Sedimentary characteristics and genesis of lateral accretion packages in the Pliocene of Dongfang area of Yinggehai Basin
Zhuo Haiteng1, Wang Yingmin1, Xu Qiang2, Li Dong2, Wang Yongfeng3, Zhou Chuan4
1 College of Geosciences,China University of Petroleum(Beijing),Beijing 102249
2 CNOOC Research Institute,Beijing 100027
3 Sinopec Management Institute,Beijing 100012
4 PetroChina Dagang Oilfield Company,Cangzhou 061035,Hebei
Based on the interpretation of seismic profiles，slices and attributes，lateral accretion packages(LAPs) were found in Dongfang 1-1 area of the Yinggehai Basin in northern South China Sea. According to their sinuosity，LAPs can be categorized into high or low sinuous types，which are both characterized by a series of shingled reflections on seismic profiles. However，in the plan view，the high sinuous type is represented by a scrollbar pattern while the low sinuous type is ribbonlike.The LAPs are suggested to be formed by multiple stages of “cut-fill” as well as the subsequent lateral migration. The lower part of LAPs are consisted of coarsegrained reservoir resulting from the amalgamation of channel axis bottom deposits，which have good lateral connectivity and reservoir potential.However，it turns upwards into the combination of sandstones interbeded with mudstones，leading to a low lateral connectivity and quality.The discovery of the LAPs is significant to understand the nature of the deepwater gravityflow systems and also provides potential targets for the hydrocarbon exploration in the study area.
Corresponding Authors:
About the corresponding author Wang Yingmin,born in 1954,is a professor and Ph.D. supervisor in China University of Petroleum(Beijing).Now he is mainly engaged in sequence stratigraphy,sedimentology and marine geology.E-mail: wym3939@sina.vip.com.
About author: Zhuo Haiteng,born in 1986,is a Ph.D. candidate in College of Geosciences,China University of Petroleum(Beijing). Now he is mainly engaged in study of deep-water sedimentology and seismic interpretation of northern South China Sea.E-mail: zhuohaiteng@hotmail.com.
Cite this article:
Zhuo Haiteng,Wang Yingmin,Xu Qiang et al. Sedimentary characteristics and genesis of lateral accretion packages in the Pliocene of Dongfang area of Yinggehai Basin[J]. JOPC, 2013, 15(6): 787-794.
Zhuo Haiteng,Wang Yingmin,Xu Qiang et al. Sedimentary characteristics and genesis of lateral accretion packages in the Pliocene of Dongfang area of Yinggehai Basin[J]. JOPC, 2013, 15(6): 787-794.
龚再升,李思田,王善书,等.1997.南海北部大陆边缘盆地分析与油气聚集[M].北京:科学出版社. 郭令智,钟志洪,王良书,等.2001.莺歌海盆地周边区域构造演化[J].高校地质学报,7(1):1-12. 姜平,于兴河,黄月银,等.2012.储集层精细描述在东方1-1气田中的应用[J].地学前缘,19(2):87-94. 李胜利,于兴河,谢玉洪,等.2010.滨浅海泥流沟谷识别标志、类型及沉积模式: 以莺歌海盆地东方1-1气田为例[J].沉积学报,28(6):1076-1080. 林畅松,刘景彦,蔡世祥,等.2001.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,46(1):69-72. 吕明.1999.莺—琼盆地含气区储集层特征[J].天然气工业,19(1):20-24. 孙珍,钟志洪,周蒂.2007.莺歌海盆地构造演化与强烈沉降机制的分析和模拟[J].地球科学:中国地质大学学报,32(3):347-356. 王立峰,马光克,周家雄,等.2009.东方气田储集层非均质性描述[J].天然气工业,29(1):38-40. 谢玉洪,刘力辉,陈志宏.2010.中国南海地震沉积学研究及其在岩性预测中的应用[M].北京:石油工业出版社. Abreu V,Sullivan M,Pirmez C, et al.2003.Lateral accretion packages(LAPs): An important reservoir element in deep water sinuous channels[J].Marine and Petroleum Geology,20: 631-648. Arnott R W C.2007.Stratal architecture and origin of lateral accretion deposits(LADs)and conterminuous inner-bank levee deposits in a base-of-slope sinuous channel,lower Isaac Formation(Neoproterozoic),East-Central British Columbia,Canada[J].Marine and Petroleum Geology,24: 515-528. Clift P D,Sun Z.2006.The sedimentary and tectonic evolution of the Yinggehai-Song Hong basin and the southern Hainan margin,South China Sea: Implications for Tibetan uplift and monsoon intensification[J].Journal of Geophysical Research,111,B06405,doi: 10.1029/2005JB004048. Elliott T.2000.Depositional architecture of a sand-rich,channelized turbidite system: The upper carboniferous Ross Formation,Western Ireland[C]. In: Gulf Coast Section Society of Economic Paleontologists and Mineralogists Foundation 20th annual research conference: Deep-water reservoirs of the world: 342-373. Kolla V,Posamentier H W,Wood L J, et al.2007.Deep-water and fluvial sinuous channels: Characteristics,similarities and dissimilarities,and modes of formation[J].Marine and Petroleum Geology,24: 388-405. Mulder T,Syvitski J P M,Migeon S, et al.2003.Marine hyperpycnal flows: Initiation,behavior and related deposits:A review[J].Marine and Petroleum Geology,20: 861-882. Peakall J,McCaffrey B,Kneller B.2000.A process model for the evolution,morphology,and architecture of sinuous submarine channels[J].Journal of Sedimentary Research,70(3):434-448. Posamentier H W,Walker R G.2006.Facies Models Revisited[M].SEPM Special Publication NO.84: 397-520. Wang Z,Huang B.2008.Dongfang 1-1 gas field in the mud diaper belt of the Yinggehai Basin,South China Sea[J]. Marine and Petroleum Geology,25: 445-455. Wynn R B,Cronin B T,Peakall J.2007.Sinuous deep-water channels: Genesis,geometry and architecture[J]. Marine and Petroleum Geology,24: 341-387.
