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Methane adsorption effected by pore structure of overmature continental shale:Lower Cretaceous Shahezi Formation,Xujiaweizi Fault,Songliao Basin

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Frontiers of Earth Science 2024年第1期18卷 172-187页

作者： Pengfei ZHANG Shuangfang LU Nengwu ZHOU Zizhi LIN xiangchun chang Junjian ZHANG Guo CHEN Yumao PANG Junjie WANG Hongsheng HUANG Qi ZHI College of Earth Science and Engineering Shandong University of Science and TechnologyQingdao 266590China Sanya Offshore Oil&Gas Research Institute Northeast Petroleum UniversitySanya 572025China School of Geoscience China University of Petroleum(East China)Qingdao 266580China College of Resources and Environment Yangtze UniversityWuhan 430100China

Overmature continental shale is commonly developed,but few studies have given insight into its pore structure and sorption *** techniques,including SEM,helium porosity and permeability,N_(2)/CO_(2)adsorption,MICP,and NMR,were used to detect the pore structure of shale from the Shahezi Formation,Xujiaweizi Fault,Songliao *** excess methane adsorption volumes were measured by the volumetric method and modeled by the Langmuir *** on the findings,the most developed pores are intraparticle pores in clay minerals,followed by the dissolution pores in feldspar,but organic pores are *** selected shales have low helium porosity(mean 1.66%)and ultralow permeability(mean 0.0498×10^(−3)μm^(2)).The pore throats are at the nanoscale,and the pore-throat size distributions are unimodal,with most less than 50 *** studied shales are characterized by the lower specific surface area(SSA)and pore volume(PV)but the larger average pore *** total SSA is contributed by the micro-and mesopores,while the PV is dominated by meso-and *** pore structures are more complex and controlled by multiple factors,such as mineral compositions and diagenesis,but organic matter is not *** maximum absolute adsorption methane volume(VL)is 0.97−3.58 cm^(3)/g(mean 1.90 cm^(3)/g),correlating well with the total SSA,SSA,and pore volume of micropores,which indicates that methane is mainly adsorbed and stored in micropores,followed by mesopores.

关键词： continental shale pore structure methane adsorption Shahezi Formation Songliao Basin

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车排子凸起东翼中生界原油生物降解程度评价

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沉积学报 2024年第4期42卷 1422-1432页

作者：苏蕾常象春徐佑德柳忠泉史兵兵山东科技大学地球科学与工程学院山东青岛266590 中国石化胜利油田分公司勘探开发研究院山东东营257015

【目的】车排子凸起中生界稠油资源丰富,但原油生物降解严重,制约了勘探进程。【方法】为明确车排子凸起东翼中生界原油的生物降解程度,对车排子凸起东翼侏罗纪和白垩纪储层样品抽提出的饱和烃和芳香烃进行了气相色谱—质谱(GC-MS)分析... 详细信息

【目的】车排子凸起中生界稠油资源丰富,但原油生物降解严重,制约了勘探进程。【方法】为明确车排子凸起东翼中生界原油的生物降解程度,对车排子凸起东翼侏罗纪和白垩纪储层样品抽提出的饱和烃和芳香烃进行了气相色谱—质谱(GC-MS)分析,采用分子地球化学指标,对其进行定性与定量评价。【结果】通过聚类分析,将原油分为Ⅰ、Ⅱ、Ⅲ、Ⅳ四类族群。PM(Peters and Moldowan)法分析结果表明Ⅰ_(1)类和Ⅱ_(1)类原油的生物降解程度达PM7,Ⅰ_(2)类和Ⅳ类原油的生物降解程度为PM8;Ⅱ_(2)类和Ⅲ_(1)类原油的生物降解程度为PM9,Ⅲ_(2)类原油生物降解程度为PM9+。基于优化的Manco法求得的MN_(1)值介于19693~215623,Ⅰ类原油的MN_(2)值介于769~919,Ⅱ类原油的MN_(2)值介于768~907,Ⅲ类原油的MN_(2)值介于906~954,Ⅳ类原油的MN_(2)值介于774~817。同一原油族群的Manco数与原油密度、黏度、非烃和沥青质含量均呈现良好的正相关性,与总烃呈现良好的负相关性。优化的Manco法成功厘定了生物降解程度在PM7-PM9+的储层样品,与PM等级评价具有一致性。【结论】与PM法相比,优化的Manco法对原油生物降解的识别分辨率更高。通过PM法定性评价和优化Manco法定量评价相结合,可以很好地揭示原油物性的变化,对稠油区的油气勘探有重要的指导作用。

关键词：生物降解 PM法优化Manco法中生界车排子凸起

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准噶尔盆地车排子凸起中生界稠油油源分析

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特种油气藏 2024年第1期31卷 39-47页

作者：尹艳芳常象春徐佑德苏蕾柳忠泉山东科技大学山东青岛266590 中国石化胜利油田分公司山东东营257015

为明确准噶尔盆地车排子凸起中生界稠油的油源,利用中生界原油的气相色谱-质谱分析结果,结合层次聚类分析法、生物标志物参数恢复法,对原油生物降解程度进行定量评价,对典型生物标志物原始质量进行恢复,并对严重生物降解的稠油进行油源... 详细信息

为明确准噶尔盆地车排子凸起中生界稠油的油源,利用中生界原油的气相色谱-质谱分析结果,结合层次聚类分析法、生物标志物参数恢复法,对原油生物降解程度进行定量评价,对典型生物标志物原始质量进行恢复,并对严重生物降解的稠油进行油源研究。结果表明:车排子凸起中生界原油生物降解级别达到6级以上(PM6),可细分为A1、A2两个族群。所提出的生物标志物参数恢复法进行油源对比效果显著,证实了A1原油与沙湾凹陷二叠系烃源岩具有亲缘性,A2原油可能来自沙湾凹陷二叠系烃源岩、车排子凸起石炭系烃源岩及四棵树凹陷侏罗系烃源岩的混合,主成分分析(PCA)进一步支持和验证了该结论。研究结果对深化车排子凸起中生界的油气勘探部署具有重要参考作用。

关键词：生物降解油源对比生物标志物参数恢复法中生界车排子凸起准噶尔盆地

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Geochemical analysis of mixed oil in the Ordovician reservoir of the Halahatang Depression,Tarim Basin,China

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Chinese Journal Of Geochemistry 2013年第4期32卷 347-356页

作者： CHENG Bin WANG Tieguan chang xiangchun State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum Shandong University of Science and Technology

In this study,12 crude oil samples were collected and analyzed from the Ordovician reservoir in the Halahatang Depression,Tarim Basin,*** the density of oil samples varies considerably,based on saturated hydrocarbon gas chromatographic(GC),saturated and aromatic hydrocarbon gas chromatographic-mass spectrometric(GC/MS) and stable carbon isotopic composition analyses,all the samples are interpreted to represent a single oil population with similar characteristics in a source bed or a source kitchen,organic facies and even in oil charge *** co-existence of a full suite of n-alkanes and acyclic isoprenoids with UCM and 25-norhopanes in the crude oil samples indicates mixing of biodegraded oil with fresher non-biodegraded oil in the Ordovician ***,according to the conversion diagram of double filling ratios for subsurface mixed crude oils,biodegraded/non-biodegraded oil ratios were determined as in the range from 58/42 to 4/*** on oil density and oil mix ratio,the oils can be divided into two groups:Group 1,with specific density>0.88(g/cm3) and oil mix ratio>1,occurring in the north of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines,and Group 2,with specific density<0.88(g/cm3) and oil mix ratio<1,occurring in the south of the pinchout ***,Group 2 oils with low densities and being dominated by non-biodegraded oils are better than Group 1 oils with respect to *** is suggested that more attention should be paid to the area in the south of the Upper Ordovician Lianglitage and Sangtamu Formation pinchout lines for further exploration.

关键词：塔里木盆地地球化学分析奥陶系混合油储层中国生物降解油密度变化

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Geochemical characteristics, genetic types, and controlling factors of natural gas in Jiyang Depression, Bohai Bay Basin (eastern China)

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Frontiers of Earth Science 2022年第3期16卷 601-622页

作者： Tianchen GE xiangchun chang Yuan ZHUANG Xiaojun LI College of Earth Science and Engineering Shandong University of Science and TechnologyQingdao 266590China Laboratory for Marine Mineral Resources Qingdao National Laboratory for Marine Science and TechnologyQingdao 266071China School of Ocean and Earth Science Tongji UniversityShanghai 200092China Petroleum Exploration and Development Research Institute Shengli Oilfield Company of SINOPECDongying 257015China

The Jiyang Depression is an important oil and gas production zone in the Bohai Bay *** a systematic investigation of the gas components and stable carbon isotopes,the genetic types of natural gas found in the Jiyang Depression were determined,that is,biogas,oilassociated gas,coal-derived gas,high-mature oil-related gas,and mantle-derived carbon dioxide(CO_(2)).From the results,natural gas in the Jiyang Depression can be divided into four *** I,which is distributed in the northwest area,is the only typical oil-associated *** II,distributed in the northeast area,is dominated by oil-associated gas,and involves biogas,coal-derived gas,and high-mature oil-related *** Ⅲ,distributed in the southeast area,has all genetic types of gas that are dominated by oil-associated gas and have mantle-derived CO_(2).Group IV,distributed in the southwest area,is dominated by biogas and involves coal-derived gas and oil-associated *** differences in each group illustrate the lateral distribution of the natural gas types is characterized by the eastern and southern areas being more complex than the western and northern areas,the vertical distribution of gas reservoirs has no obvious evolutionary *** main controlling factor analysis of the spatiotemporal changes of the gas reservoirs revealed that the synergy of geochemical characteristics,thermal evolution of the Shahejie Formation and Carboniferous-Permian source rocks,and sealing properties of various faults are jointly responsible for determining the gas reservoir spatiotemporal changes.

关键词： natural gas genetic types geochemical characteristics distribution law controlling factors Jiyang Depression

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地质工程专业学位硕士留学生教育服务一带一路探析

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中国地质教育 2024年第2期33卷 49-52页

作者：张涛常象春余继峰山东科技大学地球科学与工程学院山东青岛266590

“一带一路”倡议是地质工程专业学位硕士留学生教育的历史性机遇和挑战。依托“一带一路”国际合作,加强全英文品牌课程建设、“一带一路”专业实践基地建设、工程实践案例库建设和国际化导师队伍建设,是破解当前地质工程硕士留学生教... 详细信息

“一带一路”倡议是地质工程专业学位硕士留学生教育的历史性机遇和挑战。依托“一带一路”国际合作,加强全英文品牌课程建设、“一带一路”专业实践基地建设、工程实践案例库建设和国际化导师队伍建设,是破解当前地质工程硕士留学生教育瓶颈和推动研究生教育国际化跨越式发展的关键。

关键词：一带一路地质工程硕士专业学位留学生

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Recent advances in evaluation, evolution and quantitative characterization of tight reservoirs: Introduction

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Energy Geoscience 2022年第4期3卷 381-382页

作者： xiangchun chang Shuai Yin Shandong University of Science and Technology China Xi'an Shiyou University China

Unconventional resources will significantly add to the petro-leum reserves and their contribution to global gas/oil production is expected to increase to 25%over the next two ***,unconventional reservoirs of coal methane,shale gas,tight sand-stone gas and gas hydrate have complex pore structures and are typically tight with porosity and permeability much lower than conventional reservoirs(Pang et al.,2022;Yin et al.,2018a,2018b).The characterization of the pore structure and the study of micro-scale multiphase flow mechanism are extremely impor-tant for the understanding of unconventional *** studies show that emerging methodologies have become the most powerful in characterizing the dynamics of liquids in porous media from the nano-pore to fracture scale.

关键词： reservoirs shale evolution

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Compositional heterogeneity of crude oil and its origin in the Linnan subsag,Linyi County,Shandong Province

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Chinese Journal Of Geochemistry 2008年第4期27卷 377-383页

作者： chang xiangchun DUAN Yunge CHEN Qingchun MA Lixin School of Geo-information Science and Engineering Shandong University of Science and Technology Qingdao 266510 China Linpan Production Plant ofShenli Oilfield Company SINOPEC Linyi 251507 China

The Linnan subsag is the main oil producer of the Linpan oil zone. Based on the oil group composition,gas chromatography data and biomarker analysis,it was indicated that crude oils from different oilfields varied greatly in group composition and showed obvious heterogeneities in the aspects of precursor type,crude oil maturity and hydrocarbon depositional environment. According to the characteristics of source rocks,three oil populations can be distinguished,i.e.,the southern,northern and transitional oil populations. Furthermore,on the basis of post-reservoir reworking processes,the medium conditions of hydrocarbon-generating environment and differences in maturity,six oil families and twelve sub-families were distinquished. An integrated study suggested that the fac-tors leading to such heterogeneities in crude oil composition mainly include different source rocks,multi-stage oil/gas charging,geo-chromatographic effects during oil/gas migration,reservoir heterogeneities and various post-reservoir secondary alterations.

关键词：天然石油异质性岩石成熟度

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Geochemical characteristics of aromatic hydrocarbons in crude oils from the Linnan Subsag, Shandong Province, China

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Chinese Journal Of Geochemistry 2011年第1期30卷 132-137页

作者： chang xiangchun HAN Zuozhen SHANG Xiaofei YAN Chengpeng Shandong Provincial Key Laboratory of Depositional Mineralization and Sedimentary Minerals Shandong University of Scienceand Technology Qingdao 266510 China

Abundant aromatic fractions were detected in oils from the Linnan subsag, including aphthalenes, phenanthrenes, triaromatic steroids, biphenyl, fluorenes, dibenzothiophenes, dibenzofuranes, as well as some typical higher plant-sourced compounds, such as pyrene, benzopyrene, fluoranthene, chryaene, benzofluoranthrene, perylene and cadalene. Occurrences of biomarkers indicate that oils from the Linnan subsag are typical terrestrially genetic oils. Developed in the depositional environment is a strong reduction condition typical of brackish-saline lake. Thermal evolution has entered into the mature-high mature stage.

关键词：碳氢化合物临南洼陷地球化学特征芳香族山东省原油中国成熟阶段

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A Comparative Study of the Coal-forming Characteristics of Marginal Sea Basins and Epicontinental Sea Basins

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Acta Geologica Sinica(English Edition) 2021年第1期95卷 121-130页

作者： ZHAO Honggang LI Ying chang xiangchun LI Zengxue LIU Haiyan ZHAO Cunliang The Shandong University of Science and Technology QingdaoShandong 266590China Shandong Jiaotong University Jinan 250357China Hebei University of Engineering HandanHebei 056038China

The coal-forming characteristics,as well as the similarities and differences between epicontinental sea basins and continental marginal sea basins developed during different time periods,were analyzed in this study by adopting comparative analysis thoughts and *** results obtained in this study revealed that epicontinental basins and marginal sea basins are both characterized by the main development of thin coal seams or extremely thin coal *** addition,changes in sea levels were determined to be the main controlling factors for coal formation,and there were similarities in the continent-sea interactions and coal-forming sedimentary systems of the different ***,there were also significant differences observed in the sea level change events,basin basement structural characteristics,coal seam stability levels,accumulation and aggregation characteristics,and the migration patterns of coal-forming *** example,the marginal sea basins in the South China Sea were found to be characterized by strong tectonic activities,diversity and *** basin structures showed complex patterns of depressions,uplifts and concave or sag uplifts,which tended to lead to greater complexity in the paleogeographic patterns of the coal *** had subsequently resulted in complex coal-forming processes and paleogeographic characteristics,in which the coal-forming zones displayed bead-like distributions,and the enrichment areas and centers were *** practical significance of studying the similarities and differences of the coal-forming characteristics between epicontinental basins and marginal sea basins is that the results can potentially be used to guide the predictions of coal-measure coal seam distributions in South China Sea,as well as provide valuable guidance for future explorations of natural gas reservoirs related to coal measures in the South China Sea area.

关键词： thin coal seams epicontinental sea basins marginal sea basins in South China Sea

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