CN203515563U - Pressure drop tester for water injection well mouth - Google Patents
Pressure drop tester for water injection well mouth Download PDFInfo
- Publication number
- CN203515563U CN203515563U CN201320607155.2U CN201320607155U CN203515563U CN 203515563 U CN203515563 U CN 203515563U CN 201320607155 U CN201320607155 U CN 201320607155U CN 203515563 U CN203515563 U CN 203515563U
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure drop
- water injection
- injection well
- tester
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a pressure drop tester for a water injection well mouth. The pressure drop tester is designed for improving the accuracy and continuity of a water injection well pressure drop test and reducing labor intensity. The lower end of a pressure measuring cylinder of the tester is connected with a lower joint provided with a central passage. The upper end of the pressure measuring cylinder is connected with a plug. A pressure sensing and storing device sealed by a sealing ring and provided with a radial pressure relief opening is arranged inside the pressure measuring cylinder. The upper end of the pressure sensing and storing device is connected with a battery housing. A special battery and an adjusting spring arranged above the special battery are arranged inside the battery housing. According to the pressure drop tester for the water injection well mouth, unattended operation of the well mouth pressure drop test can be achieved, pressure drop test data required for profile control can be automatically and accurately obtained, and the problems that a traditional manual pressure drop test wastes time and labor, and data accuracy is poor are solved.
Description
Technical field
The utility model relates to a kind of wellhead of water injection well pressure fall-off test device, belongs to Profile Control in Injection Well technical field.
Background technology
At present, the pressure fall-off test in water injection well in oil fields profile control process is all located at oil, the collection of cover pressure meter of well head by direct-reading.Yet it is very fast that low-permeability oil is ensconced the drop of pressure at water injection well closing well initial stage, the continuity of artificial direct-reading well head oil, cover pressure meter admission data is poor, and accuracy is low, and error is larger.The drop of pressure of low-permeability oil deposit changes very slow in the later stage, it is longer that the required time is stablized in pressure drop, at well head, manually reads and can expend a large amount of time and manpower, do not meet the digitized demand for development in oil field.
Summary of the invention
The purpose of this utility model is to provide a kind of wellhead of water injection well pressure fall-off test device, to improve accuracy and the continuity of water injection well pressure fall-off test, reduces labour intensity.
Concrete technology contents of the present utility model is as follows:
The lower contact of the pressure cylinder lower end connecting band central passage of this tester, upper end connects plug.In pressure cylinder, be provided with by sealing ring, sealed, with radially pressure sensing and the memory of pressure relief opening, pressure sensing and memory upper end connect battery sleeve, are provided with the regulating spring of reserve battery and top thereof in battery sleeve.
This tester can be realized the unmanned of well head pressure fall-off test, and the pressure fall-off test data that automatic accurate acquisition profile control is required solve the problem that Traditional Man pressure fall-off test takes time and effort, data accuracy is poor.
Accompanying drawing explanation
Fig. 1 is pressure fall-off test device structural representation for wellhead of water injection well.
The specific embodiment
Embodiment:
With reference to Fig. 1, embodiment of the present utility model is further illustrated:
This tester mainly comprises lower contact 1, pressure cylinder 2, sealing ring 3, pressure relief opening 4, pressure sensing and memory 5, battery sleeve 6, reserve battery 7, regulating spring 8 and plug 9;
Pressure cylinder 2 lower ends are threaded with the lower contact 1 of central passage, the upper end plug 9 that is threaded.In pressure cylinder 2, be provided with that seal by sealing ring 3, with radially pressure sensing and the memory 5 of pressure relief opening 4, pressure sensing and the memory 5 upper ends battery sleeve 6 that is threaded, is provided with the regulating spring 8 of reserve battery 7 and top thereof in battery sleeve 6.
During practical application, lower contact 1 is threaded and is located on the manometric interface of wellhead of water injection well.Pressure relief opening 4 is for cushioning and discharging the hydraulic pressure in pressure cylinder 2; Pressure sensing and memory 5 are for enrolling and store measured well head pressure drop data; Pressure drop data reaches computer by the data line of Bonding pressure sensing and memory 5.
Claims (1)
1. a wellhead of water injection well pressure fall-off test device, is characterized in that:
Pressure cylinder (2) lower end of this tester is threaded with the lower contact (1) of central passage, the upper end plug (9) that is threaded; In pressure cylinder (2), be provided with by sealing ring (3) sealing, with radially pressure sensing and the memory (5) of pressure relief opening (4), pressure sensing and memory (5) the upper end battery sleeve (6) that is threaded, is provided with the regulating spring (8) of reserve battery (7) and top thereof in battery sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607155.2U CN203515563U (en) | 2013-09-29 | 2013-09-29 | Pressure drop tester for water injection well mouth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320607155.2U CN203515563U (en) | 2013-09-29 | 2013-09-29 | Pressure drop tester for water injection well mouth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203515563U true CN203515563U (en) | 2014-04-02 |
Family
ID=50374510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320607155.2U Expired - Fee Related CN203515563U (en) | 2013-09-29 | 2013-09-29 | Pressure drop tester for water injection well mouth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203515563U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514545A (en) * | 2013-09-29 | 2015-04-15 | 中国石油天然气股份有限公司 | Pressure drop tester for wellhead of water injection well |
-
2013
- 2013-09-29 CN CN201320607155.2U patent/CN203515563U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104514545A (en) * | 2013-09-29 | 2015-04-15 | 中国石油天然气股份有限公司 | Pressure drop tester for wellhead of water injection well |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20210929 |