本文選題：黑龍江東部 + 中生代��； 參考：《浙江大學》2015年碩士論文

【摘要】：黑龍江東部地區(qū)中生代盆地普遍富集煤炭資源,但對該區(qū)煤層氣等非常規(guī)油氣資源的富集規(guī)律還缺乏深入的研究。本文利用黑龍江東部地區(qū)近年來獲取的地震、測井、鉆井等勘探資料,以盆地構(gòu)造解析和演化史分析為基礎(chǔ),重點從盆地發(fā)育的構(gòu)造背景、成盆演化過程等方面,探討構(gòu)造因素對煤層氣成藏的重要控制作用,然后基于地理信息系統(tǒng)軟件Arcgis,運用多層次模糊綜合評價方法對煤層氣有利區(qū)進行了評價預(yù)測,取得如下幾點認識：1、黑龍江東部地區(qū)主要含煤盆地現(xiàn)今多表現(xiàn)為中生代構(gòu)造殘留盆地與新生代盆地的疊合特征,早白堊世時期受古太平洋板塊俯沖后撤的影響,研究區(qū)內(nèi)陸殼發(fā)生強烈的構(gòu)造伸展,形成斷陷盆地,控制了該區(qū)中生代聚煤盆地的形成。早白堊世末期大型淺水湖盆的為該區(qū)煤層廣泛發(fā)育和煤層氣的富集成藏奠定了物質(zhì)基礎(chǔ),晚白堊世以來的構(gòu)造擠壓變形和抬升剝蝕控制了當前煤層氣資源的分布、聚集成藏和保存。2、早白堊世城子河組和穆棱組沉積時期,黑龍江東部地區(qū)由早期的數(shù)個斷陷盆地合并發(fā)育為統(tǒng)一的大型淺水坳陷湖盆,區(qū)內(nèi)構(gòu)造條件穩(wěn)定,整體區(qū)域沉積穩(wěn)定,為黑龍江東部地區(qū)主要聚煤時期,其中河流-三角洲平原亞相和三角洲前緣亞相為聚煤作用的最有利沉積環(huán)境。3、晚白堊世期間遭受多期擠壓變形改造和抬升剝蝕,形成了現(xiàn)今孤立的殘留盆地特征,對煤層氣資源的分布和局部富集成藏產(chǎn)生了深刻的影響,是當前煤層氣富集成藏有利區(qū)評價中不可或缺的要素。4、綜合利用煤類、煤層厚度、沉積相、含氣量、構(gòu)造條件五個要素分析評價,認為鶴崗盆地新一-南山礦區(qū)和興安-大陸礦區(qū)、綏濱坳陷東南部、雞西盆地北部坳陷帶、勃利盆地東南部是煤層氣富集成藏最有利區(qū)域。
[Abstract]:Coal resources are generally enriched in Mesozoic basins in the eastern part of Heilongjiang Province, but there is a lack of in-depth study on the enrichment law of unconventional oil and gas resources such as coalbed methane in this area. Based on the seismic, logging and drilling data obtained in recent years in the eastern part of Heilongjiang Province, and based on the analysis of structural analysis and evolution history of the basin, this paper focuses on the tectonic background of the basin development and the evolution process of the basin. This paper discusses the important control effect of structural factors on coalbed methane reservoir formation, and then, based on Arcgis, a multi-level fuzzy comprehensive evaluation method is used to evaluate and predict the favorable area of coalbed methane. The main coal-bearing basins in the eastern part of Heilongjiang Province are characterized by the superposition of Mesozoic tectonic remnant basins and Cenozoic basins, and the early Cretaceous period is influenced by the subduction and retreat of the paleo-Pacific plate. The strong tectonic extension of the inland crust in the study area resulted in the formation of faulted basins, which controlled the formation of Mesozoic coal-accumulating basins. The large shallow water lake basin in the late early Cretaceous laid a material foundation for the extensive development of coal seam and the accumulation of coalbed methane in this area. The tectonic compression deformation and uplift denudation since the late Cretaceous controlled the distribution of the current coalbed methane resources. During the deposition period of early Cretaceous Chengzihe formation and Muling formation, the eastern part of Heilongjiang developed from several early faulted basins into a unified large shallow water depression lake basin. The tectonic conditions in the area were stable and the whole regional sedimentation was stable. It is the main coal accumulation period in the eastern part of Heilongjiang, in which fluvial delta plain subfacies and delta front subfacies are the most favorable sedimentary environment for coal accumulation. During the late Cretaceous period, they were subjected to multiple stages of compression deformation transformation and uplift and denudation. The present isolated residual basin features have a profound influence on the distribution of coalbed methane resources and local rich and integrated reservoirs, which are the indispensable elements in the evaluation of the favorable areas for coalbed methane rich and integrated reservoirs at present, and the comprehensive utilization of coal and the thickness of coal seams. Sedimentary facies, gas content and structural conditions are analyzed and evaluated. It is considered that Xinyi-Nanshan and Xingan-continental mining areas in Hegang basin, southeastern Suibin depression, northern depression belt of Jixi basin, The southeastern part of Boli Basin is the most favorable area for coalbed methane accumulation.
【學位授予單位】：浙江大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.13

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本文編號：1879935