本文關(guān)鍵詞： 煤系非常規(guī)氣 木里煤田 致密砂巖 侏羅系　出處：《煤炭科學(xué)技術(shù)》2017年07期 　論文類型：期刊論文

【摘要】：為探索木里煤田煤系氣賦存特征,通過含氣性、烴源巖有機(jī)地化以及儲(chǔ)集層物性特征的分析測(cè)試,認(rèn)為煤系氣含氣量變化較大,以木里組上段含氣量最高;總有機(jī)碳含量和生烴潛率評(píng)價(jià)均顯示此組煤系烴源巖為優(yōu)質(zhì)烴源巖,其中煤為Ⅲ型干酪根,而油頁巖、泥巖為Ⅱ2型干酪根,Ro分布在0.74%~1.85%,處于成熟-高成熟度的有利生氣階段;煤儲(chǔ)層孔隙度為2.7%~13.7%,滲透率為(0.03~10.6)×10-3μm~2,而頁巖及致密砂巖儲(chǔ)層孔隙度普遍不高于4.5%,滲透率普遍低于0.1×10~(-3)μm~2。結(jié)合典型鉆孔分析建立了木里煤田內(nèi)的3種煤系非常規(guī)氣共存組合模式。在總結(jié)了木里煤田的煤系非常規(guī)氣的成藏特征基礎(chǔ)上,綜合分析認(rèn)為中侏羅統(tǒng)木里組上段以及江倉(cāng)組是煤系非常規(guī)氣勘探的重點(diǎn)層段,并進(jìn)一步提出了勘探開發(fā)建議。
[Abstract]:In order to explore the gas occurrence characteristics of coal measures in Muli coalfield, through the analysis and test of gas content, organic geochemistry of hydrocarbon source rock and physical properties of reservoir, it is considered that the gas content of coal measure gas varies greatly, with the upper part of Muli formation having the highest gas content. The evaluation of total organic carbon content and hydrocarbon generation potential shows that the source rocks of this group are high quality source rocks, in which coal is type 鈪，

本文編號(hào)：1461390