Drilling rig inspection system and method

Abstract

The present invention discloses a drilling rig inspection system and method, which relates to the technical field of drilling rig inspection. The present application effectively avoids the waste of resources caused by excessive inspection and the hidden dangers of drill bit failure caused by insufficient inspection, and obtains coating information in an all-round and multi-dimensional manner from microscopic molecular structure changes and chemical bond vibrations to macroscopic internal coating defect detection. Then, through the evaluation model calculation, an accurate coating evaluation value result is obtained to clearly judge whether the coating needs to be recoated. After determining that the coating needs to be recoated, the key environmental adaptability indicators are quickly locked, and then an accurate evaluation value is calculated. According to the evaluation results, the coating wear state is subdivided into normal wear and corrosive wear, and different strategies are implemented respectively.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling rig inspection, and in particular to a drilling rig inspection system and method. Background Art

[0002] In today's drilling engineering field, with the continuous expansion of mining depth and the increasingly complex working environment, extremely high requirements are placed on the performance and maintenance management of drilling rig drill bit coatings, which has become a key driving factor for the birth of the drilling rig inspection system. As a key line of defense to protect the drill bit and extend its service life, the drill bit coating is subjected to multiple tests under complex working conditions. Therefore, a drilling rig inspection system and method is needed.

[0003] Prior art, such as the invention patent application with announcement number: CN115288663A, discloses a method for automatic layered cataloging and drilling process supervision of rock and soil bodies, including: installing or embedding a sensor unit and a data acquisition device on a drilling rig; monitoring and recording drill displacement, drilling rig hydraulic oil pressure, drill rod speed and drilling time, and dividing the auxiliary process and the pure drilling process; making a drilling depth-time curve of the pure drilling process, and resetting the acquisition interval time; identifying the drilling speed turning point on the drilling depth-time curve of the pure drilling process; determining the drilling depth interval and the corresponding drilling speed between two adjacent turning points, and completing the automatic layered cataloging of the rock and soil bodies; analyzing the data collected in the auxiliary process, eliminating possible data falsification problems, and completing the drilling process supervision of the rock and soil bodies. This invention patent overcomes the shortcomings of traditional manual cataloging of drilling holes, and achieves the purpose of automatically layering and cataloging and supervising the formation during the drilling process by analyzing the drilling displacement, drilling rig hydraulic oil pressure, drill rod speed and drilling time.

[0004] In view of the above scheme, the inventor of the present application found that the above technology has at least the following technical problems: 1. Most of the existing technologies lack a detailed analysis of the lithology of the formation in the target drilling rig operation area. Often a unified and fixed inspection cycle and mode are adopted, without fully considering the huge differences in key factors such as formation hardness, mineral composition, pH, etc. in different regions. This easily leads to excessive inspections in soft rock formations and areas where drill bit wear is relatively slow, wasting a lot of manpower, material resources and time costs; and in harsh working conditions such as hard rock and highly corrosive formations, due to insufficient inspections, the rapid deterioration of the drill bit coating cannot be detected in time, which greatly increases the risk of sudden failure of the drill bit and seriously affects the continuity of the drilling operation. In some mountain mines, the formation changes are complex. The existing technology may be implemented according to the conventional monthly inspection plan. For some local areas with extremely high hardness and high quartz content, the drill bit coating may be severely worn within half a month, but it is not discovered in time. The problem is not known until the drill bit fails, resulting in unnecessary downtime and equipment replacement costs.

[0005] 2. Traditional methods are relatively simple in evaluating the status of drill bit coatings. Either they rely solely on simple visual inspections of the appearance, which can only reveal macroscopic defects such as coating peeling and obvious scratches, but are completely unaware of microscopic problems such as fine cracks and pore growth inside the coating, and failure of functional components due to changes in chemical bonds; or they use some basic hardness measurements and thickness tests, which cannot fully reflect the changes in the comprehensive performance of the coating. Taking offshore oil drilling as an example, the strong corrosiveness of seawater and the complex formation stress environment make it very easy for tiny cracks to form inside the drill bit coating. Existing technologies are difficult to detect these hidden dangers, and cannot warn in advance that the coating is about to fail, which in turn causes increased corrosion of the drill bit and loss of control due to wear. Frequent replacement of drill bits is not only costly, but also delays the construction period.

[0006] 3. The existing technology lacks the ability to determine whether the drill bit coating needs to be re-coated. The existing technology generally performs simple processing based on experience or a limited number of conventional materials. For drill bits with normal wear, the re-coating composition is not optimized in advance to prevent potential risks in light of the changes in the formation environment that may occur in the future. Instead, conventional repairs are performed, resulting in a short subsequent service life of the drill bit, which will soon require maintenance again. In the face of corrosion and wear, the anti-corrosion measures of the existing technology lack specificity.

[0007] 4. Existing technologies rarely systematically collect and organize various types of data before and after each recoating and during drilling operations, let alone in-depth analysis using data mining and machine learning technologies. This makes the recoating plan, process parameters, and inspection and evaluation methods in a fixed and rigid state for a long time, and cannot be dynamically adjusted with factors such as changes in the formation environment and improvements in drill bit materials. In a long-term large-scale drilling project, the formation conditions change with depth, from shallow soft soil to deep hard shale and high-temperature hydrothermal areas. Existing technologies cannot provide intelligent decisions for subsequent drill bit coating maintenance based on the data accumulated in the early stage. They can only repeat inefficient operations and cannot achieve continuous improvement in the level of drill bit coating maintenance management, making it difficult to ensure long-term stable and efficient advancement of drilling operations. Summary of the invention

[0008] In view of the above-mentioned technical deficiencies, the object of the present invention is to provide a drilling rig inspection system and method.

[0009] In order to solve the above-mentioned technical problems, the present invention adopts the following technical solutions: In the first aspect, the present invention provides a drilling rig inspection system, including: a drill bit coating inspection plan formulation module: used to obtain the formation lithology data corresponding to the target drilling rig operating area, so as to analyze and obtain the formation lithology assessment value corresponding to the target drilling rig operating area, and then match the inspection plan corresponding to the target drilling rig drill bit coating according to the formation lithology assessment value interval corresponding to each drilling rig drill bit coating inspection plan in the database.

[0010] Drill bit coating inspection and evaluation module: It is used to collect the Raman spectrum characteristics and ultrasonic detection characteristics corresponding to each collection point in the target drill bit coating according to each collection time point in the inspection plan, and then evaluate whether the target drill bit coating needs to be re-coated at each collection time point.

[0011] Drill bit recoating scheme adjustment module: used to analyze the target drill bit recoating composition scheme at a certain acquisition time point when the target drill bit coating needs to be recoated at the acquisition time point.

[0012] Preferably, the inspection plan for the target drilling rig drill bit coating is analyzed, and the specific analysis process is as follows: the formation lithology assessment value corresponding to the target drilling rig operating area is compared with the formation lithology assessment value interval corresponding to each drilling rig drill bit coating inspection plan in the database; if the formation lithology assessment value corresponding to the target drilling rig operating area is within the formation lithology assessment value interval corresponding to a drilling rig drill bit coating inspection plan in the database, then the drilling rig drill bit coating inspection plan in the database is used as the inspection plan corresponding to the target drilling rig drill bit coating.

[0013] Preferably, the evaluation of whether the target drill bit coating at each acquisition time point needs to be recoated is performed by the following specific evaluation process: Q1. Obtaining the Raman spectrum feature evaluation value and the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point, and inputting the Raman spectrum feature evaluation value and the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point into a drill bit coating evaluation value analysis model, and outputting the drill bit coating evaluation value result corresponding to the target drill bit at each acquisition time point.

[0014] Q2. The drill bit coating evaluation value results include values ​​of 1 and -1. When the coating evaluation value result corresponding to the target drill bit at a certain acquisition time point is 1, it indicates that the target drill bit coating at the acquisition time point does not need to be recoated. Conversely, when the coating evaluation value result corresponding to the target drill bit at a certain acquisition time point is -1, it indicates that the target drill bit coating at the acquisition time point needs to be recoated.

[0015] Preferably, the Raman spectrum feature evaluation value and the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point are obtained, and the specific acquisition process is as follows: W1. Obtain the Raman spectrum features and the ultrasonic detection features corresponding to each acquisition point in the target drill bit coating at each acquisition time point, the Raman spectrum features include Raman shift, characteristic peak intensity and half-peak width, and the ultrasonic detection features include reflection wave duration, reflection wave amplitude and phase change value.

[0016] W2, input the Raman shift, characteristic peak intensity and half-peak width corresponding to each acquisition point in the target drill bit coating at each acquisition time point into the Raman spectrum characteristic evaluation value analysis model, output the Raman spectrum characteristic evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point, and record the Raman spectrum characteristic evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point as , where y represents the number corresponding to each acquisition time point, y is a positive integer, and m represents the number corresponding to each acquisition point, m is a positive integer.

[0017] W3, input the reflection wave duration, reflection wave amplitude and phase change value corresponding to each acquisition point in the target drill bit coating at each acquisition time point into the ultrasonic detection feature evaluation value analysis model, output the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point, and record the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point as .

[0018] Preferably, the drill bit recoating scheme adjustment module further includes an environmental adaptability index acquisition unit and an environmental adaptability evaluation value analysis unit.

[0019] The environmental adaptability index acquisition unit is used to obtain the environmental adaptability index corresponding to the target drill bit coating at a certain acquisition time point when the target drill bit coating needs to be recoated at the acquisition time point. The environmental adaptability index includes abrasive wear rate, ceramic oxide content ratio and antioxidant weight gain rate.

[0020] The environmental adaptability evaluation value analysis unit is used to analyze and obtain the environmental adaptability evaluation value corresponding to the target drilling rig drill bit coating at the collection time point according to the environmental adaptability index corresponding to the target drilling rig drill bit coating at the collection time point.

[0021] Preferably, the target drill bit coating composition scheme at the acquisition time point is analyzed, and the specific analysis process is as follows: E1. The environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point is compared with the environmental adaptability evaluation value corresponding to the set standard drill bit coating. If the environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point is less than or equal to the environmental adaptability evaluation value corresponding to the set standard drill bit coating, the target drill bit coating at the acquisition time point is recorded as normal wear; if the environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point is greater than the environmental adaptability evaluation value corresponding to the set standard drill bit coating, the target drill bit coating at the acquisition time point is recorded as corrosive wear.

[0022] E2. If the target drill bit coating is recorded as normal wear at the collection time point, a refined maintenance recoating strategy is adopted, and an appropriate amount of anti-sulfide corrosion component is added to the recoating composition in advance, accounting for 1%-3%, and 1.5% zinc molybdate is added. At the same time, an organic silane coupling agent is used in combination, accounting for 0.5%-1%.

[0023] E3. If the target drill bit coating is recorded as corrosive wear at the collection time point, a high-intensity restorative recoating program will be immediately initiated. In addition to adopting a refined maintenance recoating strategy based on normal wear, organic polymer materials such as polyacrylates need to be added, accounting for 3%-5%. At the same time, based on the existing anti-corrosion components, the combination is further optimized to use aluminum oxide, titanium oxide and rare earth element oxides in a coordinated manner.

[0024] In a second aspect, the present invention provides a drilling rig inspection method, comprising: step one, formulation of a drill bit coating inspection plan: obtaining the formation lithology data corresponding to the target drilling rig operating area, thereby analyzing and obtaining the formation lithology assessment value corresponding to the target drilling rig operating area, and then matching the inspection plan corresponding to the target drilling rig drill bit coating according to the formation lithology assessment value interval corresponding to each drilling rig drill bit coating inspection plan in the database.

[0025] Step 2: Evaluation of drill bit coating inspection: Collect Raman spectral features and ultrasonic detection features corresponding to each collection point in the target drill bit coating at each collection time point in the inspection plan, and then evaluate whether the target drill bit coating needs to be re-coated at each collection time point.

[0026] Step 3: Adjustment of drill bit recoating scheme: When the target drill bit coating needs to be recoated at a certain acquisition time point, the target drill bit recoating composition scheme at the acquisition time point is analyzed.

[0027] The beneficial effects of the present invention are as follows: 1. The embodiment of the present invention, through the drill bit coating inspection plan formulation module, uses the acquired detailed stratum lithology data of the target drilling rig operation area, and uses scientific calculation formulas to obtain stratum lithology assessment values. It is accurately matched with the inspection plan interval in the database. This application effectively avoids the waste of resources caused by excessive inspections and the hidden dangers of drill bit failure caused by insufficient inspections, ensuring that the inspection activities are efficient and targeted. In a complex mining area, the stratum lithology in different areas varies greatly, some strata have high hardness and strong acidity, and some strata have more soft rocks and high alkalinity. Using this system, the drilling rig can obtain accurately adapted inspection frequencies and key inspection site planning based on the stratum characteristics of its specific location, greatly improving the pertinence of the inspection.

[0028] 2. In the embodiment of the present invention, the drill bit coating inspection and evaluation module collects Raman spectral features and ultrasonic detection features at predetermined collection time points according to a strict process. From microscopic molecular structure changes and chemical bond vibrations to macroscopic internal coating defect detection, the coating information is acquired in an all-round and multi-dimensional manner. Then, through the evaluation model calculation, an accurate coating evaluation value result is obtained to clearly determine whether the coating needs to be recoated. Taking a deep-sea drilling project as an example, the drilling rig faces an extreme environment of high pressure, low temperature, and strong corrosion, and the state of the drill bit coating changes rapidly. The inspection and evaluation module can monitor the coating condition in real time and accurately, discover potential problems in a timely manner, provide a reliable basis for subsequent maintenance decisions, and effectively ensure the continuity of drilling operations.

[0029] 3. In the embodiment of the present invention, the environmental adaptability index acquisition unit of the drill bit recoating scheme adjustment module and the environmental adaptability evaluation value analysis unit work closely together. After determining that the coating needs to be recoated, the key environmental adaptability index is quickly locked, and then an accurate evaluation value is calculated. The coating wear state is subdivided into normal wear and corrosive wear according to the evaluation results, and different strategies are implemented respectively. For normal wear, the refined maintenance recoating strategy takes into account the corrosion risks that may be encountered in the future, and adds an appropriate amount of anti-sulfide corrosion components in advance to ensure that the components are evenly dispersed and active. Without affecting the current working performance, the service life of the drill bit is extended and the maintenance cost is reduced. When in corrosive wear, the high-strength restorative recoating scheme is fully opened. On the one hand, anti-corrosion components such as polyacrylates are accurately added to build a strong anti-corrosion defense line; on the other hand, innovation is made in terms of process, and intelligent spray monitoring and precise sintering control are used in a two-pronged approach to ensure the density and quality of the coating. At the same time, multi-factor accelerated corrosion tests are combined with on-site real-time monitoring optimization, and the recoating plan is continuously improved, so that the drill bit can quickly recover and maintain excellent corrosion and wear resistance for a long time, adapt to various harsh working conditions, and greatly improve the overall operating efficiency and economic benefits of the drilling rig. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0031] Figure 1 This is a schematic diagram of the connection of system modules of the present invention;

[0032] Figure 2 It is a schematic diagram of the steps of the method of the present invention;

[0033] Figure 3 The present invention is a flowchart of the steps for implementing the method. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiments of the present invention Figure 1-3 As shown, a drilling rig inspection system includes: a drill bit coating inspection plan formulation module, a drill bit coating inspection evaluation module, a drill bit recoating plan adjustment module and a database.

[0036] It should be noted that the database is used to store the formation lithology assessment value intervals corresponding to the drill bit coating inspection plan of each drilling rig.

[0037] The drill bit coating inspection and evaluation module is connected to the drill bit coating inspection plan formulation module and the drill bit recoating plan adjustment module respectively, and the database is connected to the drill bit coating inspection plan formulation module.

[0038] Drill bit coating inspection plan formulation module: used to obtain the formation lithology data corresponding to the target drilling rig operating area, so as to analyze and obtain the formation lithology assessment value corresponding to the target drilling rig operating area, and then match the inspection plan corresponding to the target drilling rig drill bit coating according to the formation lithology assessment value interval corresponding to the drill bit coating inspection plan of each drilling rig in the database.

[0039] In a specific embodiment, the analysis obtains the formation lithology assessment value corresponding to the target drilling rig operation area. The specific analysis process is as follows: obtain the formation lithology data corresponding to the target drilling rig operation area, the formation lithology data includes the hardness value, mineral component content and pH value corresponding to each type of rock, and record the hardness value, mineral component content and pH value corresponding to each type of rock in the target drilling rig operation area as , and , v represents the number corresponding to each type of rock, v is a positive integer, z represents the number corresponding to each stratum, z is a positive integer, substitute into the calculation formula: The formation lithology assessment value corresponding to the target drilling rig operation area is obtained , where q is the collection of all types of rocks, w is the collection of all strata, , , They are the standard hardness values, standard mineral content, and standard pH values ​​of various types of rocks corresponding to the set drilling rig operation area. , , They are the weight factors corresponding to the hardness values ​​of various types of rocks in the set drilling rig operation area, the weight factors corresponding to the mineral content, and the weight factors corresponding to the pH of each formation. , , They are the adjustment factors corresponding to the hardness values ​​of various types of rocks in the set drilling rig operation area, the adjustment factors corresponding to the mineral content, and the adjustment factors corresponding to the pH of each formation. , , They are the hardness value difference of each type of rock corresponding to the set permitted drilling rig operation area, the permitted mineral component content difference, and the standard pH difference corresponding to each permitted formation.

[0040] It should be noted that a certain number of geological exploration drilling holes are carried out in advance around the target drilling rig operation area, and professional hardness testing equipment, such as Mohs hardness tester and Vickers hardness tester, are used to measure the hardness of core samples according to different rock layers to obtain the hardness values ​​corresponding to each type of rock. The seismic wave detection method is used to emit artificial seismic waves into the underground, and the stratigraphic structure and rock characteristics are inferred by receiving the characteristics of the reflected seismic wave signals. Different rock types have different propagation speeds and attenuation degrees for seismic waves. Based on these differences, the distribution of rock types in the stratum can be roughly determined. Further, combined with the known database information such as rock hardness and mineral composition, the corresponding hardness value and mineral composition content can be estimated. The downhole spectrometer is used to perform real-time spectral analysis on the rock fragments broken by the drill bit. According to the unique spectral characteristics of different minerals, the mineral composition is identified, and the mineral composition content is estimated through the built-in algorithm. The built-in algorithm used by the downhole spectrometer in the process of real-time spectral analysis of the rock fragments broken by the drill bit, identifying the mineral composition and estimating the mineral composition content, whether it is the spectral preprocessing algorithm, the mineral composition identification algorithm or the mineral composition content estimation algorithm, is developed based on the existing mature, widely recognized and verified technologies. These algorithms have a deep application foundation, a large number of practical cases and scientific theoretical support in their respective related fields, so they can be directly applied to the mineral composition analysis work in the downhole environment, reliably and efficiently achieve the purpose of estimating the mineral composition content, and provide strong data support for related drilling projects, geological research, etc.

[0041] It should also be noted that , , Both are greater than 0 and less than 1.

[0042] In another specific embodiment, the inspection plan for the target drilling rig drill bit coating is analyzed, and the specific analysis process is as follows: the formation lithology assessment value corresponding to the target drilling rig operating area is compared with the formation lithology assessment value interval corresponding to each drilling rig drill bit coating inspection plan in the database; if the formation lithology assessment value corresponding to the target drilling rig operating area is within the formation lithology assessment value interval corresponding to a drilling rig drill bit coating inspection plan in the database, the drilling rig drill bit coating inspection plan in the database is used as the inspection plan corresponding to the target drilling rig drill bit coating.

[0043] Drill bit coating inspection and evaluation module: It is used to collect the Raman spectrum characteristics and ultrasonic detection characteristics corresponding to each collection point in the target drill bit coating according to each collection time point in the inspection plan, and then evaluate whether the target drill bit coating needs to be re-coated at each collection time point.

[0044] In a specific embodiment, the evaluation of whether the target drill bit coating at each acquisition time point needs to be recoated is performed as follows: Q1. Obtain the Raman spectrum feature evaluation value and the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point, and input the Raman spectrum feature evaluation value and the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point into the drill bit coating evaluation value analysis model, and output the drill bit coating evaluation value result corresponding to the target drill bit at each acquisition time point.

[0045] Q2. The drill bit coating evaluation value results include values ​​of 1 and -1. When the coating evaluation value result corresponding to the target drill bit at a certain acquisition time point is 1, it indicates that the target drill bit coating at the acquisition time point does not need to be recoated. Conversely, when the coating evaluation value result corresponding to the target drill bit at a certain acquisition time point is -1, it indicates that the target drill bit coating at the acquisition time point needs to be recoated.

[0046] In another specific embodiment, the Raman spectrum feature evaluation value and the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point are obtained, and the specific acquisition process is as follows: W1. Obtain the Raman spectrum features and the ultrasonic detection features corresponding to each acquisition point in the target drill bit coating at each acquisition time point, the Raman spectrum features include Raman shift, characteristic peak intensity and half-peak width, and the ultrasonic detection features include reflection wave duration, reflection wave amplitude and phase change value.

[0047] It should be noted that at the scheduled collection time, after the drilling rig is shut down, the Raman spectrometer probe is quickly aligned with each collection point of the drill bit coating. The selection of collection points should follow the principle of uniform distribution, focus on areas prone to wear, and areas where abnormalities are found in the previous test. To reduce the interference of ambient light, a light shield can be set around the probe or the test can be carried out in a darkroom environment. During the collection process, the quality of the spectral signal is monitored in real time to ensure that the baseline is stable and the peak shape is complete. If the signal noise is found to be too large, check whether the probe is in good contact with the coating and whether the ambient light is shielded in place, and re-collect if necessary. Take the average value as the Raman spectral characteristic data of the point, including Raman shift, characteristic peak intensity and half-peak width, to improve the reliability of the data, and fit the ultrasonic transducer tightly to the surface of the drill bit coating through a coupling agent. The coupling agent should be a material with a similar acoustic impedance to the coating, such as glycerin or a special ultrasonic coupling agent, to reduce the loss of sound wave reflection. Starting from the top of the drill bit, slowly move the transducer axially or radially according to the predetermined collection point layout to ensure that each collection point can be effectively detected. The collection points also need to be evenly distributed and focus on covering areas prone to defects. At each acquisition point, an ultrasonic pulse is triggered to observe the reflected wave waveform on the flaw detector display. The duration of the reflected wave is recorded, and the phase change value is measured using the built-in phase analysis function of the flaw detector. To ensure data accuracy, each acquisition point is tested 5 times, and the average value is taken as the final ultrasonic detection feature data after eliminating abnormal values.

[0048] W2, input the Raman shift, characteristic peak intensity and half-peak width corresponding to each acquisition point in the target drill bit coating at each acquisition time point into the Raman spectrum characteristic evaluation value analysis model, output the Raman spectrum characteristic evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point, and record the Raman spectrum characteristic evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point as , where y represents the number corresponding to each acquisition time point, y is a positive integer, and m represents the number corresponding to each acquisition point, m is a positive integer.

[0049] It should be noted that the analysis process of the Raman spectrum characteristic evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point is as follows: the Raman shift, characteristic peak intensity and half-peak width corresponding to each acquisition point in the target drill bit coating at each acquisition time point are normalized, and the Raman shift, characteristic peak intensity and half-peak width corresponding to each acquisition point in the target drill bit coating at each acquisition time point after processing are recorded as , and , substitute into the analysis formula , and obtain the Raman spectral characteristic evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point .

[0050] W3, input the reflection wave duration, reflection wave amplitude and phase change value corresponding to each acquisition point in the target drill bit coating at each acquisition time point into the ultrasonic detection feature evaluation value analysis model, output the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point, and record the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point as .

[0051] It should be noted that the ultrasonic detection feature evaluation value corresponding to each collection point in the target drill bit coating at each collection time point is obtained by analyzing the Raman spectrum feature evaluation value corresponding to each collection point in the target drill bit coating at each collection time point mentioned above.

[0052] In another specific embodiment, the drill bit coating evaluation value analysis model is expressed as: , where Indicates the drill bit coating evaluation value results corresponding to the target drill bit at each acquisition time point, is the drill bit coating evaluation value threshold, d represents the number of collection points, where , They are the standard Raman spectrum characteristic evaluation value and the standard ultrasonic detection characteristic evaluation value corresponding to the set drill bit coating, , They are respectively the weight factors corresponding to the set Raman spectrum characteristic evaluation values ​​of the drill coating and the weight factors corresponding to the ultrasonic detection characteristic evaluation values.

[0053] It should be noted that , Both are greater than 0 and less than 1.

[0054] Drill bit recoating scheme adjustment module: used to analyze the target drill bit recoating composition scheme at a certain acquisition time point when the target drill bit coating needs to be recoated at the acquisition time point.

[0055] In a specific embodiment, the drill bit recoating scheme adjustment module also includes an environmental adaptability index acquisition unit and an environmental adaptability evaluation value analysis unit; the environmental adaptability index acquisition unit is used to obtain the environmental adaptability index corresponding to the target drill bit coating at a certain collection time point when the target drill bit coating needs to be recoated at the collection time point, and the environmental adaptability index includes abrasive wear rate, ceramic oxide content ratio and antioxidant weight gain rate.

[0056] The environmental adaptability evaluation value analysis unit is used to analyze and obtain the environmental adaptability evaluation value corresponding to the target drilling rig drill bit coating at the collection time point according to the environmental adaptability index corresponding to the target drilling rig drill bit coating at the collection time point.

[0057] In a specific embodiment, the analysis obtains the environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point, and the specific analysis process is as follows: the abrasive wear rate, ceramic oxide content ratio and antioxidant weight gain rate corresponding to the target drill bit coating at the acquisition time point are respectively recorded as , and , substitute into the calculation formula: The environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point is obtained. ,in, , , They are the standard abrasive wear rate, standard ceramic oxide content ratio, and standard antioxidant weight gain rate corresponding to the set drilling rig drill bit coating. , , They are the weight factors corresponding to the set abrasive wear rate of the drilling rig drill bit coating, the proportion of ceramic oxide content, and the antioxidant weight gain rate.

[0058] It should be noted that , , Both are greater than 0 and less than 1.

[0059] In a specific embodiment, the target drill bit coating composition scheme at the acquisition time point is analyzed, and the specific analysis process is as follows: E1. The environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point is compared with the environmental adaptability evaluation value corresponding to the set standard drill bit coating. If the environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point is less than or equal to the environmental adaptability evaluation value corresponding to the set standard drill bit coating, the target drill bit coating at the acquisition time point is recorded as normal wear; if the environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point is greater than the environmental adaptability evaluation value corresponding to the set standard drill bit coating, the target drill bit coating at the acquisition time point is recorded as corrosive wear.

[0060] E2. If the target drill bit coating is recorded as normal wear at the collection time point, a refined maintenance recoating strategy is adopted, and an appropriate amount of anti-sulfide corrosion component is added to the recoating composition in advance, accounting for 1%-3%, and 1.5% zinc molybdate is added. At the same time, an organic silane coupling agent is used in combination, accounting for 0.5%-1%.

[0061] E3. If the target drill bit coating is recorded as corrosive wear at the collection time point, a high-intensity restorative recoating program will be immediately initiated. In addition to adopting a refined maintenance recoating strategy based on normal wear, organic polymer materials such as polyacrylates need to be added, accounting for 3%-5%. At the same time, based on the existing anti-corrosion components, the combination is further optimized to use aluminum oxide, titanium oxide and rare earth element oxides in a coordinated manner.

[0062] Embodiments of the present invention Figure 2 As shown, a drilling rig inspection method includes: step one, formulation of a drill bit coating inspection plan: obtaining the formation lithology data corresponding to the target drilling rig operating area, thereby analyzing and obtaining the formation lithology assessment value corresponding to the target drilling rig operating area, and then matching the inspection plan corresponding to the target drilling rig drill bit coating according to the formation lithology assessment value interval corresponding to the drill bit coating inspection plan of each drilling rig in the database.

[0063] Step 2: Evaluation of drill bit coating inspection: Collect Raman spectral features and ultrasonic detection features corresponding to each collection point in the target drill bit coating at each collection time point in the inspection plan, and then evaluate whether the target drill bit coating needs to be re-coated at each collection time point.

[0064] Step 3: Adjustment of drill bit recoating scheme: When the target drill bit coating needs to be recoated at a certain acquisition time point, the target drill bit recoating composition scheme at the acquisition time point is analyzed.

[0065] The above contents are merely examples and explanations of the concept of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the concept of the invention or exceed the scope defined in this specification, they shall all fall within the protection scope of the present invention.

Claims

1. A drilling rig inspection system, characterized in that: include: Drill bit coating inspection plan formulation module: used to obtain the formation lithology data corresponding to the target drilling rig operation area, so as to analyze and obtain the formation lithology assessment value corresponding to the target drilling rig operation area, and then match the inspection plan corresponding to the drill bit coating of the target drilling rig according to the formation lithology assessment value interval corresponding to the drill bit coating inspection plan of each drilling rig in the database; Drill bit coating inspection and evaluation module: used to collect the Raman spectrum characteristics and ultrasonic detection characteristics corresponding to each collection point in the target drill bit coating according to each collection time point in the inspection plan, and then evaluate whether the target drill bit coating needs to be re-coated at each collection time point; Drill bit recoating scheme adjustment module: used to analyze the target drill bit recoating composition scheme at a certain acquisition time point when the target drill bit coating needs to be recoated at the acquisition time point.

2. A drilling rig inspection system as claimed in claim 1, characterized in that: The analysis obtains the formation lithology assessment value corresponding to the target drilling rig operation area. The specific analysis process is as follows: Obtain the formation lithology data corresponding to the target drilling rig operation area. The formation lithology data includes the hardness value, mineral content and pH value of each type of rock corresponding to each formation, and record the hardness value, mineral content and pH value of each type of rock corresponding to the target drilling rig operation area as , and , v represents the number corresponding to each type of rock, v is a positive integer, z represents the number corresponding to each stratum, z is a positive integer, substitute into the calculation formula: The formation lithology assessment value corresponding to the target drilling rig operation area is obtained , where q is the collection of all types of rocks, w is the collection of all strata, , , They are the standard hardness values, standard mineral content, and standard pH values ​​of various types of rocks corresponding to the set drilling rig operation area. , , They are the weight factors corresponding to the hardness values ​​of various types of rocks in the set drilling rig operation area, the weight factors corresponding to the mineral content, and the weight factors corresponding to the pH of each formation. , , They are the adjustment factors corresponding to the hardness values ​​of various types of rocks in the set drilling rig operation area, the adjustment factors corresponding to the mineral content, and the adjustment factors corresponding to the pH of each formation. , , They are the hardness value difference of each type of rock corresponding to the set permitted drilling rig operation area, the permitted mineral component content difference, and the standard pH difference corresponding to each permitted formation.

3. A drilling rig inspection system as claimed in claim 2, characterized in that: According to the formation lithology assessment value interval corresponding to the drill bit coating inspection plan of each drilling rig in the database, the inspection plan corresponding to the drill bit coating of the target drilling rig is matched. The specific matching process is as follows: The formation lithology assessment value corresponding to the target drilling rig operating area is compared with the formation lithology assessment value interval corresponding to the drill bit coating inspection plan of each drilling rig in the database. If the formation lithology assessment value corresponding to the target drilling rig operating area is within the formation lithology assessment value interval corresponding to the drill bit coating inspection plan of a certain drilling rig in the database, the drill bit coating inspection plan of the drilling rig in the database will be used as the inspection plan corresponding to the drill bit coating of the target drilling rig.

4. A drilling rig inspection system as claimed in claim 3, characterized in that: The specific evaluation process of evaluating whether the target drill bit coating needs to be re-coated at each acquisition time point is as follows: Q1. Obtain the Raman spectrum feature evaluation value and ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point, and input the Raman spectrum feature evaluation value and ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point into the drill bit coating evaluation value analysis model, and output the drill bit coating evaluation value result corresponding to the target drill bit at each acquisition time point; Q2. The drill bit coating evaluation value results include values ​​of 1 and -1. When the coating evaluation value result corresponding to the target drill bit at a certain acquisition time point is 1, it indicates that the target drill bit coating at the acquisition time point does not need to be recoated. Conversely, when the coating evaluation value result corresponding to the target drill bit at a certain acquisition time point is -1, it indicates that the target drill bit coating at the acquisition time point needs to be recoated.

5. A drilling rig inspection system as claimed in claim 4, characterized in that: The specific acquisition process of obtaining the Raman spectrum characteristic evaluation value and the ultrasonic detection characteristic evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point is as follows: W1. Obtain the Raman spectrum characteristics and ultrasonic detection characteristics corresponding to each acquisition point in the target drill bit coating at each acquisition time point. The Raman spectrum characteristics include Raman shift, characteristic peak intensity and half-peak width, and the ultrasonic detection characteristics include reflection wave duration, reflection wave amplitude and phase change value; W2, input the Raman shift, characteristic peak intensity and half-peak width corresponding to each acquisition point in the target drill bit coating at each acquisition time point into the Raman spectrum characteristic evaluation value analysis model, output the Raman spectrum characteristic evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point, and record the Raman spectrum characteristic evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point as , where y represents the number corresponding to each acquisition time point, y is a positive integer, and m represents the number corresponding to each acquisition point, m is a positive integer; W3, input the reflection wave duration, reflection wave amplitude and phase change value corresponding to each acquisition point in the target drill bit coating at each acquisition time point into the ultrasonic detection feature evaluation value analysis model, output the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point, and record the ultrasonic detection feature evaluation value corresponding to each acquisition point in the target drill bit coating at each acquisition time point as .

6. A drilling rig inspection system as claimed in claim 5, characterized in that: The expression of the drill bit coating evaluation value analysis model is: , where Indicates the drill bit coating evaluation result corresponding to the target drill bit at each acquisition time point, is the drill bit coating evaluation value threshold, d represents the number of collection points, where , They are the standard Raman spectrum characteristic evaluation value and the standard ultrasonic detection characteristic evaluation value corresponding to the set drill bit coating, , They are respectively the weight factors corresponding to the set Raman spectrum characteristic evaluation values ​​of the drill coating and the weight factors corresponding to the ultrasonic detection characteristic evaluation values.

7. A drilling rig inspection system as claimed in claim 6, characterized in that: The drill bit recoating scheme adjustment module also includes an environmental adaptability index acquisition unit and an environmental adaptability evaluation value analysis unit; The environmental adaptability index acquisition unit is used to acquire the environmental adaptability index corresponding to the target drill bit coating at a certain acquisition time point when the target drill bit coating needs to be re-coated at the acquisition time point, and the environmental adaptability index includes abrasive wear rate, ceramic oxide content ratio and antioxidant weight gain rate; The environmental adaptability evaluation value analysis unit is used to analyze and obtain the environmental adaptability evaluation value corresponding to the target drilling rig drill bit coating at the collection time point according to the environmental adaptability index corresponding to the target drilling rig drill bit coating at the collection time point.

8. A drilling rig inspection system as claimed in claim 7, characterized in that: The analysis obtains the environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point, and the specific analysis process is as follows: The abrasive wear rate, ceramic oxide content ratio and antioxidant weight gain rate of the target drill bit coating at the acquisition time point are recorded as , and , substitute into the calculation formula The environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point is obtained. ,in, , , They are the standard abrasive wear rate, standard ceramic oxide content ratio, and standard antioxidant weight gain rate corresponding to the set drilling rig drill bit coating. , , They are the weight factors corresponding to the set abrasive wear rate of the drilling rig drill bit coating, the proportion of ceramic oxide content, and the antioxidant weight gain rate.

9. A drilling rig inspection system as claimed in claim 8, characterized in that: The specific analysis process of analyzing the target drill bit recoating composition scheme at the acquisition time point is as follows: E1. Compare the environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point with the environmental adaptability evaluation value corresponding to the set standard drill bit coating. If the environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point is less than or equal to the environmental adaptability evaluation value corresponding to the set standard drill bit coating, the target drill bit coating at the acquisition time point is recorded as normal wear. If the environmental adaptability evaluation value corresponding to the target drill bit coating at the acquisition time point is greater than the environmental adaptability evaluation value corresponding to the set standard drill bit coating, the target drill bit coating at the acquisition time point is recorded as corrosive wear. E2. If the target drill bit coating is recorded as normal wear at the acquisition time point, a refined maintenance recoating strategy is adopted, and an appropriate amount of anti-sulfide corrosion component is added to the recoating composition in advance, accounting for 1%-3%, and 1.5% zinc molybdate is added. At the same time, an organic silane coupling agent is used in combination, accounting for 0.5%-1%; E3. If the target drill bit coating is recorded as corrosive wear at the collection time point, a high-intensity restorative recoating program will be immediately initiated. In addition to adopting a refined maintenance recoating strategy based on normal wear, organic polymer materials such as polyacrylates need to be added, accounting for 3%-5%. At the same time, based on the existing anti-corrosion components, the combination is further optimized to use aluminum oxide, titanium oxide and rare earth element oxides in a coordinated manner.

10. A drilling rig inspection method for executing the drilling rig inspection system according to any one of claims 1 to 9, characterized in that: include: Step 1: Formulate a drill bit coating inspection plan: Obtain the formation lithology data corresponding to the target drilling rig operation area, thereby analyzing and obtaining the formation lithology assessment value corresponding to the target drilling rig operation area, and then match the inspection plan corresponding to the drill bit coating of the target drilling rig according to the formation lithology assessment value interval corresponding to the drill bit coating inspection plan of each drilling rig in the database; Step 2: Evaluation of drill bit coating inspection: Collect Raman spectrum features and ultrasonic detection features corresponding to each collection point in the target drill bit coating at each collection time point in the inspection plan, and then evaluate whether the target drill bit coating needs to be re-coated at each collection time point; Step 3: Adjustment of drill bit recoating scheme: When the target drill bit coating needs to be recoated at a certain acquisition time point, the target drill bit recoating composition scheme at the acquisition time point is analyzed.

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