Rotary coring of Appalachian area oil-producing formations with mud or air

Author:	Rough, R. L.
Year:	1969
Document Type:	BMRA
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	I 28.23:7238
Series:	Report of investigations / Bureau of Mines ;
Report Number:	7238
Subjects:	Oil well drilling--Appalachian Region
	Secondary recovery of oil--Costs
	Drilling muds
	Secondary recovery of oil--Appalachian Region
Link:	https://hdl.handle.net/2027/mdp.39015078538165