玛北斜坡区三叠系百口泉组优质储层地震预测技术研究及应用

发布时间：2018-04-16 03:06

本文选题：扇三角洲前缘 + 砂砾岩储层　；参考：《成都理工大学》2015年硕士论文

【摘要】：近年来,在新疆准噶尔盆地玛北斜坡区百口泉组多口井获得了工业油流,夏子街扇体西翼整体连片油气藏群,显示出了百口泉组良好的油气勘探前景。玛北斜坡区百口泉组地层为扇三角洲沉积,砂砾岩储层纵向上多期扇体叠置,横向岩性及厚度变化大,储层非均质性强,孔隙类型以剩余粒间孔、粒内溶孔为主,为低孔低渗特征。这一特点使利用测井资料和地震资料进行优质储层预测存在很大问题。针对百口泉组储层发育地质特点,采取多种地震技术手段和方法进行了分析和研究。首先通过地质录井、岩心观察、薄片分析资料,确定与岩性反映敏感的常规测井响应参数--电阻率。在明确储层特征的前提下,在诸多储层预测方法中,通过比较分析,优选了地震相、地震多属性分析和地质统计学电阻率反演、多属性融合等技术手段对百口泉组砂砾岩优质储层进行预测。最后通过采用地震相和地质统计学协模拟的电阻率以及波阻抗三种属性相融合的技术,有效的预测了本区的有利储层分布,刻画了本区三类储层及泥岩的分布范围;通过项目研究,形成了一套针对本地区百口泉组砂砾岩优质储层预测行之有效的技术手段,也为玛北斜坡区控制储量的计算和油气藏的描述提供了可靠的、重要的依据。
[Abstract]:In recent years, industrial oil flow has been obtained in many wells of Baikouquan formation in Mabei slope area of Junggar Basin, Xinjiang, and the whole connected oil and gas reservoir group in the west wing of Xiazijie fan body shows a good prospect for oil and gas exploration in Baikouquan formation.The formation of Baikouquan formation in Mabei slope area is fan-delta sedimentary, and the sand gravel reservoir is overlapped in many stages in longitudinal direction. The lateral lithology and thickness change greatly, the reservoir heterogeneity is strong, and the pore type is mainly residual intergranular pore and intragranular dissolved pore.It is characterized by low porosity and low permeability.This feature makes it difficult to use logging data and seismic data to predict high quality reservoir.According to the geological characteristics of reservoir development in Baikouquan formation, various seismic techniques and methods are adopted to analyze and study.Firstly, through geological logging, core observation and thin slice analysis, the conventional logging response parameter-resistivity, which is sensitive to lithology reflection, is determined.On the premise of defining reservoir characteristics, seismic facies, seismic multi-attribute analysis and geostatistical resistivity inversion are selected through comparative analysis in many reservoir prediction methods.Multi-attribute fusion is used to predict the high-quality sand-gravel reservoir of Baikouquan formation.Finally, by using the technique of combining the resistivity and wave impedance of seismic facies and geostatistical cosimulation, the favorable reservoir distribution in this area is predicted effectively, and the distribution range of three types of reservoirs and mudstone in this area is described.Through the project research, a set of effective technical means for prediction of high quality sand and gravel reservoirs of Baikouquan formation in this area has been formed, which also provides a reliable and important basis for the calculation of controlled reserves and the description of oil and gas reservoirs in the Mabei slope area.
【学位授予单位】：成都理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13;P631.4

【参考文献】