CN214576985U - Experimental device for deep sea seabed hard rock creeps into coring parameter measurement - Google Patents
Experimental device for deep sea seabed hard rock creeps into coring parameter measurement Download PDFInfo
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- CN214576985U CN214576985U CN202120591840.5U CN202120591840U CN214576985U CN 214576985 U CN214576985 U CN 214576985U CN 202120591840 U CN202120591840 U CN 202120591840U CN 214576985 U CN214576985 U CN 214576985U
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Abstract
The utility model discloses an experimental device for measuring drilling and coring parameters of deep sea seabed hard rock, which comprises a drilling module, a vertical feeding module, a high-pressure container, a hydraulic system and a measurement and control system; the drilling module is fixedly connected with a core bit in series in sequence by a tension and compression sensor, a torque sensor, a core bit and the like, and a temperature sensor and a strain gauge are adhered to the surface of the interlayer wall of the core bit; the rock sample is arranged in a pressure-resistant box body which is provided with high-pressure water medium by a hydraulic system, and a coring bit extends into the pressure-resistant box body from the outside to drill rocks; the measurement and control system collects signals of the tension and compression sensor and the torque sensor, controls the rotating speed and the feeding speed of the coring bit and the pressure of the hydraulic system for injecting water medium into the high-pressure water container, shoots the rock coring action and the excretion process through the high-speed camera, and simulates and measures the deep sea bottom coring process, and has the advantages of simple structure, low cost and the like.
Description
Technical Field
The utility model belongs to the technical field of submarine resource hard rock sample, it is specific relate to a be used for laboratory simulation deep sea seabed hard rock to creep into coring process and rig parameter measurement's experimental apparatus, can regard as the important experiment base device such as drilling tool design, the rig technological improvement of deep sea rock core sample rig.
Background
The development of human society has not kept developing and utilizing various resources. Today, the land resources are gradually exhausted, people are looking at the deep ocean. Nearly 71% of the earth's surface is covered by the ocean, with a total area of about 3.62 hundred million km2, and the seafloor stores extremely abundant mineral resources, including 6000 million tons of mineral resources found to be multi-metal nodules, phosphate rocks, precious and rare element placers, sulfide ores, and the like. With the advent of the deep sea submarine regional resource exploration and development method, mining in deep sea mining areas has become a focus of social attention. All countries in the world begin to face the field of vision to the sea, which is a treasure collecting basin, strives for investments of manpower and material resources, uses seabed mineral resources as future reserve resources, and uses the mining technology of the sea mineral resources as a future strategic target. In order to find out the characteristics of the types, the distribution and the like of the hard mineral resources on the seabed, the current economic method is to carry a seabed micro-drilling machine on the submerged seabed of a deep submersible vehicle to sample rocks, and then research on marine geology, mineral resources, environmental science and the like is carried out, which is the important work of the research on the deep seabed mineral resources at present.
In order to maintain consistent properties (e.g., bedding structure, microbial community, mechanical properties, material composition, etc.) of the core obtained from the sample with the core in situ at the seafloor, it is necessary to properly design the core bit structure and to plan the sampling process parameters, such as rate of penetration and feed, etc. Currently, the numerical simulation method is really an economic research method, and provides some references for the design of the core bit of the submarine drilling rig and the planning of the core process. However, in the high-pressure complex environment existing in the deep sea bottom, the numerical simulation hardly considers the complex factors and the interaction thereof, and the adoption of experimental research for further and deeply understanding the core sampling process in the high-pressure water environment is an important way. Can provide design guidance and experimental basis for the design of a high-efficiency and high-fidelity core sampling drilling machine.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a simple structure and with low costs can bore at laboratory simulation deep sea seabed hard rock and get the core process to excrete the experimental apparatus of isoparametric through series sensing element measurement temperature, stress and rock dust.
The technical scheme of the utility model is that: an experimental device for measuring drilling and coring parameters of deep sea seabed hard rock is composed of a drilling module, a vertical feeding module, a high-pressure container, a hydraulic system and a measurement and control system; the drilling module is fixedly connected with a core bit in series in sequence by a tension and compression sensor, a motor III, a torque sensor, a guide shaft, a piston shaft, a transition shaft and a core bit, and the other end of the tension and compression sensor is fixed on a sliding block II of a vertical feeding module which can slide along the vertical direction; a temperature sensor and a strain gauge are stuck in an interlayer on the inner wall of the coring bit, and a battery and a data acquisition and storage device which are required for acquiring temperature and stress signals are installed in the transition shaft; the upper panel of the high-pressure container is provided with a circular through hole, a rock sample is arranged in the high-pressure container, a core bit of the drilling module enters the high-pressure container from the circular through hole to drill the rock sample, the outer surface of the piston shaft is provided with a plurality of ring grooves, and sealing rings are arranged in the ring grooves and matched with the circular through hole to form sealing; the measurement and control system collects signals of the tension and compression sensor and the torque sensor and controls the rotating speed of the motor III, the moving speed of the sliding block of the vertical feeding sliding table and the pressure of the hydraulic system for injecting aqueous medium into the high-pressure water container.
In the experimental device for measuring the drilling and coring parameters of the deep sea seabed hard rock, the high-pressure container consists of a cubic pressure-resistant box body, a sealing plate II, a transparent sealing plate and a rock sliding platform; the left panel and the rear panel of the pressure-resistant box body are respectively provided with a circular through hole and are respectively sealed by bolts through a sealing plate II and a transparent sealing plate made of transparent materials; the rock sliding platform is a moving functional device consisting of a screw rod I, a motor I fixedly connected with the screw rod, a sliding block I matched with the screw rod and moving, and a deep sea battery for providing electric energy; the rock sliding platform is positioned in the pressure-resistant box body and fixed on the lower panel of the pressure-resistant box body; the rock sample is installed on slider I, realizes removing through observing and controling system control motor I.
In the experimental device for measuring the drilling and coring parameters of the deep sea hard rock, the vertical feeding sliding table is a linear sliding mechanism consisting of a screw rod II, a sliding block II which is matched with and moves along the screw rod and a motor II fixedly connected with the screw rod; the vertical feeding sliding table is installed on the rack, and the bottom of the rack is fixed on an upper side plate of the pressure-resistant box body through bolts.
In the experimental device for measuring the drilling coring parameters of the deep sea seabed hard rock, the coring bit comprises an upper end shaft, a spiral blade, an outer sleeve, an inner sleeve, an end sealing plate and a cutting blade; the outer sleeve and the inner sleeve are cylindrical concentrically arranged tube structures, one end of the outer sleeve and the inner sleeve is welded on the upper end shaft, and the lower end of the outer sleeve and the inner sleeve are welded and sealed through an end sealing plate to form an annular cavity; the outer surface of the outer sleeve is provided with a spiral blade for discharging powder, and the lower surface of the end sealing plate is welded with a plurality of cutting blades for cutting the core; the upper end shaft is provided with a drain hole vertical to the axial direction and a round hole parallel to the axial direction and communicated with the drain hole; a plurality of patch thermocouples and strain gauges are adhered to the wall surface of the gap between the inner sleeve and the outer sleeve in advance and are connected with a data collector and a battery which are arranged in the transition shaft through leads; the upper part of the upper end shaft is provided with an external thread structure with an internal through hole, and the external thread structure is matched with the internal thread at the lower end of the transition shaft to realize the sealing of the inner cavity in the transition shaft.
The experimental device for measuring the deep sea seabed hard rock drilling coring parameters further comprises a high-speed camera which is arranged on the outer side of the pressure-resistant box body and is right opposite to the transparent sealing plate to shoot the coring process in real time.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the experimental device for measuring the deep sea seabed hard rock drilling coring parameter has simple structure and low realization cost; the utility model discloses install the rock sample in the seabed inside the withstand voltage box of taking high pressure water medium to the novel core bit that will take temperature and stress measurement arranges withstand voltage box inside and carries out the drilling rock in, steerable aqueous medium pressure, creep into parameter etc. with low costs, the core process is got to the realization simulation seabed with low costs, shoots the rock through high-speed camera simultaneously and gets the core action and the granule process of excreting, can regard as the drilling tool design of deep sea rock core sample, creep into the experimental apparatus that technology improves.
Drawings
Fig. 1 is a cross-sectional view of the experimental apparatus of the present invention.
Fig. 2 is an axial side view of the experimental apparatus of the present invention.
Fig. 3 is an axial side view of the experimental apparatus of the present invention with dotted lines.
Fig. 4 is the utility model discloses the mobile device schematic diagram of rock sample among the experimental apparatus.
Fig. 5 is a cross-sectional view of the core drilling tool in the experimental apparatus of the present invention.
Fig. 6 is an axial side view of the core drilling tool in the experimental apparatus of the present invention.
In the figure: 1-a hydraulic system; 2, a motor I; 3-a rock sample; 4-a bracket; 5, a sliding block I; 6-a screw rod I; 7, a dovetail machine base I; 8-sealing plate II; 9-pressure resistant box body; 10-a transition shaft; 11-core drill bit; 12-a sealing ring; 13-a piston shaft; 14-a guide shaft; 15-a torque sensor; 16-motor III; 17-a tension and compression sensor; 18-a fixed seat; 19-slide block ii; 20-screw mandrel II; 21-a frame; 22-motor II; 23-dovetail base ii; 24-transparent closing plate; 25-deep sea battery; 26-data collector; 27-a wire; 28-upper end shaft; 29-a helical blade; 30-outer sleeve; 31-patch thermocouple; 32-inner sleeve; 33-end sealing plate; 34-a cutting edge; 35-high speed camera; 36-strain gauge; 37-a drain hole; 38-measurement and control system.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in figures 1-3, the utility model discloses a deep sea seabed hard rock creeps into coring parameter measurement's experimental apparatus comprises drilling module, vertical feed module, high-pressure vessel, hydraulic system 1 and observing and controlling system 38. One end of the tension and compression sensor 17 is fixed on the fixed seat 18 through a bolt, and the other end of the tension and compression sensor is connected with the tail end of the motor III 16 through a bolt; an output shaft of the motor III 16 is fixedly connected with one end of the torque sensor 15, the other end of the torque sensor 15 is fixedly connected with the guide shaft 14, and the guide shaft 14 penetrates through a sliding bearing installed in a circular through hole formed in the fixed seat 18 and can rotate relatively and slide up and down. The end of the guide shaft 14 is fixedly connected with the piston shaft 13, a plurality of ring grooves are formed in the outer surface of the piston shaft 13, sealing rings are installed in the ring grooves and matched with circular through holes formed in the upper end of the pressure-resistant box body 9 to seal the pressure-resistant box body 9, and meanwhile, the piston shaft 13 can rotate and move up and down linearly relative to the pressure-resistant box body 9.
As shown in fig. 5-6, the other end of the piston shaft 13 is fixedly connected to the transition shaft 10 by a screw thread, and the other end of the transition shaft 10 is fixedly connected to the upper end of the core bit 11 by a screw thread. An inner cavity is arranged in the transition shaft 10, and a data acquisition unit 26 with a power supply and a memory card is arranged in the inner cavity; the coring bit 11 is a drilling tool with an interlayer, a strain gauge and a thermocouple inside, and comprises an upper end shaft 28, a spiral blade 29, an outer sleeve 30, an inner sleeve 32, an end sealing plate 33, a cutting blade 34 and the like. The upper shaft 28 is provided with an external thread which cooperates with an internal thread at the lower end of the transition shaft 10 to effect sealing of the interior cavity of the transition shaft 10. The outer sleeve 30 is a cylindrical structure, one end of the outer sleeve is welded on the upper end shaft 28, and the outer surface of the outer sleeve 30 is provided with a spiral blade 29 for discharging powder and assisting cutting in the core sampling process. The inner sleeve 32 is also a cylindrical structure, and is arranged inside the outer sleeve 30 with a certain small gap left between the two, one end of the inner sleeve 32 is also fixedly connected with the upper end shaft 28 by welding, and the inner sleeve 32 and the outer sleeve 30 are coaxially and annularly arranged. The lower ends of the inner sleeve 32 and the outer sleeve 30 are welded and fixed by an end closure plate 33 and sealed, so that only the inner bore of the inner sleeve 32 is open, i.e. the cavity for storing the core. The lower end of the end sealing plate 33 is welded with a plurality of cutting edges 34 for cutting the core and obtaining the core to be sampled. The upper end shaft 28 is provided with a drainage hole 39 which is vertical to the axial direction and is communicated with the drainage hole 39, and a round hole which is parallel to the axial direction and communicated with the drainage hole 39 is processed, so that water in the core bit 11 during the drilling and coring process can be quickly drained through the drainage hole 39, and the disturbance to the core is reduced. As shown in fig. 5, a plurality of patch thermocouples 31 and strain gauges 36 are adhered to the wall surface of the gap between the inner sleeve 32 and the outer sleeve 30 in advance, and are connected with the data collector 26 through the lead 27, so that the acquisition of the related temperature and stress strain data of the coring bit in the coring process is realized; after the experiment is completed, the data storage card of the data acquisition unit 26 is taken out to obtain the data, or the acquired data can be transmitted to the measurement and control system 38 in real time in a wireless transmission mode.
As shown in fig. 1-4, the high-pressure container is composed of a cubic pressure-resistant box body 9, a sealing plate ii 8, a transparent sealing plate 24, a rock sliding platform and the like. The pressure-resistant box body 9 is provided with a circular through hole on the left side, the through hole is used for replacing a rock sample, and the sealing plate II 8 is fixedly arranged at the position of the circular through hole on the left side of the pressure-resistant box body 9 through bolts and a sealing gasket and is used for sealing the through hole during work. The rear side of the pressure-resistant box body 9 is provided with a small circular through hole, a transparent sealing plate 24 made of high-strength transparent material, such as bulletproof glass, is arranged at the position through bolts and sealing gaskets, and the transparent window can be used for observing and shooting the whole process in the subsequent drilling and sampling process. As shown in FIG. 4, the rock sliding platform consists of a screw rod I6, a sliding block I5 which is matched with the screw rod and moves, a motor I2 which is fixedly connected with the screw rod and a deep sea battery 25 which provides electric energy; the rock sliding platform is positioned in the pressure-resistant box body 9 and fixed on the lower panel of the pressure-resistant box body; the motor I2 is communicated with the measurement and control system 38 outside the pressure-resistant box body 9 in a wireless transmission mode through an embedded controller, the measurement and control system 38 sends a signal to control the rotation parameter of the motor I2, and the movement of a rock sample installed on the sliding block I is achieved. The hydraulic system 1 pumps water working medium into the pressure-resistant box 9 through a hydraulic pump and related valves and controls the pressure of the pressure-resistant box.
As shown in figure 1, the vertical feeding sliding table consists of a motor II 22, a screw rod II 20, a sliding block II 19, a dovetail machine base II 23, a fixed seat 18 and a machine frame 21. The rack 21 is fixed on the right side of the upper part of the pressure-resistant box body 9 through bolts, the dovetail base II 23 is fixed on the rack 21 through bolts, the section of the dovetail base II 23 is of a dovetail structure, and the dovetail base is just matched with a dovetail groove at the bottom of the sliding block II 19 and can realize relative sliding; the screw rod II 20 is matched with the threaded hole of the sliding block II 19, the screw rod is installed in a supporting bearing hole of the dovetail base II 23, one end of the screw rod is fixedly connected with the motor II 22, and the motor II 22 is fixed on the rack 21 through a bolt. The fixed seat 18 is fixed on the sliding block II 19 through a bolt.
As shown in fig. 1, the torque sensor 15, the motor iii 16, the tension/compression sensor 17 and the motor ii 22 are connected to a measurement and control system 38 through cables for data acquisition and related control. The high-speed camera 35 is disposed outside the pressure-resistant tank 9, and collects coring processes such as flow field characteristics and drainage characteristics inside the pressure-resistant tank 9 through the transparent sealing plate 24.
The working principle and the steps of the experimental device are as follows:
1. the driving motor II 22 enables the core bit 11 to just contact the rock sample 3, and the piston shaft 13 at the moment also seals the pressure resistant box body 9 to form a piston-like effect;
2. the measurement and control system 38 controls the hydraulic system 1 to control the internal pressure of the pressure-resistant box body 9 so as to reach the phase experiment level;
3. the driving motor II 22 and the driving motor III 16 realize drilling coring, and the coring disturbance and the excretion process in the pressure-resistant box body 9 are collected by a high-speed camera 35; collecting signals of related sensing elements (such as temperature and stress), transmitting and storing;
4. after a coring hole site is tested, the motor I2 can be driven to move the rock sample 3 left and right, and then the sampling test is carried out again;
5. after the experiment is completely finished, the hydraulic system 1 can be controlled to perform pressure relief or drainage on the water working medium in the pressure-resistant box 9, then the driving motor II 22 lifts the whole coring bit 11 away from the pressure-resistant box 9, the data acquisition device 26 in the transition shaft 10 is taken out, and information such as stress strain and temperature in the sampling process is acquired.
Claims (5)
1. The utility model provides an experimental apparatus for deep sea seabed hard rock creeps into coring parameter measurement, characterized by: the drilling and feeding device is composed of a drilling module, a vertical feeding module, a high-pressure container, a hydraulic system and a measurement and control system; the drilling module is fixedly connected with a core bit in series in sequence by a tension and compression sensor, a motor III, a torque sensor, a guide shaft, a piston shaft, a transition shaft and a core bit, and the other end of the tension and compression sensor is fixed on a sliding block II of a vertical feeding module which can slide along the vertical direction; a temperature sensor and a strain gauge are stuck in an interlayer on the inner wall of the coring bit, and a battery and a data acquisition and storage device which are required for acquiring temperature and stress signals are installed in the transition shaft; the upper panel of the high-pressure container is provided with a circular through hole, a rock sample is arranged in the high-pressure container, a core bit of the drilling module enters the high-pressure container from the circular through hole to drill the rock sample, the outer surface of the piston shaft is provided with a plurality of ring grooves, and sealing rings are arranged in the ring grooves to be matched with the circular through hole to form sealing; the measurement and control system collects signals of the tension and compression sensor and the torque sensor and controls the rotating speed of the motor III, the moving speed of the sliding block of the vertical feeding sliding table and the pressure of the hydraulic system for injecting aqueous medium into the high-pressure water container.
2. The deep sea seafloor hard rock drilling coring parameter measurement experimental device of claim 1, wherein the deep sea seafloor hard rock drilling coring parameter measurement experimental device comprises: the high-pressure container consists of a cubic pressure-resistant box body, a sealing plate II, a transparent sealing plate and a rock sliding platform; the left panel and the rear panel of the pressure-resistant box body are respectively provided with a circular through hole and are respectively sealed by bolts through a sealing plate II and a transparent sealing plate made of transparent materials; the rock sliding platform is a moving functional device consisting of a screw rod I, a motor I fixedly connected with the screw rod, a sliding block I matched with the screw rod and moving, and a deep sea battery for providing electric energy; the rock sliding platform is positioned in the pressure-resistant box body and fixed on the lower panel of the pressure-resistant box body; the rock sample is installed on slider I, realizes removing through observing and controling system control motor I.
3. The deep sea seafloor hard rock drilling coring parameter measurement experimental device of claim 1, wherein the deep sea seafloor hard rock drilling coring parameter measurement experimental device comprises: the vertical feeding sliding table is a linear sliding mechanism consisting of a screw rod II, a sliding block II matched with and moving along the screw rod and a motor II fixedly connected with the screw rod; the vertical feeding sliding table is installed on the frame, and the bottom of the frame is fixed on the upper side plate of the pressure-resistant box body through bolts.
4. The deep sea seafloor hard rock drilling coring parameter measurement experimental device of claim 1, wherein the deep sea seafloor hard rock drilling coring parameter measurement experimental device comprises: the coring bit comprises an upper end shaft, a spiral blade, an outer sleeve, an inner sleeve, an end sealing plate and a cutting blade; the outer sleeve and the inner sleeve are cylindrical and concentrically arranged tube structures, one end of the outer sleeve and the inner sleeve is welded on the upper end shaft, and the lower end of the outer sleeve and the inner sleeve are welded and sealed through an end sealing plate to form an annular cavity; the outer surface of the outer sleeve is provided with a spiral blade for discharging powder, and the lower surface of the end sealing plate is welded with a plurality of cutting blades for cutting the core; the upper end shaft is provided with a drain hole vertical to the axial direction and a round hole parallel to the axial direction and communicated with the drain hole; a plurality of patch thermocouples and strain gauges are adhered to the wall surface of the gap between the inner sleeve and the outer sleeve in advance and are connected with a data collector and a battery which are arranged in the transition shaft through leads; the upper part of the upper end shaft is provided with an external thread structure with an internal through hole, and the external thread structure is matched with the internal thread at the lower end of the transition shaft to realize the sealing of the inner cavity in the transition shaft.
5. The experimental device for measuring the deep sea seafloor hard rock drilling coring parameter of claim 1, further comprising a high-speed camera which is arranged outside the pressure-resistant box body and faces the transparent closing plate to shoot the coring process in real time.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165212A (en) * | 2021-11-26 | 2022-03-11 | 中国地质科学院勘探技术研究所 | Drilling parameter acquisition test device for small-caliber core drilling |
| CN115387749A (en) * | 2022-08-25 | 2022-11-25 | 湖南科技大学 | Miniature core test platform that creeps into under high-pressure environment |
-
2021
- 2021-03-24 CN CN202120591840.5U patent/CN214576985U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165212A (en) * | 2021-11-26 | 2022-03-11 | 中国地质科学院勘探技术研究所 | Drilling parameter acquisition test device for small-caliber core drilling |
| CN114165212B (en) * | 2021-11-26 | 2023-09-15 | 中国地质科学院勘探技术研究所 | Drilling parameter acquisition test device for small-caliber core drilling |
| CN115387749A (en) * | 2022-08-25 | 2022-11-25 | 湖南科技大学 | Miniature core test platform that creeps into under high-pressure environment |
| CN115387749B (en) * | 2022-08-25 | 2023-08-15 | 湖南科技大学 | Miniature core test platform that drills into under high pressure environment |
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