March 1998
Industry At A Glance
98-03_lift-pt1-lea_3.html (Mar-1998)
A monthly magazine offering industry news, statistics and technical editorial to the oil and gas drilling, exploration and production industry.
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Fig. 3. Sand washing device installed at top and bottom of sucker rod pump plunger automatically flushes sand and debris from plunger-barrel contact points on upstroke and downstroke. |
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Copyright © 1999 World Oil
Copyright © 1999 Gulf Publishing Company
