發(fā)布時間：2018-05-14 14:01

  本文選題：稠油 + 空氣輔助蒸汽吞吐��； 參考：《東北石油大學(xué)》2015年碩士論文

【摘要】：冷M區(qū)塊為典型的稠油油藏,已進入蒸汽吞吐中后期。目前油田在開發(fā)過程中面臨油藏壓力水平低,供液能力差,層間矛盾和平面矛盾突出等問題,現(xiàn)有開發(fā)方式難以有效解決�？諝獬杀镜�,來源廣,對環(huán)境污染較小,此外還可以對原油起到改質(zhì)的作用。因此,針對冷M區(qū)塊蒸汽吞吐開發(fā)效果不理想的情況,開展空氣輔助蒸汽吞吐驅(qū)油研究具有非常重要的意義。本文通過研究,推導(dǎo)出了空氣輔助蒸汽吞吐過程中的油墻運動方程,從理論上論證了空氣輔助蒸汽吞吐的可能性。采用數(shù)值模擬方法,對比空氣輔助蒸汽吞吐與單純蒸汽吞吐的開發(fā)效果,確定驅(qū)油前后溫度場、壓力場、含油飽和度場的變化規(guī)律。對空氣輔助蒸汽吞吐的影響因素進行分析。分別研究滲透率、含油飽和度、注氣強度、注氣時機、注入方式對空氣輔助蒸汽吞吐驅(qū)油效果的影響,為空氣輔助蒸汽吞吐的方案設(shè)計提供依據(jù)。建立冷M區(qū)塊精細地質(zhì)模型和數(shù)值模擬模型,在蒸汽吞吐歷史擬合的基礎(chǔ)上,對冷M區(qū)塊空氣輔助蒸汽吞吐開采效果進行預(yù)測,為現(xiàn)場實施空氣輔助蒸汽吞吐提供一定技術(shù)支持和經(jīng)驗借鑒。預(yù)測結(jié)果表明:注入空氣輔助蒸汽吞吐較單純蒸汽吞吐可以提高采收率2-3個百分點。
[Abstract]:Leng M block is a typical heavy oil reservoir and has entered the middle and late stage of steam huff and puff. At present, the oilfield is faced with the problems of low reservoir pressure level, poor liquid supply capacity, outstanding contradiction between layers and plane contradictions, and the existing development methods are difficult to solve effectively. The air cost is low, the source is wide, the pollution to the environment is small, and it can also improve the quality of crude oil. Therefore, it is of great significance to study the air-assisted steam huff and puff flooding in Leng M block where the effect of steam huff and puff development is not satisfactory. In this paper, the equation of oil wall motion in the process of air-assisted steam huff and puff is derived, and the possibility of air-assisted steam huff and puff is proved theoretically. By means of numerical simulation, the development effect of air-assisted steam huff and puff is compared with that of pure steam huff and puff, and the variation rules of temperature field, pressure field and oil saturation field before and after displacement are determined. The influencing factors of air assisted steam huff and puff were analyzed. The effects of permeability, oil saturation, gas injection intensity, gas injection timing and injection mode on the oil displacement effect of air-assisted steam huff and puff are studied respectively, which provides the basis for the scheme design of air-assisted steam huff and puff. The fine geological model and numerical simulation model of cold M block are established. Based on the historical fitting of steam huff and puff, the effect of air-assisted steam huff and puff production in cold M block is predicted. To provide some technical support and experience for the implementation of air assisted steam huff and puff. The prediction results show that the injection of air assisted steam huff and puff can increase the recovery by 2-3 percentage points compared with the pure steam huff and puff.
【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】：2015
【分類號】：TE345

【參考文獻】

相關(guān)期刊論文 前2條

1 藺玉秋;楊純東;趙輝;姜淑春;鮑君剛;秦艷玲;;普通稠油蒸汽吞吐轉(zhuǎn)換開發(fā)方式優(yōu)化研究[J];中外能源;2007年03期

2 康志勇;張勇;;遼河油區(qū)計算稠油粘度通用方程[J];特種油氣藏;2005年06期

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本文編號：1888136