106 NOETLING: PETROLEUM IN BURMA. 



the sand beds. The top of the petroliferous sand was found at 319 

 feet from the surface or at 138 feet above sea level. Well No. 47 

 has already been discussed. 



The section of No. 6 is very incomplete, all that is known is 

 that comparatively close to each other two oil-sands were found, one at 

 225 feet, the other at 310 feet from the surface, which it is extremely 

 difficult to correlate with those found in different wells. The boring 

 records of Nos. A, 6 and 10 seem to indicate the existence of an oil- 

 sand above the chief oil producing sand which has not been found 

 in any of the other wells. If we suppose the upper sand to be the 

 continuation of the 3rd sand in No. 47, there is a rise in its level 

 from No. 47 towards No. 6 ; if the lower, then there is a fall. 



The question becomes still more complicated if we proceed 

 towards A where there are four consecutive sands, the 1st, 3rd and 

 4th in the sequence being petroliferous, the 2nd dry, and compare 

 these with the adjoining No. 36 where there is only one sandy bed 

 altogether. 



If my interpretation is correct and the last arenaceous bed in 

 wells Nos. 6, A and 36, the top of which was found at 160 feet above 

 sea level in No, 6, at 200 feet in No. A, and at 220 feet in No. 36 

 represents the 3rd oil-sand, then its level falls from 47 towards 6 and 

 rises from there towards A. To me this seems most probable, 

 as it is unquestionably proved by the remarkable run of the line 

 connecting the poor wells Nos. 2, A, 6, 1, 41, 40, 3, 8, north of which 

 the two indifferent wells Nos. 46 and 36, and the rich well No. 38, are 

 situated, that a new element in the series stretches from Twingon 

 towards Kodoung, the east end of which is represented by the wells 

 Nos. 36, 38 and 48. This question unfortunately cannot be gone into 

 for the present, not only because the boring registers of four wells 

 Nos. I, 2, 4, 5 are missing, but what is more important, because nothing 

 is known at present about the deeper structural features of the Twin- 

 gon tract. To me the new feature seems sufficiently represented 

 by the petroliferous sand found at 230 feet above sea level in No. 6, 

 240 feet in No. A, and 250 feet in No. 10. On the other hand, it 

 ( 15a ) 



