CN117825093B - Sampling device for petroleum geology detection and use method - Google Patents
Sampling device for petroleum geology detection and use methodInfo
- Publication number
- CN117825093B CN117825093B CN202311825114.5A CN202311825114A CN117825093B CN 117825093 B CN117825093 B CN 117825093B CN 202311825114 A CN202311825114 A CN 202311825114A CN 117825093 B CN117825093 B CN 117825093B
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- fixedly connected
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- plate
- main shaft
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- 238000005070 sampling Methods 0.000 title claims abstract description 101
- 239000003208 petroleum Substances 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 239000011435 rock Substances 0.000 claims abstract description 88
- 239000002689 soil Substances 0.000 claims abstract description 76
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000005192 partition Methods 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 17
- 238000003860 storage Methods 0.000 claims description 23
- 239000002002 slurry Substances 0.000 claims description 17
- 238000005553 drilling Methods 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 16
- 238000003756 stirring Methods 0.000 claims description 16
- 239000012528 membrane Substances 0.000 claims description 13
- 230000009471 action Effects 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 4
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 230000008569 process Effects 0.000 description 9
- 239000004576 sand Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 2
- 241000203069 Archaea Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Abstract
The invention belongs to the technical field of petroleum exploration, in particular to a sampling device for petroleum geology detection and a use method thereof, comprising a sampler; a baffle is fixedly connected inside the sampler; a group of sampling ports are uniformly distributed on the surface of the sampler; the motor is fixedly connected to the lower side of the partition plate; the output shaft of the motor is connected with a main shaft; one end of the main shaft extending to the upper part of the partition plate is fixedly connected with a cutter wheel; a water inlet pipe and a material taking pipe are fixedly connected inside the accommodating cavity; the earth strata rock is through the sampling mouth entering holding intracavity portion, utilize water pump and the inlet tube of wellhead to holding intracavity portion water injection, drive main shaft and cutter arbor through the motor and rotate, smash the rock soil of holding intracavity portion and form mud, the mud pump and the extracting tube of reuse wellhead upwards take out the mud of holding intracavity portion, this device need not to promote the sampler to the wellhead alright obtain the rock soil sample, easy and simple to handle, be favorable to the multiple sampling, improved the sampling efficiency of oil exploration.
Description
Technical Field
The invention belongs to the technical field of petroleum exploration, and particularly relates to a sampling device for petroleum geology detection and a use method thereof.
Background
The petroleum geology detection usually adopts a drilling method to survey petroleum geology resources, drill rods with sampling devices are driven into stratum through drilling equipment, stratum rock and soil is sampled and then lifted to the ground, so that a geological rock and soil sample is obtained, and the existence and storage size of the oil and gas resources are judged by analyzing information such as physical properties, mineral composition, archaea distribution and the like of the rock and soil sample.
However, the above-mentioned techniques often have the following drawbacks: the sampling device for petroleum geology detection in the prior art needs to lift the drill rod and the sampling device to the wellhead after sampling the rock soil, then takes out the rock soil in the drill rod and the sampling device, the process is complicated, the stratum depth of petroleum is usually several kilometers, the rock soil with different depths is required to be sampled in the drilling process, the sampling efficiency can be greatly reduced if the drill rod is frequently lifted, and the progress of petroleum exploration is influenced.
Therefore, the invention provides a sampling device for petroleum geology detection and a use method thereof.
Disclosure of Invention
In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.
The technical scheme adopted for solving the technical problems is as follows: the invention relates to a sampling device for petroleum geology detection, which comprises a drill rod; the lower end of the drill rod is connected with a sampler; the lower end of the sampler is connected with a drill bit; the sampler is of a hollow structure, and a baffle is fixedly connected inside the sampler; the upper part of the partition plate is provided with a containing cavity, and the lower part of the partition plate is provided with a power cavity; a group of sampling ports are uniformly distributed on the surface of the sampler at a position close to the upper part of the partition plate; the opening and closing of the sampling port is controlled by a switch assembly; the motor is fixedly connected to the lower side of the partition plate; the output shaft of the motor is connected with a main shaft which is rotationally connected with the partition board; one end of the main shaft extending to the upper part of the partition plate is fixedly connected with a cutter wheel; the water inlet pipe and the material taking pipe are fixedly connected in the accommodating cavity, and the upper ends of the water inlet pipe and the material taking pipe penetrate through the drill rod and extend to the wellhead;
After rock and soil are sampled by the sampling device for petroleum geology detection in the prior art, a drill rod and the sampling device are required to be lifted to a wellhead, then the rock and soil in the sampling device is taken out, the process is complicated, the stratum depth where petroleum is located is usually thousands of meters, the rock and soil with different depths are required to be sampled in the drilling process, and if the drill rod is lifted frequently, the sampling efficiency is greatly reduced, and the progress of petroleum exploration is influenced; at this time, the drilling equipment is adopted to drill the drill rod and the sampler into the target stratum, the sampling port is opened through the switch assembly, then the drill rod is controlled to rotate slowly, rock and soil in the stratum enters the accommodating cavity through the sampling port, then the sampling port is closed through the switch assembly, water is injected into the accommodating cavity through the water pump and the water inlet pipe of the wellhead, then the main shaft and the cutter wheel are driven to rotate through the motor, the rock and soil in the accommodating cavity are smashed and form slurry, and then the slurry in the accommodating cavity is pumped upwards through the mud pump and the material taking pipe of the wellhead, so that the rock and soil sample is obtained.
Preferably, the switch assembly comprises a slide plate slidingly connected inside the power cavity; an electric telescopic rod is fixedly connected between the lower side of the sliding plate and the bottom of the power cavity; a group of guide grooves are uniformly distributed on the side surface of the partition board; a group of plugging plates are uniformly distributed on the upper side of the sliding plate and are respectively and slidably connected to the inside of the guide groove; the plugging plates are the same in number and correspond to the sampling ports one by one; when the sampling port needs to be opened, the sliding plate and the plugging plate are driven to move downwards through controlling the electric telescopic rod to shrink, so that the plugging plate is retracted into the guide groove, the sampling port can be opened, when the sampling port needs to be closed, the sliding plate and the plugging plate are driven to move upwards through controlling the electric telescopic rod to stretch, and then the plugging plate closes the corresponding sampling port.
Preferably, a mounting ring is arranged at the bottom of the accommodating cavity; the inner side of the mounting ring is fixedly connected with a grid plate; a grid ring is fixedly connected between the mounting ring and the partition plate, and the cutter wheel is positioned in the grid ring; through the safety cover of collar, grid plate and net annular cutter arbor wheel, prevent that the cutter arbor wheel from striking with the great rock contact of size in the ground to lead to the problem that the cutter arbor wheel damaged, but the earth of size less, silt particle then can pass through the mesh of grid plate to receive the cutting action of cutter arbor wheel.
Preferably, the blades of the cutter wheel have an inclination angle; the middle part of the grid plate is raised upwards; when the cutter wheel rotates, suction force can be formed on the cutter wheel by utilizing the inclination angle, so that water is wrapped with soil and silt and is sucked to the cutter wheel through the grid plate, and after the mud is cut by the cutter wheel, the formed mud flows outwards through the grid ring to form a circulating effect, so that the crushing efficiency of rock and soil is improved, the fluidity of the mud is improved, and the mud is conveniently pumped upwards; because the middle part of the grid plate is raised upwards, large-size rocks falling on the grid plate can slide down to the periphery of the grid ring along the surface of the grid plate, so that the rocks are prevented from accumulating on the surface of the grid plate and affecting the passage of soil and silt.
Preferably, the interior of the accommodating cavity is rotatably connected with a driven shaft, and the driven shaft is positioned above the main shaft and is coaxially arranged with the main shaft; a group of stirring frames are uniformly distributed on the surface of the driven shaft; the middle part of the grid plate is provided with a mounting shell, and the mounting shell is fixedly connected with the mounting ring through a bracket; a speed reducing mechanism is arranged in the installation shell; the end parts of the main shaft and the driven shaft extend into the installation shell and are connected with a speed reducing mechanism, the rotating speed of the driven shaft is lower than that of the main shaft, and the speed reducing mechanism can be a planetary gear speed reducing mechanism; the main shaft drives the driven shaft through reducing mechanism and rotates together when rotating, and then the driven shaft drives a plurality of stirring frames and rotates, stirs the rock soil and the water of holding intracavity portion, and the water current of being convenient for carries earth, silt particle downwardly moving to cutter wheel department on the one hand, and on the other hand can be broken in advance to the rock soil, reduces the size of lump form rock soil, makes it pass through the mesh of grid plate smoothly, through setting up reducing mechanism, can reduce the movement velocity of driven shaft and stirring frame, prevents rock striking in the rock soil and damages the stirring frame.
Preferably, a group of supporting frames are uniformly distributed on the surface of the main shaft between the cutter wheel and the mounting shell; the surface of the supporting frame is rotationally connected with a roller, and the roller is attached to the lower side of the grid plate; the grid plate is made of an elastic grid material; in the process that the main shaft drives the support frame to rotate, the roller can roll extrusion on the lower side of the grid plate, and then the contact part of the grid plate and the roller is upwards raised, so that the grid plate continuously upwards bulges, the efficiency of downward sliding of large-size rock soil along the surface of the grid plate is improved, the rock soil is further prevented from being accumulated on the surface of the grid plate under the action of suction, and the problem of mesh blockage is solved, and the efficiency of mud and sand passing through the grid plate is improved.
Preferably, the lower side of the sliding plate is fixedly connected with a gas storage block; a group of grid covers are uniformly distributed on the outer side of the grid ring; a telescopic block is fixedly connected between the grid cover and the grid ring; the air storage block and the telescopic block are of elastic hollow structures; the air storage block is communicated with the telescopic block through a guide pipe; under the guide of the raised grid plate, large-size rocks are finally collected at the bottom of the accommodating cavity around the grid ring, after the slurry at the bottom of the accommodating cavity is pumped out, the sliding plate and the plugging plate are controlled by the electric telescopic rod to move downwards and open the sampling port, then the electric telescopic rod is controlled to further shrink, the sliding plate further moves downwards and extrudes the air storage block, the air inside the air storage block is extruded into the telescopic block through the guide pipe, the telescopic block is inflated and expanded to stretch, the grid cover is driven to move around, and the grid cover pushes the rocks at the bottom of the accommodating cavity outwards through the sampling port so as to prepare for the next sampling.
Preferably, a folding elastic membrane ring is fixedly connected between the edge of the grid cover and the grid ring; through setting up the elastic membrane circle, when the net cover moves to the sampling port, can be with the elastic membrane circle elongation deformation, utilize the elastic membrane circle to carry out the shutoff with between the edge of net cover and the net ring all the time, prevent that jumbo size ground from entering into between net cover and the net ring to cause the problem of unable automatic clearance.
The application method of the sampling device for petroleum geology detection adopts the sampling device for petroleum geology detection, and comprises the following steps:
s1: drilling a drill rod and a sampler into a target stratum by adopting drilling equipment, opening a sampling port through a switch assembly, and then controlling the drill rod to slowly rotate, so that rock and soil in the stratum enter the accommodating cavity through the sampling port;
s2: closing the sampling port through the switch assembly, and injecting water into the accommodating cavity by utilizing a water pump and a water inlet pipe of the wellhead;
S3: the main shaft and the cutter wheel are driven by the motor to rotate, rock and soil in the accommodating cavity are smashed and form slurry, and then the slurry in the accommodating cavity is pumped upwards by the mud pump and the material taking pipe at the wellhead, so that a rock and soil sample is obtained.
Preferably, the method further comprises the steps of:
s4: the sliding plate and the plugging plate are controlled to move downwards through the electric telescopic rod, the sampling port is opened, then the electric telescopic rod is controlled to further contract, the sliding plate further moves downwards and extrudes the air storage block, and air in the air storage block is extruded into the telescopic block through the guide pipe;
S5: the expansion blocks are inflated and expanded to drive the grid cover to move around, and then the grid cover pushes out rocks at the bottom of the accommodating cavity through the sampling port, so that preparation is made for next sampling.
The beneficial effects of the invention are as follows:
1. According to the sampling device for petroleum geology detection and the use method, the drilling equipment is adopted to drill the drill rod and the sampler into the target stratum, the sampling port is opened through the switch assembly, then the drill rod is controlled to rotate slowly, rock and soil in the stratum enters the accommodating cavity through the sampling port, the sampling port is closed through the switch assembly, the water pump and the water inlet pipe of the wellhead are utilized to fill water into the accommodating cavity, then the motor is utilized to drive the main shaft and the cutter wheel to rotate, the rock and soil in the accommodating cavity are smashed and form slurry, and the slurry in the accommodating cavity is pumped upwards through the mud pump and the material taking pipe of the wellhead, so that the rock and soil sample is obtained.
2. According to the sampling device for petroleum geology detection and the use method, the problem that the cutter wheel is damaged due to the fact that the cutter wheel is in contact with and impacted with larger-size rocks in rock and soil is prevented by the mounting ring, the grid plate and the protective cover of the grid ring-shaped cutter wheel, and the smaller-size soil and mud sand can pass through meshes of the grid plate and are subjected to cutting action of the cutter wheel.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the sampler according to the present invention;
FIG. 3 is a schematic view of the structure of the baffle plate and the stirring frame in the present invention;
FIG. 4 is a cross-sectional view of a sampler in the present invention;
FIG. 5 is an enlarged view of a portion of FIG. 4 at A;
FIG. 6 is an enlarged view of a portion of FIG. 5 at B;
Fig. 7 is a schematic flow chart of the method of the invention.
In the figure: drill rod 1, sampler 2, drill bit 3, baffle 4, holding chamber 5, power chamber 6, sampling port 7, motor 8, main shaft 9, cutter wheel 10, inlet tube 11, extracting tube 12, slide 13, electric telescopic rod 14, guide slot 15, shutoff plate 16, collar 17, grid plate 18, grid ring 19, driven shaft 20, stirring rack 21, installation shell 22, support frame 23, gyro wheel 24, air storage piece 25, grid cover 26, telescopic piece 27, pipe 28, elastic membrane ring 29.
Detailed Description
The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Embodiment one: as shown in fig. 1 to 3, a sampling device for petroleum geology detection according to an embodiment of the present invention includes a drill pipe 1; the lower end of the drill rod 1 is connected with a sampler 2; the lower end of the sampler 2 is connected with a drill bit 3; the sampler 2 is of a hollow structure, and a partition board 4 is fixedly connected inside the sampler 2; a containing cavity 5 is arranged above the partition board 4, and a power cavity 6 is arranged below the partition board 4; a group of sampling ports 7 are uniformly distributed on the surface of the sampler 2 at a position close to the upper part of the partition plate 4; the opening and closing of the sampling port 7 is controlled by a switch assembly; the motor 8 is fixedly connected to the lower side of the partition board 4; the output shaft of the motor 8 is connected with a main shaft 9, and the main shaft 9 is rotationally connected with the partition plate 4; one end of the main shaft 9 extending to the upper part of the partition plate 4 is fixedly connected with a cutter wheel 10; the inside of the accommodating cavity 5 is fixedly connected with a water inlet pipe 11 and a material taking pipe 12, and the upper ends of the water inlet pipe 11 and the material taking pipe 12 penetrate through the inside of the drill rod 1 and extend to a wellhead;
After the sampling device for petroleum geology detection in the prior art samples the rock and soil, the drill rod 1 and the sampling device are required to be lifted to a wellhead, then the rock and soil in the sampling device is taken out, the process is complicated, the stratum depth where petroleum is located is usually thousands of meters, the rock and soil with different depths is required to be sampled in the drilling process, and if the drill rod 1 is lifted frequently, the sampling efficiency is greatly reduced, and the progress of petroleum exploration is influenced; at this time, the drilling equipment is adopted to drill the drill rod 1 and the sampler 2 into a target stratum, the sampling port 7 is opened through the switch assembly, then the drill rod 1 is controlled to rotate slowly, then rock and soil in the stratum enters the accommodating cavity 5 through the sampling port 7, further the sampling port 7 is closed through the switch assembly, water is injected into the accommodating cavity 5 through the water pump and the water inlet pipe 11 of the wellhead, then the main shaft 9 and the cutter wheel 10 are driven to rotate through the motor 8, the rock and soil in the accommodating cavity 5 are smashed to form slurry, and then the slurry in the accommodating cavity 5 is pumped upwards through the mud pump and the material taking pipe 12 of the wellhead, so that the rock and soil sample is obtained.
The switch assembly comprises a sliding plate 13 which is connected inside the power cavity 6 in a sliding way; an electric telescopic rod 14 is fixedly connected between the lower side of the sliding plate 13 and the bottom of the power cavity 6; a group of guide grooves 15 are uniformly distributed on the side surface of the partition board 4; a group of plugging plates 16 are uniformly distributed on the upper side of the sliding plate 13, and the plugging plates 16 are respectively and slidably connected in the guide grooves 15; the number of the plugging plates 16 is the same as that of the sampling ports 7 and corresponds to one; when the sampling port 7 needs to be opened, the electric telescopic rod 14 is controlled to shrink, the sliding plate 13 and the plugging plate 16 are driven to move downwards, the plugging plate 16 is retracted into the guide groove 15, the sampling port 7 can be opened, when the sampling port 7 needs to be closed, the electric telescopic rod 14 is controlled to stretch, the sliding plate 13 and the plugging plate 16 are driven to move upwards, and then the plugging plate 16 is used for plugging and closing the corresponding sampling port 7.
The bottom of the accommodating cavity 5 is provided with a mounting ring 17; a grid plate 18 is fixedly connected to the inner side of the mounting ring 17; a grid ring 19 is fixedly connected between the mounting ring 17 and the partition plate 4, and the cutter wheel 10 is positioned in the grid ring 19; the protective cover of the cutter wheel 10 is formed by the mounting ring 17, the grid plate 18 and the grid ring 19, so that the cutter wheel 10 is prevented from being contacted and impacted with larger-size rocks in rock soil and the cutter wheel 10 is damaged, and smaller-size soil and silt can pass through meshes of the grid plate 18 and are subjected to cutting action of the cutter wheel 10.
The blades of the cutter wheel 10 have an inclination angle; the middle part of the grid plate 18 is raised upwards; when the cutter wheel 10 rotates, suction force can be formed on the cutter wheel by utilizing the inclination angle, so that water is wrapped with soil and silt and is sucked into the cutter wheel 10 through the grid plate 18, and after the cutter wheel 10 cuts, formed mud flows out through the grid ring 19, so that a circulation effect is formed, the crushing efficiency of rock and soil is improved, the fluidity of the mud is improved, and the mud is conveniently pumped upwards; since the middle of the grid plate 18 bulges upwards, large-size rocks falling on the grid plate 18 can slide down along the surface of the grid plate 18 to the periphery of the grid ring 19, so that the rocks are prevented from accumulating on the surface of the grid plate 18 and affecting the passage of soil and silt.
The inside of the accommodating cavity 5 is rotatably connected with a driven shaft 20, and the driven shaft 20 is positioned above the main shaft 9 and is coaxially arranged with the main shaft 9; a group of stirring frames 21 are uniformly distributed on the surface of the driven shaft 20; the middle part of the grid plate 18 is provided with a mounting shell 22, and the mounting shell 22 is fixedly connected with the mounting ring 17 through a bracket; a speed reducing mechanism is arranged inside the mounting shell 22; the ends of the main shaft 9 and the driven shaft 20 extend into the installation shell 22 and are connected with a speed reducing mechanism, the rotating speed of the driven shaft 20 is lower than that of the main shaft 9, and the speed reducing mechanism can be a planetary gear speed reducing mechanism; the main shaft 9 drives the driven shaft 20 to rotate together through the speed reducing mechanism when rotating, and then the driven shaft 20 drives a plurality of stirring frames 21 to rotate, stirs the rock soil and water in the holding cavity 5, on the one hand, the water flow is convenient to carry soil and silt sand downwards to the cutter wheel 10, on the other hand, the rock soil can be pre-crushed, the size of the agglomerate rock soil is reduced, the agglomerate rock soil smoothly passes through the meshes of the grid plate 18, the movement speed of the driven shaft 20 and the stirring frames 21 can be reduced through the speed reducing mechanism, and the rock in the rock soil is prevented from being impacted and damaging the stirring frames 21.
Embodiment two: as shown in fig. 4 to 6, a comparative example one, in which another embodiment of the present invention is: a group of supporting frames 23 are uniformly distributed on the surface of the main shaft 9 between the cutter wheel 10 and the mounting shell 22; the surface of the supporting frame 23 is rotatably connected with a roller 24, and the roller 24 is attached to the lower side of the grid plate 18; the grid plate 18 is made of an elastic grid material; in the process that the main shaft 9 drives the supporting frame 23 to rotate, the roller 24 can roll on the lower side of the grid plate 18, and then the contact part of the grid plate 18 and the roller 24 is upwards raised, so that the grid plate 18 continuously upwards bulges, the efficiency of downward sliding of large-size rock soil along the surface of the grid plate 18 is improved, the problem that the rock soil is accumulated on the surface of the grid plate 18 under the action of suction force and meshes are blocked is further prevented, and the efficiency of mud and sand passing through the grid plate 18 is improved.
The lower side of the sliding plate 13 is fixedly connected with a gas storage block 25; a group of grid covers 26 are uniformly distributed on the outer side of the grid ring 19; a telescopic block 27 is fixedly connected between the grid cover 26 and the grid ring 19; the air storage block 25 and the telescopic block 27 are of elastic hollow structures; the air storage block 25 and the telescopic block 27 are communicated with each other through a conduit 28; under the guidance of the raised grid plates 18, large-size rocks are finally collected at the bottom of the accommodating cavity 5 around the grid ring 19, after the slurry in the accommodating cavity 5 is pumped out, the sliding plate 13 and the plugging plate 16 are controlled by the electric telescopic rod 14 to move downwards and open the sampling port 7, then the electric telescopic rod 14 is controlled to further shrink, the sliding plate 13 is further moved downwards and extrude the air storage block 25, air in the air storage block 25 is extruded into the telescopic block 27 through the guide pipe 28, the telescopic block 27 is inflated and expanded to stretch, the grid cover 26 is driven to move around, and then the grid cover 26 pushes the rocks at the bottom of the accommodating cavity 5 outwards through the sampling port 7 so as to prepare for the next sampling.
A folding elastic membrane ring 29 is fixedly connected between the edge of the grid cover 26 and the grid ring 19; through setting up elastic membrane circle 29, when net cover 26 moves to sampling port 7, can be with elastic membrane circle 29 extension deformation, utilize elastic membrane circle 29 to carry out the shutoff between the edge of net cover 26 and the net ring 19 all the time, prevent that the rock and soil of jumbo size from entering into between net cover 26 and the net ring 19 to cause the problem of unable automatic clearance.
As shown in fig. 7, a method for using the sampling device for petroleum geology detection includes the steps of:
S1: drilling a drill rod 1 and a sampler 2 into a target stratum by adopting drilling equipment, opening a sampling port 7 through a switch assembly, and then controlling the drill rod 1 to slowly rotate, so that rock and soil in the stratum enters the accommodating cavity 5 through the sampling port 7;
s2: the sampling port 7 is closed through the switch assembly, and water is injected into the accommodating cavity 5 by utilizing a water pump and a water inlet pipe 11 of the wellhead;
S3: the main shaft 9 and the cutter wheel 10 are driven to rotate by the motor 8, rock and soil in the accommodating cavity 5 are smashed and form slurry, and then the slurry in the accommodating cavity 5 is pumped upwards by a mud pump and a material taking pipe 12 at a wellhead, so that a rock and soil sample is obtained;
S4: the sliding plate 13 and the plugging plate 16 are controlled to move downwards through the electric telescopic rod 14, the sampling port 7 is opened, then the electric telescopic rod 14 is controlled to further shrink, the sliding plate 13 further moves downwards and presses the air storage block 25, and air in the air storage block 25 is pressed into the telescopic block 27 through the guide pipe 28;
S5: the expansion blocks 27 are inflated and expanded to drive the grid cover 26 to move around, and then the grid cover 26 pushes out the rock at the bottom of the accommodating cavity 5 through the sampling port 7 to prepare for the next sampling.
Working principle: drilling a drill rod 1 and a sampler 2 into a target stratum by adopting drilling equipment, opening a sampling port 7 through a switch assembly, then controlling the drill rod 1 to rotate slowly, enabling rock and soil in the stratum to enter the accommodating cavity 5 through the sampling port 7, closing the sampling port 7 through the switch assembly, injecting water into the accommodating cavity 5 by utilizing a water pump and a water inlet pipe 11 of a wellhead, driving a main shaft 9 and a cutter wheel 10 to rotate by utilizing a motor 8, breaking the rock and soil in the accommodating cavity 5 to form slurry, and pumping the slurry in the accommodating cavity 5 upwards by utilizing a mud pump and a material taking pipe 12 of the wellhead to obtain a rock and soil sample; when the sampling port 7 needs to be opened, the electric telescopic rod 14 is controlled to shrink to drive the sliding plate 13 and the plugging plate 16 to move downwards, so that the plugging plate 16 is retracted into the guide groove 15, the sampling port 7 can be opened, and when the sampling port 7 needs to be closed, the electric telescopic rod 14 is controlled to stretch to drive the sliding plate 13 and the plugging plate 16 to move upwards, and then the plugging plate 16 plugs and closes the corresponding sampling port 7;
The protective cover of the cutter wheel 10 is formed by the mounting ring 17, the grid plate 18 and the grid ring 19, so that the cutter wheel 10 is prevented from being contacted and impacted with larger-size rocks in rock and soil, and the cutter wheel 10 is damaged, and smaller-size soil and silt can pass through meshes of the grid plate 18 and are subjected to the cutting action of the cutter wheel 10; when the cutter wheel 10 rotates, suction force can be formed on the cutter wheel by utilizing the inclination angle, so that water is wrapped with soil and silt and is sucked into the cutter wheel 10 through the grid plate 18, and after the cutter wheel 10 cuts, formed mud flows out through the grid ring 19, so that a circulation effect is formed, the crushing efficiency of rock and soil is improved, the fluidity of the mud is improved, and the mud is conveniently pumped upwards; because the middle part of the grid plate 18 is raised upwards, large-size rocks falling on the grid plate 18 can slide down to the periphery of the grid ring 19 along the surface of the grid plate 18, so that the rocks are prevented from accumulating on the surface of the grid plate 18 and affecting the passage of soil and silt; the main shaft 9 drives the driven shaft 20 to rotate together through the speed reducing mechanism when rotating, and then the driven shaft 20 drives the plurality of stirring frames 21 to rotate, so that the rock soil and water in the accommodating cavity 5 are stirred, on one hand, the water flow is convenient to carry soil and silt to move downwards to the cutter wheel 10, on the other hand, the rock soil can be pre-crushed, the size of the agglomerate rock soil is reduced, the agglomerate rock soil smoothly passes through the meshes of the grid plate 18, and the speed of the driven shaft 20 and the stirring frames 21 can be reduced through the speed reducing mechanism, so that the rock in the rock soil is prevented from being impacted to damage the stirring frames 21;
In the process that the main shaft 9 drives the supporting frame 23 to rotate, the roller 24 can roll on the lower side of the grid plate 18, and then the contact part of the grid plate 18 and the roller 24 is upwards raised, so that the grid plate 18 is continuously upwards raised, the downward sliding efficiency of large-size rock soil along the surface of the grid plate 18 is improved, the problem that the rock soil is accumulated on the surface of the grid plate 18 under the action of suction force and meshes are blocked is further prevented, and the efficiency of mud and sand passing through the grid plate 18 is improved; under the guidance of the raised grid plates 18, large-size rocks are finally collected at the bottom of the accommodating cavity 5 around the grid ring 19, after the slurry in the accommodating cavity 5 is pumped out, the sliding plate 13 and the plugging plate 16 are controlled by the electric telescopic rod 14 to move downwards and open the sampling port 7, then the electric telescopic rod 14 is controlled to further shrink, the sliding plate 13 is further moved downwards and extrudes the air storage block 25, air in the air storage block 25 is extruded into the telescopic block 27 through the guide pipe 28, the telescopic block 27 is inflated and expanded to stretch, the grid cover 26 is driven to move around, and then the grid cover 26 pushes the rocks at the bottom of the accommodating cavity 5 outwards through the sampling port 7 so as to prepare for the next sampling; through setting up elastic membrane circle 29, when net cover 26 moves to sampling port 7, can be with elastic membrane circle 29 extension deformation, utilize elastic membrane circle 29 to carry out the shutoff between the edge of net cover 26 and the net ring 19 all the time, prevent that the rock and soil of jumbo size from entering into between net cover 26 and the net ring 19 to cause the problem of unable automatic clearance.
The front, rear, left, right, up and down are all based on fig. 1 in the drawings of the specification, the face of the device facing the observer is defined as front, the left side of the observer is defined as left, and so on, according to the viewing angle of the person.
In the description of the present invention, it should be understood that the terms "center," "longitudinal," "lateral," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present invention.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A sampling device for petroleum geology detects, its characterized in that: comprises a drill rod (1); the lower end of the drill rod (1) is connected with a sampler (2); the lower end of the sampler (2) is fixedly connected with a drill bit (3); the sampler (2) is of a hollow structure, and a partition board (4) is fixedly connected inside the sampler (2); a containing cavity (5) is arranged above the partition board (4), and a power cavity (6) is arranged below the partition board (4); a group of sampling ports (7) are uniformly distributed on the surface of the sampler (2) at a position close to the upper part of the partition plate (4); the opening and closing of the sampling port (7) is controlled by a switch assembly; a motor (8) is fixedly connected to the lower side of the partition board (4); the output shaft of the motor (8) is connected with a main shaft (9), and the main shaft (9) is rotationally connected with the partition board (4); one end of the main shaft (9) extending to the upper part of the partition plate (4) is fixedly connected with a cutter wheel (10); the inside of the accommodating cavity (5) is fixedly connected with a water inlet pipe (11) and a material taking pipe (12), and the upper ends of the water inlet pipe (11) and the material taking pipe (12) penetrate through the inside of the drill rod (1) and extend to a wellhead;
the switch assembly comprises a sliding plate (13) which is connected inside the power cavity (6) in a sliding way; an electric telescopic rod (14) is fixedly connected between the lower side of the sliding plate (13) and the bottom of the power cavity (6); a group of guide grooves (15) are uniformly distributed on the side surface of the partition board (4); a group of plugging plates (16) are uniformly distributed on the upper side of the sliding plate (13), and the plugging plates (16) are respectively and slidably connected to the inside of the guide groove (15); the number of the plugging plates (16) is the same as that of the sampling ports (7) and corresponds to one by one;
a mounting ring (17) is arranged at the bottom of the accommodating cavity (5); a grid plate (18) is fixedly connected to the inner side of the mounting ring (17); a grid ring (19) is fixedly connected between the mounting ring (17) and the partition plate (4), and the cutter wheel (10) is positioned in the grid ring (19); the protective cover of the cutter wheel (10) is formed by the mounting ring (17), the grid plate (18) and the grid ring (19), so that the cutter wheel (10) is prevented from being contacted and impacted with larger-size rocks in rock soil, the cutter wheel (10) is prevented from being damaged, and smaller-size soil and silt can pass through meshes of the grid plate (18) and are subjected to cutting action of the cutter wheel (10);
the inside of the accommodating cavity (5) is rotationally connected with a driven shaft (20), and the driven shaft (20) is positioned above the main shaft (9) and is coaxially arranged with the main shaft; a group of stirring frames (21) are uniformly distributed on the surface of the driven shaft (20); the middle part of the grid plate (18) is provided with a mounting shell (22), and the mounting shell (22) is fixedly connected with the mounting ring (17) through a bracket; a speed reducing mechanism is arranged in the mounting shell (22); the ends of the main shaft (9) and the driven shaft (20) extend into the installation shell (22) and are connected with the speed reducing mechanism, and the rotating speed of the driven shaft (20) is lower than that of the main shaft (9).
2. The sampling device for petroleum geology detection of claim 1, wherein: the blades of the cutter wheel (10) have an inclination angle; the middle part of the grid plate (18) is raised upwards.
3. The sampling device for petroleum geology detection of claim 1, wherein: a group of supporting frames (23) are uniformly distributed on the surface of the main shaft (9) between the cutter wheel (10) and the mounting shell (22); the surface of the supporting frame (23) is rotationally connected with a roller (24), and the roller (24) is attached to the lower side of the grid plate (18); the grid plate (18) is made of an elastic grid material.
4. A sampling device for petroleum geology detection as defined in claim 3, wherein: the lower side of the sliding plate (13) is fixedly connected with a gas storage block (25); a group of grid covers (26) are uniformly distributed on the outer side of the grid ring (19); a telescopic block (27) is fixedly connected between the grid cover (26) and the grid ring (19); the air storage block (25) and the telescopic block (27) are of elastic hollow structures; the air storage block (25) and the telescopic block (27) are mutually communicated through a conduit (28).
5. The sampling device for petroleum geology detection as defined in claim 4, wherein: a folding elastic membrane ring (29) is fixedly connected between the edge of the grid cover (26) and the grid ring (19).
6. A method of using the petroleum geology detection sampling device of claim 5, characterized in that: the method comprises the following steps:
S1: drilling a drill rod (1) and a sampler (2) into a target stratum by adopting drilling equipment, opening a sampling port (7) through a switch assembly, and then controlling the drill rod (1) to slowly rotate, so that rock and soil in the stratum enter the accommodating cavity (5) through the sampling port (7);
s2: the sampling port (7) is closed through the switch assembly, and water is injected into the accommodating cavity (5) by utilizing a water pump and a water inlet pipe (11) of the wellhead;
s3: the main shaft (9) and the cutter wheel (10) are driven to rotate through the motor (8), rock and soil in the accommodating cavity (5) are smashed and form slurry, and then the slurry in the accommodating cavity (5) is pumped out upwards by using the mud pump and the material taking pipe (12) at the wellhead, so that a rock and soil sample is obtained.
7. The method for using the sampling device for petroleum geology detection of claim 6, wherein: the method further comprises the steps of:
S4: the sliding plate (13) and the plugging plate (16) are controlled to move downwards through the electric telescopic rod (14) and the sampling port (7) is opened, then the electric telescopic rod (14) is controlled to further shrink, the sliding plate (13) further moves downwards and the air storage block (25) is extruded, and air in the air storage block (25) is extruded into the telescopic block (27) through the guide pipe (28);
s5: the expansion block (27) is inflated and expanded to drive the grid cover (26) to move around, so that the grid cover (26) pushes out rocks at the bottom of the accommodating cavity (5) through the sampling port (7) to prepare for the next sampling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311825114.5A CN117825093B (en) | 2023-12-27 | Sampling device for petroleum geology detection and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311825114.5A CN117825093B (en) | 2023-12-27 | Sampling device for petroleum geology detection and use method |
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| CN117825093B true CN117825093B (en) | 2024-07-02 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441086A (en) * | 2019-08-08 | 2019-11-12 | 河北工程大学 | A kind of selenium-rich soil detection device and its application method |
| CN116291424A (en) * | 2023-05-17 | 2023-06-23 | 烟台大学 | Drilling sampling device for geotechnical engineering investigation |
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441086A (en) * | 2019-08-08 | 2019-11-12 | 河北工程大学 | A kind of selenium-rich soil detection device and its application method |
| CN116291424A (en) * | 2023-05-17 | 2023-06-23 | 烟台大学 | Drilling sampling device for geotechnical engineering investigation |
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