CN206114724U - Simulation load circuit and because neutron instrument simulative generator load of this circuit - Google Patents
Simulation load circuit and because neutron instrument simulative generator load of this circuit Download PDFInfo
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- CN206114724U CN206114724U CN201621190873.4U CN201621190873U CN206114724U CN 206114724 U CN206114724 U CN 206114724U CN 201621190873 U CN201621190873 U CN 201621190873U CN 206114724 U CN206114724 U CN 206114724U
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Abstract
The utility model discloses a simulation load circuit and because neutron instrument simulative generator load of this circuit, including resistance R1, ground resistance R2 is connected to resistance R1 one end, and the other end is connected with 3kv power module and electric capacity C1's one end respectively, and the electric capacity C1 other end passes through electric capacity C2 connection ground resistance R3, the utility model discloses when carrying out the instrument debugging, because the connection not actual neutron tube, can not lead to the fact harm, behind the command execution, can test out correct communication wave form with oscilloscope from communication nipple joint upper end power supply part, follow the measurement numerical value of ground software window can reading magnetic localization, temperature, gamma, if appear unusually, then detect according to the pointwise of signal communication flow at mode under the condition of dismountable urceolus, until pinpointing the problems, connect the inspection the joining in marriage of whole string of instrument of being convenient for, improve maintenance efficiency, makes whole string of instrument send in indoor order and detect whole completions.
Description
Technical field
This utility model belongs to producing well well logging through casing Instrument technology field, and in particular to a kind of analogue load circuit and
Neutron instrument simulative generator based on the circuit is loaded.
Background technology
Oil field at home exploitation at present enters into High water cut, high recovery percent of reserves development late stage stage, and underground oil and water zonation is more
Complicated, remaining oil distribution high degree of dispersion, residual production potential is difficult to tap the latent power.Cased well remaining oil saturation logging technique, increasingly receives
It is current to cross the test of sleeve pipe saturation or based on nuclear logging method to the favor of geomatics engineer and reservoir engineer, pulse
Neutron-neutron (PNN) instrument have diameter it is little, can through tubing log and the features such as double detector, reservoir oil saturation is commented
Substantially, at home the land each oil field in ocean widely uses the aspect application effects such as valency, searching potentiality gas-bearing formation and Water Flooding Layer identification, though
So the instrument can ensure work progress safety using being controllable neutron source, but because of neutron irradiation safety problem, on-the-spot test is required
Given-ioff neutron thermodynamic state verification can be just carried out below 50 meters of G.I.H, it is not little that instrument must be then put into diameter by earth base inspection
In 1.5m water pots, forbid to carry out hitting subpattern in the case of the unshielded safety in ground, therefore the instrument cannot enter indoors
Row entirety joint debugging and inspection.
The content of the invention
In order to solve the above problems, the purpose of this utility model is to provide a kind of analogue load circuit and based on the circuit
Neutron instrument simulative generator is loaded, for whole string equipment circuit adjustment in pulsed neutron-neutron (PNN) instrument room and failure inspection
Survey and judge.
In order to achieve the above object, the technical solution adopted in the utility model is, a kind of analogue load circuit, including resistance
R1, resistance R1 one end connects earth resistance R2, and the other end is connected to one end of 3kv power modules and electric capacity C1, electric capacity C1
The other end connects earth resistance R3 by electric capacity C2, and neutron excitation waveform prison is provided between the resistance R1 and earth resistance R2
Measuring point TP2, is provided with 3kv high pressure monitoring point TP1 between the resistance R1 and 3kv power modules.
The resistance R1 is 68M Ω, and earth resistance R2 is 68K Ω, and earth resistance R3 is 0.1 Ω, electric capacity C1 and electric capacity C2
It is 330nF, and the pressure at least 2kV of electric capacity C1 and electric capacity C2.
A kind of neutron instrument simulative generator load, including the outer tube of top end opening, are provided with outer tube top end opening
Joint, the analogue load circuit of packoff nipple internal circuit load after being provided with outer tube for simulating PNN generators note silicone oil
Module, analogue load circuit module upper end is fixedly connected with top connection, and lower end is connected with 3kv power modules, the top connection top
End is connected with PNN detection pipe nipples, and top connection offers cable-through hole along its axis direction, and 3KV power modules are electrically connected with three
One end of connecting line, the other end of three connecting lines is connected in each corresponding point of PNN communication pipe nipples, and three connecting lines include
150VDC electric power connection lines, earth lead and trigger command connecting line；
Power supply wiring point is provided with the analogue load circuit module, power supply wiring point is by power line and 3kv power supplys
The High voltage output wiring point connection of module, the TP1 being additionally provided with for monitoring 3kv high pressure in the analogue load circuit module connects
Terminal and the TP2 binding posts for monitoring neutron excitation waveform.
The analogue load circuit module
The outer tube bottom is also equipped with closing the bottom of outer tube inner chamber and blocks up, between outer tube top and top connection and outer
Screw connection structure is provided between cylinder bottom and bottom are stifled.
The union for connecting other pipe nipples is additionally provided with the top connection.
High-voltage switch gear sends trigger pulse order control by PNN communication pipe nipples on the 3kv power modules, beats when working in
During neutron state, trigger pulse interval 75ms.
Realize electrically and mechanically connecting by ten core plugs between the top connection and PNN detection pipe nipples, ten core is inserted
Head adopts totally 10 core plug of the pin of upper hole 5 times 5, plug carrier block to be connected with top connection with six side's screws in four M3mm, for even
Connect PNN detection pipe nipples to switch on power and trigger command, one end that top connection detects pipe nipple connection with PNN also includes what two halves were combined
Union and two seals O-ring, for being mechanically connected and sealing with PNN detection pipe nipples.
The top connection is realized being connected by M36 × 21 pin thread and outer tube.
The aperture of the cable-through hole is 16mm.
Compared with prior art, this utility model at least has the advantages that, sends out from electrical parameter design and neutron
Raw device is identical, and the bench check for whole string instrument provides condition, the frame for movement of neutron instrument simulative generator load, also with
Electronic generator is identical, is easy to connection to install, and traditional neutron generator pipe nipple is received and issued after trigger command, charged particle beam
Bombardment target pole, is 14MeV to stratum emitted energy；And neutron instrument simulative generator load A of the present utility model is carrying out instrument
When device is debugged, neutron instigation command is powered by software on ground and is issued, now, because connection is not actual neutron tube, will not
Work the mischief, after order is performed, whole string instrument current/voltage should meet NEUTRON EMISSION pattern normal current voltage, from communication pipe nipple
Upper end power pack can test out correct communication waveform with oscillograph, and from software on ground window magnetic orientation, temperature, gal can be read
The measured value of agate；Such as there is exception, then can pull down examined according to the pointwise of signal communication flow process in mode of operation under conditions of outer tube
Survey, until pinpoint the problems, this is that the actual neutron generator of connection cannots security implementation, and this utility model is easy to whole string instrument
Connect inspection, improve maintenance efficiency, make the order indoors of whole string instrument send detection and be fully completed.
Description of the drawings
Fig. 1 is analogue load circuit figure；
Fig. 2 is neutron instrument simulative generator support structures schematic diagram；
Fig. 3 is the load of neutron instrument simulative generator and other pipe nipple connection diagrams of PNN.
In accompanying drawing, 1, ten core plugs, 2, top connection, 3, union, 4, connecting line, 5, machinery frame, 6, analogue load circuit,
7th, outer tube, 8,3kv power modules, 9, bottom block up, A, the load of neutron instrument simulative generator, B, PNN detector pipe nipple, C, PNN gal
Agate test nipple joint, D, PNN communication pipe nipple.
Specific embodiment
To make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the accompanying drawings to this utility model
Specific embodiment be described in further detail.
As shown in Fig. 2 neutron instrument simulative generator of the present utility model is loaded includes ten core plugs 1, top connection 2, by
Nonyl 3, connecting line 4, machinery frame 5, analogue load circuit 6, outer tube 7,3kv power modules 8 and bottom stifled 9, by circuit and machinery
The entire combination of structure, allows the load that matching for mechanically and electrically property parameter is directly carried out with PNN detectors, for PNN instrument
Whole string instrument communication and working condition adjustment and fault detect judge in device room, wherein：
Top connection 2 is done with PNN detection pipe nipple B and is electrically and mechanically connected, and its upper end embeds ten core plugs of the pin of hole 5 times 5
1, the carrier block of ten core plug 1 is connected with six side's screws in four M3mm with top connection 2, for PNN detection pipe nipple B switch on power and
Trigger command, upper end also includes the union 3 and two seals O-ring of two halves combination, for being mechanically connected with PNN detection pipe nipple B and
Sealing, centre is 16mm cable-through holes, and there is M36 × 21 pin thread connection outer tube 7 lower end, is also extended with the fixation for arranging two M2 holes
Plate, to connect top connection 2 and analogue load circuit module 6.
Analogue load circuit module 6 is used to simulate the packoff nipple internal circuit load of PNN generators note silicone oil, and it is fixed
On machinery frame 5, the top of machinery frame 5 is stretched out fixed plate and is bolted with the fixed plate in top connection 2, machinery frame
5 ends are threadedly coupled with the top of 3KV power modules 8, as shown in figure 1, analogue load circuit is by resistance capacitance combinational circuit structure
Into including resistance R1, resistance R1 one end connection earth resistance R2, the other end is connected to 3kv power modules and electric capacity C1
One end, the electric capacity C1 other ends connect earth resistance R3 by electric capacity C2, in being provided between the resistance R1 and earth resistance R2
Sub- excitation waveform monitoring point TP2, is provided with 3kv high pressure monitoring point TP1 between the resistance R1 and 3kv power modules, using showing
Ripple device can carry out waveform measurement, can detect signal waveform of the simulative generator in triggering pattern work, and then judge whole string instrument
In the case where operating submode is hit, whether instrument work is normal；As the presently preferred embodiments, resistance R1 be 68M Ω/0.25w, resistance
R2 is 68K Ω/0.24w, and resistance R3 is 330Nf/2kv for 0.1 Ω/10w, electric capacity C1 and electric capacity C2.
3kv power modules are used to provide high direct voltage to analogue load circuit module 6, and its high-voltage switch gear is communicated by PNN
The order of pipe nipple D trigger pulses is controlled, and instrument is worked in when hitting sub- state, trigger pulse interval 75ms.
Outer tube 7 as analogue load circuit module 6 and the protection shell of 3kv power modules 8, its upper end and top connection 2 with
, to be threadedly coupled, bottom stifled 9 is connected with outer tube 7 for threaded connection, lower end and bottom stifled 9, the two ends with the cooperation closing outer tube 7 of top connection 2,
And then protection protection circuit part.
Three connecting lines 4 are respectively 150VDC electric power connection lines, earth lead and trigger command connecting line, and three connecting lines are certainly
Remote short section D rises, and by PNN gamma test nipple joint C and PNN detector pipe nipple B each corresponding point of 3KV power modules 8 are incorporated into
On, trigger command line makes order be transferred in 3kv modules from the spread of the rumours, and 150v power lines make instrument power to 3kv modules.
As described above, the load of neutron instrument simulative generator is capable of achieving whole string instrument in pulsed neutron-neutron (PNN) instrument room
Device circuit adjustment, device includes mechanical part and circuit part, and mechanical part includes outer tube 7 and top connection 2, to bearer circuit
Part simultaneously connects with PNN detectors part, and the mechanical part diameter and jointing are identical with true neutron generator, side
Just it is connected with existing instrument pipe nipple, circuit part includes 3KV modules and analogue load circuit of the present utility model, 3KV modules
3KV voltages are provided to analogue load circuit, analogue load circuit is to remove 3KV power supply moulds according to electrical parameter simulation neutron generator
Load in block external seal section, the section load includes voltage-multiplying circuit and the load of neutron tube circuit two parts, by circuit and machinery knot
The design of structure, allows the load that matching for mechanically and electrically property parameter is directly carried out with PNN detectors, in PNN instruments room
Whole string instrument communication and working condition adjustment and fault detect judge.
When carrying out instrument testing, neutron instigation command is powered by software on ground and is issued, now, because connection is not real
Border neutron tube, does not result in harm, and after order is performed, whole string instrument current/voltage should meet NEUTRON EMISSION pattern normal current electricity
Pressure, correct communication waveform can be tested out from communication pipe nipple upper end power pack with oscillograph, can be read from software on ground window
Magnetic orientation, temperature, the measured value of gamma；Such as there is exception, then outer tube can be pulled down, in mode of operation according to signal communication flow process
Pointwise is detected, until pinpointing the problems.
As shown in figure 3, when whole string instrument communication and working condition adjustment and fault detect judge in PNN instruments room, by
Sub- instrument simulative generator load A press Fig. 2 connection diagrams successively with its PNN detector pipe nipple B, PNN gamma test nipple joint C,
PNN communication pipe nipple D connections, joint style is union connection；
Wherein, communicate pipe nipple D to communicate with ground instrument, take orders and transmitting order to lower levels, control all the sensors and neutron
Generator；And receive the data of different sensors, they are sent to into ground with digital form；Realize the signal of temperature, box cupling
Collection；
PNN gamma test nipple joints C is used to be acquired process to stratum gamma-ray signal, for curve school depth；
The function of PNN detector pipe nipple B：The neutron of two-way He3 thermal-neutron detectors detection neutron generator transmitting.
Neutron instrument simulative generator load A simulation neutron generator pipe nipples, traditional neutron generator pipe nipple is received
After issuing trigger command, charged particle beam bombardment target pole, is 14MeV to stratum emitted energy；And Neutron of the present utility model
Device simulative generator loads A when instrument testing is carried out, and is powered by software on ground and issued neutron instigation command, now, because
Connection is not actual neutron tube, does not result in harm, and after order is performed, whole string instrument current/voltage should meet NEUTRON EMISSION mould
Formula normal current voltage, correct communication waveform can be tested out from communication pipe nipple upper end power pack with oscillograph, thin-skinned from ground
Part window can read the measured value of magnetic orientation, temperature, gamma；Such as there is exception, then can pull down under conditions of outer tube in work
Pattern is detected according to the pointwise of signal communication flow process, until pinpointing the problems, this is that the actual neutron generator of connection is cannoted safely in fact
Apply.
Claims (10)
1. a kind of analogue load circuit, it is characterised in that including resistance R1, resistance R1 one end connection earth resistance R2, the other end
One end of 3kV power modules and electric capacity C1 is connected to, the electric capacity C1 other ends connect earth resistance R3 by electric capacity C2, described
Neutron excitation waveform monitoring point TP2 is provided between resistance R1 and earth resistance R2, between the resistance R1 and 3kV power modules
It is provided with 3kV high pressure monitoring point TP1.
2. a kind of analogue load circuit according to claim 1, it is characterised in that the resistance R1 is 68M Ω, ground connection electricity
Resistance R2 is 68k Ω, and earth resistance R3 is 330nF for 0.1 Ω, electric capacity C1 and electric capacity C2, and electric capacity C1 is resistance to electric capacity C2 is depressed into
It is less 2kV.
3. a kind of neutron instrument simulative generator load, it is characterised in that including the outer tube (7) of top end opening, outer tube (7) top
Packoff nipple inside electricity after being provided with for simulating PNN generators note silicone oil is installed in top connection (2), outer tube (7) at opening
The analogue load circuit module (6) of road load, analogue load circuit module (6) upper end is fixedly connected with top connection (2), lower end and
3kV power modules (8) connect, and top connection (2) top is connected with PNN detections pipe nipple (B), and top connection (2) is along its axis side
To offering cable-through hole, 3kV power modules (8) are electrically connected with one end of three connecting lines (4), three connecting lines (4) it is another
One end is connected in PNN communication pipe nipple (D) each corresponding point, three connecting lines (4) including 150VDC electric power connection lines, earth lead and
Trigger command connecting line；
Power supply wiring point is provided with the analogue load circuit module (6), power supply wiring point is by power line and 3kV power supply moulds
The High voltage output wiring point connection of block (8), is additionally provided with for monitoring 3kV high pressure on the analogue load circuit module (6)
TP1 binding posts and the TP2 binding posts for monitoring neutron excitation waveform.
4. a kind of neutron instrument simulative generator load according to claim 3, it is characterised in that the fictitious load electricity
Road module (6).
5. a kind of neutron instrument simulative generator load according to claim 3, it is characterised in that outer tube (7) bottom
The bottom that end is also equipped with closing outer tube (7) inner chamber is stifled (9), between outer tube (7) top and top connection (2) and outer tube (7)
Screw connection structure is provided between bottom and bottom stifled (9).
6. a kind of neutron instrument simulative generator load according to claim 3, it is characterised in that the top connection (2)
On be additionally provided with union (3) for connecting other pipe nipples.
7. a kind of neutron instrument simulative generator load according to claim 3, it is characterised in that the 3kV power supplys mould
High-voltage switch gear communicates pipe nipple (D) and sends trigger pulse order control by PNN on block (8), when work in hit sub- state when, triggering
Pulse spacing 75ms.
8. a kind of neutron instrument simulative generator load according to claim 3, it is characterised in that the top connection (2)
Electrically and mechanically it is connected by ten core plugs (1) realization between PNN detections pipe nipple (B), ten core plug (1) is using upper hole
5 times pins 5 totally 10 core plug, plug carrier block is connected with top connection (2) with six side's screws in four M3mm, is visited for connecting PNN
Survey pipe nipple to switch on power and trigger command, one end that top connection (2) detects pipe nipple (B) connection with PNN also includes what two halves were combined
Union and two seals O-ring, for being mechanically connected with PNN detections pipe nipple (B) and sealing.
9. a kind of neutron instrument simulative generator load according to claim 3, it is characterised in that the top connection (2)
Realize being connected by M36 × 21 pin thread and outer tube (7).
10. a kind of neutron instrument simulative generator load according to claim 3, it is characterised in that the cable-through hole
Aperture is 16mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621190873.4U CN206114724U (en) | 2016-10-28 | 2016-10-28 | Simulation load circuit and because neutron instrument simulative generator load of this circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621190873.4U CN206114724U (en) | 2016-10-28 | 2016-10-28 | Simulation load circuit and because neutron instrument simulative generator load of this circuit |
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| Publication Number | Publication Date |
|---|---|
| CN206114724U true CN206114724U (en) | 2017-04-19 |
Family
ID=58525667
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621190873.4U Expired - Fee Related CN206114724U (en) | 2016-10-28 | 2016-10-28 | Simulation load circuit and because neutron instrument simulative generator load of this circuit |
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|---|---|
| CN (1) | CN206114724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751893A (en) * | 2020-05-26 | 2020-10-09 | 中国石油天然气集团有限公司 | Neutron generator nipple simulation device |
-
2016
- 2016-10-28 CN CN201621190873.4U patent/CN206114724U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111751893A (en) * | 2020-05-26 | 2020-10-09 | 中国石油天然气集团有限公司 | Neutron generator nipple simulation device |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20191028 |
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| CF01 | Termination of patent right due to non-payment of annual fee |