Turpan Basin

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Geochemistry of source rocks in the Es_3 and Es_4 members in the Shahejie Formation of the Western Depression, Liaohe Oilfield, China

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Chinese Journal Of Geochemistry 2011年第4期30卷 405-414页

作者： WANG Weili LIU Luofu JIANG Zhenxue ZHONG Ningning WANG Ying WANG Ping WU Lin meng jianghui ZHOU Jieli GUO Yongqiang State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Changping Beijing 102249 China Basin and Reservoir Research Centre China University of Petroleum Changping Beifing 102249 China Petroleum Exploration and Production Research Institute of SINOPEC Beijing 100083 China

The Western Depression of the Liaohe Basin is the major exploration area of the Liaohe Oilfield, and its main source rocks consist of the third and fourth members of the Shahejie Formation (Es3 and Es4). These source rocks are widely distributed in the depression, with semi-deep lake and fan delta as the main sedimentary facies, brown oil shale and black gray-dark gray mudstone as the main rocks, and a total thickness of 270-1450 m. The kerogens are mainly of the types I and IIA, and partly of the type IIB and least of the type III. The Ro values range from 0.4%-0.8%, indicating an evolution stage from immature to mature. The maturity of Es4 source rocks is rela-tively high, reaching the early mature stage, but their distribution and thickness are lower than those of Es3. Besides, according to biomarker analysis, it is thought that the source rocks of Es3 and Es4 are characterized by mixed input, and most of the source rocks were formed in the brackish water-saline and strongly oxygen-free environment. Fur-thermore, the Qingshui, Niuxintuo and Chenjia sags are believed to possess greater potential for hydrocarbon gen-eration and expulsion, for they are source rocks with a larger thickness, have higher organic carbon contents, belong to better organic matter types and possess higher maturities.

关键词：西部凹陷沙河街组辽河油田烃源岩沙三段地球化学有机质类型中国

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Characteristics of Oil Sources from the Chepaizi Swell,Junggar Basin,China

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Acta Geologica Sinica(English Edition) 2010年第5期84卷 1209-1219页

作者： LIU Luofu KUANG Jun WANG Ping CHEN Zhijun WANG Weibin ZHAO Yande WU Lin JIN Jun WANG Weili meng jianghui ZHOU Jieli LIU Guodong State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Basin and Reservoir Research Center China University of Petroleum （Beijing） Changping Beijing 102249 China PetroChina Xinjiang Oil Field Company Karamay 834000 China

So far there has been no common opinion on oil source of the Chepaizi swell in the Junggar Basin. Therefore, it is difficult to determine the pathway system and trend of hydrocarbon migration, and this resulted in difficulties in study of oil-gas accumulation patterns. In this paper, study of nitrogen compounds distribution in oils from Chepaizi was carried out in order to classify source rocks of oils stored in different reservoirs in the study area. Then, migration characteristics of oils from the same source were investigated by using nitrogen compounds parameters. The results of nitrogen compounds in a group of oil/oil sand samples from the same source indicate that the oils trapped in the Chepaizi swell experienced an obvious vertical migration. With increasing migration distance, amounts and indices of carbazoles have a regular changing pattern （in a fine linear relationship）. By using nitrogen compounds techniques, the analyzed oil/oil sand samples of Chepaizi can be classified into two groups. One is the samples stored in reservoir beds of the Cretaceous and Tertiary, and these oils came from mainly Jurassic source rock with a small amount of Cretaceous rock; the other is those stored in the Jurassic, Permian and Carboniferous beds, and they originated from the Permian source. In addition, a sample of oil from an upper Jurassic reservoir （Well Ka 6）, which was generated from Jurassic coal source rock, has a totally different nitrogen compound distribution from those of the above-mentioned two groups of samples, which were generated from mudstone sources. Because of influence from fractionation of oil migration, amounts and ratios of nitrogen compounds with different structures and polarities change regularly with increasing migrating distance, and as a result the samples with the same source follow a good linear relationship in content and ratio, while the oil samples of different sources have obviously different nitrogen compound distribution owing to diffe

关键词： nitrogen compound oil source source rock oil migration Chepaizi swell Junggar Basin

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桂中坳陷上古生界页岩气保存条件

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石油与天然气地质 2014年第4期35卷 534-541页

作者：潘仁芳唐小玲孟江辉张喜满龚宇长江大学地球科学学院湖北武汉430100 中国石油南方石油勘探开发有限公司广东广州510240

桂中坳陷上古生界中、下泥盆统以及下石炭统页岩具有良好的生烃及储集条件,但受多期构造运动改造,页岩气保存条件复杂。从宏观和微观分析入手,对该区上古生界页岩气保存条件进行综合评价,预测其勘探潜力及有利勘探区。在野外地质调查的... 详细信息

桂中坳陷上古生界中、下泥盆统以及下石炭统页岩具有良好的生烃及储集条件,但受多期构造运动改造,页岩气保存条件复杂。从宏观和微观分析入手,对该区上古生界页岩气保存条件进行综合评价,预测其勘探潜力及有利勘探区。在野外地质调查的基础上,结合钻井资料、镜质体反射率、粘土矿物X-射线衍射、泥页岩物性分析数据以及构造演化史和埋藏史-热史恢复,从盖层封闭性、断裂和抬升剥蚀作用影响等方面评价了桂中坳陷上古生界页岩气保存条件。结果表明：桂中坳陷中泥盆统泥页岩沉积厚度大（暗色泥页岩厚250-650 m）、分布连续且韧性和微观封闭性较好,可作为页岩气直接和区域盖层;下石炭统虽然分布局限,但韧性和封闭性好,可作为局部盖层;燕山期为研究区主要变形期,大量叠瓦状逆冲断裂和高角度逆冲断层在此时发育,对现今残存的页岩气藏分布格局起着决定性影响,坳陷中、西部遭受的构造改造相对较弱;强烈的剥蚀作用破坏了页岩气的保存,但坳陷中、西部地区剥蚀程度较小。总之,桂中坳陷中、西部的柳江低凸起内天山背斜及西部、马山断凸中部和红渡浅凹中部一带页岩盖层分布稳定且韧性和封闭性较好、遭受的构造破坏较弱、剥蚀厚度较小,为页岩气有利勘探区。

关键词：油气保存条件盖层封闭性构造作用页岩气桂中坳陷

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基于笔石表皮体反射率和拉曼光谱评价海相页岩热成熟度的方法--以川南下古生界五峰组-龙马溪组为例

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石油与天然气地质 2022年第6期43卷 1515-1528页

作者：孟江辉吕沛熙吴伟潘仁芳朱逸青长江大学非常规油气湖北省协同创新中心湖北武汉430100 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 中国石油西南油气田分公司页岩气研究院四川成都610051

五峰组(O_(3)w)-龙马溪组(S_(1)l)海相页岩是川南下古生界页岩气勘探的主力层系之一,热成熟度是烃源岩和页岩气评价的一项重要指标。由于缺乏镜质体,一直难以建立准确评价下古生界海相页岩热成熟度的方法。共采集33块川南五峰组-龙马溪... 详细信息

五峰组(O_(3)w)-龙马溪组(S_(1)l)海相页岩是川南下古生界页岩气勘探的主力层系之一,热成熟度是烃源岩和页岩气评价的一项重要指标。由于缺乏镜质体,一直难以建立准确评价下古生界海相页岩热成熟度的方法。共采集33块川南五峰组-龙马溪组岩心样品,用于观察源内固体沥青及笔石表皮体的光学特征,并测试其随机反射率。同时,利用样品中干酪根的拉曼光谱参数分析热成熟度的演化趋势。研究结果表明,相较于源内固体沥青,笔石表皮体来源单一、颗粒较大、特征明显,且垂直层理切面上非粒状笔石表皮体随机反射率(GRor)数值分布更集中,更适合作为反射率测试对象。干酪根的拉曼光谱参数特征表明,热演化过程中GRor与等效镜质体反射率(EqRo)并非单一的线性关系。利用干酪根的拉曼光谱参数为中间变量,建立了通过GRor计算EqRo的方法。计算结果表明,五峰组-龙马溪组页岩在长宁、泸州-大足和威远地区的热成熟度依次降低,EqRo分布范围分别为2.99%~3.91%,2.87%~3.54%和2.46%~3.03%,平均值分别为3.44%,3.22%和2.77%。长宁西部出现了异常高成熟度区域,需要评价其对页岩气勘探的影响。

关键词：固体沥青笔石表皮体拉曼光谱热成熟度海相页岩五峰组-龙马溪组下古生界四川盆地

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Treadmill exercise in combination with acousto-optic and olfactory stimulation improves cognitive function in APP/PS1 mice through the brain-derived neurotrophic factor-and Cygb-associated signaling pathways

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Neural Regeneration Research 2025年第9期20卷 2706-2726页

作者： Biao Xiao Chaoyang Chu Zhicheng Lin Tianyuan Fang Yuyu Zhou Chuxia Zhang jianghui Shan Shiyu Chen Liping Li Department of Physiology and Pharmacology Health Science CenterNingbo UniversityNingboZhejiang ProvinceChina Ningbo Key Laboratory of Behavioral Neuroscience Health Science CenterNingbo UniversityNingboZhejiang ProvinceChina Key Laboratory of Addiction Research of Zhejiang Province NingboZhejiang ProvinceChina

A reduction in adult neurogenesis is associated with behavioral abnormalities in patients with Alzheimer's ***,enhancing adult neurogenesis represents a promising therapeutic approach for mitigating disease symptoms and ***,nonpharmacological interventions aimed at inducing adult neurogenesis are currently *** individual non-pharmacological interventions,such as aerobic exercise,acousto-optic stimulation,and olfactory stimulation,have shown limited capacity to improve neurogenesis and cognitive function in patients with Alzheimer's disease,the therapeutic effect of a strategy that combines these interventions has not been fully *** this study,we observed an age-dependent decrease in adult neurogenesis and a concurrent increase in amyloid-beta accumulation in the hippocampus of amyloid precursor protein/presenilin 1 mice aged 2-8 *** deposition became evident at 4 months,while neurogenesis declined by 6 months,further deteriorating as the disease ***,following a 4-week multifactor stimulation protocol,which encompassed treadmill running(46 min/d,10 m/min,6 days per week),40 Hz acousto-optic stimulation(1 hour/day,6 days/week),and olfactory stimulation(1 hour/day,6 days/week),we found a significant increase in the number of newborn cells(5'-bromo-2'-deoxyuridine-positive cells),immature neurons(doublecortin-positive cells),newborn immature neurons(5'-bromo-2'-deoxyuridine-positive/doublecortin-positive cells),and newborn astrocytes(5'-bromo-2'-deoxyuridine-positive/glial fibrillary acidic protein-positive cells).Additionally,the amyloid-beta load in the hippocampus *** findings suggest that multifactor stimulation can enhance adult hippocampal neurogenesis and mitigate amyloid-beta neuropathology in amyloid precursor protein/presenilin 1 ***,cognitive abilities were improved,and depressive symptoms were alleviated in amyloid precursor protein/presenilin 1 mice

关键词： acousto-optic stimulation adult neurogenesis Alzheimer's disease amyloid precursor protein/presenilin 1 mice amyloid-beta deposition brain cell apoptosis cognitive impairment depression-like behavior involuntary treadmill exercise olfactory stimulation serum metabolites

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渝东南盆缘转换带常压页岩气储层非均质性特征及主控因素

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天然气工业 2018年第12期38卷 26-36页

作者：潘仁芳李笑天金吉能朱正平孟江辉长江大学非常规油气湖北省协同创新中心油气资源与勘探技术教育部重点实验室

四川盆地东南部及其盆缘转换带(以下简称渝东南盆缘转换带)页岩气资源量较大,但其地质条件复杂、地层呈常压特征,给页岩气的经济开发带来了困难。为了深入认识该区页岩气储层的非均质性,借助X射线衍射、氩离子抛光扫描电镜、低温氮气吸... 详细信息

四川盆地东南部及其盆缘转换带(以下简称渝东南盆缘转换带)页岩气资源量较大,但其地质条件复杂、地层呈常压特征,给页岩气的经济开发带来了困难。为了深入认识该区页岩气储层的非均质性,借助X射线衍射、氩离子抛光扫描电镜、低温氮气吸附等手段,从岩石骨架、储集空间的角度研究了该区上奥陶统五峰组—下志留统龙马溪组页岩气储层的非均质性及其主控因素。研究结果表明:(1)该转换带五峰组—龙马溪组页岩气储层非均质性主要表现在骨架非均质性和孔隙非均质性两个方面,优质页岩层段与上覆页岩段在脆性矿物含量、黏土矿物含量、有机质丰度、孔隙度等方面差异较大,具有较强的纵向非均质性;(2)储层发育有机质孔、脆性矿物孔、裂缝等多种储集空间类型,并且孔隙在形态、分布、孔径、结构特征方面的差异明显,具有较强的微观非均质性;(3)页岩岩石物理参数泊松比、杨氏模量也相应表现出较大的差异;(4)页岩气储层非均质性的主控因素是沉积环境差异导致的岩石骨架变化,构造缝及其多向性增强了储层的非均质性,成岩作用进一步改变了骨架矿物和有机质的含量,对孔隙类型及结构产生影响,进一步加剧了页岩储层的非均质性。结论认为,龙一下亚段应为该区下一步页岩气开发的首选目的层系,平面上以远离构造相对活动带和深大断裂为宜,区块上优选南川区块。

关键词：四川盆地东南盆缘转换带晚奥陶世-早志留世页岩气储集层非均质性骨架孔隙勘探区

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鄂西地区奥陶纪—志留纪之交海盆水体滞留程度与页岩有机质富集的关系

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石油学报 2023年第10期44卷 1599-1611页

作者：沈均均王玉满李辉计玉冰邱振王鹏万孟江辉长江大学非常规油气省部共建协同创新中心湖北武汉430100 中国石油勘探开发研究院北京100083 中海油田服务股份有限公司油田生产事业部天津300459 中国石油浙江油田公司勘探开发一体化中心浙江杭州310023 中国石油杭州地质研究院浙江杭州310023

奥陶纪—志留纪之交的水体滞留程度是否对有机质富集产生影响目前还存在一定的争议。在生物地层格架划分的基础上,分析了鄂西地区不同时期页岩沉积学及地球化学特征,探讨了水体滞留程度与有机质富集的关系。研究结果表明:鄂西地区奥陶... 详细信息

奥陶纪—志留纪之交的水体滞留程度是否对有机质富集产生影响目前还存在一定的争议。在生物地层格架划分的基础上,分析了鄂西地区不同时期页岩沉积学及地球化学特征,探讨了水体滞留程度与有机质富集的关系。研究结果表明:鄂西地区奥陶纪—志留纪之交由早至晚可划分出冰期前(WF2-WF3笔石带)、冰期(WF4笔石带—观音桥段)和冰期后(LM1—LM5笔石带)3个时期,均处于较深的水体环境中。水体滞留程度对有机质保存条件无明显影响,主要控制海洋生产力,进而影响有机质富集:冰期前WF2笔石带沉积期处于台-棚转换期,海平面相对较低,同时周缘古陆和局部水下古隆起剧烈隆升,水体滞留程度最强(强滞留),与外海营养物质交换能力最弱,导致古生产力水平最低,TOC含量最低(平均为2.9%)。进入WF3笔石带沉积期后,海平面持续上升进入高位,水体滞留程度明显减弱(中等滞留),古生产力水平升高,TOC含量随之升高(平均为3.6%);冰期海平面虽然处于最低位,但上升洋流异常活跃,水体滞留程度最弱,营养物质随上升洋流大量涌入扬子海盆,导致古生产力水平达到最高,TOC含量最高(平均为4.6%);冰期后,气候回暖,冈瓦纳冰川快速消融,构造活动稳定,海平面大幅上升进入高位,水体滞留程度中等,古生产力水平较高,TOC含量较高(平均为4.0%)。

关键词：中扬子黑色页岩五峰组—龙马溪组水体滞留程度有机质富集

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湘鄂西中生代弧形叠加扩展的变形记录

引用

地质学报 2022年第4期96卷 1197-1214页

作者：唐永胡望水朱美衡宋换新孟江辉唐文军王鹏万长江大学非常规油气湖北省协同创新中心湖北武汉430100 中石化江汉油田分公司物探研究院湖北武汉430000 中国石油新疆油田公司彩南作业区新疆阜康831511 中国石油杭州地质研究院浙江杭州310023

通过对湘鄂西构造带进行大量的构造形迹测量、解析,结合研究区内构造变形年龄数据的统计分析。明确燕山中期(J;—K_(2))早期弧形构造弧顶方向为330°,并向两侧发散状分布,以大别山、黔中、黄陵隆起为约束点,湘鄂西形成了由南东侧至北东... 详细信息

通过对湘鄂西构造带进行大量的构造形迹测量、解析,结合研究区内构造变形年龄数据的统计分析。明确燕山中期(J;—K_(2))早期弧形构造弧顶方向为330°,并向两侧发散状分布,以大别山、黔中、黄陵隆起为约束点,湘鄂西形成了由南东侧至北东侧构造迹线由NE→NEE→EW→NWW逐渐偏转的弧形构造,最大主应力方向偏转近114°。同时早期弧形构造扩展过程中,分别会在弧形构造两翼,形成近SN向(大耳山-茶园断层、乌江-大千断层)和NW向走滑断裂(仙女山断层);燕山晚期(K_(2)末期—K_(2))晚期弧形构造弧顶方向为296°,由于受到齐岳山断裂的影响,晚期弧形构造分成两幕,K_(2)末期(燕山晚期弧形一幕形成)、K_(2)(燕山晚期弧形二幕形成时期)。以大巴山、黔中、黄陵隆起为约束点,湘鄂西形成了由南东侧至北东侧构造迹线由SN向NE逐渐偏转的弧形构造,最大主应力方向偏转近86°。并逐渐向四川盆地扩展,至到华蓥山断裂。两期弧形构造影响强度范围有一定的差异,研究区北东侧以燕山中期弧形构造主控,西南侧以燕山晚期弧形构造主控,造就湘鄂西北东侧与西南侧油气藏赋存的差异。

关键词：湘鄂西弧形构造叠加构造应力场燕山期

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维普期刊数据库

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