Bridge type integrated concentric water distributor

Abstract

The invention discloses a bridge type integrated concentric water distributor, and belongs to the field of oilfield flooding. The bridge type integrated concentric water distributor comprises an upper connector, a main cylinder, a movable cylinder, a fixed seat and a lower connector; the main cylinder comprises an adjusting section and a locating section, the adjusting section is provided with water injection holes and bridge type through holes, and the locating section is provided with a plurality of water passing cuts communicated with the corresponding bridge type through holes; the movable cylinder and the main cylinder have the same axis; a movable water nozzle is fixed to the movable cylinder, adjustment of the water injection amount can be achieved just by rotating the movable cylinder, the adjusting accuracy is high, and workload is reduced; the fixed seat is provided with a center through hole communicated with the movable cylinder; the fixed seat is provided with an overflowing hole communicated with the center through hole, a containing cavity is formed between the outer circumference face of the fixed seat and the inner circumference face of the moveable cylinder, in addition, the containing cavity is communicated with the bridge type through holes and the overflowing hole, so that partial injected water can pass the overflowing hole and flow towards the next bridge type integrated concentric water distributor connected with the lower connector, and normal water injection of other reservoirs needing water injection in the process of layered water injection can be guaranteed.

Description

technical field [0001] The invention relates to the field of oil field water injection, in particular to a bridge-type integrated concentric water distributor used for water injection in a water injection well. Background technique [0002] At present, with the shortage of crude oil in the world, people pay more and more attention to how to improve the oil recovery rate of developed oilfields. Oilfield water injection is a common method in the process of oilfield exploitation. [0003] In recent years, with the development and improvement of bridge eccentric and conventional eccentric injection technology, it has also been widely used in major oil fields. Both of these two technologies adopt eccentric layered water distribution operations. When carrying out oil field water injection, it is necessary to pass the test and deployment, so that the injected water flow rate can meet the requirements. At present, when the eccentric layered water distribution operation in my count...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned oilfield water injection test and deployment process, the repeated fishing and replacement of the faucet is heavy workload, the success rate of instrument docking is low, and the deployment accuracy is poor, and there are low test and adjustment success rate and efficiency in high-deviation wells and deep wells. For the problem of high operational risk, the embodiment of the present invention provides a bridge-type integrated concentric water distributor

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