本文選題：海相頁巖 + 斑脫巖　； 參考：《石油學(xué)報(bào)》2017年12期

【摘要】：以巖心精細(xì)描述為基礎(chǔ),借助全巖/黏土X射線衍射分析、氬離子拋光掃描電鏡等測試技術(shù),從斑脫巖發(fā)育特征、頁巖儲層品質(zhì)和儲層品質(zhì)差異性發(fā)育機(jī)理3個(gè)方面,對涪陵地區(qū)上奧陶統(tǒng)五峰組—下志留統(tǒng)龍馬溪組一段海相頁巖中斑脫巖的發(fā)育特征及其與頁巖儲層品質(zhì)之間的關(guān)系進(jìn)行了研究。研究表明,本地區(qū)上奧陶統(tǒng)五峰組—下志留統(tǒng)龍馬溪組一段共發(fā)育42層斑脫巖層,結(jié)合斑脫巖層單層厚度和層間厚度,將其劃分為密集發(fā)育段、較發(fā)育段和欠發(fā)育段3個(gè)階段。通過對比不同發(fā)育段頁巖儲層品質(zhì)特征發(fā)現(xiàn),較發(fā)育段具有高脆性礦物、高有機(jī)碳含量和高含氣性的特征,為最有利頁巖儲層發(fā)育段。此外,從古海洋氧化還原環(huán)境和古生產(chǎn)力2個(gè)方面闡述了間發(fā)性火山活動是導(dǎo)致沉積期氧化還原環(huán)境變化的主要原因,且適度的火山活動有利于有機(jī)質(zhì)和生物成因硅質(zhì)礦物的富集,促進(jìn)了優(yōu)質(zhì)頁巖的形成。
[Abstract]:Based on the fine description of the core, with the help of X-ray diffraction analysis of whole rock / clay, argon ion polishing scanning electron microscope and other testing techniques, the characteristics of porphyry derocking, the development mechanism of shale reservoir quality and the different development mechanism of reservoir quality are discussed. The developmental characteristics of porphyry in marine shale of the first member of the Upper Ordovician Wufeng formation and Lower Silurian Longmaxi formation and its relationship with shale reservoir quality were studied in Fuling area. The study shows that 42 layers of porphyry deformations are developed in the first member of the Wufeng formation and Lower Silurian Longmaxi formation of Upper Ordovician in this area. Combined with the monolayer thickness and the interlayer thickness of the porphyry layer, they are divided into three stages of dense development, relatively developed and underdeveloped. By comparing the characteristics of shale reservoir quality in different developing stages, it is found that the relatively developed stage has the characteristics of high brittle minerals, high organic carbon content and high gas content, which is the most favorable shale reservoir development segment. In addition, from two aspects of the paleoceanic redox environment and paleoproductivity, it is expounded that the main reason for the change of redox environment in the sedimentary period is the intergenic volcanic activity. Moderate volcanic activity is beneficial to the enrichment of organic matter and biogenic siliceous minerals and promotes the formation of high quality shale.
【作者單位】： 中國地質(zhì)大學(xué)資源學(xué)院;中國地質(zhì)大學(xué)海洋學(xué)院;中國石油化工股份有限公司江漢油田分公司勘探開發(fā)研究院;
【基金】：國家重大科技專項(xiàng)(2016ZX05060-004) 國家自然科學(xué)基金項(xiàng)目(No.41690131、No.41772148、No.41702149)資助
【分類號】：P618.13

【相似文獻(xiàn)】

相關(guān)期刊論文 前10條

1 蘇文博,何龍清,王永標(biāo),龔淑云,周湖云;華南奧陶-志留系五峰組及龍馬溪組底部斑脫巖與高分辨綜合地層[J];中國科學(xué)(D輯:地球科學(xué));2002年03期

2 劉樹根;馬文辛;LUBA Jansa;黃文明;曾祥亮;張長俊;;四川盆地東部地區(qū)下志留統(tǒng)龍馬溪組頁巖儲層特征[J];巖石學(xué)報(bào);2011年08期

3 張春明;姜在興;郭英海;張維生;;川東南—黔北地區(qū)龍馬溪組地球化學(xué)特征與古環(huán)境恢復(fù)[J];地質(zhì)科技情報(bào);2013年02期

4 張小龍;李艷芳;呂海剛;閆建萍;妥進(jìn)才;張同偉;;四川盆地志留系龍馬溪組有機(jī)質(zhì)特征與沉積環(huán)境的關(guān)系[J];煤炭學(xué)報(bào);2013年05期

5 王適擇;李忠權(quán);郭明;李洪奎;;川南長寧地區(qū)龍馬溪組頁巖裂縫發(fā)育特征[J];科學(xué)技術(shù)與工程;2013年36期

6 周懇懇;牟傳龍;梁薇;葛祥英;;湘西北龍山、永順地區(qū)龍馬溪組潮控三角洲沉積的發(fā)現(xiàn)——志留紀(jì)“雪峰隆起”形成的新證據(jù)[J];沉積學(xué)報(bào);2014年03期

7 劉樹根;王世玉;孫瑋;冉波;楊迪;羅超;葉sズ，

本文編號：1911592