【作者】 胡慧婷；

【导师】 卢双舫；

【作者基本信息】 大庆石油学院 ， 矿产普查与勘探， 2009， 硕士

【摘要】 巴彦查干地区位于古龙凹陷中心及西部斜坡带上,发育三角洲前缘沉积和湖相沉积,区内在西高东低斜坡带上依次出现油—水—油条带分布,且开发区块沿条带呈串珠状跳跃分布,研究区东部—现今他拉哈向斜中心部位尚未投入开发且探井也很少,经研究发现研究区S0、S1油层组并未投入开发,区内这种复杂的油水分布状况,以及油气成藏主控因素研究不清的现状,制约着该区的进一步勘探与开发。因此本文以区域构造和沉积背景研究为基础,以高分辨率层序地层学为理论指导,结合地震、测井、录井等资料首先建立长垣以西地区二、三级基准面旋回地层格架,在全区等时对比的基础上,将研究区萨尔图油层细分为5个四级层序,33个六级层序,并编制了各六级基准面旋回层序平面相分布图,精细描述了各层沉积特征及变迁规律。在分析烃源岩生排烃情况、古构造发育史情况以及储集层、油气藏类型、生储盖组合等成藏条件后,认为该区逆牵引背斜构造及沉积微相类型是萨尔图油层的成藏主控因素,结合研究区油水分布特征对未开发区域及已开发区域提出首钻井和开发区扩边等建议;同时根据临区S0、S1成功勘探经历,及本区特殊构造发育特征,提出向斜含油的可能,以及已有井补孔的开发建议,为该区S0、S1勘探开发提供依据。更多还原

【Abstract】 Byanchagan is on the center of Gulong sag and the western slope, developing the front-delta deposition and lake sediments, there appears the oil - water - oil belt distribution on the slop belt which location shows west high east low, and the exploitation block shows the moniliform and leap distribution, now there were not many prospect well being used in the research area of Talaha syncline, we found that that the S0 and S1 formation were not being exploited, this complex distribute condition and controlling factor of reservoir genesis in the research area, are restricting the further exploration and the development. Therefore this article take the sedimentary-tectonic setting research as a foundation, using the high-resolution sequence stratigraphy as the theory instruction and seismic,logging data to establish the second and third base-level cycle sequence stratigraphic framework,under the isochronous comparison, divide Saertu oil formation into 5 four-stage sequences, 33 six-stage sequences, and establish distributing graph of each six-stage sequences, described each deposition characteristic and the vicissitude rule fine. After analysis the hydrocarbon generation and expulsion condition, paleo tectonic developing history , reservoir types and source-reservoir-cap assemblage,we think that the reverse drag anticline sedimentary micro facies model are the reservoir-forming main control factors in Saertu oil formation, combined with the suggestions to the undeveloped area and developed area of distribution characters of oil and water ; meanwhile according to the successful exploration experience of S0,S1 formation and special tectonic development features,we proposed the possibility of oil bearing in syncline, and suggestions of perforations adding to give a basis to exploration and development of S0,S1.更多还原