松辽盆地三肇凹陷扶余油层致密储层分类精细评价

发布时间：2018-05-24 10:10

  本文选题：致密油 + 纳米　； 参考：《石油实验地质》2017年05期

【摘要】：精细评价的方法主要体现在精细分类和纵向细分层2个方面。通过沉积及砂体特征的精细研究,利用恒速压汞、高压压汞以及纳米微观分析等手段综合研究,认为扶余油层致密储层可以划分为2大类3小类,即Ⅰ-1,Ⅰ-2和Ⅱ类,其中致密油储层与常规储层的分界物性为孔隙度12%,渗透率1×10~(-3)μm~2,孔喉半径为350 nm;其余Ⅰ-1和Ⅰ-2类以及Ⅰ-2和Ⅱ类物性标准分别以孔隙度10%和8%,渗透率0.25×10~(-3)μm~2和0.1×10~(-3)μm~2为界,对应的孔喉半径分别为150 nm和75 nm。通过纵向细分层精细12分的砂层组级研究,每一层砂层组内仅含有1~2个砂体,I类致密油集中发育在FⅠ2-1,FⅠ3-1以及FⅡ2-2砂层组。在分层落实不同类型致密油剩余资源后,通过致密油水平井钻探及大规模体积压裂,可以有效开发致密油资源。
[Abstract]:The methods of fine evaluation are mainly reflected in fine classification and longitudinal subdivision. Based on the detailed study of sediment and sand body characteristics, and by means of constant velocity mercury pressure, high pressure mercury injection and nano micro analysis, it is concluded that the dense reservoir of Fuyu reservoir can be divided into 2 categories and 3 subclasses, I. e. I-1, I-2 and II. The boundary physical properties of tight oil reservoir and conventional reservoir are porosity 12, permeability 1 脳 10 ~ (-3) 渭 m ~ (-2) and throat radius 350 nm, the other physical property standards of 鈪，

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