琼东南陆坡深水水道主控因素及勘探应用
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摘要
结合全球海平面变化、气候变化、物源供给特征和地形条件,深入地分析和研究了发育在琼东南盆地陆坡区上新世和更新世地层中水道的形成主控因素及其在深水油气勘探中的应用价值和前景。提出琼东南陆坡上新世水道的主要因素是物源供给,包括来自红河和海南岛的物源,构造活动是关键诱发因素,上新世早期莺歌海盆地发育的大规模滑塌体与该水道的形成关系密切;给出更新世水道形成模式,其形成与第四纪冰期海平面的大幅度下降有关,地震活动诱发了中南半岛的小型山脉河流复苏,并对南海西部陆坡直接供给形成了该期水道。深水水道对于全球海平面变化、陆坡区物源供给情况和陆坡层序界面具有指示作用,并可作为良好的深水油气勘探目标,具有重要的深水油气勘探意义。
We studied controlling factors and significance of channels developed in Pliocene and Pleistocene of Qiongdongnan slope area based on the global sea level fluctuation,climate change,sediment supply and seafloor topography.The controlling factors of Pliocene channel are mainly sediment supply,including sediments from Red River and Hainan Island,the tectonics is the key induced factor,and the formation of this channel has close relation with the large-scale slump developed in Yinggehai basin in early Pliocene period.We worked out the formation model of the Pleistonce channel,and found that the large-scale sea level drop during the last glacial maximum was the controlling factor of this channel,and the tectonics induced the minor mountain rivers in the mid-south peninsula that fed the west South China Sea slope directly,resulting in the formation of this channel.The development of deepwater channel had instructions to the global sea level fluctuation,sediment supply and sequence stratigraphy interpretation of the slope area.The deepwater channel could be a good reservoir in the deepwater area and thus of great significance to the deepwater exploration.
We studied controlling factors and significance of channels developed in Pliocene and Pleistocene of Qiongdongnan slope area based on the global sea level fluctuation,climate change,sediment supply and seafloor topography.The controlling factors of Pliocene channel are mainly sediment supply,including sediments from Red River and Hainan Island,the tectonics is the key induced factor,and the formation of this channel has close relation with the large-scale slump developed in Yinggehai basin in early Pliocene period.We worked out the formation model of the Pleistonce channel,and found that the large-scale sea level drop during the last glacial maximum was the controlling factor of this channel,and the tectonics induced the minor mountain rivers in the mid-south peninsula that fed the west South China Sea slope directly,resulting in the formation of this channel.The development of deepwater channel had instructions to the global sea level fluctuation,sediment supply and sequence stratigraphy interpretation of the slope area.The deepwater channel could be a good reservoir in the deepwater area and thus of great significance to the deepwater exploration.
引文
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[17]Yuan S Q,Lv F L,Wu S G,et al.Seismic stratigraphy of the Qiongdongnan deep sea channel,Northwestern South China Sea[J].Chinese Journal of Oceanology and Limnology,2009,54(2):250-259.
[18]Yuan S Q,Wu S G,Thomas L,et al.Fine-grained Pleisto-cene deepwater turbidite channel systemonthe slope of Qion-gdongnan Basin,northern South China Sea[J].Marine and Petroleum Geology,2009,26:1441-1451.
[19]Wang P X.Response of western Pacific marginal seas to gla-cial cycles:paleoceanographic and sedimentological features[J].Marine Geology,1999,156(1-4):5-39.
[20]Schimanski A,Stattegger K.Deglacial and Holocene evolu-tion of the Vietnam shelf:startigraphy,sediments and sea-level change[J].Marine Geology,2005,214:365-387.
[21]郭令智,钟志洪,王良书,等.莺歌海盆地周边区域构造演化[J].高校地质学报,2001,7(1):1-12.[GUO Lingzhi,ZHONG Zhihong,WANG Liangshu,et al.Regional tectonic evolution around Yinggehai Basin of South China Sea[J].Ge-ological Journal of China Universities,2001,7(1):1-12.]
[2]Kolla V,Posamentier H W,Wood LJ.Deep-water andfluvial sinuous channels-Characteristics,similarities and dissimilari-ties,and modes of formation[J].Marine and Petroleum Geol-ogy,2007,24:388-405.
[3]Wu S G,Wong HK,Luedmann T.Gravity driven sedimenta-tion on the northwest coninental slopein the South China Sea:result from high-resolution seismic data and piston cores[J].Chinese Journal of Oceanology and Limnology,1999,17(2):155-169.
[4]Mayall M,Jones Ed,Casey M.Turbidite channel reservoirs-key elements in facies prediction and effective development[J].Marine and Petroleum Geology,2006,23(8):821-841.
[5]Deptuck ME,Sylvester Z,Pirmez C,et al.Migration-aggra-dation history and3D seismic geomorphology of submarine channels in the Pleistocene Benin-major Canyon,western Niger Delta slope[J].Marine and Petroleum Geology,2007,24(6-9):406-433.
[6]Schwab A M,Cronin B T,Ferreira H.Seismic expression of channel outcrops:Offset stacked versus amalgamated channel systems[J].Marine and Petroleum Geology,2007,24(6-9):504-514.
[7]Abreu V,Sullivan M,Pirmez C,et al.Lateral accretion pack-ages(LAPs):an important reservoir element in deep water sinuous channels[J].Marine and Petroleum Geology,2003,20(6-8):631-648.
[8]Wynn R B,Cronin B T,Peakall J.Sinuous deep-water chan-nels:Genesis,geometry and architecture[J].Marine and Pe-troleum Geology,2007,24(6-9):341-387.
[9]Xie X N,Müller R D,Li S T,et al.Origin of anomalous sub-sidence along the Northern South China Sea margin andits re-lationship to dynamic topography[J].Marine and Petroleum Geology,2006,23(7):745-765.
[10]吴时国,袁圣强.世界深水油气勘探进展与我国南海深水油气前景[J].天然气地球科学,2005,16(6):693-699.[WU Shiguo,YUAN Shengqiang.Advance of exploration and pe-troleumgeological features of deepwater hydrocarbon in the world[J].Natural Gas Geoscience,2005,16(6):693-699.]
[11]林畅松,刘景彦,蔡世祥,等.莺-琼盆地大型下切谷和海底重力流体系的沉积构成和发育背景[J].科学通报,2001,46(1):69-72.[LI N Changsong,LI U Jingyan,CAI Shixiang,et al.The large scale incision valley,seafloor gravity flow systemand its develop setting in Yinggehai and Qiongdong-nan Basin[J].Chinese Science Bulletin,2001,46(1):69-72.]
[12]陶维祥,何仕斌,赵志刚,等.琼东南盆地深水区储层分布规律[J].石油实验地质,2006,28(6):554-559.[TAO Wei xiang,HE Shibin,ZHAO Zhigang,et al.Reservoir distribu-tionin deepwater area of the Qiongdongnan Basin[J].Petro-leum Geology&Experiment,2006,28(6):554-559.]
[13]朱伟林.南海北部大陆边缘盆地天然气地质[M].北京:石油工业出版社,2007:8-52.[ZHU Weilin.The Gas Geology of Northern Margin of South China Sea[M].Beijing:Petroleum Industry Press,2007:8-52.]
[14]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.[ZHANG Gongcheng,MI Lijun,WUShiguo,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.]
[15]何仕斌,张功成,米立军,等.南海北部大陆边缘盆地深水区储层类型及沉积演化[J].石油学报,2007,28(5):51-56.[HE Shibin,ZHANG Gongcheng,MI Lijun,et al.Reservoir type and sedimentary evolution in the continental margin deepwa-ter area of the northern South China Sea[J].Acta Petrolei Sinica,2007,28(5):51-56.]
[16]马玉波,吴时国,袁圣强,等.南海北部陆缘盆地与坎坡斯盆地深水油气地质条件的对比[J].海洋地质与第四纪地质,2008,28(4):101-110.[MA Yubo,WU Shiguo,YUAN Shengqiang,et al.Comparison research of deep water hydro-carbon geologic conditions between shelf margin basin of north SCS and Campos basin[J].Marine Geology and Qua-ternary Geology,2008,28(4):101-110.]
[17]Yuan S Q,Lv F L,Wu S G,et al.Seismic stratigraphy of the Qiongdongnan deep sea channel,Northwestern South China Sea[J].Chinese Journal of Oceanology and Limnology,2009,54(2):250-259.
[18]Yuan S Q,Wu S G,Thomas L,et al.Fine-grained Pleisto-cene deepwater turbidite channel systemonthe slope of Qion-gdongnan Basin,northern South China Sea[J].Marine and Petroleum Geology,2009,26:1441-1451.
[19]Wang P X.Response of western Pacific marginal seas to gla-cial cycles:paleoceanographic and sedimentological features[J].Marine Geology,1999,156(1-4):5-39.
[20]Schimanski A,Stattegger K.Deglacial and Holocene evolu-tion of the Vietnam shelf:startigraphy,sediments and sea-level change[J].Marine Geology,2005,214:365-387.
[21]郭令智,钟志洪,王良书,等.莺歌海盆地周边区域构造演化[J].高校地质学报,2001,7(1):1-12.[GUO Lingzhi,ZHONG Zhihong,WANG Liangshu,et al.Regional tectonic evolution around Yinggehai Basin of South China Sea[J].Ge-ological Journal of China Universities,2001,7(1):1-12.]
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