A Straight Valve Layered Dispenser with Special-shaped Liquid Inlet

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.

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...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the liquid inlet of the eccentric dispenser used in the existing polymer injection wells in the oil field is easily blocked by impurities, which leads to the problem that the straight valve layered dispenser cannot work normally, and provides a special-shaped feed dispenser. Straight valve layer dispenser with liquid port

Images