CN1088683A - High-precision high moisture content aqueous ratio meter - Google Patents
High-precision high moisture content aqueous ratio meter Download PDFInfo
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- CN1088683A CN1088683A CN 92114980 CN92114980A CN1088683A CN 1088683 A CN1088683 A CN 1088683A CN 92114980 CN92114980 CN 92114980 CN 92114980 A CN92114980 A CN 92114980A CN 1088683 A CN1088683 A CN 1088683A
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- sampler barrel
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- moisture content
- potential electrode
- water
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Abstract
The present invention relates to a kind of field produces well logging high-precision high moisture content aqueous ratio meter, to being the sampling formula moisture content meter that critical piece constitutes by sampler barrel, ball-and-seat, potential electrode and plane valve, taked lengthening sampler barrel length (400～2000mm), and making sampler barrel length is 2～10 times technical measures of potential electrode length, make the measurement upper limit of water percentage expand to 99%, measuring accuracy reaches ± and 1%, satisfied the requirement of implementing oil production technology measures such as wellfracturing, acidifying and change be stifled in the water percentage data of the producing well admission of high water-cut stage exploitation.
Description
The present invention relates to a kind of field produces well logging and use high-precision high moisture content aqueous ratio meter, it is particularly suitable for the measurement of waterflooding oil field high water-cut development period producing well water percentage.
In the water flooding process, the water percentage of oil well produced fluid can raise gradually, and to the middle and later periods of oil-field development, the production fluid water percentage of most of producing well surpasses 80%.At present, be used to measure the sampling formula moisture content meter of water ratio in oil well, mainly form by sampler barrel, ball-and-seat, potential electrode and plane valve.Because the sampler barrel effective length is 220mm, potential electrode length and sampler barrel same length, simultaneously for guaranteeing the life-span of potential electrode, potential electrode can not be planted bottom the sampler barrel, thereby the coaxial cylindrical capacitor two ends electric field that sampler barrel and potential electrode are constituted distorts, produce edge effect, causing the measurement of water ratio scope is 5～95%, and measuring accuracy is ± 5%.For guaranteeing the correct enforcement of oil production technology such as oil field compression fracture, acidifying and change be stifled, produce a desired effect, the measurement range of existing sampling formula moisture content meter and precision can not satisfy the measurement of water ratio needs of high water-cut development period oil well.
The invention provides a kind of oil well high-precision high moisture content aqueous ratio meter of the formula of taking a sample, it has overcome existing with the quasi-instrument measurement of water ratio upper limit and the low shortcoming of precision, make the measurement upper limit of water percentage reach 99%, precision is less than ± 1%, thereby satisfies oil field high water-cut development period producing well measurement of water ratio needs.
Task of the present invention takes following technical measures to realize: to being the moisture content meter that critical piece constitutes by sampler barrel, ball-and-seat, potential electrode and plane valve, the lengthening sampler barrel, making the sampling tube length is 400～2000mm, and sampler barrel length is 2～10 times of potential electrode length.The measurement lower limit of water percentage raises like this, but because the electric capacitance change of the cylindric capacitor that the variation of unit water percentage causes increases, has improved the measuring accuracy of water percentage; Simultaneously, because the change of sampler barrel and potential electrode length ratio, make edge effect and the measurement blind area that forms dwindles relatively, expanded the measurement upper limit of water percentage.
The present invention is described in further detail below in conjunction with accompanying drawing:
Accompanying drawing is the high-precision high moisture content aqueous ratio meter longitudinal sectional drawing.
A high-precision high moisture content aqueous ratio meter that is made of for critical piece sampler barrel 1, plane valve 2, potential electrode 3 and ball-and-seat 4, its sampler barrel length is 1000mm, and sampler barrel length and potential electrode length ratio are 5: 1.This moisture content meter measurement of water ratio scope is 80～99%, and measuring accuracy is less than ± 0.5%.
High-precision high moisture content aqueous ratio meter also can be made: sampler barrel length is 1000mm, and sampler barrel length and potential electrode length ratio are 2: 1.Such moisture content meter measurement of water ratio scope is 50～99%, and measuring accuracy is ± 1%.
More than two instantiations, reached the expansion measurement of water ratio upper limit, improve the purpose of measuring accuracy.Measure the water percentage of producing well at the oil field high water-cut development period and obtained satisfied effect, the data of being enrolled has satisfied the requirement of oil production technology measures such as implementing that wellfracturing, acidifying and change are blocked up.
Claims (3)
1, a kind of is the high-precision high moisture content aqueous ratio meter of the measurement producing well water percentage that constitutes of critical piece by sampler barrel, ball-and-seat, potential electrode and plane valve, it is characterized in that: the lengthening sampler barrel, making it length is 400～2000mm, and sampler barrel length is 2～10 times of potential electrode length.
2, according to the described high-precision high moisture content aqueous ratio meter of claim 1, it is characterized in that: the length of sampler barrel is 1000mm, and sampler barrel length and potential electrode length ratio are 2: 1.
3, according to the described high-precision high moisture content aqueous ratio meter of claim 1, it is characterized in that: the length of sampler barrel is 1000mm, and sampler barrel length and potential electrode length ratio are 5: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114980 CN1032936C (en) | 1992-12-25 | 1992-12-25 | High-precision high moisture content aqueous ratio meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92114980 CN1032936C (en) | 1992-12-25 | 1992-12-25 | High-precision high moisture content aqueous ratio meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1088683A true CN1088683A (en) | 1994-06-29 |
| CN1032936C CN1032936C (en) | 1996-10-02 |
Family
ID=4947207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92114980 Expired - Fee Related CN1032936C (en) | 1992-12-25 | 1992-12-25 | High-precision high moisture content aqueous ratio meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032936C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300576C (en) * | 2004-10-26 | 2007-02-14 | 大庆油田有限责任公司 | Analyzer for analyzing moisture in ground conductance |
| CN101967969A (en) * | 2010-10-22 | 2011-02-09 | 大庆油田有限责任公司 | High-resolution water cut meter based on distributary method |
| CN103104255A (en) * | 2013-01-22 | 2013-05-15 | 西安交通大学 | Device and method for measuring downhole liquid production profile flow and water holding capacity |
| CN104594890A (en) * | 2015-01-15 | 2015-05-06 | 燕山大学 | Dynamic full-water value measurement sampling trough for horizontal well |
| CN106246174A (en) * | 2016-08-12 | 2016-12-21 | 中国石油天然气集团公司 | A kind of column specific retention detection probe based on electromagnetic wave |
-
1992
- 1992-12-25 CN CN 92114980 patent/CN1032936C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300576C (en) * | 2004-10-26 | 2007-02-14 | 大庆油田有限责任公司 | Analyzer for analyzing moisture in ground conductance |
| CN101967969A (en) * | 2010-10-22 | 2011-02-09 | 大庆油田有限责任公司 | High-resolution water cut meter based on distributary method |
| CN103104255A (en) * | 2013-01-22 | 2013-05-15 | 西安交通大学 | Device and method for measuring downhole liquid production profile flow and water holding capacity |
| CN103104255B (en) * | 2013-01-22 | 2015-08-05 | 西安交通大学 | The device and method of production profile flow and specific retention under a kind of measuring well |
| CN104594890A (en) * | 2015-01-15 | 2015-05-06 | 燕山大学 | Dynamic full-water value measurement sampling trough for horizontal well |
| CN104594890B (en) * | 2015-01-15 | 2017-08-29 | 燕山大学 | One kind is used for the full water number measurement sampling groove of horizontal well performance |
| CN106246174A (en) * | 2016-08-12 | 2016-12-21 | 中国石油天然气集团公司 | A kind of column specific retention detection probe based on electromagnetic wave |
| CN106246174B (en) * | 2016-08-12 | 2019-06-11 | 中国石油天然气集团公司 | A kind of column specific retention detection probe based on electromagnetic wave |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1032936C (en) | 1996-10-02 |
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