松遼盆地三肇凹陷扶余油層致密儲(chǔ)層分類(lèi)精細(xì)評(píng)價(jià)
發(fā)布時(shí)間:2018-05-24 10:10
本文選題:致密油 + 納米; 參考:《石油實(shí)驗(yàn)地質(zhì)》2017年05期
【摘要】:精細(xì)評(píng)價(jià)的方法主要體現(xiàn)在精細(xì)分類(lèi)和縱向細(xì)分層2個(gè)方面。通過(guò)沉積及砂體特征的精細(xì)研究,利用恒速壓汞、高壓壓汞以及納米微觀分析等手段綜合研究,認(rèn)為扶余油層致密儲(chǔ)層可以劃分為2大類(lèi)3小類(lèi),即Ⅰ-1,Ⅰ-2和Ⅱ類(lèi),其中致密油儲(chǔ)層與常規(guī)儲(chǔ)層的分界物性為孔隙度12%,滲透率1×10~(-3)μm~2,孔喉半徑為350 nm;其余Ⅰ-1和Ⅰ-2類(lèi)以及Ⅰ-2和Ⅱ類(lèi)物性標(biāo)準(zhǔn)分別以孔隙度10%和8%,滲透率0.25×10~(-3)μm~2和0.1×10~(-3)μm~2為界,對(duì)應(yīng)的孔喉半徑分別為150 nm和75 nm。通過(guò)縱向細(xì)分層精細(xì)12分的砂層組級(jí)研究,每一層砂層組內(nèi)僅含有1~2個(gè)砂體,I類(lèi)致密油集中發(fā)育在FⅠ2-1,FⅠ3-1以及FⅡ2-2砂層組。在分層落實(shí)不同類(lèi)型致密油剩余資源后,通過(guò)致密油水平井鉆探及大規(guī)模體積壓裂,可以有效開(kāi)發(fā)致密油資源。
[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,
本文編號(hào):1928675
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