CN201857961U - Imager provided with double-layer radial distributed array conducting probe sensor - Google Patents
Imager provided with double-layer radial distributed array conducting probe sensor Download PDFInfo
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- CN201857961U CN201857961U CN201020617311XU CN201020617311U CN201857961U CN 201857961 U CN201857961 U CN 201857961U CN 201020617311X U CN201020617311X U CN 201020617311XU CN 201020617311 U CN201020617311 U CN 201020617311U CN 201857961 U CN201857961 U CN 201857961U
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Abstract
The utility model relates to an imager provided with a double-layer radial distributed array conducting probe sensor, and mainly solves the problems existing in the conventional fluid imagers that the interface distribution graph and the sectional drawing cannot be accurately provided, and the error of water holdup is high. The imager is characterized in that at least five supporting arms (2) are arranged, wherein two conducting probes (3) are fixed on each supporting arm (2) and are axially parallel to a casing (1) when the supporting arms (2) are stretched. The imager can intuitively provide the interface distribution graph and the sectional drawing, and has small error of water holdup.
Description
Technical field
The utility model relates to a kind of imager that utilizes sensor measurement horizontal well production profile, has the imager of double-deck radial distribution array conducting probe sensor specifically.
Background technology
Present measurement for land horizontal well production profile, the main metering system that adopts afflux, though the metering system of afflux has improved the resolution ratio of sensor to flow and measurement of water ratio by improving flow velocity, but the profit that this mode changes under the normal production status sometimes distributes, and can't provide specific retention, flow interface and sectional drawing under the proper flow state.And the metering system that adopts the conducting probe sensor has realized that under full hole to the measurement of specific retention, the influence of fluid flow state is less, can reflect the proper flow state of fluid basically, provides fluid boundary and the sectional drawing and the flow pattern fluidised form of well.At present external Schlumberger company develops based on conducting probe fluid imager, but because instrument adopts is 4 conducting probe structures, the number of probes rareness, so be difficult to provide exactly interface distributions figure and sectional drawing, the specific retention error that obtains is big.
Summary of the invention
Can't provide interface distributions figure and sectional drawing, deficiency that the specific retention error is big exactly in order to overcome existing fluid imager, the utility model provides a kind of imager with double-deck radial distribution array conducting probe sensor, this imager can provide interface distributions figure and sectional drawing intuitively, and the specific retention error is little.
The technical solution of the utility model is: a kind of imager with double-deck radial distribution array conducting probe sensor, comprise circumferential uniform support arm on housing, the housing outer wall, the quantity of described support arm is at least 5, be fixed with two conducting probes on the support arm, and support arm when opening conducting probe parallel with the housing axial direction.
The end of described support arm on the housing outer wall, axially has the strip groove corresponding with support arm by bolted splice on the housing outer wall.
The quantity of described support arm can be 12.
The utlity model has following beneficial effect: owing to take such scheme, the quantity of this imager support arm is at least 5, and two conducting probes are installed on each support arm, like this, increased the quantity of conducting probe, make measurement more accurate, can provide the fluid boundary figure and the sectional drawing of well exactly, and reduce the specific retention error.Simultaneously, support arm opens during duty, the parallel and housing of conducting probe, and like this, the influence of fluid flow state is less, can reflect the proper flow state of fluid basically.
Description of drawings:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation that support arm closes up state;
Fig. 3 is the conducting probe distribution map of embodiment one.
1-housing among the figure, 2-support arm, 3-conducting probe.
The specific embodiment:
The utility model is described in further detail below in conjunction with accompanying drawing:
By shown in Figure 1, a kind of imager with double-deck radial distribution array conducting probe sensor comprises circumferential uniform support arm 2 on housing 1, housing 1 outer wall, and the quantity of described support arm 2 is at least 5, compare with existing conductivity sensor, increased the quantity of support arm.Be fixed with two conducting probes 3 on each support arm 2, and conducting probe 3 was parallel with housing 1 axial direction when support arm 2 opened, conducting probe 3 was accommodated in sensor housing inside when support arm 2 closed up, and as shown in Figure 2, external surface was consistent with housing 1 external diameter when support arm 2 closed up.
During the imager duty, support arm 2 is opened, and forms on the two-layer concentric circles evenly distributed respectively conducting probe array, conducting probe 3 is all arranged on every layer, and conducting probe 3 directions are parallel with the axial direction of instrument.Each conducting probe 3 constitutes the loop by water in the fluid and tool housing, the equivalent resistance of probe is less when probe is in the water, the equivalent resistance of probe is equivalent to infinity when probe is in the oil, when probe is in profit and alternately changes, shows alternately changing of equiva lent impedance.Based on this principle, can judge the residing position of probe by the variation of measuring equiva lent impedance, thereby be implemented under the level that provide specific retention simultaneously, experimental result shows at flow 200m to the differentiation of oil-water interfaces position
3The specific retention error that/d obtains with interior this sensor is in 10%, and the rule of connecting the measured impedance variations of probe is judged flow pattern and fluidised form near the oil-water interfaces.Because conducting probe 3 and instrument axially parallel during duty, this imager can be measured specific retention under full hole, the influence of fluid flow state is less, the proper flow state that can reflect fluid basically, provide the fluid boundary and the sectional drawing of well intuitively, further improve and imaging algorithm further perfect by picking rate, this probe array can also provide the flow pattern and the fluidised form of fluid under the level conditions.
Support arm 2 can be such with the connected mode of housing 1: described support arm 2 is L-shaped basically, the minor face of its " L " places imager housing 1 inside, the end of " L " shape corner is hinged on housing 1 outer wall by bolt 5 on the support arm 2, support arm 2 can be rotated around bolt 5, the end of " L " shape minor face is stuck in housing 1 inside, guarantees conducting probe 3 and housing 1 axially parallel when support arm 2 opens.The strip groove 4 corresponding with support arm 2 axially arranged on housing 1 outer wall, and the width of groove 4 and the degree of depth should be held support arm 2 and conducting probe 3, can embed housing fully when support arm 2 is closed up, and support arm 2 external surfaces are consistent with housing 1 external diameter.
Theoretically, the quantity of support arm 2 is many more, and the quantity of corresponding conducting probe 3 is many more, and then measurement result is accurate more, but considers the factors such as diameter of imager, and the quantity of support arm 2 can not be ad infinitum many.As preferably, provide embodiment one below: the quantity of support arm 2 is 12, axis projection figure when Fig. 3 is 12 for support arm 2 quantity, under the complete open configuration of support arm, it is the distribution map of conducting probe 3, conducting probe 3 forms two concentric circles diametrically, and 12 conducting probes are arranged on each concentric circles.
Claims (3)
1. imager with double-deck radial distribution array conducting probe sensor, comprise circumferential uniform support arm (2) on housing (1), housing (1) outer wall, it is characterized in that: the quantity of described support arm (2) is at least 5, be fixed with two conducting probes (3) on the support arm (2), and support arm (2) when opening conducting probe (3) parallel with housing (1) axial direction.
2. the imager with double-deck radial distribution array conducting probe sensor according to claim 1, it is characterized in that: the end of described support arm (2) is hinged on housing (1) outer wall by bolt (5), and the strip groove (4) corresponding with support arm (2) axially arranged on housing (1) outer wall.
3. the imager with double-deck radial distribution array conducting probe sensor according to claim 1 and 2, it is characterized in that: the quantity of described support arm (2) is 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020617311XU CN201857961U (en) | 2010-11-22 | 2010-11-22 | Imager provided with double-layer radial distributed array conducting probe sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020617311XU CN201857961U (en) | 2010-11-22 | 2010-11-22 | Imager provided with double-layer radial distributed array conducting probe sensor |
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| Publication Number | Publication Date |
|---|---|
| CN201857961U true CN201857961U (en) | 2011-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020617311XU Expired - Fee Related CN201857961U (en) | 2010-11-22 | 2010-11-22 | Imager provided with double-layer radial distributed array conducting probe sensor |
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| CN (1) | CN201857961U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064993A (en) * | 2015-08-06 | 2015-11-18 | 北京航空航天大学 | Vertical well water-content measurement method based on conductivity probe array information fusion |
| CN105114054A (en) * | 2015-08-06 | 2015-12-02 | 北京航空航天大学 | Vertical well flow pattern recognition method based on conducting probe array voting |
| CN107389742A (en) * | 2017-06-19 | 2017-11-24 | 天津大学 | Cross-sectional distribution formula sensor array and method for oil-in-water emulsion measurement |
| CN114753829A (en) * | 2022-03-26 | 2022-07-15 | 西南石油大学 | Novel method for calculating water holdup of horizontal well based on array holdup instrument |
-
2010
- 2010-11-22 CN CN201020617311XU patent/CN201857961U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064993A (en) * | 2015-08-06 | 2015-11-18 | 北京航空航天大学 | Vertical well water-content measurement method based on conductivity probe array information fusion |
| CN105114054A (en) * | 2015-08-06 | 2015-12-02 | 北京航空航天大学 | Vertical well flow pattern recognition method based on conducting probe array voting |
| CN107389742A (en) * | 2017-06-19 | 2017-11-24 | 天津大学 | Cross-sectional distribution formula sensor array and method for oil-in-water emulsion measurement |
| CN114753829A (en) * | 2022-03-26 | 2022-07-15 | 西南石油大学 | Novel method for calculating water holdup of horizontal well based on array holdup instrument |
| CN114753829B (en) * | 2022-03-26 | 2024-05-24 | 西南石油大学 | Novel method for calculating water holdup of horizontal well based on array holdup meter |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20191122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |