Performance detection method, device and computer storage medium for main pump of rotary drilling rig

Abstract

The present application discloses a performance detection method, device and computer storage medium for the main pump of a rotary drilling rig, the method comprising: obtaining the corresponding working condition data of the rotary drilling rig under at least one target working condition; analyzing the dynamic response and efficiency of the main pump according to the corresponding working condition data under the target working condition, and obtaining the dynamic response characteristic parameters and efficiency parameters of the main pump under the target working condition; determining the performance index parameters of the main pump under the target working condition according to preset rules based on the dynamic response characteristic parameters and the efficiency parameters. In this way, by analyzing the dynamic response and efficiency of the main pump of the rotary drilling rig under different working conditions, the performance status of the main pump throughout its life cycle can be monitored, which not only allows a comprehensive and true understanding of the trend of the performance change of the main pump, but also allows timely detection of abnormal changes in the main pump.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to a performance detection method and device for a main pump of a rotary drilling rig, and a computer storage medium. Background Art

[0002] The main pump is the primary power transmission medium for a rotary drilling rig and the primary source of power for its hydraulic system. Therefore, its performance directly impacts the efficiency of the power unit controlled by the hydraulic system. Research on pump performance primarily focuses on control and the pump itself. Control primarily involves evaluating and testing the static, dynamic, and control characteristics of the pump using both the electronic and hydraulic control systems. Pump testing primarily analyzes the relationship between pressure and flow, pressure drop caused by inlet and outlet pressures, and the relationship between load and flow, to analyze pump performance. However, how to monitor the performance of the main pump remains an ongoing research area. Summary of the Invention

[0003] The purpose of this application is to provide a performance detection method, device and computer-readable storage medium for the main pump of a rotary drilling rig. Its advantage is that by analyzing the dynamic response and efficiency of the main pump of the rotary drilling rig under different working conditions, the performance status of the main pump throughout its life cycle can be monitored. Not only can the trend of performance changes of the main pump be fully and truly understood, but also abnormal changes in the main pump can be discovered in a timely manner.

[0004] To achieve the above objectives:

[0005] In a first aspect, an embodiment of the present application provides a method for detecting the performance of a main pump of a rotary drilling rig, the method comprising the following steps:

[0006] Obtaining operating condition data corresponding to the rotary drilling rig under at least one target operating condition;

[0007] Analyzing the dynamic response and efficiency of the main pump according to the operating condition data corresponding to the target operating condition to obtain dynamic response characteristic parameters and efficiency parameters of the main pump under the target operating condition;

[0008] According to the dynamic response characteristic parameter and the efficiency parameter, the performance index parameter of the main pump under the target working condition is determined according to a preset rule.

[0009] Optionally, the target working condition includes at least one of the following: lowering of the drill tool, drilling of the power head, lifting of the drill tool, and soil throwing; the working condition data includes at least one of the following: main pump pressure data, power head speed data, and power head pressure data.

[0010] Optionally, analyzing the dynamic response and efficiency of the main pump according to the operating condition data corresponding to the target operating condition to obtain the dynamic response characteristic parameters and efficiency parameters of the main pump under the target operating condition includes:

[0011] According to the operating condition data corresponding to the target operating condition, the peak time of the main pump under the target operating condition and the pump pressure change rate and response speed within a preset time period are obtained;

[0012] The dynamic response characteristic parameters of the main pump under the target operating condition are determined according to the peak time, the response speed and the pump pressure change rate.

[0013] Optionally, obtaining the peak time of the main pump under the target operating condition and the pump pressure change rate and response speed within a preset time period according to the operating condition data corresponding to the target operating condition includes:

[0014] According to the operating condition data corresponding to the target operating condition, the pilot action time point and the initial pump pressure value of the target operating condition, as well as the first pump pressure peak value reached after the pilot action and the corresponding peak time point are obtained;

[0015] Obtaining a peak time according to the leading action time point and the peak time point;

[0016] within a preset time period starting from the pilot action time point, determining the pump pressure change rate according to the pump pressure value at the last moment within the preset time period and the initial pump pressure value;

[0017] The response speed is determined according to the maximum pump pressure value and the initial pump pressure value within the preset time period.

[0018] Optionally, determining the dynamic response characteristic parameters of the main pump under the target operating condition according to the peak time, the response speed, and the pump pressure change rate includes:

[0019] According to the formula a=x1×P p +x2×v+x3×t p0 +b calculates the dynamic response characteristic parameter a of the main pump under the target working condition, where x1, x2 and x3 are coefficients, b is a constant, and P p is the pump pressure change rate, v is the response speed, t p0 The peak time.

[0020] Optionally, analyzing the dynamic response and efficiency of the main pump according to the operating condition data corresponding to the target operating condition to obtain the dynamic response characteristic parameters and efficiency parameters of the main pump under the target operating condition includes:

[0021] According to the working condition data corresponding to the target working condition, the power head power and the output power of the main pump under the target working condition are obtained;

[0022] The efficiency parameter of the main pump under the target working condition is determined according to the output power of the main pump and the power of the power head.

[0023] Optionally, determining the efficiency parameter of the main pump under the target operating condition according to the output power of the main pump and the power head power includes:

[0024] The power of the power head is divided by the output power of the main pump, and the quotient obtained is used as the efficiency parameter of the main pump under the target working condition.

[0025] Optionally, determining the performance index parameter of the main pump under the target working condition according to the dynamic response characteristic parameter and the efficiency parameter and a preset rule includes:

[0026] The performance index parameter p of the main pump under the target working condition is calculated according to the formula p=t1×a+t2×η+d, where t1 and t2 are coefficients, d is a constant, a is a dynamic response characteristic parameter, and η is an efficiency parameter.

[0027] In a second aspect, an embodiment of the present application provides a performance detection device for a main pump of a rotary drilling rig, comprising: a processor and a memory storing a computer program, wherein when the processor runs the computer program, the steps of the performance detection method for the main pump of the rotary drilling rig are implemented.

[0028] In a third aspect, an embodiment of the present application provides a computer-readable storage medium, in which a computer program is stored. When the computer program is executed by a processor, the steps of the performance detection method of the main pump of the rotary drilling rig are implemented.

[0029] The embodiment of the present application provides a performance detection method, device, and computer-readable storage medium for a main pump of a rotary drilling rig. The method includes: obtaining operating condition data corresponding to the rotary drilling rig under at least one target operating condition; analyzing the dynamic response and efficiency of the main pump based on the operating condition data corresponding to the target operating condition to obtain the dynamic response characteristic parameters and efficiency parameters of the main pump under the target operating condition; and determining the performance index parameters of the main pump under the target operating condition according to preset rules based on the dynamic response characteristic parameters and the efficiency parameters. In this way, by analyzing the dynamic response and efficiency of the main pump of the rotary drilling rig under different operating conditions, the performance status of the main pump throughout its life cycle can be monitored, which not only allows a comprehensive and realistic understanding of the trend of performance changes of the main pump, but also allows timely detection of abnormal changes in the main pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1A schematic flow chart of a method for detecting the performance of a main pump of a rotary drilling rig provided by an embodiment of the present invention;

[0031] Figure 2 Schematic diagram of the calculation process of dynamic response characteristics in an embodiment of the present invention;

[0032] Figure 3 Schematic diagram of the calculation process of the output efficiency of the main pump in an embodiment of the present invention;

[0033] Figure 4 Schematic diagram of performance comparison of clusters in an embodiment of the present invention;

[0034] Figure 5 Schematic diagram of performance comparison of the main pump throughout its life cycle in an embodiment of the present invention;

[0035] Figure 6 Schematic diagram of performance comparison of the main pump at different times in an embodiment of the present invention;

[0036] Figure 7 A schematic structural diagram of a performance detection device for a main pump of a rotary drilling rig provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0037] Exemplary embodiments are described in detail herein, with examples illustrated in the accompanying drawings. When the following description refers to the drawings, identical numerals in different drawings represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with this application.

[0038] It should be noted that, in this document, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, components, features, and elements with the same name in different embodiments of the present application may have the same meaning or different meanings, and their specific meanings need to be determined by their explanation in the specific embodiment or further combined with the context of the specific embodiment.

[0039] It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are merely used to distinguish information of the same type from one another. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the term "if" as used herein may be interpreted as "at the time of," "when," or "in response to a determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It should be further understood that the terms "comprising" and "including" indicate the presence of the described features, steps, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, types, and / or groups. The terms "or" and "and / or" as used herein are to be interpreted as inclusive, meaning any one or any combination. Thus, “A, B, or C” or “A, B, and / or C” means “any of: A; B; C; A and B; A and C; B and C; A, B, and C.” An exception to this definition occurs only when a combination of elements, functions, steps, or operations are inherently mutually exclusive in some manner.

[0040] It should be understood that, although the various steps in the flowchart in the embodiment of the present application are shown in sequence according to the indication of the arrows, these steps are not necessarily performed in sequence in the order indicated by the arrows. Unless clearly stated herein, the execution of these steps is not strictly limited in order, and they can be performed in other orders. Moreover, at least a portion of the steps in the figure may include multiple sub-steps or multiple stages, and these sub-steps or stages are not necessarily performed at the same time, but can be performed at different times, and their execution order is not necessarily performed in sequence, but can be performed in turn or alternately with at least a portion of other steps or sub-steps or stages of other steps.

[0041] It should be noted that in this article, step codes such as S101 and S102 are used for the purpose of expressing the corresponding content more clearly and concisely, and do not constitute a substantial limitation on the order. When implementing the step, those skilled in the art may execute S102 first and then S101, etc., but these should all be within the scope of protection of this application.

[0042] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0043] In the subsequent description, the use of suffixes such as "module", "component" or "unit" to represent elements is only for the purpose of facilitating the description of the present application and has no specific meaning. Therefore, "module", "component" or "unit" can be used interchangeably.

[0044] See Figure 1 , is a performance detection method for a main pump of a rotary drilling rig provided in an embodiment of the present application. The performance detection method for a main pump of a rotary drilling rig can be performed by a performance detection device for a main pump of a rotary drilling rig provided in an embodiment of the present application. The performance detection device for a main pump of a rotary drilling rig can be implemented in software and / or hardware. In this embodiment, the performance detection method for a main pump of a rotary drilling rig is applied to a server as an example. The performance detection method for a main pump of a rotary drilling rig provided in this embodiment includes:

[0045] Step S101: Acquire operating condition data corresponding to a rotary drilling rig under at least one target operating condition.

[0046] Specifically, the server may receive the working condition data of the rotary drilling rig under at least one target working condition sent by the rotary drilling rig or the edge computing device in real time, irregularly or periodically. Optionally, according to the different working conditions of the rotary drilling rig, the working conditions (also referred to as actions) of the rotary drilling rig during rotary drilling can be divided into drill tool lowering, power head drilling, drill tool lifting, vehicle rotation and soil throwing, etc. Since the power for the processes of drill tool lowering, power head drilling, drill tool lifting and soil throwing is provided by the main pump, only the performance of the main pump under the working conditions of drill tool lowering, power head drilling, drill tool lifting and soil throwing is considered in this embodiment. Optionally, the target working condition may include at least one of the following: drill tool lowering, power head drilling, drill tool lifting and soil throwing. The working condition data is used to characterize the working data corresponding to the rotary drilling rig under different working conditions, including at least one of the following: main pump pressure data, power head speed data and power head pressure data. The main pump pressure data may include the pressure values ​​of the main pump at different times, the power head pressure data may include the pressure values ​​of the power head at different times, and the power head speed data may include the speed of the power head at different times. Optionally, the operating condition data may also include the control current of the power head, the flow rate of the main pump, etc.

[0047] Step S102: Analyze the dynamic response and efficiency of the main pump according to the operating condition data corresponding to the target operating condition, and obtain the dynamic response characteristic parameters and efficiency parameters of the main pump under the target operating condition.

[0048] Optionally, the dynamic response characteristic parameters can be used to characterize the dynamic response characteristics of the main pump under the target operating conditions, such as whether the response speed is fast or slow, and the efficiency parameters can be used to characterize the output performance of the main pump under the target operating conditions, such as whether the efficiency is high or low.

[0049] In one embodiment, analyzing the dynamic response and efficiency of the main pump according to the operating condition data corresponding to the target operating condition to obtain the dynamic response characteristic parameters and efficiency parameters of the main pump under the target operating condition includes:

[0050] According to the operating condition data corresponding to the target operating condition, the peak time of the main pump under the target operating condition and the pump pressure change rate and response speed within a preset time period are obtained;

[0051] The dynamic response characteristic parameters of the main pump under the target operating condition are determined according to the peak time, the response speed and the pump pressure change rate.

[0052] Optionally, the peak time refers to the time required for the response to exceed the steady-state value and reach the first peak. It can also be understood as the time required for the main pump pressure to reach the first peak after exceeding the pump pressure stable value. It can be understood that when the rotary drilling rig executes the target operating condition, the main pump pressure will gradually increase and, after a certain period of time, exceed the pump pressure stable value and reach the first peak. The time from executing the target operating condition, i.e., the pilot action, to reaching the first peak is the peak time. The pump pressure change rate can be used to characterize the speed of the main pump pressure change, while the response speed can be used to characterize the speed of the response.

[0053] In one embodiment, obtaining the peak time of the main pump under the target operating condition and the pump pressure change rate and response speed within a preset time period based on the operating condition data corresponding to the target operating condition includes:

[0054] According to the operating condition data corresponding to the target operating condition, the pilot action time point and the initial pump pressure value of the target operating condition, as well as the first pump pressure peak value reached after the pilot action and the corresponding peak time point are obtained;

[0055] Obtaining a peak time according to the leading action time point and the peak time point;

[0056] within a preset time period starting from the pilot action time point, determining the pump pressure change rate according to the pump pressure value at the last moment within the preset time period and the initial pump pressure value;

[0057] The response speed is determined according to the maximum pump pressure value and the initial pump pressure value within the preset time period.

[0058] Optionally, based on the operating condition data corresponding to the target operating condition, such as the pressure data of the main pump at different times under the target operating condition, the pilot action time point and initial pump pressure value of the target operating condition, as well as the first pump pressure peak value reached after the pilot action and the corresponding peak time point can be obtained, wherein the pilot action time point of the target operating condition can be considered as the time point corresponding to the start of the rotary drilling rig to execute the target operating condition. First, after obtaining the pilot action time point and initial pump pressure value of the target operating condition, the first pump pressure peak value and the corresponding peak time point reached by the main pump can be obtained, and then the difference between the peak time point and the pilot action time point can be used as the peak time. The peak time point is the moment corresponding to the main pump reaching the first pump pressure peak, and the peak time is the time required for the main pump to reach the first pump pressure peak from the pilot action. Then, within a preset time period starting from the pilot action time point, the difference between the pump pressure value at the last moment within the preset time period and the initial pump pressure value is divided by the preset time period to obtain the pump pressure change rate. The preset duration can be set based on actual needs, such as 3 seconds, 5 seconds, etc. Next, the difference between the maximum pump pressure value within the preset duration and the initial pump pressure value is determined as the response speed. The main pump pressure may experience multiple peaks within the preset duration, and the maximum pump pressure value is the maximum peak value within the preset duration. This allows for a quick and convenient description of the main pump's dynamic response indicators, further improving the timeliness of detecting abnormal changes in the main pump.

[0059] In one embodiment, determining the dynamic response characteristic parameters of the main pump under the target operating condition based on the peak time, the response speed, and the pump pressure change rate includes:

[0060] According to the formula a=x1×P p +x2×v+x3×t p0 +b calculates the dynamic response characteristic parameter a of the main pump under the target working condition, where x1, x2 and x3 are coefficients, b is a constant, and P p is the pump pressure change rate, v is the response speed, t p0 The peak time.

[0061] Optionally, the coefficients can be set based on actual needs and can be different for different operating conditions. Thus, by analyzing the peak time, response speed, and pump pressure change rate of the rotary drilling rig under target operating conditions, the dynamic response characteristics of the main pump under the target operating conditions can be accurately and comprehensively determined, further improving the comprehensiveness and authenticity of the understanding of the main pump performance change trend.

[0062] In one embodiment, analyzing the dynamic response and efficiency of the main pump according to the operating condition data corresponding to the target operating condition to obtain the dynamic response characteristic parameters and efficiency parameters of the main pump under the target operating condition includes:

[0063] According to the working condition data corresponding to the target working condition, the power head power and the output power of the main pump under the target working condition are obtained;

[0064] The efficiency parameter of the main pump under the target working condition is determined according to the output power of the main pump and the power of the power head.

[0065] Optionally, based on the corresponding operating condition data under the target operating condition, such as the control current of the power head, the flow rate of the main pump, etc., the power of the power head and the output power of the main pump under the target operating condition can be obtained. For example, the output power of the pump during the drilling process can be calculated based on the pressure-flow characteristic curve of the pump. Specifically, after the model of the main pump is known and determined, the pressure-flow characteristic curve of the pump is relatively fixed, and then the output power of the main pump can be obtained by multiplying the pressure of the main pump by the flow rate according to the pressure-flow characteristic curve of the pump. For another example, the power of the power head can be calculated based on the relationship between the power head speed, control current and displacement. Specifically, when the corresponding relationship between the control current and the displacement is known, based on the corresponding relationship between the control current and the displacement, the displacement of the power head under the corresponding control current can be obtained, and the power of the power head can be obtained by multiplying the power head speed by the corresponding displacement.

[0066] In one embodiment, determining the efficiency parameter of the main pump under the target operating condition based on the output power of the main pump and the power head power includes: dividing the power head power by the output power of the main pump, and using the obtained quotient as the efficiency parameter of the main pump under the target operating condition. Specifically, after determining the power head power and the output power of the main pump, the quotient of the power head power divided by the output power of the main pump can be used as the efficiency parameter of the main pump under the target operating condition to characterize the output performance of the main pump under the target operating condition.

[0067] Step S103: determining the performance index parameters of the main pump under the target working condition according to the dynamic response characteristic parameters and the efficiency parameters and according to preset rules.

[0068] Optionally, since the dynamic response characteristic parameter and the efficiency parameter can respectively characterize the dynamic response characteristic and output performance of the main pump under the target operating condition, and the pump's dynamic response and efficiency can measure the pump's performance status, the performance index parameter of the main pump under the target operating condition can be determined according to preset rules based on the dynamic response characteristic parameter and the efficiency parameter. The preset rules can be set according to actual needs, such as by setting different weight coefficients for the dynamic response characteristic parameter and the efficiency parameter. In one embodiment, determining the performance index parameter of the main pump under the target operating condition according to the dynamic response characteristic parameter and the efficiency parameter according to preset rules includes: calculating the performance index parameter p of the main pump under the target operating condition according to the formula p = t1 × a + t2 × η + d, where t1 and t2 are coefficients, d is a constant, a is the dynamic response characteristic parameter, and η is the efficiency parameter. Optionally, the coefficients can be set according to actual needs and can be different for different operating conditions.

[0069] Optionally, based on the performance parameters of the main pump under target operating conditions, a performance analysis can be conducted on different rotary drilling rigs (i.e., a fleet) of the same model under the target operating conditions to determine whether a single rotary drilling rig exhibits a mismatch with the fleet, such as a fast dynamic response but low efficiency, or a slow dynamic response and low efficiency, thereby facilitating the timely identification of problematic rotary drilling rigs. Alternatively, by continuously collecting the performance parameters of the main pump under target operating conditions, it is possible to detect whether the main pump is faulty or experiencing abnormal performance degradation.

[0070] In summary, in the performance detection method of the main pump of the rotary drilling rig provided in the above embodiment, the dynamic response and efficiency of the main pump of the rotary drilling rig under different working conditions are analyzed, and then the performance status of the main pump throughout its life cycle can be monitored. Not only can the trend of the performance change of the main pump be fully and truly understood, but also abnormal changes in the main pump can be discovered in time.

[0071] Based on the same inventive concept as the above embodiments, the above embodiments are described in detail below through a specific example. In this embodiment, the pump is the main pump, the dynamic response is the dynamic response characteristic parameter, and the efficiency is the efficiency parameter.

[0072] The process of the performance detection method of the main pump of the rotary drilling rig provided in this embodiment mainly includes:

[0073] (1) Data collection and storage

[0074] Data collection: The programmable logic controller (PLC) is used to collect relevant data of the main pump, engine, power head and pilot, including main pump pressure, engine speed, engine torque, power head speed and power head inlet and outlet pressures.

[0075] Data storage: The collected data is compressed and sent back to the server for storage. The compressed file is then decompressed and integrated. After decompression, the data is stored in a distributed time series database in chronological order based on the time of data collection.

[0076] Here, when the rotary drilling rig is working, the controller or edge computing device of the rotary drilling rig can collect relevant data of the main pump, engine, power head and pilot through the programmable logic controller, and split the collected data into preset sizes for compression to obtain multiple compressed files, and then upload the compressed files to the server. After decompressing the compressed files, the server splices the decompressed files accordingly and stores them in a distributed time series database according to the time of data collection.

[0077] (2) Data analysis throughout the entire life cycle

[0078] 1) Separate data analysis:

[0079] The operating conditions of a rotary drilling rig are divided into the following actions: lowering the drill bit, drilling with the power head, raising the drill bit, vehicle rotation, and soil shedding. The power for these processes is provided by the main pump. After breaking down these actions, the following characteristic indicators are used to analyze and evaluate the main pump's operating conditions during each action. Specifically, these characteristic indicators are used to evaluate the main pump's dynamic response under different operating conditions.

[0080] Peak Time refers to the time required for the response to reach the first peak after exceeding its final value, or the time it takes for the response to reach the peak for the first time after exceeding its final value. The final value is the steady-state value. p0 =t p -t0,t p0 is the peak time, t p is the time to reach the peak, and t0 is the time when the response starts.

[0081] Peak data refers to the value corresponding to the peak time.

[0082] Steady-state value (stable data) refers to the value after the response stabilizes, that is, the value that no longer fluctuates.

[0083] Overshoot refers to the percentage of the peak value of the response exceeding the final value; σ represents the overshoot, c(t p ) represents the peak value of the response, and c(∞) represents the final value.

[0084] Response speed refers to the maximum value of the response per unit time c(t p0) and the initial response value c(t0), indicating the speed of response; where v = c(t p0 )-c(t0), v represents the response speed.

[0085] Dynamic response mainly evaluates the response speed of the entire pump system to the step signal and the performance of the pump itself. Figure 2 , the calculation process of the dynamic response characteristics in the embodiment of the present application includes:

[0086] Step S201: extracting bicycle working condition data.

[0087] Optionally, for a single rotary drilling rig, corresponding working condition data of the rotary drilling rig under any one working condition of lowering the drill tool, drilling with the power head, lifting the drill tool, and throwing away soil are extracted.

[0088] Step S202: Determine the pilot action time point and the initial pump pressure value.

[0089] Optionally, for the working condition to be analyzed, the pilot action time point, pilot initial value and initial pump pressure value for executing the working condition may be determined based on the corresponding working condition data.

[0090] Step S203: Obtain the first pump pressure peak value reached after the pilot action and the corresponding peak time point.

[0091] Optionally, the pump pressure at the first peak value reached by the pump pressure after the pilot action, ie, the first pump pressure peak value, and the peak time point corresponding to the first pump pressure peak value are obtained.

[0092] Step S204: Record the stable value of the pump pressure after the pump pressure reaches the peak value.

[0093] Optionally, after the pump pressure reaches a peak value, the position where the pump pressure tends to be stable is found, and the corresponding pump pressure value at this time is recorded, that is, the pump pressure stable value.

[0094] Step S205: Calculate the pump pressure change rate within a certain time.

[0095] Optionally, the change rate of the pump pressure within a certain time period (such as 2 seconds, 5 seconds, etc.) is calculated based on the initial pump pressure value and the final pump pressure value within a certain time period (such as 2 seconds, 5 seconds, etc.). t =P A -P B , pump pressure change rate P p =(P A -P B ) / t, and P A Indicates the pump pressure value at the last moment within a certain time t, P Brepresents the pump pressure value at the initial moment within a certain time t. In this embodiment, the pump pressure change rate in the time interval from the pilot action time point to the peak time point corresponding to the first pump pressure peak is calculated as an example. That is, the difference between the first pump pressure peak and the initial pump pressure value is first calculated, and then this difference is divided by the time it takes to reach the first pump pressure peak after the pilot action (that is, the difference between the peak time point corresponding to the first pump pressure peak and the pilot action time point) to obtain the corresponding pump pressure change rate.

[0096] Step S206: Determine the load according to the pump pressure stability value.

[0097] Optionally, the load is an interval defined based on the pump pressure under stable conditions. Since the load of the main pump is a hydraulic motor, the load is considered stable when the pump pressure tends to be stable. Therefore, in this embodiment, the stable value of the pump pressure is directly used as the load as an example.

[0098] Step S207: Determine the dynamic response characteristics of the pump under the load according to the pump pressure change rate.

[0099] Alternatively, the dynamic response characteristic of the pump can be obtained based on the comprehensive weight of peak time, response speed and pump pressure change rate, that is, the dynamic response characteristic of the pump a=x1×P p +x2×v+x3×t p0 +b, x1, x2 and x3 are coefficients, b is a constant, P p is the pump pressure change rate, v is the response speed, t p0 Under different working conditions, the coefficient can be set according to actual conditions.

[0100] See Figure 3 In the embodiment of the present application, the calculation process of the output efficiency of the main pump includes:

[0101] Step S301: extracting bicycle working condition data.

[0102] Optionally, for a single rotary drilling rig, corresponding working condition data of the rotary drilling rig under any one working condition of lowering the drill tool, drilling with the power head, lifting the drill tool, and throwing away soil are extracted.

[0103] Step S302: Calculate the output power of the pump during the drilling process according to the pressure-flow characteristic curve of the pump.

[0104] Optionally, after the model of the pump is determined, the pressure-flow characteristic curve of the pump is relatively fixed, that is, the pump pressure multiplied by the flow rate is the pump output power.

[0105] Step S303: Obtain the stable pressure value of the power head.

[0106] Optionally, according to the position where the pressure of the power head tends to be stable, the pressure value of the power head at this time is recorded as the stable pressure value of the power head.

[0107] Step S304: Calculate the power of the power head according to the relationship between the power head speed, control current and displacement.

[0108] Optionally, the control current and the power head speed are known. Based on the corresponding relationship between the control current and the displacement, the displacement of the power head under the corresponding control current can be obtained, and the power head power can be obtained by multiplying the power head speed by the corresponding displacement.

[0109] Step S305: Calculate the pump efficiency based on the power head power and the pump output power.

[0110] Alternatively, the efficiency η of the pump can be obtained by dividing the power of the power head by the output power of the pump.

[0111] Step S306: Determine the load according to the stable pressure value of the power head.

[0112] Optionally, in this embodiment, when the pressure value of the power head tends to be stable, the stable pressure value of the power head is directly used as the load.

[0113] Step S306: Calculate the change in pump efficiency under different loads.

[0114] For each operating condition, after obtaining the pump's dynamic response characteristics and efficiency, the pump performance can be calculated as p = t1 × a + t2 × η + d, where t1 and t2 are coefficients, d is a constant, a is the dynamic response characteristic parameter, and η is the efficiency parameter. These coefficients can be set based on actual conditions under different operating conditions.

[0115] 2) Cluster data analysis

[0116] The data of the machine group is to summarize the performance indicators of the single rotary drilling rigs of the same configuration and model in the system. The performance of the pumps under the lifting, lowering, drilling or soil throwing working conditions is plotted into a scatter plot based on the summarized data to observe the average performance distribution of the pumps in the machine group. The performance distribution of the single machine and the average of the performance distribution of the whole machine group are compared and analyzed to observe whether the single machine deviates from the average of the single machine, such as Figure 4 As shown, point A indicates that the equipment has a fast dynamic response but low efficiency. This may be due to a fault in the power head, resulting in low efficiency. Points B and C indicate that the equipment has a slow dynamic response and low efficiency, and there may be a fault. Point D indicates that the efficiency is very high but the response is very slow, which may be due to a fault in the valve or controller.

[0117] 3) Pump performance testing throughout the entire life cycle

[0118] By continuously collecting equipment working data, tracking the equipment's daily performance analysis data, and using time series to observe the dynamic characteristics and efficiency changes of the main pump, we can find the overall performance change trend of the equipment through continuous tracking data, such as Figure 5 shown.

[0119] 4) Comprehensive comparative analysis of pumps

[0120] When the pump performance in the fleet is consistent with Figure 4 The situation shown in point A, or the single machine timing analysis found that the pump performance suddenly dropped as shown in the following example: Figure 6 As shown, it means that the pump is also faulty or has abnormal performance degradation.

[0121] In summary, this embodiment measures pump performance from the perspectives of dynamic response and efficiency. From the perspective of fatigue damage to individual pumps, pump performance degrades over time as the equipment undergoes different operating conditions. Performance tracking throughout the pump's lifecycle reveals trends in pump performance. Comparing and analyzing the performance of equipment within a fleet with the same configuration and similar operating conditions reveals abnormal pump performance changes.

[0122] Based on the same inventive concept as the above embodiments, the embodiment of the present invention provides a performance detection device for the main pump of a rotary drilling rig, such as Figure 7 As shown, the device includes: a processor 310 and a memory 311 storing a computer program; wherein, Figure 7 The processor 310 shown in the figure is not used to indicate that the number of processors 310 is one, but is only used to indicate the positional relationship of the processor 310 relative to other devices. In actual applications, the number of processors 310 may be one or more; similarly, Figure 7 The memory 311 shown in the figure has the same meaning, that is, it is only used to refer to the positional relationship of the memory 311 relative to other components. In actual applications, the number of memories 311 can be one or more. When the processor 310 executes the computer program, the performance detection method of the main pump of the rotary drilling rig applied to the above-mentioned device is implemented.

[0123] The device may also include: at least one network interface 312. The various components in the device are coupled together via a bus system 313. It is understood that the bus system 313 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 313 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clarity, Figure 7 Various buses are labeled as bus system 313.

[0124] Memory 311 may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Non-volatile memory may include read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disk, or compact disc read-only memory (CD-ROM); magnetic surface memory may include magnetic disk memory or magnetic tape memory. Volatile memory may include random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), synchronous static random access memory (SSRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus random access memory (DRRAM).The memory 311 described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memories.

[0125] The memory 311 in the embodiment of the present invention is used to store various types of data to support the operation of the device. Examples of such data include: any computer program used to operate on the device, such as an operating system and an application; contact data; phone book data; messages; pictures; videos, etc. Among them, the operating system includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., which are used to implement various basic services and process hardware-based tasks. The application program can include various applications, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. Here, the program that implements the method of the embodiment of the present invention can be included in the application program.

[0126] Based on the same inventive concept as the above-mentioned embodiment, this embodiment also provides a computer storage medium, in which a computer program is stored. The computer storage medium can be a magnetic random access memory (FRAM), a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), a flash memory (Flash Memory), a magnetic surface memory, an optical disc, or a read-only optical disc (CD-ROM) or other memory; it can also be various devices including one or any combination of the above-mentioned memories, such as mobile phones, computers, tablet devices, personal digital assistants, etc. When the computer program stored in the computer storage medium is executed by the processor, the performance detection method of the rotary drilling rig main pump applied to the above-mentioned device is implemented. For the specific steps implemented when the computer program is executed by the processor, please refer to Figure 1 The description of the illustrated embodiment will not be repeated here.

[0127] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0128] As used herein, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion of elements other than the listed elements and may also include additional elements not specifically listed.

[0129] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A method for detecting the performance of a main pump of a rotary drilling rig, characterized in that: The method comprises: Acquire the working condition data corresponding to the rotary drilling rig under at least one target working condition; the working condition data includes main pump pressure data, power head speed data, and power head pressure data; Analyzing the dynamic response and efficiency of the main pump according to the operating condition data corresponding to the target operating condition to obtain the dynamic response characteristic parameters and efficiency parameters of the main pump under the target operating condition; Determining the performance index parameter of the main pump under the target working condition according to the dynamic response characteristic parameter and the efficiency parameter according to a preset rule; The analyzing the dynamic response and efficiency of the main pump according to the operating condition data corresponding to the target operating condition to obtain the dynamic response characteristic parameters and efficiency parameters of the main pump under the target operating condition includes: According to the working condition data corresponding to the target working condition, the pilot action time point and the initial pump pressure value of the target working condition and the first pump pressure peak value reached after the pilot action and the corresponding peak time point are obtained; Acquire the peak time according to the leading action time point and the peak time point; Within a preset time period starting from the pilot action time point, determining the pump pressure change rate according to the pump pressure value at the last moment within the preset time period and the initial pump pressure value; Determining a response speed according to the maximum pump pressure value and the initial pump pressure value within the preset time period; According to the formula a=x1×P p +x2×v+x3×t p0 +b calculates the dynamic response characteristic parameter a of the main pump under the target working condition, where x1, x2 and x3 are coefficients, b is a constant, and P p is the pump pressure change rate, v is the response speed, t p0 is the peak time; According to the working condition data corresponding to the target working condition, the power head power and the output power of the main pump under the target working condition are obtained; The power head power is divided by the output power of the main pump, and the obtained quotient is used as the efficiency parameter of the main pump under the target working condition; The step of determining the performance index parameter of the main pump under the target working condition according to the dynamic response characteristic parameter and the efficiency parameter and a preset rule includes: The performance index parameter p of the main pump under the target working condition is calculated according to the formula p=t1×a+t2×η+d, where t1 and t2 are coefficients, d is a constant, a is a dynamic response characteristic parameter, and η is an efficiency parameter.

2. The method according to claim 1, characterized in that The target working condition includes at least one of the following: lowering of the drilling tool, drilling of the power head, lifting of the drilling tool, and soil throwing.

3. A performance detection device for a main pump of a rotary drilling rig, characterized in that: include: A processor and a memory storing a computer program, when the processor runs the computer program, implements the steps of the performance detection method of the main pump of a rotary drilling rig according to any one of claims 1 to 2.

4. A computer storage medium, characterized in that: A computer program is stored, and when the computer program is executed by a processor, the steps of the performance detection method of the main pump of a rotary drilling rig according to any one of claims 1 to 2 are implemented.

Images