Abstract：Since more discoveries in Tertiary are found out in Bohai Bay Basin,deep targets draw more attention in the hydrocarbon exploration. We propose in the paper a new approach to identify buried hills on gravity data in Area SH,in which 3D seismic surveys were conducted. Firstly,we build a geological model based on drilling,logging and seismic data. Then we discuss the relationship among velocity,density,and depth based on logging data. Finally we calculate gravity anomaly response of all the layers by gravity data forward modeling,and we obtain gravity anomaly of buried hills with the correlation between Bouguer gravity anomaly response and a specific layer. Based on the relation between model size and gravity response,we can determine gravity response variation with burial hill size and depth,which provides a reliable reference for seismic interpretation.
李婧, 崔永谦, 宋景明, 赵荔, 周赏, 梁婉如. 重力-地震联合建模正演技术在SH地区潜山勘探中的应用[J]. 石油地球物理勘探, 2016, 51(s1): 152-160.
Li Jing, Cui Yongqian, Song Jingming, Zhao Li, Zhou Shang, Liang Wanru. Gravity forward modeling with model built based on drilling and seismic data: an example of buried hill exploration in Area SH. OGP, 2016, 51(s1): 152-160.
Zhao Xianzheng,Wang Quan,Jin Fengming et al. Main controlling factors and exploration practice of subtle buried-hill hydrocarbon reservoir in Jizhong depression. Acta Petrolei Sinice,2012,33(S):71-79.
Wang Maoji,Cai Xin,Tu Chenglin. Development and prospect of gravity prospecting in China. Chinese Journal of Geophysics, 1997,40(S):292-298.
[4]
Wei Yan and Yang Zhanjun. The application of combined gravity and seismic data formation separation for revealing deep structure. Applied Geophysics, 2006, 3(4):255-259.
Chen Yuanyu,Tian Sisi,Liu Lixin et al. Study on the reservoir forming conditions and exploration achievements of Sun Hu buried-hill. Journal of Yangtze University,2013,10(16):30-32.
Yan Baoyi,Huang Yan,Cui Yongqian et al. Control of transfer zones on Neogene hydrocarbon accumulation in Raoyang sag. China Petroleum Exploration, 2008,13(2):17-21.
Yi Shiwei,Liu Jingwang,Wu Yingquan et al. Breakthrough and enlightenment for buried-hill exploration in Raoyang sag in recent years. China Petroleum Exploration, 2010, 15(6):1-9.
Hao Xiumin,Cui Yanli,Yang Haoling et al. Conditions and enrichment laws of oil and gas accumulation in Sunhu buried-hill. China Petroleum and Chemical Standard and Quality, 2013,33(19):139-140.
Tian Shifeng,Zha Ming,Wu Kongyou et al. Distribution features and enrichment regularity of buried hill reservoirs in Raoyang sag. Marine Geology & Quaternary Geology, 2009,29(4):143-150.
Zhao Xianzheng,Wang Quan,Jin Fengming et al. Secondary exploration method and its application for hydrocarbon enriched depressions in highly explored areas.China Petroleum Exploration,2012,17(6):1-9.
[11]
河北省地质矿产局.河北省北京市天津市区域地质志.北京:地质出版社,1991.
[12]
华北油田石油地质志编辑委员会.中国石油地质志:卷五.北京:石油工业出版社,1993.
Editorial Committee of Petroleum Geology of NorthChina Oilfield.Petroleum Geology of China(Volume 5).Petroleum Industrial Publishing House,Beijing, 1993.
[13]
贾承造.关于中国当前油气勘探的几个重要问题.石油学报,2012,33(增刊1):6-13.
Jia Chengzao.Several important issues about current oil and gas exploration in China. Acta Petrolei Sinica, 2012,33(S1):6-13.
[14]
朱志澄.构造地质学.北京:中国地质大学出版社,1999.
Zhu Zhicheng. Structural Geology. China University of Geosciences Press,Beijing, 1999.
Yang Minghui. Depositional framework and fault-block tilting in strong extensional stage of continental basin. Chinese Journal of Geology, 2004,39(2):178-190.
[17]
冯有良.断陷湖盆沟谷及构造坡折对砂体的控制作用.石油学报,2006,27(1):13-16.
Feng Youliang. Control of valley and tectonic slope-break zone on sand bodies in rift-subsidence basin. Acta Petrolei Sinica, 2006,27(1):13-16.
