Bulletin - United States Geological Survey, Issue 406

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Page 61 - Johnson 29 discuss the origin of the cherts in the following words: The Monterey shale has been subjected to a varying degree of alteration, none of it pronounced enough, except in certain restricted localities, to greatly change the appearance of the formation. Silicification has taken place, however, especially in the lower and middle portion, but the process by which the silica was so intimately introduced into the shales is not fully understood. A suggestion is at hand in sees. 13 and 14, T....
Page 195 - group 1, " is in the NW. J sec. 21; and the other, "group 2, " is in the NE. ^ sec. 28. In group 1 there are 13 wells, 1 of these being 1,300 feet in depth, the remainder varying from 80 to 500 feet in depth. The 1,300-foot well yielded flowing water and much gas; the others yield a heavy oil by pumping. The 12 oil-producing wells are all situated within an area of about 400 feet in length and 30 feet in width. The...
Page 114 - Future development will add much to the knowledge of these fields and will show the inaccuracies of the contouring as here presented, but it is hoped that the benefits which may accrue to the operators from a knowledge of the general structure of the...
Page 222 - Bull. 321, 1907. ARNOLD, RALPH, and ANDERSON, ROBERT, Geology and oil resources of the Santa Maria oil district, Santa Barbara County, Cal.
Page 173 - One well alone produced over 110,000 cu. ft. of sand in about 4 years, and another has yielded almost as much in 2 years. The yield of sand gradually decreases with the age of the well, but at no time entirely ceases. These peculiar conditions — soft sand in great quantities accompanying the flow, heavy oil, and strong gas pressure — make the problem of well operation in this field difficult."8 Some pumping wells in the north Midway field produce sand at the rate of over 200,000 cu.
Page 165 - Equal amounts of each were operated upon, and all carried simultaneously until the work was completed. do t do do do 3 do do do 4 do do do 5 do do do 6 do do do 7 do do do 8 do do do...
Page 18 - No. 32). Sacramento. Analyses of oil from the McKittrick, Sunset, and Temblor districts are given in this table. 1904. PRUTZMAN, PAUL W. Production and uses of petroleum in California. Bull. California State Min. Bur. No. 32, 230 pp., maps, plates, figures, and tables. Sacramento. Maps of the various districts and analyses and notes concerning the physical and chemical properties of the oils, their uses, methods of refining, and other useful data are given in this bulletin. 1905. ANDERSON, FRANK...
Page 147 - The oil is believed to have originated in the diatomaceous shales of the Monterey and Santa Margarita formations, and to have migrated to the porous layers intercalated with them, or to the sands and gravels of the unconformably overlying McKittrick formation.
Page 223 - GRISWOLD, WT The Berea grit oil sand in the Cadiz quadrangle, Ohio. Bulletin No. 198. 43 pp. 1902. Structural work during 1901-2 in the eastern Ohio oil fields. In Bulletin No. 213, pp. 336-344. 1903. 25c. Petroleum. In Mineral Resources US for 1906, pp. 827-896. 1907. Structure of the Berea oil sand in the Flushing quadrangle, Ohio. Bulletin No.
Page 15 - Preliminary report on the Santa Maria oil district, Santa Barbara County, Cal., by Ralph Arnold and Robert Anderson. 1907.

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