本文選題：濟(jì)陽(yáng)坳陷 + 惠民凹陷��； 參考：《新疆石油地質(zhì)》2017年02期

【摘要】：通過對(duì)臨南洼陷江家店地區(qū)10余口井的70余塊樣品的鑄體薄片分析、流體包裹體特征總結(jié)及顯微測(cè)溫,揭示了沙河街組沙三下亞段儲(chǔ)集層在埋藏過程中,經(jīng)歷了多期次的酸堿流體演化及油氣充注:距今43.7×10~6—37.0×10~6a,地層流體呈弱堿性,成巖作用以壓實(shí)作用為主,并發(fā)育少量早期黃鐵礦膠結(jié)物;距今37.0×10~6—28.2×10~6a,有機(jī)質(zhì)熱演化導(dǎo)致地層流體呈酸性,發(fā)生長(zhǎng)石的溶蝕及石英的Ⅰ期次生加大現(xiàn)象;距今28.2×10~6—24.~6×10~6a,有機(jī)酸開始脫羧,沙四下亞段的石膏層開始脫水,地層水變?yōu)閴A性,發(fā)生石英溶解及碳酸鹽礦物的膠結(jié)現(xiàn)象;距今24.~6×10~6—14.0×10~6a,有機(jī)質(zhì)熱演化使地層水持續(xù)呈酸性,發(fā)生長(zhǎng)石、碳酸鹽膠結(jié)物的溶蝕及石英的Ⅱ期次生加大現(xiàn)象;距今14.0×10~6—2.8×10~6a,烴源巖再次演化生烴,地層水持續(xù)呈酸性;2.8×10~6a至現(xiàn)今,地層水呈弱堿性,發(fā)育少量的晚期黃鐵礦膠結(jié)物。
[Abstract]:Through the analysis of casting thin slices of more than 70 samples from more than 10 wells in Jiangjiadian area of Linnan sag, the characteristics of fluid inclusions and microthermometry, it is revealed that the reservoir of the lower member of Shahejie formation is buried in the process of burial. After several periods of acid-base fluid evolution and hydrocarbon filling: 43.7 脳 106-37.0 脳 10 ~ (6) a, the formation fluid is weak alkaline, diagenesis is mainly compaction, and a small amount of early pyrite cementation is developed. 37.0 脳 10 ~ (-1) 脳 10 ~ (6) ~ (6) 脳 10 ~ (2) 脳 10 ~ (6) 脳 10 ~ (6) a, thermal evolution of organic matter resulted in acidic formation fluid, dissolution of feldspar and secondary increase of quartz in stage 鈪，

本文編號(hào)：1981143