RICHARDSON: DIFFUSION IN OIL-FIELD WATERS 



75 



Table 2, based on a paper by Becker 2 , was kindly prepared 

 for me by C. E. Van Orstrand. 



TABLE 2 

 Migration of Sodium Chloride in Pure Water 



The concentrations are expressed in terms of the initial con- 

 centration at the plane of contact between a bed of salt and the 

 base of a column of initially pure water. It is assumed that 

 the initial concentration remains constant. 



The computed concentrations are of course only suggestive, 

 and the figures can not be directly applied to the Appalachian 

 region because initially pure water was assumed in computing 

 the table, whereas the water through which diffusion may have 

 occurred must have been initially saline. Nevertheless, the 

 table is of interest in an attempt to account for the high con- 

 centration of the brine represented by analysis B and for the 

 general increase in concentration of Appalachian oil-field brines 

 with depth. 



2 Becker, G. F. Note on computing diffusion. Am. Jour. Sci., 3: 220-226. 

 1897. 



