A multi-layer quantitative water injection distributor

Abstract

The invention relates to the technical field of layered water injection devices, and discloses a multi-layer quantitative water injection distributor, which includes an upper main pipe and a lower main pipe. There is a water injection hole, the bottom surface of the water injection hole is fixedly connected with an upper water injection pipe, and the top surface of the water injection sleeve is provided with a water injection port. In this multi-layer quantitative water injection distributor, a water injection jacket is added on the inner surface of the upper main pipe, and four sets of upper water injection pipes are connected to the bottom surface of the water injection jacket, and a lower water injection pipe is added inside the lower main pipe. Add a control board in between, use the motor to control the rotation of the control board with a through hole on the top, and adjust the control board through the rotation to connect the through hole with four sets of upper water injection pipes and four sets of lower water injection pipes, so as to realize layered water injection control and centralized control to avoid additional installations Four groups of control mechanisms reduce economic expenditure and improve control convenience.

Description

technical field [0001] The invention relates to the technical field of layered water injection devices, in particular to a multilayer quantitative water injection distributor. Background technique [0002] After the oil field is put into development, with the prolongation of the production time, the energy of the formation itself is also continuously consumed, and the pressure of the oil layer will continue to drop, which will degas the underground crude oil, increase the viscosity, reduce the production of the oil well, and even lead to the suspension of spraying and production, causing underground A large amount of crude oil cannot be recovered. In order to make up for the underground deficit caused by the extraction of crude oil, maintain or increase the pressure of the oil layer, and achieve high and stable production in the oil field, it is necessary to inject water into the oil field. As the oilfield enters the stage of high water cut production, the requirement for l...

AI Technical Summary

Problems solved by technology

[0003] The existing multi-layer quantitative water injection distributor, in the process of use, because the multi-layer water injection pipe usually adopts multiple sets of control mechanisms during the use control process, and the control chip is used to remotely control multiple sets of valves to realize the control of layered water injection. Need to use multiple sets of control mechanisms, and the control valve is located at the bottom, so it is difficult to repair the fault, and the method of separate control by the control chip makes the cost of the water distributor high, the economy is poor, and the use effect is not good

[0004] In addition, during the use of the existing multi-layer quantitative water injection distributor, since the top of the water distributor leaves residual water in the pipe after water injection, the top part of the water distributor located closer to the ground is susceptible to frostbite during winter use, making The life of the pipeline is reduced, and it is prone to damage, which will cause leakage, increase the cost of maintenance and management during use, and cause poor use effect

[0005] On the other hand, during the installation process of the existing multi-layer quantitative water injection distributor, since the core control components are usually located above, although the position is relatively close to the ground surface, the structure sealed in the main pipeline is difficult to easily disassemble and maintain. Difficulty, disassembly effect is not good, manpower and material resources are consumed in the actual use and maintenance process, and it is inconvenient to use

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