【作者】 汤军；

【导师】 赵鹏大；

【作者基本信息】 中国地质大学（北京） ， 地球探测与信息技术， 2003， 博士

【摘要】 本文创新性地将地质异常概念引入油气勘探领域，以地质异常理论为指导，以胜利油田临清坳陷油气地质异常预测研究为例，针对我国陆相含油气盆地的常规测量、测试和解释数据，如与地震相关的数据(振幅、频率、吸收系数、层速度等)、与测井相关的数据(自然电位、声波、视电阻率、自然伽马等)等，提取不同数据类型的地质异常以及异常组合特征，通过对这些参数的综合研究分析其空间变化规律，系统地建立有效预测油气藏的新技术和新方法，进而达到区域油气资源预测的研究目的。 本文对临清东部区域地质异常进行研究，包括：临清坳陷东部区域致矿地质异常演化的三维空间分析，地质异常定量分析，以及油气地质异常综合模型及靶区预测评价研究。 本文初步建立了油气地质异常研究框架，实现并完善了油气地质异常定量分析研究的技术方法，有效提取了不同参数的地质异常和异常组合特征，通过模型区、研究区不同地质异常参数特征的对比研究，确定油气地质异常范围区域，探讨了油气地质异常成因。 本文研究取得以下新的认识： 1．地质异常研究发展到油气地质异常研究，从理论到方法都是可行的。 2．利用一维、二维或三维各类参数数据，包括各种地质观测数据、录井数据、物、化探数据等，对其进行地质异常定量计算，尤其是多参数组合定量分析，如熵函数计算，复杂度、相似度计算，分维数计算，可以查明并圈定出变异界线与变异空间。 3．模型区研究表明，测井参数的地质异常数值与油气藏的关系密切；而且选取不同的多个测井参数计算得到的多个地质异常数值，与油气藏特征之间具有稳定的对比性。表明该地质异常参数具有较好的稳定性。 4．由地震数据计算得到的地质异常数值，与油气藏也具有较好的对比性，可以提取相应的油气地质异常。 5．德南研究区沙河街组地层存在三类油气地质异常，其中Ⅰ类油气地质异常区域可与其他致矿地质异常因素(沉积过程、地球化学演化)相对比。 本文取得的结果证明油气地质异常研究在理论上的创新性，技术方法的先进性，以及实际应用的可行性与有效性。随着不断地实践，这一新理论、新方法一定会在油气勘探领域广泛发展，变得成熟起来。更多还原

【Abstract】 A basic concept of oil geoanomaly is brought forward creatively in this paper. Oil geoanomalies include four types which are sedimentary geoanomaly, tectonic geoanomaly, geochemistry geoanomaly, strata pressure geoanomaly. Their distributing ranges may be separated to four ranks that include region-oil geoanomaly, enclose-oil geoanomaly, minitype-oil geoanomaly, microscope-oil geoanomaly. The method of studying nontraditionally on oil geoanomaly is also summarized.On the basis of the calculating of complexity(C value) and combination entropy(H value)from the numerical method of geoanomaly analysis, logged signals data (spontaneous potential, acoustic slowness, spontaneous gamma ray and electrical resistivity) and seismic data (amplitude, frequency, phase, etc.) are processed after regularization of data obtained from Linqing Basin of Shengli oil field. Many types of geoanomalies obtained from the computation are analyzed so the spacial variation rules of them can be discovered. Then the oil regions can be predicted by this method.In this paper, the basic concept of oil geoanomaly is summarized systematically, and the method of quantitative analysis are realized by computer programs. The area coverage of oil geoanomaly also can be circled by the research of geoanomaly calculating with the data of selected model region and the work region. The causing of oil geoanomaly can be explained. Many new apperceptions can be obtained from the research:1. It’s feasible that the theoretical development from geoanomaly to oil geoanomaly.2. Making use of many kind of parameters data including logging, geological, geophysical data in one dimensional, two dimensional or three dimensional, variational boundaries and changed space can be inquired and circled by geoanomaiy quantitative calculating.3. The research of selected model proves that there is a close relationship between the geoanomaly calculated from logging data and an oil reservoir and the geoanomaly is stability.4. There is a close relationship between the geoanomaly calculated from seismic data and an oil reservoir. So the oil geoanomaly can be taken out.5.There are three types of oil anomalies in the formation of the group of Sha he-jie in Dezhou in the Linqing Basin of Shengli oil field, and the area of first type of oil anomaly is similar with other geoanomalies circled by sedimentary and geochemical.The results from the research prove that the concept of oil geoanomaly is creative, and the method is feasible. With practise constantly the new method must be developed and grown up.更多还原