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

发布时间：2018-04-13 07:29

本文选题：地震资料 + 油气成藏规律　；参考：《地球物理学进展》2017年05期

【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 study the law of oil and gas accumulation in the middle part of the third member of the Daliuquan structural belt, based on the study of the development and distribution characteristics of the reservoir forming elements, such as source, reservoir, transport, trap, etc, the contribution of the reservoir formation is studied.The results show that the oil and gas migration and preservation conditions are the two most important factors to control the oil and gas enrichment in the Daliuquan structural belt.Oil and gas migration conditions include vertical migration conditions, lateral distributary conditions and lateral migration conditions, and oil and gas preservation conditions include vertical sealing of caprocks and lateral sealing of faults in control circles.Based on the drilling data, a new evaluation method of oil and gas migration and preservation conditions is proposed, that is, oil and gas migration index and oil gas preservation index.By analyzing and comparing the quantitative relationship between oil and gas migration, preservation index and various factors affecting oil and gas enrichment, an evaluation formula for predicting the degree of oil and gas enrichment in undrilled traps is established.The method is used to predict the oil and gas enrichment degree of each trap in the middle part of Sha 3 in the Daliuquan structural belt. The results are in good agreement with the current drilling results.
【作者单位】：东方地球物理公司研究院地质研究中心吉林中心;大庆油田第六采油厂;东北石油大学地球科学学院;大庆录井二公司;
【基金】：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) 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
【分类号】：P618.13

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