本文選題：油藏地質(zhì)建模 + 注烴氣驅(qū)��； 參考：《西南石油大學(xué)》2017年碩士論文

【摘要】：隨著21世紀(jì)能源問(wèn)題的日益凸顯,如何能夠降低成本并且有效的提高油田的采收率成為石油工作者關(guān)注的焦點(diǎn)。在現(xiàn)有的提高采收率技術(shù)中,注氣驅(qū)已經(jīng)發(fā)展成為其中最重要提高采收率手段之一。它已經(jīng)被推廣進(jìn)行工業(yè)化并且廣泛應(yīng)用于國(guó)內(nèi)外各大油田。為油田的增產(chǎn)提供了巨大的貢獻(xiàn)。我國(guó)目前新發(fā)現(xiàn)的油田主要為低滲油藏。事實(shí)證明,注氣技術(shù)已經(jīng)被成功的實(shí)踐于各種低滲透油藏,并且取得了很好的效果。隨著注氣提高采收率機(jī)理的不斷發(fā)展,可供選擇的注入氣體的種類也在不斷增多。本文受《鄯善油田注氣提高采收率技術(shù)研究》項(xiàng)目資助開(kāi)展研究,根據(jù)SSX油藏的實(shí)際情況,選擇注烴氣作為驅(qū)替研究其提高采收率效果。油氣藏?cái)?shù)值模擬技術(shù)是一種重要的研究提高采收率方法。而油藏地質(zhì)建模又是油藏?cái)?shù)值模擬的基礎(chǔ)。隨著該技術(shù)的不斷發(fā)展,要求地質(zhì)建模和數(shù)值模擬一體化發(fā)展,即通過(guò)建立該油藏的數(shù)據(jù)庫(kù),規(guī)范在建模和數(shù)模過(guò)程當(dāng)中的數(shù)據(jù)使用標(biāo)準(zhǔn),從而使研究該油藏提高采收率的過(guò)程一體化,提高工作效率。我們?cè)谟筒氐膶?shí)際地質(zhì)情況的基礎(chǔ)之上選用petrel軟件對(duì)該油藏進(jìn)行了三維地質(zhì)建模,核算了實(shí)際的地質(zhì)儲(chǔ)量為1525.4×104t。分析了各個(gè)小層的儲(chǔ)量分布情況,S2小層儲(chǔ)量的豐度最大。在該油藏的地質(zhì)模型的基礎(chǔ)之上,選用了 Eclipse的組分模型,進(jìn)行了數(shù)值模擬研究。開(kāi)展了 PVT的擬合、細(xì)管實(shí)驗(yàn)的擬合、長(zhǎng)巖心驅(qū)替實(shí)驗(yàn)的擬合、歷史擬合研究。選擇了注氣范圍,其原始原油地質(zhì)儲(chǔ)量398.56×104t。注烴氣工程參數(shù)優(yōu)化的結(jié)果是:①建議選擇上部層位(S1+S2)連續(xù)注烴氣;②建議選擇平均單井注氣量為2.00× 104m3/d進(jìn)行連續(xù)注烴氣;③建議選擇地層壓力水平保持在24MPa左右進(jìn)行連續(xù)注烴氣;④建議控制"氣竄氣油比"應(yīng)選擇3500m3/m3;⑤建議選擇交替周期長(zhǎng)度為6月:6月進(jìn)行烴氣/水交替注入;⑥建議選擇段塞數(shù)目為12個(gè)進(jìn)行烴氣/水交替注氣方式;⑦建議選擇段塞尺寸比為1:1進(jìn)行烴氣/水交替注入。
[Abstract]:With the increasingly prominent energy problem in the 21st century, how to reduce the cost and effectively improve the oil recovery has become the focus of petroleum workers. Gas injection flooding has become one of the most important means to improve oil recovery. It has been popularized for industrialization and widely used in various oil fields at home and abroad. It has made a great contribution to the production increase of the oil field. At present, the newly discovered oil fields in China are mainly low permeability reservoirs. It has been proved that gas injection technology has been successfully applied in various low permeability reservoirs and has achieved good results. With the development of the mechanism of enhanced recovery by gas injection, the kinds of injectable gases available for selection are increasing. According to the actual situation of SSX reservoir, the hydrocarbon injection gas is selected as the displacement to study the effect of improving oil recovery. Numerical simulation of oil and gas reservoir is an important method to improve oil recovery. Reservoir geological modeling is the foundation of reservoir numerical simulation. With the continuous development of this technology, the integration of geological modeling and numerical simulation is required, that is, by establishing the database of the reservoir, the standard for the use of data in the process of modeling and mathematical modeling is standardized. Thus, the process of improving oil recovery in this reservoir is integrated and the working efficiency is improved. On the basis of the actual geological conditions of the reservoir, we selected petrel software to carry out 3D geological modeling of the reservoir, and calculated the actual geological reserves of 1525.4 脳 10 ~ (4) t. The reserve distribution of each layer is analyzed. Based on the geological model of the reservoir, the component model of Eclipse is selected and the numerical simulation is carried out. The PVT fitting, the pipe experiment fitting, the long core displacement experiment fitting and the historical fitting research are carried out. The range of gas injection is selected, and the original crude oil geological reserves are 398.56 脳 10 ~ 4 t. The result of optimization of hydrocarbon-injection engineering parameters is that the upper layer is suggested to be selected as S _ 1 S _ 2) continuous hydrocarbon injection gas should be selected for continuous hydrocarbon injection with an average single well gas injection rate of 2.00 脳 104m3/d. (3) it is suggested to select the formation pressure level about 24MPa for continuous hydrocarbon injection / gas injection and to control the "gas channeling gas / oil ratio". It is suggested that the alternative cycle length of 3500m3 / m3 / m3 should be chosen as June: hydrocarbon gas / water injection should be carried out alternately in June; (6) it is suggested that the number of slug should be 12 for hydrocarbon gas / water alternated gas injection. 7. It is suggested to select the slug size ratio of 1:1 for hydrocarbon gas / water alternant injection.
【學(xué)位授予單位】：西南石油大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：TE357.7

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1 宋亮;SSX油藏注烴氣提高采收率數(shù)值模擬預(yù)測(cè)[D];西南石油大學(xué);2017年

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本文編號(hào)：1787965