断层岩古泥质含量恢复及古侧向封闭能力定量评价

The clay content of fault rock(SGR) is the key factor to decide the lateral sealing ability of fault, the characteristics of dynamic evolution of oil and gas accumulation and fault are considered, the evolution history of clay content affects the effectiveness of now fault controlling oil and gas. This topic in Jizhong depression in Bohai Bay Basin in Wen'an slope of Baxian depression as the research object, quantitative analysis the relationship of fault rock clay content and Oil-gas bearing capacity of oil and gas reservoirs, determining the fault lateral seal standard;Through the analysis of fault growth evolution history and evolution history of faulted strata within the clay content, recovery method of fault rock paleo clay content is established, and using the reservoir quantitative fluorescence analysis technology (QGF) to verify the feasibility of recovery method of fault rock paleo clay content, then the correlation between QGF and fault rock paleo clay content to identify the results of the paleo oil layer is analyzed; On this basis, combined with the prediction the scope of of paleo oil reservoir, establish a set of quantitative evaluation of paleo clay content recovery and paleo lateral sealing ability of fault rocks, Analysising the degree of lateral fault controlling oil and gas in the different geologic periods, and the relationship with the current distribution of oil and gas, To further improve the lateral sealing theory of fault, reducing the risk of fault trap drilling, and provide a powerful target for oil field exploration and deployment.

断层岩泥质含量（SGR）是决定断层侧向封闭能力强弱的关键因素，考虑到油气成藏与断层都具有动态演化的特征，断层岩泥质含量演化史影响着现今断层控制油气的有效性。本课题以渤海湾盆地冀中坳陷霸县凹陷文安斜坡为研究目标，量化现今断层岩泥质含量与油气藏含油气性之间的关系，建立断层侧向封闭油气的标准；分析断层生长演化史和断移地层内泥质含量的演化史，建立断层岩古泥质含量恢复方法，并利用储层定量荧光分析技术（QGF)验证断层古泥质含量（Paleo-SGR）恢复方法的可行性，以及分析QGF和断层古泥质含量识别古油层结果的相关性；在此基础上，结合QGF标定的古油藏范围，最终建立一套断层岩古泥质含量恢复及古侧向封闭能力定量评价的方法，分析不同地史时期断层侧向控油气程度，以及与现今油气分布的关系，进一步完善断层侧向封闭理论，降低断圈钻探风险，为油田勘探部署提供有力目标。

油气成藏过程中，断层封闭性具有动态演化特征，断层岩泥质含量演化史影响着现今断层控制油气的有效性，增加了断圈钻探风险。本课题通过量化现今断层岩泥质含量与油气藏含油气性之间的关系，建立断层侧向封闭油气的标准；分析断层生长演化史和断移地层内泥质含量的演化史，建立断层岩古泥质含量评价参数，结合储层定量荧光分析技术验证评价参数可行性，以及建立一套断层岩古泥质含量恢复及古侧向封闭能力定量评价的方法，并以渤海湾盆地冀中坳陷霸县凹陷文安斜坡为研究目标，实现了断层岩古泥质含量恢复及侧向封闭性定量评价，这对进一步完善断层侧向封闭理论，降低断圈钻探风险，为油田勘探部署提供有力目标，具有重要理论和实际意义。