The braided sand body is the main reservoir in Penglaizhen Formation of Western Sichuan depression. The accurate and rapid identification of river sand is the key to raise the percentage of drill success and reduce the investment risk. Nevertheless, as a single sand unit is small in thickness and volume and the lateral variation is fast, it is difficult to identify this sand body with the traditional method. In view of this situation, this paper has analyzed the sedimentary features, set up a geophysical response model, and used the advanced 3-D visualization method to identify the river sand body. Practice shows that this method is fairly effective and deserves wide popularization in vast continental strata areas of China.
吴朝容, 段文燊, 石磊, 李正文. 川西坳陷蓬莱镇组河道砂体识别技术[J]. 物探与化探, 2003, 27(4): 299-301,304.
WU Chao-rong, DUAN Wen-shen, SHI Lei, LI Zheng-wen . THE TECHNOLOGY FOR IDENTIFYING THE RIVER SAND BODY IN PENGLAIZHEN FORMATION OF WESTERN SICHUAN DEPRESSION. Geophysical and Geochemical Exploration, 2003, 27(4): 299-301,304.
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