【摘要】：通過(guò)CT掃描、壓汞實(shí)驗(yàn)、穩(wěn)定法氣-水相滲透率實(shí)驗(yàn)、核磁共振等技術(shù),研究了蘇里格西區(qū)盒8段儲(chǔ)層的孔隙結(jié)構(gòu)。研究表明:(1)巖屑石英砂巖孔隙類型主要為粒內(nèi)溶孔、粒間溶孔、高嶺石晶間微孔,巖屑砂巖的孔隙類型以巖屑內(nèi)溶孔、黏土內(nèi)晶間微孔為主,巖屑砂巖的喉道常常被黏土充填,導(dǎo)致巖屑砂巖孔隙的連通性變差;(2)無(wú)論是巖屑石英砂巖還是巖屑砂巖,排驅(qū)壓力都較高,表明孔隙結(jié)構(gòu)十分復(fù)雜,但巖屑石英砂巖的孔隙結(jié)構(gòu)明顯優(yōu)于巖屑砂巖;(3)巖屑砂巖束縛水飽和度高于巖屑石英砂巖,說(shuō)明巖屑石英砂巖的滲透能力好于巖屑砂巖。
[Abstract]:By means of CT scanning, mercury injection test, gas-water phase permeability test by stable method and nuclear magnetic resonance (NMR) technique, the pore structure of the 8 member reservoir in the western part of Sulige is studied. The results show that: (1) the pore types of lithic quartz sandstone are mainly intragranular dissolved pore, intergranular dissolved pore, kaolin-based Shi Jing micropore, lithic sandstone pore type is mainly lithic intergranular pore and clay intergranular micropore, the throat of lithic sandstone is often filled with clay. (2) both lithic quartz sandstone and lithic sandstone have high displacement pressure, which indicates that the pore structure is very complex. However, the pore structure of lithic quartz sandstone is obviously superior to that of lithic sandstone; (3) the irreducible water saturation of lithic sandstone is higher than that of lithic quartz sandstone, which indicates that the permeability of lithic quartz sandstone is better than that of lithic sandstone.
【作者單位】： 成都理工大學(xué)能源學(xué)院;成都理工大學(xué)"油氣藏地質(zhì)及開發(fā)工程"國(guó)家重點(diǎn)實(shí)驗(yàn)室;
【基金】：國(guó)家自然科學(xué)基金(41302115) 四川省教育廳重點(diǎn)項(xiàng)目(16ZA0089) 成都理工大學(xué)校級(jí)科研團(tuán)隊(duì)資助項(xiàng)目(KYTD201401);成都理工大學(xué)中青年骨干教師培養(yǎng)計(jì)劃項(xiàng)目(JXGG201403)
【分類號(hào)】：TE311

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