Surface Machinery and Methods for Oil-Well Pumping

to other wells. The future life of the well should be considered
rather than maximum production during the first day, month, or
year. In fact, operating a well at full capacity during its early life
may result in a decreased ultimate production from that well. In
the interests of conservation, national welfare, and ultimate personal
profit, oil operators should stress the greatest ultimate production
from the group. The older oil fields of Pennsylvania, Ohio, West
Virginia, and Illinois exemplify efficiency in group operation. In
Pennsylvania the 59,000 operating oil wells show an average of less
than a quarter of a barrel production per well per day, yet are being
operated at a profit by the group method.
Much assistance in the preparation of this paper was given by
members of the following organizations: Empire Gas & Fuel Co.,
The Prairie Oil & Gas Co., The Associated Oil Co., The Standard Oil
Co. of California, The Shell Co. of California, The Texas Co., The
South Penn Oil Co., The Midwest Refining Co., The Ohio Oil Co.,
The Union Oil Co. of California, The Hope Natural Gas Co., and
the members of the California State Mining Bureau.
Individual recognition for helpful information is due G. B. Rosen-
blatt of the Westinghouse Electric Co., San Francisco, Calif.; H. H.
Anderson of the Shell Co. of California, Oil Fields, Calif.; R. A.
Barnes of the California State Mining Bureau, Cbalinga, Calif.;
R. R. Fishel of the Pan American Oil Co., Casmalia, Calif.; C. F.
Forsburg of the General Electric Co., Los Angeles, Calif.; S. B.
Severson of the Empire Gas & Fuel Co.. Eldorado, Kans.; John
R. Suman of the Rio Bravo Oil Co., Houston, Tex.; W. R. Pender,
mechanical engineer, Houston, Tex.; A. B. Steen of the Texas Co.,
Houston, Tex.; D. C. Laflin, Hosston, La.; A. C. Siekman of Bartles-
ville, Okla.; F. C. Baker of the Ohio Oil Co., Bridgeport, Ill.; R. E.
Davis of the Hope Natural Gas Co., Pittsburgh, Pa.; Ed Cosolowsky
of the South Penn Oil Co., Pittsburgh, Pa.; and E. L. Estabrook of
the Midwest Refining Co., Casper, Wyo.
The oil-field supply companies and the manufacturers of electrical
machinery furnished drawings, photographs, and data that greatly
aided in the preparation of this paper.
Acknowledgments for constructive criticism of this paper are due
C. P. Bowie, M. J. Kirwan, T. E. Swigart, R. R. Templeton, and
M. P. Youker, of the Bureau of Mines. Acknowledgment for the
drawings is due J. G. Shumate, of the San Francisco office of the
Bureau of Mines. A. W. Ambrose, E. P. Campbell, F. B. Tough,
and other members of the Bureau of Mines organization have made
helpful suggestions.

George, H. C. Surface Machinery and Methods for Oil-Well Pumping. Washington D.C.. UNT Digital Library. Accessed February 6, 2016.