@article {37718,
	title = {The use of horizontal wells drilled from the surface for the recovery of bitumen, heavy oil, conventional oil and gas. In : Oil sands 2000 conference, Energy - Environment - Enterprise, Hilton International Hotel, Edmonton, March 26, 27 and 28, 1990, prep},
	volume = {Paper No. 8},
	year = {1990},
	note = {University of Calgary},
	institution = {Alberta Oil Sands Technology and Research Authority (AOSTRA)},
	author = {Butler, Roger M.}
}
