本文選題：縫洞型油藏 + 生產(chǎn)動態(tài)分析�。� 參考：《斷塊油氣田》2017年02期

【摘要】：縫洞型碳酸鹽巖油藏儲集體類型多樣,非均質(zhì)性極強,且流動規(guī)律復雜,有效評價此類油藏的井控儲量是調(diào)整油田開發(fā)方案、制定油井改造措施的基礎(chǔ)。為了克服常規(guī)方法在計算此類油藏井控儲量上的不足,文中提出了基于PDA方法的縫洞型油藏井控儲量評價方法。該方法針對縫洞型油藏的特點,建立了地質(zhì)靜態(tài)特征與開發(fā)動態(tài)特征相結(jié)合的生產(chǎn)井類型劃分標準,對不同類型井進行地質(zhì)概念特征與流體流動模式的假設(shè),利用PDA方法擬合多條典型曲線,通過井底流壓的折算、井控范圍的修正與擬穩(wěn)態(tài)條件下PVT的計算提高曲線擬合精度,形成了縫洞型油藏井控儲量的評價流程。研究結(jié)果表明,基于該方法評價的井控儲量與實際認識相符,研究區(qū)剩余可采儲量主要存在于Ⅰ,Ⅱ類井鉆遇區(qū),存在形式以洞頂剩余油為主,這些剩余可采儲量是進一步調(diào)整挖潛的目標。
[Abstract]:The reservoir types of fractured and cavernous carbonate reservoirs are various, heterogeneity is very strong, and the flow law is complex. The effective evaluation of well control reserves of this kind of reservoirs is the basis for adjusting the development plan of oil fields and formulating the measures for oil well transformation. In order to overcome the deficiency of conventional method in calculating well controlled reserves of this kind of reservoirs, a method for evaluating well controlled reserves of fractured and cavernous reservoirs based on PDA method is put forward in this paper. According to the characteristics of fracture-cavernous reservoir, this method establishes the classification standard of production well type combining geological static characteristics and development dynamic characteristics, and hypothesizes of geological concept characteristics and fluid flow model for different types of wells. By using PDA method to fit several typical curves, through the conversion of bottom hole flow pressure, the modification of well control range and the calculation of PVT under quasi steady state condition, the curve fitting accuracy is improved, and the evaluation flow of well control reserves in fractured and cavernous reservoirs is formed. The results show that the well control reserves evaluated by this method are consistent with the actual knowledge. The remaining recoverable reserves in the study area mainly exist in the drilling areas of type 鈪，

本文編號：1988881