PROBLEM OF THE GREAT AUSTRALIAN ARTESIAN BASIN, 



207 



in support thereof slender, it is hoped that the suggestions 

 made may pave the way to a fuller search for the data 

 requisite for the solution of the many difficulties that 

 confront the inquirer. 



Table Al. — Discharges induced in a bore by small amounts of 



rising Gas. 



/ n i r»OT A + 3 4 \ 



a x 34 x 2-3 log — ^— \ i n f ee t 



Based on the formula v = 



34 



1 + 



\fh 



per 

 'second. 



Percentage of gas a 



evolved at surface 



at atmospheric 



pressure. 



0-25 

 0-50 

 1-00 

 2-00 



0-25 

 0-50 

 1-00 

 2-00 



1-00 



1-00 



1-00 



Cubic feet of 



gas evolved 



per day. 



33-5 



90-7 

 268 

 726 



26-5 



75 

 212 

 600 



166 



143 



127 



Velocity of 



water in feet 



per second 



0-79 

 117 

 1-58 

 2-34 



0-63 

 0-89 

 1-26 

 1-78 



0-98 



0-85 



0-75 



Discharge of 



water in gallons 



per day. 



83,720 

 113,400 

 167,440 

 226,800 



66,415 



93,935 



132,830 



187,870 



103,690 

 89,520 

 79,420 



Depth of bore- 

 hole of diameter 

 six inches. 



500 feet 



1,000 feet 



2,000 feet 

 3,000 feet 

 4,000 feet 



Table A 2. — Volumes of Gas required to produce large flows of 

 Water in a six inch bore, 2,000 feet deep; f = 0-00575. 



Discharge of water 



Ratio of proportion 



Eqnivaleut head 



Volume of gas set 



induced, in gallons 



of gas to water at at- 



induced in pounds 



free at the surface 



per day. 



mospheric pressure. 



per square inch. 



in cubic feet per day. 



125,000 



0015 



0-4 



290 



250,000 



0-058 



3-5 



2,320 



500,000 



0-234 



14-1 



18,600 



750,000 



0-535 



32-2 



64,200 



1,000,000 



0-961 



57-8 



153,900 



1,250,000 



1-54 



93 



309,400 



1,500,000 



2-32 



140 



558,000 



(The higher figures are uncertain.) 



