Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Shaanxi University of Technology(Natural Science Edition)》 2018-02
Add to Favorite Get Latest Update

Application of entropy weight fuzzy comprehensive evaluation to reservoir evaluation

GUO Xiao-lei;GONG Hu-jun;Department of Geology,Northwest University;  
In view of the diversity and complexity of the factors affecting the reservoir,this paper puts forward the method of combining the information entropy weight method with the fuzzy comprehensive evaluation to quantitatively evaluate the reservoir,and apply this method to the evaluation of the Chang 4 + 5 reservoir in LS oilfield. Using the basic principle of fuzzy comprehensive evaluation method,the high-pressure mercury parameters of the 10 samples of Chang 4 + 5 reservoir in the study area were analyzed,and 5 parameters of porosity,permeability,displacement pressure,pore throat and separation coefficient were selected as the evaluation factor set. The weights of each evaluation factor are determined by using the information entropy weight method,which makes the evaluation result more practical. The results show that the results of fuzzy comprehensive evaluation are in good agreement with oil testing results. The main reservoir of Chang 4 + 5 isⅡ type and Ⅲ reservoir in the study area,and the production of Chang 4 + 5 reservoir test well has great potential for development. It shows that it is reliable and feasible to evaluate the reservoir by this method and it can be applied to the evaluation of other reservoirs.
【Fund】: 企、事业单位委托课题研究项目(ycsy2016ky-C-03-05)
【CateGory Index】: P618.13
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved