發(fā)布時(shí)間：2018-06-05 13:30

  本文選題：貝爾油田 + 南一段　； 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：貝爾油田構(gòu)造位置位于海拉爾盆地貝爾凹陷中部的貝中次凹南部,屬于復(fù)雜斷陷盆地,具有斷塊多、油藏類型多、含油層系多、儲(chǔ)層類型多、油品類型多、油藏埋藏深的地質(zhì)特點(diǎn)。已開發(fā)油田主要面臨的問題:一是多物源、多期次構(gòu)造運(yùn)動(dòng)導(dǎo)致標(biāo)志層不明顯,小層對(duì)比難;二是埋藏深、砂巖砂礫巖儲(chǔ)層交互等導(dǎo)致地震反射軸不明顯,小斷層解釋難;三是沉積類型多,相變快,沉積微相展布刻畫難。以地質(zhì)研究為主體,綜合應(yīng)用地質(zhì)、取心、測井、地震、巖心分析等資料,以高分辨率層序地層學(xué)、沉積學(xué)、構(gòu)造地質(zhì)學(xué),開發(fā)地質(zhì)學(xué)等多學(xué)科理論為指導(dǎo),在統(tǒng)一的地質(zhì)思路下進(jìn)行相互滲透的綜合性一體化研究,包括構(gòu)造精細(xì)解釋、小層劃分對(duì)比、沉積微相等研究。研究結(jié)果表明:采取“恢復(fù)沉積過程、追蹤層序界面、沉積旋回對(duì)比、確定缺失層段”的方法細(xì)分開發(fā)井的小層,完成了貝中油田南一段含油面積內(nèi)開發(fā)井的地層對(duì)比與劃分。井、震結(jié)合開展構(gòu)造精細(xì)解釋,運(yùn)用相干體、三色混相分頻等技術(shù)識(shí)別小斷層,采取“震控形態(tài)、井定位置、模型組合”的斷層組合方法進(jìn)行斷點(diǎn)組合和修正,提高了構(gòu)造解釋精度。確定貝爾油田南一段儲(chǔ)層為湖泊—扇三角洲沉積體系,具有多物源的特征,主力油層以扇三角洲前緣水下分流河道為主。
[Abstract]:The structural location of Beier oilfield is located in the southern part of Beizhong depression in the middle of Beier depression in Hailaer Basin. It is a complex faulted basin with many fault blocks, many reservoir types, many oil-bearing strata, many reservoir types and many oil types. The geological characteristics of the buried depth of the reservoir. The main problems faced by the developed oilfields are as follows: first, multi-source, multi-stage tectonic movement leads to the lack of marked layer, the small layer is difficult to contrast, the second is buried depth, sandstone sand gravel reservoir interaction and other causes seismic reflection axis is not obvious, small fault interpretation is difficult; Third, there are many sedimentary types, fast phase transition, and the distribution and characterization of sedimentary microfacies is difficult. Taking geological research as the main body, synthetically applying the data of geology, coring, logging, seismic and core analysis, and guided by the theories of high-resolution sequence stratigraphy, sedimentology, tectonic geology, development geology, etc. Under the unified geological thinking, the research on the integration of interpenetration, including fine interpretation of structure, stratigraphic division and correlation, and sedimentary microequality, is carried out. The results show that the method of "recovering sedimentary process, tracing sequence interface, sedimentary cycle correlation and determining missing interval" is adopted to subdivide the small layers of the development well, and to complete the formation correlation and division of the development well in the oil bearing area of the first member of Beizhong Oilfield. Well and earthquake combined with structural fine interpretation, using coherent volume, trichromatic misphase frequency separation and other techniques to identify small faults, adopting the method of "seismic control form, well fixed location, model combination" fault combination method for fracture point combination and correction, The accuracy of structural interpretation is improved. It is determined that the reservoir in the southern first member of Beier Oilfield is a lacustrine fan delta sedimentary system with the characteristics of multiple provenances and the main reservoir is dominated by subaqueous distributary channel in the front edge of fan delta.
【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：P618.13
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本文編號(hào)：1982149