本文關鍵詞： 準噶爾盆地 石東地區(qū) 斷裂特征 斷裂識別方法 圈閉識別　出處：《西南石油大學》2015年碩士論文　論文類型：學位論文

【摘要】：石東地區(qū)位于準噶爾盆地石西凸起中東段,緊鄰盆1井西富生烴凹陷,西南方向與億噸級石西油田相接。本論文在調研國內外研究的基礎上,采用了處理、解釋相結合的研究方式,保障了地震資料的品質。通過對地震資料解釋性處理和多種屬性相結合的方法,提高斷裂識別精度。并在此基礎上開展了構造精細解釋、斷裂特征研究及圈閉識別。取得以下主要成果和認識：1)石東地區(qū)主要經歷了三期重要演化：海西晚期構造反轉隆升,石東凸起形成雛形；燕山期持續(xù)繼承性隆升,形成一系列的拉張性斷層；喜山期,構造變形相對微弱。石東凸起現(xiàn)今表現(xiàn)為近北東向展布的鼻凸,自西向東整體抬高,凸起軸部局部發(fā)育斷鼻或斷塊型圈閉,斜坡區(qū)南緩北陡,局部發(fā)育低幅度構造。研究區(qū)中生界主要發(fā)育近東西向控凸主斷裂、北東向與主斷裂斜交的次級斷裂、北西向展布且延伸較長的晚期斷裂三組。2)油藏分析認為,清水河組具備“斷塊控藏,沿梁聚集”的特征,本論文圍繞鼻梁帶,結合微小斷裂的識別,整體落實斷塊型圈閉12個,面積約31km2。研究區(qū)中下侏羅統(tǒng)砂體規(guī)模發(fā)育,儲蓋關系良好,凸起主體部位西山窯組遭受剝蝕尖滅,結合斷裂精細刻畫,落實J2x斷層-地層圈閉5個,面積約31km2,落實下侏羅統(tǒng)斷塊圈閉4個,串層圈閉數8個,圈閉總面積約44.8 km2。
[Abstract]:Shidong area is located in the middle and east section of Shixi uplift in Junggar Basin, adjacent to the basin 1 well Xixi rich hydrocarbon sag, and the southwest direction is connected with the 100 million ton Shixi oil field. Based on the investigation and research at home and abroad, this paper adopts the treatment. The combination of interpretation and interpretation ensures the quality of seismic data. The accuracy of fault identification is improved by combining the interpretation of seismic data with a variety of attributes. On this basis, the fine interpretation of structures is carried out. The study of fault characteristics and trap identification. The main achievements and understanding of the Shidong area are as follows: the late Hercynian tectonic reverse uplift, the embryonic form of Shidong uplift, the Yanshanian continuous inherited uplift, the late Hercynian tectonic reverse uplift, the Yenshanian continuous succession uplift, the late Hercynian tectonic inversion uplift, A series of extensional faults were formed; during the Himalayan period, the tectonic deformation was relatively weak. The slope area is steeper in the south and north, and the low-amplitude structure is developed locally. The Mesozoic main faults in the study area are mainly composed of the main faults in the near east-west direction and the secondary faults which are inclined to the main faults in the north-east direction. The reservoir analysis of late fault group. 2), which is extended in NW direction, shows that Qingshuihe formation has the characteristics of "fault block controlling reservoir, gathering along beam". This paper revolves around nose beam zone, combined with the recognition of small fault, and implements 12 fault block traps as a whole. The area of the study area is about 31km2. The sand body of the middle and lower Jurassic in the study area has developed in scale, the relationship between reservoir and cover is good, the Xishanyao formation in the main part of the uplift has been destroyed by denudation, combined with the fine description of the fault, 5 J2x fault-stratigraphic traps have been implemented. The area is about 31km2, 4 traps of Lower Jurassic fault block, 8 traps of series layer, and the total area of trap is about 44.8 km2.
【學位授予單位】：西南石油大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P618.13

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