Problems and countermeasures in seismic interpretation of beach bar sandstone reservoirs
Zhang Junhua1, Liu Peijin1, Zhu Bohua1, Liu Xiantai2, Yang Yong2, Wang Jun2, Liu Lei2
1. School of Geosciences, China University of Petroleum (East China), Qingdao, Shandong 266580, China;
2. Shengli Geological Science Research Institute, SINOPEC, Dongying, Shandong 257015, China
Abstract：Beach bar sandstone reservoir belongs to a special class of low permeability and thin interbed reservoir. This kind of deeply buried reservoir shows low vertical resolution and fast lateral variation on seismic sections. So it is difficult to do fine interpretation with conventional methods. We analyze difficulties in seismic interpretation of beach bar sandstone reservoir, and put forward four countermeasures, i.e. HHT (Hilbert-Huang transform) extended frequency, three-parameter wavelet detection, energy half time attribute prediction, fusion display of ancient landform and seismic attributes. HHT extended frequency can extend the frequency of the targets and enhance weak signal energy of beach bar sandstone. The three-parameter wavelet can well describe the internal structure of beach bar sandstone. The energy half time attribute is the best seismic attribute to describe the entire beach bar sandstone reservoir. As a kind of attributes, the ancient landform information can be used in fusion display.
张军华, 刘培金, 朱博华, 刘显太, 杨勇, 王军, 刘磊. 滩坝砂储层地震解释存在的问题及对策[J]. 石油地球物理勘探, 2014, 49(1): 167-175.
Zhang Junhua, Liu Peijin, Zhu Bohua, Liu Xiantai, Yang Yong, Wang Jun, Liu Lei. Problems and countermeasures in seismic interpretation of beach bar sandstone reservoirs. OGP, 2014, 49(1): 167-175.
