It will be much desirable to take the inf ormations from the oil development and production engineering additionally to the geological informations into consideration, when the subsurface geology of some oil fields are interpreted from the standpoint of planning on waterflood projects.
The author has made up the subsurface structure map and isopach map of the reservoir, and ref ered to the position of the oil-water contact and to the difference of the crude oil property in order to recognize the reservoir conditions exactly. It is significant as the background on interpretation of subsurface geology, to use many engineering data. So, in this paper the author has selected both the SP reduction factor and the formation parameters being considered in the calculation for minimum cost drilling, and developed the computer program to calculate the parameters by the digital computers.
Showing some new engineering data concerning the reservoir, the author has devided this reservoir temporarily into some blocks and concluded that A and B blocks should be given the priority to the water flooding projects.