CN104514545B - Pressure drop tester for wellhead of water injection well - Google Patents
Pressure drop tester for wellhead of water injection well Download PDFInfo
- Publication number
- CN104514545B CN104514545B CN201310454285.1A CN201310454285A CN104514545B CN 104514545 B CN104514545 B CN 104514545B CN 201310454285 A CN201310454285 A CN 201310454285A CN 104514545 B CN104514545 B CN 104514545B
- Authority
- CN
- China
- Prior art keywords
- pressure
- pressure drop
- water injection
- wellhead
- injection well
- 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.)
- Active
Links
- 238000002347 injection Methods 0.000 title claims abstract description 13
- 239000007924 injection Substances 0.000 title claims abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 230000003139 buffering effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/06—Measuring temperature or pressure
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Geophysics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Measuring Fluid Pressure (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The invention discloses a pressure drop tester for a wellhead of a water injection well, which is designed for improving the accuracy and continuity of pressure drop test of the water injection well and reducing the labor intensity. The lower end of the pressure taking barrel of the tester is connected with a lower connector of the central channel, and the upper end of the pressure taking barrel is connected with a plug. The pressure taking cylinder is internally provided with a pressure sensor and a storage device which are sealed by a sealing ring and provided with a radial pressure relief opening, the upper end of the pressure sensor and the storage device is connected with a battery cylinder, and the battery cylinder is internally provided with a special battery and an adjusting spring above the special battery. The tester can realize unattended operation of wellhead pressure drop test, automatically and accurately obtain pressure drop test data required by profile control, and solve the problems of time consumption, labor consumption and poor data accuracy of the traditional manual pressure drop test.
Description
Technical field
The present invention relates to a kind of wellhead of water injection well pressure fall-off test device, belong to Profile Control in Injection Well technical field.
Background technology
At present, the pressure fall-off test during water injection well in oil fields profile control is located at oil, the set pressure gauge collection of well head by direct-reading.
However, the drop of pressure that low-permeability oil ensconces water injection well closing well initial stage is very fast, artificial direct-reading well head oil, set pressure gauge admission data
Continuity it is poor, accuracy is low, and error is larger.The drop of pressure of low-permeability oil deposit changes very slow in the later stage, and pressure drop is steady
The fixed required time is longer, and manually being read in well head can take a substantial amount of time and manpower, not meet the digitized development in oil field
It is required that.
The content of the invention
It is an object of the invention to provide a kind of wellhead of water injection well pressure fall-off test device, to improve water injection well pressure fall-off test
Accuracy and continuity, reduce labor intensity.
The particular technique content of the present invention is as follows：
The lower contact of the pressure cylinder lower end connect band central passage of this tester, upper end connection plug.It is provided with pressure cylinder
By sealing ring sealedly, pressure sensing and memory with radial direction pressure relief opening, pressure sensing and memory upper end connection battery sleeve,
Regulation spring provided with reserve battery and its top in battery sleeve.
This tester can realize the unattended of well head pressure fall-off test, the automatic accurate pressure fall-off test number obtained needed for profile control
According to the problem of solution Traditional Man pressure fall-off test takes time and effort, data accuracy is poor.
Brief description of the drawings
Fig. 1 is wellhead of water injection well pressure fall-off test device structural representation.
Embodiment
Embodiment：
Reference picture 1 is further illustrated to embodiments of the invention：
This tester mainly includes lower contact 1, pressure cylinder 2, sealing ring 3, pressure relief opening 4, pressure sensing and memory 5, electricity
Pond cylinder 6, reserve battery 7, regulation spring 8 and plug 9；
Lower contact 1 of the pressure cylinder 2 lower ends threaded connection with central passage, threaded upper ends connection plug 9.Set in pressure cylinder 2
Have by sealing ring 3 sealedly, the pressure sensing with radial direction pressure relief opening 4 and memory 5, pressure sensing and the threaded upper ends of memory 5
Connect the regulation spring 8 provided with reserve battery 7 and its top in battery sleeve 6, battery sleeve 6.
During practical application, the threaded connection of lower contact 1 is located on the manometric interface of wellhead of water injection well.Pressure relief opening 4 is used for
Hydraulic pressure in buffering and release pressure cylinder 2；Pressure sensing and memory 5 are used to enrolling and storing measured well head number of pressure drops
According to；Pressure drop data reaches computer by the data line of connection pressure sensing and memory 5.
Claims (1)
1. a kind of wellhead of water injection well pressure fall-off test device, it is characterised in that：
The lower contact (1) of pressure cylinder (2) lower end threaded connection with central passage of this tester, and lower contact is away from pressure cylinder
(2) side is not provided with any structure, threaded upper ends connection plug (9)；It is provided with pressure cylinder (2) close by sealing ring (3)
The seal, pressure sensing with radial direction pressure relief opening (4) and memory (5), and the sealing ring (3) and pressure relief opening (4) are along away from institute
The direction for stating lower contact (1) is set gradually, pressure sensing and memory (5) threaded upper ends connection battery sleeve (6), battery sleeve (6)
The interior regulation spring (8) provided with reserve battery (7) and its top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310454285.1A CN104514545B (en) | 2013-09-29 | 2013-09-29 | Pressure drop tester for wellhead of water injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310454285.1A CN104514545B (en) | 2013-09-29 | 2013-09-29 | Pressure drop tester for wellhead of water injection well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104514545A CN104514545A (en) | 2015-04-15 |
| CN104514545B true CN104514545B (en) | 2017-09-01 |
Family
ID=52790369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310454285.1A Active CN104514545B (en) | 2013-09-29 | 2013-09-29 | Pressure drop tester for wellhead of water injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104514545B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104895558B (en) * | 2015-05-20 | 2018-06-01 | 中国石油天然气股份有限公司 | High-pressure water well pressure drop monitoring device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457569Y (en) * | 2000-03-24 | 2001-10-31 | 满林 | Water injection well layering test pressure gauge |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2645064Y (en) * | 2003-10-13 | 2004-09-29 | 大庆石油管理局 | Out pushing type digital wellhead pressure meter |
| US7308952B2 (en) * | 2004-06-04 | 2007-12-18 | Strazhgorodskiy Semen Iosiphov | Underbalanced drilling method and apparatus |
| CN201310351Y (en) * | 2008-12-24 | 2009-09-16 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | Well head pressure temperature measuring apparatus |
| CN202148890U (en) * | 2011-06-24 | 2012-02-22 | 中国石油化工股份有限公司 | Device for producing pressure pulse at wellhead of water injection well |
| CN202338334U (en) * | 2011-11-25 | 2012-07-18 | 中国石油天然气股份有限公司 | High-pressure water well pressure drop testing device |
| CN202467831U (en) * | 2012-03-19 | 2012-10-03 | 大庆赛恩思电子仪器设备有限公司 | Memory type wellhead intelligent pressure transmitter |
| CN203515563U (en) * | 2013-09-29 | 2014-04-02 | 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 CN201310454285.1A patent/CN104514545B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457569Y (en) * | 2000-03-24 | 2001-10-31 | 满林 | Water injection well layering test pressure gauge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104514545A (en) | 2015-04-15 |
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| C10 | Entry into substantive examination | ||
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