HYDRAULIC ANCHOR FOR FIXING TUBINGS IN WELLS WITH ROD PUMPS (VARIANTS)
FIELD: oil-producing industry.SUBSTANCE: invention relates to the oil-producing industry, in particular to devices for fixing a tubing (TS) string in a casing string (CS) during oil extraction by well rod pumping units. The hydraulic anchor for fixing tubings in wells with rod pumps comprises a body...
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Format: | Patent |
Sprache: | eng ; rus |
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