本文選題：成因分析　切入點(diǎn)：地球化學(xué)特征　出處：《地質(zhì)通報(bào)》2017年04期

【摘要】：金嶺寺-羊山盆地(金羊盆地)是中國(guó)北方侏羅系發(fā)育最完備的地區(qū)之一,盆地內(nèi)充填的下侏羅統(tǒng)北票組為一套湖相泥巖,具有良好的油氣潛力。在金羊盆地章吉營(yíng)子凹陷西緣布置實(shí)施的4口地質(zhì)調(diào)查井中,有3口井見油氣顯示。通過(guò)對(duì)SZK2及SZK3鉆井巖心進(jìn)行現(xiàn)場(chǎng)解析,北票組泥頁(yè)巖在淺層測(cè)試到可觀的頁(yè)巖氣含量,且隨著深度的變化,總含氣量及甲烷含量有所增加。另外,其總含氣量與有機(jī)碳含量呈良好的正相關(guān)關(guān)系,是影響頁(yè)巖含氣量的關(guān)鍵因素。對(duì)比金羊盆地北票組泥頁(yè)巖吸附氣C同位素特征,其氣體成因主要存在生物成因氣和煤型氣2種類型,表明下侏羅統(tǒng)北票組頁(yè)巖氣具有混合多成因的特征。通過(guò)X衍射分析綜合評(píng)價(jià),金羊盆地下侏羅統(tǒng)北票組泥頁(yè)巖壓裂條件好、天然氣吸附能力強(qiáng),具備一定的頁(yè)巖氣勘探前景,是有利的頁(yè)巖氣勘探開發(fā)新層系。
[Abstract]:Jinlingsi-Yangshan Basin (Jinyang Basin) is one of the most developed areas of Jurassic in North China. The Beipiao formation of Lower Jurassic is a set of lacustrine mudstone. It has good oil and gas potential. Of the 4 geological survey wells arranged in the western margin of Zhangjiyingzi sag in Jinyang Basin, 3 wells show oil and gas. The core of SZK2 and SZK3 drilling is analyzed in situ. The content of shale gas in shallow layer of Beipiao formation shale is considerable, and the total gas content and methane content increase with the change of depth. In addition, there is a good positive correlation between total gas content and organic carbon content. Compared with the C isotopic characteristics of shale adsorbed gas in Beipiao formation, Jinyang Basin, there are mainly two types of biogenic gas and coal type gas. The results show that the shale gas of Beipiao formation of Lower Jurassic has the characteristics of mixed multi-genesis. Through the comprehensive evaluation of X-ray diffraction analysis, it is found that the shale shale of Beipiao formation of Lower Jurassic in Jinyang Basin has good fracturing conditions, strong adsorption capacity of natural gas and a certain prospect of shale gas exploration. It is a favorable new series of shale gas exploration and development.
【作者單位】： 中國(guó)地質(zhì)調(diào)查局沈陽(yáng)地質(zhì)調(diào)查中心;中國(guó)石油遼河油田分公司;長(zhǎng)江大學(xué);
【基金】：中國(guó)地質(zhì)調(diào)查局項(xiàng)目《松遼外圍南部盆地群油氣基礎(chǔ)地質(zhì)調(diào)查》(編號(hào):DD20160167)和《遼寧金羊盆地油氣基礎(chǔ)地質(zhì)調(diào)查》(編號(hào):12120115001301)
【分類號(hào)】：P618.13

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本文編號(hào)：1657872