Delta subfacies division based on variation in high frequency seismic sequence thickness:an example from the Block BZ1/2
Wang Guanmin1, Li Mingpeng2, Yin Xingyao1, Zhang Jian3, Zhang Guangzhi1, Li Yuan1
1. School of Geosciences, China University of Petroleum(East China), Qingdao, Shandong 266580, China;
2. Langfang Branch, Research Institute of Petroleum Exploration & Development, PetroChina, Langfang, Hebei 065007, China;
3. Oil Production Plant No. 8, Daqing Oilfield Company Ltd., PetroChina, Daqing, Heilongjiang 163514, China
Abstract：In a scarcely drilling area with poor seismic inversion effect, how to clearly divide delta subfacies and determine prograding direction of different times is the precondition for further identification of exploration targets. Based on delta deposition law, delta subfacies can be divided and each has its own thickness variation of high frequency seismic sequence. Delta plain subfacies is thin and relatively stable. Stratigraphic thickness of delta front subfacies increases obviously. Prodelta subfacies is the thickest area of delta. And in the front of the prodelta, the stratigraphic thickness of semi-deep lake subfacies reduces rapidly and then keeps stable.Based on this model,delta subfacies of all high frequency seismic sequences in the Formation lower Dong 2 have been divided in the Block BZ1/2. Applications show that the proposed model has achieved good results.
王冠民, 李明鹏, 印兴耀, 张健, 张广智, 李远. 基于高频地震层序厚度变化的三角洲亚相划分——以渤中1/2地区为例[J]. 石油地球物理勘探, 2015, 50(6): 1173-1178.
Wang Guanmin, Li Mingpeng, Yin Xingyao, Zhang Jian, Zhang Guangzhi, Li Yuan. Delta subfacies division based on variation in high frequency seismic sequence thickness:an example from the Block BZ1/2. OGP, 2015, 50(6): 1173-1178.
Guo Feng, Chen Shiyue, Hu Guangming et al. Seismic facies and sedimentary facies of lower cretaceous in northern Songliao basin. Petroleum Geology & Oilfield Development in Daqing, 2005, 24(6):20-23.
Ying Bingxiang, Wang Shangxu, Yang Guoquan et al. Seismic facies and sedimentary facies of the member 2 of Kongdian formation of Paleogene in Dongying and Huimin sags, Bohai bay basin. Journal of Palaeogeography, 2004, 6(1):49-56.
Sun Shuyan, Xie Gang, Jiang Lei et al. Method using multi-attributes to integrative identification of delta parfacies:case of Shuangfeng delta in Lingnan sag. OGP, 2009, 44(1):81-86.
Yao Wei, Wu Chonglong, Shi Yuanpeng et al. Sedimentary characteristics research on lower Cretaceous in Honghaoershute depression using seismic multi-attribute fusion. OGP, 2013, 48(4):634-642.
Huang Zhong, Zhu Hongtao, Zhou Xinhuai et al. High resolution well-seismic sequence and seismic sedimentology of lower Ed2 of Dongying formation in BZ3-8 block, west slope of Bozhong sag. Marine Geology & Quaternary Geology, 2012, 32(1):61-67.
Mo Wuling, Wu Chaodong, Zhang Shun. Seismic imaging of sedimentary facies of the upper Cretaceous Nenjiang formation in Qijia-Gulong sag of Songliao basin. Journal of Palaeogeography, 2010, 12(4):399-408.
Deng Chuanwei, Li Lihua, Jin Yinji et al. Application of seismic waveform classification in predicting sedimentary microfacies. GPP, 2008, 47(3):262-265.
Jiang Qingchun, Wang Hai, Li Dan et al. Application conditions of seismic waveform classification technique and its use in the study of sedimentary microfacies of Pubei area. Oil & Gas Geology, 2012, 33(1):135-140.
Ge Xin, Xu Fengming, Yu Xiaowei et al. Application of seismic reservoir prediction technique in sedimentary facies research. Journal of Oil and Gas Technology, 2008, 30(5):259-262.
Deng Hongwen, Wang Hongliang, Li Xiaomeng. Application of high-resolution sequence stratigraphic correlation to fluvial facies. Oil & Gas Geology, 1997, 18(2):90-95.
Xu Changgui, Yu Shui, Lin Changsong et al. Structural styles of the Paleogene lacustrine basin margin and their control on sedimentary sequences in Bohai sea area. Journal of Palaeogeography, 2008, 10(6):627-635.
Lin Changsong, Wang Qinghua, Xiao Jianxin et al. Sedimentary sequence compositon and filling response model in Cretaceous of Kuche depression. Science in China(Series D), 2004, 34(A01):74-82.
[17]
林自强, 肖桂英. 三角洲地震相的解释.石油地球物理勘探, 1981, 16(2):60-65.
Lin Ziqiang, Xiao Guiying. Interpretation of seismic facies delta. OGP, 1981, 16(2):60-65.
Wu Lei, Xu Huaimin, Ji Hancheng. Evolution of sedimentary system and analysis of sedimentary source in Paleogene of Bozhong sag, Bohai bay. Marine Geology and Quaternary Geology, 2006, 26(1):81-88.
Wang Guanmin, Pang Xiaojun, Zhang Xuefang et al. Activity of Shinan fault and its control on hydrocarbon accumulation in the Paleogene in Bozhong depression. Oil & Gas Geology, 2012, 33(6):860-864.
Lin Changsong, Zhang Yanmei, Li Sitian et al. Episodic rifting dynamic process and quantitative model of Mesozoic-Cenozoic faulted basins in Eastern China. Earth Science:Journal of China University of Geosciences, 2004, 29(5):583-588.
Qiu Guiqiang, Wang Jufeng, Li Congxian. Preliminary study on stratigraphy architecture of middle-Shasan Dongying delta and its significance to hydrocarbon exploration. Journal of Tongji University, 2001, 29(10):1195-1199.
Li Yang, Cai Jingong, Liu Jianmin. High-resolution sequence stratigraphy of Paleogene in Dongying depression. Acta Sedimentologica Sinica, 2002, 20(2):210-216.
Rao Mengyu, Zhong Jianhua, Wang Xibin et al. Sedimentary characteristics of creeping turbidite sandbody of the member 3 of Shahejie formation in easetern Dongying depression. Coal Geology & Exploration, 2004, 32(3):15-17.
Rao Mengyu, Zhong Jianhua, Guo Zeqing et al. Turbidite characteristics of delta front for the 3rd member of Shahejie formation in Niuzhuang sag, Jiyang depression. Geological Journal of China Universities, 2004, 10(4):624-632.
Zhou Lu, Guan Xu, Lei Dewen et al. Geological significance of imbricated progradation seismic reflection characteristics from member 1 of Qingshuihe formation of Cretaceous in Modong. OGP, 2013, 48(4):625-633.
