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The line of sucker rods is represented in this diagram by the solid black line in the center of the well. A sucker rod is a steel rod, typically between 7 and 9 metres (25 and 30 ft) in length, and threaded at both ends, used in the oil industry to join together the surface and downhole components of a reciprocating piston pump installed in an oil well.
The polished rod is connected to a long string of rods called sucker rods, which run through the tubing to the down-hole pump, usually positioned near the bottom of the well. Picture of a pump jack used to mechanically lift liquid out of the well if there is not enough bottom hole pressure for the liquid to flow all the way to the surface.
[[Category:Bar chart templates]] to the <includeonly> section at the bottom of that page. Otherwise, add <noinclude>[[Category:Bar chart templates]]</noinclude> to the end of the template code, making sure it starts on the same line as the code's last character.
Template:Bar chart/styles.css This template can be used to create a horizontal bar chart, scrolling down a page, in a format which can be parsed by text-based web browsers. The data items can be simple numbers, or the result of calculations based on template parameters.
This template is a convenience template to provide multiple-digit numbers in the rod numeral system. Each parameter is the value to be passed; the template currently can handle up to ten numerals. Each parameter is the value to be passed; the template currently can handle up to ten numerals.
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The rod is used in levelling procedures to determine elevations and is read using a level. A Philadelphia rod consists of two sliding sections graduated in hundredths of a foot. On the front of the rod the graduation increasing from zero at the bottom. On the back of the rod the graduation decrease from 13.09 ft at the bottom to 7 ft.