本文關鍵詞： 火山巖 石炭系 克—百斷裂帶 準噶爾盆地　出處：《古地理學報》2017年04期 　論文類型：期刊論文

【摘要】：準噶爾盆地克—百斷裂帶上盤最新鉆井發(fā)現,在石炭系頂面之下較深的內幕火山巖區(qū)域獲得工業(yè)油流。通過巖心、薄片、掃描電鏡、主量元素和巖石物性等資料,明確了研究區(qū)石炭系內幕火山巖儲集層特征及展布。研究表明,克—百斷裂帶上盤石炭系內幕儲集層頂面最大深度位于石炭系不整合面以下800 m,巖相(巖性)以爆發(fā)相空落亞相(凝灰?guī)r)和溢流相下部亞相(安山巖)為主,儲集空間以次生溶孔和構造縫為主。不同巖相具有不同類型和程度的成巖作用,經歷了不同的孔隙演化過程。溢流相上部亞相和溢流相下部亞相孔隙演化程度最高。冷凝固結作用控制其原生孔隙的形成,構造破碎作用及溶蝕作用至關重要。受構造和溶蝕作用控制的Ⅰ類和Ⅱ類儲集層為有效儲集層,主要分布于克—百斷裂附近。
[Abstract]:The latest drilling in the upper plate of the Ke-Bai fault zone in Junggar Basin has found that industrial oil flows are obtained in the deep inside volcanic rock areas below the top of the Carboniferous system. Data such as cores, thin slices, scanning electron microscopy, principal elements and petrophysical properties are obtained. The characteristics and distribution of the inside volcanic rock reservoir of Carboniferous in the study area are clarified. The maximum depth of the top surface of the upper Carboniferous inside reservoir is 800 m below the unconformity surface of the Carboniferous, and the lithofacies (lithology) is dominated by the eruptive facies (tuff) and the lower subfacies (andesite) of the overflow facies. The reservoir space is dominated by secondary dissolved pores and structural fractures. Different lithofacies have different types and degrees of diagenesis. The porosity evolution of the upper subfacies and the lower subfacies of the overflow phase is the highest. The condensation and consolidation control the formation of the primary pore. Tectonic fragmentation and dissolution are very important. The type I and II reservoirs controlled by tectonics and dissolution are effective reservoirs, which are mainly distributed near Yu Ke-100 fault.
【作者單位】： 中國石油大學(北京)油氣資源與探測國家重點實驗室;中國石油大學(北京)地球科學學院;中國石油新疆油田分公司實驗檢測研究院;
【分類號】：P618.13

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