Questions regarding the combined use of submersible pumps and pipeline pumps for oil unloading?
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Recently, I have been working on some reference questions, and it is necessary to take into account the technical aspects related to oil unloading using submersible pumps and pipeline pumps. However, I couldn’t find much information on this topic. I hope everyone can provide some materials, such as ways to optimize the use of these two types of pumps in order to achieve maximum efficiency. Thank you!~~
The total flow rate of oil discharged by submersible pumps per batch should not exceed that of pipeline pumps; for example, if a submersible pump can handle 50 cubic meters per hour while a pipeline pump can handle 300 cubic meters per hour, then the total amount of oil discharged by submersible pumps per batch should not exceed 6 cubic meters. This is just my personal opinion!
It’s the issue of pumps being connected in series; it’s difficult to ensure that both pumps operate at their highest efficiency point. In my opinion, the key is to ensure that the pipeline pump with higher power operates within its efficient range.
Let me ask again: then how is fitting the pressure-flow curve for the combined operation of a submersible pump and a centrifugal pump carried out? :)
It is generally determined based on the pump’s efficiency and type, as well as its rated power. The flow rate requirements also play a role in this decision. The simplest approach is the one mentioned by the person earlier: submersible pumps have a flow rate of 50 cubic meters per hour, while pipeline pumps have a flow rate of 300 cubic meters per hour. Usually, 6 to 8 submersible pumps are used. If efficiency is a consideration, a factor of 1.25 can be used.
Adaptive versions of the green-card electric swan-neck submersible pumps are now available. It is mainly due to considerations regarding compatibility with the main pump. It is also best for designers to exchange technical information with various manufacturers during the design process.