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杭锦旗地区二叠系储层油气成藏期次及流体势特征

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吉林大学学报（地球科学版） 2024年第4期54卷 1110-1123页

作者：李晓光倪智勇宋到福张旋韩子敬张威安川中国石油大学(北京)油气资源与探测国家重点实验室北京102249 中国石油大学(北京)地球科学学院北京102249 中国石化华北油气分公司勘探开发研究院郑州450006

杭锦旗地区是鄂尔多斯盆地北部重要的含油气区,油气成藏期次及流体势研究有利于探究油气充注的世代以及流体势的分布特征,并进一步判定成藏期油气的运移方向。本文以什股壕区块和十里加汗区块5口井的二叠系下石盒子组盒一段储层砂岩为... 详细信息

杭锦旗地区是鄂尔多斯盆地北部重要的含油气区,油气成藏期次及流体势研究有利于探究油气充注的世代以及流体势的分布特征,并进一步判定成藏期油气的运移方向。本文以什股壕区块和十里加汗区块5口井的二叠系下石盒子组盒一段储层砂岩为研究对象,基于流体包裹体分析厘定油气成藏期次,并结合流体势理论计算研究区关键成藏期的流体势并揭示油气的运移方向。研究结果显示:什股壕区块盒一段储层油气的成藏时间为132~102 Ma;十里加汗区块盒一段储层油气的成藏时间为132~101 Ma。杭锦旗北部的什股壕盒一段储层油气的流体势为18 128~22 872 J/kg;杭锦旗南部的十里加汗区块盒一段储层油气的流体势为22 975~27 153 J/kg。本文认为研究区二叠系盒一段储层油气成藏时间在早白垩世,十里加汗区块整体的流体势要高于什股壕区块,油气具备由南部向北部运移的趋势。

关键词：流体包裹体成藏期流体势油气运移储层杭锦旗地区鄂尔多斯盆地

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Geochemical studies of the Silurian oil reservoir in the Well Shun-9 prospect area, Tarim Basin, NW China

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Petroleum Science 2013年第4期10卷 432-441页

作者： song daofu Li Meijun Wang T.–G State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum

Commercial oil flow has been obtained from the sandstone reservoir of the Lower Silurian Kelpintag Formation in the Well Shun-9 prospect *** the present studies,10 Silurian oil and oil sand samples from six wells in the area were analyzed for their molecular and carbon isotopic compositions,oil alteration（biodegradation）,oil source rock correlation and oil reservoir filling *** the Silurian oils and oil sands are characterized by low Pr/Ph and C21/C23 tricyclic terpane（〈1.0） ratios,＂V＂-pattern C27-C29 steranes distribution,low C28-sterane and triaromatic dinosterane abundances and light δ13C values,which can be correlated well with the carbonate source rock of the O3 l Lianglitage *** oil biodegradation levels have also been confirmed for the different oils/oil sands *** the S1k2 seal,oils and oil sands from the S1k1 interval of the Kelpintag Formation have only suffered light biodegradation as confirmed by the presence of ＂UCM＂ and absence of 25-norhopanes,whereas the S1k3-1 oil sands were heavily biodegraded（proved by the presence of 25-norhopanes） due to the lack of the S1k2 seal,which suggests a significant role of the S1k2 seal in the protection of the Silurian oil *** on the Ts/（Ts＋Tm） and 4-/1-MDBT ratios as reservoir filling tracers,a general oil filling direction from NW to SE has been also estimated for the Silurian oil reservoir in the Well Shun-9 prospect area.

关键词： Silurian oil reservoir Well Shun-9 prospect area geochemistry oil source rock correlation alteration oil reservoir filing direction

Petrology and geochemistry of the Carboniferous cutinite-rich coals from the Hequ area of Shanxi Province, China

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Science China Earth Sciences 2022年第10期65卷 2018-2032页

作者： daofu song Tieguan WANG Ping LI Jiadong YAN Xiangji ZHENG State Key Laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing 102249China

Coal samples taken from the Taiyuan Formation in the Hequ area, China, for this study are typical cutinite-rich *** petrology and geochemistry of the samples were analyzed using microscopic examination, proximate and ultimate analysis,rock pyrolysis, and gas chromatography-mass spectrometry(GC-MS). The cutinites in Haochuan(HC) coals are predominantly of the thin-walled type, whereas those in the Jingzigou(JZG) coals are predominantly thick-walled. The variable thickness of cutinites in different coals is related to the environment in which the coal-forming plants grew. Compared with typical Ⅲ kerogens, HC and JZG bituminous coals are characterized by high volatile matter yields and hydrogen contents due to the elevated hydrogen-rich cutinite content. Pyrolysis data indicate that these cutinite-rich coals can be expected to generate commercial liquid and gaseous hydrocarbons. Pristane(Pr) and phytane(Ph) are both abundant in the samples, with the Pr/Ph ratios for both the HC and JZG coals being >3.0, indicating moderate maturity and oxic peat depositional conditions. The C>>C>Cnormalized relative abundance of regular steranes is consistent with a dominant contribution from higher *** hopanes in the coals also suggest a substantial organic matter input from bacteria, which are common inhabitants of peat and coal. Palynology studies indicate that pteridophytes are likely to be the most common coal-forming plants. A gymnosperm contribution is also indicated by the presence of tetracyclic diterpenes. Massive accumulations of cuticles as cutinite in coal are rare and account for only a small proportion of coals worldwide. However, cutinite-rich coals are found in the northern margin of the North China Craton, in the Taiyuan Formation. The accumulation of cutinite in this area is the result of distinctive peat deposition conditions. Frequent marine transgression was an important contributing factor.

关键词： Cutinite-rich coal Carboniferous Coal petrology Geochemistry Hequ area

Origin,Distribution and Geochemical Significance of Isopropyltoluene Isomers in Crude Oil

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Journal of Earth Science 2022年第1期33卷 215-228页

作者： Bingkun Meng daofu song Yuan Chen Shengbao Shi Shixin Zhou Northwest Institute of Eco-Environment and Resources Chinese Academy of SciencesLanzhou 730000China University of Chinese Academy of Sciences Beijing 100049China State Key Laboratory of Petroleum Resources and Prospecting College of GeosciencesChina University of PetroleumBeijing 102249China

With comprehensive two-dimensional gas chromatography linked to time-of-flight mass spectrometry(GC × GC-TOFMS),ten light hydrocarbon(LH) compounds were qualitatively and quantitatively studied in light hydrocarbons(LHs) components of crude *** significant differences in the concentrations of 3-isoproyltoluene(3-iPT),4-isoproyltoluene(4-iPT) and 2-isoproyltoluene(2-iPT) in crude oils,and the 2-iPT probably derived mainly from similar skeleton monocyclic terpenoids via dehydrogenation and aromatization,the ratios of(3+4)-/2-iPT(iPTr),3-/2-iPT(iPTr1) and 4-/2-iPT(iPTr2) are proposed to distinguish the organic matter origin of crude *** higher iPTr(>8.0),iPTr1(>7.0) and iPTr2(>4.0) values indicate that crude oils are sourced from the co-contribution of lower aquatic organisms,bacteria,algae,and terrestrial higher plants,whereas lower iPTr(<5.0),iPTr1(<3.0),iPTr2(<2.0) values suggest that crude oils originated from terrestrial higher *** iPTr,iPTr1,and iPTr2 values show notable distinction which is mainly controlled by 2-iPT concentrations,while the concentrations of 3-iPT and 4-iPT have similar distribution range in all studied *** 2-iPT depleted in marine oils from the Tarim Basin and lacustrine oils from the Beibuwan Basin is less than 0.30 mg/g LHs,whereas 2-iPT enriched in swamp oils from the Tarim Basin is greater than 0.50 mg/g *** iPTr,iPTr1,and iPTr2 ratios and 2-iPT concentrations can be used to distinguish the organic matter origin of crude oils,especially for light oils and condensates with low concentrations of biomarkers.

关键词： organic carbon GC×GC-TOFMS light oils and condensates organic matter origin

Discovery of cutinitic liptobiolith in northwestern China and a comparative study with Luquan Devonian coal

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Science China Earth Sciences 2021年第4期64卷 642-650页

作者： daofu song Tieguan WANG Ningning ZHONG Yuan CHEN Dengfa HE Di LI State Key Laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing 102249China School of Energy1 Resources China University of GeosciencesBeijing 100083China

Devonian cutinitic liptobiolith is a special cuticle-rich coal formed during the early stage of land plant evolution. In China, this special coal has previously only been reported in the Yangtze area, with the Luquan Devonian cutinitic liptobiolith of Yunnan Province being the most well-known. Recently, this type of coal was first discovered in the Bulonggoer Sag, to the northwest of the Junggar Basin, NW Xinjiang. Its geological age is regarded as the Givetian period of the late Middle Devonian,which is equivalent to the age of the Luquan Devonian coal. The cutinitic liptobiolith from NW Xinjiang has a distinct sheet-like texture resembling a stack of paper or leaf sheets in appearance, and so it is commonly called "paper coal" or "leaf coal". Ribbonlike cutinite(thick-walled type) is the most abundant maceral in the coal(>60% and up to 80%, on a mineral-free basis), followed by ribbon-like collotelinite. The NW Xinjiang and Luquan cutinitic liptobioliths share similar maceral compositions;while their coal-forming plants and depositional conditions are distinct. The NW Xinjiang cutinitic liptobiolith was deposited in a regional fluvial or flood plain condition, with lycopsids as the dominant coal-forming plants. In contrast, the Luquan cutinitic liptobiolith formed in a coastal-lagoon environment, with primitive ferns as the predominant coal-forming plants, followed by lycopsids. The saturated fractions of the NW Xinjiang and Luquan liptobioliths are mainly composed of tetracyclic diterpanes. However, the tetracyclic diterpane compositions in the NW Xinjiang cutinitic liptobiolith are distinct from those in the Luquan Devonian coal:The former is dominated by atisanes and the latter is mainly composed of phyllocladanes. Different coal-forming plants may have contributed to the distinct tetracyclic diterpane compositions.

关键词： NW China Devonian Cutinitic liptobiolith Coal petrology Biomarkers Coal-forming plants

Detrital Zircon U-Pb Ages of the Zhaojiazhuang Formation, Middle–South Section, Taihang Mountains, China and their Geological Significance

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Acta Geologica Sinica(English Edition) 2019年第3期93卷 765-768页

作者： LYU Qiqi LUO Shunshe WANG Tongshan song daofu TAN Cong ZHANG Yan GUAN Yulong School of Geosciences Yangtze UniversityWuhan 430100China State Key Laboratory of Petroleum Resources and Prospecting China University of PetroleumBeijing 102249China Petro China Research Institute of Petroleum Exploration&Development Beijing 100083China

The sedimentary Zhaojiazhuang Formation overlies the ancient Paleo-proterozoic crystalline basement in the middle-south sections of the Taihang Mountains,*** is a complete stratigraphic sequence with clear *** formation has an angular unconformity with the underlying Paleo-proterozoic Tongyu Formation and a parallel unconformity with the overlying Changzhougou Formation from the Changcheng System,which is widely distributed throughout the W utai-Zhongtiao-T aihang *** Zhen et al.(2007)and Wang Qingchun et al.

关键词： Taihang Mountains Detrital Zircon U-Pb

三塘湖盆地火山灰对沉积有机质的富集效应及凝灰质烃源岩发育模式

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石油学报 2013年第6期34卷 1077-1087页

作者：王书荣宋到福何登发中国石油化工股份有限公司石油勘探开发研究院北京100083 中国石油大学地球科学学院北京102249 中国地质大学能源学院北京100083

勘探实践表明,有些凝灰质岩具有很高的产烃能力,可以作为非常好的生油岩。但有关凝灰质岩中有机质富集的原因,却一直没有得到解决。基于三塘湖盆地石炭系凝灰质泥岩岩石学和地球化学特征分析,探讨了火山灰对沉积有机质的富集效应。研究... 详细信息

勘探实践表明,有些凝灰质岩具有很高的产烃能力,可以作为非常好的生油岩。但有关凝灰质岩中有机质富集的原因,却一直没有得到解决。基于三塘湖盆地石炭系凝灰质泥岩岩石学和地球化学特征分析,探讨了火山灰对沉积有机质的富集效应。研究发现,三塘湖盆地石炭系凝灰质泥岩有机质丰度要比同层位地层中泥岩的有机质丰度高很多,表明火山灰对有机质的富集起到了重要作用。凝灰质烃源岩干酪根显微组分以腐泥组的矿物沥青基质和层状藻类体为主、干酪根碳同位素较轻、正构烷烃为前单高峰型(主峰碳以nC15、nC17或nC19为主)以及规则甾烷、藿烷含量丰富等均表明三塘湖盆地石炭系凝灰质泥岩有机质主要来源于藻类/细菌等低等生物。火山喷发产生的气体及飘落在海水中的火山灰物质,可以在海水中释放大量的营养元素和铁元素,促进藻类/细菌的大量繁盛。这些大量繁殖的藻类/细菌是凝灰质泥岩中有机质的重要来源,也是凝灰质泥岩中有机质富集的重要原因,据此,结合前人研究成果初步建立了凝灰质烃源岩发育模式。

关键词：三塘湖盆地火山灰凝灰质泥岩有机质富集有机质来源发育模式

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断层相的概念及应用

地球科学进展 2010年第9期25卷 907-914页

作者：宋到福何登发中国地质大学海相储层演化与油气富集机理教育部重点实验室北京100083

断层相是相分析方法在断层研究中的应用,它实现了对断层三维空间结构、断层结构单元及断层内部岩石物性特点的精确描述。从空间展布上来看,断层具有明显的带状结构,可以将其划分为破碎带和诱导裂缝带2部分。结构单元是断层空间的基本组... 详细信息

断层相是相分析方法在断层研究中的应用,它实现了对断层三维空间结构、断层结构单元及断层内部岩石物性特点的精确描述。从空间展布上来看,断层具有明显的带状结构,可以将其划分为破碎带和诱导裂缝带2部分。结构单元是断层空间的基本组成,也是断层相研究的基本对象。通过应用断层相分析手段对典型断层包络体内部变形特点进行精确描述,介绍了断层相在实际工作中的研究方法,并最终建立了硅质碎屑岩地层中拉张性断层相模式。分析表明,断层相分析方法对于研究断层的封闭性和稳定性具有非常重要的理论意义,在油气勘探开发及工程建设过程具有广泛的应用价值。

关键词：断层相断层结构断层结构单元断层封闭性断层稳定性

准噶尔盆地西北缘布龙果尔凹陷构造变形特征解析

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地质科学 2011年第3期46卷 679-695页

作者：宋到福何登发李涤王书荣中国地质大学海相储层演化与油气富集机理教育部重点实验室北京100083 中国石油化工股份有限公司石油勘探开发研究院北京100083

布龙果尔地区位于谢米斯台与沙尔布尔提褶皱造山带的交汇部位,该区构造复杂,至今仍属于研究的空白区域。此次在1:200000和1:50000地质图及地质报告的基础上,结合野外实地构造考察,对区内的构造发育特征进行了详细的分析研究。强烈的构... 详细信息

布龙果尔地区位于谢米斯台与沙尔布尔提褶皱造山带的交汇部位,该区构造复杂,至今仍属于研究的空白区域。此次在1:200000和1:50000地质图及地质报告的基础上,结合野外实地构造考察,对区内的构造发育特征进行了详细的分析研究。强烈的构造运动导致区内不整合发育,根据这些不整合,可以将研究区中泥盆统一第三系地层划分为6个主要构造层。布龙果尔地区断裂非常发育,其中压扭性断层最为发育并具有规模大,与区域地层走向、褶皱轴线平行展布的特点;扭性断层亦很发育,与压扭性断层配套出现;张性断裂区内不发育,仅在局部可见。区内的褶皱主要是在海西、燕山及喜马拉雅山构造运动时期形成,不同构造时期形成的褶皱在规模、延伸方向及其与断裂的关系方面均具有不同的特征。研究表明,布龙果尔地区构造演化过程具有明显的阶段性,其中海西、燕山及喜马拉雅山期构造运动是区内3个最主要的构造演化阶段。

关键词：布龙果尔地区构造层构造特征断裂褶皱不整合构造演化