Taking the Um7 meandering river complex sandstone reservoir of Bohai Bay C oilfield as an example, the interlayer type is defined according to the interlayer lithology and sedimentary genesis, and the identification mode of different types of interlayer is established, and the interlayer comparison of the whole area is carried out by using this mode. The results show that the interlayer can be further defined as the stable distributed interlayer and the randomly distributed interlayer according to the morphology of the interlayer. The distribution characteristics of the two types of interlayers are characterized by the well-to-well comparison method and the data analysis method, and the three-dimensional characterization is carried out. The results more closely reflect the spatial distribution of the interlayer, but also are closer to the underground real situation.
References
[1]
Qiu, Y. (1996) The Methodology of Petroleum Development Geology (I). Petroleum Exploration and Development, 23, 43-47.
[2]
Zhang, H. (1999) Petroleum Geology. Petroleum Industry Publishing House, Beijing.
[3]
Zhao, H., Chen, Y., Tang. B., Lin, H., Liu, Y. and Zhang, Y. (2011) Heterogeneity of Chang 2 Reservoir in Dingbian Area, Ordos Basin. Lithologic Reservoirs, 23, 70-74.
[4]
Mao, Z. (2003) Controlling Effects of Poor Permeable Layers upon Accumulation and Distribution of Hydrocarbon in Inhomogeneous Sandstone Reservoir. Earth Science, 28, 196-200.
[5]
Gao, C., Sun, B., Sun, J., Cao, C., Wang, Y. and Yan, X. (2014) Characteristics of Low Permeability Reservoir of Chang 2 Reservoir in Xirengou Area, Ordos Basin. Lithologic Reservoirs, 26, 80-85.
[6]
Du, Q., Chen, Y. and Hou, J. (2006) Control of Interlayer on the Distribution of Remaining Oil in Thick Reservoirs of Shengtuo Oilfield. Journal of Oil and Gas Technology, 28, 111-114.
[7]
Chen, C. and Sun, Y. (2003) The Distribution Patterns of the Interlayers within Thick Pays and Their Impact on Recovery Efficiency. Petroleum Geology & Oilfield Development in Daqing, 22, 24-27.
[8]
Li, H., Li, X., Zhao, L. and Li, J. (2009) Developing Strategy of Interlayer Gas Reservoir with Horizontal Well. Oil Drilling & Production Technology, 3, 96-99.
[9]
Cui, J., Li, H., Feng, J., Liu, C. and Ju, Y. (2013) Barrier-Beds and Inter-Beds Characteristics and Their Effects on Remaining Oil Distribution in Braided River Reservoirs: A Case Study of the Ng IV Oil Unit in Shallow North Gaoshangpu Oilfield. Special Oil & Gas Reservoirs, 20, 26-30.
[10]
Dang, S., Yan, J., Feng, X., Qin, R. and Wang, W. (2015) Interlayer Research Application in Horizontal Well Development of Thick Bottom Water Reservoir—A Case of Massive sand in Caofeidian 11-6 Oilfield. Petroleum Geology and Recovery Efficiency, 5, 63-67.
[11]
Wang, W., Guo, J., Li, B. and Zhu, M. (2016) Study on Conglomerate Interlayer of Guantao Formation and Subdivision Development Practices of Horizontal Wells. Reservoir Evaluation and Development, 6, 5-8.
[12]
Yan, Y. and Duan, T. (2008) Identification and Inter-Well Prediction of Interbeds in Thick Oil Layer. Lithologic Reservoirs, 20, 127-131.
[13]
Shu, Q. (2006) Interlayer Characterization of Fluvial Reservoir in Guantao Formation of Gudao Oilfield. Acta Petrolei Sinica, 7, 100-103.
[14]
Lin, B., Dai, J., Ji, G. and Feng, J. (2008) Stochastic Modeling Study on Interlayers in 9-1 Layer, Segment 2 of Shahejie Formation, Tuo 7 Fault Block, Shengtuo Oilfield. Journal of Southwest Petroleum University (Science & Technology Edition), 30, 11-14.
[15]
Liu, C., Zhang, Y. and Shan, J. (2006) Genetic Mechanism and Distribution Features of Barriers and Baffles in Sandstone Reservoir. Natural Gas Industry, 26, 15-17.
[16]
Wang, J., Xu, S. and Zhong, W. (2010) Origin and Distribution of the Interlayer in Fluvial Reservoir. Geological Science and Technology Information, 29, 84-88.
[17]
Wang, Y. (2011) Accurate Characterization of Fluvial Facies Interbed and Its Control on Remaining Oil. Journal of Oil and Gas Technology, 33, 43-47.
[18]
Zhang, S., Zhang, C., Yin, H., et al. (2000) Distribution of the Interbeds in the 2nd Oil Formation of the He-3 Member of the Shuanghe Oil Field, Henan. Sedimentary Geology and Tethyan Geology, 20, 71-78.
[19]
Zhang, G., Hou, J. and Wu, X. (2010) Modeling of Inner Interlayer Prediction in Thick Oil Layer—With Velasquez Oilfield as an Example. Science & Technology Review, 28, 56-59.
[20]
Zhao, H. (1985) Continuity of Intercalated Beds in Channel Sandstones. Petroleum Geology & Oilfield Development in Daqing, 4, 1-11.
[21]
Wu, S., Yue, D., Liu, J., Shu, Q., Fan, E. and Li, Y. (2008) Research on Hierarchical Modeling of Underground Ancient Channel Reservoir Structure. Science in China (Series D: Earth Sciences), 38, 111-121.
[22]
Zhang, C., Zhou, H., Li, L., Shi, D., Liu, Z. and Hou, G. (2001) Modern Sediment Research in the Juzhang River. Bulletin of Mineralogy Petrology and Geochemistry, 20, 176-182.
[23]
Lin, C., Hou, L. and Dong, C. (1997) Geostatistics Applied to the Identification of Interbeds, with Sha-3 Member of Western Liaohe Depression Taken as an Example. Experimental Petroleum Geology, 19, 245-251.
[24]
Feng, W. (2009) Quantitative Recognition of Interbed Types in Fluvial Reservoirs. Petroleum Geology and Recovery Efficiency, 16, 40-43.
[25]
Si, L. (2008) Geological Modeling for Point Bar of Meandering River and Its Application in Horizontal Well. Lithologic Reservoirs, 20, 104-108.
