Multifunctional fluid one-way injection device and using method thereof

An injection device and multi-functional technology, applied in the direction of wellbore/well valve device, earthwork drilling and production, wellbore/well components, etc., can solve problems affecting oil wells, weak gas sealing, easy to block, etc., to meet long-term requirements Dilute operation, strong sealing, and ensure the effect of functional diversity

Pending Publication Date: 2020-11-03
中石化石油工程技术服务有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Currently, the commonly used one-way fluid injection device has a single injection fluid, a small injection channel, and weak airtightness. , which greatly increases the maintenance cost of the oil well in the later stage

Method used

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  • Multifunctional fluid one-way injection device and using method thereof
  • Multifunctional fluid one-way injection device and using method thereof

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Embodiment Construction

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] Such as Figure 1-2 As shown, the multifunctional fluid one-way injection device of the present invention includes a valve body 2 , an upper joint 1 and a lower joint 8 . A guide seat 3 and a ball seat combination 4 are placed inside the valve body 2, two sets of symmetrical ball seat combinations 4 are arranged inside the valve body 2, a retaining ring 6 and a shear pin sleeve 5 are arranged on the outside of the valve body 2, the retaining ring 6 and the The valve bodies 2 are connected by threads, and the retaining ring 6 and the shear pin sleeve 5 are connected by a shear pin 7 .

[0025] The upper joint 1 and the lower joint 8 connected on the upper and lower sides of the valve body 2, the upper joint 1 and...

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Abstract

The invention relates to a multifunctional fluid one-way injection device. The multifunctional fluid one-way injection device comprises a valve body, an upper connector and a lower connector, whereina flow guide seat and a ball seat combination are arranged inside the valve body, the two ends of the valve body are connected with the upper connector and the lower connector correspondingly, the upper connector is connected with the valve body through threads, the valve body is connected with the lower connector are connected through threads, a baffle ring and a shear pin bush are arranged on the outer side of the valve body, the baffle ring is connected with the valve body through threads, and the baffle ring is connected with the shear pin bush through a shear pin. The multifunctional fluid one-way injection device can effectively increase the mixing rate of injected fluids and thickened oil, prevents the thickened oil from blocking a production string in the exploitation process, increases the oilfield exploitation rate, and provides a powerful guarantee for smooth production and stimulation measures after completion of a thickened oil well.

Description

technical field [0001] The invention relates to the field of oil recovery engineering, and more specifically relates to a multifunctional fluid one-way injection device and a usage method thereof. Background technique [0002] In the process of oil well production, the heavy oil production string used is often equipped with a fluid one-way injection device. This device is mostly used in the process of heavy oil production. Thin oil is injected into it to dilute it to enhance the fluidity of heavy oil and improve the flow rate of heavy oil. recovery factor. Currently, the commonly used one-way fluid injection device has a single injection fluid, a small injection channel, and weak airtightness. , which greatly increases the maintenance cost of the oil well in the later stage. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a multifunctional fluid one-way injection device and its use method, which can effectively...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B34/08E21B34/06
CPCE21B34/08E21B34/063
Inventor 曹宗波孙晨祥苏浩陈江郭知龙王琮琳唐永祥陈志航郭锐锋蒋嫚杨浦高攀张永峰平宇
Owner 中石化石油工程技术服务有限公司
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