Universal downhole tool instrument testing system

Abstract

The invention provides a universal downhole tool instrument testing system, and relates to the technical field of instrument testing, and the system comprises an acquisition module which is used for measuring the performance function parameters of a to-be-tested downhole tool instrument; the detection module is used for monitoring the working state signal characterization quantity of the to-be-measured downhole tool instrument; the storage module is used for storing the performance function parameters and the working state signal characterization quantity; and the control module is used for controlling the acquisition module, the detection module and the storage module. The testing system provided by the invention can be used for testing under the testing conditions of high-temperature and high-pressure simulation wellbores, full-size testing wells and the like along with various types and specifications of underground tools and instruments, and related parameters in the testing process are measured and stored in real time in the whole process; and the downhole tool instrument can be driven or controlled in the testing process so as to verify the function of the downhole tool instrument.

Description

Technical Field

[0001] This invention relates to the field of instrument testing technology, and is applied to pilot testing of downhole tools and instruments in petroleum engineering. Specifically, it relates to a general-purpose downhole tool and instrument testing system. Background Technology

[0002] As oil and gas exploration and development delve deeper into complex areas such as "deep earth, deep water, unconventional, old oilfields, and new energy sources," the difficulty of stabilizing oil production, increasing gas production, and reducing costs has increased, making the demand for petroleum engineering technology more urgent than ever before. From research and development to application, petroleum engineering technology and equipment must undergo important processes including research and development, pilot testing, intermediate testing, engineering trials, and large-scale application. The intermediate testing stage is the most critical step in product development.

[0003] Major domestic and international oil companies and research institutions have invested heavily in building full-scale, full-process drilling and completion technology pilot test platforms. These platforms provide testing conditions for petroleum engineering technology products such as tools, instruments, fluids, and processes through high-temperature and high-pressure simulated wellbores and full-scale test wells. This verifies their performance, functionality, stability, and reliability, and plays an important role in accelerating the research and development and transformation of petroleum engineering technology products.

[0004] Downhole tools and instruments are tested under complex and harsh conditions, such as high-temperature and high-pressure simulated wellbores and full-scale test wells, where the objects under test cannot be directly observed. Due to the general lack of suitable testing systems for these tools and instruments, it is impossible to monitor and store phenomena and related parameters when malfunctions occur during testing. This makes it difficult to trace the root cause of problems and analyze faults after testing, hindering the provision of valuable guidance and reference for tool and instrument research and development. Even when tools and instruments function normally during testing, the lack of a testing system prevents the full-process, real-time testing and storage of parameters highly correlated with their performance and function, thus hindering in-depth testing, analysis, optimization, and certification of these tools and instruments.

[0005] To address the problems of existing technologies, this invention provides a universal downhole tool and instrument testing system. Summary of the Invention

[0006] To address the problems of existing technologies, the present invention aims to provide a universal downhole tool and instrument testing system that can conduct in-depth testing of the performance, function, stability, and reliability of downhole tools and instruments in petroleum engineering under pilot-scale testing conditions such as high-temperature and high-pressure simulated wellbore and full-size test well.

[0007] This invention provides a universal downhole tool and instrument testing system, the testing system comprising:

[0008] The data acquisition module is used to measure the performance and functional parameters of the downhole tools and instruments to be tested.

[0009] The detection module is used to monitor the working status signal characteristics of the downhole tools and instruments to be tested;

[0010] A storage module is used to store the performance function parameters and the operating status signal representation quantities;

[0011] A control module is used to control the acquisition module, the detection module, and the storage module.

[0012] According to one embodiment of the present invention, the acquisition module includes a sensor and an analog-to-digital converter.

[0013] According to one embodiment of the present invention, the sensor includes any one or any combination of a triaxial accelerometer, a triaxial magnetometer, a triaxial gyroscope, a triaxial strain gauge, a pressure sensor, and a temperature sensor.

[0014] According to one embodiment of the present invention, the detection module includes a voltage detection module and a current detection module.

[0015] According to one embodiment of the present invention, the testing system further includes a real-time clock chip for recording the measurement time of the acquisition module and the detection module.

[0016] According to one embodiment of the present invention, the testing system further includes: an interface module, which consists of a communication interface and a drive signal interface, wherein the communication interface is used to communicate with the host computer and the downhole tool instrument to be tested respectively, and the drive signal interface is used to send drive signals to the downhole tool instrument to be tested to drive the action mechanism or module of the downhole tool instrument to be tested to complete the corresponding operation.

[0017] According to one embodiment of the present invention, the test system further includes: a power supply module for converting the voltage provided by the power supply into a specific voltage value required by the test system.

[0018] According to one embodiment of the present invention, the test system further includes a monitoring chip, which is used to restart the hardware circuit when the program crashes, thereby ensuring the stable operation of the test system.

[0019] According to another aspect of the present invention, a general-purpose downhole tool and instrument testing method is also provided, performed by a system as described in any of the preceding claims, the method comprising:

[0020] Before the test begins, the performance function parameters and the types of the working status signal representation quantities are set according to the test requirements;

[0021] Connect the downhole tool / instrument to be tested to the testing system, and then take the testing system with the downhole tool / instrument into a high-temperature, high-pressure simulated wellbore and a full-size test well to conduct the test.

[0022] During the testing process, the relevant parameters of the downhole tools and instruments to be tested are collected and detected through the testing system.

[0023] After the test is completed, disconnect the electrical and mechanical connections between the test system and the downhole tool / instrument under test, read the relevant parameters stored by the test system during the test, and process and analyze them.

[0024] According to another aspect of the invention, a storage medium is also provided, which includes instructions for performing the methods described above.

[0025] This invention provides a universal downhole tool and instrument testing system, which has the following advantages compared with the prior art: This invention provides a universal downhole tool and instrument testing system that is applicable to various types and specifications of downhole tools and instruments. It can measure and store the test parameters of tools and instruments in real time and throughout the entire process under test conditions such as high temperature and high pressure simulated wellbore and full-size test well. It can provide effective support for fault analysis, performance improvement, function optimization, reliability and stability evaluation and certification of tools and instruments, greatly reduce R&D and testing costs and improve R&D and testing efficiency.

[0026] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description, claims, and drawings. Attached Figure Description

[0027] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0028] Figure 1 A structural block diagram of a general-purpose downhole tool and instrument testing system according to an embodiment of the present invention is shown;

[0029] Figure 2 A structural block diagram of a general-purpose downhole tool and instrument testing system according to another embodiment of the present invention is shown;

[0030] Figure 3 A flowchart illustrating the steps of a general-purpose downhole tool and instrument testing method according to an embodiment of the present invention is shown.

[0031] Figure 4A flowchart illustrating the steps of a general-purpose downhole tool and instrument testing method according to another embodiment of the present invention is shown.

[0032] In the accompanying drawings, the same parts use the same reference numerals. Also, the drawings are not drawn to scale.

[0033] In the attached figures, the meanings of the reference numerals are as follows: 1-Control module; 2-Acquisition module; 21-Sensor; 211-Triaxial accelerometer; 212-Triaxial magnetometer; 213-Triaxial gyroscope; 214-Triaxial strain gauge; 215-Pressure sensor; 216-Temperature sensor; 22-Analog-to-digital converter; 3-Detection module; 31-Voltage detection module; 32-Current detection module; 4-Storage module; 5-Real-time clock chip; 6-Interface module; 61-Communication interface; 62-Drive signal interface; 7-Power supply module; 8-Monitoring chip; 9-Crystal oscillator. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0035] Prior art (CN116929728A) discloses a downhole tool testing device and method. The downhole tool testing device includes multiple functional sections, including a rotation damping application section, a vibration section, and a parameter monitoring section. The rotation damping application section can be connected to the downhole tool and is used to apply damping to the downhole tool when it rotates. The vibration section can be connected to the downhole tool and is used to drive the downhole tool to vibrate. The parameter monitoring section can be connected to the downhole tool and is used to monitor test data.

[0036] The prior art (CN116427908A) relates to a testing device and method for a pipe vibration plugging tool. The testing device consists of a sample generation mechanism for preparing cement stone samples and a testing mechanism for testing the cement stone samples. The sample generation mechanism comprises a mud tank, a casing, and a pipe. The pipe is installed inside the mud tank via the casing, and the vibration plugging tool to be tested is installed inside the pipe. A mud screw pump and a cement mixing tank are installed outside the mud tank.

[0037] The prior art (CN115575030A) discloses a testing system for torque-type tools, belonging to the field of torque testing technology. It includes an identification and planning module, a testing module, an analysis module, and a server. The identification and planning module plans corresponding detection points and installs corresponding strain gauges or magnetic rings at these points. The testing module performs testing on the tool under test (DUT), adjusts the testing environment, and then tests the DUT to obtain corresponding test data, including torque and angle values. This data is then sent to the analysis module. The analysis module performs data analysis, receives the test data from the testing module, generates corresponding torque and angle change curves based on the obtained test data, matches corresponding standard values ​​to the DUT information, compares the obtained standard values, and determines whether the error is within the allowable range. If any value fails, the DUT is deemed unqualified.

[0038] The prior art (CN113324778A) discloses a downhole tool testing device, including: a downhole tool testing platform and a downhole environment simulation system; the downhole tool testing platform is configured to install downhole tools and test instruments for testing downhole tools, and the downhole environment simulation system can be connected to the downhole tools and simulate the high-temperature downhole environment to test the downhole tools.

[0039] The existing technology (Xu Haodong. Development of a multi-physical quantity testing system for vibrating screens based on configuration and virtual instruments [D]. Xi'an Petroleum University, 2023. DOI:10.27400 / d.cnki.gxasc.2023.000099.) mainly studies the following: (1) Overall design of the multi-physical quantity testing system. (2) Development of the functional modules of the virtual prototype of the testing system. (3) Construction and practical application of the virtual prototype system.

[0040] The existing technology (Wang Xi. Design of Hardware-in-the-Loop Automated Testing System for Rotary Steering Tool Controller [D]. Xi'an Petroleum University, 2023. DOI:10.27400 / d.cnki.gxasc.2023.001199.) has completed the construction of a hardware-in-the-loop automated testing system based on the functional requirements of the main controller through theoretical research, modeling and simulation, and software design. First, a Simulink model of the drilling attitude sensor and the mud downlink communication control algorithm was built, compiled, and run on a real-time target machine to simulate the seven-axis attitude signals of the actual drilling attitude sensor and the flow pulse signals of the mud downlink communication, and to verify the accuracy of its output signals. Second, the system's host computer user interface software was designed to monitor the system's operating status and display the relevant tool parameters of the main controller in real time while changing the model parameters. Finally, by configuring the system's I / O drive interface and connecting it to an industrial permanent magnet synchronous motor for the rotary steering tool, the overall system design and testing were completed.

[0041] The existing technology (Liu Keqiang, Jia Wusheng, Li Xiang. Scale and accuracy test of small-size azimuth gamma tool while drilling [J]. Complex Oil and Gas Reservoirs, 2023, 16(04): 479-483. DOI: 10.16181 / j.cnki.fzyqc.2023.04.019.) is based on the independently developed small-size azimuth gamma tool while drilling. In view of the lack of relevant equipment, methods and technical standards for the scale and accuracy test of azimuth gamma measurement tools while drilling in China, an azimuth gamma test platform was developed, a method for the scale and accuracy test of azimuth gamma measurement tools while drilling was established, and indoor experiments on the scale and accuracy test of small-size azimuth gamma tool were completed. The factors affecting the scale coefficient and the accuracy of azimuth gamma measurement were analyzed in detail, and suggestions for future technical development were put forward.

[0042] However, the aforementioned existing technologies cannot be used to conduct tests under various testing conditions such as high-temperature and high-pressure simulated wellbores and full-size test wells with various types and specifications of tools and instruments. They cannot measure and store relevant parameters throughout the testing process in real time, nor can they drive or control the tools and instruments during the testing process to verify their functions.

[0043] Based on this, the present invention provides a universal downhole tool and instrument testing system. The invention includes the system's functions and supporting conditions, hardware architecture, and functional implementation process. The testing system can conduct tests on various types and specifications of tools and instruments under conditions such as high-temperature, high-pressure simulated wellbore and full-size test wells. It measures and stores relevant parameters throughout the testing process in real time, and can drive or control the tools and instruments during testing to verify their functionality. After testing, by reading and analyzing the stored parameters, it provides effective support for fault analysis, performance improvement, functional optimization, reliability and stability evaluation, and certification of the tools and instruments, significantly reducing R&D and testing costs and improving R&D and testing efficiency.

[0044] Figure 1 A structural block diagram of a general-purpose downhole tool and instrument testing system according to an embodiment of the present invention is shown.

[0045] like Figure 1 As shown, a general-purpose downhole tool and instrument testing system includes: a control module 1, an acquisition module 2, a detection module 3, and a storage module 4. Specifically, the acquisition module 2 is used to measure the performance and functional parameters of the downhole tool and instrument under test; the detection module 3 is used to monitor the working status signal characteristics of the downhole tool and instrument under test; the storage module 4 is used to store the performance and functional parameters and the working status signal characteristics; and the control module 1 is used to control the acquisition module 2, the detection module 3, and the storage module 4.

[0046] In one embodiment, the testing system is resistant to high temperature and high pressure, meeting the testing requirements under harsh working conditions under various testing environments. Furthermore, the testing system is equipped with a variety of replaceable mechanical adapters to meet the testing needs of various specifications of downhole tools and instruments.

[0047] In one embodiment, the test system is equipped with an independent power supply, which ensures that the test system works normally during the test when testing downhole tools (without power supply) and instruments (with power supply that can be shared; if shared, instrument failure will affect the normal operation of the test system).

[0048] In one embodiment, the acquisition module 2 of the test system is equipped with various types of sensors, which can cover and measure parameters related to the performance and function of various downhole tools and instruments; and can determine specific working conditions and temperature and pressure conditions according to test requirements based on the acquired sensor signals, and then control the downhole tools and instruments to perform corresponding operations to verify their specific functions.

[0049] In one embodiment, the detection module 3 of the test system is equipped with voltage and current detection modules of different ranges and has a corresponding electrical interface, which can be adapted to a variety of instruments for monitoring the signal quantities characterizing various working states of different instruments.

[0050] In one embodiment, the test system is equipped with a high-capacity storage chip as storage module 4, which is used to record relevant measurement parameters, instrument working status, and corresponding measurement time, etc.

[0051] Figure 2 A structural block diagram of a general-purpose downhole tool and instrument testing system according to another embodiment of the present invention is shown.

[0052] like Figure 2 As shown, a general-purpose downhole tool and instrument testing system includes: a control module 1, an acquisition module 2, a detection module 3, a storage module 4, a real-time clock chip 5, an interface module 6, a power supply module 7, a monitoring chip 8, and a crystal oscillator 9.

[0053] Control module 1 uses an MCU (Microcontroller Unit), which is the core of the downhole tool and instrument testing system for control, processing, and calculation.

[0054] like Figure 2 As shown, the acquisition module 2 includes a sensor 21 and an analog-to-digital converter 22. The sensor 21 includes any one or any combination of the following: a triaxial accelerometer 211, a triaxial magnetometer 212, a triaxial gyroscope 213, a triaxial strain gauge 214, a pressure sensor 215, and a temperature sensor 216.

[0055] Sensor 21 is used to acquire raw measurement signals. After signal processing and calculation, it can obtain various parameters related to the performance and function of the downhole tool / instrument under test during the testing process. Based on this, specific working conditions and temperature and pressure conditions can be determined according to test requirements, and then the tool / instrument can be controlled to perform corresponding operations to verify its specific functions. Among them, triaxial accelerometer 211 is used to measure the triaxial acceleration and vibration of the tool / instrument during the testing process; triaxial magnetometer 212 is used to measure the triaxial magnetic field strength of the tool / instrument during the testing process; triaxial gyroscope 213 is used to measure the triaxial angular velocity and rotational speed of the tool / instrument during the testing process; triaxial strain gauge 214 is used to measure the mechanical deformation of the tool / instrument to obtain the tension, pressure, torque, etc. that the tool / instrument is subjected to during the testing process; pressure sensor 215 is used to measure the environmental pressure that the tool / instrument is subjected to during the testing process; and temperature sensor 216 is used to measure the environmental temperature that the tool / instrument is subjected to during the testing process.

[0056] The analog-to-digital converter 22 uses an ADC chip, which can be controlled by an MCU to realize the orderly acquisition of data from various sensors, and perform analog-to-digital conversion on the raw measurement signals for subsequent data processing, calculation and analysis.

[0057] like Figure 2 As shown, detection module 3 includes a voltage detection module 31 and a current detection module 32. The voltage detection module 31 and the current detection module 32 can measure voltage and current within different ranges, respectively. They connect to instruments through corresponding electrical interfaces, making them compatible with various instruments. During the testing process, they monitor the relevant operating status signals of the instruments in real time throughout the entire process. After the test, the results are combined with known test conditions to serve as a reference for instrument fault analysis, performance improvement, function optimization, reliability and stability evaluation, and certification.

[0058] Storage module 4 uses a Flash memory chip to store various measurement parameters, instrument operating status, and measurement time. After the test system finishes testing with the instrument, the stored data is read by the host computer software to process the relevant parameters of the instrument during the test, providing effective data support for fault analysis, performance improvement, function optimization, reliability and stability evaluation, and certification of the instrument.

[0059] The real-time clock chip 5 is used to record the measurement time of the acquisition module 2 and the detection module 3. Specifically, the real-time clock chip 5 uses an RTC (Real-Time Clock) to record the measurement time of relevant parameters (performance parameters) and instrument operating status (operating status signal representation quantities). This data is then combined with the corresponding test conditions for parameter analysis and performance optimization after instrument testing. Furthermore, it can determine the corresponding time nodes according to experimental requirements, thereby controlling the instrument to perform corresponding operations and verify its specific functions.

[0060] like Figure 2 As shown, the interface module 6 consists of a communication interface 61 and a drive signal interface 62. The communication interface 61 is used to communicate with the host computer and the downhole tool instrument to be tested, respectively. The drive signal interface 62 is used to send drive signals to the downhole tool instrument to be tested, so as to drive the action mechanism or module of the downhole tool instrument to be tested to complete the corresponding operation.

[0061] The communication interface 61 reserves multiple types of interfaces to meet the communication needs of different types of instruments. The test system communicates with the host computer software and the instruments through the communication interface. The test requirements are determined according to the specific test object and test plan. The host computer software configures the test system (acquiring different types of parameters and working status to characterize signal quantities at different measurement frequencies, and sending drive signals or control commands to the instruments in different ways); it receives and stores the parameters measured autonomously by the instruments; it sends control commands to the instruments according to the test requirements; and after the test is completed, the host computer software reads the relevant parameters stored in the test system through the communication interface.

[0062] The drive signal interface 62 is equipped with various types and specifications of drive signal interfaces to drive the tool's action mechanism or module according to the test requirements. Specifically, the drive signal interface 62 is controlled by an MCU and includes multiple types to meet the drive requirements of different types of tools. According to the test requirements and the configuration of the host computer software, when specific working conditions, temperature and pressure conditions, or time nodes are reached, drive signals are sent to the tool to drive the tool's action mechanism or module to complete the corresponding operation and verify the tool's specific functions.

[0063] The power supply module 7 is used to convert the voltage provided by the power supply into the specific voltage value required by the test system. Specifically, the power supply module 7 adopts a DC-DC converter to convert the voltage provided by the matching power supply into the specific voltage value required for the stable operation of the analog and digital circuits of the downhole tool and instrument test system, providing energy for the drive and operation of the hardware circuits.

[0064] Monitoring chip 8 is used to restart the hardware circuitry when the program crashes, thereby ensuring the stable operation of the test system. Specifically, monitoring chip 8 is a microprocessor monitoring chip.

[0065] Crystal 9 is used to provide clock ticks for the operation of the MCU.

[0066] This invention provides a universal downhole tool and instrument testing system. Under pilot-scale testing conditions such as high-temperature, high-pressure simulated wellbore and full-scale test wells, it conducts in-depth testing of the performance, function, stability, and reliability of downhole tools and instruments used in petroleum engineering. It is applicable to various types and specifications of downhole tools and instruments. The system measures and stores relevant parameters of the tools and instruments during the testing process. After the tools and instruments complete testing, it provides effective support for fault analysis, performance improvement, functional optimization, reliability and stability evaluation, and certification, significantly reducing R&D and testing costs and improving R&D and testing efficiency.

[0067] According to another aspect of the present invention, a universal downhole tool and instrument testing method is also provided, which is performed by a universal downhole tool and instrument testing system.

[0068] Figure 3 A flowchart illustrating the steps of a general-purpose downhole tool and instrument testing method according to an embodiment of the present invention is shown.

[0069] like Figure 3 As shown, in step S301, before the test begins, the performance function parameters and the types of working status signal representation quantities are set according to the test requirements.

[0070] like Figure 3 As shown, in step S302, the downhole tool instrument to be tested is connected to the testing system, and the testing system is carried into the high-temperature and high-pressure simulated wellbore and full-size test well along with the downhole tool instrument to be tested to carry out the test.

[0071] like Figure 3 As shown, in step S303, during the test, the relevant parameters of the downhole tool instrument to be tested are collected and detected by the test system.

[0072] like Figure 3 As shown, in step S304, after the test is completed, the electrical and mechanical connection between the test system and the downhole tool instrument to be tested is disconnected, the relevant parameters stored by the test system during the test are read, and processed and analyzed.

[0073] Figure 4 A flowchart illustrating the steps of a general-purpose downhole tool and instrument testing method according to another embodiment of the present invention is shown.

[0074] like Figure 4As shown, in step S401, the host computer software controls the test system to erase the stored data and write the real-time clock chip's real-time time. Specifically, before the downhole tool instrument begins testing, the host computer software controls the test system through the test system's communication interface 61 to erase the stored data and write the RTC real-time time, preparing the test system for testing along with the tool instrument.

[0075] like Figure 4 As shown, in step S402, the test requirements are determined, and the host computer software configures the relevant parameters of the test system's functions and operating status. Specifically, based on the specific test object and test plan, the test requirements are determined, and the host computer software configures the parameter types to be measured in this test, the types of operating status characterization signals and the corresponding voltage and current detection electrical interfaces, the parameter acquisition method (the test system actively measures or receives parameters autonomously measured by the instrument; if the instrument autonomously measures the parameters, the communication protocol and data frame definition with the instrument need to be configured to obtain and parse the corresponding parameters), measurement frequency, control commands (the communication protocol with the instrument needs to be configured) and drive signals, and the trigger control commands and drive signal methods (specific operating conditions, temperature and pressure conditions, or time nodes), etc., through the test system's communication interface 61.

[0076] like Figure 4 As shown, in step S403, the test object is connected to the test system according to the test object, the test plan, and the configuration of the test system. Specifically, according to the test object, the test plan, and the configuration of the test system, the electrical and mechanical interfaces of the test object are connected to the test system, and the test system accompanies the test object into high-temperature and high-pressure simulated wells, full-size test wells, etc., to carry out tests.

[0077] like Figure 4 As shown, in step S404, the test system conducts tests alongside the test object, measuring and storing relevant parameters of the test object to verify its functionality. Specifically, during the testing process, the test system measures and stores relevant parameters of the test object in real time according to its configuration. Based on the system's configuration, the test system determines whether specific operating conditions, temperature and pressure conditions, or time points have been met, and sends control commands or drive signals to the test object to verify its functionality.

[0078] like Figure 4As shown, in step S405, after the test is completed, the parameters stored in the test system are read, processed, and analyzed to support the optimization and evaluation of the test object. Specifically, after the test is completed, the electrical and mechanical connections between the test system and the test object are disconnected. The host computer software reads the relevant parameters stored by the test system during the test through the communication interface 61, processes and analyzes the parameters, and provides effective support for the fault analysis, performance improvement, functional optimization, reliability and stability evaluation, and certification of the test object.

[0079] This invention provides real-time measurement and storage of parameters related to the performance and function of downhole tools during the entire testing process. After the test, the relevant parameters are read by the host computer software, and data analysis is performed in combination with known test conditions. This data serves as a guide and basis for tool failure analysis, performance improvement, function optimization, reliability and stability evaluation, and certification.

[0080] This invention provides a complete, real-time measurement and storage of parameters related to the performance and function of downhole instruments, as well as the signal quantities representing the instrument's working status during testing. After the test, the relevant parameters and signal quantities representing the working status are read by the host computer software, and data analysis is performed in conjunction with known test conditions. This data serves as a guide and basis for instrument fault analysis, performance improvement, function optimization, reliability and stability evaluation, and certification.

[0081] Before the testing system provided by this invention enters the high-temperature and high-pressure simulated wellbore or full-size test well with the tool, it presets control commands. When the tool cannot be controlled in real time due to the limitations of the testing conditions, the testing system sends a drive signal to the tool under specific working conditions, temperature and pressure conditions or time nodes to drive the tool's action mechanism or module to complete the corresponding operation and verify the tool's specific functions.

[0082] Before the testing system provided by this invention enters the high-temperature and high-pressure simulated well or full-size test well with the instrument, preset control commands are provided. When the instrument cannot be controlled in real time due to the limitations of the testing conditions, the testing system sends preset control commands to the instrument under specific working conditions, temperature and pressure conditions or time nodes. After receiving the commands, the instrument completes the corresponding operations to verify the specific functions of the instrument.

[0083] The universal downhole tool and instrument testing system provided by this invention can also be used with a computer-readable storage medium. The storage medium stores a computer program, which is executed to run a universal downhole tool and instrument testing method. The computer program can execute computer instructions, which include computer program code. The computer program code can be in the form of source code, object code, executable file, or some intermediate form.

[0084] Computer-readable storage media can include: any entity or device capable of carrying computer program code, recording media, USB flash drives, portable hard drives, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0085] It should be noted that the contents of computer-readable storage media may be appropriately added to or subtracted from the contents according to the requirements of legislation and patent practice in a jurisdiction. For example, in some jurisdictions, according to legislation and patent practice, computer-readable storage media may not include electrical carrier signals and telecommunication signals.

[0086] Taking the well completion packer tool as an example, the test conditions are to carry out a temperature and pressure resistance dynamic load test on it in a high temperature and high pressure simulated wellbore, and the general-purpose downhole tool and instrument testing system is tested along with the well completion packer. Before the test begins, the host computer software erases the data stored in the previous test and writes real-time time to mark the measurement time of each parameter during the test. The host computer software then configures the test system according to the test requirements, determining the types of parameters to be measured in this test (the tensile force, compressive force, torque, ambient pressure, and ambient temperature that the well completion packer withstands during the dynamic load test are to be measured to evaluate the performance of the well completion packer under high temperature and high pressure conditions), and the frequency of measuring each parameter (the raw sensor data is stored in real-time after measurement). The test system is mechanically connected to the well completion packer and enters the high temperature and high pressure simulated wellbore for testing. During the test, the test system periodically measures and stores the relevant parameters of the well completion packer according to the configuration. After the test, the host computer software reads the parameters stored in the test system, processes and analyzes them, and evaluates the performance, reliability, and stability of the well completion packer under high temperature and high pressure dynamic load test conditions.

[0087] Taking the high-temperature drilling fluid pulse MWD instrument as an example, the test conditions are as follows: a full-size test well is drilled to test the instrument, and a general-purpose downhole tool and instrument testing system is tested along with the high-temperature MWD. ​​Before the test begins, the host computer software erases the data stored in the previous test and writes the real-time time to mark the measurement time of each parameter during the test. The host computer software then configures the test system according to the test requirements, determining the types of parameters to be measured in this test (in the actual drilling test, the high-temperature MWD's triaxial acceleration, triaxial magnetic field strength, triaxial angular velocity, pressure, and temperature need to be tested independently to compare and evaluate the accuracy and stability of the parameters measured by the high-temperature MWD's matching measurement sub, the stability and reliability of the high-temperature MWD's encoded transmission, etc.), the high-temperature MWD's working status characterization signals (input voltage, output current, pulse drive, etc.) and corresponding interfaces, the frequency of each parameter measurement (after the measurement is completed, the original data collected by the sensor, voltage detection module, current detection module, etc. are stored in real time), and the trigger control command method (such as setting the instrument's delayed start time to estimate the instrument's performance). The time from the start of drilling to the bottom of the well is used as a delayed start-up time to reduce testing costs. After the delayed start-up time is reached, the testing system sends a start-up command to the high-temperature MWD. ​​The downhole conditions are judged in real time based on measured sensor data. Under different conditions such as sliding drilling, composite drilling, and directional drilling, the testing system can send commands to the high-temperature MWD to transmit different types of data frames and corresponding control commands. The testing system and the high-temperature MWD are electrically and mechanically connected, and the system is inserted into a full-size test well for actual drilling testing. During the test, the testing system periodically measures and stores the relevant parameters of the high-temperature MWD according to the configuration and sends corresponding control commands. After the test, the host computer software reads the parameters stored in the testing system, processes and analyzes the parameters in conjunction with the formation, well depth, real-time operating conditions, etc., and evaluates the performance, function, reliability, and stability of the high-temperature MWD during the actual drilling test.

[0088] In summary, this invention provides a universal downhole tool and instrument testing system, which has the following advantages compared with the prior art: This invention provides a universal downhole tool and instrument testing system that is applicable to multiple types and specifications of downhole tools and instruments. It can perform full-process, real-time measurement and storage of test parameters of tools and instruments under test conditions such as high-temperature and high-pressure simulated wellbore and full-size test well. It can provide effective support for fault analysis, performance improvement, function optimization, reliability and stability evaluation, and certification of tools and instruments, significantly reducing R&D and testing costs and improving R&D and testing efficiency.

[0089] It should be understood that the embodiments disclosed herein are not limited to the specific structures, processing steps, or materials disclosed herein, but should be extended to equivalent substitutions of these features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0090] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship 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. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0091] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0092] Certain terms are used throughout this application to refer to specific system components. As those skilled in the art will recognize, the same components may often be referred to by different names, and therefore this application is not intended to distinguish those components that differ only in name and not in function. In this application, the terms “comprise,” “include,” and “have” are used in an open-ended manner and should therefore be interpreted as meaning “including, but not limited to…”. Furthermore, the terms “substantially,” “materially,” or “approximately” as used herein refer to industry-accepted tolerances for the corresponding terms. The term “coupling,” as may be used herein, includes direct coupling and indirect coupling via additional components, elements, circuits, or modules, wherein, for indirect coupling, the intermediate component, element, circuit, or module does not alter the information of the signal but may adjust its current level, voltage level, and / or power level. Inferred coupling (e.g., one element is inferredly coupled to another element) includes direct and indirect coupling between two elements in the same manner as “coupling.”

[0093] The phrase "an embodiment" or "an embodiment" used in this specification means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the invention. Therefore, the phrase "an embodiment" or "an embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment.

[0094] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

[0095] While the embodiments disclosed in this invention are as described above, the content is merely for the purpose of facilitating understanding of the invention and is not intended to limit the invention. Any person skilled in the art to which this invention pertains may make any modifications and variations in form and detail of the implementation without departing from the spirit and scope disclosed herein; however, the scope of patent protection for this invention shall still be determined by the scope defined in the appended claims.

Claims

1. A universal downhole tool and instrument testing system, characterized in that, The testing system includes: The data acquisition module is used to measure the performance and functional parameters of the downhole tools and instruments to be tested. The detection module is used to monitor the working status signal characteristics of the downhole tools and instruments to be tested; A storage module is used to store the performance function parameters and the operating status signal representation quantities; A control module is used to control the acquisition module, the detection module, and the storage module.

2. The universal downhole tool and instrument testing system as described in claim 1, characterized in that, The acquisition module includes sensors and an analog-to-digital converter.

3. The universal downhole tool and instrument testing system as described in claim 2, characterized in that, The sensor includes any one or any combination of a triaxial accelerometer, a triaxial magnetometer, a triaxial gyroscope, a triaxial strain gauge, a pressure sensor, and a temperature sensor.

4. A general-purpose downhole tool and instrument testing system as described in any one of claims 1-3, characterized in that, The detection module includes a voltage detection module and a current detection module.

5. A general-purpose downhole tool and instrument testing system as described in any one of claims 1-4, characterized in that, The testing system also includes a real-time clock chip, which is used to record the measurement time of the acquisition module and the detection module.

6. A general-purpose downhole tool and instrument testing system as described in any one of claims 1-5, characterized in that, The testing system also includes an interface module, which consists of a communication interface and a drive signal interface. The communication interface is used to communicate with the host computer and the downhole tool / instrument under test, respectively. The drive signal interface is used to send drive signals to the downhole tool / instrument under test to drive the action mechanism or module of the downhole tool / instrument under test to complete the corresponding operation.

7. A general-purpose downhole tool and instrument testing system as described in any one of claims 1-6, characterized in that, The test system also includes a power supply module, which converts the voltage provided by the power supply into a specific voltage value required by the test system.

8. A general-purpose downhole tool and instrument testing system as described in any one of claims 1-7, characterized in that, The testing system also includes a monitoring chip, which is used to restart the hardware circuit when the program crashes, thereby ensuring the stable operation of the testing system.

9. A general-purpose testing method for downhole tools and instruments, characterized in that, The method, performed by the system as described in any one of claims 1-8, comprises: Before the test begins, the performance function parameters and the types of the working status signal representation quantities are set according to the test requirements; Connect the downhole tool / instrument to be tested to the testing system, and then take the testing system with the downhole tool / instrument into a high-temperature, high-pressure simulated wellbore and a full-size test well to conduct the test. During the testing process, the relevant parameters of the downhole tools and instruments to be tested are collected and detected through the testing system. After the test is completed, disconnect the electrical and mechanical connections between the test system and the downhole tool / instrument under test, read the relevant parameters stored by the test system during the test, and process and analyze them.

10. A storage medium, characterized in that, It contains instructions for performing the method as described in claim 9.

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