A membrane material downhole oil-water separation device and production string and oil-water separation method
A technology for producing pipe strings and membrane materials, which is applied in earthwork drilling, wellbore/well components, and production fluids, etc. It can solve problems such as small displacement, complex functional string structure, and narrow application range of membrane material string structures. , to achieve the effect of wide application range, simple operation and good separation effect
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[0026] The present invention will be further described below in conjunction with the drawings.
[0027] As attached figure 1 with figure 2 As shown, a membrane material downhole oil-water separation device is a membrane material working cylinder I installed in a downhole production tubing string. The membrane material working cylinder I includes an outer cylinder 3, a hydrophobic and lipophilic mesh membrane 2, a hydrophilic and oleophobic Omentum 4 and fishing head 1. The side wall of the outer cylinder 3 is provided with an inlet / outlet; the hydrophobic and lipophilic mesh membrane 2 is a lipophilic membrane material that only allows the oil phase to pass, and is arranged on the upper part of the outer cylinder 3; The water and oleophobic membrane 4 is a hydrophilic membrane material that only allows the passage of the water phase, and is arranged inside the outer tube 3, between the outer edge of the hydrophilic and oleophobic membrane 4 and the inner wall of the outer tube ...
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