發(fā)布時間：2018-09-04 08:00

【摘要】：針對已有的水驅(qū)相似準(zhǔn)則體系,引入敏感因子,利用數(shù)值模擬方法研究各相似參數(shù)的敏感性,確定相似參數(shù)的主要敏感因子介于10-1~101。結(jié)合油藏實際情況,設(shè)計了滿足幾何相似、運動相似和動力相似的重力占優(yōu)和黏滯力占優(yōu)物理模型及水驅(qū)油模擬實驗,研究了不同驅(qū)動力占優(yōu)條件下的油藏水驅(qū)開發(fā)特征及剩余油分布特征,為挖潛方向提供指導(dǎo)。模擬實驗結(jié)果表明:黏滯力占優(yōu)模型前期含水上升速度快,含水率曲線呈"廠"字形,指進(jìn)現(xiàn)象較嚴(yán)重,但總體上波及程度較高,采出程度較高;重力占優(yōu)模型前期含水上升較慢,注水后含水快速上升,頂部富集剩余油,后期開發(fā)潛力較大。
[Abstract]:According to the existing similarity criterion system of water drive, the sensitivity factor is introduced, and the sensitivity of the similar parameters is studied by numerical simulation method, and the main sensitive factors of the similar parameters are determined to be between 10 ~ (-1) and 101 ~ (-1). Combined with the actual situation of the reservoir, the physical model of gravity dominance and viscous force dominance and the simulation experiment of water drive oil are designed to satisfy the geometric similarity, motion similarity and dynamic similarity. The characteristics of reservoir water drive development and remaining oil distribution under different driving forces are studied in order to provide guidance for tapping potential. The simulation results show that the water content rises rapidly in the early stage of the model, the water content curve is "factory" shape, the fingering phenomenon is serious, but the sweep degree is higher and the extraction degree is higher; The water cut rises slowly in the early stage of gravity dominant model, increases rapidly after water injection, enriches the remaining oil at the top, and has great development potential in the later stage.
【作者單位】： 中國石油大學(xué)(北京)石油工程學(xué)院;中國石油勘探開發(fā)研究院;
【基金】：國家自然科學(xué)基金項目“復(fù)雜裂縫潛山油藏水平井堵水封堵機理研究”(51404280)
【分類號】：TE341
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本文編號：2221482