CN119164860B - A core porosity testing device and testing method - Google Patents
A core porosity testing device and testing method Download PDFInfo
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- CN119164860B CN119164860B CN202411667547.7A CN202411667547A CN119164860B CN 119164860 B CN119164860 B CN 119164860B CN 202411667547 A CN202411667547 A CN 202411667547A CN 119164860 B CN119164860 B CN 119164860B
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- 238000012360 testing method Methods 0.000 title claims abstract description 84
- 238000001514 detection method Methods 0.000 claims abstract description 53
- 239000011553 magnetic fluid Substances 0.000 claims abstract description 25
- 239000002245 particle Substances 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims abstract description 13
- 239000011159 matrix material Substances 0.000 claims abstract description 9
- 239000011148 porous material Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 28
- 238000009434 installation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 101100520231 Caenorhabditis elegans plc-3 gene Proteins 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000007796 conventional method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
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Abstract
The invention discloses a core porosity testing device and a testing method, which relate to the technical field of rock porosity testing devices and comprise a high-temperature high-pressure regulator, wherein magnetic fluid particles are injected into a core sample to be tested under the cooperation of a core detection auxiliary component and a porosity dynamic detection component, a matrix permanent magnet group is utilized to provide a basic magnetic field, a solenoid control structure is utilized to conduct fine adjustment, the magnetic fluid particles are enabled to form controllability and flexibility distribution, then a neutron detector is used for evaluating the porosity by detecting neutron signals in the core, the performance and reliability of the core porosity testing device in the actual use process are improved, the accuracy of a testing result is ensured, the core porosity testing efficiency is improved, an X-ray scanning end capable of forming multi-direction adjustment is enabled to move along a guide rail track, the core sample to be tested can be subjected to X-ray scanning from different angles, and the accuracy of rock porosity testing is effectively improved.
Description
Technical Field
The invention relates to the technical field of rock porosity testing devices, in particular to a rock core porosity testing device and a rock core porosity testing method.
Background
Core porosity refers to the ratio of the volume of space of pores in rock to the volume of the rock, typically expressed in percent. If the porosity is greater, this means that the more void space is present in the core, the more hydrocarbon resources may be stored. And meanwhile, the rock porosity has a great influence on the stability of underground rock. Therefore, during the related operation, the core needs to be sampled and analyzed to determine the porosity of the core, so as to evaluate the stability of the underground rock.
However, in the prior art, when the porosity of the rock core is tested, the conventional method mostly adopts the Boyle's law dual-chamber method to measure the porosity of the rock, namely, the porosity of the rock is judged after the gas injection amount from the standard chamber to the sample chamber is observed in the whole measurement, but when the Boyle's law dual-chamber method is used for testing, the formed gas is difficult to completely fill the micro-pores which are not communicated in the compact rock, so that the accuracy can not be ensured when the porosity of the rock core is detected, the time is longer, and the whole detection efficiency is lower, so that a new and efficient rock core porosity testing device and a new and testing method are needed to be designed and proposed.
Disclosure of Invention
The invention aims to provide a device and a method for testing the porosity of a rock core, which aim to solve the problems that in the prior art, when the porosity of the rock core is tested, the conventional method mostly adopts a Boyle's law dual-chamber method to test the porosity of the rock, namely, the whole porosity is judged after the balance is achieved by observing the injection amount of gas in a standard chamber to a sample chamber in the test, but when the Boyle's law dual-chamber method is used for testing, the formed gas is difficult to completely fill micro-pores which are not communicated in compact rock, so that the accuracy can not be ensured when the porosity of the rock core is detected, the time is longer, and the whole detection efficiency is lower.
In order to achieve the purpose, the invention provides a core porosity testing device, which comprises:
The high-temperature high-pressure regulator is arranged at the top of the test box body and is used for forming a dynamic high-temperature high-pressure environment to simulate the influence of the rock core under the stratum condition;
the porosity dynamic detection component is arranged at the top end of the inside of the test box body and is used for forming multidirectional adjustment on the periphery of the core sample to be tested, so that the holes formed in the core sample to be tested by the injected magnetic fluid particles are marked, and the fed back hole data are detected and analyzed;
The rock core detection auxiliary assembly is arranged on the surface of the side frame table top and used for injecting magnetic fluid particles into a rock core sample to be tested, and the magnetic fluid particles are guided to flow in the rock core sample to be tested under the control of a formed magnetic field, and the rock core is tested and detected under the condition that physical and mechanical forces are applied to the outer periphery of the rock core sample in a staged manner.
Preferably, the dynamic porosity detection assembly comprises:
the automatic testing device comprises a transverse line rail, a sliding position adjusting block, a hinge vertical guide rail and a sliding angle adjusting structure, wherein the transverse line rail is fixedly connected to the inner top side of a testing box body, the sliding position adjusting block is located at the bottom end of the transverse line rail and is in sliding connection, the hinge vertical guide rail is driven to be adjusted through a structure borne by the hinge vertical guide rail, the sliding angle adjusting structure is located at the side of the hinge vertical guide rail and is in sliding connection, a main frame is arranged at the bottom of the sliding angle adjusting structure in a connecting mode, and the sliding angle adjusting structure consists of a sliding saddle, a driving angle motor and two bevel gears and is used for driving the main frame and the structure borne by the main frame to be adjusted.
Preferably, the bottom of the main frame is hinged with three electric driving arms, the top ends of the side edges of the three electric driving arms are hinged with first rotating joints, the bottom of each first rotating joint is hinged with an electric telescopic rod, the first rotating joints are used for enabling the bottom of the main frame, the top of the side edges of the three electric driving arms and the top of each electric telescopic rod to be connected, the bottom ends of the side edges of the three electric driving arms are hinged with second rotating joints, and the second rotating joints are used for enabling the bottom of the side edges of the three electric driving arms to be connected with the bottom of each electric telescopic rod.
Preferably, the side connection of second revolute joint sets up the support, the side installation of support sets up electronic rotatory ball joint, the side connection of electronic rotatory ball joint sets up the rotation angle gyroscope, the side fastening of rotation angle gyroscope is connected with semi-ring tooth's socket guide rail frame, the inside sliding connection of side of semi-ring tooth's socket guide rail frame has the X ray scanning end.
Preferably, the core detection auxiliary assembly comprises:
The device comprises a main rotating motor, a rotating table surface disc, a side connecting and fixing frame, a first hydraulic cylinder and a second hydraulic cylinder, wherein the main rotating motor is arranged at the bottom of the central end of the rotating table surface disc, the side connecting and fixing frame drives the erected first hydraulic cylinder to be fixedly connected to the side surface of the bottom base of the rotating table surface disc, the second hydraulic cylinder is arranged on the surface of the top wall of the bottom base of the rotating table surface disc, matrix type permanent magnet sets are arranged on the sides of the first hydraulic cylinder and the second hydraulic cylinder, detection pressure pieces are arranged at the output ends of the first hydraulic cylinder and the second hydraulic cylinder, a vibrating cylinder is fixedly connected to the side surface of the top of the bottom base of the rotating table surface disc, an electromagnetic coil control structure is sleeved outside the side end of the vibrating cylinder, and a flexible vibrating guide rod is arranged at the output end of the vibrating cylinder.
Preferably, the bottom base surface of the rotating table surface disc is fixedly connected with a support frame, a transverse adjusting guide rail frame is arranged on the side of the top of the support frame, the transverse adjusting guide rail frame is used for driving an external grabbing mechanical arm to carry out sliding adjustment, the other side of the top of the support frame is fixedly connected with a driving wire rail, the driving wire rail is internally and slidably connected with a position sliding vertical guide rail, and the position sliding vertical guide rail is internally and slidably connected with a sliding seat.
Preferably, the bottom connection of sliding seat is provided with the positioning seat, the side end installation of positioning seat sets up neutron detector, the bottom base top fastening of moving table face dish has high-pressure pump injector, the bottom installation of high-pressure pump injector sets up the injection core end.
Preferably, the side installation of side frame mesa sets up the direction conveyer belt structure, the bottom of side frame mesa is supported fixedly through the support pedestal, the bottom of side frame mesa is installed respectively and is set up PLC controller and detection box controller.
Preferably, the pneumatic sealing structures are arranged on the left side and the right side of the test box body respectively, and are used for performing the porosity test of the core to seal the test box body.
A testing method of a core porosity testing device comprises the following steps:
S1, firstly, a pneumatic sealing structure is in an open state, then a core sample to be tested is placed on a rotary table surface disc by using an external grabbing mechanical arm, and the pneumatic sealing structure is closed;
S2, operating the core detection auxiliary assembly, facilitating magnetic fluid particle injection of a core sample to be tested, guiding magnetic fluid particles to flow in the core sample to be tested through magnetic field control formed by the core detection auxiliary assembly, and performing test detection on the core under the condition that physical mechanical force is applied to the outer periphery of the core sample to be tested in a staged manner;
S3, marking the pores formed by the injected magnetic fluid particles in the core sample to be tested under the cooperation of a porosity dynamic detection assembly, and detecting and analyzing the pore data fed back by the analysis;
s4, starting a high-temperature high-pressure regulator in the testing process, recording and analyzing formed testing data by using a detection box body controller and a PLC controller, and actively regulating the temperature and pressure during testing so as to improve the testing accuracy.
Compared with the prior art, the invention has the beneficial effects that:
1. In the invention, after a core sample to be tested is placed on a rotary table disc under the cooperation of a core detection auxiliary assembly, a main rotary motor is started, the rotary table disc and the core sample to be tested are driven by the main rotary motor to rotate at a constant speed, then magnetic fluid particles are injected into the core sample to be tested by a high-pressure pump injector and an injection core end, and under the centrifugal cooperation of the constant speed rotation, the magnetic fluid particles are ensured to be uniformly distributed in the pores of the core sample to be tested, then a first hydraulic cylinder and a second hydraulic cylinder form an external magnetic field through a matrix permanent magnet group, and a connected electromagnetic coil control structure is sleeved outside the side end of a vibrating cylinder in a matched manner, so that a basic magnetic field can be provided by the matrix permanent magnet group, and fine adjustment is carried out through the electromagnetic coil control structure to realize more accurate magnetic field control, thereby forming coordination control, the method realizes the overall control of the magnetic field, is convenient for the formed external magnetic field to guide the magnetic fluid particles to form controllable and flexible distribution in the core sample to be tested, ensures the distribution condition of the magnetic fluid particles in the core to actively adjust the magnetic field intensity according to the requirement, then the vibrating cylinder applies vibration on the outer peripheral side of the core sample to be tested through the flexible vibrating guide rod, simulates the vibration effect in the underground environment, simultaneously enables the first hydraulic cylinder and the second hydraulic cylinder to apply physical mechanical force on the outer peripheral side of the core through the detection pressure piece, simulates the stress change in the underground environment, then continuously ensures the position adjustment of the core sample to be tested in the testing process according to the rotatability of the core driven by the main rotating motor through the rotating table disc, then enables the driving line rail to drive the sliding seat to slide through the position sliding vertical guide rail, the position of the neutron detector is adjusted, the detection accuracy is ensured, the neutron detector is enabled to evaluate the porosity by detecting neutron signals in the core, the performance and the reliability of the core porosity testing device in the actual use process are improved, the accuracy and the reliability of a testing result are ensured, and the testing efficiency is improved.
2. According to the invention, under the control instruction of the PLC, the sliding position adjusting block drives the hinge vertical guide rail and the bearing structure to adjust the position in the horizontal direction through the transverse linear rail under the control instruction of the PLC, the sliding angle adjusting structure drives the main frame to adjust the position in the vertical direction through the hinge vertical guide rail, then the driving angle motor is started, the main frame is driven by two bevel gears to adjust the angle, the main frame can conveniently drive the bearing related structure of the main frame to adjust, then three electric driving arms are started, the electric telescopic rod is driven by the first rotary joint and the second rotary joint to adjust in a telescopic way, and meanwhile, under the coordination of the electric telescopic rod, the electric rotary spherical joint, the rotating angle gyroscope and the related structure are driven to adjust in a multi-direction, the X-ray scanning end can be close to or far away from a core sample to be tested, then the electric rotary spherical joint is started to adjust in a rotary mode, the rotating angle gyroscope is driven by the rotating angle gyroscope to measure the rotating angle, the X-ray scanning end can scan from different angles, data are fed back to the PLC, the main frame can drive the relative structure to adjust the relative structure, the relative structure is driven by the tooth groove scanning end to the X-ray scanning end, the data is driven by the tooth groove scanning end to carry out data transmission, the hole degree of the core sample is tested, the hole is measured, and the data is measured, the hole degree of the core sample is measured, the hole is measured in a hole is measured, and the hole is measured in a hole is measured, and the hole is measured.
Drawings
FIG. 1 is a schematic diagram of a front view of a core porosity testing device according to the present invention;
FIG. 2 is a schematic side view of a core porosity testing device according to the present invention;
FIG. 3 is a schematic diagram of the installation position structure of the auxiliary core detection component and the dynamic porosity detection component in the porosity testing device for a core according to the present invention;
FIG. 4 is a schematic view of a part of the dynamic porosity detection assembly in the core porosity testing device according to the present invention;
FIG. 5 is a schematic structural diagram of a dynamic porosity detection assembly in a core porosity testing device according to the present invention;
FIG. 6 is a schematic structural diagram of an auxiliary core detection assembly in a core porosity testing device according to the present invention;
FIG. 7 is a schematic view of another angle structure of the auxiliary core detection assembly in the core porosity testing device according to the present invention;
FIG. 8 is an enlarged schematic view of the structure of the core at B in FIG. 7 in a core porosity testing device according to the present invention;
fig. 9 is an enlarged schematic view of the structure at a in fig. 4 in the core porosity testing device according to the present invention.
In the figure, a side frame table top, a guide conveying belt structure, a PLC (programmable logic controller), a 4-detection box controller, a 5-detection box, a 6-high-temperature high-pressure regulator, a 7-pneumatic sealing structure, an 8-core detection auxiliary assembly, a 81-main rotating motor, a 82-rotating table top disk, a 83-side connecting fixed frame, a 84, a first hydraulic cylinder, a 85-vibrating cylinder, a 86-electromagnetic coil control structure, a 87-flexible vibrating guide rod, a 88-second hydraulic cylinder, a 89, a supporting frame, 890, a transverse adjusting guide rail frame, 891, a driving wire rail, 892, a position sliding vertical guide rail, 893, a sliding seat, 894, a positioning seat, 895, a neutron detector, 896, a high-pressure pump injector, 897, an injection core end, 898, a detection pressure piece, 899, a matrix type permanent magnet set, a 9-porosity dynamic detection assembly, a 91, a transverse wire rail, 92, a sliding position adjusting block, 93, a hinge vertical guide rail, 94, a sliding angle adjusting structure, 95, a main frame, 96, an electric rod, a 97, a three-position sliding guide rail, a 98, a power-saving rotary bracket, a driving arm, a rotary joint 992, a rotary spherical joint 992, a rotary X-shaped guide rail, a rotary joint 992, a rotary X-shaped frame, a rotary joint 992, a rotary spherical joint, a rotary X-shaped frame, a rotary joint 992.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the present invention, referring to fig. 1 to 9, a core porosity testing device includes:
A high-temperature high-pressure regulator 6 installed on top of the test box 5 for forming a dynamic high-temperature high-pressure environment to simulate the influence of the core under the formation condition;
The porosity dynamic detection component 9 is arranged at the top end of the inside of the test box body 5 and is used for forming multidirectional adjustment on the periphery of the core sample to be tested, so that the pores formed in the core sample to be tested by the injected magnetic fluid particles are marked, and the pore data fed back by the detection and analysis are detected;
the core detection auxiliary assembly 8 is arranged on the surface of the side frame table top 1 and is used for carrying out magnetic fluid particle injection on a core sample to be tested, guiding the magnetic fluid particles to flow in the core sample to be tested through the formed magnetic field control, and carrying out test detection on the core under the condition that physical mechanical force is applied on the outer circumference side in a staged manner.
In the present invention, according to fig. 2, 3, 6, 7 and 8, the core detection auxiliary assembly 8 includes:
Main rotation motor 81, rotating table face dish 82, limit connects solid frame 83, first pneumatic cylinder 84 and second pneumatic cylinder 88, main rotation motor 81 is located the center end bottom connection setting of rotating table face dish 82, limit connects solid frame 83 to drive first pneumatic cylinder 84 fastening connection who erects and is in the bottom base avris surface of rotating table face dish 82, second pneumatic cylinder 88 is located the roof surface of the bottom base of rotating table face dish 82, matrix formula permanent magnet group 899 is all installed to the avris of first pneumatic cylinder 84 and second pneumatic cylinder 88, the output of first pneumatic cylinder 84 and second pneumatic cylinder 88 is all installed and is set up detection pressure piece 898, the last fastening connection of bottom base top avris surface of rotating table face dish 82 has vibration cylinder 85, the outside cover of side of vibration cylinder 85 is established and is connected with solenoid control structure 86, the output connection of vibration cylinder 85 sets up flexible vibration guide arm 87.
The bottom base surface of the rotating table surface plate 82 is fixedly connected with a support frame 89, a transverse adjusting guide rail frame 890 is arranged on the side of the top of the support frame 89, the transverse adjusting guide rail frame 890 is used for driving an external grabbing mechanical arm to carry out sliding adjustment, the side of the top of the support frame 89 is fixedly connected with a driving wire rail 891, the inside of the driving wire rail 891 is slidably connected with a position sliding vertical guide rail 892, and the inside of the position sliding vertical guide rail 892 is slidably connected with a sliding seat 893.
The bottom connection of sliding seat 893 is provided with positioning seat 894, and the side end installation of positioning seat 894 sets up neutron detector 895, and the bottom base top fastening of rotating table face dish 82 has high-pressure pump injector 896, and the bottom installation of high-pressure pump injector 896 sets up and pours into core end 897 into.
In a specific scheme, firstly, after a core sample to be tested is placed on a rotary table surface plate 82 by using an external grabbing mechanical arm, a main rotary motor 81 is started, the rotary table surface plate 82 and the core sample to be tested are driven by the main rotary motor 81 to rotate at a constant speed, secondly, magnetic fluid particles are injected into the core sample to be tested by using a high-pressure pump injector 896 and an injection core end 897, the magnetic fluid particles are uniformly distributed in the pores of the core sample to be tested under the centrifugal fit of the constant speed rotation, then the first hydraulic cylinder 84 and the second hydraulic cylinder 88 form an external magnetic field through a matrix permanent magnet group 899, a connected electromagnetic coil control structure 86 is sleeved outside the side end of the vibrating cylinder 85, and further, the matrix permanent magnet group 899 is used for providing a basic magnetic field, fine adjustment is carried out through the electromagnetic coil control structure 86, so as to realize more accurate magnetic field control, form coordinated control, realize overall control of the magnetic field, facilitate the formed external magnetic field to guide the magnetic fluid particles to form controllable and flexible distribution in the core sample to be tested, enable the distribution situation of the magnetic fluid particles in the core to actively adjust the magnetic field intensity according to the requirement, then the vibrating cylinder 85 applies vibration on the outer peripheral side of the core sample to be tested through the flexible vibrating guide rod 87, simulate the vibration effect in the underground environment, simultaneously enable the first hydraulic cylinder 84 and the second hydraulic cylinder 88 to apply physical mechanical force on the outer peripheral side of the core through the detecting pressure piece 898, simulate the stress change in the underground environment, and then continuously ensure the position adjustment of the core sample to be tested in the testing process according to the rotatability of the core driven by the main rotating motor 81 through the rotating table disc 82, then, the driving line rail 891 drives the sliding seat 893 to slide through the position sliding vertical guide rail 892, the position of the neutron detector 895 is adjusted, the detection accuracy is ensured, the neutron detector 895 evaluates the porosity by detecting neutron signals in the core, the performance and the reliability of the core porosity testing device in the actual use process are improved, the accuracy and the reliability of the testing result are ensured, and the testing efficiency is improved.
In the present invention, as shown in fig. 2 to 5 and 9, the dynamic porosity detection assembly 9 includes:
The horizontal line rail 91, sliding position adjusting block 92, hinge vertical guide 93 and slip angle adjusting structure 94, horizontal line rail 91 fastening connection is in the inside topside of test box 5, sliding position adjusting block 92 is located the inside sliding connection of bottom of horizontal line rail 91 to drive hinge vertical guide 93 and the structure that bears and adjust, slip angle adjusting structure 94 is located the inside sliding connection of side guide of hinge vertical guide 93, the bottom connection of slip angle adjusting structure 94 sets up body frame 95, slip angle adjusting structure 94 comprises slip saddle, driving angle motor and two bevel gears, be used for driving body frame 95 and its structure that bears and adjust.
The bottom of the main frame 95 is hinged with three electric driving arms 97, the top of the side edge of each three electric driving arms 97 is hinged with a first rotary joint, the bottom of each first rotary joint is hinged with an electric telescopic rod 96, the first rotary joint is used for enabling the bottom of the main frame 95, the top of the side edge of each three electric driving arm 97 and the top of each electric telescopic rod 96 to be connected, the bottom of the side edge of each three electric driving arm 97 is hinged with a second rotary joint 98, and the second rotary joint 98 is used for enabling the bottom of the side edge of each three electric driving arms 97 to be connected with the bottom of each electric telescopic rod 96.
The side of the second rotary joint 98 is connected with a bracket 99, an electric rotary ball joint 990 is arranged at the side end of the bracket 99, a rotating angle gyroscope 991 is arranged at the side end of the electric rotary ball joint 990 in a connecting mode, a semi-ring tooth groove guide rail frame 992 is fixedly connected with the side end of the rotating angle gyroscope 991, and an X-ray scanning end 993 is slidably connected inside the side end of the semi-ring tooth groove guide rail frame 992.
In a specific scheme, when the core detection auxiliary assembly 8 works, under the control instruction of the PLC 3, the sliding position adjusting block 92 is synchronously driven by the transverse linear rail 91 to drive the hinge vertical guide rail 93 and the borne structure to adjust the position in the horizontal direction, the sliding angle adjusting structure 94 is driven by the hinge vertical guide rail 93 to drive the main frame 95 to adjust the position in the vertical direction, then the driving angle motor is started, the main frame 95 is driven by two bevel gears to adjust the angle, so that the main frame 95 can drive the borne related structure to adjust, then the three electric driving arms 97 are started, the electric telescopic rods 96 are driven by the first rotary joint and the second rotary joint 98 to adjust in a telescopic manner, and meanwhile, under the cooperation of the electric telescopic rods 96, the electric rotary spherical joint 990, the rotary angle gyroscope 991 and related structures are driven to adjust in multiple directions, the X-ray scanning end 993 is ensured to be close to or far away from a core sample to be tested, then an electric rotary ball joint 990 is started to drive a rotation angle gyroscope 991 to carry out rotation adjustment, the rotation angle gyroscope 991 is utilized to measure the rotation angle, the X-ray scanning end 993 is ensured to scan from different angles and feed data back to the PLC 3, then the X-ray scanning end 993 is started, the X-ray scanning end 993 is driven by a half-ring tooth groove guide rail frame 992 to move along the guide rail track, the core sample to be tested is subjected to X-ray scanning, the internal structural information of the core sample to be tested is obtained, the X-ray scanning data is transmitted to the PLC 3 for data processing results, processing and analysis are carried out, a detailed core porosity report is generated, and the core detection auxiliary assembly 8 is matched, the accuracy of the rock porosity test is effectively improved.
In the invention, as shown in fig. 1 and 2, a guiding conveyer belt structure 2 is arranged at the side of a side frame table top 1, the bottom of the side frame table top 1 is supported and fixed by a support frame body, and a PLC controller 3 and a detection box controller 4 are respectively arranged at the bottom end of the side frame table top 1.
The pneumatic sealing structures 7 are arranged on the left side and the right side of the test box body 5, and the pneumatic sealing structures 7 are used for testing the porosity of the core to seal the test box body 5.
In a specific scheme, under the cooperation of the PLC controller 3 and the detection box controller 4, the high-temperature high-pressure regulator 6 is enabled to form a high-temperature high-pressure condition simulating an underground environment in the detection box 5 through the heating element and the pressure regulating device, meanwhile, the pressure and the temperature of a core sample to be tested under the high-temperature high-pressure condition are ensured to be close to the actual geological condition through dynamic regulation, the accuracy of the test is guaranteed, the pneumatic sealing structure 7 is arranged and is used for sealing the detection box 5 when the porosity of the core is tested, namely, the pneumatic sealing structure 7 is in an open state before the core sample to be tested is placed on the rotary table disc 82 by utilizing the external grabbing mechanical arm, the influence of an external link on the test is reduced, and the guide conveyor belt structure 2 is convenient for guiding the core after the test to a subsequent processing area.
The wiring diagrams of the PLC controller 3, the detection case controller 4, the high-temperature high-pressure regulator 6, the main rotation motor 81, the neutron detector 895, the high-pressure pump injector 896 and the X-ray scanning end 993 in the present invention belong to the common general knowledge in the art, the working principle thereof is a known technology, and the model thereof is selected to be suitable according to the actual use, so the control mode and the wiring arrangement are not explained in detail for the PLC controller 3, the detection case controller 4, the high-temperature high-pressure regulator 6, the main rotation motor 81, the neutron detector 895, the high-pressure pump injector 896 and the X-ray scanning end 993.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
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| CN110320145A (en) * | 2019-07-10 | 2019-10-11 | 李阳 | A kind of magnetic fluid guide device and its application method for rock gap analysis |
| CN112255112A (en) * | 2020-10-09 | 2021-01-22 | 中国科学院地质与地球物理研究所 | Visual test system, rock mass heating method |
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