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B38斷塊精細油藏描述

發(fā)布時間:2018-03-19 03:35

  本文選題:復(fù)雜斷塊 切入點:精細油藏描述 出處:《燕山大學(xué)》2015年碩士論文 論文類型:學(xué)位論文


【摘要】:B38斷塊是近幾年華北油田的重點勘探區(qū)域,也是油藏評價上報探明儲量和產(chǎn)能建設(shè)的重點區(qū)塊。通過近幾年的勘探開發(fā)實踐表明,B38斷塊構(gòu)造破碎、儲層縱橫向變化大,屬于復(fù)雜斷塊油藏。由于復(fù)雜斷塊油藏具有斷層數(shù)量多,斷塊規(guī)模小,構(gòu)造面貌破碎的特點,傳統(tǒng)的油藏描述方法和精度遠不能滿足這個階段的開發(fā)要求。本文以B38復(fù)雜斷塊為例,采用精細油藏描述為主要研究方法。在細分單砂層的基礎(chǔ)上,使用了多種學(xué)科理論與技術(shù),例如現(xiàn)代地層學(xué)、沉積相研究技術(shù)、儲層砂體描述技術(shù)、相控建模技術(shù)及油藏潛力分析技術(shù)等。針對B38復(fù)雜斷層油藏的地質(zhì)特征、開發(fā)現(xiàn)狀及存在的問題,多學(xué)科結(jié)合,對研究區(qū)儲層進行了深入細致的分析研究。在已有認識的基礎(chǔ)上,對研究區(qū)重新劃分了地層,在目標層段確定了26個單砂層。本次論文的研究,建立在單砂層的基礎(chǔ)上,在分析了區(qū)域沉積背景的前提下,根據(jù)沉積相標志,對沉積微相的類型及特征進行了分析研究。同時,對儲層基本物性、孔隙結(jié)構(gòu)特征及油藏分布特征進行了詳細的分析,利用容積法計算了B38斷塊的地質(zhì)儲量。根據(jù)儲層基本特征的研究成果,借助專業(yè)的地質(zhì)建模軟件,合理地處理了復(fù)雜斷層的連接關(guān)系。以沉積相作為控制條件,進行隨機建模,建立了B38斷塊的靜態(tài)三維地質(zhì)模型,使儲集層得到了更清晰直觀的認識。最終,針對目前開發(fā)現(xiàn)狀及問題,進行了油藏潛力分析與評價,并提出了提高挖潛能力的建議方案。
[Abstract]:B38 fault block is a key exploration area in Huabei Oilfield in recent years, and it is also a key block for reservoir evaluation to report proven reserves and productivity construction. Through the exploration and development practice in recent years, it is shown that the fault block Guanb38 has broken structure and changed greatly in vertical and horizontal direction. Because of the large number of faults, the small scale of fault blocks and the fragmentation of structural features, the complex fault-block reservoirs are characterized by large number of faults, small size of fault blocks, and fragmentation of structural features. The traditional reservoir description method and precision can not meet the requirements of this stage of development. This paper takes B38 complex fault block as an example and uses fine reservoir description as the main research method. Various theories and techniques are used, such as modern stratigraphy, sedimentary facies research, reservoir sand body description, facies control modeling and reservoir potential analysis, etc. The geological characteristics of B38 complex fault reservoir are analyzed. The present situation of development and the existing problems are analyzed and studied deeply and meticulously in the reservoir of the study area. On the basis of the existing knowledge, the strata of the study area are reclassified. 26 single sand layers have been determined in the target formation. Based on the single sand layer and the analysis of the regional sedimentary background, this paper is based on the sedimentary facies. The types and characteristics of sedimentary microfacies are analyzed. At the same time, the basic physical properties, pore structure characteristics and reservoir distribution characteristics are analyzed in detail. The geological reserves of B38 fault block are calculated by volume method. According to the research results of basic reservoir characteristics and with the help of professional geological modeling software, the connection relationship of complex faults is reasonably handled. The sedimentary facies is used as the control condition for stochastic modeling. The static 3D geological model of B38 fault block is established, which makes the reservoir know more clearly and intuitively. Finally, according to the present development situation and problems, the reservoir potential analysis and evaluation are carried out, and the proposal to improve the potential tapping ability is put forward.
【學(xué)位授予單位】:燕山大學(xué)
【學(xué)位級別】:碩士
【學(xué)位授予年份】:2015
【分類號】:P618.13

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