本文選題：淮南礦區(qū) + 煤系　； 參考：《煤田地質(zhì)與勘探》2017年06期

【摘要】：采取鉆孔巖心樣品,采用X射線衍射、有機碳含量、鏡質(zhì)體反射率等測試方法,研究淮南礦區(qū)新集井田1001井煤系泥頁巖組成特征、脆性及其沉積控制。結(jié)果表明:煤系泥頁巖TOC質(zhì)量分?jǐn)?shù)偏低,為0.6%~6.05%,平均2.44%;干酪根類型以Ⅲ型為主,少量Ⅱb型,處于生油窗和濕氣生成范圍;泥巖礦物成分以石英和黏土礦物為主,脆性指數(shù)主要為20%~60%,平均45%,儲層脆性高,可壓裂性較好,具有儲層改造的潛力。缺氧滯留還原環(huán)境有利于脆性礦物發(fā)育,對泥頁巖脆性控制有促進作用;海相向陸相環(huán)境過渡過程中,黏土礦物含量增加,脆性礦物含量明顯減少,泥頁巖脆性受抑制;受海洋影響較強的還原環(huán)境對該井煤系泥頁巖中脆性礦物的發(fā)育較為有利,這一結(jié)果可能在較大程度上受埋藏成巖作用的影響。
[Abstract]:By means of X ray diffraction, X ray diffraction, organic carbon content and vitrinite reflectance, the characteristics of shale composition, brittleness and deposition control of coal measures in well field 1001 in Huainan mining area are studied. The results show that the TOC mass fraction of coal system shale is low, 0.6%~6.05%, average 2.44%, and the type of kerogen type is mainly type III and a small amount. Type II B type is in the generating range of oil generating window and wet gas; the mineral composition of mudstone is mainly quartz and clay minerals, the brittleness index is mainly 20%~60%, average 45%, the reservoir brittleness is high, the frac ability is good, and the potential of the reservoir is reformed. The anoxic retention and reduction environment is beneficial to the development of brittle minerals, and it promotes the brittleness control of the shale; the sea phase is directed. During the transition process of continental environment, the content of clay minerals is increased, the content of brittle minerals is reduced obviously, the brittleness of shale is restrained, and the reduction environment which is strongly influenced by the ocean is beneficial to the development of brittle minerals in the shale of the coal system. This result may be greatly influenced by the buried diagenesis.

【作者單位】： 中國礦業(yè)大學(xué)資源與地球科學(xué)學(xué)院;中國礦業(yè)大學(xué)煤層氣資源與成藏過程教育部重點實驗室;
【基金】：國家自然科學(xué)基金項目(41302130) 國家級大學(xué)生創(chuàng)新訓(xùn)練項目(201510290062) 江蘇省大學(xué)生創(chuàng)新訓(xùn)練計劃指導(dǎo)項目(201610290081X)~~
【分類號】：P618.11

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