【摘要】：對(duì)于有強(qiáng)邊底水能量的油藏來(lái)說(shuō),油水關(guān)系復(fù)雜,一般情況下不具有統(tǒng)一油水界面,邊底水的竄進(jìn)將嚴(yán)重影響油井的產(chǎn)能以及生產(chǎn)的穩(wěn)定性。油井開(kāi)發(fā)初期,通過(guò)有限的鉆井等資料全面認(rèn)識(shí)油藏有一定的困難,而準(zhǔn)確獲得該類(lèi)油藏的儲(chǔ)層參數(shù)、水體體積、水侵指數(shù)及水侵量是合理開(kāi)發(fā)此類(lèi)油藏的關(guān)鍵�；贐lasingame現(xiàn)代產(chǎn)能遞減分析方法,利用擬穩(wěn)態(tài)水侵模型,推導(dǎo)油藏?cái)M穩(wěn)態(tài)水侵情況下儲(chǔ)層參數(shù)評(píng)價(jià)方法,用于計(jì)算水侵量、水體體積、水侵指數(shù)、動(dòng)態(tài)儲(chǔ)量以及各儲(chǔ)層參數(shù)。該方法首先將油井生產(chǎn)階段劃分為未水侵期、水侵初期及水侵中后期,然后通過(guò)未水侵期油井生產(chǎn)動(dòng)態(tài)數(shù)據(jù)擬合Blasingame典型曲線(xiàn)進(jìn)行動(dòng)態(tài)儲(chǔ)量、儲(chǔ)層參數(shù)等評(píng)價(jià),通過(guò)水侵初期油井生產(chǎn)動(dòng)態(tài)數(shù)據(jù)擬合進(jìn)行水體體積、水侵量和水侵指數(shù)的定量評(píng)價(jià)。對(duì)比數(shù)值模擬概念模型生產(chǎn)動(dòng)態(tài)數(shù)據(jù)和運(yùn)用所建方法擬合求解結(jié)果可知,動(dòng)態(tài)儲(chǔ)量誤差為-3.31%,滲透率誤差為2.60%,水體體積誤差為-2.5%,新建方法擬合結(jié)果誤差在可以接受的范圍內(nèi),不會(huì)對(duì)開(kāi)發(fā)方式的制定造成嚴(yán)重影響。
[Abstract]:For reservoirs with strong edge and bottom water energy, the relationship between oil and water is complex, and generally there is no unified oil-water interface. The breakthrough of edge and bottom water will seriously affect the productivity and production stability of oil wells. In the early stage of oil well development, it is difficult to fully understand the reservoir through limited drilling data, but the key to reasonable development of this kind of reservoir is to accurately obtain the reservoir parameters, water body volume, water invasion index and water invasion rate. Based on the modern productivity decline analysis method of Blasingame, the evaluation method of reservoir parameters under quasi-steady water invasion is derived by using quasi-steady water invasion model, which can be used to calculate water invasion, water volume, water invasion index, dynamic reserves and reservoir parameters. In this method, the production stage of oil well is divided into three stages: no water invasion period, water invasion stage and middle and late stage of water invasion. Then the typical Blasingame curve is fitted to evaluate the dynamic reserves, reservoir parameters and so on. The quantitative evaluation of water volume, water invasion volume and water invasion index was carried out by fitting the production performance data of oil wells in the early stage of water invasion. Comparing with the production dynamic data of the numerical simulation conceptual model and fitting the solution with the established method, it can be seen that the dynamic reserve error is -3.31, the permeability error is 2.60, the water volume error is -2.5, and the error of the new method is acceptable. Will not have a serious impact on the development of the development approach.
【作者單位】： 中國(guó)地質(zhì)大學(xué)(北京)能源學(xué)院;中國(guó)石油勘探開(kāi)發(fā)研究院油氣田開(kāi)發(fā)所;
【基金】：國(guó)家科技重大專(zhuān)項(xiàng)“超高壓有水氣藏高效開(kāi)發(fā)技術(shù)”(2016ZX05015-002)和“稠油、碳酸鹽巖和致密油藏開(kāi)發(fā)主體技術(shù)與應(yīng)用潛力”(2016ZX05016-006)
【分類(lèi)號(hào)】：TE34

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