CN1186596C - Method for measuring continuous current flux of separate injection well - Google Patents
Method for measuring continuous current flux of separate injection well Download PDFInfo
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- CN1186596C CN1186596C CNB021448604A CN02144860A CN1186596C CN 1186596 C CN1186596 C CN 1186596C CN B021448604 A CNB021448604 A CN B021448604A CN 02144860 A CN02144860 A CN 02144860A CN 1186596 C CN1186596 C CN 1186596C
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- speed
- injection well
- flowmeter
- separate injection
- detecting
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Abstract
The present invention provides a method for detecting the continuous flow rate of a separate injection well, which relates to a method for detecting the water injecting quantity of a separate injection well in an oil field. The existing various flowmeters only can detect the flow rate by matching with a sealing section which is placed in a working barrel of a water distributor for detecting the flow rate in a single layer and the flow rate in the whole well layer by layer; because the sealing section can not be firmly placed and because of the stop flow loss, the detecting technique increases measurement errors and can not judge and analyze leakage quantity. The present invention realizes the detection by adopting a flowmeter without a sealing section, using a common lifting device to deliver the flowmeter to the position below the target layer section by using a steel wire, and then lifting the flowmeter in uniform speed; the lifting speed is 5 to 100 m/min; orderly upwards lifting the flowmeter so as to detect the flow rate in all layers; the flowmeter is not lifted until lifted beyond the last target layer; the water injecting quantity measured at the time is the absolute water injecting quantity of the whole well. The present invention has the advantages of completely avoiding errors produced by detecting the flow rate layer by layer, having high testing precision and detecting efficiency, analyzing errors of a ground water meter via on-line detection and having high detecting speed.
Description
Technical field: the detection method that the present invention relates to separated-zone water infection oil field well water injection rate.
Background technology: in the test of water injection well in oil fields, the detection of carrying out the zonal injection amount is an important link, must be used seal section when the various flowmeters that use detect at present is seated in the water injection allocator working barrel, successively detect individual layer flow and full well yield, this detection technique makes the measuring error increase because seal section is sat tight and the loss of damming, and can't the discriminatory analysis wastage, it is low that efficient is joined in inspection, and workload is big.
Summary of the invention: the purpose of this invention is to provide a kind of separate injection well continuous flow detection method, use this method and can avoid the generation of individual layer flow detection error fully, improve measuring accuracy and inspection and join efficient, can analyze the error condition of ground water meter simultaneously by online detection.The present invention is achieved in that and adopts no seal section flowmeter, use common lifting means earlier flowmeter to be shipped to below the objective interval with steel wire, and then carry at the uniform velocity, on the speed carried be 5～100m/min, make progress successively, test out each laminar flow amount, carried on the flowmeter and carrying on stopping behind last zone of interest, at this moment the water injection rate of Ce Lianging is exactly the absolute water injection rate of full well.The objective interval bottom that flowmeter of the present invention is being tested, since on carry and produce a relative injection flow, this flow is that benchmark is looked flow, when flowmeter passes through water injection allocator, the sectional area of water injection allocator working barrel diminishes, liquid flowing speed strengthens, produce an instantaneous delivery increase value, this increase value is the layering sign, if water injection allocator two partial discharge generation significant changes up and down, can occur one and look flow difference between the upper and lower curve of flow increase value, this difference is exactly the water injection rate of the zone of interest that will test.Referring to Fig. 1.Every technical indicator of the present invention is: measurement range 10～500m
3/ d, 1 grade of measuring accuracy, withstand voltage 25MPa, 0～85 ℃ of working temperature, the longest test duration 2h, data capacity 64KB.Adopt 20 mouthfuls of wells of detection method rig-site utilization of the present invention test, full well yield and day water epiphase ratio error are lower than 2%, and the individual layer flow error is less than 5%, flow rate test one-time success rate 100%.The present invention has the error that can avoid the individual layer flow detection to produce fully, and measuring accuracy and detection efficiency height can be analyzed the error of ground water meter, the advantage that data are accurate, workload is few, detection speed is fast by online detection.
Description of drawings: Fig. 1 is the continuous flow curve synoptic diagram that detection method of the present invention produces, and P1, P2 relative discharge are promptly tested the flow of this zone of interest among the figure.
Embodiment: present embodiment is to adopt no seal section flowmeter, use common lifting means earlier flowmeter to be shipped to below the objective interval with steel wire, and then carry at the uniform velocity, on the speed carried be 20m/min, make progress successively, test out each laminar flow amount, carried on the flowmeter and carrying on stopping behind last zone of interest, at this moment the water injection rate of Ce Lianging is exactly the absolute water injection rate of full well.On the speed carried also can be 10m/min, 30m/min, 40m/min, 50m/min, 60m/min, 70m/min, 80m/min, 90m/min.
Claims (10)
1, separate injection well continuous flow detection method, it is characterized in that adopting no seal section flowmeter, use common lifting means earlier flowmeter to be shipped to below the objective interval with steel wire, and then carry at the uniform velocity, on the speed carried be 5～100m/min, make progress successively, test out each laminar flow amount, carried on the flowmeter and carrying on stopping behind last zone of interest, at this moment the water injection rate of Ce Lianging is exactly the absolute water injection rate of full well.
2, separate injection well continuous flow detection method according to claim 1 is characterized in that the speed of carrying is 10m/min.
3, separate injection well continuous flow detection method according to claim 1 is characterized in that the speed of carrying is 20m/min.
4, separate injection well continuous flow detection method according to claim 1 is characterized in that the speed of carrying is 30m/min.
5, separate injection well continuous flow detection method according to claim 1 is characterized in that the speed of carrying is 40m/min.
6, separate injection well continuous flow detection method according to claim 1 is characterized in that the speed of carrying is 50m/min.
7, separate injection well continuous flow detection method according to claim 1 is characterized in that the speed of carrying is 60m/min.
8, separate injection well continuous flow detection method according to claim 1 is characterized in that the speed of carrying is 70m/min.
9, separate injection well continuous flow detection method according to claim 1 is characterized in that the speed of carrying is 80m/min.
10, separate injection well continuous flow detection method according to claim 1 is characterized in that the speed of carrying is 90m/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021448604A CN1186596C (en) | 2002-11-13 | 2002-11-13 | Method for measuring continuous current flux of separate injection well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021448604A CN1186596C (en) | 2002-11-13 | 2002-11-13 | Method for measuring continuous current flux of separate injection well |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1415942A CN1415942A (en) | 2003-05-07 |
| CN1186596C true CN1186596C (en) | 2005-01-26 |
Family
ID=4750687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021448604A Expired - Fee Related CN1186596C (en) | 2002-11-13 | 2002-11-13 | Method for measuring continuous current flux of separate injection well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1186596C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356153C (en) * | 2004-11-07 | 2007-12-19 | 中国石化胜利油田有限公司纯梁采油厂 | Method for detecting leakage point of casing using storage type ultrasonic flowmeter |
| CN100359130C (en) * | 2004-11-09 | 2008-01-02 | 中国石化胜利油田有限公司纯梁采油厂 | Method for detecting sleeve fluid-loss point utilizing direct-reading ultrasound flowmete |
| CN101469607B (en) * | 2007-12-24 | 2012-07-04 | 中国石油大港油田第五采油厂 | Water injection technological process using three parameters test curve for layered pulling and running for water injection allocation |
| CN101270658B (en) * | 2008-04-30 | 2012-07-04 | 濮阳精钻石油工程技术有限公司 | Correlated flux injection section test method and construction technique |
| CN101457639B (en) * | 2008-12-31 | 2011-12-28 | 大庆油田有限责任公司 | Method for measuring and adjusting oilfield injection well by utilizing indication curve |
| CN102031967B (en) * | 2009-09-25 | 2015-03-18 | 贵州航天凯山石油仪器有限公司 | Layered flow test method and flow regulator used in same |
| CN103266879B (en) * | 2013-05-09 | 2016-08-03 | 中国石油天然气股份有限公司 | A kind of layer steam injection measures system and flow registering instrument |
-
2002
- 2002-11-13 CN CNB021448604A patent/CN1186596C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1415942A (en) | 2003-05-07 |
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| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050126 Termination date: 20101113 |