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安天下. 地层圈闭油气成藏有效性评价方法—以渤海湾盆地济阳坳陷为例[J]. 科学技术与工程, 2020, 20(10): 3919-3926.
AN Tian-xia.An Effective Evaluation Method for Stratigraphic Trap Hydrocarbon Accumulation: A Case Study of Jiyang Depression, Bohai Bay Basin[J].Science Technology and Engineering,2020,20(10):3919-3926.
地层圈闭油气成藏有效性评价方法—以渤海湾盆地济阳坳陷为例
An Effective Evaluation Method for Stratigraphic Trap Hydrocarbon Accumulation: A Case Study of Jiyang Depression, Bohai Bay Basin
投稿时间:2019-07-17  修订日期:2019-08-20
DOI:
中文关键词:  地层圈闭  地质风险  成藏有效性  济阳坳陷  渤海湾盆地
英文关键词:stratigraphic trap  geological risk  accumulation effectiveness  jiyang depression  bohai bay basin
基金项目:国家科技重大专项(2016ZX05006-003),中石化重大科技攻关项目(ZDP17008)
  
作者单位
安天下 中国石油化工股份有限公司胜利油田分公司勘探开发研究院
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中文摘要:
      为了提高地层圈闭勘探成功率,本文以渤海湾盆地济阳坳陷为例,从已发现地层油藏解剖入手,结合地质风险要素分析及权重评价,开展了地层圈闭成藏有效性评价方法的建立。结果表明:济阳坳陷盆缘地层圈闭勘探风险评价主要包括运聚匹配条件、保存条件、圈闭条件及储层条件等4大地质条件10个地质要素;利用钻探成功率法和累计概率曲线法可以划分不同地质条件中地质要素的风险级别,利用成功率影响程度对比法可以确定不同地质要素的权重系数;最终利用地质风险概率法建立了济阳坳陷盆缘地层圈闭勘探评级分级标准和勘探风险评价方法,提高了地层圈闭含油性判识能力,完善和发展了勘探风险评价方法体系。该方法对于中国东部类似盆地地层油藏的勘探同样具有借鉴和指导意义。
英文摘要:
      In order to improve the success rate of stratigraphic trap exploration, this paper takes Jiyang depression of Bohai bay basin as an example, starts from the analysis of discovered stratigraphic reservoirs, and combines with the weight evaluation of geological risk factors to establish the effective evaluation method of stratigraphic trap accumulation. The results show that the risk assessment of trap exploration in the basin margin of Jiyang depression mainly includes four geological conditions, such as operation and accumulation matching conditions, preservation conditions, trap conditions and reservoir conditions, and 10 geological elements. Drilling success rate method and cumulative probability curve method can be used to classify the risk levels of geological elements in different geological conditions. The weight coefficients of different geological elements can be determined by the method of comparing the influence degree of success rate. Finally, the grading standard and risk evaluation method for stratigraphic trap exploration in the basin margin of Jiyang depression were established, which improved the oil-bearing evaluation ability of stratigraphic trap and improved and developed the risk evaluation method system for exploration. The method system can be used for reference and guidance in the exploration of similar basins in eastern China.
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