本文選題：筆石頁巖 + 熱解色譜��； 參考：《巖礦測試》2017年03期

【摘要】：我國南方海相頁巖中普遍發(fā)育的筆石與海相頁巖氣成因具有密切的關系,但筆石是否具有頁巖氣生烴能力,一直未有可靠的、直接的相關實驗證實。本文通過采集筆石含量豐富的黑色頁巖,手工挑選純筆石樣品并進行熱解生烴模擬實驗研究,證實了筆石頁巖中的筆石是一種較好的生烴母質(zhì)。筆石樣品的碳含量較高,貢獻了筆石頁巖的大部分碳來源。達到生油高峰后的筆石熱解生烴產(chǎn)物主要為天然氣-輕質(zhì)油,這兩部分生烴產(chǎn)物占總生烴產(chǎn)物的94%以上,且其中的氣態(tài)烴占總烴比例達到了54%左右。分析認為,筆石的熱解生烴特征介于Ⅲ型有機質(zhì)和Ⅱ型有機質(zhì)之間,近似于Ⅲ型有機質(zhì)生烴特征,以氣態(tài)烴產(chǎn)物為主。由此推論,在筆石熱成熟演化過程中,其有機質(zhì)生烴能力可能更高,與目前南方廣泛發(fā)育頁巖氣的成因息息相關。
[Abstract]:There is a close relationship between the genesis of marine shale gas and the widespread development of graptolite in marine shale in southern China. However, whether graptolite has the hydrocarbon generation ability of shale gas has not been confirmed by reliable and direct relevant experiments. In this paper, by collecting the black shale with abundant graptolite content, selecting the pure graptolite sample by hand and conducting the pyrolytic hydrocarbon-generating simulation experiment, it is proved that the graptolite in the graptolite shale is a better hydrocarbon generating material. The carbon content of graptolite samples is high, contributing to most of the carbon source of graptolite shale. The pyrolytic hydrocarbon generation products of graptolite after the peak of oil generation are mainly natural gas and light oil, which account for more than 94% of the total hydrocarbon generation products, and the gaseous hydrocarbon accounts for about 54% of the total hydrocarbon generation products. It is considered that the pyrolytic hydrocarbon generation characteristics of graptolites are between type 鈪，

本文編號：2085974