CN203847092U - High-temperature slim-hole compensation neutron logging instrument - Google Patents
High-temperature slim-hole compensation neutron logging instrument Download PDFInfo
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- CN203847092U CN203847092U CN201320875636.1U CN201320875636U CN203847092U CN 203847092 U CN203847092 U CN 203847092U CN 201320875636 U CN201320875636 U CN 201320875636U CN 203847092 U CN203847092 U CN 203847092U
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Abstract
The utility model relates to the technical field of logging equipment, in particular to a high-temperature slim-hole compensation neutron logging instrument which comprises a shell. The high-temperature slim-hole compensation neutron logging instrument is characterized in that a neutron source component and a thermos component, a logging device is arranged in the thermos component, and maximum outer diameter of the shell is not larger than 76mm. The maximum outer diameter of the shell is not larger than 76mm, so that the logging instrument is enabled to be suitable for logging slim-hole wells; the logging device is mounted inside the thermos component, so that size of the compensation neutron logging instrument is reduced, length of the compensation neutron logging instrument is reduced, high-temperature resistance of the compensation neutron logging instrument is improved, and logging time effect of the compensation neutron logging instrument is improved.
Description
Technical field
The utility model relates to logging equipment technical field, relates in particular to a kind of high temperature slim-hole compensation neutron logger.
Background technology
Compensation neutron logger is the one of radioactive logging instrument.It has the probe of the thermal neutron-epithermal neutron of two different spacings, determines the voidage on stratum by the count rate ratio of long and short spacing detector.At present, domestic conventional logging program is ECLIPS5700, EX2CELL2000 and the large series of HH2530 tri-, the logging system that three kinds of compensation neutron logger articulate is different, data transfer mode is also different, but basic operating principle is identical: be all the probe of the thermal neutron-epithermal neutron of two different spacings, determine the voidage on stratum by the count rate ratio of long and short spacing detector.But such compensation neutron logger adopts the integrated components and parts of middle and small scale in a large number; device uses many and volume is large; therefore be only that partial circuit is packed in metal heat insulation bottle; and then be sealed in a metal bearing shell, other circuit cannot be encapsulated in and in metal heat insulation bottle, realize high temperature protection function.In addition, the power supply of existing compensation neutron logger has+5 volts of power supplys ,+12 volts of power supplys ,-12 volts of power supplys, power consumption is large, causes a bottle interior temperature to raise very fast.
Two problems that above prior art exists, have affected the resistance to elevated temperatures of whole compensation neutron logger.Existing well logging apparatus, because size is larger, cannot meet the on-the-spot needs that present bored borehole diameter is more and more less, hole condition becomes increasingly complex simultaneously.
Utility model content
The purpose of this utility model is to propose a kind of high temperature slim-hole compensation neutron logger, and it is low in energy consumption, and circuit module height is integrated, and temperature performance is high, and volume is little, and tool length is short, and can measure the less well of diameter.
For reaching this object, the utility model by the following technical solutions:
A kind of high temperature slim-hole compensation neutron logger, comprises housing, wherein, is provided with Neutron source assembly and vacuum flask assembly in described housing, in described vacuum flask assembly, is provided with well logging apparatus; Described housing maximum outside diameter is not more than 76mm.
As a kind of preferred version of above-mentioned high temperature slim-hole compensation neutron logger, described well logging apparatus comprises probe, preamplifier, acquisition processing module and communication module;
The down-hole epithermal neutron that the neutron interaction that described probe is launched by measurement stratum and Neutron source assembly produces, produce corresponding detection signal, described detection signal passes to acquisition processing module after preamplifier amplifies, described acquisition processing module carries out data processing and obtains the degree of porosity data of down-hole formation to the signal after amplifying, finally by described communication module, degree of porosity data are passed to ground system.
As a kind of preferred version of above-mentioned high temperature slim-hole compensation neutron logger, described housing maximum outside diameter is 76mm.
As a kind of preferred version of above-mentioned high temperature slim-hole compensation neutron logger, described probe, preamplifier, communication module, acquisition processing module are integrated on a circuit board.
As a kind of preferred version of above-mentioned high temperature slim-hole compensation neutron logger, described well logging apparatus is also included as all parts being arranged on circuit board the galvanic supply unit of 5V is provided.
As a kind of preferred version of above-mentioned high temperature slim-hole compensation neutron logger, described vacuum flask assembly comprises: bottle, is arranged on top connection and the lower contact of two sections of bottles, and is arranged on the heat-barrier material in vacuum flask.
As a kind of preferred version of above-mentioned high temperature slim-hole compensation neutron logger, described probe comprises the first probe and the second probe, described the first probe and the second probe are all by shell, and helium xenon pipe is in the enclosure set, and are arranged on the tube connector composition of housing exterior.
As a kind of preferred version of above-mentioned high temperature slim-hole compensation neutron logger, one end of described housing is provided with helmet, and one end is provided with plug.
The beneficial effects of the utility model are: the application provides a kind of high temperature slim-hole compensation neutron logger, and its housing maximum outside diameter is not more than 76mm, therefore can be applicable to slim hole well to measure.Well logging apparatus is placed in to dewar bottle component internal simultaneously, therefore reduced the volume of compensation neutron logger, shorten the tool length of compensation neutron logger, thereby improved the resistance to elevated temperatures of compensation neutron logger, and then strengthened the well logging timeliness of compensation neutron logger.
Brief description of the drawings
Fig. 1 is the structural representation of high temperature slim-hole compensation neutron logger of the present utility model;
Fig. 2 is the structural representation of vacuum flask assembly of the present utility model.
Wherein:
1: housing; 2: Neutron source assembly; 3: vacuum flask assembly; 4: well logging apparatus; 5: helmet; 6: plug;
31: bottle; 32: top connection; 33: lower contact; 34: heat-barrier material; 35: the first probes; 36: the second probes.
Detailed description of the invention
Further illustrate the technical solution of the utility model below in conjunction with accompanying drawing and by detailed description of the invention.
As shown in Figure 1 and Figure 2, present embodiment provides a kind of high temperature slim-hole compensation neutron logger, and it is applicable to downhole parameters to measure, and is particularly useful for slim hole well to measure.
Above-mentioned high temperature slim-hole compensation neutron logger, comprises housing 1, wherein, in housing 1, be provided with Neutron source assembly 2 and vacuum flask assembly 3, in vacuum flask assembly 3, be provided with well logging apparatus, housing maximum outside diameter is not more than 76mm, is 76mm as the diameter of the maximum outside diameter of preferred housing 1.76mm described herein refers to the diameter of housing 1 maximum outside diameter.
Because the maximum outside diameter of present embodiment middle shell 1 is 76mm or is not more than 76mm, therefore, this well logging apparatus 4 is applicable to slim hole well to measure.
The well logging apparatus of present embodiment is arranged in vacuum flask assembly 3 simultaneously, makes the well logging apparatus 4 that present embodiment provides have higher resistance to elevated temperatures.
The course of work of above-mentioned high temperature slim-hole compensated neutron log device is, Neutron source assembly 2 is to bottom given-ioff neutron, neutron and stratum interact and produce epithermal neutron, the control of well logging apparatus 4 base area plane systems is carried out acquisition and processing to epithermal neutron, and by data information transfer after treatment to ground system.
Well logging apparatus 4 comprises probe, preamplifier, acquisition processing module and communication module.The down-hole epithermal neutron that the neutron interaction that probe is launched by measurement stratum and Neutron source assembly 2 produces, produce corresponding detection signal, detection signal passes to acquisition processing module after preamplifier amplifies, acquisition processing module carries out data processing and obtains the degree of porosity data of down-hole formation to the signal after amplifying, finally by communication module, degree of porosity data are passed to ground system.
It should be noted that, communication module passes to downhole data information the function of ground system except having, also there is the function that receives ground system control information, after the control information on the ground of its reception, can transmit the control information of ground system to well logging apparatus and Neutron source assembly, and then realize the work of ground system control well logging apparatus and Neutron source assembly.
As preferably, probe, preamplifier, communication module, acquisition processing module are integrated on a circuit board.Thus, can provide the integrated level of well logging apparatus, and then the volume of reduction well logging apparatus.
Well logging apparatus is also included as all parts being arranged on circuit board the galvanic supply unit of 5V is provided.By the direct current of 5v is provided for each parts of well logging apparatus, the power consumption that can reduce well logging apparatus, reduces the calorific value of well logging apparatus.
Vacuum flask assembly 3 comprises: bottle 31, is arranged on top connection 32 and the lower contact 33 at bottle 31 two ends, and is arranged on the heat-barrier material 34 of 3 li of vacuum flask assemblies.
Probe comprises the first probe 35 and the second probe 36, and upper the first probe 35 and the second probe 36 are all by shell, and helium xenon pipe is in the enclosure set, and is arranged on the tube connector composition of housing exterior.
For convenient, logging instrument is lifted and interior instrument is protected, one end of housing 1 is provided with helmet, and the other end is provided with plug.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present utility model, within these modes all will fall into protection domain of the present utility model.
Claims (6)
1. a high temperature slim-hole compensation neutron logger, comprises housing, it is characterized in that, is provided with Neutron source assembly and vacuum flask assembly in described housing, in described vacuum flask assembly, is provided with well logging apparatus; Described housing maximum outside diameter is not more than 76mm;
Described well logging apparatus comprises probe, preamplifier, acquisition processing module and communication module; And described probe, preamplifier, communication module, acquisition processing module are integrated on a circuit board.
2. high temperature slim-hole according to claim 1 compensated neutron log, is characterized in that, described housing maximum outside diameter is 76mm.
3. high temperature slim-hole according to claim 1 compensated neutron log, is characterized in that, described well logging apparatus is also included as all parts being arranged on circuit board the galvanic supply unit of 5V is provided.
4. high temperature slim-hole according to claim 1 compensated neutron log, is characterized in that, described vacuum flask assembly comprises: bottle, is arranged on top connection and the lower contact of two sections of bottles, and is arranged on the heat-barrier material in vacuum flask.
5. high temperature slim-hole according to claim 1 compensated neutron log, it is characterized in that, described probe comprises the first probe and the second probe, described the first probe and the second probe are all by shell, helium xenon pipe is in the enclosure set, and is arranged on the tube connector composition of housing exterior.
6. high temperature slim-hole compensation neutron logger according to claim 1, is characterized in that, one end of described housing is provided with helmet, and one end is provided with plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875636.1U CN203847092U (en) | 2013-12-26 | 2013-12-26 | High-temperature slim-hole compensation neutron logging instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320875636.1U CN203847092U (en) | 2013-12-26 | 2013-12-26 | High-temperature slim-hole compensation neutron logging instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847092U true CN203847092U (en) | 2014-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320875636.1U Expired - Fee Related CN203847092U (en) | 2013-12-26 | 2013-12-26 | High-temperature slim-hole compensation neutron logging instrument |
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| Country | Link |
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| CN (1) | CN203847092U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223943A (en) * | 2016-08-27 | 2016-12-14 | 吉艾（天津）石油工程技术服务有限公司 | A kind of self-priming hot type The Small Well CNT |
-
2013
- 2013-12-26 CN CN201320875636.1U patent/CN203847092U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106223943A (en) * | 2016-08-27 | 2016-12-14 | 吉艾（天津）石油工程技术服务有限公司 | A kind of self-priming hot type The Small Well CNT |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140924 Termination date: 20181226 |