CN201763328U - Compensation neutron logger - Google Patents
Compensation neutron logger Download PDFInfo
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- CN201763328U CN201763328U CN2010205330698U CN201020533069U CN201763328U CN 201763328 U CN201763328 U CN 201763328U CN 2010205330698 U CN2010205330698 U CN 2010205330698U CN 201020533069 U CN201020533069 U CN 201020533069U CN 201763328 U CN201763328 U CN 201763328U
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- acquisition processing
- processing module
- preamplifier
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Abstract
The utility model discloses a compensation neutron logger, comprising a shell and parts arranged in the shell (1): a metal insulation bottle (2); a neutron source (3); a detector (4); a preamplifier (7) connected with the detector (4); a collection process module (9) connected with the preamplifier and used for receiving and processing the output signal of the detector (4) amplified by the preamplifier (7) to obtain the void content data of the underground floor layer; a communication module (8) connected with the collection process module (9); wherein the detector (4), the preamplifier (7), the communication module (8) and the collection process module (9) are arranged in the metal insulation bottle (2) and the communication module (8) and the collection process module (9) are composed of integrated circuit modules. Using the structure, the power consumption is reduced, the high temperature resistance, reliability and accuracy of the compensation neutron logger is increased.
Description
Technical field
The utility model relates to a kind of logging instrument that is used to measure formation porosity, and particularly the neutron source of utilizing in the mine locating drilling well is measured the logger of formation porosity.
Background technology
Compensation neutron logger is a kind of 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 logging program commonly used is ECLIPS 5700, EX2CELL 2000 and HH2530 three big series, the logging system that three kinds of compensation neutron logger articulate has nothing in common with each other, data transfer mode is also different, but basic operating principle is identical: all be 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 big; therefore only be that partial circuit is packed in the metal dewar bottle; and then be sealed in the metal bearing shell, other circuit then can't be encapsulated in and realize the high temperature protection function in the metal dewar bottle.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 big, causes a bottle interior temperature to raise very fast.Two problems that above prior art exists have influenced the resistance to elevated temperatures of whole compensation neutron logger.
Summary of the invention
The purpose of this utility model is to provide a kind of heat-resisting quantity can better compensation neutron logger, very much not can put into the metal dewar bottle fully and causes whole instrument resistance to elevated temperatures difference and power consumption to cause the metal dewar bottle temperature too fast problem that raises greatly thereby can solve the circuit volume better.
According to an aspect of the present utility model, a kind of compensation neutron logger is provided, comprise housing and be arranged in the housing with lower member: the metal dewar bottle; Neutron source to the stratum given-ioff neutron; Probe, the down-hole epithermal neutron that the neutron of launching by measurement stratum and neutron source interacts and produces produces the relevant detection signal; The preamplifier that connects probe is used to amplify the detection signal of probe; The acquisition processing module that connects preamplifier is used to receive and handle the voidage data that the probe detection signal that amplifies through preamplifier obtains down-hole formation; The communication module that connects acquisition processing module is used to receive the ground order and sends to acquisition processing module and the down-hole formation degree of porosity data of acquisition processing module are sent to ground system; Probe, preamplifier, communication module, acquisition processing module place in the metal dewar bottle, and wherein communication module and acquisition processing module are made of integrated circuit modules.
The probe of this compensation neutron logger, preamplifier, communication module, acquisition processing module are integrated on the surface-mounted integrated circuit.
Also comprise the communication module and the acquisition processing module in the metal dewar bottle of this compensation neutron logger provide+5 volts of galvanic supply modules.
The probe of this compensation neutron logger is made up of lithium iodate crystal and helium 3 pipes.
This compensation neutron logger also comprise high-voltage control circuit that is positioned at the metal dewar bottle and the high pressure generator that the 3500V high-voltage pulse is provided to helium 3 pipes.
The acquisition processing module of this compensation neutron logger is made of two MSC1210 chips.
The communication module of this compensation neutron logger is made of two PSOC chips.
The preamplifier of this compensation neutron logger is arranged in the MSC1210 chip.
Compared with prior art, the beneficial effects of the utility model are: owing to high-voltage control circuit, high pressure generator, probe, preamplifier, communication module, acquisition processing module place in the metal dewar bottle fully, thereby can improve the resistance to elevated temperatures of compensation neutron logger, and then strengthen the well logging timeliness of compensation neutron logger.Again because communication module, the power supply of acquisition processing module in the metal dewar bottle be+5 volts of direct currents, thereby reduced power consumption, made the interior rate of rise in temperature of metal dewar bottle slack-off.
Description of drawings
Fig. 1 is the sectional view of the compensation neutron logger that provides of the utility model embodiment;
Fig. 2 is the circuit theory diagrams that the utility model embodiment provides;
Fig. 3 is the structural representation of the integrated circuit that provides of the utility model embodiment;
Description of reference numerals: 1-housing; 2-metal dewar bottle; 3-neutron source; The 4-probe; The 41-lithium iodate crystal; 42-helium 3 pipes; The 5-supply module; The 6-surface-mounted integrated circuit; The 7-preamplifier; The 8-communication module; The 9-acquisition processing module; The 10-high-voltage control circuit; The 101-high-pressure modular; 11-master MSC chip; Secondary MSC of 12-chip; 13-master PSOC chip; Secondary PSOC of 14-chip.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is elaborated, should be appreciated that following illustrated preferred embodiment only is used for description and interpretation the utility model, and be not used in this utility model of qualification.
Fig. 1 is a schematic diagram of the present utility model, and as shown in Figure 1, compensation neutron logger comprises: housing 1 and be arranged in the housing 1 with lower member: metal dewar bottle 2; Neutron source 3 to the stratum given-ioff neutron; Probe 4, the down-hole epithermal neutron that the neutron of being launched by measurement stratum and neutron source 3 interacts and produces produces the relevant detection signal; The preamplifier 7 that connects probe 4 is used to amplify the detection signal of probe 4; The acquisition processing module 9 that connects preamplifier 7 is used to receive and handle the degree of porosity data that probe 4 detection signals that amplify through preamplifier 7 obtain down-hole formation; The communication module 8 that connects acquisition processing module 9 is used to receive the ground order and sends to acquisition processing module 9 and the down-hole formation degree of porosity data of acquisition processing module 9 are sent to ground system; Probe (4), preamplifier (7), communication module (8), acquisition processing module (9) place on the interior surface-mounted integrated circuit 6 of metal dewar bottle (2), and wherein communication module (8) and acquisition processing module (9) are made of integrated circuit modules.
Fig. 2 is circuit theory diagrams of the present utility model, and as shown in Figure 2, the epithermal neutron data are input in the acquisition processing module 9 through preamplifier 7 amplifications under the probe 4 collection measuring wells.Acquisition processing module 9 obtains down-hole formation voidage data through computing and is stored in the internal memory.After communication module 8 receives the order on ground, input to behind the transform coding in the acquisition processing module 9, acquisition processing module 9 outputs in the communication module 8 after reading out down-hole formation voidage data according to the ground order, and 8 pairs of these data of communication module carry out sending to ground system after the code conversion.Supply module 5 provides+5 volts of dc sources for communication module 8 and acquisition processing module 9.
Fig. 3 is an electrical block diagram of the present utility model, and as shown in Figure 3, communication module 8 is made up of main PSOC chip 13 and secondary PSOC chip 14, and acquisition processing module 9 is made up of main MSC1210 chip 11 and secondary MSC1210 chip 12.Main PSOC chip 13, secondary PSOC chip 14, main MSC1210 chip 11, secondary MSC1210 chip 12, probe 4, preamplifier 7 are integrated on the surface-mounted integrated circuit 6.The ground order inputs in the main PSOC chip 13, and main PSOC chip 13 inputs in the main MSC1210 chip 11 after with the ground command process.The epithermal neutron data input in main MSC1210 chip 11 and the secondary MSC1210 chip 12 through preamplifier 7 under the probe 4 collection measuring wells.Secondary MSC1210 chip 12 exports the data of input in the main MSC1210 chip 11 to.Main MSC1210 chip 11 calculates and handles the detection signal of the probe 3 that amplifies through preamplifier 7, and will obtain down-hole formation degree of porosity data after the computing and be stored in the internal memory.Main MSC1210 chip 11 inputs to the above-mentioned data that obtain in the main PSOC chip 13 according to the ground order, is sent to ground system behind 13 pairs of these data processing of main PSOC chip treatment conversion coding.The operating voltage of surface-mounted integrated circuit 6 is+5V; Preamplifier 7 is provided by the circuit in the MSC1210 chip.
During work, the utility model directly is articulated on 5700 logging systems.
The major part of 5700 logging systems is made up of downhole instrument and ground system two parts.The transmission means of ground and underground signal is a cable transmission, and downhole instrument is finished the measurement and the collection of data, the result transmission after the computing to ground, ground system to the down-hole catch that the information of coming receives, handles, demonstration etc.
5700WTS telemetry system modulation coding mode adopts the Manchester coding.M2 order and M2, M5, M7 data all are the Manchester codings, but the signal that transmits on cable is an AMI Manchester coding.This is because AMI Manchester coding has two advantages.At first, the voltage of AMI Manchester coding is not entirely at high state of value, so little than the power of Manchester coding.Secondly, the waveform of AMI Manchester coding make that like this high-frequency harmonic composition in the signal significantly reduces than the Manchester coding, thereby the distortion of signal is less, so the more graceful Chester of bit error rate sign indicating number is low near sinusoidal wave.
After the down-hole instrument was gone into the well, ground system constantly sent the M2 order to the down-hole instrument, and the M2 order has serious deformation through after the remote band-limited transmission to the down-hole, so will can be input in the instrument of down-hole after the shaping by 3514 communication pipe nipples.Also have a supply module 5 in the 3514 communication pipe nipples, the voltage transitions that ground is sent becomes-+5 volts DC voltages, by cable this voltage is offered the interior surface-mounted integrated circuit 6 of metal dewar bottle 2 then.
The communication module 8 of compensation neutron logger receives the ground order and it is become the Manchester sign indicating number by AMI Manchester code conversion.The signal that transmits on the cable is an AMI Manchester coding, need convert thereof into the Manchester coding.In the present embodiment, to amplify 8 to 256 times from the AMI Manchester waveform on ground by the PGA that sets main PSOC chip 13, be hysteresis comparator by the general-purpose simulation piece of setting main PSOC13 then, the AMI Manchester sign indicating number after amplifying is converted to the Manchester sign indicating number.The ground order converts the Manchester sign indicating number to through communication module 8, is transferred to acquisition processing module.
Acquisition processing module 9 becomes 16 packet with the ground command conversion that converts the Manchester sign indicating number to of communication module 8 inputs.One of 2 TIMER in the main MSC1210 chip 11 are set at the edge to be caught another and is set at high level numeration, promptly can obtain a series of cycle and pwm value, according to the direction of mid point saltus step, calculate 16 bit data of Manchester code data stream representative then.
Acquisition processing module 9 parses surface instruction from 16 ground command packet.16 packet first eight bits is the address, and back eight is order.Whether the acquisition processing module at first address in the judgment data bag is the compensation neutron logger corresponding address, if not, then order is not processed.If compensation neutron logger is issued in opposite judgement ground order, then handle accordingly according to order.
When acquisition processing module 9 receives the order of ground system output high voltage control, high-voltage control circuit 101 will be transferred to after the command decode, high-voltage control circuit 101 is under the control of Ground Control signal, produce high voltage control signal, be used to control high-pressure modular 101 and produce the 3500V high pressure of supplying with 42 work of helium 3 pipes.
Acquisition processing module 9 sends to the down-hole formation degree of porosity data in the data storage in the communication module 8 according to the ground order.If the ground order is the passback data, acquisition processing module 9 sense data from memory then, utilize the PWM function in the MSC1210 chip 11 then, set its cycle and pulsewidth, and at any time according to the encoded binary number, the setting of adjustment cycle and pulsewidth just can produce very 20 Manchester encoded data streams of standard.Acquisition processing module 9 sends to the passback data of Manchester sign indicating number in the communication module 8.
Communication module 8 becomes the passback data transaction AMI Manchester sign indicating number to be sent to ground.Set the COUNTER among the main PSOC chip 13, form one 5 delicate and 2 2.5 delicate monostables, when the level saltus step of Manchester, trigger just having generated AMI Manchester like this.Communication module 8 is sent to ground system with the passback data of AMI Manchester sign indicating number by cable.
In sum, the utility model is by being integrated in communication module 8, acquisition processing module 9, probe 4, preamplifier 7, high-voltage control circuit 10, high pressure generator 101 on the surface-mounted integrated circuit 6 and being encapsulated in the metal dewar bottle 2, thereby improved the heat-resisting quantity of compensation neutron logger, the reliability that has strengthened instrument and accuracy.The communication module 8 of metal dewar bottle 2 of the present utility model in addition, the power supply of acquisition processing module 9 are+5 volts of direct currents, power consumption is little, thereby guaranteed that the temperature rising in the metal dewar bottle 2 can be not too fast, further strengthened the heat-resisting quantity of compensation neutron logger.
Although above the utility model is had been described in detail, the utility model is not limited thereto, and those skilled in the art of the present technique can carry out various modifications according to principle of the present utility model.Therefore, all modifications of being done according to the utility model principle all should be understood to fall into protection domain of the present utility model.
Claims (8)
1. compensation neutron logger, comprise housing (1) and be arranged in the housing (1) with lower member:
Metal dewar bottle (2);
Neutron source (3) to the stratum given-ioff neutron;
Probe (4), the down-hole epithermal neutron that the neutron of being launched by measurement stratum and neutron source (3) interacts and produces produces the relevant detection signal;
Connect the preamplifier (7) of probe (4), be used to amplify the detection signal of probe (4);
The acquisition processing module (9) that connects preamplifier (7) is used for receiving and handling the degree of porosity data that probe (4) detection signal that amplifies through preamplifier (7) obtains down-hole formation;
The communication module (8) that connects acquisition processing module (9) is used to receive the ground order and sends to acquisition processing module (9) and the down-hole formation degree of porosity data of acquisition processing module (9) are sent to ground system;
It is characterized in that: described probe (4), preamplifier (7), communication module (8), acquisition processing module (9) place in the metal dewar bottle (2), and wherein communication module (8) and acquisition processing module (9) are made of integrated circuit modules.
2. compensation neutron logger according to claim 1 is characterized in that: described probe (4), preamplifier (7), communication module (8), acquisition processing module (9) are integrated on the surface-mounted integrated circuit (6).
3. compensation neutron logger according to claim 2 is characterized in that also comprising that communication module (8) and the acquisition processing module (9) in metal dewar bottle (2) provides+5 volts of galvanic supply modules (5).
4. according to each described compensation neutron logger of claim 1 to 3, it is characterized in that: described probe (4) is made up of lithium iodate crystal (41) and helium 3 pipes (42).
5. according to each described compensation neutron logger of claim 1 to 3, it is characterized in that described logging instrument also comprises high-voltage control circuit (10) that is positioned at metal dewar bottle (2) and the high pressure generator (101) that the 3500V high-voltage pulse is provided to helium 3 pipes.
6. according to each described compensation neutron logger of claim 1 to 3, it is characterized in that: described acquisition processing module (9) is made of two MSC1210 chips.
7. according to each described compensation neutron logger of claim 1 to 3, it is characterized in that: described communication module (8) is made of two PSOC chips.
8. compensation neutron logger according to claim 6 is characterized in that: described preamplifier is arranged in the MSC1210 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205330698U CN201763328U (en) | 2010-09-17 | 2010-09-17 | Compensation neutron logger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205330698U CN201763328U (en) | 2010-09-17 | 2010-09-17 | Compensation neutron logger |
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| Publication Number | Publication Date |
|---|---|
| CN201763328U true CN201763328U (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205330698U Expired - Lifetime CN201763328U (en) | 2010-09-17 | 2010-09-17 | Compensation neutron logger |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604538A (en) * | 2014-11-03 | 2016-05-25 | 中国石油集团长城钻探工程有限公司 | Compensated neutron logging instrument with controllable neutron source and control circuit of same |
| CN105909242A (en) * | 2016-06-28 | 2016-08-31 | 清华大学 | Integrated data acquirer for acoustic logging |
| CN106324302A (en) * | 2016-10-28 | 2017-01-11 | 西安石油大学 | Simulated load circuit and neutron instrumental simulated generator load |
-
2010
- 2010-09-17 CN CN2010205330698U patent/CN201763328U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604538A (en) * | 2014-11-03 | 2016-05-25 | 中国石油集团长城钻探工程有限公司 | Compensated neutron logging instrument with controllable neutron source and control circuit of same |
| CN105604538B (en) * | 2014-11-03 | 2024-02-02 | 中国石油集团长城钻探工程有限公司 | Controllable neutron source compensation neutron logging instrument and control circuit thereof |
| CN105909242A (en) * | 2016-06-28 | 2016-08-31 | 清华大学 | Integrated data acquirer for acoustic logging |
| CN106324302A (en) * | 2016-10-28 | 2017-01-11 | 西安石油大学 | Simulated load circuit and neutron instrumental simulated generator load |
| CN106324302B (en) * | 2016-10-28 | 2023-03-31 | 西安石油大学 | Analog load circuit and neutron instrument analog generator load based on same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180125 Address after: 300356 24, Tianjin Industrial Park, eight Li Town, Jinnan District, Jianshe Road Patentee after: (Tianjin) Petroleum Engineering Technology Service Co., Ltd. Address before: 100070 Beijing city Fengtai District Haiying Road No. 1, No. 4 Simon floor East Patentee before: Jiai Technology (Beijing) Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee after: Ji AI (Tianjin) Petroleum Engineering Co., Ltd. Address before: 300356 Tianjin Jinnan District eight Li Tai town Industrial Park No. 24 Jianshe Road. Patentee before: (Tianjin) Petroleum Engineering Technology Service Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110316 |