168 University Geological Survey of Kansas. 
of productive oil-sand was encountered, corresponding with 
the oil-sands in the other wells. 
Reviewing what has been stated concerning these six wells 
it is seen that there is a sandstone 10 feet in thickness in Kan- 
sas Crude No. 1, which disappears entirely in a distance of 
less than 600 feet to the east, and less than 500 feet to the 
southeast, as it is totally wanting in Oread Nos. 2 and 3. The 
25-foot gas-sand in Oread No. 2 is not represented in Oread 
No. 1 or in the Kansas Crude No. 1. This illustrates the rapid 
transition in the character of the strata. 
In regard to the gas horizons it will be noted that a strong 
flow of gas was obtained from a sand lying beneath an oil- 
sand in Kansas Crude No. 1, and that the stronger flow of 
gas was obtained from a sand above the oil-sand in Oread No. 
2, only 500 feet away. It is impossible to say what would have 
developed in Oread No. 3 had the drill gone deeper, but the 
main oil-sand might have been reached. Likewise, it is im- 
possible to determine whether the Oread wells, if they had 
been drilled deeper, would have reached the gas at 875 feet, 
the depth at which it was encountered at Kansas Crude No. 1. 
The records of wells in sections 32 and 33 in township 26 
south, range 18 east, in the valley of Neosho river between 
Humboldt and Chanute, furnish further illustrations of the 
variation in the horizon and lateral extent of the oil- and gas- 
sands. In the southeast quarter of section 33, a number of 
good oil-wells were found, with a gas-well but a few hundred 
feet away. 
In the Neosho river valley, east of Chanute, oil-sands gen- 
erally, but not always, lie above the gas-sands. In most wells 
the oil-sand is reached at from 700 to 750 feet. Usually there 
is a bed of shale about 40 feet thick below the oil-sand, and - 
beneath this a heavy bed of sand carrying large quantities of 
gas. The first gas-wells at Chanute went through the oil- 
sands, and it was their showing of oil that induced Mr. Knapp 
to begin drilling for oil in the Chanute field. The gas-wells 
there had an initial capacity of from one to four million cubic 
feet per day, and others recently drilled a mile or more to the 
east across the river had an even greater initial flow. From 
the sandstone only 40 feet above this large volume of gas oil 
was produced having so little gas with it that the pressure was 
not sufficient to cause the wells to flow, thus showing con- 
clusively that there is no communication between the two 
sands. 
