新疆石油地质 ›› 2005, Vol. 26 ›› Issue (4): 370-372.

• 油气勘探 • 上一篇    下一篇

柴达木盆地七个泉地区下干柴沟组体系域和沉积相

李军1, 吴因业2, 崔化娟2, 刘忠2, 江波1, 吴卫安2, 郭彬程2   

  1. 1.中国石油 青海油田分公司,甘肃 敦煌736202;
    2.中国石油 石油勘探开发科学研究院,北京 100083
  • 收稿日期:2005-03-22 出版日期:2005-08-01 发布日期:2020-11-23
  • 作者简介:李军(1967-),女,青海冷湖人,工程师,油藏描述,(Tel)0937-8933415.

System Tract and Depositional F acies of Lower Ganchaigou Formation in Qigequan Area,Qaidam Basin

LI Jun1, WU Yin-ye2, CUI Hua-juan2, LIU Zhong2, JIANG Bo1, WU Wei-an2, GUO Bin-cheng2   

  1. 1. Qinghai Oifield Company, PetroChina, Dunhuang, Gansu 736202, China;
    2. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China
  • Received:2005-03-22 Online:2005-08-01 Published:2020-11-23

摘要: 通过对七个泉地区地质录井和测井曲线资料分析,在下干柴沟组下段识别出2个沉积体系域。体系域主要为湖侵体系域和湖退体系域,其中储集体类型较为丰富,主要为扇三角洲砂体和深湖-伴深湖浊积砂体。将测井层序分析结果和地震储集层预测技术相结合,以体系域进行地震属性分析和沉积相编图,预测在七个泉地区东南部的三角洲前缘和北部的湖底扇砂体能够形成岩性油气藏。

关键词: 柴达木盆地, 七个泉地区, 古近系, 体系域, 沉积相, 砂体, 油气勘探

Abstract: Transgressive system tract and regressive system tract in lower member of Lower Ganchaihou formation are recognized from the analysis of geological logging and well logs in Qigequan area. The reservoir rock type is dominated by fan-delta sand body and deep-hemideep lake turbidite sand body. The log sequence analysis is integrated with seismic reservoir prediction technique. The system tract is applied to the analysis of seismic atribute and the map compilation of sedimentary facies. It is predicted that lithologic oil- gas reservoir may be shaped in the delta front of the southeastern Qigequan area and the sublacustrine fan's sand body of the northern Qigequan area.

Key words: Qaidam basin, Qigequan area, Paleogene, system tract, sedimentary facies, sand body, hydrocarbon prospecting

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