CN101550823B - Method and device for improving the accuracy of flow rate test of flowmeter used for water injection wells in oil fields - Google Patents
Method and device for improving the accuracy of flow rate test of flowmeter used for water injection wells in oil fields Download PDFInfo
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- CN101550823B CN101550823B CN200810300821A CN200810300821A CN101550823B CN 101550823 B CN101550823 B CN 101550823B CN 200810300821 A CN200810300821 A CN 200810300821A CN 200810300821 A CN200810300821 A CN 200810300821A CN 101550823 B CN101550823 B CN 101550823B
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Abstract
The invention discloses a method and a device for improving the accuracy of flow rate test of a flowmeter used for water injection wells in oil fields, wherein the method comprises the following stepsof making a wake space in an instrument, and then respectively testing the zero flow parameters of the flowmeter at different positions, and using the parameters for correcting the flow test values a t the corresponding positions. By the method of making the wake space in the instrument, the invention respectively tests the zero flow parameters of the flowmeter at different positions, and respectively uses the parameters for correcting the flow test values at the corresponding positions, thus achieving the objective of eliminating the influence of external factors such as pressure, temperature, viscosity and the like on the test results, and improving the accuracy of flow test. The device has the advantage of being capable of adjusting the size of the water nozzle of a blanking plug, thereby greatly reducing the operating cost, reducing the labour intensity and improving the work efficiency.
Description
Technical field
The present invention relates to a kind of method and device that improves flowmeter used for water injection wells in oil fields stratified flow rate test accuracy, belong to the well testing technology technical field.
Background technology
Along with oil-field flooding technology is more and more universal, water injection well is more and more, needs often the water distribution scheme to be adjusted, to reach the purpose of stabilized crude (oil) output, rational exploitation.Flow meter is the instrument that is used for water injection well test zonal flow rate.Its test accuracy directly influences the quality of flood effectiveness.At present in the prior art, water injection well with flow in respect of ultrasonic flowmeter, electromagnetic flowmeter, mass flowmenter etc.The common ground of these flow meters is to demarcate through ground, generates discharge coefficient, calculates the laminated distributor under well flow again.Because downhole conditions is complicated: parameters such as temperature, pressure, viscosity are widely different, can not go out all situations in ground simulation again, and causing test result to be compared with actual flow has very big zero drift, and test error is bigger.
Summary of the invention:
The objective of the invention is: a kind of elimination error of zero is provided, and then improves the method and the device of flow meter stratified flow rate test accuracy.
The present invention is achieved in that the method for flowmeter used for water injection wells in oil fields raising accuracy of flow rate test of the present invention does; It is through making the slough in instrument internal; Sensed flow meter is used the flow rate test value of this this position of parameter correction again in the zero delivery parameter at diverse location place respectively then.
Can make the slough in instrument internal through the method for closing water inlet or delivery port.
In the slough of making, its liquid that comprises is the real well liquid in this station acquisition.
The flow meter that this method adopted; It comprises mozzle (3), is equipped with in the mozzle (3) water blocking valve used (2), and a probe (5) is equipped with in mozzle (3) bottom; Left side probe (12) is housed in water blocking valve used (2); Probe (5) all is connected main frame (9) with left side probe (12), and motor (1) is housed in the main frame (9), and motor (1) is connected with the upper end of water blocking valve used (2).
Can spacing plug screw (11) be housed in mozzle (3) side.
Be more preferably, on mozzle (3), be provided with an installation head (6), probe (5) is contained in the installation head (6).
Owing to adopted technique scheme; Compared with prior art; The present invention is through making the method for slough in instrument internal, and sensed flow meter is used the flow rate test value of this this position of parameter correction again in the zero delivery parameter at diverse location place respectively; Reach the influence to test result such as the extraneous factor of eliminating pressure, temperature, viscosity, improve the purpose of accuracy of flow rate test.Device of the present invention has need not change the advantage that blanking plug just can be regulated blanking plug water nozzle openings of sizes, has therefore significantly reduced running cost, has reduced labour intensity, has improved operating efficiency.
Description of drawings
Accompanying drawing 1 is a structural representation of the present invention;
Accompanying drawing 2 is a utilization structure sketch map of the present invention;
Accompanying drawing 3 is the A-A sectional view of accompanying drawing 2.
The specific embodiment
Embodiments of the invention 1: flowmeter used for water injection wells in oil fields improves the method for accuracy of flow rate test; Close water inlet or delivery port through instrument internal; Make the slough in instrument internal and make the slough; The liquid that comprises in the slough is the real well liquid in this station acquisition, and sensed flow meter is used the flow rate test value of this this position of parameter correction again in the zero delivery parameter at diverse location place respectively then.
The structure of flowmeter used for water injection wells in oil fields is as shown in Figure 1, is equipped with in the mozzle 3 left side probe 12 is housed in water blocking valve used 2, water blocking valve used 2, and compresses with compressing plug screw 13; Mozzle 3 bottoms are provided with an installation head 6, and probe 5 is contained in the installation head 6, and fix with right plug screw 14; The lead-in wire of left side probe 12 passes from water blocking valve used 2 bottom outlet, and through left end, the lead-in wire of two probes is connected in the main frame 9 through sealing-plug 10 lead-in wire of probe 5 from the side opening of mozzle 3; Motor 1 is housed in the main frame 9; With main frame 9 mozzle 3 of packing into, and fixing with 3 screws 8, carry out movable sealing with combination seal 7 between the output shaft of motor 1 and the main frame 9; The output shaft right-hand member of motor 1 is processed with groove, and the cross section that groove is enclosed within water blocking valve used 2 left ends is on the axle of rectangle; Spacing plug screw 11 screws in the mozzle 3 from left end, makes water blocking valve used 2 can only rotate, and can not move axially.
When using blanking plug device of the present invention, water blocking valve used 2 can block the water inlet of mozzle 3 under the drive of motor 1, form slough 4, test zero delivery parameter; Also can open the water inlet of mozzle 3, carry out proper testing.
Claims (6)
1. a flowmeter used for water injection wells in oil fields improves the method for accuracy of flow rate test; It is characterized in that: through making the slough in instrument internal; Sensed flow meter is used the flow rate test value of this this position of parameter correction again in the zero delivery parameter at diverse location place respectively then; Its flow meter comprises mozzle (3); Be equipped with in the mozzle (3) water blocking valve used (2); A probe (5) is equipped with in mozzle (3) bottom, and left side probe (12) is housed in water blocking valve used (2), and probe (5) all is connected main frame (9) with left side probe (12); Motor (1) is housed in the main frame (9), and motor (1) is connected with the upper end of water blocking valve used (2).
2. flowmeter used for water injection wells in oil fields according to claim 1 improves the method for accuracy of flow rate test, and it is characterized in that: the method through closing water inlet or delivery port is made the slough in instrument internal.
3. flowmeter used for water injection wells in oil fields according to claim 1 improves the method for accuracy of flow rate test, it is characterized in that: in the slough of manufacturing, its liquid that comprises is the real well liquid in this station acquisition.
4. improve the flow meter that method adopted of accuracy of flow rate test like the described flowmeter used for water injection wells in oil fields of any claim in the claim 1,2 or 3; It is characterized in that: it comprises mozzle (3); Be equipped with in the mozzle (3) water blocking valve used (2); A probe (5) is equipped with in mozzle (3) bottom, and left side probe (12) is housed in water blocking valve used (2), and probe (5) all is connected main frame (9) with left side probe (12); Motor (1) is housed in the main frame (9), and motor (1) is connected with the upper end of water blocking valve used (2).
5. flow meter according to claim 4 is characterized in that: spacing plug screw (11) is equipped with in mozzle (3) side.
6. flow meter according to claim 4 is characterized in that: mozzle (3) is provided with an installation head (6), and probe (5) is contained in the installation head (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810300821A CN101550823B (en) | 2008-04-02 | 2008-04-02 | Method and device for improving the accuracy of flow rate test of flowmeter used for water injection wells in oil fields |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810300821A CN101550823B (en) | 2008-04-02 | 2008-04-02 | Method and device for improving the accuracy of flow rate test of flowmeter used for water injection wells in oil fields |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101550823A CN101550823A (en) | 2009-10-07 |
| CN101550823B true CN101550823B (en) | 2012-09-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810300821A Active CN101550823B (en) | 2008-04-02 | 2008-04-02 | Method and device for improving the accuracy of flow rate test of flowmeter used for water injection wells in oil fields |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518423B (en) * | 2011-12-09 | 2014-08-20 | 陕西华晨石油科技有限公司 | High-temperature thermal production well downhole testing method |
| CN104453859B (en) * | 2013-09-24 | 2017-12-05 | 中国石油化工股份有限公司 | Well completing test device and its system |
| CN106052778B (en) * | 2016-07-25 | 2022-06-28 | 赵吉利 | Electromagnetic measuring system for oil well flow |
| CN112304806B (en) * | 2020-11-02 | 2021-08-31 | 吉林大学 | Underground ultrasonic viscosity measuring device and measuring method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182206A (en) * | 1996-11-12 | 1998-05-20 | 陈志红 | Piston-type flowmeter |
| CN2435514Y (en) * | 2000-03-24 | 2001-06-20 | 大庆油田有限责任公司采油工艺研究所 | Water well layered pressure measuring device |
| CN201013333Y (en) * | 2007-03-26 | 2008-01-30 | 邓亚东 | Computer allocated gauging water distributor |
| CN201176873Y (en) * | 2008-04-02 | 2009-01-07 | 贵州航天凯山石油仪器有限公司 | Flowmeter for oil field water injection well |
-
2008
- 2008-04-02 CN CN200810300821A patent/CN101550823B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1182206A (en) * | 1996-11-12 | 1998-05-20 | 陈志红 | Piston-type flowmeter |
| CN2435514Y (en) * | 2000-03-24 | 2001-06-20 | 大庆油田有限责任公司采油工艺研究所 | Water well layered pressure measuring device |
| CN201013333Y (en) * | 2007-03-26 | 2008-01-30 | 邓亚东 | Computer allocated gauging water distributor |
| CN201176873Y (en) * | 2008-04-02 | 2009-01-07 | 贵州航天凯山石油仪器有限公司 | Flowmeter for oil field water injection well |
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| CN101550823A (en) | 2009-10-07 |
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