1876.] OOO [Lesley. 



Nov. 29th, 1871. A two quart torpedo was used 11 feet below top of 3d 

 S. S. Result, 10 barrels per day at first, with rapid decline. 



Dec. 11th. A two quart torpedo was exploded at 6 feet in the sand. Re- 

 sult not as satisfactory as from the first one. On May 21, 1872, the produc- 

 tion had decreased to less than 3 barrels per day. A 3 pint torpedo was then 

 put in 17 feet below the top of the sand. Production for the next four 

 months, 4 barrels per day. After the "30 days shut down" of Oct. 1872, 

 it started to pump at less than 1 barrel per day, and with very little gas. 

 This decline was attributed to the pumping of the wells on the adjoining 

 tract after this one had been stopt. 



Nov. 26th, 1872, it was treated with 6 volcanic burners, but with very 

 slight improvement. 



Dec. 7th, 1872, exploded a 3 pint torpedo 20 feet below the top of sand. 

 Increase in oil very slight. 



June 24th, 1873. Production, half barrel per day. 



Colorado Well, Ifo. 10. 

 January 10th, 1872. 



Level of well mouth above ocean , 



Drive pipe 42 feet. 42 = 



? 198 to 240 = 



IstS. S 40 " 280 = 



? 89 " 369 = 



2d S. S 14 " 383 = 



? 87 " 470 = 



3dS.S 43 " 513 = 



? pocket. 9 " 522 = 



Wet hole. Cased at 274 feet, 3| inch casing. 



3d sand of ordinary quality. 



Best part of it between 482 feet and 485 feet. This well when firsl 

 pumped threw off a large quantity of fresh water, and then gradually 

 changed to salt water. The first eight days of pumping the yield of oil 

 did not exceed 3 barrels per day. On the tenth day it produced about 100 

 barrels of oil, and an equal quantity of salt water. It continued to do the 

 same with but very little variation for four months, after which it slowly 

 declined to 60 barrels of oil, and 60 barrels of salt water. It then declined 

 rapidly to 28 barrels of oil and very little salt water. On the 27th of No- 

 vember, 1872, when the oil flow had declined to 23 barrels, the well was 

 treated with 8 volcanic burners which increased the oil to 30 barrels per 

 day, and also augmented the volume of water. After this, until about 

 June 1st, 1873, the production of oil fluctuated from 22 barrels to 36 bar- 

 rels per day. It then suddenly declined to 12 barrels per day, wuth a very 

 perceptible increase of salt water. 



