Energy-saving core protection sampling device for prospecting

Abstract

The application belongs to the technical field of sampling devices, and particularly relates to an energy-saving core protection sampling device for prospecting, wherein the energy-saving core protection sampling device for prospecting comprises a geological exploration drilling machine, a core tube, a pressure regulating device and a hydraulic energy recovery device, the geological exploration drilling machine is fixedly provided with a circuit protection shell, the pressure regulating device and the hydraulic energy recovery device are arranged in the circuit protection shell, the geological exploration drilling machine is fixedly provided with a hydraulic machine on one side, the hydraulic machine is fixedly provided with an infrared detection mechanism on the lower side, and the infrared detection mechanism is used for judging the hardness of the rock stratum drilled by the core tube. The energy-saving core protection sampling device for prospecting can dynamically adjust the pressure of coring according to the hardness of the rock stratum through the arrangement of the corresponding mechanism, so that the probability of core fragmentation or deformation is reduced, the influence on the integrity of the core is reduced, the probability of core falling off during the lifting of the drilling machine is reduced, and the normal coring of the subsequent sampling device is facilitated.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of sampling device, and particularly relates to an energy-saving core protection sampling device for prospecting. BACKGROUND

[0002] In geological engineering, drilling and sampling of rock strata is an important way to understand geological structure, and a sampling device needs to be used, a hollow drill bit on the sampling device is drilled towards the rock strata, the rock core is retained in the drill bit during the drilling process and is taken out together with the drill bit, and then the rock core is taken out, the function of the coring drill bit is to break the bottom rock in a ring shape to form a rock core column, the purpose of coring is to obtain original geological data of the strata, such as porosity, oil saturation, water invasion and water content, and the technical problem of coring is to keep the balance between the internal pressure of the inner cylinder and the pressure between the inner cylinder and the wellbore, to ensure that the sealing liquid in the inner cylinder is not contaminated when drilling, and that the rock core is not pushed off due to the release of gas pressure between the rock core in the inner cylinder when the drill is pulled out.

[0003] At present, when the rock core is sampled, the geological exploration drilling machine is used to rotate the core tube for sampling, but the existing sampling device cannot dynamically adjust the coring pressure according to the hardness of the rock strata, and the rock core is easily broken or deformed, which not only affects the integrity of the rock core, but also easily causes the rock core to fall off when the drill is pulled out, and is not convenient for normal coring of the subsequent sampling device.

[0004] The information disclosed in this BACKGROUND section is only for the purpose of increasing the understanding of the background of the present application and should not be regarded as an acknowledgment or any form of suggestion that this information forms prior art that is publicly known. SUMMARY

[0005] The present application aims to provide an energy-saving core protection sampling device for prospecting, which can solve the problem that the sampling device cannot dynamically adjust the coring pressure according to the hardness of the rock strata, and the rock core is easily broken or deformed.

[0006] In order to achieve the above-mentioned purpose, the technical scheme provided by an embodiment of the present application is as follows:

[0007] The energy-saving core protection sampling device for prospecting comprises a geological exploration drilling machine, a core tube, a pressure adjusting device and a hydraulic energy recovery device, a circuit protection shell is fixedly installed on the geological exploration drilling machine, the pressure adjusting device and the hydraulic energy recovery device are arranged in the circuit protection shell, a hydraulic machine is fixedly installed on one side of the geological exploration drilling machine, an infrared detection mechanism is fixedly installed on the lower side of the hydraulic machine, the infrared detection mechanism is used to determine the rotating speed of the core tube, the pressure adjusting device is used to monitor the hardness of the rock strata contacted by the core tube and to adjust and control the pressure of the core tube, and the hydraulic energy recovery device is used to regulate and control the energy in the hydraulic machine and to reduce the energy consumption in the sampling process.

[0008] In one or more embodiments of the present application, the pressure regulating device is electrically connected with the infrared detection mechanism, facilitating the control of the pressure regulating device on the infrared detection mechanism, so that the pressure regulating device can operate according to the judgment of the infrared detection mechanism on the rotating speed, improving the operation stability of the pressure regulating device.

[0009] The hydraulic energy recovery device is electrically connected with the hydraulic machine, facilitating the regulation and control of the hydraulic energy recovery device on the hydraulic machine, so that the hydraulic energy recovery device can control the hydraulic accumulator to recover the energy in the hydraulic machine, and the hydraulic energy recovery device can control the hydraulic accumulator to release the energy back into the hydraulic machine, greatly reducing the energy consumption.

[0010] In one or more embodiments of the present application, the pressure regulating device includes a circuit board one, facilitating the installation of the pressure module, information extraction module, information processor, power control module and warning device, improving the stability of each module, so that each module can cooperate.

[0011] The circuit board one is provided with a pressure module, an information extraction module, an information processor, a power control module and a warning device, and each module can cooperate with each other on the circuit board one, can process the information such as the rotating speed and pressure of the core tube, and improve the operation stability of the core tube.

[0012] The pressure module is used to judge whether the pressure in the core tube is balanced with the pressure between the wellbore, and is transmitted to the information processor, which can judge whether the pressure in the core tube is balanced with the pressure between the wellbore, and can judge the stability of the core through the balance.

[0013] In one or more embodiments of the present application, the information extraction module is used to extract information in the infrared detection mechanism and transmit it to the information processor, the information processor is used to compare the information in the pressure module and the infrared detection mechanism, and after successful determination, the information is transmitted to the power control module, and if the determination fails, the information is transmitted to the warning device.

[0014] In one or more embodiments of the present application, the power control module is used to control the rotating speed of the core tube according to the signal sent by the information processor, which can control the rotating speed and pressure of the core tube to better drill the rock formation, reduce the probability of core fragmentation or deformation, and improve the integrity of the core.

[0015] In one or more embodiments of the present application, the warning device includes a buzzer alarm and an information receiving module, the buzzer alarm is used to alert the user, and the information receiving module is used to receive the signal sent by the information processor, facilitating the user to check, and after the warning, the user can detect the pressure module and the infrared detection mechanism.

[0016] In one or more embodiments of the present application, the lower side of the hydraulic machine is fixedly provided with a hydraulic accumulator, which is used to recover energy in the hydraulic machine and is regulated by a hydraulic energy recovery device. When the load in the hydraulic machine is decelerated or stopped during movement, the energy in the hydraulic machine is not completely consumed, but exists in the form of pressure in the hydraulic machine. Through a hydraulic regeneration circuit, the energy can be converted into pressure energy and input into the hydraulic system again to regenerate energy. The hydraulic regeneration circuit stores hydraulic energy through the hydraulic accumulator.

[0017] In one or more embodiments of the present application, the hydraulic energy recovery device comprises a second circuit board, which is provided with a signal receiving module and an energy regulating module.

[0018] In one or more embodiments of the present application, the signal receiving module is used to receive operation information of the hydraulic machine, and the energy regulating module can control recovery and release of energy in the hydraulic machine by the hydraulic accumulator according to the operation information of the hydraulic machine.

[0019] Compared with the prior art, the energy-saving core protection sampling device for prospecting can dynamically adjust the pressure of coring according to the hardness of the rock stratum through the setting of the corresponding mechanism, so that the probability of core fragmentation or deformation is reduced, which reduces the influence on the integrity of the core and also reduces the probability of core falling off when the drill is pulled out, and facilitates normal coring of the subsequent sampling device. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 is a front view of the energy-saving core protection sampling device for prospecting in an embodiment of the present application;

[0022] Figure 2 is a front view of the energy-saving core protection sampling device for prospecting in an embodiment of the present application; Figure 1 is a structure schematic view of A in the embodiment;

[0023] Figure 3 is a perspective view of the energy-saving core protection sampling device for prospecting in an embodiment of the present application;

[0024] Figure 4 is a perspective view of the energy-saving core protection sampling device for prospecting in an embodiment of the present application; Figure 3 is a structure schematic view of B in the embodiment;

[0025] Figure 5Function diagram of pressure regulating device in an embodiment of the present application;

[0026] Figure 6 Function diagram of hydraulic energy recovery device in an embodiment of the present application.

[0027] Explanation of main reference signs:

[0028] 1-geological exploration drilling machine, 2-core tube, 3-pressure regulating device, 4-hydraulic energy recovery device, 5-circuit protection shell, 6-hydraulic machine, 7-infrared detection mechanism, 8-hydraulic accumulator. DETAILED DESCRIPTION

[0029] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0030] As shown in the drawings, Figures 1 to 6 The energy-saving core protection sampling device for prospecting in an embodiment of the present application includes a geological exploration drilling machine 1, a core tube 2, a pressure regulating device 3 and a hydraulic energy recovery device 4. The circuit protection shell 5 is fixedly installed on the geological exploration drilling machine 1, and the pressure regulating device 3 and the hydraulic energy recovery device 4 are both arranged in the circuit protection shell 5. The hydraulic machine 6 is fixedly installed on one side of the geological exploration drilling machine 1, and the infrared detection mechanism 7 is fixedly installed on the lower side of the hydraulic machine 6. The infrared detection mechanism 7 is used to determine the rotational speed of the core tube 2. The pressure regulating device 3 is used to monitor the hardness of the rock stratum contacted by the core tube 2. Through the adjustment of the rotational speed, the pressure regulating control of the core tube 2 is realized. The hydraulic energy recovery device 4 is used to regulate and control the energy in the hydraulic machine 6 and reduce the energy consumption in the sampling process.

[0031] The principle of infrared detection of rotational speed is mainly based on the Doppler effect. When the light beam emitted by the infrared light source irradiates on the rotating object, the frequency of the reflected light will change, and this frequency change is related to the rotational speed of the object. By measuring the change of the reflected light frequency, the rotational speed of the object can be calculated. Specifically, the infrared detection mechanism includes an infrared light source, an infrared sensor and a computer. The infrared light source emits a beam of infrared light, and the infrared sensor receives the reflected infrared light. When the target approaches or moves away from the infrared sensor, the frequency of the reflected infrared light will change, and this change is proportional to the movement speed of the target. By measuring this frequency change, the rotational speed of the target can be calculated.

[0032] As shown in the drawings, Figures 1 to 6As shown, the pressure regulating device 3 is electrically connected with the infrared detection mechanism 7, facilitating the control of the pressure regulating device 3 on the infrared detection mechanism 7, so that the pressure regulating device 3 can operate according to the judgment of the infrared detection mechanism 7 on the rotating speed, improving the operation stability of the pressure regulating device 3.

[0033] The hydraulic energy recovery device 4 is electrically connected with the hydraulic machine 6, facilitating the regulation and control of the hydraulic energy recovery device 4 on the hydraulic machine 6, so that the hydraulic energy recovery device 4 can control the hydraulic accumulator 8 to recover the energy in the hydraulic machine 6, and the hydraulic energy recovery device 4 can control the hydraulic accumulator 8 to release the energy back into the hydraulic machine 6, greatly reducing the energy consumption.

[0034] As shown in the figure, Figures 1 to 5 The pressure regulating device 3 includes a circuit board one, facilitating the installation of the pressure module, information extraction module, information processor, power control module and warning device, improving the stability of each module, so that each module can cooperate.

[0035] The circuit board one is provided with a pressure module, an information extraction module, an information processor, a power control module and a warning device, and each module can cooperate with each other on the circuit board one, and can process the rotating speed and pressure information of the core tube 2, improving the operation stability of the core tube 2.

[0036] In addition, the pressure module is used to judge whether the pressure in the core tube 2 is balanced with the pressure between the wellbore, and is transmitted to the information processor, which can judge whether the pressure in the core tube 2 is balanced with the pressure between the wellbore, and can judge the stability of the core through the balance.

[0037] As shown in the figure, Figures 1 to 6 The information extraction module is used to extract the information in the infrared detection mechanism 7 and transmit it to the information processor, and the information processor is used to compare the information in the pressure module and the infrared detection mechanism 7, and after successful determination, the information is transmitted to the power control module, and if the determination fails, the information is transmitted to the warning device.

[0038] As shown in the figure, Figures 1 to 5 The power control module is used to control the rotating speed of the core tube 2 according to the signal sent by the information processor, which can control the rotating speed and pressure of the core tube 2, so that the core tube 2 can better drill the rock formation, reduce the probability of core fragmentation or deformation, and improve the integrity of the core.

[0039] As shown in the figure, Figures 1 to 6 The warning device includes a buzzer alarm and an information receiving module, the buzzer alarm is used to alarm the user, and the information receiving module is used to receive the signal sent by the information processor, facilitating the user to check, and after the alarm, the user can detect the pressure module and the infrared detection mechanism 7.

[0040] like Figures 1 to 6 As shown, a hydraulic accumulator 8 is fixedly installed on the lower side of the hydraulic press 6. The hydraulic accumulator 8 is used to recover the energy in the hydraulic press 6 and is regulated by the hydraulic energy recovery device 4. When the load in the hydraulic press 6 slows down or stops during movement, the energy in the hydraulic press 6 is not completely consumed, but exists in the hydraulic press 6 in the form of pressure. Through the hydraulic regeneration circuit, this energy can be converted into pressure energy and re-input into the hydraulic system to achieve energy regeneration. The hydraulic regeneration circuit stores the hydraulic energy through the hydraulic accumulator 8.

[0041] like Figures 1 to 6 As shown, the hydraulic energy recovery device 4 includes a second circuit board, on which a signal receiving module and an energy control module are provided.

[0042] like Figures 1 to 5 As shown, the signal receiving module is used to receive the operating information of the hydraulic machine 6, and the energy control module can control the hydraulic accumulator 8 to recover and release the energy in the hydraulic machine 6 according to the operating information of the hydraulic machine 6.

[0043] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0044] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. Energy-saving core protection sampling device for prospecting, characterized in that: include: A geological exploration drill rig, a core barrel, a pressure regulating device, and a hydraulic energy recovery device. The core barrel is provided on one side of the geological exploration drill rig. The pressure regulating device and the hydraulic energy recovery device are both fixedly mounted on the geological exploration drill rig. A circuit protection housing is fixedly mounted on the geological exploration drill rig. The pressure regulating device and the hydraulic energy recovery device are both disposed within the circuit protection housing. A hydraulic press is fixedly mounted on one side of the geological exploration drill rig. An infrared detection mechanism is fixedly mounted on the lower side of the hydraulic press. The infrared detection mechanism is used to determine the rotational speed of the core barrel. The pressure regulating device is used to monitor the hardness of the rock formation contacted by the core barrel and to regulate and control the pressure of the core barrel. The pressure regulating device includes a first circuit board, on which a pressure module, an information extraction module, an information processor, a power regulation module, and a warning device are provided, and the pressure module, information extraction module, information processor, power regulation module, and warning device are all electrically connected to the first circuit board; The pressure module is used to determine whether the pressure in the core tube is balanced with the pressure in the wellbore through the pressure sensor, and transmit the result to the information processor.

2. The energy-saving core protection sampling device for prospecting according to claim 1 is characterized in that: The hydraulic energy recovery device is used to regulate the energy in the hydraulic machine and reduce energy consumption during the sampling process. The pressure regulating device is electrically connected to the infrared detection mechanism, and the hydraulic energy recovery device is electrically connected to the hydraulic machine.

3. The energy-saving core protection sampling device for prospecting according to claim 1 is characterized in that: The information extraction module is used to extract information from the infrared detection mechanism and transmit it to the information processor. The information processor is used to compare the information in the pressure module and the infrared detection mechanism. If the judgment is successful, the information is transmitted to the power control module. If the judgment fails, the information is transmitted to the warning device.

4. The energy-saving core protection sampling device for prospecting according to claim 1 is characterized in that: The power control module is used to control the rotation speed of the core barrel according to the signal sent by the information processor.

5. The energy-saving core protection sampling device for prospecting according to claim 1 is characterized in that: The warning device includes a buzzer alarm and an information receiving module. The buzzer alarm is used to issue a warning to the user, and the information receiving module is used to receive a signal sent by an information processor.

6. The energy-saving core protection sampling device for prospecting according to claim 1 is characterized in that: A hydraulic accumulator is fixedly installed on the lower side of the hydraulic press. The hydraulic accumulator is used to recover energy in the hydraulic press and is regulated by a hydraulic energy recovery device.

7. The energy-saving core protection sampling device for prospecting according to claim 6 is characterized in that: The hydraulic energy recovery device includes a second circuit board, on which a signal receiving module and an energy control module are provided.

8. The energy-saving core protection sampling device for prospecting according to claim 7 is characterized in that: The signal receiving module is used to receive the operating information of the hydraulic press, and the energy control module can control the recovery and release of energy in the hydraulic press by the hydraulic accumulator according to the operating information of the hydraulic press.

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