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Concentric polymer allocator

A technology of distributing device and main body, applied in the field of concentric distributing aggregator, can solve the problems of affecting the normal injection of other layers, low docking success rate, high labor intensity, etc., achieving high docking success rate, short measurement and adjustment period, The effect of low labor intensity

Active Publication Date: 2016-04-13
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a concentric agglomerator to solve the technical problems of the eccentric agglomerator, such as low docking success rate, long test period, high labor intensity and affecting normal polymer injection in other layers.

Method used

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Embodiment Construction

[0028] The embodiment of the present invention provides a concentric agglomerator to solve the technical problems of the eccentric agglomerator, such as low butt joint success rate, long test period, high labor intensity and affecting normal polymer injection in other layers.

[0029] An embodiment of the present invention provides a concentric coordinator, including:

[0030] upper connector;

[0031] The main body is connected with the upper joint. The main body has an accommodating space, and a stepped structure is arranged in the accommodating space. The inner wall of the main body away from the upper joint is provided with a shuttle-shaped groove, and the end of the shuttle-shaped groove close to the upper joint is provided with a liquid outlet. , the liquid outlet is connected to the outside of the accommodation space;

[0032] The positioning platform is arranged in the accommodation space and connected with the main body;

[0033] The valve core is set in the accommo...

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Abstract

The present invention discloses a concentric polymer allocator. The concentric polymer allocator comprises an upper connector, a main body, a positioning bench, a valve element, a regulating sleeve, a pedestal and a lower connector. The concentric polymer allocator has the advantages that (1) the regulating sleeve is concentric with a main channel of the polymer allocator, transmitted torque is large, and butt joint success rate is high when the concentric polymer allocator is tested and adjusted; (2) the number of lateral spindle-shaped grooves of the concentric polymer allocator is continuously adjustable, so that accuracy of test and adjustment data is largely increased; (3) the concentric polymer allocator can be matched with the advanced test and adjustment combination technology in the prior art, compared with a traditional steel wire pulling and running method, labor intensity of workers is low, test and adjustment period of a single well is short, and working efficiency is high; (4) the spindle-shaped throttling groove structure is adopted, and relatively large throttle pressure difference is achieved when low viscosity loss is ensured; and (5) profile control can be performed after the concentric polymer allocator is completely opened.

Description

technical field [0001] The invention relates to the technical field of oil collection, in particular to a concentric aggregator. Background technique [0002] Copolymerizers are widely used in layered polymer injection wells in major oilfields in my country, and can realize fine injection of polymer in each layer under a water injection pressure system. The eccentric polymerizer widely used at present is an eccentric structure with eccentric holes It is not concentric with the inner diameter. During normal polymer injection, the throttle core in the eccentric hole is adjusted and controlled by steel wire fishing to replace the throttle core in each layer. The success rate of docking is low, and the single well measurement and adjustment cycle is long, labor-intensive. Large, the accuracy of the test deployment data is not high, and the interlayers interfere with each other during the test deployment, which affects the normal polymer injection in other intervals. [0003] Ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B43/20
CPCE21B43/20
Inventor 宋祖厂赖学明盖旭波刘扬
Owner PETROCHINA CO LTD
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