CN1529185A - Tracer well logying instrument - Google Patents
Tracer well logying instrument Download PDFInfo
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- CN1529185A CN1529185A CNA2003101076264A CN200310107626A CN1529185A CN 1529185 A CN1529185 A CN 1529185A CN A2003101076264 A CNA2003101076264 A CN A2003101076264A CN 200310107626 A CN200310107626 A CN 200310107626A CN 1529185 A CN1529185 A CN 1529185A
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Abstract
The invention improves on structure of tracer well logger. As development of oil field, water body washes out stratum in well for long time so as to form macropore channel. Thus, isotope granules enter into depth of stratum directly, weakening display of isotope abnormity and causing well logging error. The invention includes tube body (1), releaser for tracer (2), No.1 probe (3), No.2 probe (4), cable (5). The up end of the tube body (1) is connected to cable (5) fixedly, and low end of the tube body (1) is connected to releaser for tracer (2), No.1 probe (3), No.2 probe (4) fixedly. Releasing opening (6) is setup at the releaser for tracer (2). The invention overcomes disadvantages of well logger existed, providing features of simple structure, easy of use, flexible operation, low measuring limit (3m3/d), accurate measuring result and low measuring cost.
Description
Technical field: the present invention relates to the improvement of Tracer well logying instrument structure.
Background technology: at present, the main tool that can measure the outer zonal injection amount of injection allocation well casing is isotope tracer logging instrument and neutron oxygen activation logging instrument.It is more that the isotope tracer logging instrument is used, but along with Oilfield developing, owing to be subjected to washing away of water body for a long time, form a macropore at turn up the soil layer position of well injection, after the isotope particle arrives, directly enter the depths, stratum, isotope anomaly is shown weaken, cause the well logging error.In addition, also be subjected to deep penetrating perforating, pressure break, stain, scurry groove, the influence of leakage and injection well fluid viscosity, well logging result's accuracy is affected, and concerning this part well, the tagging tester can not satisfy the demand of injection profile logging.Neutron oxygen activation logging instrument is the new product that recent development is come out, and it can accurately be measured the outer zonal injection amount of oil pipe, has obtained application in the oil field, (is generally 10m but the measurement lower limit of this well logger is higher
3About/d), and testing cost is higher, makes its application scale be subjected to certain restriction.
Summary of the invention: the objective of the invention is to develop a kind of Tracer well logying instrument, it has simple in structure, easy to use, flexible operation, log data is accurate, logging cost is low characteristics.The present invention comprises body 1, tracer agent release 2,3, No. two probe 4 of probe, cable 5; The upper end of body 1 and cable 5 are connected and fixed, and the lower end of body 1 is fixedly connected with tracer agent release 2,3 and No. two probes 4 of a probe, has liberation port 6 on the tracer agent release 2.The present invention has overcome the shortcoming that existing well logger exists, and has simple in structure, easy to use, flexible operation, the low (3m of measurement lower limit
3/ d), log data is accurate, logging cost is low advantage.
Description of drawings: Fig. 1 is an one-piece construction synoptic diagram of the present invention, Fig. 2 is the structural representation of embodiment two, Fig. 3 is the structural representation of embodiment three, Fig. 4 is the measuring principle synoptic diagram, Fig. 5 is the well logging synoptic diagram of general well, Fig. 6 returns the well logging synoptic diagram of well on being, Fig. 7 is the well logging synoptic diagram of injection allocation well.
Embodiment one: the (see figure 1) present embodiment is made up of body 1, tracer agent release 2, probe 3, No. two probes 4, cables 5; The upper end of body 1 and cable 5 are connected and fixed, fixedly connected with the upper end of tracer agent release 2 in the lower end of body 1, fixedly connected with the upper end of a probe 3 in the lower end of tracer agent release 2, fixedlying connected with the upper end of No. two probes 4 in the lower end of a probe 3, has liberation port 6 on the tracer agent release 2.
Embodiment two: the difference of (see figure 2) present embodiment and embodiment one is, fixedly connected with the upper end of a probe 3 in the lower end of body 1, fixedlying connected with the lower end of a probe 3 in the upper end of tracer agent release 2, fixedlys connected with the upper end of No. two probes 4 in the lower end of tracer agent release 2.Other composition is identical with embodiment one with annexation.
Embodiment three: the difference of (see figure 3) present embodiment and embodiment one is, fixedly connected with the upper end of a probe 3 in the lower end of body 1, fixedlying connected with the upper end of No. two probes 4 in the lower end of a probe 3, fixedlys connected with the upper end of tracer agent release 2 in the lower end of No. two probes 4.Other composition is identical with embodiment one with annexation.
Embodiment one is to embodiment three, and the different connections of 3, No. two probes 4 of a probe and several positions of tracer agent release 2 can adapt to the well logging needs of different injection well, further improve measurement effect.
Embodiment four: the difference of (see figure 1) present embodiment and embodiment one is, it has increased magnetic locator 7, magnetic locator 7 is fixed between body 1 and the tracer agent release 2, and other composition is identical with embodiment one with annexation.The magnetic locator 7 that increases can make the off-position of tracer agent release 2 in oil pipe more accurate, to improve the accuracy of well logging.
Embodiment five: the difference of (see figure 1) present embodiment and embodiment four is that it has increased centralizer 8 again, and centralizer 8 is fixed on the curved surface of body 1, and other composition is identical with embodiment four with annexation.The centralizer 8 that increases can make tracer agent release 2 be in position placed in the middle in oil pipe, is convenient to the release of tracer agent.
Embodiment six: the difference of (see figure 1) present embodiment and embodiment five is that it has increased weight section 9 again, and weight section 9 is fixed on the upper end of body 1, and other composition is identical with embodiment five with annexation.The weight section 9 that increases can make the present invention when well logging, overcomes buoyancy of liquid, improves decline rate, has eliminated the log data error that causes inadequately because of decline rate.
Embodiment seven: the difference of (see figure 2) present embodiment and embodiment four is that magnetic locator 7 is fixed on body 1 and pops one's head between 3 for No. one, and other composition is identical with embodiment one with annexation.
Principle of work: (see figure 4) of the present invention is that the tracer agent with certain polymerization property is discharged in the oil pipe by the tracer agent release, tracer agent will be migrated together along with current, when it flows through eccentric water distributor, a part will flow to the oil jacket space by water nozzle and enter each water accepting layer at last, after tracer agent is released to pit shaft, the well logger that has two probes is transferred the position that to flow through to tracer agent rapidly, when the tracer agent in oil jacket space is flowed through these two probes, the output meeting of probe is along with the mobile generation respective change of oil jacket space tracer agent, therefore on, output exportable flowing noise signal at random after processing of circuit of downstream probe, because this two-way noise signal has correlativity, can calculate tracer agent by the method for related operation and flow through two and pop one's head in the used time.Because the spacing of two probes is certain, thereby can calculate the translational speed of tracer agent.According to all down-hole situations, mainly can be divided into following three kinds of situations: 1, to the measurement (see figure 5) of general well; 2, to returning the measurement (see figure 6) of well under the general injection condition; 3, to the measurement (see figure 7) of injection allocation well.Adopt different logging methods at different situations.(inflow direction is meant the inflow direction in oil jacket space and the empty sleeve pipe to adopt the measuring sequence opposite with the inflow direction during well logging, do not comprise the inflow direction in the oil pipe), flow down the influence that causes the back measuring point to avoid downstream owing to last time measure residual tracer agent; When the oil jacket space was opposite with water (flow) direction in the oil pipe, well logger can be parked in the arrival of the location pending tracer agent that discharges tracer agent; When the oil jacket space is identical with water (flow) direction in the oil pipe, transfer the top appropriate location of well logger to the measured layer position, the speed of transferring instrument is fast as far as possible, in order to avoid tracer agent just flow through the position that probe is parked before instrument arrives, causes surveying less than signal; When measuring, enough stand-by period be arranged, the stand-by period will be longer than the minimum flow (3m that this well logger allows
3/ the time that d) will wait for.This well logger can be finished the measurement to all down-hole situations.Carry out the measurement of oil jacket space flow during well logging earlier, carry out the measurement of flow in the oil pipe then, flow between each water nozzle all will be measured in other words, carry or transfer instrument to next measuring point water nozzle at every turn on measuring behind the measuring point and discharge tracer agent for above about 10 meters, the each power-on time of tracer agent release is about 0.5 second, do not have the layer position of flow for suspection, wait for more than 10 minutes.
Claims (7)
1, Tracer well logying instrument, it comprises body (1), tracer agent release (2), a probe (3), No. two probes (4), cables (5); The upper end and the cable (5) that it is characterized in that body (1) are connected and fixed, and the lower end of body (1) is fixedly connected with tracer agent release (2), a probe (3) and No. two probes (4), has liberation port (6) on the tracer agent release (2).
2, Tracer well logying instrument according to claim 1, fixedly connected with the upper end of a probe (3) in the lower end that it is characterized in that body (1), fixedlying connected with the lower end of a probe (3) in the upper end of tracer agent release (2), fixedlys connected with the upper end of No. two probes (4) in the lower end of tracer agent release (2).
3, Tracer well logying instrument according to claim 1, fixedly connected with the upper end of a probe (3) in the lower end that it is characterized in that body (1), fixedlying connected with the upper end of No. two probes (4) in the lower end of a probe (3), fixedlys connected with the upper end of tracer agent release (2) in the lower end of No. two probes (4).
4, Tracer well logying instrument according to claim 1 is characterized in that it has increased magnetic locator (7), and magnetic locator (7) is fixed between body (1) and the tracer agent release (2).
5, Tracer well logying instrument according to claim 1 is characterized in that it has increased centralizer (8) again, and centralizer (8) is fixed on the curved surface of body (1).
6, Tracer well logying instrument according to claim 1 is characterized in that it has increased weight section (9) again, and weight section (9) is fixed on the upper end of body (1).
7, Tracer well logying instrument according to claim 1 is characterized in that magnetic locator (7) is fixed between a body (1) and the probe (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101076264A CN1529185A (en) | 2003-10-21 | 2003-10-21 | Tracer well logying instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101076264A CN1529185A (en) | 2003-10-21 | 2003-10-21 | Tracer well logying instrument |
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| Publication Number | Publication Date |
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| CN1529185A true CN1529185A (en) | 2004-09-15 |
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| CNA2003101076264A Pending CN1529185A (en) | 2003-10-21 | 2003-10-21 | Tracer well logying instrument |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392633A (en) * | 2011-11-07 | 2012-03-28 | 中国石油大学(华东) | New method for releasing underground radioactive tracer and device thereof |
| CN102587896A (en) * | 2012-03-15 | 2012-07-18 | 中国石油天然气股份有限公司 | Mechanical water-finding water-plugging channeling-checking composite pipe column |
| CN104481516A (en) * | 2014-11-26 | 2015-04-01 | 杭州泛太石油设备科技有限公司 | Continuous tracer logging method and logger thereof |
| CN107269264A (en) * | 2017-08-21 | 2017-10-20 | 西安基米克电子科技有限责任公司 | A kind of pair of water holding spike combination logging tool |
| CN108343409A (en) * | 2018-02-23 | 2018-07-31 | 东北石油大学 | A kind of efficient measuring and regulating method suitable for oil field layered injected system |
| CN111219184A (en) * | 2020-01-08 | 2020-06-02 | 河南省科学院同位素研究所有限责任公司 | Method for performing injection profile logging on nitrogen injection gas well by utilizing radioactive isotope |
-
2003
- 2003-10-21 CN CNA2003101076264A patent/CN1529185A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392633A (en) * | 2011-11-07 | 2012-03-28 | 中国石油大学(华东) | New method for releasing underground radioactive tracer and device thereof |
| CN102392633B (en) * | 2011-11-07 | 2014-07-16 | 中国石油大学(华东) | New method for releasing underground radioactive tracer and device thereof |
| CN102587896A (en) * | 2012-03-15 | 2012-07-18 | 中国石油天然气股份有限公司 | Mechanical water-finding water-plugging channeling-checking composite pipe column |
| CN102587896B (en) * | 2012-03-15 | 2015-08-05 | 中国石油天然气股份有限公司 | Mechanical water-finding water-plugging channeling-checking composite pipe column |
| CN104481516A (en) * | 2014-11-26 | 2015-04-01 | 杭州泛太石油设备科技有限公司 | Continuous tracer logging method and logger thereof |
| CN107269264A (en) * | 2017-08-21 | 2017-10-20 | 西安基米克电子科技有限责任公司 | A kind of pair of water holding spike combination logging tool |
| CN108343409A (en) * | 2018-02-23 | 2018-07-31 | 东北石油大学 | A kind of efficient measuring and regulating method suitable for oil field layered injected system |
| CN111219184A (en) * | 2020-01-08 | 2020-06-02 | 河南省科学院同位素研究所有限责任公司 | Method for performing injection profile logging on nitrogen injection gas well by utilizing radioactive isotope |
| CN111219184B (en) * | 2020-01-08 | 2023-03-14 | 河南省科学院同位素研究所有限责任公司 | Method for performing injection profile logging on nitrogen injection gas well by utilizing radioactive isotope |
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