發(fā)布時(shí)間：2018-06-17 22:42

  本文選題：勃利盆地 + 致密油氣�。� 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：致密油氣作為一種非常規(guī)油氣已逐漸成為勘探開發(fā)的重點(diǎn)。勃利盆地位于佳木斯—伊通地塹東部,是中生界大三江含煤沉積盆地經(jīng)后期改造后的殘留盆地之一。從有效烴源巖、致密儲(chǔ)層的發(fā)育情況及空間配置關(guān)系等各項(xiàng)指標(biāo)均可證實(shí),盆地內(nèi)存在一定規(guī)模的致密油氣。但是盆地油氣勘探程度低,可用資料有限,致密油氣資源潛力認(rèn)識(shí)不清,有利區(qū)分布不明。本文針對(duì)上述問題,以勃利盆地致密油氣資源潛力和有利區(qū)優(yōu)選為研究重點(diǎn),在現(xiàn)有研究的基礎(chǔ)上,綜合利用地震、測(cè)井、錄井、巖心等資料,分析致密油氣的形成條件,對(duì)勃利盆地的生儲(chǔ)蓋特征進(jìn)行較為詳細(xì)研究。研究結(jié)果表明,勃利盆地主要烴源巖層位為城子河組,有機(jī)質(zhì)類型是Ⅱ~Ⅲ型,基本處于成熟階段;儲(chǔ)層為城子河組和穆棱組,巖性以低孔低滲的砂巖為主;城子河組及穆棱組的泥巖及凝灰?guī)r是盆地內(nèi)主要的蓋層;生儲(chǔ)蓋組合配置良好。但由于盆地形成后經(jīng)過了強(qiáng)烈的構(gòu)造改造,油氣的保存條件復(fù)雜,除區(qū)域蓋層外,斷裂對(duì)油氣的保存也有重要的作用。依據(jù)致密油氣成藏規(guī)律,按照“有生、有儲(chǔ)、垂運(yùn)、有�！彼脑瓌t條件結(jié)合多因素疊合法優(yōu)選油氣有利區(qū),優(yōu)選出位于中部坳陷中南部的東西兩側(cè)的兩個(gè)最有利區(qū)。最后在油氣地質(zhì)分析的基礎(chǔ)上,綜合利用生烴法、類比法和體積法對(duì)勃利盆地致密油氣的資源量進(jìn)行了估算,結(jié)果是油資源量為3521×104t,氣資源量為322.7×108m3。
[Abstract]:As a kind of unconventional oil and gas, dense oil and gas has gradually become the focus of exploration and development. The Boli basin is located in the eastern part of Jiamusi-Yitong graben. It is one of the residual basins in the Mesozoic Dasanjiang coal-bearing basin after its later reformation. It can be proved from the effective source rocks, the development of tight reservoirs and the spatial distribution relationship that there is a certain scale of dense oil and gas in the basin. However, the oil and gas exploration degree in the basin is low, the available data is limited, the potential of dense oil and gas resources is not clear, and the distribution of favorable areas is unknown. In order to solve the above problems, this paper focuses on the potential of dense oil and gas resources and optimal selection of favorable areas in Boli Basin. On the basis of existing research, the formation conditions of dense oil and gas are analyzed by using seismic, logging, core and other data synthetically. The characteristics of reservoir and caprock in Boli Basin are studied in detail. The results show that the main source rock formations in the Boli Basin are Chengzihe formation, the organic matter type is type 鈪，

本文編號(hào)：2032751