A calibration test device and method

Abstract

The application discloses a kind of calibration test device and method, it is related to measurement test technical field.The calibration test device includes heating piece, driving piece and control assembly.Heating piece defines and contains cavity, the inner peripheral wall of heating piece is adapted to test piece, heating piece is used to heat test piece to preset temperature.The output end of driving piece extends into containing cavity, the output end of driving piece can be connected with test piece and can drive test piece vibration.Control assembly is connected with heating piece and driving piece, and control assembly is used to control the preset temperature of heating piece and the vibration degree of test piece.The calibration test device can improve the reliability of test piece calibration test.

Description

Technical Field

[0001] This invention relates to the field of measurement and testing technology, and in particular to a calibration test apparatus and method. Background Technology

[0002] Before being deployed into the well, drilling instruments such as azimuth gamma ray meters and inclinometers generally require high-temperature calibration tests and simulation tests. When testing these instruments on the surface, it's necessary to simulate their operation during the drilling process to facilitate verification of their measurement effectiveness.

[0003] Existing heating equipment typically consists of a forced-air drying oven, heated by electric heating wires. A blower causes air convection within the oven, raising the internal temperature. The instrument is placed inside for heating and cannot be moved. Moreover, forced-air drying ovens are generally bulky and require fixed locations, providing only a high-temperature static measurement environment for drilling instruments, and cannot meet the high-temperature dynamic measurement needs of drilling instruments.

[0004] Therefore, there is an urgent need for a calibration test device and method to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a calibration test apparatus and method that can improve the reliability of calibration tests on test pieces.

[0006] To achieve the above-mentioned technical effects, the technical solution of the present invention is as follows:

[0007] A calibration test apparatus includes: a heating element defining a receiving cavity for accommodating a test piece, the heating element being used to heat the test piece to a preset temperature; a driving element having an output end extending into the receiving cavity, the output end of the driving element being connectable to the test piece and capable of driving the test piece to vibrate; and a control component connected to the heating element and the driving element, the control component being used to control the preset temperature of the heating element and the vibration level of the test piece.

[0008] Furthermore, the heating element includes: a heating cylinder defining the receiving cavity; and a heating section disposed on the inner wall of the heating cylinder for heating the temperature inside the receiving cavity.

[0009] Furthermore, the calibration test device also includes a temperature sensor disposed inside the heating cylinder. The control component is connected to the temperature sensor and configured to adjust the heating power of the heating unit according to the detection data of the temperature sensor, so as to keep the temperature inside the heating cylinder within a preset range.

[0010] Furthermore, multiple temperature sensors are provided, with multiple temperature sensors provided at both ends and the middle of the inner wall of the heating cylinder.

[0011] Furthermore, the heating element includes a heating wire, which is in a double-layered spiral shape.

[0012] Furthermore, the control component includes a speed regulator connected to the drive unit, the speed regulator being used to control the rotational speed of the drive unit.

[0013] Furthermore, the driving component can drive the test piece to revolve around a revolution axis, which is offset from the central axis of the test piece.

[0014] Furthermore, the calibration test device also includes an eccentric connector, one end of which is connected to the output end of the drive unit, and the other end of which is used to connect to the test piece. The output end of the drive unit is offset from the central axis of the test piece at the connection point on the eccentric connector.

[0015] Furthermore, the calibration test device also includes an adjustment mechanism, on which the heating element is disposed, and the adjustment mechanism is capable of adjusting the spatial position of the heating element.

[0016] A calibration test method, employing the calibration test apparatus as described above, includes:

[0017] The working position of the heating element of the calibration test device is obtained, the preset temperature of the heating element of the calibration test device is obtained, and the degree of vibration of the test piece driven by the driving element of the calibration test device is obtained.

[0018] Obtain the detection results from the detection module of the test piece;

[0019] Fit and obtain the relationship curve between the test result of the test piece and the working position, the preset temperature and the degree of vibration.

[0020] The beneficial effects of this invention are as follows:

[0021] The heating element's receiving cavity can be used to mount the test specimen, and the heating element can directly heat the test specimen to different preset temperatures, facilitating testing according to actual testing requirements. The driving element can drive the test specimen to vibrate, thereby simulating the vibration state of the test specimen during downhole drilling, ensuring a good simulation of the vibration environment of the downhole instrument during drilling, thus ensuring that the testing environment of the downhole instrument closely matches the actual situation. The control component can control the preset temperature and the vibration level of the test specimen, thereby obtaining accurate data on the preset temperature and vibration level of the test specimen during testing. Based on the test results, the calibration and testing of the test specimen can be well completed, providing a test reference for the actual use of the test specimen and improving its reliability during downhole drilling.

[0022] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] Figure 1 This is one of the structural schematic diagrams of the calibration test device provided in a specific embodiment of the present invention;

[0024] Figure 2 This is a wiring diagram of the driving component provided in a specific embodiment of the present invention;

[0025] Figure 3 This is a side view of the driving component provided in a specific embodiment of the present invention;

[0026] Figure 4 This is the second structural schematic diagram of the calibration test device provided in a specific embodiment of the present invention.

[0027] Figure Labels

[0028] 1. Heating element; 11. Receiving cavity; 12. Heating cylinder; 13. Heating section;

[0029] 2. Drive unit; 21. Live wire; 22. Neutral wire; 23. First connection; 24. Second connection;

[0030] 31. Speed ​​controller; 32. Temperature controller;

[0031] 5. Eccentric connectors;

[0032] 6. Locking components;

[0033] 7. Adjustment mechanism; 71. Adjustment seat; 72. First adjusting component; 73. Second adjusting component; 74. Third adjusting component. Detailed Implementation

[0034] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0035] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of the invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, the terms "first" and "second" are only used for descriptive distinction and have no special meaning.

[0038] The following is for reference. Figures 1-4 The specific structure of the calibration test apparatus according to an embodiment of the present invention is described.

[0039] like Figures 1-4 As shown, Figure 1A calibration test apparatus is disclosed, comprising a heating element 1, a driving element 2, and a control component. The heating element 1 defines a receiving cavity 11 for accommodating a test specimen, and the heating element 1 heats the test specimen to a preset temperature. The output end of the driving element 2 extends into the receiving cavity 11, and the output end of the driving element 2 can be connected to the test specimen and drive the test specimen to vibrate. The control component is connected to the heating element 1 and the driving element 2, and the control component is used to control the preset temperature of the heating element 1 and the vibration level of the test specimen.

[0040] It should be noted that, in the embodiments of the present invention, the test piece can be a drilling instrument such as an azimuth gamma meter or an inclinometer, or it can be set as other instruments that need to be tested.

[0041] Understandably, the receiving cavity 11 of the heating element 1 can be used to install the test piece. The heating element 1 can directly heat the test piece to different preset temperatures, thus facilitating testing according to actual testing requirements. The driving element 2 can drive the test piece to vibrate, thereby simulating the vibration state of the test piece during downhole drilling, ensuring a good simulation of the vibration environment of the downhole instrument during drilling, thus ensuring that the testing environment of the downhole instrument better matches the actual situation. The control component can control the preset temperature and the vibration level of the test piece, thereby obtaining accurate data on the preset temperature and vibration level of the test piece during testing. Based on the test results of the test piece, the calibration and testing of the test piece can be completed effectively, thus providing a test reference for the actual use of the test piece and improving the reliability of the test piece during downhole drilling.

[0042] In some embodiments, such as Figure 1 As shown, the heating element 1 includes a heating cylinder 12 and a heating section 13. A receiving cavity 11 is defined within the heating cylinder 12. The heating section 13 is disposed between the outer peripheral wall and the inner wall of the heating cylinder 12, and is used to heat the temperature inside the receiving cavity 11.

[0043] Understandably, the receiving cavity 11 of the heating cylinder 12 is only used to install the test piece, making its volume slightly larger than the test piece. This allows for easy adjustment of its position in three-dimensional space according to actual needs, further simulating the operating environment of a drilling instrument. Meanwhile, the heating element 13 is located on the inner wall of the heating cylinder 12. Integrating the heating element 13 directly into the heating cylinder 12 further reduces the volume of the heating element 1, facilitating adjustment of the test piece's position and improving the accuracy of calibration and testing.

[0044] Specifically, the heating cylinder 12 is configured as a heat preservation cylinder, which can play a heat preservation role, thereby further ensuring the heating effect of the test piece.

[0045] In some embodiments, the calibration test apparatus further includes a temperature sensor disposed inside the heating cylinder 12. The control component is connected to the temperature sensor and configured to adjust the heating power of the heating section 13 according to the detection data of the temperature sensor, so that the temperature inside the heating cylinder 12 is maintained within a preset range.

[0046] Understandably, the temperature sensor facilitates the control of the temperature within the heating cylinder 12, thereby improving the temperature stability of the test piece within the receiving cavity 11. Specifically, such as... Figure 1 As shown, the control component includes a temperature controller 32. The temperature sensor can transmit the collected temperature signal to the MCU unit of the temperature controller 32 via wired or wireless means. The MCU unit controls the heating section 13 to turn on and off according to the preset temperature set by the operator and uses negative feedback, so that the temperature of the test piece in the heating cylinder 12 can be kept in dynamic balance within the preset range.

[0047] Of course, in other embodiments of the present invention, the temperature sensor may also be directly mounted on the test piece.

[0048] In some embodiments, multiple temperature sensors are provided, with multiple temperature sensors provided at both ends and the middle of the inner wall of the heating cylinder 12.

[0049] It is understandable that since the temperature measured by the temperature sensors at different locations inside the heating cylinder 12 is different, in this embodiment, after multiple temperature sensors are provided at both ends and the middle of the inner wall of the heating cylinder 12, the average value of the temperature data detected by multiple temperature sensors can be used as the temperature of the test piece for calibration test, thereby further improving the reliability of the test results.

[0050] In some embodiments, the heating part 13 includes a heating wire, which is in a double-layer spiral shape.

[0051] Understandably, the heating wire can be conveniently placed in the heating cylinder 12, and the heating wire is evenly spirally distributed on the inner wall of the heating cylinder 12, which can better improve the heating effect of the heating wire on the receiving cavity 11. The heating wire can preferably be double-layered spiral, which has a better heating effect.

[0052] In some embodiments, such as Figure 1 As shown, the control component includes a speed regulator 31, which is connected to the drive component 2 and is used to control the speed of the drive component 2.

[0053] It is understandable that by setting the speed controller 31, it is easy to adjust the different rotation speeds of the test piece driven by the drive component 2, so as to adjust the different test environments of the test piece and improve the calibration test reliability of the test piece.

[0054] Specifically, the speed controller 31 is a stepless speed controller with a speed range of 0 to 500 r / min.

[0055] In some embodiments, such as Figure 1 and Figure 3 As shown, the driving component 2 can drive the test piece to revolve around the revolution axis, which is offset from the central axis of the test piece.

[0056] It is understandable that the test piece is driven to revolve around the revolution axis by the driving component 2, and the revolution axis is offset from the central axis of the test piece. When the test piece rotates around its central axis, the driving component 2 can also drive the test piece to revolve around the revolution axis, thereby realizing the vibration of the test piece and simulating the rotation and vibration during the drilling process, thus achieving a better simulation accuracy of the test piece.

[0057] Specifically, in this embodiment, the driving component 2 is a geared motor and an induction motor, which can better improve the reliability of driving the movement of the test piece.

[0058] In some embodiments, the geared motor can drive the vibration of the test piece in both clockwise and counterclockwise directions to further simulate the actual operating environment of the test piece. Specifically, such as Figure 2 As shown, the geared motor has a live wire 21 and a neutral wire 22. The live wire 21 can be selectively connected via a first terminal 23 and a second terminal 24. When the live wire 21 is connected to the first terminal 23, the geared motor rotates clockwise; when the live wire 21 is connected to the second terminal 24, the geared motor rotates counterclockwise. In other embodiments of the present invention, the drive unit 2 can also achieve forward and reverse rotation through other existing methods.

[0059] In some embodiments, such as Figure 3 As shown, the calibration test device also includes an eccentric connector 5. One end of the eccentric connector 5 is connected to the output end of the drive unit 2, and the other end of the eccentric connector 5 is used to connect the test piece. The connection point of the output end of the drive unit 2 on the eccentric connector 5 is offset from the central axis of the test piece.

[0060] It is understandable that, since the connection between the driving component 2 and the eccentric connector 5 is offset from the central axis of the test piece, the driving component 2 can drive the rotation axis of the test piece to deviate from its central axis when driving the eccentric connector 5 to rotate, thus achieving the revolution motion of the test piece.

[0061] Specifically, such as Figure 3 As shown, the test piece is connected to the eccentric connector 5 by multiple locking parts 6.

[0062] In some embodiments, such as Figure 4As shown, the calibration test device also includes an adjustment mechanism 7, and the heating element 1 is mounted on the adjustment mechanism 7. The adjustment mechanism 7 can adjust the spatial position of the heating element 1.

[0063] It is understandable that the spatial position of the test piece inside the heating element 1 can be adjusted by adjusting the spatial position of the heating element 1 through the adjusting mechanism 7.

[0064] Specifically, such as Figure 4 As shown, the adjustment mechanism 7 in this embodiment includes an adjustment seat 71, a first adjustment member 72, a second adjustment member 73, and a third adjustment member 74. The adjustment seat 71 is used to install the heating member 1. The position of the tool surface of the heating member 1 can be changed by adjusting the first adjustment member 72, the tilt angle of the heating member 1 can be changed by adjusting the second adjustment member 73, and the orientation position of the heating member 1 can be changed by adjusting the third adjustment member 74.

[0065] Specifically, the adjustment mechanism 7 in this embodiment can be directly set as a digital three-axis turntable, and its specific structure does not need to be described in detail.

[0066] In some specific embodiments, the adjustment mechanism 7 is connected to the host computer software via a communication serial port to record and display the spatial position parameters of the heating element 1.

[0067] The present invention also discloses a calibration test method, which uses the calibration test device as described above, including: obtaining the working position of the heating element 1 of the calibration test device, obtaining the preset temperature of the heating element 1 of the calibration test device, obtaining the vibration degree of the test piece driven by the driving element 2 of the calibration test device; obtaining the detection result of the detection module of the test piece; fitting and obtaining the relationship curve between the detection result of the test piece and the working position, preset temperature and vibration degree.

[0068] According to the calibration test method of the present invention, due to the calibration test device described above, the reliability of the calibration test of the test piece can be improved, and different relationship curves can be simulated according to the test results under different test environments, thereby improving the practicality of its calibration simulation.

[0069] Specifically, during the test, the test piece is installed at the output end of the drive unit 2 and placed in the receiving cavity 11. The detection module of the test piece is connected to the computer host computer software via a serial port to measure the pulse count output by the detection module. The speed controller 31 and temperature controller 32 buttons are adjusted to set the predetermined speed and temperature. After heating and holding for a period of time, the count output of the detection module at that temperature and speed is measured.

[0070] Then, at the same temperature but different well inclination angles, the dynamic angle measurement results of the test piece are recorded; at the same well inclination angle but different temperatures, the dynamic angle measurement results of the test piece are recorded; the results are fitted to obtain the corrected calibration curve for calibration calculation.

[0071] In the description of this specification, references to terms such as "some embodiments," "other embodiments," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0072] The above description is only a preferred embodiment of the present invention. For those skilled in the art, there will be changes in the specific implementation and application scope based on the ideas of the present invention. The content of this specification should not be construed as a limitation of the present invention.

Claims

1. A calibration test apparatus, characterized in that, include: A heating element (1) defines a receiving cavity (11) for receiving a test piece, and the heating element (1) is used to heat the test piece to a preset temperature. The output end of the driving component (2) extends into the receiving cavity (11), and the output end of the driving component (2) can be connected to the test piece and can drive the test piece to vibrate; A control component is connected to the heating element (1) and the driving element (2). The control component is used to control the preset temperature of the heating element (1) and the vibration degree of the test piece. The driving component (2) can drive the test piece to revolve around the revolution axis, and the revolution axis is offset from the central axis of the test piece; The calibration test device also includes an eccentric connector (5), one end of which is connected to the output end of the drive (2), and the other end of which is used to connect the test piece. The output end of the drive (2) is offset from the central axis of the test piece at the connection point on the eccentric connector (5). The calibration test device further includes an adjustment mechanism (7), and the heating element (1) is disposed on the adjustment mechanism (7). The adjustment mechanism (7) includes an adjustment seat (71), a first adjustment element (72), a second adjustment element (73), and a third adjustment element (74). The adjustment seat (71) is used to install the heating element (1). The first adjustment element (72) is used to adjust the tool surface position of the heating element (1). The second adjustment element (73) is used to adjust the tilt angle of the heating element (1). The third adjustment element (74) is used to adjust the orientation position of the heating element (1).

2. The calibration test apparatus according to claim 1, characterized in that, The heating element (1) includes: Heating cylinder (12), the receiving cavity (11) is defined inside the heating cylinder (12); Heating section (13) is provided on the inner wall of the heating cylinder (12) and is used to heat the temperature inside the receiving cavity (11).

3. The calibration test apparatus according to claim 2, characterized in that, The calibration test device also includes a temperature sensor, which is located inside the heating cylinder (12). The control component is connected to the temperature sensor and configured to adjust the heating power of the heating part (13) according to the detection data of the temperature sensor so that the temperature inside the heating cylinder (12) is maintained within a preset range.

4. The calibration test apparatus according to claim 3, characterized in that, Multiple temperature sensors are provided, and multiple temperature sensors are provided at both ends and in the middle of the inner wall of the heating cylinder (12).

5. The calibration test apparatus according to claim 2, characterized in that, The heating part (13) includes a heating wire, which is in a double-layer spiral shape.

6. The calibration test apparatus according to claim 1, characterized in that, The control component includes a speed regulator (31), which is connected to the drive unit (2) and is used to control the rotational speed of the drive unit (2).

7. A calibration test method, employing the calibration test apparatus as described in any one of claims 1-6, characterized in that, include: Obtain the working position of the heating element (1) of the calibration test device, obtain the preset temperature of the heating element (1) of the calibration test device, and obtain the vibration degree of the test piece driven by the driving element (2) of the calibration test device. Obtain the detection results of the detection module of the test piece; Fit and obtain the relationship curve between the test result of the test piece and the working position, the preset temperature and the degree of vibration.

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