Distribution of Yachen Formation Coal Measure in Yabei Sag in Qiongdongnan Basin
Received date: 2012-03-21
Revised date: 2012-06-26
Online published: 2012-08-10
Yabei sag lies in the western part of northern depression of Qiongdongnan basin in the continental margin of South China Sea,covering an area of nearly 3 000km2.After the sag was rifted in Paleogene,it accepted the Eocene continental formation,early Oligocene Yacheng transitional formation and later Oligocene Lingshui marine formation.Yacheng Formation is the most important source rock by obsevasing the drilled souce rocks and measuring the gas geochemerstry and making the source-gas correlation in the basin.Coal measure and carbonaceous mudstone are the most important components of source rock,and the drilled wells indicate that they occur from Yacheng-3,Yacheng-2 and Yacheng-1.Rockcores of shallow water area in the Yabei sag shows that the Yacheng-3 formation was formed in the fan-deta,braided stream,the Yacheng-2 was in lagoon,and the Yacheng-1 was in tidal flat facies.The coal meaure and carbonaceous mudstone are distributed mostly in the formations of Yacheng-1 and Yacheng-3.The Yacheng-3 in the Yabei sag shows the chaos seismic faices,the Yacheng-2 exhibits weak amplitude and low frequency and well continuation seismic facies,and the Yacheng-1 is strong amplitude,strong continuation and low frequency.It is good conrespond between seimic facies and sedimentary facies.The sedimentary facies maps drawn by rockcorea,well logging and seismics suggest that the Yacheng-3 was mostly in braided delta,the Yacheng-2 in the lagoon extended a lot,and the Yacheng-1 was mostly in tidal flat.Coal is mostly distributed in the slope of sag in braided delta and tidal flat and second along steep slope in fan-delta and tidal flat;dark mudstone is mainly in the deep area of lagoon.So,we consider that the greater distribution of coal in south slope of Yabei sag and dark lagoon facies,and the giant gas potential in shallow water area of Qiongdongnan basin is strong.
Key words： Transitional facies; Coal measure; Tidal flat facies; Yabei sag
ZHANG Gong-cheng,HE Yu-ping,SHEN Huai-lei . Distribution of Yachen Formation Coal Measure in Yabei Sag in Qiongdongnan Basin[J]. Natural Gas Geoscience, 2012 , 23(4) : 654 -661 . DOI: 10.11764/j.issn.1672-1926.2012.04.654
［1］Dai Jinxing,Hu Anping,Yang Chun,et al.Newest achievements
[JP]on gas exploration and its geoscientific theories in China［J］.Natural Gas Industry,2006,26(12):1-5.［戴金星,胡安平,杨春,等.中国天然气勘探及其地学理论的主要新进展［J］.天然气工业,2006,26（12）：1-5.］
［2］Zhang Gongcheng,Zhu Weilin,Mi Lijun,et al.The theory of hydrocarbon genernation controlled by source rock and heat from circle distribution of outside oil fields and inside gas fields in South China Sea［J］.Acta Sedimentologica Sinica,2010,28(5)：987-1005.［张功成,朱伟林,米立军,等.“源热共控论”:来自南海海域油气田“外油内气”环带有序分布的新认识［J］.沉积学报,2010,28（5）：987-1005.］
［3］Zhang Gongcheng.Tectonic evolution of deepwater area of northern continental margin in South China Sea［J］.Acta Petrolei Sinica,2010,31(4)：529-534.［张功成.南海北部陆坡深水区盆地构造演化及其特征［J］.石油学报,2010,31（4）：529-534.］
［4］Ｚhang Gongcheng,Liu Zhen,Ｍi Lijun,et al.Sedimentary evolution of Peleogene Series in deep water area of Zhujiangkou and Qiongdongnan basin［J］.Acta Sedimentologica Sinica,2009,27(4):632-641.［张功成,刘震,米立军,等.珠江口盆地—琼东南盆地深水区古近系沉积演化［J］.沉积学报,2009,27（4）：632-641.］
［5］Zhang Gongcheng,Mi Lijun,Wu Jingfu,et al.Rises and their plunges:Favorable exploration direction for major fields in the deepwater area,Diongdongnan basin［J］.China Offshore Oil and Gas,2010,22(6):360-368.［张功成,米立军,吴景富,等.凸起及其倾没端——琼东南盆地深水区大中型油气田有利勘探方向［J］.中国海上油气,2010,22（6）：360-368.］
［6］Li Xuxuan,Liu Baomin,Zhao Junqing.Paleogene sequence configuration,depositional filling pattern and hydrocarbon-generation potential in Qiongdongnan basin［J］.China Offshore Oil and Gas,2007,19(4):217-239.［李绪宣,刘宝明,赵俊清.琼东南盆地古近纪层序结构、充填样式及生烃潜力［J］.中国海上油气,2007,19（4）：217-239.］
［7］Zhang Gongcheng,Mi Lijun,Wu Shiguo,et al.Deepwater area：The new prospecting targets of northern continental margin of South China Sea［J］.Acta Petrolei Sinica,2007,28(2):15-21.［张功成,米立军,吴时国,等.深水区——南海北部大陆边缘盆地油气勘探新领域［J］.石油学报,2007,28（2）：15-21.］
［8］Editorial Committee of Petroleum Geology of Continental Shelf
[JP] and Adjacent Sea Area Petroleum Geology of China.Petroleum Geology of China(vol.16)［M］.Beijing:Petroleum Industry Press,1990:1-682.［沿海大陆架及毗邻海域油气石油地质志编写组.中国石油地质志(第16卷)［M］.北京：石油工业出版社,1990:1-682.］
［9］Ｄai Jinxing,Ｈu Ｇuoyi,Ｎi Ｙunyan,et al.Ｎatural gas distribution feature in the east of Ｃhina［J］.Ｎatural Ｇas Ｇeosicence,2009,20(4):471-487.［戴金星,胡国艺,倪云燕,等.中国东部天然气分布特征［J］.天然气地球科学,2009,20（4）：471-487.］
［10］Ｌi Ｚengxue,Ｈe Ｙuping,Ｌiu Ｈaiyan,et al.Ｓedimentology characteristics and coal-forming models in Ｙacheng Ｆormation of Ｑiongdongnan basin［J］.Acta Petrolei Sinica,2010,31(4)：542-547.［李增学,何玉平,刘海燕,等.琼东南盆地崖城组煤的沉积学特征与聚煤模式［J］.石油学报,2010,31（4）：542-547.］
[JP]
［11］Ｌi Ｙing,Ｚhang Ｇongcheng,Ｌv Ｄawei,et al.Ｓedimentary feature and coal-forming environment in Ｙacheng Ｆormation of Ｑiongdongnan basin［J］.Ｃoal Ｇeology and Ｅxploration,2010,39(1):1-5.［李莹,张功成,吕大炜,等.琼东南盆地崖城组沉积特征及成煤环境［J］.煤田地质与勘探,2010,39（1）：1-5.］
［12］Ｌi Ｚengxue,Ｚhang Ｇongcheng,Ｗang Ｄongdong,et al.Identification and correlation of base-level cycles of coal-bearing strata in Paleogene System of China seas：Taking the case of Qiongdongnan basin as an example［J］.Ｇeoscience,2010,14(6):1178-1185.［李增学,张功成,王东东,等.海域区古近系含煤地层基准面旋回识别与对比:以琼东南盆地为例［J］.现代地质,2010,14（6）：1178-1185.］
［13］Ｍi Ｌijun,Ｗang Ｄongdong,Ｌi Ｚengxue,et al.Ｈigh-resolution stratigraphyic framework and coal-forming feature in Ｙacheng Ｆormation of Ｑiongdongnan basin［J］.Acta Petrolei Sinica,2010,31(4)：534-541.［米立军,王东东,李增学,等.琼东南盆地崖城组高分辨率层序地层格架与煤层形成特征［J］.石油学报,2010,31（4）：534-541.］
［14］Zhang Ｇongcheng.Geological features and newexploration
[JP]realms of offshore gas in China［J］.Ｃhina Ｏffshore Ｏil and Ｇas,2005,17(5):289-296.［张功成.中国近海天然气地质特征与勘探新领域［J］.中国海上油气,2005,17(5):289-296.］
［15］Ｍi Ｌijun,Ｚhang Ｇongcheng,Ｆu Ｎing,et al.An analysis of hydrocarbon source and accumulation in Panyu low uplift and north slope of Baiyun sag,Pearl River Mouth basin［J］.Ｃhina Ｏffshore Ｏil and Ｇas,2006,18(3):161-168.［米立军,张功成,傅宁,等.珠江口盆地白云凹陷北坡—番禺低隆起油气来源及成藏分析［J］.中国海上油气,2006,18（3）：161-168.］
［16］Ｆu Ｎing,Ｄeng Ｙunhua,Ｚhang Ｇongcheng,et al.Ｔransitional source rock and its contribution to hydrocarbon accumulation in superimpose rift-subsidence basin of northern Ｓouth Ｃhina Ｓea:Ｔaking Ｂaiyun sag of Ｚhu Ⅱ depression as an example［J］.Acta Petrolei Sinica,2010,31(4)：559-565.［傅宁,邓运华,张功成,等.南海北部叠合断陷盆地海陆过渡相烃源岩及成藏贡献——以珠二坳陷白云凹陷为例［J］.石油学报,2010,31（4）：559-565.］
［17］Zhang Ｇongcheng,Ｌi Ｚengxue,Ｈe Ｙuping,et al.Ｃoal geochemistry of Ｑiongdongnan basin［J］.Ｎatural Ｇas Ｇeosicence,2010,21(5):693-699.［张功成,李增学,何玉平,等.琼东南盆地煤地球化学特征［J］.天然气地球科学,2010,21（5）：693-699.］
［18］Li Youchuan,Zhang Gongcheng,Fu Ning.A study on hydrocarbon generation characteristics in the deepwater region,the northern South China Sea［J］.China Offshore Oil and Gas,2010,22(6):375-381.［李友川,张功成,傅宁.南海北部深水区油气生成特性研究［J］.中国海上油气,2010,22（6）：375-381.］
［19］Li Youchuan,Deng Yunhua,Zhang Gongcheng,et al.Tertiary marine source rocks in the northern South China Sea［J］.Acta Petrolei Sinica,2011,32(2):217-225.［李友川,邓运华,张功成,等.南海北部第三系海相烃源岩［J］.石油学报,2011,32（2）：219-225.］
［20］Wang Huan,Wang Qi,Zhang Gongcheng,et al.Comprehensive evaluation on mudstone caprock in the second member of Lingshui Formation in Qiongdongnan basin［J］.Natural Gas Geoscience,2011,22(5):770-777.［王欢,王琪,张功成,等.琼东南盆地陵水组二段泥岩盖层综合评价［J］.天然气地球科学,2011,22(5):770-777.］
［21］Mi Lijun,Yuan Yusong,Zhang Gongcheng,et al.Characteristics and genesis of geothermal field in deep water area of the northern South China Sea［J］.Acta Petrolei Sinica,2009,30(1):27-33.［米立军,袁玉松,张功成,等.南海北部深水区地热特征及其成因［J］.石油学报,2009,30（1）：27-32.］
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