| Our country’s many oilfields have entered high water cut stage and energy conservation with our country petroleum resources mining and oil recovery technology progress. Emission reduction gradually becomes the important content of the oil. Screw pump compared with traditional beam pumping unit has the advantages of simple structure, low cost and low energy consumption. And it is gradually to be used in the fields. But the traditional common screw pump also has its own shortcomings. Compared with the traditional common screw pump, vertical drive screw pump type can make up for its shortcoming and solve the problems in production of ordinary screw pump, which has great value of popularization.We briefly review the history of the development of screw pump, discuss the present situation of the application of screw pump in oil field, and continue to promote in oilfield production. We discuss the necessity, the contrast of the various production machineries with advantages and disadvantages, the direct drive type screw pump structure and its principle.We give the optimization design of vertical screw pump drive type based on vertical screw pump driven model. We design the calculation method of the core component of permanent magnet brushless ac motor structure and working ways again, we also give the optimization design and its algorithm of vertical drive type screw pump control system.In contrast with the vertical drive type screw pump and other production equipment in oil field application of various data, we study the application status of running the vertical drive type screw pump oil production, contrast the difference of energy consumption, and give the analysis results. At the same time, the vertical drive type screw pump in oil field application prospect is analyzed by us.We study the problems in practical application of vertical drive type screw pump and give the solution. We also analyze the abnormal cases of vertical drive type screw pumpand give the corresponding solutions. |
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