CN2502268Y - Total borehold fluid impedance water-holding rate sensor - Google Patents
Total borehold fluid impedance water-holding rate sensor Download PDFInfo
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- CN2502268Y CN2502268Y CN 01251403 CN01251403U CN2502268Y CN 2502268 Y CN2502268 Y CN 2502268Y CN 01251403 CN01251403 CN 01251403 CN 01251403 U CN01251403 U CN 01251403U CN 2502268 Y CN2502268 Y CN 2502268Y
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- insulator
- pole
- fluid impedance
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Abstract
The utility model discloses a total borehold fluid impedance water-holding rate sensor, which relates to a sensor for measuring oil and water two phase liquid infiltration rate, comprising an upward insulator(4), a bearing body(5), an insulation lining(6), an upward pole(3), a middle pole(8) and an upward pole(12). The insulation lining covers the outer part of the bearing body; the downward and middle poles cover the outer part of insulation lining; the upward insulator joins one end of the middle pole(8); a sampling room(16) is constructed between the upward insulator and insulation lining(6);the exterior ends(8a) of the downward pole(12) and the middle pole(8) form a pair of measuring poles; the interior ends(8b) of the upward pole(3) and the middle pole(8) form a pair of checking poles. The sensor has the advantages of being free from the limit of the reliability of the restrictor during the measurement, not destroying the natural conditions of liquid in the well, being capable of realizing point testing, continuous measuring and convenient positioning of the instrument, etc.
Description
Technical field: the utility model relates to a kind of sensor of measuring oil-water two-phase flow body water holdup.
Background technology: the surveying work of oil well liquid-producing water holdup has significance to the dynamic monitoring in oil field.Present domestic oil well productivity is lower, based on machine-pumped oil well, the sensor of existing measurement water holdup is to be main logging mode to cross the survey of annular space afflux point, it has the following disadvantages at work: 1, measure the restriction that is subjected to the current collector reliability, if current collector has leakage, just influenced the reliability of apparatus measures greatly; 2, because afflux is measured, destroy the state of nature of in-hole fluid, reduced the objectivity that downhole fluid is estimated; 3, the repeatedly repeated open of current collector and pack up operation and reduced the reliability of instrument, the well logging success ratio is reduced: 4, because the metering system that adopts afflux point to survey, so measuring point of every change, all must carry out opening and packing up of a current collector, current collector is difficult for guaranteeing in the consistance of each measuring point, make the measurement comparability between each measuring point reduce, influence the reliability of explanation results.
Summary of the invention: the utility model has designed a kind of full hole fluid impedance water holdup sensor, and it has solved existing sensor owing to adopting annular space afflux point to survey a series of problems that cause for main logging mode.The utility model comprises upper insulator 4, supporting mass 5, insulating bushing 6, top electrode 3, middle electrode 8, bottom electrode 12, be with insulating bushing 6 in the outside of supporter 5, bottom electrode 12 and middle electrode 8 are enclosed within the outside of insulating bushing 6, an end of electrode 8 during upper insulator 4 is connected, constitute sampling hut 16 between upper insulator 4 and the insulating bushing 6, sampling hut 16 is connected with the outside, be with top electrode 3 on the insulating bushing 6 in sampling hut 16, the outer end 8a of bottom electrode 12 and middle electrode 8 forms a pair of potential electrode, and the inner 8b that top electrode 3 and middle electrode 8 are positioned at sampling hut 16 forms a pair of verification electrode.The mode that the utility model needn't adopt annular space afflux point to survey is measured water holdup, so it has following advantage: not restricted by the current collector reliability when 1, measuring; 2, can not destroy the state of nature of in-hole fluid, improve the objectivity that downhole fluid is estimated; 3, can realize some a survey and a continuous coverage simultaneously, logging technique is greatly simplified, only carry out opening just of a centralizer after instrument is gone into the well and to log well,, also not influence the measurement of this well, well logging success ratio height even centralizer can not be packed up; 4, instrument can navigate to the purpose measuring point easily in the down-hole, and the measurement state that is consistent, and measures the reliability enhancing thereby make.
Description of drawings: Fig. 1 is a structural representation of the present utility model, and Fig. 2 is circuit theory diagrams of the present utility model, and Fig. 3 is the utility model measuring principle figure.
Embodiment: present embodiment is made up of last short circuit head 1, top electrode 3, upper insulator 4, supporter 5, insulating bushing 6, middle electrode 8, register pin 9, middle insulator 10, register pin 11, bottom electrode 12, lower insulator 13, register pin 14, following short circuit head 15.Be connected with short circuit head 1 and following short circuit head 15 respectively at the two ends up and down of supporter 5.Be with insulating bushing 6 in the outside of supporter 5, stainless bottom electrode 12 is enclosed within the outside of the lower end of insulating bushing 6, and stainless middle electrode 8 is enclosed within the outside at insulating bushing 6 middle parts.Between bottom electrode 12 and following short circuit head 15, be provided with lower insulator 13, insulator 10 between bottom electrode 12 and middle electrode 8, being provided with, register pin 11 is fixedlyed connected lower insulator 13 with following short circuit head 15, register pin 14 is fixedlyed connected with middle insulator 10 bottom electrode 12 respectively with lower insulator 13.One end of upper insulator 4 is connected with middle electrode 8, the other end of upper insulator 4 is connected with last short circuit head 1, constitute sampling hut 16 between upper insulator 4 and the insulating bushing 6, sampling hut 16 is connected with the outside by through hole 7 on the middle electrode 8 and the through hole 2 on the last short circuit head 1.Be with stainless top electrode 3 on the insulating bushing 6 in sampling hut 16.On the outer end 8a of bottom electrode 12 and middle electrode 8, be connected with operational amplifier 17-1 in the circuit 17, make the outer end 8a of bottom electrode 12 and middle electrode 8 form a pair of potential electrode 19 by lead.Be arranged at top electrode 3 and middle electrode 8 on the inner 8b of sampling hut 16 and be connected with the operational amplifier 17-1 of circuit 17, make the inner 8b of top electrode 3 and middle electrode 8 form a pair of verification electrode 20 by lead.This sensor and circuit 17 interfaces are as shown in Figure 2, liquid generation driving source 18 makes potential electrode 19 produce electric signal and pass to operational amplifier 17-1 in the well, pass to AC/DC changeover switch 17-2, secondary amplifier 17-3, voltage to frequency converter 17-4 and power amplifier 17-5 then successively, after output unit 17-6 output.Its measuring principle is: potential electrode and verification electrode are in series, are provided with the alternation constant voltage, utilize voltage divider principle, detect the water percentage variation of fluid in the sleeve pipe according to the change in voltage of sensor measurement part.Fig. 3 is the sensor measurement principle schematic, and A, B are two electrodes of measure portion, and C, D are two electrodes of correction portion.Z
OwBe the impedance of measure portion, Z
wIt is the impedance of correction portion.The measure portion of sensor and the impedance phase of correction portion are connected, resulting impedance is applied alternating voltage V
s, can thermometrically both end voltage V partly
o
Claims (7)
1, full hole fluid impedance water holdup sensor, it comprises upper insulator (4), supporting mass (5), insulating bushing (6), top electrode (3), middle electrode (8), bottom electrode (12), it is characterized in that being with insulating bushing (6) in the outside of supporter (5), bottom electrode (12) and middle electrode (8) are enclosed within the outside of insulating bushing (6), upper insulator (4) is connected an end of middle electrode (8), constitute sampling hut (16) between upper insulator (4) and the insulating bushing (6), sampling hut (16) is connected with the outside, be with top electrode (3) on the insulating bushing (6) in sampling hut (16), the outer end (8a) of bottom electrode (12) and middle electrode (8) forms a pair of potential electrode, and the inner (8b) that top electrode (3) and middle electrode (8) are positioned at sampling hut (16) forms a pair of verification electrode.
2, full hole fluid impedance water holdup sensor according to claim 1 is characterized in that being connected with respectively at the two ends up and down of supporter (5) short circuit head (1) and following short circuit head (15).
3, full hole fluid impedance water holdup sensor according to claim 2, it is characterized in that between bottom electrode (12) and following short circuit head (15), being provided with lower insulator (13), between bottom electrode (12) and middle electrode (8), be provided with middle insulator (10), register pin (11) is fixedlyed connected lower insulator (13) with following short circuit head (15), register pin (14) is fixedlyed connected with middle insulator (10) bottom electrode (12) respectively with lower insulator (13).
4, full hole fluid impedance water holdup sensor according to claim 2 is characterized in that the other end of upper insulator (4) is connected with last short circuit head (1).
5, full hole fluid impedance water holdup sensor according to claim 4 is characterized in that sampling hut (16) is connected with the outside by through hole (7) on the middle electrode (8) and the through hole (2) on the last short circuit head (1).
6,, it is characterized in that going up by lead and be connected with operational amplifier (17-1) in the circuit (17) in the outer end (8a) of bottom electrode (12) and middle electrode (8) according to claim 1,4 described full hole fluid impedance water holdup sensors.
7,, it is characterized in that the inner (8b) that is arranged in sampling hut (16) at top electrode (3) and middle electrode (8) upward is connected with the operational amplifier (17-1) of circuit (17) by lead according to claim 1,4 described full hole fluid impedance water holdup sensors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01251403 CN2502268Y (en) | 2001-11-09 | 2001-11-09 | Total borehold fluid impedance water-holding rate sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01251403 CN2502268Y (en) | 2001-11-09 | 2001-11-09 | Total borehold fluid impedance water-holding rate sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2502268Y true CN2502268Y (en) | 2002-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01251403 Expired - Fee Related CN2502268Y (en) | 2001-11-09 | 2001-11-09 | Total borehold fluid impedance water-holding rate sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN2502268Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696951B (en) * | 2009-10-10 | 2013-02-13 | 中国海洋石油总公司 | Fluid resistivity and conductivity probe |
| CN104594890A (en) * | 2015-01-15 | 2015-05-06 | 燕山大学 | Dynamic full-water value measurement sampling trough for horizontal well |
| CN107345482A (en) * | 2017-06-19 | 2017-11-14 | 天津大学 | A kind of oil-water two-phase flow oil-in-water emulsion specific retention differential pressure measurement method |
-
2001
- 2001-11-09 CN CN 01251403 patent/CN2502268Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696951B (en) * | 2009-10-10 | 2013-02-13 | 中国海洋石油总公司 | Fluid resistivity and conductivity probe |
| 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 |
| CN107345482A (en) * | 2017-06-19 | 2017-11-14 | 天津大学 | A kind of oil-water two-phase flow oil-in-water emulsion specific retention differential pressure measurement method |
| CN107345482B (en) * | 2017-06-19 | 2020-08-18 | 天津大学 | Differential pressure measurement method for water holdup of oil-water two-phase flow oil-in-water emulsion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20020724 Termination date: 20101109 |