1. Basic definition of forward and reverse rotation pumps
Mud pumps are commonly used pump equipment in oil drilling. According to the operation mode of the pump, mud pumps can be divided into two types: forward rotation pumps and reverse rotation pumps. Forward rotation pumps refer to pump shafts rotating toward the pump mouth, while reverse rotation pumps refer to pump shafts rotating toward the pump tail.
2. Pump inlet and outlet positions and flow direction
The forward and reverse rotation of mud pumps have different inlet and outlet positions and flow directions. The inlet of the forward pump is at the pump tail and flows to the pump mouth, while the inlet of the reverse pump is at the pump mouth and flows to the pump tail. Therefore, the flow direction of the forward pump is in the same direction as the pump shaft, while the flow direction of the reverse pump is opposite to the pump shaft.
3. Choice of forward and reverse rotation
In actual use, the forward and reverse rotation of the mud pump need to be selected according to specific conditions and needs. Generally, forward rotation pumps are suitable for situations where the demand flow is relatively large, while reverse rotation pumps are suitable for situations where the demand flow is relatively small. In addition, it is also necessary to determine the working mode of the pump according to the specific conditions of the wellhead and wellbore.
IV. The impact of forward and reverse rotation on the pump
Forward and reverse rotation pumps have different effects on the performance and life of the pump. When using a forward rotation pump, the impeller and pump sleeve of the mud pump are less worn, but in oil wells, reverse rotation pumps are often needed to ensure the pressure at the bottom of the well, which will cause the reverse rotation pump to be used frequently, resulting in a relatively short service life.
