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- W2363802745 abstract "For the wellbores with the inclination angles more than 42 degrees, the spherical valve of conventional sucker rod pump will lose its stability. Along with the development of directional wells and horizontal wells, it becomes difficult to use the conventional sucker rod pump in the wellbore with an inclination angle over 60 degrees. A new kind of high angle pump is developed. The structure and working principle of the pump, design principles of valve and spring, and the reasonable matching space of centralizer are described. Application of the pump to sixty horizontal wells with thermal recovery heavy crude in Le'an oilfield shows that the mean daily fluid production increased from 19.6 t to 48.2 t, the mean daily oil production increased from 6.4 t to 15.0 t, the temperature of produced fluid was raised from 46 ℃ to 53 ℃, and the pump efficiency was enhanced from 20 2% to 54 6% . A feasible conclusion is drawn from the technology and economy of the pump." @default.
- W2363802745 created "2016-06-24" @default.
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- W2363802745 date "2002-01-01" @default.
- W2363802745 modified "2023-09-25" @default.
- W2363802745 title "A NEW KIND OF SUCKER ROD PUMP USING FOR WELLBORE WITH AN INCLINATION ANGLE OVER 60 DEGREES" @default.
- W2363802745 hasPublicationYear "2002" @default.
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