- 责任者：Peng Yongmin (Research Institute of Petroleum Exploration and Production ; Beijing 100083 ; China) ; Song Chuanchun
- 刊名：Geology in China
- 出版年：2011
- 卷期：38(5)
- 关键词：浊积岩 ; turbidite ; 油气勘探 ; petroleum exploration ; 济阳坳陷 ; Jiyang Depression
- 页码：p.1289-1297
- 图表：6 illus., 1 table, 28 refs.
- 分类号：1003
- 出版序号：659
- issnNo：ISSN1000-3657
- isbnNo：CN11-1167/P
Based on seismic, well-logging and core data, the authors recognized the deep-water turbidity fans and slide turbidity fans developed in the lower 3rd Member of Shahejie Formation from the well block Che 15 in Chezhen sag, Jiyang depression. Well Chegu 25 is characterized by the slide turbidity fans with supplied or rooted channels, where the inner fan and its channels are especially developed, and are composed of debris-flow and a few turbidity-flow boulder-, cobble-and pebble-conglomerates with thickness of 10 to 20 m and gravel sandstones bedded with thin-layer dark grey or grey mudstones; the conglomerates of falling-boulder 1.06 m in size reflect steep slope topography. On the seismic profiles, the fans assume wedge form, where the inner-fan is weakly reflected, and the middle-and outer-fans are of divergently and subparallelly continuous seismic reflection configuration. The recognition and confirmation of boundaries of the turbidity fans is of great significance for hydrocarbon prospecting of the subtle traps.