西南石油大学学报(自然科学版) ›› 2007, Vol. 29 ›› Issue (1): 10-11.DOI: 10.3863/j.issn.1000-2634.2007.01.003

• 地质勘探 • 上一篇    下一篇

罗家寨西南地区飞仙关早期沉积古地貌研究

曾云贤 刘微 杨雨
  

  1. 中国石油西南油气田分公司勘探开发研究院,四川 成都 610051
  • 收稿日期:2006-10-30 修回日期:1900-01-01 出版日期:2007-04-20 发布日期:2007-04-20
  • 通讯作者: 曾云贤

RESEARCH ON SEDIMENTARY PALAEOTOPOGRAPHY OF EARLY FEIXIANGUAN PERIOD AT SOUTHWEST LUOJIAZHAI AREA

ZENG Yun-xian LIU Wei YANG Yu   

  1. Research Institute of Exploration & Development Southwest Oil and Gasfield Company, Chengdu Sichuan 610051,China
  • Received:2006-10-30 Revised:1900-01-01 Online:2007-04-20 Published:2007-04-20
  • Contact: ZENG Yun-xian

摘要: 运用测井曲线伽玛值来研究罗家寨西南地区的沉积古地貌,通过上百口井测井曲线对比,发现飞仙关组底部的电性变化主要集中在50m范围内,以飞仙关组底界50m段的伽玛加权平均值来研究飞仙关早期沉积古地貌,指出20~30API的伽玛值区域可能是鲕粒最适宜生成的地区,且同时是后期鲕粒岩云化及鲕滩储层发育的有利区域,依据处于有利相带、较高古地貌、邻近井的云化及储层发育较好的原则,提出QL25—PX1区块和DT7—DT5区块两个勘探有利区块。为该区勘探提供了参考资料。

关键词: 鲕滩储层, 古地貌, 飞仙关, 罗家寨

Abstract: Research on sedimentary palaeotopography at southwest Luojiazhai area is operated with logging Gama data. It is indicated, on the basis of the comparison with logging curve of almost 100 wells, that the electric property change at lower Feixianguan formation is concentrated at the 50m range from the bottom. Research on sedimentary palaeotopography of early Feixianguan period is conducted with Gama average data of 50m section from bottom of the formation, it is indicated that Gama data range(20~30API)would be favorable for oolitic development, and meanwhile it is also the favorable areas of late oolitic dolomite and oolitic reservoir development, according to favorable facies, high palaeotopography, dolomization at adjacent wells and good quality of reservoir development, the two favorable exploration blocks, QL25PX1 area and DT 7DT 5 are figured out.

Key words: oolitic reservoir, palaeotopography, Feixianguan, southwest Luojiazhai area

中图分类号: