Mechanisms and experimental research of ion-matched waterflooding to enhance oil recovery in carbonate reservoirs: A case of Cretaceous limestone reservoirs in Halfaya Oilfield, Middle East
PENG Yingfeng,LI Yiqiang,ZHU Guangya,PAN Deng,XU Shanzhi,WANG Xiuyu
Table 8 The optimum salinity and IS ranges of formation water and seawater.
Water type TDS/(mg?L-1) IS/(mol?L-1)
Formation water 6261-9391 0.18-0.12
Seawater 5495-7327 0.15-0.11