... lowered into the pipe. Results Nowadays maintaining chain drive has become easier. When conducting WO and WL operationscan be dismantled only part of the base, the actuator moves from the wellhead specialtraction device. Kinematics of a chain drive: small oscillation frequency at the uniform speed over most of the move, provides a favorable operating conditions downhole pumping equipment (DPE). In practice, this mode reduces the dynamic loads on the rod string, which leads to a reduction inthe number ...

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