ISSN 1673-8217 CN 41-1388/TE
主管:中国石油化工集团有限公司 主办:中国石油化工股份有限公司河南油田分公司
陈林, 张曰静, 商丰凯, 杨东根, 王林, 于腾飞. 2019: 不同物源体系沉积结合部砂体展布范围精细识别——以车排子凸起新近系沙湾组一段为例. 石油地质与工程, 33(02): 6-10.
引用本文: 陈林, 张曰静, 商丰凯, 杨东根, 王林, 于腾飞. 2019: 不同物源体系沉积结合部砂体展布范围精细识别——以车排子凸起新近系沙湾组一段为例. 石油地质与工程, 33(02): 6-10.
CHEN Lin, ZHANG Yuejing, SHANG Fengkai, YANG Donggen, WANG Lin, YU Tengfei. 2019: Fine identification of sedimentary boundary of different provenance systems——Taking Neogene Shawan formation in Chepaizi uplift as an example. Petroleum Geology and Engineering, 33(02): 6-10.
Citation: CHEN Lin, ZHANG Yuejing, SHANG Fengkai, YANG Donggen, WANG Lin, YU Tengfei. 2019: Fine identification of sedimentary boundary of different provenance systems——Taking Neogene Shawan formation in Chepaizi uplift as an example. Petroleum Geology and Engineering, 33(02): 6-10.

不同物源体系沉积结合部砂体展布范围精细识别——以车排子凸起新近系沙湾组一段为例

Fine identification of sedimentary boundary of different provenance systems——Taking Neogene Shawan formation in Chepaizi uplift as an example

  • 摘要: 车排子凸起东翼沙湾组1段不同物源体系在岩性、沉积组构、测井及地震反射特征等方面均存在典型差异:南物源体系主要发育辫状河三角洲,岩性以长石岩屑砂岩为主,为长距离搬运的牵引流沉积,电性曲线具有典型的砂岩响应特征,地震波呈强反射特征;北物源体系主要发育近物源沉积的扇三角洲,岩性以岩屑长石砂岩为主,为典型的重力流沉积,电性曲线的砂岩响应特征不明显,地震波呈弱–空白反射特征。进而对南、北物源体系开展了有效识别,落实了不同物源体系在沉积结合部的波及范围;对双物源体系沉积结合部的岩性类圈闭开展了精细刻画,实现了对该区的精细挖潜,取得了较好的勘探效果。

     

    Abstract: As for different provenance systems of Neogene Shawan formation in eastern Chepaizi uplift, there are typical differences in lithology, sedimentary fabric, logging and seismic reflection characteristics. The south provenance system mainly develops braided river deltas, and the lithology is dominated by feldspathic lithic sandstone, which is the tractive current deposition over a long distance. The electrical curve has typical sandstone response characteristics, and the seismic waves show strong reflection characteristics. In the north provenance system, fan deltas near provenance deposits are mainly developed, the lithology is dominated by lithic arkose sandstone, which is a typical gravity flow deposition. The sandstone response characteristics of electrical curves are not obvious, and seismic waves are weak-blank reflection. Then, the effective identification of the south and north provenance systems was carried out, and the affected range of different provenance systems in the sedimentary junction was implemented. The lithological traps at the sedimentary junction of the two provenance systems are described in detail, and the fine identification of sedimentary boundary of different provenance systems is realized, which obtained good exploration results.

     

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