• <tr id="yyy80"></tr>
  • <sup id="yyy80"></sup>
  • <tfoot id="yyy80"><noscript id="yyy80"></noscript></tfoot>
  • 99热精品在线国产_美女午夜性视频免费_国产精品国产高清国产av_av欧美777_自拍偷自拍亚洲精品老妇_亚洲熟女精品中文字幕_www日本黄色视频网_国产精品野战在线观看 ?

    Geochemical characteristics and families of the Paleozoic oil seepage and solid bitumen in the Southern Guizhou Depression, SW China

    2015-02-07 09:09:02?????
    Acta Geochimica 2015年1期

    ?????

    Geochemical characteristics and families of the Paleozoic oil seepage and solid bitumen in the Southern Guizhou Depression, SW China

    Ningxi Li?Guangli Wang?Bo Gao?
    Xianqing Li?Shengbao Shi?Tieguan Wang

    Fifteen oil seepage and solid bitumen samples in the Southern Guizhou Depression were analyzed with GC–MS.Characteristics of molecular markers and carbon isotopes are discussed systemically.The results showed that the oil seepage and solid bitumen samples in the Southern Guizhou Depression could be divided into two families:Ordovician and Siluric samples,and Permian samples.The two families are different in alkanes distribution,biomarkers,aromatic hydrocarbon composition, and stable carbon isotopes;differences mainly caused by source rock variation.

    Solid bitumen·Oil families·Fossil reservoir

    1 Introduction

    From the 1950s,Lower Paleozoic fossil and remnant reservoirs were found in the Southern Guizhou Depression and its peripheral area in the southeast of Guizhou province(Fig.1). Superfcial drilling proved that Ordovician and Silurian strata containedoilandgasinuppercompositeanticlines.Inthe1970s, the‘‘number 8’’geological reconnaissance team discovered the Majiang fossil reservoir and Kaili remnant reservoir in which remained 3.53×108t of residual bitumen;they estimated original reserves were 16×108t(Han and Wang 1983).

    As a part of the Yangtze platform,the Southern Guizhou Depressionandits peripheralareaare similar toother parts of China in terms of sedimentation,structure,generation,and accumulation which have combined to make the region a favorableareatodiscoverlargeandmediumoilandgasfelds. Analysis of the fossil and remnant reservoirs could direct the exploration of marine carbonate strata in Southern China. Previous studies have not reached consensus on oil sources andstagesofaccumulation(Maetal.2004;Zhangetal.2007; GaoandLiu2008;TengerQinandZheng2008).Inthispaper, geochemical characteristics of the Paleozoic oil seepage and solid bitumen in the Majiang and Kaili areas are analyzed in detail,andoil–oilcorrelationandfamiliesarediscussed.Four oil seepage samples and eleven solid bitumen samples of the SouthernGuizhouDepressionwerecollectedandanalyzedby GC–MS;molecular markers of samples are correlated elaborately.According to the oil-correlation,geochemical alterations via generation,migration,and accumulation of crude oil are recognized which could help analyze oil sources and direct exploration deployment.

    2 Methods

    2.1 Geological background

    The Majiang fossil reservoir and Kaili remnant reservoir are both in known petroleum systems which have integratedsourcerock,reservoir,cap rock,and overlyingstrata(Fig.2). The fossil reservoir and remnant reservoir are located in the east of the Southern Guizhou Depression(Fig.3).The sedimentary characters are complex and include typical platform faciesandbasinfacieswithtransitionalslopefacies.Thereare several vertical groups of petroleum systems caused by tectonic activity.The petroleum system of the Majiang fossil reservoir is sourced from the Lower Cambrian basin facies mudstone,heldinLowerOrdovicianandSilurianWengxiang Group platform facies reservoirs,and sealed by the Silurian fourth member of the Wengxiang Group shore facies mudstone.Different from Majiang,the petroleum system of the Kailiremnantreservoirissourcedfromthefrstmemberofthe Wengxiang Group foreshore facies mudstone,held in the second and third members of the Wengxiang Group shore facies sandstone,and sealed by the fourth member of the Wengxiang Group mudstone.The structure of the oil trap in the southeastern Guizhou province formed by Duyun movement and Guangxi movement in the Caledonian orogeny, altered and damaged by Yanshan movement and Sichuan movement in the early Himalayan period(Han and Wang 1983;Zhangetal.2007;GaoandLiu2008;Xiangetal.2008).

    Fig.1 Location of the Southern Guizhou Depression

    Eight Paleozoic sections of the Majiang and Kaili areas were observed,and ffteen oil seepage and solid bitumen samples were collected(Fig.3).The sample from the Kaili H47 well is light oil;the Kaili Lushan Ordovician oil seepage is in limestone geode and Permian oil seepage occurrence isleaching.Thesampleswere crushed, extracted,and separated into four fractions(saturated hydrocarbon,aromatic hydrocarbon,non-hydrocarbon,and asphaltene).Saturated and aromatic hydrocarbon GC–MS and isotope analysis were performed.

    2.2 Method

    AnalysisofsaturatedandaromatichydrocarbonGC–MSwas conducted using Agilent 6890 gas chromatograph coupled with 5975i mass spectrometry,equipped with HP-5MS silica capillary column(standard is GB/T18606-2001).GC conditions:carrier gas is helium with a concentration of 99.999%; thetemperatureoftheinjectionportandtransferlineis300°C with a heating program that consists of holding at 80°C for 1 min,heating up to 310°C at a rate of 3°C per minute,and holding for 16 min.MS conditions:electron impact mode is70 eV;flamentcurrentfowis300 μA,andmultipliervoltage is 1,200 V,full scan.

    Fig.2 Stratigraphy and group of source-reservoir-seal in the Southern Guizhou Depression

    3 Results

    3.1 Gross compositions

    Saturated and aromatic hydrocarbons comprise the majority in oil seepage samples.The ratio of saturated hydrocarbon to aromatic hydrocarbon(S/A)of the Kaili Lushan Permian oil seepage is low at 0.75;three other oil seepage samples have ratios of 2 to 3.Solid bitumen’s major fractions are non-hydrocarbon and asphaltene;the S/A ratio of solid bitumen in the Kaili and Majiang areas is low. The Majiang Ordovician and Lushan Silurian solid bitumen are rich in saturated and aromatic hydrocarbon fractions,in contrast to other bitumen samples.The asphaltene fraction of Duyun Devonian solid bitumen is high at 94.49%(Table 1).

    In general,oil seepages are rich in saturated and aromatic hydrocarbon fractions in comparison to solid bitumen samples(the Majiang Ordovician and Lushan Silurian samples are exceptions).The S/A ratios of upper Paleozoic samples are low at 0.24 to 0.75;lower Paleozoic samples from the Majiang area are high at 5.13 to 18.

    3.2 Saturated hydrocarbons

    3.2.1 n-Alkanes and acyclic isoprenoids

    As the most abundant of saturated hydrocarbon,n-alkanes provide key information about geochemical character which provides insight into organic matter types,sedimentary environment,thermal evolution stage,and biodegradation(Tissot and Welte 1984;Zhang et al.2005; Yang et al.2006).

    C13–C24alkanes dominate oil seepage and solid bitumen samples,although alkanes range from C11to C36with a single peak.On average the C21-/C22+ratio in the Majiang area is 2.88,higher than the Kaili area with a ratio of 1.79. CPI and OEP values are all around at 1.0 which indicates for mature stage(Table 2).

    The concentration of isoprenoid alkanes is second to n-alkanes in crude oil.Pr/Ph,Ph/nC18,and Pr/nC17 could indicate organic facies and maturity(Mei and Liu 1980; Peters and Moldowan 1993).The values of Pr/Ph in the southern Guizhou Depression are distributed from 0.62 to 1.44,with an average of 1.13 in the Duyun area,which displays higher ratios than the Majiang and Kaili areas.Ph/ nC18 and Pr/nC17 exhibit the typical character of marine crude oil(Fig.4).

    The correlation plate of Pr/Ph and DBT/PH built by Hughes could provide information about the lithology and sedimentary environment(Hughes et al.1995).DBT/PH values of Permian samples in the Kaili Lushan and Mjiang areas are greater than 2,and the lower Paleozoic samples are less than 1(Fig.5).

    3.2.2 Steranes

    C27regular sterane is from plankton;C29regular sterane is from phytoplankton and higher plants.C27,C28,and C29regular sterane distribution could refect sources of sedimentary organic matter which is signifcant to the study of oil source,so the composition of sterane series is utilized to divide samples by genetic type(Peters and Moldowan 1993).

    The relative content of C27regular sterane is 13%–69%,PH-1 is too low and is caused primarily by secondary alterations and not by a different source(Fig.6). The Permian samples in the Lushan area are low,in contrast to the lower Paleozoic samples.Distinct oil source isthe main control factor,and the lower Paleozoic samples’regular sterane distribution is like an asymmetric‘‘V’’(C27>C28<C29).

    Fig.3 Location of Majiang fossil reservoir,Kaili remnant reservoir and samples

    Table 1 Fractions composition of samples

    Table 2 GC-MS data of samples

    Fig.4 Crossplot of ratios Ph/nC18 and Pr/nC17

    Fig.5 Crossplot of ratios Pr/Ph and DBT/PH

    3.2.3 Terpanes

    Tricyclic terpane and hopane are very important biomarkers in crude oil.The ratio of C21/C23tricyclic terpane and C24tetracyclic terpane/C26tricyclic terpane can provide information about maturity and migration(Huang et al.1987).Tricyclic terpane content of collected samples is high and dominated by C23TT;the C21/C23tricyclic terpane ratio is less than 1.The C24tetracyclic terpane/C26tricyclic terpane ratio of the Lushan Permian samples is greater than others(Fig.7).

    C3017α(H)-diahopane in crude oil is considered to be derived from hop-17(21)-ene intermediates via an allylic oxidation step at C-15 and C-16,and double bond formation and rearrangement involving the methyl group at C-14 during diagenesis(Peters and Moldowan 1993;Li et al. 2009).Depositional conditions such as Eh–pH and clay content have greater C30diaH(Philip and Gilbert 1985; Wang et al.2000;Zhao and Zhang 2001).The C30diaH/ C30H ratio of the Kaili Permian oil seepage is greater than others(>0.5);the greater value indicates a sedimentary environment of shore shallow lake and swamp facies,with the greater C30diaH value of Kaili Permian oil seepage probably caused by a distinct sedimentary environment (Fig.8).

    3.3 Fluorene series

    The aromatic hydrocarbon fraction is a signifcant component in crude oil and provides geochemical informationabout sedimentary environment,sources,and maturity(Li and He 2008).Fluorene,dibenzothiophene,and dibenzofuran are similar in structure;Lin and Huang found that dibenzothiophene and dibenzofuran were related to oxidation or deoxidation environments(Lin et al.1987).In general,a greater value of dibenzothiophene indicates that crude oil and source rock formed in a marine saline environment with strong deoxidation.

    Fig.6 Ternary diagram of C27, C28and C29sterane composition

    Fig.7 Crossplot of ratios C21/ C23tricyclic terpane and C24tetracyclic terpane/C26tricyclic terpane

    Fig.8 Crossplot of ratios Ts/ (Ts+Tm)and C30diaH/C30H hopanes

    Contents of fuorene less than 30%,and greater dibenzothiophenevaluesrefectthedeoxidationenvironment.The dibenzofuran content of the Kaili Ordovician and Silurian samples is greater than others with a range of 15%to 27% (Fig.9).

    3.4 Carbon isotope

    Hydrocarbons inherit the carbon isotopes of the source organic matter and are affected by fractionation via thermal evolution processes.Generally speaking,differences in the stable carbon isotope(δ13C)fraction between samples ofthe same source crude oil affected by thermal evolution would not be greater than 3‰ (Peters and Moldowan 1993;Stahl 1977),whereas δ13C differences greater than 3‰imply different oil sources.δ13C of the Kaili Permian oil seepage is-28‰,making it distinct from Ordovician and Silurian Oil seepage(Fig.10).Solid bitumen samples display a similar pattern,except for the Duyun and Kaili Lushan Ordovician and Silurian samples—a difference that is caused by variations in maturity(Fig.11).

    Fig.9 Ternary diagram of fuorene,dibenzothiophene and dibenzofuran composition

    Fig.10 Stable carbon isotope of oil seepage

    Fig.11 Stable carbon isotope of solid bitumen

    4 Discussion

    Oil correlation shows that oil seepage and solid bitumen of the Southern Guizhou Depression can be divided into two families.One is the Permian samples which have a lower S/A ratio and a greater ratio of DBT/PH.Lower content of C27regular sterane indicates less plankton input.A greater ratio of C24FT/C26TT and C30diaH/C30H indicates a distinct sedimentary environment. Greater contentofdibenzothiophene,lower content of dibenzofuran,and heavier stable isotopes refect that the Permian samples have a different source rock from the lower Paleozoic samples.

    The second family is O–S oil seepage and solid bitumen with a ratio of DBT/PH less than 1,representing characteristic marine facies hydrocarbons.C27–C28–C29regular sterane is distributed like an asymmetrical‘‘V’’,indicating mainly sources are plankton.The ratio of C21TT/C23TT less than 1,C24FT/C26TT less than 2,and C30diaH/C30H less than 0.5 generally indicate an oxygen-poor and lowclay environment.Richness in dibenzothiophene and dibenzofuran refects a reduced environment;stable isotope are light besides individual samples affected by maturity.

    The differences in the geochemical characteristics between the O–S and P oil seepage and solid bitumen are caused by different source rocks.O–S samples are generated from Lower Cambrian source rock and the Permian samples may be from Lower Permian source rock.CPI and OEP are balanceable and the maturity of solid bitumen is higher.

    5 Conclusion

    The oil seepage and solid bitumen in the Southern Guizhou Depression can be divided into two families:Permian samples and lower Paleozoic samples.The two families are different in alkane distribution,biomarkers,aromatic hydrocarbon composition,and stable carbon isotopes due to variations in source rock.

    AcknowledgmentsWe thank Dr Jin Zhijun,Dr Liu Dongsheng, and Zhou Dikang for their help with outcrop investigations;and two anonymous reviewers for comments and suggestions.This work was funded by the State Key Project of Petroleum(2008ZX05005-001-009HZ),the NationalNaturalScience Foundation ofChina (41172126),the State Key Laboratory of Petroleum Resources and Prospecting(PRP2010-01)and the Science Foundation of China University of Petroleum(LLYJ-2011-05 and KYJJ-2012-01-01).

    Reference list

    Gao L,Liu GY(2008)Analysis on oil source of lower Palaeozoic crude oil from kaili area in Guizhou Province(in Chinese). Petrol Geol Exp 30:186–191

    Han SQ,Wang SD(1983)Petroleum generation and catagenesis in the lower Paleozoic of eastern Guizhou(in Chinese).Petrol Geol Exp 5:3–7

    Huang SF,Lin JH,Wei D et al(1987)Preliminary study on geochemical signifcation of tetracyclic teranes in sediments and crude oils(in Chinese).Acta Sedimentol Sin 5:127–136

    Hughes WB,Holba AG,Dzou LIP(1995)The ratios of dibenzothiophene to phenanthrene and pristane to phytane as indicators of depositional environment and lithology of petroleum source rocks.Geochim Cosmochim Acta 59:3581–3598

    Li SF,He S(2008)Geochemical characteristics of dibenzothiophene, dibenzofuran and fuorene and their homologues and their environmental indication(in Chinese).Geochimica 37(1):45–50

    Li MJ,Wang TG,Liu J et al(2009)Biomarker 17α(H)diahopane:a geochemical tool to study the petroleum system of a Tertiary lacustrine basin,northern south China sea[J].Appl Geochem 24:172–183

    Lin RZ,Wang PR,Dai YJ et al(1987)Petroleum geochemical characteristics of PAHs in fossil fuel(in Chinese).Geological society of China,Chinese petroleum society,Chinese society of mineralogy petrology and geochemistry.Organic geochemistry memoir.Geological Publishing House,Beijing,pp 129–140

    Ma L,Chen H,Gan K,Xu K,Xu X,Wu G,Ye Z,Liang X,Wu S,Qu Y,Zhang P,Ge P(2004)Geotectonics and petroleum geology of marine sedimentary rocks in southern China.Geological Publishing House,Beijing,pp 513–534

    Mei BW,Liu XJ(1980)Chinese crude oil in the isoprenoid distribution and geological environment(in Chinese).Oil Gas Geol 1(2):99–115

    Peters KE,Moldowan JM(1993)The biomarker guide:interpreting molecular fossils in petroleum and ancient sediments.Prentice-Hall,Englewood Cliffs

    Philip RP,Gilbert TD(1985)Biomarker distribution in oils predominantly derived from terrigenous source material.In:Leythaeuser D,Rullkotter J(eds)Advances in organic geochemistry. Pergamon Press,Oxford,pp 73–84

    Stahl WJ(1977)Carbon and nitrogen isotopes in hydrocarbon research and exploration.Chem Geol 20:121–149

    Tenger Qin J,Zheng L(2008)Hydrocarbon potential on excellent hydrocarbon source rock in Southern Guizhou depression and its spacial-temporal distribution.Acta Geol Sinica 82:366–372(in Chinese with English abstract)

    Tissot BP,Welte DH(1984)Petroleum Formation and Occurrence:A New Approach to Oil and Gas Exploration 2nd edn.Springer, New York

    Wang CJ,Fu JM,Sheng GY et al(2000)18α(H)New hopane and 17α(H)diahopanes geochemical properties of compounds and applications(in Chinese).Sci Bull 45(13):1366–1372

    Xiang CF,Tang LJ,Li RF et al(2008)Episodic fuid activity in the superimposed basin:evidence from outcrop and fuid inclusion in Majiang fossil reservoir(in Chinese).Sci China Ser D-Earth Sci 38(Suppl):70–77

    Yang YC,Zhang ZH,Chang XC et al(2006)Geochemistry and genetic analysis of Well YN2 reservoir bitumen,Tarim basin(in Chinese).Miner Pet 26(2):92–96

    Zhang LY,Song YT,Wang GL et al(2005)Oil chemical composition of lacustrine source rocks of Ji yang depression and geological signifcance(in Chinese).Sci Bull 50(21):2392–2402

    Zhang Q,Tenger ZZ,Qin J(2007)Oil source of oil seepage and solid bitumen in the Kaili-Majiang Area.Acta GeolSinica 81(8):1118–1124(in Chinese with English abstract)

    Zhao MJ,Zhang SC(2001)The special sedimentary facies indicated by 17α(H)diahopanes in Tarim basin(in Chinese).Pet Explor Dev 28(1):36–38

    Received:6 December 2013/Revised:23 December 2013/Accepted:24 February 2014/Published online:30 December 2014 ?Science Press,Institute of Geochemistry,CAS and Springer-Verlag Berlin Heidelberg 2014

    N.Li·G.Wang·S.Shi·T.Wang

    State Key Laboratory of Petroleum Resources and Prospecting, and Department of Organic Geochemistry and Environmental Science,College of Geosciences,China University of Petroleum, Beijing 102249,China

    N.Li(?)

    School of Energy Resources,China University of Geosciences, Beijing 100083,China

    e-mail:liningxi@139.com

    B.Gao

    Exploration and Development Research Institute,Sinopec, Beijing 10083,China

    X.Li

    China University of Mining&Technology,Beijing 10083, China

    国产有黄有色有爽视频| 国产极品天堂在线| 欧美bdsm另类| 女人十人毛片免费观看3o分钟| 精品人妻熟女av久视频| 国产欧美日韩精品一区二区| 欧美xxⅹ黑人| 精品久久久久久电影网| 啦啦啦中文免费视频观看日本| 一级黄片播放器| 精品一区二区三卡| 22中文网久久字幕| 中文精品一卡2卡3卡4更新| 美女xxoo啪啪120秒动态图| 亚洲最大成人手机在线| 尤物成人国产欧美一区二区三区| 久久久久久久久久成人| 亚洲自拍偷在线| 亚洲精品乱久久久久久| 在线观看美女被高潮喷水网站| 女人十人毛片免费观看3o分钟| 男人狂女人下面高潮的视频| 黄色配什么色好看| 22中文网久久字幕| 综合色av麻豆| 亚洲最大成人手机在线| 国产美女午夜福利| 亚洲精品一区蜜桃| 秋霞伦理黄片| 欧美高清成人免费视频www| 涩涩av久久男人的天堂| 尾随美女入室| 国产精品一区二区性色av| 日韩av在线免费看完整版不卡| 国产男女内射视频| 精品少妇久久久久久888优播| 一本久久精品| 中文乱码字字幕精品一区二区三区| 国产一级毛片在线| 久久久久久久亚洲中文字幕| 中文资源天堂在线| 日本色播在线视频| 一级二级三级毛片免费看| 亚洲精品第二区| 免费黄网站久久成人精品| 中文字幕免费在线视频6| 久久精品国产亚洲av涩爱| 插逼视频在线观看| 国产一区二区三区av在线| 久久综合国产亚洲精品| 三级经典国产精品| 少妇人妻 视频| 成人特级av手机在线观看| 成年人午夜在线观看视频| 少妇的逼水好多| 免费av观看视频| 亚洲精品日韩在线中文字幕| 在线观看国产h片| 六月丁香七月| 黄色配什么色好看| 少妇人妻一区二区三区视频| 久久人人爽人人爽人人片va| 高清毛片免费看| 亚洲精品久久久久久婷婷小说| 国国产精品蜜臀av免费| 国产亚洲av片在线观看秒播厂| 日韩欧美 国产精品| 乱系列少妇在线播放| 亚洲欧美一区二区三区黑人 | 中文字幕av成人在线电影| 好男人视频免费观看在线| 欧美人与善性xxx| 久久久精品94久久精品| 久久久欧美国产精品| 亚洲av电影在线观看一区二区三区 | 一级毛片 在线播放| 老师上课跳d突然被开到最大视频| 国产一区二区在线观看日韩| 国国产精品蜜臀av免费| 美女视频免费永久观看网站| 婷婷色综合大香蕉| 水蜜桃什么品种好| 身体一侧抽搐| 一本一本综合久久| 国产午夜精品一二区理论片| 丰满乱子伦码专区| 乱码一卡2卡4卡精品| 亚洲国产精品专区欧美| 午夜老司机福利剧场| 夜夜看夜夜爽夜夜摸| 王馨瑶露胸无遮挡在线观看| 国产精品.久久久| 国产成人免费无遮挡视频| 天天一区二区日本电影三级| 有码 亚洲区| 国产一区有黄有色的免费视频| 亚洲国产av新网站| 成年av动漫网址| 又大又黄又爽视频免费| 国产色爽女视频免费观看| 大码成人一级视频| 九九爱精品视频在线观看| 久久99精品国语久久久| 一级黄片播放器| 自拍偷自拍亚洲精品老妇| 热re99久久精品国产66热6| 深夜a级毛片| 丝袜脚勾引网站| 精品国产露脸久久av麻豆| 高清欧美精品videossex| 欧美人与善性xxx| 国产男女内射视频| 国产日韩欧美在线精品| 亚洲精品乱久久久久久| 日韩视频在线欧美| 国产精品久久久久久av不卡| 26uuu在线亚洲综合色| 在线免费观看不下载黄p国产| 午夜福利在线在线| 免费看av在线观看网站| 3wmmmm亚洲av在线观看| 丝袜喷水一区| 少妇的逼好多水| 一个人看的www免费观看视频| 91久久精品国产一区二区成人| 亚洲国产日韩一区二区| 男人添女人高潮全过程视频| av在线app专区| 嘟嘟电影网在线观看| 韩国av在线不卡| 美女内射精品一级片tv| 我要看日韩黄色一级片| 97在线视频观看| 九色成人免费人妻av| 最近最新中文字幕免费大全7| 99热网站在线观看| 一级毛片 在线播放| 亚洲av.av天堂| 精品国产三级普通话版| 成人国产麻豆网| 中文欧美无线码| 国产黄频视频在线观看| 亚洲精品日韩在线中文字幕| 婷婷色麻豆天堂久久| 边亲边吃奶的免费视频| 欧美三级亚洲精品| 国产男女超爽视频在线观看| 十八禁网站网址无遮挡 | 亚洲精品影视一区二区三区av| 夫妻午夜视频| 涩涩av久久男人的天堂| 女的被弄到高潮叫床怎么办| 欧美丝袜亚洲另类| 午夜老司机福利剧场| 国产成人免费无遮挡视频| 一区二区三区四区激情视频| 欧美zozozo另类| 69人妻影院| 国产av国产精品国产| 欧美国产精品一级二级三级 | 在线观看国产h片| 3wmmmm亚洲av在线观看| 国产精品无大码| 久久99蜜桃精品久久| 22中文网久久字幕| 九九在线视频观看精品| 一级毛片黄色毛片免费观看视频| 精品国产露脸久久av麻豆| 欧美激情久久久久久爽电影| 精品少妇黑人巨大在线播放| 久久鲁丝午夜福利片| h日本视频在线播放| 欧美日韩综合久久久久久| 永久免费av网站大全| 纵有疾风起免费观看全集完整版| 你懂的网址亚洲精品在线观看| 亚洲三级黄色毛片| 真实男女啪啪啪动态图| 国产 一区 欧美 日韩| 欧美成人午夜免费资源| 性色av一级| 久久精品久久久久久久性| 国产精品99久久99久久久不卡 | 日日啪夜夜撸| 国产精品一区二区性色av| 成人免费观看视频高清| 国产午夜精品一二区理论片| 国产精品国产av在线观看| 最近最新中文字幕大全电影3| 在线观看人妻少妇| 久久精品国产a三级三级三级| 亚洲国产成人一精品久久久| 美女高潮的动态| 精品一区二区三区视频在线| 综合色av麻豆| 我要看日韩黄色一级片| 国产亚洲最大av| 精品一区在线观看国产| av一本久久久久| 2018国产大陆天天弄谢| 舔av片在线| 丰满人妻一区二区三区视频av| 日韩大片免费观看网站| 丰满人妻一区二区三区视频av| 亚洲美女视频黄频| 美女主播在线视频| 久久国产乱子免费精品| 日本午夜av视频| 亚洲欧美精品专区久久| 日韩欧美 国产精品| 欧美日韩一区二区视频在线观看视频在线 | 日韩av在线免费看完整版不卡| 全区人妻精品视频| 国产熟女欧美一区二区| 免费av不卡在线播放| 免费大片黄手机在线观看| 搞女人的毛片| a级一级毛片免费在线观看| 国产成人精品一,二区| 在线播放无遮挡| 免费黄网站久久成人精品| 亚洲精品国产av蜜桃| 久热久热在线精品观看| 麻豆乱淫一区二区| 美女视频免费永久观看网站| 国产乱人偷精品视频| 欧美一级a爱片免费观看看| 高清毛片免费看| 一级爰片在线观看| 小蜜桃在线观看免费完整版高清| 国产精品麻豆人妻色哟哟久久| 国产欧美日韩精品一区二区| 另类亚洲欧美激情| 国产伦理片在线播放av一区| 亚洲无线观看免费| 亚洲,欧美,日韩| 麻豆成人av视频| 国产成人精品福利久久| 看十八女毛片水多多多| 国产有黄有色有爽视频| 在线观看美女被高潮喷水网站| 日本猛色少妇xxxxx猛交久久| 久久影院123| 黄色怎么调成土黄色| 亚洲国产精品成人综合色| 国产成人免费无遮挡视频| 18禁在线播放成人免费| 欧美日韩精品成人综合77777| 亚洲国产av新网站| 嫩草影院精品99| 国产精品女同一区二区软件| 深爱激情五月婷婷| 91久久精品国产一区二区成人| 午夜福利视频1000在线观看| 亚洲欧美一区二区三区国产| 国产亚洲一区二区精品| 久久久久性生活片| 亚洲精品中文字幕在线视频 | 亚洲欧美成人综合另类久久久| 免费看日本二区| 精品少妇久久久久久888优播| 久久99热6这里只有精品| 亚洲精品一二三| 国内精品美女久久久久久| 日韩三级伦理在线观看| 国产一区二区亚洲精品在线观看| 大片免费播放器 马上看| 亚洲精品456在线播放app| 尾随美女入室| av免费观看日本| 亚洲内射少妇av| 建设人人有责人人尽责人人享有的 | 久久久久九九精品影院| 久久精品熟女亚洲av麻豆精品| 人妻夜夜爽99麻豆av| 日韩制服骚丝袜av| 一个人观看的视频www高清免费观看| 中文字幕人妻熟人妻熟丝袜美| 三级男女做爰猛烈吃奶摸视频| 亚洲怡红院男人天堂| 国产成人a∨麻豆精品| av线在线观看网站| 国产午夜精品久久久久久一区二区三区| 欧美性猛交╳xxx乱大交人| 91精品国产九色| 色综合色国产| 国产精品秋霞免费鲁丝片| 精品久久久久久久末码| 天堂网av新在线| 成人毛片a级毛片在线播放| 国产视频首页在线观看| 国产精品一二三区在线看| 欧美老熟妇乱子伦牲交| 国产亚洲5aaaaa淫片| 亚洲欧洲日产国产| 美女视频免费永久观看网站| 黄色日韩在线| 亚洲内射少妇av| 97精品久久久久久久久久精品| 人妻 亚洲 视频| 国产高潮美女av| 精品午夜福利在线看| 99久国产av精品国产电影| 久久精品熟女亚洲av麻豆精品| 婷婷色麻豆天堂久久| 寂寞人妻少妇视频99o| 少妇人妻精品综合一区二区| 一级毛片 在线播放| 2022亚洲国产成人精品| 国产极品天堂在线| 国产爱豆传媒在线观看| 国产免费一级a男人的天堂| 人妻制服诱惑在线中文字幕| 色婷婷久久久亚洲欧美| 午夜激情久久久久久久| 国产黄片美女视频| 看黄色毛片网站| 在线观看人妻少妇| 麻豆乱淫一区二区| 亚洲国产最新在线播放| 18禁在线播放成人免费| 日日啪夜夜撸| 国产精品一区二区性色av| 亚洲电影在线观看av| 久久精品熟女亚洲av麻豆精品| 精品国产露脸久久av麻豆| 亚洲自偷自拍三级| 一级黄片播放器| 亚洲,一卡二卡三卡| 欧美极品一区二区三区四区| 亚洲第一区二区三区不卡| 免费av毛片视频| 国产老妇伦熟女老妇高清| 免费看不卡的av| 在线观看一区二区三区| 舔av片在线| 51国产日韩欧美| 99re6热这里在线精品视频| 欧美bdsm另类| 国产老妇伦熟女老妇高清| 91狼人影院| 久久久午夜欧美精品| 欧美激情久久久久久爽电影| 内射极品少妇av片p| 国内揄拍国产精品人妻在线| 亚洲精品国产av成人精品| a级一级毛片免费在线观看| av在线观看视频网站免费| 卡戴珊不雅视频在线播放| 久久精品久久久久久久性| 欧美精品人与动牲交sv欧美| 欧美zozozo另类| 高清在线视频一区二区三区| 国产精品秋霞免费鲁丝片| 国产精品一区www在线观看| 寂寞人妻少妇视频99o| 亚洲av一区综合| 新久久久久国产一级毛片| 欧美bdsm另类| 狂野欧美激情性bbbbbb| 我的老师免费观看完整版| 青青草视频在线视频观看| 国产免费又黄又爽又色| 欧美bdsm另类| 久久精品夜色国产| 亚洲av中文字字幕乱码综合| 丝袜喷水一区| 亚洲欧美日韩卡通动漫| 在线观看av片永久免费下载| 插逼视频在线观看| 白带黄色成豆腐渣| 成年版毛片免费区| 一级毛片黄色毛片免费观看视频| 精品熟女少妇av免费看| 国产精品一区二区性色av| 一区二区三区精品91| av免费观看日本| 日韩伦理黄色片| 午夜福利在线观看免费完整高清在| 欧美日韩精品成人综合77777| 三级国产精品片| 老司机影院毛片| 欧美国产精品一级二级三级 | 精品国产露脸久久av麻豆| 日韩不卡一区二区三区视频在线| 一区二区三区乱码不卡18| 80岁老熟妇乱子伦牲交| 亚洲欧美成人综合另类久久久| 在线 av 中文字幕| 久久精品国产亚洲av涩爱| 亚洲精品乱久久久久久| 国产v大片淫在线免费观看| 国产精品久久久久久久电影| 国产视频首页在线观看| 国产大屁股一区二区在线视频| 男女边摸边吃奶| 69av精品久久久久久| 天堂网av新在线| eeuss影院久久| 亚洲成人久久爱视频| 成年版毛片免费区| 欧美性感艳星| 国产色婷婷99| 欧美bdsm另类| 建设人人有责人人尽责人人享有的 | 国产一区二区亚洲精品在线观看| 国产欧美日韩精品一区二区| 男女国产视频网站| 少妇 在线观看| 亚洲精品乱码久久久久久按摩| 熟女人妻精品中文字幕| 亚洲av中文字字幕乱码综合| 日韩人妻高清精品专区| 美女内射精品一级片tv| kizo精华| 亚洲一级一片aⅴ在线观看| 国产亚洲一区二区精品| 欧美xxⅹ黑人| 色播亚洲综合网| 成人午夜精彩视频在线观看| 国产成人免费观看mmmm| 干丝袜人妻中文字幕| 亚洲人成网站在线观看播放| 国产成人91sexporn| 久久人人爽人人片av| 国产午夜福利久久久久久| 亚洲国产精品成人综合色| a级一级毛片免费在线观看| 久久久久久久久大av| 在线观看人妻少妇| 亚洲欧洲日产国产| 在线精品无人区一区二区三 | 国产美女午夜福利| 街头女战士在线观看网站| 蜜桃亚洲精品一区二区三区| 亚洲综合色惰| 大又大粗又爽又黄少妇毛片口| 91久久精品国产一区二区三区| 亚洲,欧美,日韩| 国产免费视频播放在线视频| 精品国产露脸久久av麻豆| 久久久久网色| freevideosex欧美| 香蕉精品网在线| 亚洲伊人久久精品综合| 亚洲在线观看片| 男女边吃奶边做爰视频| 亚洲性久久影院| 久久韩国三级中文字幕| 三级国产精品欧美在线观看| 秋霞在线观看毛片| 免费播放大片免费观看视频在线观看| 国产亚洲av片在线观看秒播厂| 哪个播放器可以免费观看大片| 亚洲欧美一区二区三区国产| 亚洲欧美一区二区三区黑人 | 如何舔出高潮| 成人毛片a级毛片在线播放| 一级毛片我不卡| 欧美人与善性xxx| 中文精品一卡2卡3卡4更新| 中文字幕免费在线视频6| av在线观看视频网站免费| 国产精品久久久久久精品电影小说 | 午夜亚洲福利在线播放| 少妇人妻精品综合一区二区| 国产精品.久久久| 欧美性感艳星| 人妻 亚洲 视频| 国产成年人精品一区二区| 极品少妇高潮喷水抽搐| 亚洲美女视频黄频| 国产精品嫩草影院av在线观看| 午夜精品一区二区三区免费看| 国产男女超爽视频在线观看| 自拍欧美九色日韩亚洲蝌蚪91 | 午夜免费男女啪啪视频观看| 有码 亚洲区| 亚洲无线观看免费| 青春草亚洲视频在线观看| 大又大粗又爽又黄少妇毛片口| 欧美国产精品一级二级三级 | 国产亚洲av嫩草精品影院| 国产成人午夜福利电影在线观看| 大片电影免费在线观看免费| 伊人久久国产一区二区| 日韩精品有码人妻一区| 免费在线观看成人毛片| 日本黄大片高清| av国产久精品久网站免费入址| 亚洲精品一二三| 男女国产视频网站| 国产欧美日韩精品一区二区| av免费在线看不卡| 国产91av在线免费观看| 久久99蜜桃精品久久| 最近手机中文字幕大全| tube8黄色片| 三级男女做爰猛烈吃奶摸视频| 久久久国产一区二区| 99热全是精品| 久久久久久久久久成人| 亚洲伊人久久精品综合| 色婷婷久久久亚洲欧美| 日日摸夜夜添夜夜添av毛片| 久久久成人免费电影| 韩国高清视频一区二区三区| 交换朋友夫妻互换小说| 婷婷色av中文字幕| 精品久久久久久久久亚洲| 美女高潮的动态| 22中文网久久字幕| 久热久热在线精品观看| 深夜a级毛片| 天堂俺去俺来也www色官网| 99热网站在线观看| videos熟女内射| 在线观看一区二区三区| 国产淫语在线视频| 高清av免费在线| 久久久a久久爽久久v久久| av免费在线看不卡| 欧美97在线视频| av免费在线看不卡| 精品久久久噜噜| 99热网站在线观看| 91精品一卡2卡3卡4卡| a级毛片免费高清观看在线播放| 日本一本二区三区精品| 在线观看美女被高潮喷水网站| 尾随美女入室| 深爱激情五月婷婷| 最近中文字幕2019免费版| 精品久久久精品久久久| 欧美最新免费一区二区三区| 久久久久国产精品人妻一区二区| 男女啪啪激烈高潮av片| 中文乱码字字幕精品一区二区三区| 国产精品无大码| 在线亚洲精品国产二区图片欧美 | 麻豆精品久久久久久蜜桃| 又大又黄又爽视频免费| av专区在线播放| 又大又黄又爽视频免费| 久久久久久久精品精品| 亚洲av中文字字幕乱码综合| 一级毛片电影观看| 赤兔流量卡办理| a级毛片免费高清观看在线播放| 免费看不卡的av| av在线天堂中文字幕| 老女人水多毛片| 草草在线视频免费看| 麻豆精品久久久久久蜜桃| 亚洲精品亚洲一区二区| 亚洲国产色片| 九九在线视频观看精品| 亚洲人与动物交配视频| 久久99精品国语久久久| 麻豆乱淫一区二区| 少妇人妻一区二区三区视频| 成人亚洲精品av一区二区| 男女下面进入的视频免费午夜| 亚洲人成网站在线播| 国内揄拍国产精品人妻在线| 又爽又黄a免费视频| 各种免费的搞黄视频| 国产日韩欧美在线精品| 久久人人爽人人爽人人片va| 成人综合一区亚洲| 欧美少妇被猛烈插入视频| 亚洲人成网站在线观看播放| 久久ye,这里只有精品| kizo精华| 日韩av免费高清视频| 又爽又黄a免费视频| 男女下面进入的视频免费午夜| 久久久久精品性色| 久久久亚洲精品成人影院| 少妇人妻精品综合一区二区| 国产亚洲5aaaaa淫片| 在线免费观看不下载黄p国产| 王馨瑶露胸无遮挡在线观看| 久久亚洲国产成人精品v| 欧美少妇被猛烈插入视频| av福利片在线观看| 国产老妇伦熟女老妇高清| 男的添女的下面高潮视频| 精品亚洲乱码少妇综合久久| 国产一区亚洲一区在线观看| 日韩欧美一区视频在线观看 | 伦理电影大哥的女人| 午夜福利视频精品| www.av在线官网国产| 亚洲精品久久午夜乱码| 日韩,欧美,国产一区二区三区| 免费观看无遮挡的男女| 男的添女的下面高潮视频| 女人被狂操c到高潮| 日韩欧美精品v在线| 欧美97在线视频| 一级毛片 在线播放| 韩国av在线不卡| 欧美日韩精品成人综合77777| 国产精品久久久久久久久免| 亚洲av福利一区| 中文资源天堂在线| 搡老乐熟女国产| 网址你懂的国产日韩在线| 一本一本综合久久| 伦理电影大哥的女人| 亚洲综合精品二区| 欧美精品人与动牲交sv欧美| 免费观看的影片在线观看| 亚洲国产高清在线一区二区三|