本文選題：德惠斷陷 + 火石嶺組　； 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：東部斷陷帶火石嶺組地層含氣面積廣,潛力巨大,但地質(zhì)條件復(fù)雜,普遍勘探程度低,烴源巖化驗分析數(shù)據(jù)較少,這影響了對火石嶺組生烴潛力的認(rèn)識。本文通過對德惠斷陷火石嶺組進(jìn)行定性、定量評價,相信會對未來深層天然氣勘探工作會有一定的指導(dǎo)意義。德惠斷陷位于松遼盆地東南隆起區(qū)中部,斷陷總體上為NE向雙斷型斷陷,過去的資料主要研究的是營城組和沙河子組這兩套主力烴源巖,而對火石嶺組的研究并不多。根據(jù)該區(qū)烴源巖的發(fā)育分布和地化特征,結(jié)合前人的資料對德惠斷陷火石嶺組烴源巖進(jìn)行定性評價。據(jù)鉆井資料顯示,德惠斷陷火石嶺組泥巖分布普遍,暗色泥巖很發(fā)育,并且在德惠斷陷鉆遇煤。應(yīng)用所測巖樣中有機(jī)碳TOC、干酪根顯微組分、有機(jī)質(zhì)族組成、干酪根的碳同位素組成、鏡質(zhì)體反射率等分析指標(biāo)從烴源巖的地球化學(xué)特征,來評價有機(jī)質(zhì)豐度、有機(jī)質(zhì)類型、有機(jī)質(zhì)成熟度等,確定烴源巖的生烴門限,最后根據(jù)埋藏史、熱史、生烴史研究,通過資源量計算,完成該區(qū)烴源巖的定量評價。經(jīng)過評價,德惠斷陷火石嶺組大部分達(dá)到了好~很好的標(biāo)準(zhǔn),有機(jī)質(zhì)類型主要為Ⅱ1、Ⅱ2、Ⅲ型,整體上位于成熟至高成熟階段,其中位于成熟階段的占主要地位,因此,火石嶺組也具有良好的生烴潛力,尤其是生氣潛力更為客觀。德惠斷陷生烴門限在Ro=0.7%,油裂解門限在Ro=1.1%,煤成氣門限在Ro=0.7%。火石嶺組大量生烴時期與泉頭組到嫩江組沉積時期,基本上是一種一一對應(yīng)的關(guān)系。烴源巖資源量評價表明,德惠火石嶺組凈油量為467824.34萬噸,總氣體積為11867.92億方。選取德惠斷陷火石嶺組的運(yùn)聚系數(shù)2.06%,計算出火石嶺組為生氣體積244.48億方。
[Abstract]:The fire Shiling formation in the eastern fault depression zone has a wide range of gas area and great potential, but the geological conditions are complex, the general exploration degree is low and the analysis data of hydrocarbon source rock are less. This has influenced the understanding of the hydrocarbon potential of the fire Shiling group. This paper, through the qualitative and quantitative evaluation of the Dehui faulted fire Shiling group, believes that the deep gas exploration work will be done in the future. The Dehui fault depression is located in the middle of the southeast uplift area of the Songliao Basin, and the fault depression is generally NE trending fault depression. The past data mainly studied the two main source rocks of the Yingcheng Group and the Shahe subgroup, but not much study on the flint rock formation. The data of the source rocks of the fire Shiling formation in the Dehui fault depression are qualitatively evaluated by human data. According to the drilling data, the mud rock in the Shiling formation of the fire in the Dehui fault depression is widely distributed, the dark mudstone is very developed and the coal is drilled in the Dehui fault depression. The organic carbon composition of the kerogen, the carbon isotope composition of the kerogen, the vitrinite composition and the microscopic composition of the kerogen are applied to the rock samples in the Dehui fault depression. From the geochemical characteristics of source rocks, the index of body reflectance is used to evaluate the abundance of organic matter, the type of organic matter, the maturity of organic matter and so on, to determine the hydrocarbon generation threshold of the source rocks. Finally, the quantitative evaluation of the source rocks in this area is completed according to the history of burial, thermal history and hydrocarbon generation. Through the calculation of the resource amount, the Shiling formation of the Dehui faulted fire has been evaluated. Part of the good standard is good, and the main types of organic matter are II 1, II 2 and type III, which are in the mature and high mature stage as a whole, which occupy the dominant position in the mature stage. Therefore, the Firestone Ridge Group also has good hydrocarbon generating potential, especially the potential of gas generation. The hydrocarbon generation threshold of Dehui fault depression is at Ro=0.7%, and the threshold of oil cracking is Ro= 1.1%, the coal formed gas threshold is in the period of large amount of hydrocarbon generation in the Ro=0.7%. fire stone formation and the period of the spring head formation to the Nenjiang formation, which is basically a one-to-one relationship. The evaluation of source rock resources shows that the oil net oil amount of the Dehui fire Shiling formation is 4 billion 678 million 243 thousand and 400 tons and the total gas volume is 1 trillion and 186 billion 792 million. The accumulation coefficient of the Shiling group in Dehui fault depression is selected as the accumulation coefficient of 2.06%. It is calculated that the flint rock group is 24 billion 448 million Party of gas volume.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：P618.13

【參考文獻(xiàn)】

相關(guān)期刊論文 前1條

1 葉龍;柳成志;王小寧;齊東巖;;德惠斷陷沙河子組泥巖封蓋能力綜合評價[J];當(dāng)代化工;2014年04期

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本文編號：2108634