Viscosity reduction collection well
A technology for viscosity reduction and oil wells, which is applied in the direction of production fluid, earthwork drilling and production, wellbore/well components, etc. It can solve the problems that oil wells cannot maintain normal production, flow difficulties in low temperature areas, and loss of fluidity, etc., so as to improve the effect of viscosity reduction , Conducive to collection, ensuring efficiency and effectiveness
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[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0027] like figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 , Image 6 , Figure 7 , Figure 8 In the illustrated embodiment, a viscosity reduction collection well comprises a main oil pipe 1, a hollow sucker rod 2 with an open upper end, and an oil wellbore 4 extending below the seabed mudline 3, and the oil wellbore is provided with a A riser 5 with an inner cavity, the top of the riser protrudes from the sea surface 6, the barrel wall of the oil wellbore and the pipe wall of the riser are sealed and connected, the main oil pipe passes through the inner cavity of the water riser, and the lower end of the main oil pipe extends into the water riser. In the oil wellbore, the main oil pipe is provided with a screw pump 7, the upper end of the main working screw of the screw pump is connected with the lower end of the sucker rod, the ...
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