地球物理学进展 ›› 2017, Vol. 32 ›› Issue (5): 2035-2043.doi: 10.6038/pg20170524

• 应用地球物理学Ⅰ • 上一篇    下一篇

下生上储式油气富集程度的定量研究方法及其应用——以廊固凹陷大柳泉构造带沙三中亚段为例

刘滨莹1, 姜海燕2, 付广3, 刘哲3, 连晓亮1, 万琰4   

  1. 1. 东方地球物理公司研究院地质研究中心吉林中心, 涿州 072751;
    2. 大庆油田第六采油厂, 大庆 163318;
    3. 东北石油大学地球科学学院, 大庆 163318;
    4. 大庆录井二公司, 松原 138000
  • 收稿日期:2017-03-03 修回日期:2017-08-01 出版日期:2017-10-20 发布日期:2017-10-20
  • 作者简介:刘滨莹,女,1992年生,硕士研究生,研究方向油气田勘探地质工程.(E-mail:1774214329@qq.com)
  • 基金资助:

    国家科技重大专项课题“中国大气田盖层综合定量评价方法及应用”(2011ZX05007-002)和国家自然科学基金项目“油源断裂转换带优势输导油气条件研究”(41372153)联合资助.

Quantitative research method and application to the enrichment degree of the down generated up stored hydrocarbon accumulation-case of Esz3 in the Daliuquan structure zone of the Langgu sag

LIU Bin-ying1, JIANG Hai-yan2, FU Guang3, LIU Ze3, LIAN Xiao-liang1, WAN Yan4   

  1. 1. BGP Geological Reasearch Center JILIN Reasearch Center, CNPC, Zhuozhou 072751, China;
    2. The sixth oil production plant of Daqing oilfield, Petro China, Heilongjiang Daqing 163318, China;
    3. College of Earth Sciences, Northeast Petroleum University, Heilongjiang Daqing 163318, China;
    4. The Second Logging of Daqing, Jilin Songyuan 138000, China
  • Received:2017-03-03 Revised:2017-08-01 Online:2017-10-20 Published:2017-10-20

摘要:

为了研究大柳泉构造带沙三中亚段下生上储式油气成藏规律,在源、储、输导、圈闭等成藏要素的发育及分布特征研究的基础上,对其成藏贡献进行了研究.研究表明:油气运移条件与油气保存条件是控制大柳泉构造带油气富集程度的两个最主要的影响因素.油气运移条件包括垂向运移条件,侧向分流条件和侧向运移条件,油气保存条件包括盖层垂向封闭性和控圈断层侧向封闭性.根据钻井资料提出一种新的油气运移、保存条件评价方法,即油气运移指数与油气保存指数.通过分析对比已钻井油气运移、保存指数与油气富集各影响因素的定量关系,建立出预测未钻井圈闭油气富集程度的评价公式.运用该方法对大柳泉构造带沙三中亚段各圈闭油气富集程度进行预测,其结果与当前钻探成果有很高的符合率.

Abstract:

In order to research the hydrocarbon accumulation regularity and predict the favorable zones of the mid-sha3 memberin the Daliuquan structure belt, the contribution of the hydrocarbon accumulation elements such as the source, reservoir and conducting condition trap el. is researched on the basis of their development and distribution characteristics.It is recovered that migration and preservation conditions are two vital factors for hydrocarbon accumulation degree of the study area. The migration condition of hydrocarbon is controlled by the advantage migration pathway and the sand ratio reservoir which can be a quantitatively representby the hydrocarbon migration index. While the preservation conditions of hydrocarbon is controlled by the vertical sealing ability of caprock and the lateral sealing ability of fault which can be a quantitatively representby the hydrocarbon preservation index. According to drilling data in this area, a new evaluation method migration and preservation condition is put forward, namely hydrocarbon migration index and hydrocarbon preservation index. In accordance with the comparison and analysis of quantitative relation between the hydrocarbon migration index, preservation index and each influencing factors of hydrocarbon accumulation for the drilled wells, the evaluation formula for predicting hydrocarbon enrichment degree in the undrilled area has been established. The predicted result using this method for hydrocarbon enrichment of each trap in the mid-sha3 member of Daliuquan area has a high coincidence rate with the current drilling results.

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