CN211122701U - Logging device - Google Patents
Logging device Download PDFInfo
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- CN211122701U CN211122701U CN201921932254.1U CN201921932254U CN211122701U CN 211122701 U CN211122701 U CN 211122701U CN 201921932254 U CN201921932254 U CN 201921932254U CN 211122701 U CN211122701 U CN 211122701U
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- Prior art keywords
- gas
- sample
- humidity
- sample storage
- control valve
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Links
- 238000005070 sampling Methods 0.000 claims abstract description 50
- 239000011435 rock Substances 0.000 claims abstract description 41
- 238000001514 detection method Methods 0.000 claims abstract description 29
- 239000000203 mixture Substances 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000004587 chromatography analysis Methods 0.000 claims abstract description 7
- 239000004576 sand Substances 0.000 claims description 29
- 238000006297 dehydration reaction Methods 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 12
- 230000018044 dehydration Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 138
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 27
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 13
- 238000012544 monitoring process Methods 0.000 description 8
- 238000005553 drilling Methods 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- 239000004215 Carbon black (E152) Substances 0.000 description 4
- 229930195733 hydrocarbon Natural products 0.000 description 4
- 150000002430 hydrocarbons Chemical class 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008398 formation water Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a logging device, include: the sample storage boxes are internally provided with a sample storage box, the sample storage box is internally provided with a purifying liquid for separating rock debris and a gas mixture to obtain a purified gas sample, and the sample storage box is provided with a chromatographic sampling interface; and the chromatograph is used for performing chromatographic analysis on the purified gas sample and is connected with the chromatographic sampling interface. Through the setting of sample storage box, chromatograph, realized from the separation of gaseous to the systematization equipment that detects, for oil gas detection brings the facility, simultaneously, adopt the gas appearance to carry out follow-up detection, can improve the sensitivity of gas detection, detect earlier and more sensitive to gas anomaly.
Description
Technical Field
The utility model relates to a logging technical field, in particular to logging device.
Background
The nitrogen drilling and logging technology refers to a logging technology using nitrogen as a drilling medium. Logging can guide the drilling process or serve as an analysis basis for the content of bottom layer oil and gas, and the like. In the logging process, the collection of rock debris and gas is required. However, because no gas collecting device of the system exists at present, great difficulty is brought to gas monitoring,
therefore, how to monitor the gas more conveniently is a technical problem that needs to be solved by those skilled in the art at present.
SUMMERY OF THE UTILITY MODEL
In view of this, the present invention provides a logging device, which can monitor gas more conveniently.
In order to achieve the above object, the utility model provides a following technical scheme:
a logging apparatus, comprising:
the system comprises a plurality of storage boxes, a sample collecting box and a gas purifying box, wherein the storage boxes comprise sample storage boxes, the sample storage boxes store purifying liquid used for separating rock debris and gas mixture to obtain a purified gas sample, and the sample storage boxes are provided with chromatographic sampling interfaces;
and the chromatograph is used for carrying out chromatographic analysis on the purified gas sample and is connected with the chromatographic sampling interface.
Preferably, the storage box still includes humidity gas sample storage box, the humidity of humidity gas sample storage box detects the interface connection and is used for detecting the humidity sensor of the humidity of detritus and gas mixture.
Preferably, be equipped with gas sampling interface on the humidity gas appearance storage box, the exit end of gas sampling interface is equipped with and is used for detecting the gaseous detection subassembly of the gas appearance that gas sampling interface flows.
Preferably, the outlet end of the gas sampling interface is connected with a dehydration drying component for drying the gas sample flowing out through the gas sampling interface, the outlet end of the dehydration drying component is connected with a gas collection tank, and the gas detection component is arranged in the gas collection tank.
Preferably, a dust removal device is arranged in the humidity gas sample storage box, so that the humidity sensor detects the rock debris and the gas mixture after dust removal.
Preferably, the chromatographic sampling interface, the gas sampling interface, a first vent on the sample storage tank for regulating the pressure in the sample storage tank, a first sample inlet on the sample storage tank, and a second sample inlet on the humidity gas sample storage tank are respectively connected with corresponding conduits in a sealing manner through sealing gaskets; the humidity sensor is connected to the humidity detection interface in a sealing mode.
Preferably, each storage box is arranged in the cabinet body, a control valve is arranged on the cabinet body, an inlet end of the control valve is connected with a sample pipeline for receiving rock debris and a gas mixture in the sand discharge pipeline, and an outlet end of the control valve is connected with the corresponding storage box through a conduit.
Preferably, the storage tank further comprises a rock sand sampling tank for sampling rock debris.
Preferably, the control valve comprises a first control valve and a second control valve; the sample line includes a first sample line connected to an inlet port of the first control valve and a second sample line connected to an inlet port of the second control valve; the exit end of first control valve is through pipe connection rock sand sample case, the exit end of second control valve includes main export and partial pressure mouth, main export is through pipe connection humidity gas appearance storage box, the partial pressure mouth is through pipe connection the sample storage box.
Preferably, the cabinet body is provided with wire outlet holes for each transmission line in the cabinet body to extend out of the cabinet body in a penetrating manner.
The utility model provides a logging device, include: the sample storage boxes are internally provided with a sample storage box, the sample storage box is internally provided with a purifying liquid for separating rock debris and a gas mixture to obtain a purified gas sample, and the sample storage box is provided with a chromatographic sampling interface; and the chromatograph is used for performing chromatographic analysis on the purified gas sample and is connected with the chromatographic sampling interface.
And discharging the rock debris and the gas mixture in the sand discharge pipeline into a purifying liquid in the sample storage box, and separating the rock debris and the rock debris in the gas mixture and the gas which does not need to be detected from the purified gas sample in the purifying liquid, wherein the purifying liquid is selected according to the required purified gas sample, such as saline solution, rock debris and non-detection gas which are remained in the purifying liquid. The purified gas sample flows out of the purified liquid and is subjected to chromatographic analysis by a chromatograph.
In this embodiment, through the setting of sample storage box, chromatograph, realized from the separation of gas to the systematization equipment that detects, for oil gas detection brings the facility, simultaneously, adopt the gas appearance after the purifying liquid purifies to carry out follow-up detection, can hydrocarbon content in the more accurate analysis sand sample, can improve the sensitivity of gas detection, detect earlier and more sensitive to gas anomaly.
In a preferred embodiment, the storage box further comprises a humidity gas sample storage box, and a humidity detection interface of the humidity gas sample storage box is connected with a humidity sensor for detecting the humidity of the rock debris and the gas mixture. By integrating the rock debris and gas mixture humidity detection sensor, the safety of gas drilling is guaranteed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is an external view of a logging device provided by the present invention;
fig. 2 is a first vector diagram of the logging apparatus provided by the present invention when the cabinet door is opened;
fig. 3 is a second directional structure diagram of the logging apparatus provided by the present invention when the cabinet door is opened;
fig. 4 is the internal structure diagram of the logging device provided by the utility model when the cabinet door is opened.
Reference numerals:
1-door lock, 2-sample sampling interface, 3-hoisting ring, 4-second control valve, 5-sand sample inlet, 6-second vent, 7-rock sand sampling box, 8-first sample inlet, 9-chromatographic sampling interface, 10-sample storage box, 11-first vent, 12-humidity gas sample storage box, 13-gas sampling interface, 14-humidity sensor, 15-second sample inlet, 16-silica gel cylinder, 17-dehydration bottle, 18-gas monitoring sensor, 19-cabinet body, 20-outlet, 21-first control valve and 22-gas collection tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The core of the utility model is to provide a logging device can monitor gas more conveniently.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The utility model provides a gas bores a logging detritus and a gas acquisition device's a specific embodiment, please refer to fig. 1 to 4, include: chromatograph and a plurality of storage boxes.
The storage box comprises a sample storage box 10, wherein the sample storage box 10 stores a purifying liquid for separating rock debris and a gas mixture to obtain a purified gas sample, and the sample storage box 10 is provided with a chromatographic sampling interface 9.
The chromatograph is used for carrying out chromatographic analysis on the purified gas sample and is connected with the chromatographic sampling interface 9. The chromatograph is typically located in a logging tool room. The purified gas sample specifically includes various gases such as hydrocarbon gas.
In addition, in the present embodiment, nitrogen is taken as an example of the drilling medium, and in other embodiments, the gas may be natural gas or other gases.
The debris and gas mixture in the sand discharge line are discharged into the purified liquid in the sample storage box 10, and the debris in the gas mixture and the gas which is not required to be detected are separated from the purified gas sample in the purified liquid, wherein the purified liquid is selected according to the required purified gas sample, such as saline solution, the debris and non-detection gas are remained in the purified liquid. The purified gas sample flows out of the purified liquid and is subjected to chromatographic analysis by a chromatograph.
In this embodiment, through the setting of sample storage box 10, chromatograph, realized from the separation of gaseous to the systematization equipment that detects, for oil gas detection brings the facility, simultaneously, adopt the gas appearance after the purifying liquid purifies to carry out follow-up detection, can hydrocarbon content in the more accurate analysis sand sample, can improve the sensitivity of gas detection, detect earlier and more sensitive to gas anomaly.
Further, the storage box still includes humidity gas appearance storage box 12, and the humidity that humidity gas appearance storage box 12 detected the interface connection and is used for detecting the humidity sensor 14 of detritus and gas mixture.
In the prior art, the humidity of the rock debris and the gas mixture discharged by the sand discharge pipeline is not detected, and actually, the detection of the gas humidity of the rock debris relates to the early discovery of formation water, and the formation water discharge factor cannot be ignored for the smooth operation of the nitrogen drilling project. In this embodiment, through setting up humidity gas appearance storage box 12 and humidity transducer 14, can real-time detection detritus and gas mixture's humidity, be favorable to in time discovering nitrogen gas drilling stratum humidity anomaly, reduced the risk of engineering construction.
Further, a gas sampling interface 13 is arranged on the humidity gas sample storage box 12, and a gas detection group is arranged at the outlet end of the gas sampling interface 13The piece, gas detection subassembly are used for detecting the gas appearance that gas sampling interface 13 flowed out, specifically can detect gas composition, content isoparametric to make this logging device can provide gaseous detection function. More specifically, the gas detection assembly may monitor at least a portion of the gas in the gas sample as desired, and specifically, the gas detection assembly includes a gas monitoring sensor 18, e.g., H2An S gas monitoring sensor and a CO2 gas monitoring sensor, and other types of gas monitoring sensors can be expanded according to requirements.
Further, the outlet end of the gas sampling interface 13 is connected with a dehydration drying component for drying and purifying the purified gas sample, the outlet end of the dehydration drying component is connected with a gas collection tank 22, and the gas detection component is arranged in the gas collection tank 22. Through dehydration and drying treatment, the water contained in the purified gas sample is reduced or removed, and the accuracy of the measurement result is improved.
Specifically, as shown in fig. 4, the dehydration drying assembly includes a dehydration bottle 17 connected to the outlet end of the gas sampling port 13 and a silicone cylinder 16 connected to the outlet end of the dehydration bottle 17. The outlet end of the silica gel cylinder 16 is connected with the gas collecting tanks 22, and the gas collecting tanks 22 are connected in series.
Further, a dust removing device is arranged in the humidity gas sample storage box 12, so that the humidity sensor 14 detects the rock debris and the gas mixture after dust removal. After dust is removed by the dust removing device, humidity detection is carried out by the humidity sensor 14, so that the humidity sensor 14 is prevented from being influenced by dust covering the humidity sensor 14.
Further, the sample holding tank 10 is provided with a first vent 11 for regulating the pressure therein to maintain the pressure in the sample holding tank 10 at a desired pressure.
Further, the chromatographic sampling interface 9, the gas sampling interface 13, the first vent 11, the first sample inlet 8 on the sample storage tank 10, and the second sample inlet 15 on the humidity gas sample storage tank 12 are respectively connected with corresponding conduits through gaskets in a sealing manner, the conduits are used for transmitting gas or mixture of the corresponding storage tanks, and the humidity sensor 14 is connected to the humidity detection interface in a sealing manner, so as to avoid gas leakage of the humidity gas sample storage tank 12 and the sample storage tank 10.
Further, referring to fig. 2 to 4, each storage tank is disposed in the tank body 19, the tank body 19 is provided with a control valve, an inlet end of the control valve is connected to a sample pipeline for receiving a mixture of rock debris and gas in the sand discharge pipeline, and an outlet end of the control valve is connected to the corresponding storage tank through a conduit.
Through the setting of cabinet body 19, each storage box all can be along with cabinet body 19 unified removal, and cabinet body 19 can play the effect of protection storage box. Meanwhile, the rock debris and the gas mixture in the sand discharge pipeline are conveyed to the storage box through the sample pipeline, so that the rock debris and the gas collection position can be separated from the nitrogen drill high-pressure sand discharge pipeline by a certain distance, the operation is not required to be performed close to the high-pressure sand discharge pipeline, and the safety of collection workers is guaranteed.
Wherein, preferably, cabinet 19 may include a cabinet door for facilitating the installation of the internal components of cabinet 19, and door lock 1 may be disposed on the cabinet door. In addition, the cabinet body 19 may be provided with a hoisting ring 3 for facilitating the installation of the cabinet body 19.
Wherein, preferably, the dehydration drying component and the gas collecting tank 22 are all uniformly arranged in the cabinet body 19.
Wherein, preferably, the storage box still includes rock debris sample case 7 that is used for carrying on the rock debris sample, in addition, can set up second drain 6 on the rock debris sample case 7 to be used for adjusting 7 incasement pressures of rock debris sample case.
Wherein, preferably, referring to fig. 1, 3 and 4, the control valve includes a first control valve 21 and a second control valve 4 to control the opening and closing of the corresponding sample line outlet. The sample lines include a first sample line connected to an inlet port of the first control valve 21 and a second sample line connected to an inlet port of the second control valve 4. The outlet end of the first control valve 21 is connected with the rock sand sampling box 7 through a conduit, the outlet end of the second control valve 4 comprises a main outlet and a partial pressure port, the main outlet is connected with the humidity gas sample storage box 12 through a conduit, and the partial pressure port is connected with the sample storage box 10 through a conduit.
Referring to fig. 4, the outlet end of the first control valve 21 is connected to the sand inlet 5 of the rock sand sampling tank 7 through a conduit in the cabinet 19. The partial pressure mouth is located the cabinet body 19 outside, and the partial pressure mouth links to each other with sample sampling interface 2 that runs through the cabinet body 19 through the outer pipe of cabinet body 19, and the exit end of sample sampling interface 2 passes through the sample entry of the interior pipe connection sample storage box 10 of cabinet body 19. The main outlet is located in cabinet 19 and is connected to the sample inlet of the humid gas sample storage tank 12 via a conduit in cabinet 19.
Adopt two pipelines respectively for rock sand sample case 7, the humidity gas sample storage box 12 of collection, sample storage box 10 conveying detritus and gas mixture, efficiency is higher.
Furthermore, the cabinet body 19 is provided with an outlet hole 20 for each transmission line in the cabinet body 19 to extend out of the cabinet body 19, so that each transmission line extends out of the cabinet body 19 through the uniform outlet hole 20.
Specifically, a vent on the storage box is connected with an air pipeline, and the air pipeline is communicated to the outside of the cabinet through an outlet hole 20; the gas outlet pipeline of the gas monitoring sensor 18 is communicated with the outside of the cabinet through the wire outlet hole 20; the signal cable of the sensor is connected to the logging instrument room signal acquisition machine through the wire outlet hole 20.
The working process of the acquisition device provided by the embodiment is as follows:
from the nitrogen drill sand discharge line, a first sample line and a second sample line are led, the first sample line being connected to the first control valve 21, and the second sample line being connected to the second control valve 4.
The sand sample enters the rock sand sampling box 7 through the first sample pipeline and the first control valve 21, rock debris with determined well depth can be collected according to sampling time, and the pressure in the rock sand sampling box 7 can be adjusted by utilizing the second vent 6 on the rock sand sampling box 7.
After the sand sample enters the sample storage tank 10 through the second sample pipeline and the second control valve 4, rock debris and gas in the sand sample are separated through the purified liquid in the sample storage tank 10. The gas sample enters the chromatograph through a gas pipeline at the chromatographic sampling interface 9 to analyze the hydrocarbon content. The pressure in the sample storage tank 10 can be regulated by means of a first vent 11 in the sample storage tank 10.
After the sand sample enters the humidity gas sample storage box 12 through a second sample pipeline, a dust removal device removes dust in the humidity gas sample storage box 12, a gas humidity sensor 14 detects humidity change in separated gas, and a humidity signal is transmitted to a logging instrument room signal acquisition machine through a signal line; meanwhile, a gas sample flows into the dewatering bottle 17 from the gas sampling interface 13 to be dewatered, then is dried by the silica gel cylinder 16 and enters the gas collecting tank 22, the gas monitoring sensor 18 in the gas collecting tank 22 analyzes the gas, and gas analysis data are transmitted to the logging instrument room signal acquisition machine through a signal line.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is right above that the utility model provides a logging device has carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A logging device, comprising:
the sample storage tanks (10) are used for storing a purifying liquid for separating rock debris and a gas mixture to obtain a purified gas sample, and chromatographic sampling interfaces (9) are arranged on the sample storage tanks (10);
and the chromatograph is used for carrying out chromatographic analysis on the purified gas sample and is connected with the chromatographic sampling interface (9).
2. A logging device as claimed in claim 1, wherein said storage tank further comprises a humidity gas sample storage tank (12), and a humidity sensor (14) for detecting the humidity of the rock debris and gas mixture is connected to a humidity detection interface of said humidity gas sample storage tank (12).
3. A logging device as claimed in claim 2, wherein said humidity gas sample storage tank (12) is provided with a gas sampling port (13), and an outlet end of said gas sampling port (13) is provided with a gas detection assembly for detecting a gas sample flowing out from said gas sampling port (13).
4. A logging device as claimed in claim 3, wherein the outlet end of the gas sampling port (13) is connected with a dehydration drying component for drying the gas sample flowing out through the gas sampling port (13), the outlet end of the dehydration drying component is connected with a gas collection tank (22), and the gas detection component is arranged in the gas collection tank (22).
5. A logging device as claimed in claim 3, wherein a dust removing device is arranged in said moisture gas sample storage tank (12) so that said moisture sensor (14) detects the dust and gas mixture after dust removal.
6. A logging device as claimed in claim 3, wherein said chromatographic sampling port (9), said gas sampling port (13), said first vent (11) of said sample storage tank (10) for regulating the pressure therein, said first sample inlet (8) of said sample storage tank (10), and said second sample inlet (15) of said moisture gas sample storage tank (12) are respectively connected with the corresponding conduits by sealing gaskets; the humidity sensor (14) is connected to the humidity detection interface in a sealing mode.
7. A logging device as claimed in any one of claims 2 to 6, wherein each storage tank is arranged in a tank body (19), a control valve is arranged on the tank body (19), an inlet end of the control valve is connected with a sample line for receiving a rock debris and gas mixture in a sand discharge line, and an outlet end of the control valve is connected with the corresponding storage tank through a conduit.
8. A logging device as claimed in claim 7, wherein said storage box further comprises a rock sand sampling box (7) for sampling rock debris.
9. A logging device as claimed in claim 8, wherein said control valves comprise a first control valve (21) and a second control valve (4); the sample line comprises a first sample line connected to the inlet end of the first control valve (21) and a second sample line connected to the inlet end of the second control valve (4); the exit end of first control valve (21) is through pipe connection rock sand sampling case (7), the exit end of second control valve (4) includes main export and partial pressure mouth, main export is through pipe connection humidity gas sample storage box (12), the partial pressure mouth is through pipe connection sample storage box (10).
10. A logging device as claimed in claim 7, wherein said cabinet (19) is provided with an outlet hole (20) for each transmission line in said cabinet (19) to extend out of said cabinet (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921932254.1U CN211122701U (en) | 2019-11-08 | 2019-11-08 | Logging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921932254.1U CN211122701U (en) | 2019-11-08 | 2019-11-08 | Logging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211122701U true CN211122701U (en) | 2020-07-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921932254.1U Expired - Fee Related CN211122701U (en) | 2019-11-08 | 2019-11-08 | Logging device |
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| Country | Link |
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| CN (1) | CN211122701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702818A (en) * | 2019-11-08 | 2020-01-17 | 中国石油大学(北京) | Logging device |
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2019
- 2019-11-08 CN CN201921932254.1U patent/CN211122701U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702818A (en) * | 2019-11-08 | 2020-01-17 | 中国石油大学(北京) | Logging device |
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Granted publication date: 20200728 |