【作者】 段林娣；

【导师】 郑浚茂；

【作者基本信息】 中国地质大学（北京） ， 矿产普查与勘探， 2007， 博士

【摘要】 针对陆相高含泥薄层砂岩储层预测过程中存在的问题,研究了对此类储层进行高分辨率预测的技术对策、技术关键和实现流程,首先确定了“三阶段九步骤”的储层精细预测的策略,并针对高含泥薄层砂岩储层的特点,确定了地球物理资料的预处理、井震关系的分析、多参数多约束条件的储层迭代反演以及深度域的三维综合建模等关键技术环节,另外在储层精细预测过程中各个研究环节的一致性和匹配性也是决定储层预测精度和可靠性的一个关键因素。本研究的主要目的是针对陆相盆地的特殊性,探索出一条适合陆相地质条件高含泥薄层砂岩储层精细预测的技术方法,以提高储层预测和油气预测精度。研究工作以大庆油田松辽盆地西部葡萄花油层为例,对该地区高含泥薄层砂岩储层进行了储层精细预测及相关内容的研究。主要研究内容为:通过对高含泥薄层砂岩储层的测井统计分析和地震正演模拟,分析了研究区高含泥储层的测井响应特征和地震反射特征,认为高含泥的砂岩储层与泥岩在测井资料响应特征区别较小,明显弱于常规砂岩储层,高含泥的砂岩的地震反射特征主要由储层的泥质含量、物性特征和沉积相带决定。采用SNWave叠后地震提频技术改善了高含泥薄层砂岩储层的地震反射特征,利用地震测井资料标准化和岩性特征曲线重构技术提高了测井资料对砂泥岩的区分度,并改善了井震关系。从地震属性直接预测、储层反演和深度域三维综合建模三个尺度逐步深入进行储层预测,并可以保证储层预测的一致性。储层预测过程中,通过对自然伽玛、孔隙度和深侧向电阻率等参数的测井约束反演和三维综合预测,一方面从岩性、有效储层和含油性三个角度进行预测,另一方面可以实现岩性约束储层、储层约束含油性的逐步约束的预测思路。在多参数三维综合建模的基础,通过油水层解释标准的转化可直接得到深度域的油藏预测模型,为研究区高含泥砂泥岩薄互层岩性油藏的解释和预测提供了精确的三维模型。已钻井证明该方法是一套行之有效的精细储层预测方法,而且在实际工作中具有较强的操作性。更多还原

【Abstract】 The strategy, technology and process of high resolution reservoir prediction is studied, on base of analysis on problem in nomarine reservoir prediction. The scheme of“Five Stages-Nine Steps”is put forward according to the characteristic, which includes process of log and seismic data, the well-seismic relation, multi-parameter iterative invertion, 3D integrated reservoir modeling in depth-domain. Another important factor is the consistency and conjunction existing in all stages of fine reservoir prediction. And that, searching for an effective prospect method and technology that adapt to the high-shale-content laminated sand reservoir, so that the risk of oil and gas prospect reduces.The case from DaQing oilfield is researched, reservoir prediction is carried out in PuTaoHua reservoir. The related content is below:The respond in log and reflection in seismic of high-shale-content laminated sand reservoir is analysised according to statistics in log data and Seismic simulation. The log respond of high-shale-content laminated sand reservoir is more weak than that of normal sand reservoir, and the seismic reflection is related to the mud content, properties of reservoir and faces.The SNWave method is adopted to enhance seismic reflection, the log-standard and reconstruction is used to partition the shale and reservoir. Three ways are put up synchronously, direct prediction from seismic attributions, seismic invertion and 3D reservoir modeling in depth domain, the consistent reservoir is revealed in three scales.The GR, porosity and RLLD invertion are carried out in order to obtain sand, porous reservoir and oil reservoir. In this stage, the face- constraint is used in reservoir prediction.On base of 3D properties modeling, the reservoir modeling is build up by conversion in oil-standard.Several drills shows the success and the practicability of fine reservoir prediction which is proposed in this paper.更多还原