榆樹林油田樹123區(qū)塊扶楊油層儲層砂體預測研究
發(fā)布時間:2018-04-14 14:31
本文選題:榆樹林油田 + 扶楊油層; 參考:《東北石油大學》2017年碩士論文
【摘要】:大慶榆樹林油田扶楊油層沉積過程發(fā)育多期河道砂體,其呈狹窄條帶狀相互疊置且區(qū)域相變快,這些復雜的沉積特征制約著油田的開發(fā)。如何進行儲層預測、提高預測精度客觀合理的確定砂體分布一直是在科研生產中面臨的主要問題,直接影響著油田下一部的勘探開發(fā)。本文在對樹123區(qū)塊沉積、構造分析的基礎上,應用地震屬性提取、地質統(tǒng)計學反演對扶楊油層進行砂體級別的儲層預測。得到成果和認識如下:通過開展井震聯(lián)合統(tǒng)層,建立等時地層格架,扶楊油層自上到下分別劃分了6個油層組,即FⅠ、FⅡ、FⅢ、YⅠ、YⅡ、YⅢ組,38個小層。樹123區(qū)塊扶楊油層存在“東高西低,北高南低”的構造形式。同時研究區(qū)整體斷層發(fā)育,目的層內部從下至上,斷裂繼承性發(fā)育的較好,斷層系內大型斷層以南北向發(fā)育為主,小型斷層以東西向為主。對研究區(qū)進行沉積相分析認識到,物源主要來源于北東方向,發(fā)育河流-三角洲體系。密井網區(qū)利用測井數據,稀井區(qū)利用地震儲層預測結果,對研究區(qū)平面沉積微相展布進行研究。最終在沉積相約束下,利用反演結果,對含油小層的砂體進行刻畫。認為在構造及沉積背景的影響下,研究區(qū)砂體多呈南北、北東向條帶狀或塊狀展布。其分布特征為尋找油氣富集有利區(qū)提供有利依據。
[Abstract]:The depositional process of Fuyang reservoir in Daqing Yushulin Oilfield is characterized by multi-stage channel sand body, which is a narrow strip superimposed on each other, and the regional phase transition is fast. These complex sedimentary characteristics restrict the development of the oil field.How to predict reservoir and determine the distribution of sand body objectively and reasonably is always the main problem in scientific research and production, which directly affects the exploration and development of the next oil field.On the basis of sedimentary and structural analysis of block Shu123, this paper uses seismic attribute extraction and geostatistical inversion to predict reservoir level of sand body in Fuyang oil reservoir.The results and understandings are as follows: through the development of the combined well and earthquake formation and the establishment of isochronous stratigraphic framework, Fuyang oil layer is divided into 6 reservoirs from top to bottom, namely F 鈪,
本文編號:1749758
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