本文選題：油藏描述 + 測井處理��； 參考：《東北石油大學(xué)》2017年碩士論文

【摘要】：車城油田屬于中孔低滲透巖性構(gòu)造油藏,構(gòu)造復(fù)雜,單井鉆遇油層多,含油砂體范圍小,自投入開發(fā)以來,逐漸暴露出地層能量不足,產(chǎn)量遞減快,注采矛盾較為突出,注水開發(fā)難度大等問題,嚴(yán)重影響了油田的開發(fā)水平和效果。雖然多年來對各油田構(gòu)造、儲層進(jìn)行了深化研究,但缺乏整體的認(rèn)識及綜合研究方法的總結(jié)。針對上述問題,本文以沉積學(xué)、石油地質(zhì)學(xué)、儲層地質(zhì)學(xué)、測井地質(zhì)學(xué)、油藏精細(xì)描述等理論為基礎(chǔ),結(jié)合沙河街組油藏開發(fā)初期的研究成果,以井-震結(jié)合為手段,對研究區(qū)進(jìn)行了小層的精細(xì)劃分對比和構(gòu)造精細(xì)解釋;巖心觀察、測井相分析、沉積相對比剖面相結(jié)合,開展沉積相及沉積微相研究;采用三維建模技術(shù),建立油藏地質(zhì)模型和屬性模型,深化油藏認(rèn)識。通過井震結(jié)合,在充分落實(shí)構(gòu)造基礎(chǔ)上,對油田110口井進(jìn)行油組、小層重新進(jìn)行統(tǒng)一的細(xì)分對比和調(diào)整,細(xì)分單砂體,落實(shí)油藏的儲量規(guī)模;對主力含油砂體進(jìn)行沉積相研究,精細(xì)描述砂體的分布規(guī)律及沉積相變化特征;在小層精細(xì)對比以及對本區(qū)構(gòu)造、沉積微相研究的基礎(chǔ)上,綜合地質(zhì)、測井和油藏動(dòng)態(tài)多種信息資料,建立研究區(qū)三維可視化地質(zhì)模型和屬性模型。本文通過對沙河街組油藏的精細(xì)描述研究,確定有效砂體的展布特征,明確油藏的儲量規(guī)模;確定研究區(qū)儲層沉積相類型為近岸濱淺湖沉積,沉積微相為近岸灘壩微相、灘砂微相、湖相泥坪沉積;通過建立三維可視化地質(zhì)模型和屬性模型,不僅深化了對油層剩余油形成方式及分布規(guī)律的認(rèn)識,并確定了對應(yīng)的挖潛對策,對指導(dǎo)復(fù)雜斷塊油田的注水開發(fā)具有重要意義。
[Abstract]:City oilfield belongs to medium porosity low permeability lithologic structural reservoir, complex structure, single well drilling reservoir, oil sand body range is small, since has been in development, gradually exposed the formation energy shortage, rapid production decline, injection production contradiction is prominent, the problem of waterflood development. It has seriously affected the development of oil fields and levels the effect of each oil field for many years. Although the structure, reservoir are researched deeply, but the lack of overall understanding and comprehensive research methods. Aiming at the above problems, this paper based on sedimentology, petroleum geology, reservoir geology, logging geology, reservoir description and other theories, combining the research achievements of Shahe Street Group reservoir at the initial stage of development, with the combination of well and seismic methods, the small layer fine division and structural interpretation of the study area; core observation, logging facies analysis, sedimentary facies than section with sedimentary facies and carry out Study on sedimentary microfacies; three-dimensional modeling technology, establishing reservoir geological model and property model, deepening reservoir understanding. Through combination of well and seismic, fully implement the structural basis of oil group of 110 wells in the small, layer re subdivision and comparison and adjustment of unity, subdivision of the single sand body reserves, the implementation of reservoir study on phase; the main oil-bearing sandbody, phase change characteristics of the distribution and deposition of fine description of sand; in small layer contrast and structure in the area, based on the study of sedimentary microfacies, comprehensive geological, logging and reservoir dynamic variety of information, establish research area of 3D visualization of geological model and property model through the study of reservoir fine description of Shahe Street Group, to determine the distribution of effective sand body, clear reservoir reserves; determine the reservoir sedimentary facies for coastal lacustrine deposits, deposits Micro facies is the coastal beach bar microfacies, sand beach facies, lacustrine mudflat deposition; through the establishment of three-dimensional geological model and property model, not only to deepen the understanding of formation and distribution of remaining oil reservoir, and to determine the corresponding potential countermeasures, has important significance to guide the waterflood development of complex fault block oil Tian.

【學(xué)位授予單位】：東北石油大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：P618.13

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