METHOD FOR MAKING PUMP ROD Russian patent published in 2003 - IPC

Abstract RU 2211128 C1

FIELD: oil production equipment. SUBSTANCE: method for making pump rod comprises steps of preparing blank and working it; using as blank pump rod worked out at least 80% of its resource in pump column; working such rod to less size of its body. EFFECT: enhanced reliability, increased total useful life period of pump rod. 2 cl, 1 dwg

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RU 2 211 128 C1

Authors

Zakharov L.V.

Shaklein O.V.

Dates

2003-08-27—Published

2001-12-19—Filed