CN113866843B - Geophysical logging electrical method experimental simulation well apparent resistivity measuring device - Google Patents
Geophysical logging electrical method experimental simulation well apparent resistivity measuring device Download PDFInfo
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- CN113866843B CN113866843B CN202111148134.4A CN202111148134A CN113866843B CN 113866843 B CN113866843 B CN 113866843B CN 202111148134 A CN202111148134 A CN 202111148134A CN 113866843 B CN113866843 B CN 113866843B
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- 238000004088 simulation Methods 0.000 title claims abstract description 19
- 238000010291 electrical method Methods 0.000 title description 2
- 239000002689 soil Substances 0.000 claims abstract description 45
- 230000006835 compression Effects 0.000 claims abstract description 13
- 238000007906 compression Methods 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 238000007789 sealing Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 claims description 21
- 238000007599 discharging Methods 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 9
- 239000011810 insulating material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 9
- 238000002474 experimental method Methods 0.000 description 17
- 238000003825 pressing Methods 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V13/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices covered by groups G01V1/00 – G01V11/00
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/30—Assessment of water resources
Abstract
The invention discloses a geophysical logging electrical experimental simulation well apparent resistivity measuring device, which comprises: the frame body is used for installing the measuring device main body; the pipeline assembly is fixedly connected with the frame body and comprises an outer pipe, an inner pipe and a connecting rod, wherein the inner pipe is fixedly connected inside the outer pipe through the connecting rod at two sides; an energizing assembly mounted on the outer tube; the energizing column is arranged inside the inner tube; the pressure adjusting assembly is fixedly arranged on the top wall of the frame body and comprises a controller, a hydraulic telescopic rod and a compression ring, wherein the controller is fixedly arranged on the top wall of the frame body, and a plurality of hydraulic telescopic rods are fixedly and annularly fixedly arranged at the bottom of the controller. The invention can regulate the soil layer pressure so as to simulate more experimental conditions, thereby facilitating the logging measurement of the apparent resistivity method in a laboratory and improving the experimental accuracy.
Description
Technical Field
The invention relates to the technical field of oil and gas field exploration, in particular to a geophysical well logging electrical experimental simulation well apparent resistivity measuring device.
Background
Geophysical well logging, abbreviated as logging, is a method of using instruments for measuring physical properties such as electricity, sound, heat, radioactivity, etc., in boreholes to distinguish between subsurface rock and fluid properties, and is an important means of exploration and development of oil and gas fields. Resistivity logging is commonly known as apparent resistivity logging, and is often referred to in the past. As the types of electrode systems for resistivity logging are increasing, resistivity logging using a common electrode system is specifically referred to as apparent resistivity logging.
In order to detect errors in the use process of the apparent resistivity method well logging, practical teaching of the laboratory internal apparent resistivity method well logging is facilitated, and a measuring device for the apparent resistivity method well logging is often used, but because the stratum densities of the oil and gas fields are different, the existing measuring device cannot simulate stratum with different densities when in use, and therefore certain errors exist in the experimental process.
Disclosure of Invention
The invention aims to solve the defects in the prior art that the existing measuring device cannot simulate stratum with different densities when in use due to different stratum densities of oil and gas fields, so that certain errors exist in the experimental process, and provides a geophysical logging electrical experimental simulation well apparent resistivity measuring device.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a geophysical logging electrical experimental simulated well apparent resistivity measurement device, comprising:
the frame body is used for installing the measuring device main body;
the pipeline assembly is fixedly connected with the frame body and comprises an outer pipe, an inner pipe and a connecting rod, wherein the inner pipe is fixedly connected inside the outer pipe through the connecting rod at two sides, and the inner pipe is divided into an external stratum simulation area and an internal power generation area;
the energizing assembly is arranged on the outer tube and is used for guiding current into the inner tube through the connecting rod;
the energizing column is arranged inside the inner tube and used for collecting the current led into the inner tube and carrying out data processing;
the pressure adjusting assembly is fixedly arranged on the top wall of the frame body and used for changing the soil layer pressure of a stratum simulation area, the pressure adjusting assembly comprises a controller, a hydraulic telescopic rod and a compression ring, the controller is fixedly arranged on the top wall of the frame body, the hydraulic telescopic rods are fixedly and annularly arranged at the bottom of the controller, the compression ring is fixedly connected to the movable ends of the hydraulic telescopic rods, and the compression ring is arranged between the outer pipe and the inner pipe in a sealing sliding mode.
Preferably, the frame body comprises a top plate, a partition plate and support columns, the four support columns are fixedly connected to four corners of the top plate and the partition plate, an opening is formed in the bottom of the partition plate, and the bottom of the outer tube is fixedly connected with the opening side.
Preferably, the top of the outer tube is in a bucket shape, and a sealing assembly is arranged below the pressure adjusting assembly and used for sealing the upper opening of the outer tube.
Preferably, the seal assembly comprises a mounting column, a slip ring and a seal cover, wherein the mounting column is fixedly connected with the bottom center of the controller, the slip ring is slidably sleeved on the mounting column, the seal cover is fixedly connected to the outer side of the slip ring and is in an inverted circular truncated cone shape and is tightly contacted with the upper opening of the outer tube, a plurality of through openings are formed in the seal cover, and the movable end of the hydraulic telescopic rod penetrates through the through openings.
Preferably, the outer tube is made of insulating materials, the connecting rod and the inner tube are made of conductive metal, and the connecting rod is fixedly arranged on the side wall of the bottom end of the inner tube.
Preferably, the soil discharging assembly comprises a bottom plate, an air cylinder and a mounting plate, four corners of the mounting plate are fixedly connected with connecting rods extending downwards, the air cylinder is fixedly arranged at the center of the mounting plate, the moving end is vertically upwards, and the bottom plate is fixedly connected with the moving end of the air cylinder.
Preferably, the bottom plate is a conical circular plate, the top end seals the bottom of the inner tube, and the outer side seals the bottom of the outer tube.
Preferably, the mounting plate is provided with a plurality of soil outlets in a clamping manner, the soil outlets are annularly arranged around the cylinder, and the soil outlets are positioned on the outer ring of the bottom plate in a vertical projection manner.
Preferably, the pressing ring is separated from the outer tube when moving to the topmost end, and the distance is 20cm-30cm.
Compared with the prior art, the invention has the beneficial effects that:
1. when experiments are needed, a proper amount of earth materials are added between the outer tube and the inner tube according to stratum states needing to be simulated, current is discharged through the electrifying component, current enters the inner tube through the connecting rod, current distribution is detected through the electrifying column in the inner tube and the electrifying component outside, because power supply current is distributed in space and is only influenced by surrounding medium resistivity distribution, large-layer sections or stratum comparison of section can be conducted, in order to increase experimental data, the hydraulic telescopic rod is controlled by the controller to stretch and retract, the earth layers are extruded by the compression ring, so that densities of different strata are simulated, further experimental data are collected, finally, after the experiments are finished, earth is discharged through the earth discharging component, the earth layer pressure can be adjusted, further experimental conditions are simulated, the well logging measurement by a visual resistivity method is facilitated in a laboratory, and the experimental accuracy is improved;
2. the top opening of the outer tube is sealed through the sealing assembly in the experiment, and the outer tube cannot completely simulate a stratum, so that the current is led into the air from the upper side in the experiment, the outer tube is made of insulating materials, the connecting rod and the inner tube are required to be conductive, and meanwhile, the outer tube is required to be insulated to cause deviation to the experiment in order to avoid the loss of the current, so that the accuracy of the experiment is improved;
3. when the experiment is finished, in order to conveniently discharge the soil material inside the outer tube, the bottom plate is moved through the air cylinder, the bottom opening of the outer tube is leaked, and meanwhile, the pressing ring is matched, so that the soil material inside the outer tube is extruded, the soil material is discharged, the soil material is conveniently transferred, meanwhile, the soil material adhered to the outer tube and the inner tube is cleaned through the pressing ring, and the cleaning and reuse of the measuring device are facilitated.
Drawings
FIG. 1 is a schematic diagram of the frontal structure of a device for measuring apparent resistivity of an experimental simulated well of geophysical well logging in accordance with the present invention;
FIG. 2 is a schematic diagram of a device for measuring apparent resistivity of an experimental simulated well of geophysical well logging in a top view;
FIG. 3 is a top view of a tubing assembly of an experimental simulated well apparent resistivity measurement apparatus for geophysical well logging according to the present invention;
FIG. 4 is a bottom view of a soil discharge assembly of a simulated well apparent resistivity measuring device for geophysical well logging electrical experiments according to the present invention;
FIG. 5 is a schematic diagram of a pressure regulating assembly of a simulated well apparent resistivity measuring device for geophysical well logging experiments according to the present invention.
In the figure: 1 frame body, 11 roof, 12 baffles, 13 support columns, 2 pipeline components, 21 outer tubes, 22 inner tubes, 23 connecting rods, 3 power-on components, 4 power-on columns, 5 pressure adjusting components, 51 controllers, 52 hydraulic telescopic rods, 53 compression rings, 6 soil discharging components, 61 bottom plates, 62 cylinders, 63 mounting plates, 7 sealing components, 71 mounting columns, 72 slip rings, 73 sealing covers and 8 soil outlets.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
Referring to fig. 1-5, a geophysical logging electrical experimental simulated well apparent resistivity measurement apparatus, comprising:
the device comprises a frame body 1, wherein the frame body 1 is used for installing a measuring device main body;
the pipeline assembly 2, the outer tube 21 is fixedly connected with the frame body 1, the pipeline assembly 2 comprises the outer tube 21, the inner tube 22 and a connecting rod 23, the inner tube 22 is fixedly connected inside the outer tube 21 through the connecting rod 23 at two sides, and the inner tube 21 is divided into an external stratum simulation area and an internal power generation area;
an energizing unit 3, the energizing unit 3 being mounted on the outer tube 21, and introducing electric current into the inner tube 22 through the connecting rod 23;
the energizing column 4 is arranged inside the inner tube 22 and is used for collecting the current led into the inner tube 22 and carrying out data processing;
the pressure adjusting assembly 5 is fixedly arranged on the top wall of the frame body 1 and used for changing the soil layer pressure of a stratum simulation area, the pressure adjusting assembly 5 comprises a controller 51, hydraulic telescopic rods 52 and a compression ring 53, the controller 51 is fixedly arranged on the top wall of the frame body 1, a plurality of hydraulic telescopic rods 52 are fixedly and annularly arranged at the bottom of the controller 51, the compression ring 53 is fixedly connected to the movable ends of the hydraulic telescopic rods 52, and the pressure adjusting assembly 5 is arranged between the outer pipe 21 and the inner pipe 22 in a sealing sliding manner;
the soil discharging assembly 6 is arranged at the bottom of the pipeline assembly 2 and used for discharging soil materials in the soil layer simulation area.
According to the invention, when experiments are required, a proper amount of soil is added between the outer tube 21 and the inner tube 22 according to stratum states required to be simulated, current is discharged through the electrifying component 3, current enters the inner tube 22 through the connecting rod 23, current distribution is detected through the electrifying column 4 inside the inner tube 22 and the electrifying component 3 outside the inner tube, because power supply current is distributed in space and is only influenced by surrounding medium resistivity distribution, large intervals or stratum contrast of section can be performed, in order to increase experimental data, the controller 51 controls the hydraulic telescopic rod 52 to stretch and contract, the soil layer is extruded by the pressure ring 53, so that densities of different strata are simulated, more experimental data are collected, and finally, after the experiments are finished, soil layer pressure is regulated through the soil discharging component 6.
According to the preferred technical scheme in the embodiment, the frame body 1 comprises a top plate 11, a partition plate 12 and support columns 13, the four support columns 13 are fixedly connected to four corners of the top plate 11 and the partition plate 12, openings are formed in the bottom of the partition plate 12, the bottom of an outer pipe 21 is fixedly connected with the opening side, the top plate 11 is used for fixing a controller 51, supporting force is improved for a hydraulic telescopic rod 52, and the hydraulic telescopic rod 52 can drive a compression ring 53 to apply pressure to a soil layer;
the top of the outer tube 21 is bucket-shaped, and the sealing assembly 7 is arranged below the pressure regulating assembly 5 and used for sealing the upper opening of the outer tube 21, so that the top of the bucket-shaped outer tube 21 is convenient for placing soil materials, the time for discharging is shortened, and meanwhile, the top opening of the outer tube 21 is sealed through the sealing assembly 7 in the experiment, and as the outer tube 21 cannot completely simulate a stratum, the current is led into the air from the upper side in order to avoid deviation caused by the experiment;
the sealing assembly 7 comprises a mounting column 71, a slip ring 72 and a sealing cover 73, wherein the mounting column 71 is fixedly connected with the bottom center of the controller 51, the slip ring 72 is slidably sleeved on the mounting column 71, the sealing cover 73 is fixedly connected to the outer side of the slip ring 72 and is in an inverted circular truncated cone shape and is tightly contacted with an upper opening of the outer tube 21, a plurality of through holes are formed in the sealing cover 73, the movable end of the hydraulic telescopic rod 52 penetrates through the through holes, the slip ring 72 is enabled to move on the mounting column 71 through the controller 51, so that the sealing cover 73 is driven to move up and down, the top opening of the outer tube 21 is sealed when an experiment is started, and the sealing assembly is opened when the experiment is not started;
the outer tube 21 is made of insulating materials, the connecting rod 23 and the inner tube 22 are made of conductive metal, the connecting rod 23 is fixedly arranged on the side wall of the bottom end of the inner tube 22, and the connecting rod 23 and the inner tube 22 are required to be conductive because the current quantity of the inner tube 22 needs to be detected by using the power-on column 4, and meanwhile, the outer tube 21 needs to be insulated in order to avoid the loss of current;
the soil discharging assembly 6 comprises a bottom plate 61, an air cylinder 62 and a mounting plate 63, four corners of the mounting plate 63 are fixedly connected with a connecting rod 23 which extends downwards, the air cylinder 62 is fixedly arranged in the center of the mounting plate 63, the moving end is vertically upwards, the bottom plate 61 is fixedly connected with the moving end of the air cylinder 62, when the experiment is finished, in order to conveniently discharge soil materials in the outer tube 21, the bottom opening of the outer tube 21 is leaked out through the air cylinder 62, and meanwhile, the compression ring 53 is matched to press the soil materials in the outer tube 21, so that the soil materials are discharged, the soil materials are conveniently transferred, and meanwhile, the soil materials adhered on the outer tube 21 and the inner tube 22 are cleaned through the compression ring 53, so that the cleaning and reuse of the measuring device are facilitated;
the bottom plate 61 is a conical circular plate, the top end of the bottom plate seals the bottom of the inner tube 22, the outer side of the bottom plate seals the bottom of the outer tube 21, the conical bottom plate 61 facilitates the dispersion of the downward-moving soil materials to two sides, the accumulation of the soil materials on the bottom plate 61 is avoided, and meanwhile, the cleaning of the soil materials is quickened;
the mounting plate 63 is provided with the soil outlet 8 in a clamping manner, a plurality of soil outlets 8 are annularly arranged around the cylinder 62 and are positioned on the outer ring of the bottom plate 61 in vertical projection, soil materials sliding from the bottom plate 61 are discharged through the soil outlet 8 and cannot be accumulated, so that the soil materials are convenient to collect and reuse, the subsequent cleaning step of measurement is saved, and convenience is brought to experiments;
the pressing ring 53 is separated from the outer tube 21 when it is moved to the uppermost end, and the distance is 20cm to 30cm, so that the pressing ring 53 is required to be separated from the outer tube 21 when it is not in use in order to ensure the addition of the earth material, thereby allowing the earth material to be added.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (6)
1. A geophysical logging electrical experimental simulation well apparent resistivity measurement device, comprising:
the device comprises a frame body (1), wherein the frame body (1) is used for installing a measuring device main body;
the pipeline assembly (2), the pipeline assembly (2) comprises an outer pipe (21), an inner pipe (22) and a connecting rod (23), the outer pipe (21) is fixedly connected with the frame body (1), the inner pipe (22) is fixedly connected inside the outer pipe (21) through the connecting rod (23) at two sides, and the inner part of the outer pipe (21) is divided into an external stratum simulation area and an internal power generation area;
an energizing assembly (3), the energizing assembly (3) being mounted on the outer tube (21) and introducing an electric current into the inner tube (22) through the connecting rod (23);
the energizing column (4) is arranged inside the inner tube (22) and is used for collecting the current led into the inner tube (22) and carrying out data processing;
the pressure adjusting assembly (5), the pressure adjusting assembly (5) is fixedly arranged on the top wall of the frame body (1) and used for changing the soil layer pressure of a stratum simulation area, the pressure adjusting assembly (5) comprises a controller (51), hydraulic telescopic rods (52) and a compression ring (53), the controller (51) is fixedly arranged on the top wall of the frame body (1), a plurality of the hydraulic telescopic rods (52) are fixedly and annularly arranged at the bottom of the controller (51), and the compression ring (53) is fixedly connected to the moving ends of the hydraulic telescopic rods (52) and is arranged between the outer pipe (21) and the inner pipe (22) in a sealing sliding manner;
the soil discharging assembly (6) is arranged at the bottom of the pipeline assembly (2) and is used for discharging soil materials in the soil layer simulation area;
the frame body (1) comprises a top plate (11), a partition plate (12) and supporting columns (13), wherein the four supporting columns (13) are fixedly connected to four corners of the top plate (11) and the partition plate (12), an opening is formed in the bottom of the partition plate (12), and the bottom of the outer tube (21) is fixedly connected with the opening side;
the top of the outer tube (21) is in a bucket shape, and a sealing assembly (7) is arranged below the pressure adjusting assembly (5) and used for sealing the upper opening of the outer tube (21);
the sealing assembly (7) comprises a mounting column (71), a sliding ring (72) and a sealing cover (73), wherein the mounting column (71) is fixedly connected with the bottom center of the controller (51), the sliding ring (72) is slidably sleeved on the mounting column (71), the sealing cover (73) is fixedly connected to the outer side of the sliding ring (72) and is in an inverted circular truncated cone shape and is tightly contacted with an upper opening of the outer tube (21), a plurality of through openings are formed in the sealing cover (73), and the movable end of the hydraulic telescopic rod (52) penetrates through the through openings.
2. The geophysical well logging electrical experimental simulation well apparent resistivity measuring device according to claim 1, wherein the outer tube (21) is made of an insulating material, the connecting rod (23) and the inner tube (22) are made of conductive metal, and the connecting rod (23) is fixedly mounted on the bottom end side wall of the inner tube (22).
3. The geophysical well logging electrical experimental simulation well apparent resistivity measuring device according to claim 1, wherein the soil discharging assembly (6) comprises a bottom plate (61), an air cylinder (62) and a mounting plate (63), four corners of the mounting plate (63) are fixedly connected with connecting rods (23) extending downwards, the air cylinder (62) is fixedly arranged at the center of the mounting plate (63), the moving end is vertically upwards, and the bottom plate (61) is fixedly connected with the moving end of the air cylinder (62).
4. A geophysical well logging electrical experimental simulation well apparent resistivity measuring device according to claim 3, wherein the bottom plate (61) is a conical circular plate, the top end of which closes the bottom of the inner tube (22) and the outer side of which closes the bottom of the outer tube (21).
5. The geophysical well logging electrical experimental simulation well apparent resistivity measuring device according to claim 4, wherein the mounting plate (63) is provided with a plurality of soil outlets (8) in a clamping manner, the soil outlets (8) are annularly arranged around the cylinder (62) and are positioned on the outer ring of the bottom plate (61) in a vertical projection.
6. A geophysical well logging electrical experimental simulation well apparent resistivity measuring device according to claim 1, characterised in that the pressure ring (53) is separated from the outer tube (21) when moved to the topmost end, with a spacing of 20cm-30cm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111148134.4A CN113866843B (en) | 2021-09-29 | 2021-09-29 | Geophysical logging electrical method experimental simulation well apparent resistivity measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111148134.4A CN113866843B (en) | 2021-09-29 | 2021-09-29 | Geophysical logging electrical method experimental simulation well apparent resistivity measuring device |
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| Publication Number | Publication Date |
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| CN113866843A CN113866843A (en) | 2021-12-31 |
| CN113866843B true CN113866843B (en) | 2024-01-05 |
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| CN202111148134.4A Active CN113866843B (en) | 2021-09-29 | 2021-09-29 | Geophysical logging electrical method experimental simulation well apparent resistivity measuring device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2114996C1 (en) * | 1996-04-10 | 1998-07-10 | Аркадий Маркович Долинский | Frontal underground mining plant |
| CN203337838U (en) * | 2013-07-08 | 2013-12-11 | 南通市中京机械有限公司 | Device for measuring apparent resistivity of experimental simulation well with geophysical electrical well logging method |
| CN105806697A (en) * | 2016-05-03 | 2016-07-27 | 大连交通大学 | Test device and method for simulating influence of tunnel excavation on peripheral pipelines |
| CN108455819A (en) * | 2018-05-02 | 2018-08-28 | 浙江明境环保科技有限公司 | A kind of sludge automatic processing equipment and method |
| RU2691920C1 (en) * | 2018-06-13 | 2019-06-18 | Цой Валентин | Method and device for electric logging of cased wells |
| CN210894744U (en) * | 2019-07-31 | 2020-06-30 | 中南大学 | Geophysical exploration simulation device |
| CN214279383U (en) * | 2021-02-26 | 2021-09-24 | 赣南医学院 | Medical intelligent injection simulation experiment device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120031616A1 (en) * | 2010-08-03 | 2012-02-09 | Hall David R | Cylindrical Truss Structure Reinforced Pipe |
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2021
- 2021-09-29 CN CN202111148134.4A patent/CN113866843B/en active Active
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|---|---|---|---|---|
| RU2114996C1 (en) * | 1996-04-10 | 1998-07-10 | Аркадий Маркович Долинский | Frontal underground mining plant |
| CN203337838U (en) * | 2013-07-08 | 2013-12-11 | 南通市中京机械有限公司 | Device for measuring apparent resistivity of experimental simulation well with geophysical electrical well logging method |
| CN105806697A (en) * | 2016-05-03 | 2016-07-27 | 大连交通大学 | Test device and method for simulating influence of tunnel excavation on peripheral pipelines |
| CN108455819A (en) * | 2018-05-02 | 2018-08-28 | 浙江明境环保科技有限公司 | A kind of sludge automatic processing equipment and method |
| RU2691920C1 (en) * | 2018-06-13 | 2019-06-18 | Цой Валентин | Method and device for electric logging of cased wells |
| CN210894744U (en) * | 2019-07-31 | 2020-06-30 | 中南大学 | Geophysical exploration simulation device |
| CN214279383U (en) * | 2021-02-26 | 2021-09-24 | 赣南医学院 | Medical intelligent injection simulation experiment device |
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