LS块稠油储层测井精细评价及应用

发布时间：2018-01-16 19:12

本文关键词：LS块稠油储层测井精细评价及应用　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：随着LS块稠油开发进度的推进,原有的测井解释评价标准和认识已经不能完全满足该区块的地质需求。解释评价精度不高,无法揭示LS块稠油储层的非均质性与SAGD开采工艺中蒸汽腔扩展之间的关系,严重阻碍了稠油开采收率的提高。因此根据岩心数据、生产数据和试采油资料以及一些现场的监测数据,重新建立了精确的储层参数评价模型。划分了储层分类标准,并建立了新的测井解释评价标准。在建立参数模型中,选择深侧向电阻率曲线计算泥质含量前,先进行了油气校正和统一标准孔隙度校正,解决了原解释模型中高电阻率稠油储层泥质含量计算结果不够精确的问题。选择了地层因素法用声波时差进行孔隙度计算,同时拟合了地层因素地层深度的关系,计算结果与岩心孔隙度数据更为符合。在整个计算模型中创新设计运用了迭代技术和最优化方法,使得最终的计算结果参数更加精准,更加贴合实验室岩心分析数据。在新的测井精细评价成果的基础上分析了LS块油藏分布特征,全面识别和认识了储层中的低物性层和隔夹层类型,建立了适合该区块的隔夹层的识别与评价标准,创新建立了SAGD蒸汽注采中N<温曲线变化和不同物性之间的定量变化标准,构建了三维油藏地质模型,较好地揭示了SAGD蒸汽腔扩展与隔夹层之间的关系。
[Abstract]:With the progress of heavy oil development in LS block, the original logging interpretation evaluation criteria and understanding can not fully meet the geological needs of the block, and the interpretation and evaluation accuracy is not high. It is impossible to reveal the relationship between the heterogeneity of heavy oil reservoir in LS block and the expansion of steam cavity in SAGD production process, which seriously hinders the improvement of heavy oil recovery. The accurate evaluation model of reservoir parameters and the classification standard of reservoir are established by production data and oil production test data as well as some field monitoring data. In the parameter model, oil and gas correction and uniform standard porosity correction were carried out before selecting the deep lateral resistivity curve to calculate the shale content. It solves the problem that the calculation result of shale content in high resistivity heavy oil reservoir in the original interpretation model is not accurate enough. The formation factor method is chosen to calculate porosity by acoustic time difference. At the same time, the relationship between formation factors and formation depth is fitted, and the calculated results are more consistent with the core porosity data. In the whole calculation model, the iterative technique and the optimization method are used in the innovative design. Make the final calculation parameters more accurate, more close to the laboratory core analysis data. On the basis of the new logging fine evaluation results, the reservoir distribution characteristics of LS block are analyzed. In this paper, the low physical layer and intercalation type in reservoir are fully recognized and recognized, and the identification and evaluation standard of interlayer suitable for this block is established, and the N in steam injection and production of SAGD is established innovatively.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE345;P631.81

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