本文關(guān)鍵詞：川西南威遠(yuǎn)地區(qū)龍馬溪組頁巖儲層孔隙發(fā)育特征及控制因素分析　出處：《地質(zhì)科技情報(bào)》2017年02期 　論文類型：期刊論文

  更多相關(guān)文章： 龍馬溪組 孔隙類型 孔隙結(jié)構(gòu)特征 控制因素

【摘要】：以四川盆地西南威遠(yuǎn)地區(qū)龍馬溪組頁巖為研究對象,通過X衍射、場發(fā)射掃描電鏡、氮?dú)馕綄?shí)驗(yàn)方法和QSDFT的分析方法,對該區(qū)的頁巖孔隙類型、結(jié)構(gòu)及孔隙發(fā)育的自身控制因素進(jìn)行了研究。研究結(jié)果表明:1龍馬溪組主要發(fā)育3種孔隙,即有機(jī)質(zhì)孔、無機(jī)質(zhì)孔和微裂縫,有機(jī)質(zhì)孔有連續(xù)分布和不連續(xù)或塊狀分布2種形態(tài),孔隙以2種結(jié)構(gòu)為主,即墨水瓶孔和平行狹縫內(nèi)壁的孔隙。2孔隙直徑呈0~2,2~4nm雙峰態(tài)分布,微孔和介孔提供了主要的比表面積和孔隙體積,且隨著埋藏深度的變淺,儲層的孔隙體積和比表面積均減小。3頁巖有機(jī)質(zhì)含量和礦物組成控制了頁巖儲層的孔隙發(fā)育,有機(jī)質(zhì)主要控制微孔的發(fā)育;石英主要影響介孔的發(fā)育,對其有一定的抑制作用;黏土礦物有利于介孔的發(fā)育,不利于微孔的發(fā)育。4與焦石壩地區(qū)頁巖儲層的對比表明,有機(jī)質(zhì)含量是頁巖氣儲集空間發(fā)育的主控因素。
[Abstract]:The shale longmaxiformation Weiyuan area of Southwest Sichuan basin as the research object, by means of X diffraction, field emission scanning electron microscopy, analysis method of nitrogen adsorption method and QSDFT, the shale pore types in this area, the control factors of structure and porosity were studied. The results showed that: 1 Longmaxi main there are 3 kinds of pores, namely organic pore, inorganic pore and micro fracture, organic matter has a continuous distribution and discontinuous or block the distribution of 2 kinds of forms, with 2 kinds of pore structure, Jimo water hole and the inner wall of the parallel slit pore.2 pore diameter was 0~2,2~4nm Shuangfeng normal distribution, microporous and mesoporous provides the main the specific surface area and pore volume, and with the buried depth of shallow reservoir, the pore volume and specific surface area decreased.3 shale content of organic matter and mineral composition control of shale reservoir porosity, organic matter is mainly control The development of microporous mesoporous silica; mainly influences the development, have a certain inhibitory effect on the mesoporous; clay mineral is conducive to development, is not conducive to the development of comparative.4 and coke dam area of shale reservoir pore showed that organic matter content is the main control of shale gas reservoir space development factors.

【作者單位】： 成都理工大學(xué)油氣藏地質(zhì)及開發(fā)工程國家重點(diǎn)實(shí)驗(yàn)室;成都理工大學(xué)能源學(xué)院;大慶油田第四采油廠地質(zhì)大隊(duì);成都理工大學(xué)地球科學(xué)學(xué)院;
【基金】：國家重點(diǎn)基礎(chǔ)研究發(fā)展計(jì)劃(973)課題“中上揚(yáng)子地區(qū)構(gòu)造演化與下古生界油氣多期成藏”(2012CB214805) 四川省科技計(jì)劃項(xiàng)目“強(qiáng)改造作用下川南地區(qū)下古生界頁巖氣保存條件研究”(2015SZ0001)
【分類號】：P618.13
【正文快照】： 孔隙發(fā)育特征及控制因素分析昝博文1a,1b,劉樹根1a,1b,白志強(qiáng)2,冉波1a,1c,葉sズ，

本文編號：1400412