本文選題：包裹體測(cè)溫　切入點(diǎn)：成藏期次　出處：《東北石油大學(xué)》2016年碩士論文　論文類型：學(xué)位論文

【摘要】：為進(jìn)一步明確柴達(dá)木盆地西部的成藏過(guò)程,在結(jié)合前人研究成果的基礎(chǔ)上和研究區(qū)域的地質(zhì)背景,充分利用錄井、測(cè)井和地化等相關(guān)地質(zhì)資料,選擇柴達(dá)木盆地西部?jī)蓚�(gè)典型油藏(紅柳泉和英東)進(jìn)行研究。本文采用包裹體測(cè)溫的手段確定成藏期次;在此基礎(chǔ)上,色譜質(zhì)譜分析、定量熒光分析等地質(zhì)分析技術(shù)手段與數(shù)值模擬相結(jié)合,確定柴達(dá)木盆地西部的成藏過(guò)程。實(shí)驗(yàn)結(jié)果表明:研究區(qū)發(fā)育黃色熒光包裹體和藍(lán)色熒光包裹體,對(duì)應(yīng)柴達(dá)木盆地西部地區(qū)兩期成藏;紅柳泉地區(qū)兩期包裹體的均一溫度分別為65.7℃和90.1℃,對(duì)應(yīng)的成藏時(shí)間為24Ma和4Ma;英東地區(qū)兩期包裹體的均一溫度分別為69.3℃和98.7℃,對(duì)應(yīng)的成藏時(shí)間為11Ma和4Ma。以成藏年代學(xué)理論為指導(dǎo),結(jié)合數(shù)值模擬和構(gòu)造演化史得到研究區(qū)的成藏過(guò)程。紅柳泉成藏過(guò)程:24Ma時(shí),圈閉初具形態(tài),黃色熒光烴類包裹體對(duì)應(yīng)的早期未熟油開始充注和聚集成藏。之后在N21沉積末期至N22沉積早期,由于構(gòu)造變動(dòng)導(dǎo)致圈閉大體形成,油氣沿?cái)嗔押蛢?chǔ)層裂縫向淺層運(yùn)移并且在淺層聚集。4Ma時(shí),隨著地層埋深增大,中部和西部地區(qū)因埋藏淺只會(huì)生成低熟油,東部埋深大的部分地區(qū)會(huì)生成大量低熟油和少量成熟油,原油先通過(guò)斷層和裂縫運(yùn)移至儲(chǔ)層,后因密度差而分異聚集,形成現(xiàn)今的紅柳泉油藏。英東成藏過(guò)程:11Ma時(shí),圈閉初具形態(tài),早期的未熟油開始運(yùn)聚成藏。后因喜山運(yùn)動(dòng)晚期的構(gòu)造變動(dòng)生成斷至地表的斷層而使原油散失。4Ma時(shí)期,隨著地層不斷的埋深,英東地區(qū)烴源巖進(jìn)一步演化,生成大量成熟油,在斷層輸導(dǎo)下,受浮力作用運(yùn)移至上干柴溝組地層的砂體中。隨著埋深加大,上油砂山組地層已具封閉能力,加之逆斷層的側(cè)向封閉能力好,使得原油聚集在此,形成現(xiàn)今的英東油藏。
[Abstract]:In order to further clarify the process of reservoir formation in the western Qaidam Basin, based on the previous research results and the geological background of the study area, the relevant geological data, such as logging, logging and geochemistry, are fully utilized. Two typical reservoirs (Hongliuquan and Yingdong) in the west of Qaidam Basin were selected to study. Quantitative fluorescence analysis and other geological analysis techniques combined with numerical simulation are used to determine the process of reservoir formation in the western Qaidam Basin. The experimental results show that yellow fluorescent inclusions and blue fluorescent inclusions are developed in the study area. The homogenization temperatures of the inclusions in the Hongliuquan area are 65.7 鈩，

本文編號(hào)：1622568