本文選題：測井評價烴源巖 + 資源潛力��； 參考：《東北石油大學》2017年碩士論文

【摘要】：阿爾凹陷位于中國與內(nèi)蒙古邊界附近,構(gòu)造上隸屬于二連盆地巴音寶力格東北部隆起區(qū)。凹陷發(fā)育騰一段和阿爾善組兩套湖相烴源巖層。資源潛力評價是一個阿爾凹陷進行深化勘探的基石,發(fā)現(xiàn)后備資源,落實儲量,是勘探面臨的問題;開展資源潛力評價,落實勘探潛力,明確油氣的運聚方向,能為圈閉目標落實提供依據(jù),具有非常重要的意義。本文基于阿爾凹陷已有的地球化學分析化驗、較為系統(tǒng)的測井資料和其他構(gòu)造、地層、儲層、圈閉和油藏資料,通過應(yīng)用測井烴源巖評價和盆地模擬、資源評價技術(shù),對該凹陷進行了詳盡的烴源巖評價;分析了油氣的運聚特征,定量地模擬生、排烴量,計算了凹陷油氣資源量;明確了各構(gòu)造帶的剩余資源潛力,指出下步的主要勘探潛力區(qū)。通過使用測井-有機地化一體化評價流程與體系,有效地開展了烴源巖單井評價,借助層序地層學研究成果,分析了烴源巖平面的展布特征。分析研究表明:阿爾凹陷騰一段烴源巖以中等-優(yōu)質(zhì)烴源巖為主,阿爾善組烴源巖以中等-差烴源巖為主;阿爾善組優(yōu)質(zhì)烴源巖厚度50-100m,在南部的罕烏拉和哈達構(gòu)造帶處較大,最大厚度可以達到100m;騰一段優(yōu)質(zhì)烴源巖厚度50-300m,在南部的罕烏拉-沙麥構(gòu)造帶處較大,最大可以達到300m;騰一段優(yōu)質(zhì)烴源巖比阿爾善組優(yōu)質(zhì)烴源巖厚度大、分布面積更廣。根據(jù)地化分析結(jié)果,確定了騰一段烴源巖為Ⅰ-Ⅱ1型,阿爾善組為Ⅱ1-Ⅱ2型。根據(jù)鏡質(zhì)體反射率確定了凹陷的生烴門限,騰一段、阿爾善組烴源巖都為成熟生油巖。盆地模擬的關(guān)鍵是參數(shù)的選擇,地史、生烴史等參數(shù),是依據(jù)實測的多數(shù)據(jù)點,反復(fù)擬合確定的。利用盆地模擬、資源評價方法,確定了阿爾凹陷油氣資源量,總資源量為10251×104t(騰一段資源量為6057×104t,阿爾善組資源量為4194×104t)。凹陷生油量為11.39×108t,騰一段生油量的貢獻率為60%,阿爾善組生油量的貢獻率為40%;優(yōu)質(zhì)烴源巖生油量的貢獻率為84%,為烴源巖生油量的主要貢獻者;騰一段優(yōu)質(zhì)烴源巖為主力供烴層系。根據(jù)盆地模擬、成藏模擬技術(shù)和綜合地質(zhì)評價,認為阿爾凹陷的勘探潛力區(qū)是:阿爾善組現(xiàn)今時期北部油勢運聚方向在哈達構(gòu)造中心處,向哈達北構(gòu)造、AE1井區(qū)處、AD2井區(qū)處聚集;中部油勢運聚方向從哈達構(gòu)造和沙麥構(gòu)造中心處朝四周發(fā)散,南部油勢運聚方向朝罕烏拉處聚集。騰一段現(xiàn)今時期北部油勢運聚方向在哈達中心處朝哈達北、AE1井處、AD2井處聚集;中部油勢運聚方向在沙麥構(gòu)造處及AE63下部聚集;南部油勢運聚方向朝罕烏拉處聚集。通過成藏模擬顯示,沙麥構(gòu)造帶、哈達構(gòu)造帶聚集有較大資源量。
[Abstract]:Ar Sag is located near the boundary between China and Inner Mongolia and belongs to the northeast uplift of Bayinbaolag in Erlian Basin. There are two sets of lacustrine source rocks in Tengyi formation and Alshan formation in the sag. The evaluation of resource potential is the cornerstone of deepening exploration in an Al sag, the discovery of reserve resources and the implementation of reserves are the problems facing exploration, and the evaluation of resource potential, the implementation of exploration potential, and the direction of oil and gas migration and accumulation are carried out. It is of great significance to provide the basis for the implementation of the trap target. This paper is based on geochemical analysis, systematic logging data and other structural, stratigraphic, reservoir, trap and reservoir data in Al Sag, and the application of logging source rock evaluation and basin simulation, as well as resource evaluation techniques. The hydrocarbon source rocks in the sag are evaluated in detail, the migration and accumulation characteristics of oil and gas are analyzed, the quantity of hydrocarbon generation and hydrocarbon expulsion is quantitatively simulated, the amount of oil and gas resources in the sag is calculated, the potential of remaining resources in each structural zone is defined, and the main exploration potential areas in the next step are pointed out. By using the integrated evaluation process and system of logging and organic geochemistry, the single well evaluation of source rock is carried out effectively, and the distribution characteristics of hydrocarbon source rock plane are analyzed with the help of sequence stratigraphic research results. The results show that the source rocks of the Tengyi member in the Al Sag are mainly medium-quality source rocks, the source rocks of the Alshan formation are mainly intermediate-differential source rocks, the thickness of the high-quality source rocks of the Alshan formation is 50-100 m, which is relatively large in the southern Hanwula and Hada structural zones. The maximum thickness can reach 100 m, and the thickness of high quality source rocks in Tengyi formation is 50-300 m, which is larger than that in the southern Hanwula-Shamai structural zone, and the thickness and distribution area of the high quality source rocks in the first section is larger than that of the high-quality source rocks in the Alshan formation. Based on the results of geochemistry analysis, it is determined that the source rocks of the Tengyi formation belong to type 鈪，

本文編號：2051672