Full-Text Search:
Home|About CNKI|User Service|中文
Add to Favorite Get Latest Update

Behavior and Application of OYDH Profile Control and Oil Displacement Reagent for Oil Reservoir at High Temperature with High Salinity

Chen Dehong~1 Xin Aiyuan~1 Zhang Daisen~1 Qu Pingping~1 Shang Yanan~2 (1.Oil Production Technology Institute,Shengli Oil Field Branch Company,SINOPEC,Dongying 257000; 2.Electric Power Plant,Shengli Oil Field Branch Company,SINOPEC,Dongying 257000)  
For the phenomenon of channeling present in oil reservoir at high temperature with high salinity, study of profile control and oil displacement reagent suitable for the oil reservoir was carried out,thus OYDH as the profile control and oil displacement reagent was developed,which was composed of hydrophobic associating water-soluble polymer,cross-linking agent containing aromatic ring and initiator.The effects of pH of solution,temperature,water salinity,heating time at constant temperature and heterogeneous core on the behavior of the profile control and oil displacement reagent were examined.The result showed that the profile control and oil displacement reagent had excellent behavior in controllable gelling time,temperature resistance of 80~120℃and salinity tolerance of 7 000 mg/L,thermal stability,capability to significantly improve the core of the heterogeneity and good ability to flood oil.The profile control and oil displacement reagent was applied in Shengtuo Oilfield T142X23 for profile control.Average water content dropped to 92.4%from 93.9%,and oil production raised to 20.3 t/d from 16.6 t/d showing it had good effects in increasing oil production and decreasing water content.
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©CNKI All Rights Reserved