Bridge type concentric constant pressure water distributor

Abstract

The invention discloses a bridge type concentric constant pressure water distributor. The bridge type concentric constant pressure water distributor comprises an upper joint, a positioning platform, aconcentric adjusting sleeve, an outer protective casing, an adjusting mechanism, a main structure and a lower joint. The outer protective casing is connected to one end of the upper joint, the main structure is connected to the other end of the outer protective casing, and the lower joint is connected to the other end of the main structure. One end of the positioning platform is installed insidethe upper joint in a sleeved mode, and the main structure is connected to the other end of the positioning platform. One end of the concentric adjusting sleeve is installed inside the positioning platform in a sleeved mode, and the main structure is connected to the other end of the concentric adjusting sleeve. The upper joint, the positioning platform, the concentric adjusting sleeve, the outer protective casing, the main structure and the lower joint are centrally penetrated and coaxially arranged, the adjusting mechanism is installed and pressed tightly between the main structure and the outer protective casing in a sleeved mode, and the concentric adjusting sleeve meshes with one end of the adjusting mechanism. The design combining electric direct adjustment of downhole flow and a constant pressure control technology is adopted in the bridge type concentric constant pressure water distributor, the flow control effect is improved, and the voltage stabilization and constant voltage control are realized.

Description

technical field [0001] The invention belongs to the technical field of oilfield water injection, in particular to a bridge-type concentric constant-pressure water distributor. Background technique [0002] The bridge-type concentric layered water injection technology is another high-efficiency separate injection technology after the bridge-type eccentric separate injection technology. It has many separate injection stages, adapts to large well deviation, produced water, small water volume and other separate injection conditions, which greatly meets the requirements The demand for fine injection in oilfields; in recent years, domestic water injection development oilfields have focused on the promotion and application of this technology, and achieved good results in water injection development. As the core tool of this technology, the bridge-type concentric water distributor adopts concentric docking and concentric adjustment, which has the advantages of high docking success r...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a bridge-type concentric constant pressure water distributor, which overcomes 1 in the prior art: the bridge-type concentric dispensing process in the early stage can only be manually tested and adjusted for a short time, and cannot be automatically adjusted for a long time. Adjustment, 2: The amount of layered water injection varies significantly with the influence of pressure and formation water absorption capacity, etc., 3: The pass rate of layered water injection drops rapidly, seriously restricting the effect of layered water injection and other issues

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