Azimuth resistivity rotation testing device

Abstract

The utility model relates to the technical field of exploratory well tools, in particular to an azimuthal resistivity rotation testing device, and aims to alleviate the technical problems of cost rise and period prolonging caused by high testing environment requirements and one-sidedness of a single detection result in related technologies. The testing device is composed of a supporting mechanism, a transmission mechanism, a driving mechanism and a testing baffle, wherein the resistivity of the material of the testing baffle is lower than that of air. According to the testing device, the testing baffle arranged above the azimuth resistivity and air serve as a detection object combination, the driving mechanism drives the azimuth resistivity to rotate so as to simulate a complete working state, and the one-sidedness of a detection result is eliminated. No specific environment is needed, data can be provided rapidly and visually, and time and economic cost are effectively saved. The technical problems that the cost is increased and the period is prolonged due to the fact that an existing testing device is high in testing environment requirement and one-sidedness of a single-time detection result are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of well exploration tools, in particular to an azimuth resistivity rotation testing device. Background Art

[0002] Azimuth resistivity while drilling (LWD) is a new wireless logging tool that measures the distance and azimuth of reservoir boundaries. After LWD maintenance, it requires edge detection data testing to ensure accuracy. Currently, testing edge detection data after LWD maintenance relies primarily on marine surveying technology, using a combination of seawater and air as the probes. Because the tool cannot rotate, this results in biased edge detection data. To obtain comprehensive data, multiple tests are required, increasing testing costs and prolonging the testing cycle. Furthermore, the effectiveness of marine surveying technology is affected by weather and the operating environment, further increasing operational uncertainty and complexity.

[0003] The existing marine surveying technology used for azimuthal resistivity edge direction data detection has technical problems such as increased costs and extended cycles due to high test environment requirements and one-sidedness of single test results. Utility Model Content

[0004] The purpose of the utility model is to provide an azimuth resistivity rotation test device to alleviate the technical problems of increased costs and extended cycles caused by high test environment requirements and one-sidedness of single test results in related technologies.

[0005] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0006] The test device provided by the utility model includes:

[0007] The azimuth resistivity tester is mounted on the support mechanism, with one end connected to the drive mechanism via the transmission mechanism and the other end electrically connected to the test host via a slip ring. The drive mechanism is used to rotate the azimuth resistivity tester around its axis. The test baffle is made of a material with a resistivity lower than that of air and is positioned above the azimuth resistivity tester.

[0008] Specifically, the driving mechanism is configured as a variable frequency motor.

[0009] Specifically, the transmission mechanism is configured as a coupling, one end of the coupling is connected to the output shaft of the variable frequency motor, and the other end is connected to the end of the azimuthal resistivity.

[0010] Specifically, the support mechanism includes two rolling assemblies, and the two rolling assemblies are respectively connected to two ends of the azimuthal resistivity.

[0011] Specifically, the rolling assembly includes a rolling support and a rolling unit. The rolling unit is mounted on the rolling support and connected to the azimuth resistivity, and is used to support the azimuth resistivity.

[0012] Specifically, the rolling assembly further includes a brake caster, which is arranged at the bottom of the rolling bracket and rolls on the ground.

[0013] Specifically, the rolling unit includes a rotating frame and a rolling element. The rotating frame is mounted on the rolling support. The rolling element is rotatably connected to the rotating frame and connected to the azimuth resistivity. The rolling element rotates with the azimuth resistivity.

[0014] Specifically, the rolling elements are configured as two sets of rollers. The roller axes are parallel to the axis of the azimuth resistivity. Both sets of rollers are rotatably connected to the rolling bracket and simultaneously abut against the azimuth resistivity.

[0015] Specifically, the rolling element is configured as a bearing, the bearing is mounted on the rotating frame and is rotatably connected to the rotating frame, and the azimuth resistivity is inserted into the bearing.

[0016] Specifically, the material of the test baffle can be set to aluminum, iron, nickel or other materials.

[0017] Based on the above technical solutions, the beneficial effects of the present invention are analyzed as follows:

[0018] The utility model provides an azimuth resistivity rotation testing device, comprising:

[0019] The azimuth resistivity tester is mounted on the support mechanism, with one end connected to the drive mechanism via the transmission mechanism and the other end electrically connected to the test host via a slip ring. The drive mechanism is used to rotate the azimuth resistivity tester around its axis. The test baffle is made of a material with a resistivity lower than that of air and is positioned above the azimuth resistivity tester.

[0020] In specific applications, the azimuth resistivity meter is mounted on the support mechanism, one end of the azimuth resistivity meter is connected to the drive mechanism via the transmission mechanism, and the other end is connected to the test host via the slip ring and connecting wires for real-time data transmission. The test baffle is then lifted above the azimuth resistivity meter. The drive mechanism rotates the azimuth resistivity meter, changing the position of the test baffle during rotation. The edge detection direction data displayed by the test host is monitored in real time, and the accuracy of the data can be directly determined based on the on-site placement of the test baffle.

[0021] As can be seen, compared to existing technologies, this test device uses a metal plate and air as the detection object combination, and the drive mechanism drives the azimuthal resistivity rotation to simulate a complete working state, eliminating the one-sidedness of the test results. It is independent of a specific test environment and can provide data results quickly and intuitively, saving time and money. This overcomes the technical problems of existing test devices, which are often associated with high test environment requirements and the one-sidedness of single test results, leading to increased costs and extended test cycles.

[0022] This testing device, independent of a specific testing environment, uses the test baffle and air as the detection target combination, and uses a drive mechanism to rotate the azimuthal resistivity to simulate a working state, eliminating the biased nature of test results. Compared to existing technologies, it provides data quickly and intuitively, saving time and money, and overcoming the cost increases and cycle times associated with demanding testing environments and the biased nature of single test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the structure of the test device provided in the embodiment of the utility model Figure 1 ;

[0025] Figure 2 The structure of the test device Figure 2 .

[0026] icon:

[0027] 001, azimuthal resistivity;

[0028] 100, support mechanism; 110, rolling assembly; 111, rolling bracket; 112, rolling unit; 1121, turret; 1122, rolling element;

[0029] 200, transmission mechanism;

[0030] 300, driving mechanism;

[0031] 400. Test baffle. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0034] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0035] Existing testing devices have technical problems such as increased costs and extended cycles due to high testing environment requirements and one-sidedness of single test results.

[0036] In view of this, the present invention provides an azimuthal resistivity rotation testing device, comprising:

[0037] Support mechanism 100, transmission mechanism 200, drive mechanism 300, and test baffle 400. Azimuth resistivity 001 is mounted on support mechanism 100. One end is connected to drive mechanism 300 via transmission mechanism 200 for power, and the other end is electrically connected to the test host via a slip ring. Drive mechanism 300 is used to rotate azimuth resistivity 001 around its axis. Test baffle 400 is made of a material with a resistivity lower than that of air and is positioned above azimuth resistivity 001.

[0038] Based on the above technical solutions, the testing device provided by the present invention can achieve the following technical effects:

[0039] This testing device uses a test baffle 400 and air as the detection object combination. The drive mechanism 300 rotates the azimuthal resistivity 001 to simulate a complete working state, eliminating the biased nature of test results. Independent of specific test environments, it provides quick and intuitive data results, saving time and money. This overcomes the technical issues of existing testing devices, which often suffer from high test environment requirements and the biased nature of single test results, leading to increased costs and extended test cycles.

[0040] The following combination Figures 1 to 2 The structure and shape of the test device provided in this embodiment are described in detail:

[0041] In the solution of this embodiment, the material of the test baffle 400 can be set to aluminum, iron or nickel, etc., which has a lower resistivity than air and can be used in combination with air as a detection object, avoiding the problem of using seawater and air as a detection object combination in existing marine measurement technology and being affected by the environment and weather.

[0042] In the solution of this embodiment, the driving mechanism 300 is configured as a variable frequency motor, which is convenient for adjusting the rotation speed to simulate the working state of the azimuthal resistivity 001 when the drill bit is lowered into the well, thereby eliminating the one-sidedness of the detection result.

[0043] In the solution of this embodiment, the transmission mechanism 200 is configured as a coupling, one end of the coupling is connected to the output shaft of the variable frequency motor, and the other end is connected to the end of the azimuth resistivity 001 to transmit the power of the variable frequency motor to the azimuth resistivity 001. Among them, the coupling uses a universal joint coupling to reduce the axis alignment requirements of the variable frequency motor and the azimuth resistivity 001, thereby simplifying the test operation process.

[0044] In the solution of this embodiment, the support mechanism 100 includes two rolling assemblies 110. The two rolling assemblies 110 are respectively connected to the two ends of the azimuthal resistivity 001 to form a double cantilever beam support for the azimuthal resistivity 001.

[0045] Regarding the structural composition of the rolling assembly 110, specifically:

[0046] Rolling assembly 110 includes a rolling support 111, a rolling unit 112, and a brake caster. Rolling unit 112 includes a rotating frame 1121 and a rolling element 1122. Rotating frame 1121 is mounted on rolling support 111, while rolling element 1122 is rotatably connected to rotating frame 1121 and connected to the azimuth resistivity 001. Rolling element 1122 rotates with the azimuth resistivity 001. The brake caster is mounted at the bottom of rolling support 111 and rolls on the ground. The brake caster can switch between a rolling state and a braking state.

[0047] In an alternative embodiment of this embodiment, rolling elements 1122 are configured as two sets of rollers. The axes of both sets of rollers are arranged in the same horizontal plane and parallel to the axis of the azimuth resistivity 001. Both sets of rollers are rotatably connected to the rolling support 111 and abut against the azimuth resistivity 001. The rollers rotate with the azimuth resistivity 001, reducing the frictional resistance of the azimuth resistivity 001 and providing support for the azimuth resistivity 001.

[0048] Among them, the roller can be set to nylon material to provide stable support for the azimuth resistivity 001 without damaging the outer wall of the azimuth resistivity 001.

[0049] In an alternative embodiment of this embodiment, rolling element 1122 is configured as a bearing, which is mounted on and rotatably connected to rotating frame 1121. Azimuth resistivity 001 is inserted into the bearing, which rotates with the azimuth resistivity 001, reducing frictional resistance of the azimuth resistivity 001 and providing support for the azimuth resistivity 001.

[0050] In summary, the specific working process of the testing device provided in this embodiment is as follows:

[0051] For example, the rolling element 1122 is a roller, and the test baffle 400 is made of aluminum metal.

[0052] S10: Push the brake caster to adjust the relative position of the two rolling assemblies 110, switching the brake caster to the braking state. Place the two ends of the repaired azimuth resistivity 001 on the rollers of rolling assembly 110, with the two sets of rollers abutting against the azimuth resistivity 001. Connect one end of the azimuth resistivity 001 to the variable frequency motor via a coupling, and the other end to the test host via a slip ring and connecting cable for real-time data transmission. The data is then transmitted to the RT Processing test software.

[0053] S20: Start the variable frequency motor to drive the azimuth resistivity 001 to rotate at a constant speed along its own axis. Adjust the output speed of the variable frequency motor to the operating speed that meets the azimuth resistivity 001. The operator lifts the aluminum metal baffle above the azimuth resistivity 001. The resistivity data of the aluminum metal baffle and the air measured by the azimuth resistivity 001 is transmitted to the test software RTProcessing. After data analysis, the position of the aluminum metal baffle is calculated. The operator observes the results displayed by the test host in real time to ensure that they are consistent with the actual situation.

[0054] S30: The operator repeatedly changes the position of the aluminum metal baffle and observes in real time whether the result changes displayed by the test host are consistent with the actual situation.

[0055] S40: Summarize the results of multiple experimental data and finally determine the correctness of the edge detection direction data after the azimuth resistivity 001 maintenance.

[0056] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A azimuthal resistivity rotation test device, characterized in that: include: A supporting mechanism (100), a transmission mechanism (200), a driving mechanism (300) and a test baffle (400); The azimuthal resistivity (001) is installed on the support mechanism (100), one end of which is dynamically connected to the drive mechanism (300) via the transmission mechanism (200), and the other end of which is electrically connected to the test host via a slip ring; The driving mechanism (300) is used to drive the azimuthal resistivity (001) to rotate around its own axis; The test baffle (400) is made of a material with a resistivity lower than that of air, and is arranged above the azimuthal resistivity (001).

2. The testing device according to claim 1, wherein: The driving mechanism (300) is configured as a variable frequency motor.

3. The testing device according to claim 2, wherein: The transmission mechanism (200) is configured as a coupling, one end of which is connected to the output shaft of the variable frequency motor, and the other end of which is connected to the end of the azimuthal resistivity (001).

4. The testing device according to claim 1, wherein: The support mechanism (100) includes two rolling assemblies (110); The two rolling assemblies (110) are respectively connected to the two ends of the azimuthal resistivity (001).

5. The testing device according to claim 4, characterized in that: The rolling assembly (110) includes a rolling bracket (111) and a rolling unit (112); The rolling unit (112) is mounted on the rolling bracket (111) and connected to the azimuthal resistivity (001), and is used to support the azimuthal resistivity (001).

6. The testing device according to claim 5, characterized in that: The rolling assembly (110) further comprises a brake caster and a wheel lock, wherein the brake caster is arranged at the bottom of the rolling bracket (111) and rolls on the ground.

7. The testing device according to claim 6, characterized in that: The rolling unit (112) includes a rotating frame (1121) and a rolling element (1122); The rotating frame (1121) is mounted on the rolling support (111), and the rolling element (1122) is rotatably connected to the rotating frame (1121) and is connected to the azimuthal resistivity (001); The rolling element (1122) rotates with the azimuthal resistivity (001).

8. The testing device according to claim 7, characterized in that: The rolling elements (1122) are configured as two sets of rollers; The roller axis is parallel to the axis of the azimuthal resistivity (001); The two groups of rollers are both rotatably connected to the rolling bracket (111) and simultaneously abut against the azimuth resistivity (001).

9. The testing device according to claim 7, wherein: The rolling element (1122) is configured as a bearing, and the bearing is mounted on the rotating frame (1121) and is rotatably connected to the rotating frame (1121); The azimuthal resistivity (001) is inserted into the bearing.

10. The testing device according to claim 1, wherein: The test baffle (400) is made of aluminum, iron or nickel.

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