140 THE ROYAL SOCIETY OF CANADA 



It is also useful to insert the following information concerning 

 the periods during which the well was open, from the time of its dis- 

 covery to the commencement of the test which will be described. 



The larger flow was blowing into the open atmosphere from the 

 time of its discovery at 3.00 a.m., Wednesday, November 4tb, until it 

 was capped at 4.00 p.m., Saturday, November 7th. At 6.00 p.m. 

 on this date the well was opened and blown down to a pressure of 200 

 pounds per square inch at the outlet valve and the gas was lighted 

 for a period of three hours. After this the well remained closed until 

 3.00 p.m. Wednesday, November 11th, when it was opened for a 

 period of three hours. It was again opened at 8.00 a.m. on Thursday, 

 November 12th, until 4.00 p.m., November 13th. Thus the well had 

 been open for various periods which totalled approximately live days 

 from November 4th to November 14th, on which date our tests 

 began. 



It might be mentioned also, with reference to the smaller fîow of 

 gas, that it had been used practically continuously, for the purpose of 

 heating the boilers of the drilling machinery and for burning as a light 

 for the premises. 



A chemical examination of samples of the gas from both smaller 

 and larger flows showed the composition of the gas to be approximately 

 as follows : 



Tarafifin hydrocarbons (almost completely methane) . . 94% 



Nitrogen 5% 



Oxygen 0-4% 



Carbon dioxide • 6% 



The physical tests here described were carried out on the larger 

 flow of gas. 



In order to find whether this flow came from a small isolated 

 gas pocket, which might be quickly depleted, or whether it gave 

 promise of a more extensive gas field, the well was blown into the open 

 atmosphere, with no restrictions to the flow of gas, for a period of 

 seven days. Daily measurements of the rate of flow were taken by 

 means of Pitot tube. 



It may be well to recall that this instrument is merely a simple 

 manometer, of U-shape, containing a mobile liquid in each limb. 

 If the manometer is connected by a tube with the flow of gas, in the 

 manner indicated in Fig. 1, there will be a difference of level, h, of the 

 liquid in the limbs of the manometer. The difference of level will 

 be proportional to the square of the v elocity, V, of the flowing gas. 



iThe writer is indebted to Mr. Kelso, of the University Industrial Laboratories, 

 for this analysis. 



