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塔里木盆地肖尔布拉克组上段烃源岩分布预测及油气勘探意义

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地学前缘 2024年第2期31卷 343-358页

作者：徐兆辉胡素云曾洪流马德波罗平胡再元石书缘陈秀艳陶小晚中国石油勘探开发研究院北京100083 美国得克萨斯大学奥斯汀分校经济地质局美国奥斯汀787133 中国石油勘探开发研究院西北分院甘肃兰州730020

通常认为塔里木盆地下古生界海相烃源岩以下寒武统玉尔吐斯组泥质岩为主、中下奥陶统泥质岩为辅,下寒武统肖尔布拉克组上段(肖上段)以白云岩储层为主。塔中和塔北地区均钻遇了肖上段泥灰岩,最近钻探的京能柯探1和轮探3井肖上段泥灰岩样... 详细信息

通常认为塔里木盆地下古生界海相烃源岩以下寒武统玉尔吐斯组泥质岩为主、中下奥陶统泥质岩为辅,下寒武统肖尔布拉克组上段(肖上段)以白云岩储层为主。塔中和塔北地区均钻遇了肖上段泥灰岩,最近钻探的京能柯探1和轮探3井肖上段泥灰岩样品TOC含量多数>0.3%,少量>2%。盆地内不同地区五口井肖上段发育泥灰(云)岩烃源岩,与苏盖特布拉克露头肖上段暗色泥灰岩地化指标(TOC含量是0.41%、R o是1.14%)一致,表明肖上段泥灰岩具备生烃能力。本文基于露头、地震和钻测井资料,利用地震沉积学理论技术、属性与正演相结合,建立了肖上段台内多期叠置“礁滩源”沉积模式。发现烃源岩分布在礁前至坡脚变缓处,连片分布广、叠合厚度大,是规模有效烃源岩,可为邻近储层供烃。经测算,古城三维区肖上段泥灰岩烃源岩总生烃量超亿吨。研究认识拓展了塔里木盆地下古生界海相烃源岩类型、层系和分布范围,提升了寒武系盐下油气资源潜力,坚定了勘探重点从台缘带向台内战略转移的信心,为塔里木盆地古城地区乃至全盆地油气勘探带来新启示。

关键词：塔里木盆地肖尔布拉克组上段泥灰岩烃源岩地震沉积学油气勘探意义

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氦气资源形成地质条件、成因机理与富集规律

石油勘探与开发 2024年第2期51卷 436-452页

作者：陶士振杨怡青陈悦刘祥柏杨威李剑吴义平陶小晚高建荣陈燕燕王晓波吴晓智陈秀艳李谦贾进华中国石油勘探开发研究院北京100083

借鉴含油气系统思路及方法,基于典型富氦气田解剖,并利用地球化学成藏方法技术,研究天然气中氦气资源形成的地质条件、成因机理与富集规律。结果表明:①氦气“生-运-聚”机理与天然气有显著差异性,氦气主要为基底富U、Th元素缓慢α衰变... 详细信息

借鉴含油气系统思路及方法,基于典型富氦气田解剖,并利用地球化学成藏方法技术,研究天然气中氦气资源形成的地质条件、成因机理与富集规律。结果表明:①氦气“生-运-聚”机理与天然气有显著差异性,氦气主要为基底富U、Th元素缓慢α衰变或深部壳幔氦释放,沿岩石圈复合输导体系运移至天然气成藏系统,依附适宜载体气聚集成藏。②氦运移输导主要受“岩石圈断裂、基底断裂、沉积层断裂、有效输导层”复合输导体系控制,基于地下流体中“氦-气-水”相平衡及相-势耦合综合分析,提出氦气运聚过程中具有“水溶相、气溶相、游离相”3种主要赋存状态,存在氦气“集流、渗流、扩散”3种运移方式。③富氦气藏形成和氦气富集通常受控于“优质氦源、高效输导、适宜载体”3大主控要素,具有“脱溶汇聚、浮力驱动、压差驱替”3种聚集成藏动力类型,已发现富氦气藏具有相对“近氦源、邻断裂、低势区、高部位”的分布规律和成藏模式。④氦气富集区勘探和评价需要依托天然气兼探/并探,在评价落实氦气“源-运-聚”要素与天然气“生-储-盖”条件耦合匹配性、局部相对低势高部位有利圈闭载体气区的基础上,综合评价优选“通源连圈、低势高位、气氦适配”的有利氦气富集区。

关键词：氦气富氦气田地质特征形成条件成因机理富集规律

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氦气地质理论认识、资源勘查评价与全产业链一体化评价关键技术

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地学前缘 2024年第1期31卷 351-367页

作者：陶士振吴义平陶小晚王晓波王青陈胜高建荣吴晓智刘申奥艺宋连腾陈荣李谦杨怡青陈悦陈秀艳陈燕燕齐雯中国石油勘探开发研究院北京100083 中国石油勘探开发研究院西北分院甘肃兰州730020

鉴于我国氦气产业链理论技术需求,针对国内外尚无系统的氦气地质理论认识,缺乏针对性的氦气资源评价方法、参数取值标准,缺乏氦气含量综合准确检测、有利富集区优选方法,无成本指标优化体系及全产业链一体化评价方法等卡点和难点,本文... 详细信息

鉴于我国氦气产业链理论技术需求,针对国内外尚无系统的氦气地质理论认识,缺乏针对性的氦气资源评价方法、参数取值标准,缺乏氦气含量综合准确检测、有利富集区优选方法,无成本指标优化体系及全产业链一体化评价方法等卡点和难点,本文运用地质、地球化学、重磁电震、投资经济等多学科方法及实验技术,集中力量攻克氦气成藏机理、资源评价及资产评价的关键技术瓶颈。研发形成1项地质理论认识和3项关键技术:基于典型富氦气藏解剖、地下流体中“氦-气-水”相平衡及相-势耦合分析,研究提出氦气“水溶相、气容相、游离相”3种主要赋存状态、“集流、渗流、扩散”3种运移机理、“近氦源、邻断裂、低压区、高部位”4项分布富集控制因素,初步建立了基于“优质氦源、高效输导、适宜载体”的氦气“生-运-聚”地质理论认识。针对国内氦气含量检测技术参差不齐、部分准确度差、与国外数据差别大、无针对性的氦气资源评价方法等系列难题,以氦气源及氦气含量为核心,研发氦气含量综合准确检测技术,构建4类10种氦气资源评价方法,解决了氦气资源分级分类评价的技术瓶颈。针对基底氦源分布、岩性识别、通源断裂刻画及含氦储层评价难题,创建了归一化重磁下延方案,研发了基于深度学习的多尺度断裂智能识别技术和不同氦气含量下的气藏声学性质模拟方法,为氦源岩分布预测、通源断裂刻画、含氦储层测井解释评价及预测奠定了基础。通过建立多元控氦的富氦区带与目标优选技术,解决了富氦区带与目标优选难题。针对国内贫氦实际情况,以提氦装置投资和操作成本最小化为目标,采用响应面法建立优化目标与各主要工艺参数的非线性回归模型,建立了氦气全产业链一体化评价技术,初步解决了天然气低成本提氦工艺流程优化的技术需求。研究成果为我国长期、安全、规模利用氦气资源资产提供了有效支撑。

关键词：氦气氦源岩氦气成藏机理资源评价区带目标优选响应面法深度学习回归模型

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Bioinspired metal-organic framework nanozyme reinforced with thermosensitive hydrogel for regulating inflammatory responses in Parkinson’s disease

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Nano Research 2024年第2期17卷 858-865页

作者： xiaowan Fan tao Zhang Xin Ding Yushuo Gu Qing Li Wei Jiang Kelong Fan Nanozyme Medical Center Academy of Medical ScienceZhengzhou UniversityZhengzhou 450001China Department Central-China Branch of National Center for Cardiovascular DiseasesHean Cardiovascular Disease CenterFuwai Central-China HospitalCentral China Fuwai Hospital of Zhengzhou UniversityZhengzhou 450046China Application Center for Precision Medicine the Second Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China CAS Engineering Laboratory for Nanozyme Key Laboratory of Protein and Peptide PharmaceuticalsInstitute of BiophysicsChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 101408China Department of General Surgery Strategic Support Force Medical CenterBeijing 100101China Department of Anesthesiology Pain and Perioperative MedicineThe First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China

Parkinson’s disease(PD)is a prevalent neurodegenerative disorder accompanied by movement disorders and neuroinflammatory ***-inflammatory intervention to regulate oxidative stress in the brain is beneficial for managing ***,traditional natural antioxidants have failed to meet the clinical treatment demands due to insufficient activity and ***,Cu-doping zeolite imidazolate framework-8(ZIF-8)nanozyme is designed to simulate Cu/Zn superoxide dismutase(SOD)by biomimetic *** nanozyme composite is then integrated into thermosensitive hydrogel(poly(lactic-co-glycolic acid)-poly(ethylene glycol)-poly(lactic-co-glycolic acid)(PLGA-PEG-PLGA))to form an effective antioxidant system(Cu-ZIF@Hydrogel).The thermosensitive hydrogel incorporating nanozymes demonstrate distinct viscoelastic properties aimed at enhancing local nanozyme adhesion,prolonging nanozyme retention time,and modulating antioxidant activity,thus significantly improving the bioavailability of *** the cellular and animal levels of PD,we find that Cu-ZIF@Hydrogel bypass the blood-brain barrier and efficiently accumulate in the nerve ***,the Cu-ZIF@Hydrogel significantly alleviate the PD’s behavioral and pathological symptoms by reducing the neuroinflammatory levels in the lesion ***,the hydrogel-incorporating nanozyme system holds great potential as a simple and reliable avenue for managing PD.

关键词： bioinspired nanozyme thermosensitive hydrogel Parkinson’s disease oxidative stress neuroinflammatory

Analysis of Reservoir Forming Conditions and Prediction of Continuous Tight Gas Reservoirs for the Deep Jurassic in the Eastern Kuqa Depression,Tarim Basin

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Acta Geologica Sinica(English Edition) 2011年第5期85卷 1173-1186页

作者： ZOU Caineng JIA Jinhua tao Shizhen tao xiaowan Research Institute of Petroleum Exploration and Development PetroChinaBeijing 100083China

The exploration targets in the Kuqa Depression at present are mainly structure traps in *** to the complexity of mountain distribution and reservoir forming conditions, the exploration of Jurassic in the eastern Kuqa Depression has been in a state of semi-stagnation since the discovery of the Yinan-2 gas *** to the concept and theory of 'continuous petroleum reservoirs' and the re-analysis of the forming conditions of the Yinan-2 gas reservoir and regional natural gas in the eastern Kuqa Depression,it is believed that the deep Jurassic has good natural gas accumulation conditions as well as geological conditions for forming continuous tight gas *** boundary of the Yinan-2 gas reservoir is not controlled by a structural *** downdip part of the structure is dominated by gas,while the hanging wall of the fault is filled by water and forming obvious inverted gas and *** gas reservoir has the normal temperature and ultrahigh pressure which formed in the near source or *** of these characteristics indicate that the Yinan-2 gas reservoir is different from conventional gas *** deep Jurassic in the eastern Kuqa Depression has multisets of source-reservoir-cap assemblages,which comprise interbedded sandstones and *** assemblages are characterized by a self-generation,self-preserving and self-coverage *** sandstones and coal measure mudstones are interbedded with each other at a large *** the source rocks,Triassic-Jurassic coal measure mudstones distribute continuously at a large scale and can generate and expel *** rocks contact intimately with the overlying sandstone *** the late stage of hydrocarbon expulsion,natural gas charged continuously and directly into the neighboring *** migrated mainly in a vertical direction over short *** ultra-high pressure and strong charging intensity,natural gas accumulat

关键词： forming condition continuous tight gas reservoir deep Jurassic eastern Kuqa Depression

Authigenic sulfide minerals and their sulfur isotopes in sediments of the northern continental slope of the South China Sea and their implications for methane flux and gas hydrate formation

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Chinese Science Bulletin 2007年第3期52卷 401-407页

作者： PU XiaoQiang ZHONG ShaoJun YU WenQuan tao xiaowan Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China Graduate University of Chinese Academy of Sciences Beijing 100039 China Guangdong Ocean University Zhanjiang 524088 China

This is a report of the study of the authigenic sulfide minerals and their sulfur isotopes in a sediment core (NH-1) collected on the northern continental slope of the South China Sea, where other geo-physical and geochemical evidence seems to suggest gas hydrate formation in the sediments. The study has led to the findings: (1) the pyrite content in sediments was relatively high and its grain size relatively large compared with that in normal pelagic or hemipelagic sediments; (2) the shallowest depth of the acid volatile sulfide (AVS) content maximum was at 437.5 cm (>2 μmol/g), which was deeper than that of the authigenic pyrite content maximum (at 141.5-380.5 cm); (3) δ 34S of authigenic pyrite was positive (maximum: +15‰) at depth interval of 250-380 cm; (4) the positive δ 34S coincided with pyrite enrichment. Compared with the results obtained from the Black Sea sediments by Jorgen-sen and coworkers, these observations indicated that at the NH-1 site, the depth of the sulfate-methane interface (SMI) would be or once was at about 437.5-547.5 cm and the relatively shallow SMI depth suggested high upward methane fluxes. This was in good agreement with the results obtained from pore water sulfate gradients and core head-space methane concentrations in sediment cores collected in the area. All available evidence suggested that methane gas hydrate formation may exist or may have existed in the underlying sediments.

关键词：南海北部大陆架沉积物自生硫化物矿物硫同位素甲烷天然气水合物黄铁矿

Geochemical characteristics and origin of light hydrocarbons in biogenic gas

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Science China Earth Sciences 2010年第6期53卷 832-843页

作者： HU GuoYi LUO Xia LI ZhiSheng ZHANG Ying YANG Chun LI Jin NI YunYan tao xiaowan Research Institute of Petroleum Exploration&Development PetroChinaBeijing 100083China China Petroleum University Beijing 102249China Research Institute of Petroleum Exploration&Development(Langfang) PetroChinaLangfang 065007China

The light hydrocarbon geochemical characteristics of biogenic gases from Sebei 1 gas field in the Qaidam Basin, Baoshan gas field in the Baoshan Basin and Alaxin gas field, Puqian gas pool, Aonan gas pool in the Songliao Basin are studied and the origin is discussed based on the composition and isotope data of gases. The isoalkane contents among light hydrocarbons in natural gas show a negative relationship with δ13C1 values. The isoalkane contents of the gases with δ13C1 values of less than ?60‰ are also high with more than 40% among light hydrocarbons in Sebei 1 gas field and Puqian gas pool. Moreover, the 2,2-dimethylbutane and 2-methylpentane, mainly sourced from bacteria, have predominance among isoalkanes, which suggests that light hydrocarbons in biogenic gases from these gas fields or pools were probably generated by microbial action. However, the cycloalkane contents among light hydrocarbons in biogenic gas are related to δ13C1 values positively. In Alaxin gas field and Aonan gas pool, where δ13C1 values of biogenic gases are less than ?60‰, the average contents of cycloalkane are higher than 44%. Light hydrocarbons among biogenic gases from these gas fields were probably generated by catalysis. The isoalkane and cycloalkane contents among light hydrocarbons from biogenic gases in the Baoshan gas field are both high, which might be generated by these two actions. The results show that the data of light hydrocarbons in biogenic gas can provide important information for understanding the generation mechanisms of light hydrocarbons during geological evolution and identifying biogenic gas and low mature gas.

关键词： biogenic gas light hydrocarbon isoalkane cycloalkane microbial action catalysis

Sulfur Isotope Composition of Evaporites in Different Strata in the Tarim Basin

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Acta Geologica Sinica(English Edition) 2014年第S1期88卷 251-252页

作者： tao xiaowan LI Ming LUO Ping HE Jinyou TIAN Han PetroChina Research Institute of Petroleum Exploration & Development School of Energy Resources China University of Geosciences

Evaporite series is both an important target area looking for high-quality large potash deposits,but also one of the main types of hydrocarbon *** and drilling results indicate that five sets of evaporites were developed

关键词： Tarim Basin evaporites sulfur isotope thermochemical sulfate reaction(TSR)

鄂尔多斯盆地东缘煤系富氦资源的发现及其资源潜力与勘探开发对策

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油气与新能源 2024年第4期36卷 38-48,66页

作者：刘祥柏陶士振杨秀春赵群刘自扬裴向兵王龙飞伊伟冯建秋张谭陈燕燕高建荣陶小晚宋泽章柳庄小雪李超正杨怡青陈悦中国石油勘探开发研究院北京100083 中石油煤层气有限责任公司北京100028 中国石油大学(北京)地球科学学院北京102249

中国氦气利用对外依存度高,资源安全问题突出,寻找氦气资源、明确氦气富集机理、寻找勘探开发对策是目前面临的紧迫任务。鄂尔多斯盆地煤系气资源十分丰富,目前的勘探开发成效显著。为查明鄂尔多斯盆地煤系氦气资源潜力及分布,在对鄂尔... 详细信息

中国氦气利用对外依存度高,资源安全问题突出,寻找氦气资源、明确氦气富集机理、寻找勘探开发对策是目前面临的紧迫任务。鄂尔多斯盆地煤系气资源十分丰富,目前的勘探开发成效显著。为查明鄂尔多斯盆地煤系氦气资源潜力及分布,在对鄂尔多斯盆地东缘(简称鄂东缘)煤系气系统取样检测的基础上,对鄂尔多斯盆地煤系氦气资源分布展开了研究。结果表明:鄂东缘三交北地区煤系气整体可以达到富氦天然气的标准,按2020年底的探明储量折算氦气探明储量约4000×10^(4) m^(3),因此,鄂尔多斯盆地煤系地层中或存在氦气富集区。大宁—吉县地区按2021年提交的深层煤层气探明地质储量1121.62×10^(8) m^(3)测算,折算深层煤层氦气探明储量约3400×10^(4) m^(3),因此,鄂尔多斯盆地具备建设煤系氦气战略储备基地的基础,建议加快三交北区块煤系氦气的分离开发,避免氦气资源的浪费。氦同位素比值揭示鄂东缘煤系氦气以壳源成因为主,三交北地区煤系地层具备良好的氦气富集条件,是煤系氦气资源勘查的重点地区,在开展煤系氦气资源普查的同时,应加强对煤系氦气资源勘查技术与富集规律研究,为有效利用煤系氦气提供技术支撑,以保障国家的氦气资源安全。

关键词：煤系气氦气资源潜力鄂尔多斯盆地