CN2864091Y - Multifunctional current logging instrumentation - Google Patents
Multifunctional current logging instrumentation Download PDFInfo
- Publication number
- CN2864091Y CN2864091Y CNU2005200796455U CN200520079645U CN2864091Y CN 2864091 Y CN2864091 Y CN 2864091Y CN U2005200796455 U CNU2005200796455 U CN U2005200796455U CN 200520079645 U CN200520079645 U CN 200520079645U CN 2864091 Y CN2864091 Y CN 2864091Y
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- CN
- China
- Prior art keywords
- pipe nipple
- accelerator
- neutron
- neutron production
- current logging
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to a multifunctional current logging instrumentation comprising an upper neutron generator and a lower neutron generator, a remote short section and a detector short section, inwhich the detector short section comprises at least three gamma detectors set between the upper neutron generator and the lowe neutron generator, the bottom two gamma detectors can not only use as flow detectors but also as neutron lifetime detectors; the mechanical joints between the upper neutron generator, the lower neutron generator, the remote short section and the detctor short section are detachable mechanical joints and the electronic connection between them is slipneedle and slipring connection. The utility model settles the defect of little measurement range of the present flow logging instrument, the unconvenient regulation and low measurement precision, and has the advantages of a wide measurement range, high efficiency, convenicent connection and maintenance and high reliability.
Description
Technical field
The utility model relates to a kind of oil reservoir logging instrument.
Background technology
At present, the existing oxygen activation current instrument in oil field adopts single accelerator for neutron production structure, once goes into the well and can only survey a kind of current of direction.When needs are measured the other direction current, must from well, propose instrument, be inverted on ground or use another instrument instead and go into the well again, the site work amount that so just has been multiplied, and can not change the direction of measuring current at any time.When adopting three probe schemes, measurement category is restricted, and can not adapt to the measuring condition such as the big water injection rate of offshore oilfield; When adopting generator in the centre, probe is in the scheme at two, and it is unfavorable that the low discharge in low porosity and low permeability area is measured.
Summary of the invention
The utility model purpose provides a kind of multi-functional current logging instrument of measuring multiple downhole parameters, and it has solved the shortcoming that the prior art measurement category is little, adjusting is inconvenient, certainty of measurement is low.
Technical solution of the present utility model is: a kind of multi-functional current logging instrument, comprise neutron source, remote measurement pipe nipple 1, probe pipe nipple 3, its special character is, described neutron source comprises accelerator for neutron production 2 and following accelerator for neutron production 5, and described probe pipe nipple 3 comprises at least three gamma detectors 4 that are arranged between accelerator for neutron production 2 and the following accelerator for neutron production 5.
The above-mentioned mechanical connection of going up between accelerator for neutron production 2, following accelerator for neutron production 5, remote measurement pipe nipple 1, the probe pipe nipple 3 is detachable mechanical connection, and its sliding pin slip ring that electrically connects as each other connects.
Above-mentioned detachable mechanical connection is for being threaded.
Above-mentioned probe pipe nipple 3 comprises four gamma detectors 4 that are arranged between accelerator for neutron production 2 and the following accelerator for neutron production 5.
Above-mentioned remote measurement pipe nipple 1 comprises a kind of or multiple arbitrarily in device for pressure measurement, natural gamma measurement mechanism, temperature survey device, the cover tube coupling hoop sniffer.
The utility model has the advantages that:
1, measurement category is wide.The utility model comprises gamma detector, neutron lifetime probe, neutron oxygen activation probe, device for pressure measurement, natural gamma measurement mechanism, temperature survey device, CCL device (cover tube coupling hoop sniffer) etc., the detectable multiple parameter of once going into the well, measurement category is wide.
2, efficient height.The utility model adopts the spread pattern of bineutron generator and multi-detector array, the detectable multiple parameter of once going into the well, simultaneously, also comprise in the probe pipe nipple and can improve measurement efficient simultaneously as two probes of gamma detector and neutron lifetime probe.
3, pollution-free.The utility model does not adopt any radioactive tracer, does not have problems such as contamination, sedimentation, pollution.
4, can be applicable to the well logging of single core or multicore cable.
5, the electrical connection between each pipe nipple adopts sliding pin slip ring to connect, and easy to connect, combination strengthens.
6, the mechanical connection between each pipe nipple adopts detachable connection, when certain pipe nipple breaks down, can take off separately and repairs or replaces, and is easy to maintenance, the reliability height.
The explanation of accompanying drawing drawing
Fig. 1 is the structural representation that the utility model adopts four gamma detectors;
Fig. 2 is the structural representation that the utility model adopts three gamma detectors;
Wherein: 1-remote measurement pipe nipple, the last accelerator for neutron production of 2-, 3-probe pipe nipple, 4-gamma detector, accelerator for neutron production under the 5-.
The specific embodiment
Referring to accompanying drawing 1, the multi-functional current logging instrument of the utility model comprises neutron source, remote measurement pipe nipple 1, probe pipe nipple 3, wherein neutron source comprises accelerator for neutron production 2 and following accelerator for neutron production 5, probe pipe nipple 3 comprises four gamma detectors 4 that are arranged between accelerator for neutron production 2 and the following accelerator for neutron production 5, adopt four gamma detectors 4 as water flow detector when wherein logging instrument is surveyed current, logging instrument only adopts two gamma detectors 4 of close accelerator for neutron production down as the neutron lifetime probe when surveying neutron lifetime.Remote measurement pipe nipple 1 is except the remote measurement communication task that carries out down-hole and ground, and according to actual instructions for use, it also comprises a kind of or multiple arbitrarily in device for pressure measurement, natural gamma measurement mechanism, temperature survey device, the CCL device.
Referring to accompanying drawing 2, the multi-functional current logging instrument of the utility model comprises neutron source, remote measurement pipe nipple 1, probe pipe nipple 3, wherein neutron source comprises accelerator for neutron production 2 and following accelerator for neutron production 5, probe pipe nipple 3 comprises three gamma detectors 4 that are arranged between accelerator for neutron production 2 and the following accelerator for neutron production 5, adopt three gamma detectors 4 as water flow detector when wherein logging instrument is surveyed current, logging instrument only adopts two gamma detectors 4 of close accelerator for neutron production down as the neutron lifetime probe when surveying neutron lifetime.
No matter in the probe pipe nipple several gamma detectors are arranged, both can be used as water flow detector near two gamma detectors of accelerator for neutron production 5 down and used, also can be used as the neutron lifetime probe and use, can switch according to the instruction on ground at work.
Adopt detachable mechanical connection between last accelerator for neutron production, following accelerator for neutron production, remote measurement pipe nipple, the probe pipe nipple, be threaded such as employing, after the mutual fastening that is threaded between each adjacent pipe nipple, its sliding pin slip ring each other is compacted equally, realizes between each pipe nipple or the electrical connection between each circuit.
This programme has adopted the bineutron generator, the a string gamma detector of therebetween constitutes so-called full combining structure, and cooperate with the other technologies measure, realized once going into the well, can survey the bimodal current logging instrument of current or following current, this change is only by instruction, and is therefore very convenient, improved the well logging effect greatly.
The spacing coverage that multi-detector of the present utility model is gathered pipe nipple is big, and its medium and small person approximates 350mm, and big person approximates 2200mm, for current are all like this up and down.
Claims (6)
1, a kind of multi-functional current logging instrument, comprise neutron source, remote measurement pipe nipple (1), probe pipe nipple (3), it is characterized in that: described neutron source comprises accelerator for neutron production (2) and following accelerator for neutron production (5), and described probe pipe nipple (3) comprises at least three gamma detectors (4) that are arranged between accelerator for neutron production (2) and the following accelerator for neutron production (5).
2, multi-functional current logging instrument according to claim 1, it is characterized in that: the described mechanical connection of going up between accelerator for neutron production (2), following accelerator for neutron production (5), remote measurement pipe nipple (1), the probe pipe nipple (3) is detachable mechanical connection, and its sliding pin slip ring that electrically connects as each other connects.
3, multi-functional current logging instrument according to claim 2, it is characterized in that: described detachable mechanical connection is for being threaded.
4, according to claim 1 or 2 or 3 described multi-functional current logging instruments, it is characterized in that: described remote measurement pipe nipple (1) comprises a kind of or multiple arbitrarily in device for pressure measurement, natural gamma measurement mechanism, temperature survey device, the cover tube coupling hoop sniffer.
5, according to claim 1 or 2 or 3 described multi-functional current logging instruments, it is characterized in that: described probe pipe nipple (3) comprises four gamma detectors (4) that are arranged between accelerator for neutron production (2) and the following accelerator for neutron production (5).
6, multi-functional current logging instrument according to claim 5 is characterized in that: described remote measurement pipe nipple (1) comprises a kind of or multiple arbitrarily in device for pressure measurement, natural gamma measurement mechanism, temperature survey device, the cover tube coupling hoop sniffer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200796455U CN2864091Y (en) | 2005-11-04 | 2005-11-04 | Multifunctional current logging instrumentation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200796455U CN2864091Y (en) | 2005-11-04 | 2005-11-04 | Multifunctional current logging instrumentation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2864091Y true CN2864091Y (en) | 2007-01-31 |
Family
ID=37676544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200796455U Expired - Lifetime CN2864091Y (en) | 2005-11-04 | 2005-11-04 | Multifunctional current logging instrumentation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2864091Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080538A (en) * | 2010-12-16 | 2011-06-01 | 中国石油集团钻井工程技术研究院 | Neutron emission control method, device and short joint for while-drilling neutron porosity measurement |
| CN105672981A (en) * | 2016-01-11 | 2016-06-15 | 沈阳弗雷泽物探技术有限公司 | High-precision oil-well residual oil gas logging instrument based on controllable source technology and method |
| CN108131132A (en) * | 2017-11-27 | 2018-06-08 | 中国石油天然气股份有限公司 | Instrument and method for testing underground gas flow |
-
2005
- 2005-11-04 CN CNU2005200796455U patent/CN2864091Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080538A (en) * | 2010-12-16 | 2011-06-01 | 中国石油集团钻井工程技术研究院 | Neutron emission control method, device and short joint for while-drilling neutron porosity measurement |
| CN102080538B (en) * | 2010-12-16 | 2013-01-09 | 中国石油集团钻井工程技术研究院 | Neutron emission control method, device and short joint for while-drilling neutron porosity measurement |
| CN105672981A (en) * | 2016-01-11 | 2016-06-15 | 沈阳弗雷泽物探技术有限公司 | High-precision oil-well residual oil gas logging instrument based on controllable source technology and method |
| CN108131132A (en) * | 2017-11-27 | 2018-06-08 | 中国石油天然气股份有限公司 | Instrument and method for testing underground gas flow |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070131 |
|
| EXPY | Termination of patent right or utility model |