A Straight Valve Layered Dispenser with Special-shaped Liquid Inlet

A liquid inlet and dispenser technology, applied in the mechanical field, can solve problems such as straight-valve layered dispensers not working properly, liquid inlet impurity blockage, etc., to achieve easy wiring, good sealing settings, and reduce losses Effect

CN104131802BActive Publication Date: 2016-06-22HARBIN INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-06-22

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Abstract

A straight-valve layered dispenser with a special-shaped liquid inlet belongs to the field of machinery. The invention aims to solve the problem that the liquid inlet of the eccentric dispenser used in the existing polymer injection wells in oil fields is easily blocked by impurities, resulting in Issue with Straight Valve Stratified Dispenser not working properly. It includes a straight valve type layered dispenser body, a special-shaped liquid inlet and a cone valve; the special-shaped liquid inlet is composed of a No. 1 circular through hole, a rectangular through hole and a semicircular through hole connected to each other. Connected, the center of the No. 1 circular through hole, the intersection of the diagonals of the rectangular through hole and the center of the semicircular through hole are located on the same horizontal line, and the radius of the semicircular through hole is smaller than the radius of the No. 1 circular through hole; Usually, the straight-valve layered dispenser blocks the No. 1 circular through hole of the special-shaped liquid inlet through the cone valve. The dispenser drives the cone valve to move through the lead screw, so that the No. 1 circular through hole is unblocked. Used in the field of crude oil recovery.
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Description

technical field

[0001] The invention relates to downhole polymer driving equipment, which belongs to the field of machinery. Background technique

[0002] In order to further enhance oil recovery, polymer oil recovery has become an important means and method of oil field development after water flooding. However, due to the high viscosity of the polymer and the complex downhole environment, the current manual fishing technology cannot achieve flow monitoring and accurate flow injection. At the same time, the construction is very difficult and cannot meet the requirements of polymer injection. Therefore, it is decided to develop a polymer injection well measurement and adjustment system. , improve the oil displacement effect and further solve the clogging situation caused by impurities, etc., resulting in the failure of the entire equipment to work normally, and the function of layered injection cannot be realized. Contents of the invention

[0003] The object of the prese...

Examples

specific Embodiment approach 1

[0020] Specific implementation mode one: the following combination figure 1 , Figure 7 and Figure 8 Describe this embodiment, the straight-valve layered dispenser described in this embodiment includes a straight-valve layered dispenser body, which also includes: a special-shaped liquid inlet 10 and a cone valve 11;

[0021] The special-shaped liquid inlet 10 is composed of a No. 1 circular through hole 10-1, a rectangular through hole 10-2 and a semicircular through hole 10-3 connected to each other. The No. 1 circular through hole 10-1, The rectangular through hole 10-2 and the semicircular through hole 10-3 communicate with each other. The centers of -3 are located on the same horizontal line, and the radius of the semicircular through hole 10-3 is smaller than the radius of the No. 1 circular through hole 10-1;

[0022] In the normal working state, the straight valve layered dispenser blocks the No. 1 circular through hole 10-1 of the special-shaped liquid inlet 10 thr...