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《ACTA PETROLEI SINICA》 1994-04
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RESEARCH ON EFFICIENCY OF THE WELLHEAD SEALING DEVICE OF PUMPING UNIT

Zhang Jianzhong; Li Yunpeng; Li Baoyan(Daqing Petroleum Institute)  
The seal power consumption of the wellhead sealing device of a pumping unit is only afraction of the total power consumed by the pumping unit,but it varies with the sealing con-struction,packing lubricate and load on the gland.To make a reasonable use of the wellheadsealing device,reduce the power,and increase the efficiencies of the wellhead sealing deviceand the pumping unit itself,several kinds of seal material were tested in the wellhead sealingdevice,and itsseal power consumption at different lubricating conditions was measured inlaboratory and test well.From the measured power consumption and the calculated efficien-cy,suggestions were put forward to make a reasonable use of the wellhead sealing device.
【CateGory Index】: TE931.02
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