CN109884728B - Fine and close oil exploration device - Google Patents
Fine and close oil exploration device Download PDFInfo
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- CN109884728B CN109884728B CN201910246618.9A CN201910246618A CN109884728B CN 109884728 B CN109884728 B CN 109884728B CN 201910246618 A CN201910246618 A CN 201910246618A CN 109884728 B CN109884728 B CN 109884728B
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Abstract
The invention belongs to the field of oil exploration, and particularly relates to a compact oil exploration device which comprises a fixed transverse plate, wherein a pull pipe is fixedly connected to the fixed transverse plate in a penetrating mode, fixed vertical plates are fixedly connected to two sides of the lower end of the fixed transverse plate, a supporting seat is fixedly connected to the lower ends of the fixed vertical plates, a sliding rod horizontally arranged is fixedly connected between the two fixed vertical plates, a fixed pipe is sleeved outside the sliding rod, the lower end of the pull pipe is fixedly connected with the side wall of the fixed pipe, permanent magnetic sliding blocks are arranged on two sides of the fixed pipe, heteropolar attraction is formed between the two permanent magnetic sliding blocks, the permanent magnetic sliding blocks are sleeved on the sliding rod, an electromagnet is fixedly connected to the middle of the sliding rod, a first elastic corrugated pipe is fixedly connected between the permanent magnetic sliding blocks and the fixed pipe, a fixed rod is fixedly connected to. The method is simple to operate, has a good effect on the compact sandstone, and can help improve the exploration efficiency of the compact oil.
Description
Technical Field
The invention belongs to the field of oil exploration, and particularly relates to a compact oil exploration device.
Background
The compact oil refers to oil aggregation which is clamped in or close to a compact reservoir stratum of a high-quality crude oil layer system and is formed without large-scale long-distance migration, and the compact oil is an unconventional oil resource and has the characteristics of low porosity and low permeability of the reservoir stratum.
The compact oil exploration object is different from a conventional oil and gas reservoir, the main exploration object is compact sandstone or lake-phase carbonate rock which is layered with a main hydrocarbon source rock, the final aim is to integrally control the scale of the compact oil reserves, a benefit reserve area is provided for development and production, and technical accumulation is achieved.
To this end, we propose a compact oil exploration device to solve the above problems.
Disclosure of Invention
The invention aims to provide a compact oil exploration device with good clamping effect and high clamping success rate aiming at the problem of poor clamping effect of the existing exploration device.
In order to achieve the purpose, the invention adopts the following technical scheme: a compact oil exploration device comprises a fixed transverse plate, wherein a pull pipe is fixedly connected to the fixed transverse plate in a penetrating manner, fixed vertical plates are fixedly connected to two sides of the lower end of the fixed transverse plate, a supporting seat is fixedly connected to the lower ends of the fixed vertical plates, a horizontally arranged sliding rod is fixedly connected between the two fixed vertical plates, a fixed pipe is sleeved outside the sliding rod, the lower end of the pull pipe is fixedly connected with the side wall of the fixed pipe, permanent magnetic sliders are arranged on two sides of the fixed pipe, heteropolar attraction is generated between the two permanent magnetic sliders, the permanent magnetic sliders are sleeved on the sliding rod, an electromagnet is fixedly connected to the middle part of the sliding rod, a first elastic corrugated pipe is fixedly connected between the permanent magnetic sliders and the fixed pipe, a fixed rod is fixedly connected to the lower ends of the permanent magnetic sliders, and horizontal fixing strips are fixedly connected to the opposite side walls, the horizontal fixing strip is rotatably connected with a rotating arm, the lower end of the fixing rod is connected with the side wall of the rotating arm in a sliding mode through a sliding mechanism, the lower end of the rotating arm is fixedly connected with a shovel plate, and the upper end of the rotating arm is fixedly connected with the side wall of the fixed vertical plate through a resetting mechanism.
In the compact oil exploration device, one end, far away from the fixed vertical plate, of the horizontal fixing strip is provided with a groove, a first rotating shaft is rotatably connected in the groove, and the first rotating shaft penetrates through the rotating arm and is fixedly connected with the rotating arm.
In the above-described apparatus for dense oil exploration, a length of a portion of the swivel arm located on an upper side of the first swivel shaft is greater than a length of a portion of the swivel arm located on a lower side of the first swivel shaft.
In the above-mentioned compact oil exploration apparatus, the sliding mechanism includes a connecting rod fixedly connected to the lower end of the fixing rod, the lower end of the connecting rod is fixedly connected with a fixing cross bar, both sides of the lower end of the fixing cross bar are fixedly connected with fixing vertical bars, a second rotating shaft is rotatably connected between the two fixing vertical bars, and the second rotating shaft is coaxially and fixedly connected with two rotating wheels; the side wall of the rotating arm is provided with a step, the step is provided with a strip-shaped bulge, and the two rotating wheels are respectively positioned at two sides of the strip-shaped bulge.
In the above-mentioned compact oil exploration device, the lower extreme of shovel board is the slope setting, the equal fixedly connected with backplate in both ends of shovel board.
In the above-mentioned compact oil exploration device, the return mechanism includes a spring, and both ends of the spring are respectively fixedly connected with the side wall of the fixed vertical plate and the side wall of the rotating arm.
In the above-mentioned compact oil exploration device, the reset mechanism includes the elastic air bag, one side of elastic air bag and the lateral wall fixed connection of fixed riser, the opposite side of elastic air bag and the lateral wall looks butt contact of rotor arm, the upper end fixedly connected with one-way admission valve of elastic air bag, the lower extreme fixedly connected with one-way blast pipe of elastic air bag.
In the above-mentioned compact oil exploration device, the one-way exhaust pipe includes an L-shaped pipe, a horizontal section of the L-shaped pipe is fixedly connected with a side wall of the horizontal fixing strip, an opening of a vertical section of the L-shaped pipe is communicated with the elastic air bag, and an opening of a horizontal section of the L-shaped pipe is fixedly connected with the one-way exhaust valve.
In the above-mentioned fine and close oil exploration device, the supporting seat includes the connecting pipe, the lower extreme fixed connection of the fixed riser in upper end of connecting pipe, the lower extreme fixedly connected with second elasticity bellows of connecting pipe, the lower extreme fixedly connected with antiskid seat of second elasticity bellows, the upper end of connecting pipe is linked together through communicating pipe and fixed pipe, sliding seal connects between permanent magnetism slider and the slide bar.
In the above apparatus for exploring dense oil, a sealed space formed by the second elastic bellows, the first elastic bellows, the fixed pipe and the communicating pipe is filled with sealing oil.
Compared with the prior art, the compact oil exploration device has the advantages that:
1. according to the invention, by arranging the electromagnet and the permanent magnet slide blocks, the separation and the aggregation of the two permanent magnet slide blocks can be realized by changing the current direction of the electromagnet, so that the opening and the closing of the rotating arm are controlled, the clamping of the compact sandstone is realized, the operation difficulty is low, and the practicability is strong.
2. According to the invention, by arranging the guard plate, the protection and leakage-proof effects on the compact sandstone can be improved, the throwing condition in the lifting process is reduced, and the sampling amount is increased.
3. By arranging the elastic air bag and the one-way valve, when the rotating arm is opened towards two sides, gas in the elastic air bag can be discharged from the one-way exhaust pipe, and the small-particle sandstone on the surface of the large compact sandstone is blown away, so that the clamping is convenient.
4. According to the clamping device, the second elastic corrugated pipe is arranged, when the two permanent magnet sliding blocks move towards two sides to clamp, air in the second elastic corrugated pipe can be sucked, so that the second elastic corrugated pipe is shortened, the gravity center of the whole clamping device is lowered, and clamping of compact sandstone is better achieved.
5. According to the invention, the sealing oil is filled in the elastic corrugated pipe, so that the elastic corrugated pipe has more stable property compared with gas, and is less influenced by the environment, especially the temperature.
Drawings
FIG. 1 is a schematic view of an open state of an embodiment 1 of a compact oil exploration apparatus according to the present invention;
FIG. 2 is a schematic view showing a gripping state of an example 1 of a compact oil exploration apparatus according to the present invention;
FIG. 3 is a schematic structural view of a sliding mechanism in an embodiment 1 of a compact oil exploration apparatus according to the present invention;
FIG. 4 is a schematic view of an open state of an embodiment 2 of a compact oil exploration apparatus provided in the present invention;
FIG. 5 is a schematic view showing the gripping state of an example 2 of a compact oil exploration apparatus according to the present invention;
FIG. 6 is a schematic view of an open state of an embodiment 3 of a compact oil exploration apparatus provided in the present invention;
FIG. 7 is a schematic diagram showing the gripping state of an example 3 of a compact oil exploration apparatus according to the present invention.
In the figure, 1 fixed transverse plate, 2 pull tube, 3 fixed vertical plate, 4 supporting seats, 5 sliding rod, 6 fixed tube, 7 permanent magnetic slide block, 8 first elastic corrugated tube, 9 fixed rod, 10 horizontal fixed strip, 11 rotating arm, 12 sliding mechanism, 13 shovel plate, 14 resetting mechanism, 15 first rotating shaft, 16 connecting rod, 17 fixed horizontal strip, 18 fixed vertical strip, 19 second rotating shaft, 20 rotating wheel, 21 step, 22 strip-shaped bulge, 23 guard plate, 24 spring, 25 elastic air bag, 26 one-way air inlet valve, 27 one-way exhaust pipe, 28L-shaped tube, 29 one-way exhaust valve, 30 connecting tube, 31 second elastic corrugated tube, 32 antiskid seat, 33 communicating tube and 34 electromagnet.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. 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. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
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. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Example 1
As shown in figures 1-3, a compact oil exploration device comprises a fixed transverse plate 1, a pull tube 2 is fixedly connected to the fixed transverse plate 1 in a penetrating manner, the upper end of the pull tube 2 is connected with an aboveground lifting device, fixed vertical plates 3 are fixedly connected to both sides of the lower end of the fixed transverse plate 1, a support seat 4 is fixedly connected to the lower ends of the fixed vertical plates 3, a horizontally arranged sliding rod 5 is fixedly connected between the two fixed vertical plates 3, a fixed tube 6 is sleeved outside the sliding rod 5, the lower end of the pull tube 2 is fixedly connected with the side wall of the fixed tube 6, permanent magnetic sliders 7 are arranged on both sides of the fixed tube 6, heteropolar attraction is generated between the two permanent magnetic sliders 7, the permanent magnetic sliders 7 are sleeved on the sliding rod 5, an electromagnet 34 is fixedly connected to the middle part of the sliding rod 5, a threading hole is formed in the side wall of the fixed tube 6 to meet the power supply requirement of the electromagnet 34, the first elastic bellows 8 is made of rubber and can extend and contract along the axial direction thereof.
The lower end of the permanent magnet sliding block 7 is fixedly connected with a fixed rod 9, the opposite side walls of the two fixed vertical plates 3 are fixedly connected with horizontal fixed strips 10, the horizontal fixed strips 10 are rotatably connected with rotating arms 11, specifically, one ends of the horizontal fixed strips 10 far away from the fixed vertical plates 3 are provided with slots, the slots are rotatably connected with first rotating shafts 15, the first rotating shafts 15 penetrate through the rotating arms 11 and are fixedly connected with the rotating arms 11, it is worth mentioning that the length of the upper side parts of the rotating arms 11 on the first rotating shafts 15 is larger than that of the lower side parts of the rotating arms 11 on the first rotating shafts 15, according to the lever principle, the rotating arms 11 can clamp heavier objects, the lower end of the fixed rod 9 is slidably connected with the side walls of the rotating arms 11 through a sliding mechanism 12, the lower end of the rotating arms 11 is fixedly connected with shoveling plates 13, it should be noted that the lower ends of the, the equal fixedly connected with backplate 23 in both ends of shovel board 13 to reduce the condition of shedding that appears in the promotion process, improve the sample volume, the lateral wall fixed connection of canceling release mechanical system 14 and fixed riser 3 is passed through to the upper end of rotor arm 11.
The sliding mechanism 12 comprises a connecting rod 16 fixedly connected to the lower end of the fixing rod 9, the lower end of the connecting rod 16 is fixedly connected with a fixing transverse bar 17, two sides of the lower end of the fixing transverse bar 17 are fixedly connected with fixing vertical bars 18, a second rotating shaft 19 is rotatably connected between the two fixing vertical bars 18, and two rotating wheels 20 are coaxially and fixedly connected to the second rotating shaft 19; the lateral wall of the rotating arm 11 is provided with a step 21, the step 21 is provided with a strip-shaped protrusion 22, the two rotating wheels 20 are respectively positioned at two sides of the strip-shaped protrusion 22, the distance between the two rotating wheels 20 is equal to the width of the strip-shaped protrusion 22, and the two rotating wheels 20 are limited through the strip-shaped protrusion 22.
The reset mechanism 14 comprises a spring 24, and two ends of the spring 24 are respectively fixedly connected with the side wall of the fixed vertical plate 3 and the side wall of the rotating arm 11.
The working principle of the embodiment is as follows:
in an initial state, as shown in fig. 1, after the position of the tight sandstone is determined, the pipe pulling 2 is lowered along the mine until the two shoveling plates 13 are respectively positioned at two sides with tight sandstone blocks, then the energizing current direction of the electromagnet 34 is changed into the opposite direction, under the action of the magnetic force of the electromagnet 34, the two permanent magnetic sliding blocks 7 respectively move towards two sides (as shown in fig. 2), the permanent magnetic sliding blocks 7 drive the rotating wheel 20 to move through the fixed rod 9, the rotating wheel 20 is in contact with the upper end of the rotating arm 11, the upper end of the rotating arm 11 is pushed towards two ends by overcoming the elastic force of the spring 24, the lower ends of the two rotating arms 11 are in a super-middle closed state, the tight sandstone blocks are clamped, and then the whole exploration device is lifted upwards through the pipe pulling 2.
After the sandstone block is out of the well, the electromagnet 34 is changed into the opposite direction, the electromagnet 34 generates a magnetic field in the opposite direction, the two permanent magnet sliding blocks 7 move towards the mutually approaching direction, the two rotating arms 11 rotate under the action of the spring 24, the rotating arms automatically reset, and the compact sandstone block is put down.
Example 2
As shown in fig. 4 to 5, the present embodiment is different from embodiment 1 in that: the reset mechanism 14 comprises an elastic air bag 25, the elastic air bag 25 can be made of elastic rubber, one side of the elastic air bag 25 is fixedly connected with the side wall of the fixed vertical plate 3, the other side of the elastic air bag 25 is in contact with the side wall of the rotating arm 11 in an abutting mode, the upper end of the elastic air bag 25 is fixedly connected with a one-way air inlet valve 26, and the lower end of the elastic air bag 25 is fixedly connected with a one-way exhaust pipe 27.
The one-way exhaust pipe 27 comprises an L-shaped pipe 28, the horizontal section of the L-shaped pipe 28 is fixedly connected with the side wall of the horizontal fixing strip 10, the opening of the vertical section of the L-shaped pipe 28 is communicated with the elastic air bag 25, the opening of the horizontal section of the L-shaped pipe 28 is fixedly connected with a one-way exhaust valve 29, and an exhaust port of the one-way exhaust valve 29 inclines downwards and is opposite to the shovel plate 13.
In this embodiment, when the rotating arm 11 rotates, the elastic air bag 25 is squeezed, so that the air in the elastic air bag 25 is exhausted from the one-way exhaust valve 29, and the dust on the shovel 13 is blown away, and when the rotating arm 11 is reset, the elastic air bag 25 automatically resets, and the air is sucked from the one-way intake valve 26 and is replenished to the inside, so as to prepare for the next blowing.
Example 3
As shown in fig. 6 to 7, the present embodiment is different from embodiment 2 in that: supporting seat 4 includes connecting pipe 30, the lower extreme fixed connection of the fixed riser 3 in upper end of connecting pipe 30, the lower extreme fixedly connected with second elastic bellows 31 of connecting pipe 30, second elastic bellows 31 freely stretches out and draws back along its axis direction, the lower extreme fixedly connected with antiskid seat 32 of second elastic bellows 31, the upper end of connecting pipe 30 is linked together through communicating pipe 33 and fixed pipe 6, sliding seal connects between permanent magnetism slider 7 and the slide bar 5, be equipped with the sealing washer in the through wires hole of fixed pipe 6, make the inside airtight space that forms of fixed pipe 6.
In this embodiment, when permanent magnetism slider 7 moved towards both sides, can take out the gas in the second elasticity bellows 31 to reduce the whole height of device, reduce the clamp to tight sandstone piece and get the degree of difficulty.
The sealed space formed by the second elastic bellows 31, the first elastic bellows 8, the fixed pipe 6, and the communication pipe 33 is filled with sealing oil.
By filling the sealing oil, the influence of environment, particularly temperature factors, is reduced by utilizing the more stable physical property of the sealing oil, and the operation stability is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. A compact oil exploration device comprises a fixed transverse plate (1), wherein a pull tube (2) penetrates through and is fixedly connected to the fixed transverse plate (1), and is characterized in that fixed vertical plates (3) are fixedly connected to two sides of the lower end of the fixed transverse plate (1), a supporting seat (4) is fixedly connected to the lower end of each fixed vertical plate (3), a horizontally arranged sliding rod (5) is fixedly connected between the two fixed vertical plates (3), a fixed tube (6) is sleeved outside each sliding rod (5), the lower end of each pull tube (2) is fixedly connected with the side wall of each fixed tube (6), permanent magnetic sliding blocks (7) are arranged on two sides of each fixed tube (6), heteropolar attraction is formed between the two permanent magnetic sliding blocks (7), the permanent magnetic sliding blocks (7) are sleeved on the sliding rods (5), and an electromagnet (34) is fixedly connected to the middle part of each sliding rod (5), electromagnet (34) are located the inside of fixed pipe (6), the first elasticity bellows of fixedly connected with (8) between permanent magnetism slider (7) and the fixed pipe (6), lower extreme fixedly connected with dead lever (9) of permanent magnetism slider (7), two equal fixedly connected with level fixed strip (10) on the relative lateral wall of fixed riser (3), it is connected with rotor arm (11) to rotate on level fixed strip (10), the lower extreme of dead lever (9) passes through the lateral wall sliding connection of slide mechanism (12) and rotor arm (11), the lower extreme fixedly connected with shovel board (13) of rotor arm (11), the lateral wall fixed connection of canceling release mechanical system (14) and fixed riser (3) is passed through to the upper end of rotor arm (11).
2. The compact oil exploration device according to claim 1, characterized in that the end of the horizontal fixing strip (10) far from the fixed riser (3) is provided with a slot, a first rotating shaft (15) is rotatably connected in the slot, and the first rotating shaft (15) penetrates through the rotating arm (11) and is fixedly connected with the rotating arm (11).
3. Compact oil exploration device according to claim 2, characterized in that the length of the portion of said rotating arm (11) located on the upper side of said first rotation axis (15) is greater than the length of the portion of said rotating arm (11) located on the lower side of said first rotation axis (15).
4. The compact oil exploration device as claimed in claim 1, wherein said sliding mechanism (12) comprises a connecting rod (16) fixedly connected to the lower end of a fixed rod (9), a fixed cross bar (17) is fixedly connected to the lower end of said connecting rod (16), fixed vertical bars (18) are fixedly connected to both sides of the lower end of said fixed cross bar (17), a second rotating shaft (19) is rotatably connected between two fixed vertical bars (18), and two rotating wheels (20) are coaxially and fixedly connected to said second rotating shaft (19); the side wall of the rotating arm (11) is provided with a step (21), the step (21) is provided with a strip-shaped protrusion (22), and the two rotating wheels (20) are respectively positioned on two sides of the strip-shaped protrusion (22).
5. The compact oil exploration device according to claim 1, characterized in that the lower end of said shovel plate (13) is inclined, and both ends of said shovel plate (13) are fixedly connected with guard plates (23).
6. The compact oil exploration device according to claim 1, characterized in that said return mechanism (14) comprises a spring (24), the two ends of said spring (24) being fixedly connected to the side walls of the fixed riser (3) and the rotating arm (11), respectively.
7. The densified oil exploration device according to claim 1, wherein the reset mechanism (14) comprises an elastic air bag (25), one side of the elastic air bag (25) is fixedly connected with the side wall of the fixed riser (3), the other side of the elastic air bag (25) is in contact with the side wall of the rotating arm (11) in an abutting mode, a one-way air inlet valve (26) is fixedly connected to the upper end of the elastic air bag (25), and a one-way exhaust pipe (27) is fixedly connected to the lower end of the elastic air bag (25).
8. The compact oil exploration device according to claim 7, characterized in that said one-way exhaust pipe (27) comprises an L-shaped pipe (28), the horizontal section of said L-shaped pipe (28) is fixedly connected with the side wall of the horizontal fixing strip (10), the opening of the vertical section of said L-shaped pipe (28) is communicated with the elastic air bag (25), and the opening of the horizontal section of said L-shaped pipe (28) is fixedly connected with a one-way exhaust valve (29).
9. The compact oil exploration device according to claim 1, wherein the supporting seat (4) comprises a connecting pipe (30), the upper end of the connecting pipe (30) is fixedly connected with the lower end of the fixed riser (3), the lower end of the connecting pipe (30) is fixedly connected with a second elastic corrugated pipe (31), the lower end of the second elastic corrugated pipe (31) is fixedly connected with an anti-skid seat (32), the upper end of the connecting pipe (30) is communicated with the fixed pipe (6) through a communicating pipe (33), and the permanent magnet slider (7) is connected with the sliding rod (5) in a sliding and sealing manner.
10. The densified oil exploration device according to claim 9, wherein a sealed space formed by the second elastic corrugated pipe (31), the first elastic corrugated pipe (8), the fixed pipe (6) and the communicating pipe (33) is filled with sealing oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910246618.9A CN109884728B (en) | 2019-03-29 | 2019-03-29 | Fine and close oil exploration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910246618.9A CN109884728B (en) | 2019-03-29 | 2019-03-29 | Fine and close oil exploration device |
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| CN109884728A CN109884728A (en) | 2019-06-14 |
| CN109884728B true CN109884728B (en) | 2020-11-24 |
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| EP0601664A1 (en) * | 1992-12-07 | 1994-06-15 | Grondmechanica Delft | Measuring device for underground probing, and method for the application thereof |
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| CN102680275A (en) * | 2012-05-25 | 2012-09-19 | 北京卫星制造厂 | Device for sampling shallow soil of extraterrestrial star |
| CN108195613A (en) * | 2017-12-23 | 2018-06-22 | 郑州搜趣信息技术有限公司 | One kind is convenient for fixed slope surface soil sampler |
| CN109163925A (en) * | 2018-09-26 | 2019-01-08 | 苏群芳 | A kind of ocean engineering Seafloor sediment sampling device |
| CN109269828A (en) * | 2018-10-12 | 2019-01-25 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of geological mapping is with taking indigenous equipment |
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2019
- 2019-03-29 CN CN201910246618.9A patent/CN109884728B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0601664A1 (en) * | 1992-12-07 | 1994-06-15 | Grondmechanica Delft | Measuring device for underground probing, and method for the application thereof |
| CN102221712A (en) * | 2011-03-17 | 2011-10-19 | 黄河勘测规划设计有限公司 | Automatic testing method of wire line coring drilling hoisting-free pressurized water test |
| CN102680275A (en) * | 2012-05-25 | 2012-09-19 | 北京卫星制造厂 | Device for sampling shallow soil of extraterrestrial star |
| CN108195613A (en) * | 2017-12-23 | 2018-06-22 | 郑州搜趣信息技术有限公司 | One kind is convenient for fixed slope surface soil sampler |
| CN109163925A (en) * | 2018-09-26 | 2019-01-08 | 苏群芳 | A kind of ocean engineering Seafloor sediment sampling device |
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