Method and device for identifying drilling stuck type

Abstract

The present invention discloses a method and device for identifying drilling stuck types, wherein the method comprises: recording drill tool characteristic data of a drilling tool during each drilling tool connection cycle; the drill tool connection cycle is used to characterize the cycle in which the drilling tool sequentially completes the pull-out operation, connection operation, downhole operation, and drilling operation; comparing the drill tool characteristic data of the drilling stuck cycle with the drill tool characteristic data of the cycle before the drilling stuck cycle to obtain a change in the drill tool characteristic data during the drilling stuck cycle; and determining the drilling stuck type during the drilling stuck cycle based on the change in the drill tool characteristic data during the drilling stuck cycle, in combination with a pre-set correlation between the change in the drill tool characteristic data and the drilling stuck type. The present invention can automatically identify the drilling stuck type, improving the accuracy and efficiency of identifying the drilling stuck type.

Description

Technical Field

[0001] The present invention relates to the technical field of oil development, and in particular to a method and device for identifying the type of stuck pipe in a well. Background Art

[0002] This section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. No statement herein is admitted to be prior art by virtue of its inclusion in this section.

[0003] Pipe sticking accidents are common during oil exploration and development drilling. These accidents occur when the drill string becomes unable to move freely within the wellbore. Forcing the drill string to move can lead to complex accidents such as breakage and top drive failure. Once a stuck drill string accident occurs, drilling operations must be suspended and resolved. Different types of stuck drill strings require different resolution measures. Improper handling can lead to the wellbore being scrapped, seriously impacting construction progress and increasing drilling costs.

[0004] There are many reasons for drilling stuck drill accidents, including sand stuck drill, pressure difference stuck drill, keyway stuck drill, reduced diameter stuck drill, etc. Different types of stuck drill have different corresponding sticking mechanisms and different identification methods.

[0005] Therefore, when a stuck drill accident occurs during drilling construction, it is necessary to scientifically and accurately analyze the cause of the stuck drill and take correct and timely treatment measures according to different types of stuck drills. This is an effective means to ensure the smooth progress of drilling construction and reduce drilling risks.

[0006] At present, the analysis method of drill sticking accidents generally requires on-site construction personnel to use the drilling weight and torque parameters to monitor the axial and circumferential stress conditions of the drill bit in the wellbore, and use the set thresholds to determine whether the drill bit is blocked or stuck.

[0007] However, this method relies on manual labor to diagnose the type of stuck drill, which is very likely to result in misjudgment. When a stuck drill accident occurs, drilling site operators are unable to accurately identify the type and cause of the stuck drill, affecting the accuracy of determining the type of stuck drill. At the same time, the manual judgment method will inevitably affect the efficiency of the analysis of the stuck drill type. Summary of the Invention

[0008] An embodiment of the present invention provides a method for identifying a stuck drill type in a drilling operation, for automatically identifying a stuck drill type in a drilling operation, and improving the accuracy and efficiency of identifying a stuck drill type in a drilling operation. The method includes:

[0009] Recording drilling tool characteristic data of the drilling tool during each drilling tool connection cycle; the drilling tool connection cycle is used to represent the period during which the drilling tool sequentially completes the pull-out operation, connection operation, run-in operation, and drilling operation; the drilling tool characteristic data includes lifting suspended weight characteristic data, lowering suspended weight characteristic data, and rotational torque characteristic data;

[0010] Comparing the drill tool characteristic data of the period in which the drill bit is stuck with the drill tool characteristic data of the period before the period in which the drill bit is stuck, to obtain a change in the drill tool characteristic data of the period in which the drill bit is stuck;

[0011] The preset correlation between the change of the drilling tool characteristic data and the drilling stuck type is combined, and the drilling stuck type in the period when the drilling stuck occurs is determined according to the change of the drilling tool characteristic data in the period when the drilling stuck occurs.

[0012] An embodiment of the present invention further provides a device for identifying the type of stuck drill pipe in drilling, which is used to automatically identify the type of stuck drill pipe in drilling and improve the accuracy and efficiency of identifying the type of stuck drill pipe in drilling. The device includes:

[0013] A drill tool characteristic data recording module is used to record the drill tool characteristic data of the drill tool during each drill tool connection cycle; the drill tool connection cycle is used to represent the period in which the drill tool sequentially completes the pull-out operation, connection operation, run-in operation, and drilling operation; the drill tool characteristic data includes lifting and hanging weight characteristic data, lowering and hanging weight characteristic data, and rotational torque characteristic data;

[0014] a drill tool characteristic data change determination module, configured to compare the drill tool characteristic data of a drilling stuck period with the drill tool characteristic data of a period immediately preceding the drilling stuck period to determine a change in the drill tool characteristic data of the drilling stuck period;

[0015] The drilling stuck drill type determination module is used to combine the preset correlation between the change of drilling tool characteristic data and the drilling stuck drill type, and determine the drilling stuck drill type in the period when the drilling stuck drill occurs according to the change of drilling tool characteristic data in the period when the drilling stuck drill occurs.

[0016] An embodiment of the present invention further provides a computer device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the above-mentioned method for identifying the type of stuck drill bit during drilling when executing the computer program.

[0017] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the method for identifying the type of stuck drill pipe is implemented.

[0018] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the method for identifying the type of stuck drill pipe is implemented.

[0019] In the embodiment of the present invention, the drill tool characteristic data of the drill tool in the drilling process is recorded in each drill tool connection cycle; the drill tool connection cycle is used to characterize the cycle in which the drill tool completes the drilling operation, the single-thread connection operation, the drilling operation and the drilling operation in sequence; the drill tool characteristic data includes the lifting weight characteristic data, the lowering weight characteristic data and the rotation torque characteristic data; the drill tool characteristic data of the cycle in which the drilling drill is stuck is compared with the drill tool characteristic data of the previous cycle in which the drilling drill is stuck, and the change of the drill tool characteristic data of the cycle in which the drilling drill is stuck is obtained; the relationship between the preset drill tool characteristic data change and the drilling drill stick type is combined. According to the changes in the drill tool characteristic data during the period when the drilling stuck occurs, the drilling stuck type during the period when the drilling stuck occurs is determined. Compared with the technical solution of subjective manual judgment of the drill stuck type in the existing technology, by determining the changes in the drill tool characteristic data during the period when the drilling stuck occurs, and combining the preset correlation between the changes in the drill tool characteristic data and the drilling stuck type, the drilling stuck type during the period when the drilling stuck occurs can be accurately determined, and the drilling stuck type can be automatically identified, which solves the problems of low accuracy and efficiency easily caused by manual judgment of the drill stuck type in the existing technology, and improves the accuracy and efficiency of identifying the drilling stuck type. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0021] Figure 1 Schematic diagram of a flow chart of a method for identifying the type of stuck pipe in drilling according to an embodiment of the present invention;

[0022] Figure 2 This is a specific example diagram of a method for identifying the type of stuck pipe in drilling according to an embodiment of the present invention;

[0023] Figure 3 This is a structural diagram of an apparatus for identifying the type of stuck drill pipe in a well according to an embodiment of the present invention;

[0024] Figure 4 This is a specific example diagram of a device for identifying the type of stuck pipe in drilling according to an embodiment of the present invention;

[0025] Figure 5 A schematic diagram of a computer device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0027] The term "and / or" herein simply describes an association relationship, indicating that three relationships can exist. For example, A and / or B can represent the existence of A alone, the simultaneous existence of A and B, and the existence of B alone. In addition, the term "at least one" herein refers to any combination of at least two of any one or more of a plurality of items. For example, "at least one of A, B, and C" can represent any one or more elements selected from the set consisting of A, B, and C.

[0028] In the description of this specification, the terms "include", "including", "have", "contain", etc. are all open terms, which mean including but not limited to. The descriptions with reference to the terms "one embodiment", "a specific embodiment", "some embodiments", "for example", etc. mean that the specific features, structures or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. The order of steps involved in each embodiment is used to schematically illustrate the implementation of the present application, and the order of steps therein is not limited and can be appropriately adjusted as needed.

[0029] The embodiment of the present invention belongs to the technical field of bottom hole anomaly monitoring and identification during oil exploration drilling, and relates to a method for identifying drilling stuck pipe types. The invention is also applicable to other drilling and excavation fields such as geothermal and coalbed methane.

[0030] Pipe sticking accidents are common during oil exploration and development drilling. These accidents occur when the drill string becomes unable to move freely within the wellbore. Forcing the drill string to move can lead to complex accidents such as breakage and top drive failure. Once a stuck drill string accident occurs, drilling operations must be suspended and resolved. Different types of stuck drill strings require different resolution measures. Improper handling can lead to the wellbore being scrapped, seriously impacting construction progress and increasing drilling costs.

[0031] Therefore, when a stuck drill accident occurs during drilling construction, scientifically and accurately analyzing the causes of stuck drills and taking correct and timely treatment measures according to different types of stuck drills are effective means to ensure the smooth progress of drilling construction and reduce drilling risks.

[0032] There are many reasons for drilling stuck drill accidents, including sand stuck drill, pressure difference stuck drill, keyway stuck drill, reduced diameter stuck drill, etc. Different types of stuck drill have different corresponding sticking mechanisms and different identification methods.

[0033] The first is the drill stuck in the cuttings bed. During the drilling process, due to reasons such as excessive mechanical drilling speed and low drilling fluid displacement, the concentration of drilling fluid cuttings in the wellbore is high, and some cuttings form a bed attached to the well wall. During the drilling process, the cuttings move with the drill bit and accumulate locally, blocking the movement of the drill bit, resulting in drill stuck in the cuttings bed.

[0034] The second is differential pressure stuck drill. During the drilling process, due to the poor sealing performance of the mud cake on the well wall and the pressure difference between the formation and the wellbore fluid, additional adsorption force or positive pressure is generated between the drill bit and the well wall, causing the drill bit to be unable to move freely and resulting in drill stuck. This is differential pressure stuck drill.

[0035] The third is keyway drill sticking, which often occurs when there is a local bend in the wellbore trajectory during the drilling process. During the drilling process, the drill string leans against the inner side of the well wall under the action of gravity. During the drilling process, the drill string repeatedly pulls the curved part of the wellbore trajectory to form a wellbore with a locally larger diameter (keyway). When a drill collar or drill bit with a larger diameter enters the keyway, the drill sticking is called keyway drill sticking.

[0036] The fourth is drill bit sticking due to reduced diameter. During the drilling process of mudstone, shale or even gypsum formations with good permeability, the performance of the drilling fluid cannot meet the technical requirements of drilling construction, causing the wellbore diameter to become smaller, resulting in the drill bit and drill tools getting stuck, which is called drill bit sticking due to reduced diameter.

[0037] Currently, the analysis method for stuck drill bits generally requires on-site operators to use suspended weight and torque parameters to monitor the axial and circumferential forces on the drill string in the wellbore. Using set thresholds, they can independently determine whether the drill string is experiencing resistance or a stuck condition. However, this manual diagnosis of the type of stuck drill bit is highly susceptible to misjudgment. When a stuck drill bit event occurs, drilling site operators are unable to accurately identify the type and cause of the stuck drill bit, affecting the accuracy of the determination of the type of stuck drill bit. Furthermore, relying on manual judgment inevitably reduces the efficiency of the analysis of the type of stuck drill bit.

[0038] In order to solve the above problems, the embodiment of the present invention provides a method for identifying the type of drill bit stuck in drilling, which is used to automatically identify the type of drill bit stuck in drilling and improve the accuracy and efficiency of identifying the type of drill bit stuck in drilling. Figure 1 , the method may include:

[0039] Step 101: Recording drilling tool characteristic data of the drilling tool during each drilling tool connection cycle; the drilling tool connection cycle is used to represent the period during which the drilling tool sequentially completes the pull-out operation, connection operation, run-in operation, and drilling operation; the drilling tool characteristic data includes lifting weight characteristic data, lowering weight characteristic data, and rotational torque characteristic data;

[0040] Step 102: comparing the drill tool characteristic data of the drilling stuck period with the drill tool characteristic data of the period before the drilling stuck period to obtain a change in the drill tool characteristic data of the drilling stuck period;

[0041] Step 103: Determine the drilling stuck type in the period when the drilling stuck occurs based on the preset correlation between the drilling tool characteristic data change and the drilling stuck type and the drilling tool characteristic data change during the period when the drilling stuck occurs.

[0042] In the embodiment of the present invention, the drilling tool characteristic data of the drilling tool in the drilling is recorded in each drilling tool single-thread connection cycle; the above-mentioned drilling tool single-thread connection cycle is used to characterize the cycle in which the drilling tool completes the drilling operation, single-thread connection operation, drilling operation and drilling operation in sequence; the above-mentioned drilling tool characteristic data includes lifting hanging weight characteristic data, lowering hanging weight characteristic data and rotational torque characteristic data; the drilling tool characteristic data of the cycle in which drilling drill stuck occurs is compared with the drilling tool characteristic data of the previous cycle in which drilling drill stuck occurs, and the change of the drilling tool characteristic data of the cycle in which drilling drill stuck occurs is obtained; combined with the preset correlation between the change of the drilling tool characteristic data and the drilling drill stuck type According to the changes in the drill tool characteristic data during the period when the drilling stuck occurs, the drilling stuck type during the period when the drilling stuck occurs is determined. Compared with the technical solution of subjective manual judgment of the drill stuck type in the existing technology, by determining the changes in the drill tool characteristic data during the period when the drilling stuck occurs, and combining the preset correlation between the changes in the drill tool characteristic data and the drilling stuck type, the drilling stuck type during the period when the drilling stuck occurs can be accurately determined, and the drilling stuck type can be automatically identified, which solves the problems of low accuracy and efficiency easily caused by manual judgment of the drill stuck type in the existing technology, and improves the accuracy and efficiency of identifying the drilling stuck type.

[0043] During specific implementation, the drill tool characteristic data of the drill tool in the drilling process is first recorded during each drill tool connection cycle; the above-mentioned drill tool connection cycle is used to characterize the cycle in which the drill tool completes the drilling operation, single-thread connection operation, drilling operation and drilling operation in sequence; the above-mentioned drill tool characteristic data includes the lifting weight characteristic data, the lowering weight characteristic data and the rotational torque characteristic data.

[0044] In the above embodiment, when each drill string is drilled and the drill tool is kept at a sufficient displacement and rotation speed, it can be ensured that the rock cuttings at the lower drill tool assembly in the wellbore are basically cleared and the wellbore remains unobstructed, and the drill tool characteristic data of the drill tool in each drill tool connection cycle for analysis of the cause of stuck drill can be recorded.

[0045] In one embodiment, before recording the drilling tool characteristic data of the drilling tool in each drilling tool connection cycle, it is first determined whether the drill tool is stuck; when it is determined that the drill tool is stuck, the current well depth is recorded; when the drill tool is not stuck, the type of operation currently being performed by the drill tool is determined.

[0046] In the embodiment, the operation types include a pull-out operation, a single-thread connection operation, a run-in operation, and a drilling operation.

[0047] In the above embodiment, by first determining whether the drill tool is stuck, recording the well depth Bd when the drill tool is stuck as the well depth indicator for data acquisition, and determining the tripping, running, and drilling states when the drill tool is not stuck, different characteristic data of the drill tool's current operation can be obtained in subsequent steps. Drill tool stuck is a drilling condition alongside tripping, running, and drilling, indicating that the drill tool is stationary in the wellbore. Only after determining that the drill tool is not stuck can one enter one of the three operating conditions: tripping, running, or drilling.

[0048] In one embodiment, the above-mentioned lifting weight characteristic data includes a static lifting weight value and a dynamic lifting weight value;

[0049] Record the drilling tool characteristic data of the drilling tool in each drilling cycle, which may include:

[0050] During each drilling cycle, when the drill bit is pulled out of the well, the distance the drill bit is lifted and the real-time suspended weight of the drill bit as the drill bit is lifted are recorded;

[0051] When the drill bit is lifted up by a distance less than or equal to a first preset distance, the maximum value of the real-time drill tool hanging weight values as the drill bit is lifted up is used as the static lifting hanging weight value;

[0052] When the drill bit is lifted up by a distance greater than the first preset distance and less than or equal to the second preset distance, the average value of the real-time drill tool hanging weight value as the drill bit is lifted up is used as the dynamic lifting hanging weight value.

[0053] In the above embodiment, the first preset distance and the second preset distance can be flexibly set by the staff according to the drilling conditions. For example, the first preset distance can be 1 meter and the second preset distance can be 5 meters.

[0054] For example, the static lifting weight value can be determined as follows: stop rotating the drill tool and lift the drill tool 1-2 meters. By obtaining the maximum value of the real-time drill tool hanging weight values as the drill bit is lifted, the hanging weight value at the beginning of the drill tool lifting can be obtained, and this maximum value can be determined as the static lifting weight value.

[0055] To give another example, the dynamic lifting weight value can be determined as follows: stop rotating the drill bit, lift the drill bit 5-6 meters, and obtain the average value of the real-time drill bit hanging weight as the drill bit is lifted. The hanging weight value when the pulling force of lifting the drill bit is stable can be obtained, and this average value can be determined as the dynamic lifting weight value.

[0056] In one embodiment, the above-mentioned lowering hanging weight characteristic data includes a static lowering hanging weight value and a dynamic lowering hanging weight value;

[0057] Record the drilling tool characteristic data of the drilling tool in each drilling cycle, which may include:

[0058] During each drilling cycle, when the drill bit completes the single-thread connection operation and performs the drilling operation, the drill bit lowering distance and the real-time drill bit hanging weight value as the drill bit is lowered are recorded;

[0059] When the drill bit lowering distance is less than or equal to the third preset distance, the minimum value of the real-time drill tool hanging weight values when the drill bit is lowered is used as the static lowering hanging weight value;

[0060] When the drill bit lowering distance is greater than the third preset distance and less than or equal to the fourth preset distance, the average value of the real-time drill tool hanging weight values as the drill bit is lowered is used as the dynamic lowering hanging weight value.

[0061] In the above embodiment, the third preset distance and the fourth preset distance can be flexibly set by the staff according to the drilling conditions. For example, the third preset distance can be 1 meter; the fourth preset distance can be 5 meters.

[0062] For example, the static lowering hanging weight value can be determined as follows: stop rotating the drill bit, lower the drill bit 1-2 meters, and obtain the minimum value of the real-time drill bit hanging weight values as the drill bit is lowered. The hanging weight value at the beginning of lowering the drill bit can be obtained, and this maximum value can be determined as the static lowering hanging weight value;

[0063] To give another example, the dynamic lowering hanging weight value can be determined as follows: stop rotating the drill bit, lower the drill bit 5-6 meters, and by obtaining the average value of the real-time drill bit hanging weight value as the drill bit is lowered, the hanging weight value when the tension of the lowered drill bit is stable can be obtained, and this average value can be determined as the dynamic lowering hanging weight value.

[0064] In one embodiment, the rotation torque characteristic data includes a static rotation torque value and a dynamic rotation torque value;

[0065] Record the drilling tool characteristic data of the drilling tool in each drilling cycle, which may include:

[0066] When the drilling tool performs the drilling operation in each drilling cycle, the rotation time of the drill bit and the real-time rotation torque value as the drill bit rotates are recorded;

[0067] When the drill bit rotation time is less than or equal to the first preset time, the maximum value of the real-time rotation torque values as the drill bit rotates is used as the static rotation torque value;

[0068] When the drill bit rotation time is greater than the first preset time and less than or equal to the second preset time, the average value of the real-time rotation torque values along with the rotation of the drill bit is used as the dynamic rotation torque value.

[0069] In the above embodiment, the first preset time length and the second preset time length can be flexibly set by the staff according to the drilling working conditions. For example, the first preset time length can be 10 seconds; and the second preset time length can be 30 seconds.

[0070] For example, the static rotational torque value can be determined as follows: the drill bit is lifted 1-2 meters from the bottom of the well, and the drill bit is rotated at the mud displacement and rotation speed during normal drilling. By obtaining the maximum value of the real-time rotational torque values as the drill bit rotates, the torque value after the rotational torque stabilizes can be obtained. The maximum value of the real-time rotational torque values as the drill bit rotates can be used as the static rotational torque value.

[0071] To give another example, the dynamic rotational torque value can be determined as follows: lift the drill bit 1-2 meters from the bottom of the well and rotate the drill bit at the mud displacement and rotation speed during normal drilling. By obtaining the average value of the real-time rotational torque values as the drill bit rotates, the torque value after the rotational torque stabilizes can be obtained, and the average value of the real-time rotational torque values as the drill bit rotates can be used as the dynamic rotational torque value.

[0072] In specific implementation, after recording the drill tool characteristic data of the drill tool during drilling in each drill tool connection cycle, the drill tool characteristic data of the cycle in which drilling stuck occurs is compared with the drill tool characteristic data of the cycle before the cycle in which drilling stuck occurs, to obtain the change of the drill tool characteristic data in the cycle in which drilling stuck occurs.

[0073] In the embodiment, the obtained drill tool characteristic data changes during the drilling stuck period can be used to quantify the parameters of the drilling stuck pipe, which helps to automatically identify the drilling stuck pipe type in subsequent steps.

[0074] In one embodiment, comparing the drill tool characteristic data of a drilling stuck period with the drill tool characteristic data of a period before the drilling stuck period to obtain a change in the drill tool characteristic data of the drilling stuck period may include:

[0075] The drill tool characteristic data of the period when drilling stuck occurs are compared with the drill tool characteristic data of the period before the period when drilling stuck occurs, and the dynamic increase and decrease of the static lifting hanging weight value, dynamic lifting hanging weight value, static lowering hanging weight value, dynamic lowering hanging weight value, static rotational torque value and dynamic rotational torque value of the period when drilling stuck occurs are obtained.

[0076] In the above embodiment, the dynamic increase and decrease may include increasing first and then decreasing, decreasing first and then increasing, increasing first and then decreasing to the same as the corresponding data in the previous cycle, etc. This embodiment is not limited to this.

[0077] In a specific implementation, after comparing the drill tool characteristic data of the period in which drilling stuck occurs with the drill tool characteristic data of the period before the period in which drilling stuck occurs to obtain the change of the drill tool characteristic data in the period in which drilling stuck occurs, the drilling stuck type in the period in which drilling stuck occurs is determined based on the change of the drill tool characteristic data in the period in which drilling stuck occurs, in combination with a preset correlation between the change of the drill tool characteristic data and the type of drilling stuck.

[0078] In an embodiment, the above method may further include:

[0079] The relationship between changes in drilling tool characteristic data and drilling stuck types is preset as follows:

[0080] Correlate changes in drill tool characteristic data, including increases in static lifting weight, decreases in static lowering weight, and increases in dynamic rotational torque, with the type of drill bit stuck in the cuttings bed;

[0081] Establish a correlation between the changes in drilling tool characteristic data, including the increase in static lifting weight value and the static rotation torque value that first increases and then decreases, and the type of differential pressure sticking;

[0082] Establish an association between the drill tool characteristic data changes, including the increase in the dynamic lifting hanging weight value and the increase or decrease in the dynamic lowering hanging weight value that do not exceed the preset value, and the keyway drill stuck type;

[0083] The changes in the characteristic data of the drill tool, including the dynamic lifting hanging weight value first increasing and then decreasing, and the dynamic rotation torque value increasing, are associated with the type of drill bit sticking due to reduced diameter.

[0084] In one embodiment, when establishing an association between the changes in the drill tool characteristic data, including the increase in the static lift-up weight value and the static rotational torque value that first increases and then decreases, and the pressure differential drilling type, the specific implementation scenario is as follows: the drill tool tends to be normal after moving for a period of time, which means that the static lift-up weight and the static rotational torque tend to be normal at the same time, corresponding to the increase in the static lift-up weight value and the static rotational torque value that first increases and then decreases.

[0085] In the above embodiment, each characteristic data in the change of the drilling tool characteristic data is likely to change. In the above method, only the characteristic data with the most significant change of the corresponding drilling stuck type is associated with the drilling stuck type, and the changes of other characteristic data are not used as indicators for establishing the association relationship; therefore, in subsequent steps, whenever a change of the characteristic data of the corresponding drilling stuck type appears in the change of the drilling tool characteristic data in a period in which drilling stuck occurs, it can be considered that the change corresponds to the drilling stuck type, and the drilling stuck type in the period in which drilling stuck occurs can be determined.

[0086] In one embodiment, in combination with a preset correlation between changes in drilling tool characteristic data and types of drilling stuck pipe, determining the type of drilling stuck pipe in a period in which drilling stuck pipe occurs based on changes in drilling tool characteristic data may include:

[0087] The dynamic increase and decrease of the static lifting suspended weight value, dynamic lifting suspended weight value, static lowering suspended weight value, dynamic lowering suspended weight value, static rotational torque value and dynamic rotational torque value in the period when drilling stuck occurs are matched in the above-mentioned association relationship, and the drilling stuck type that matches the above-mentioned dynamic increase and decrease changes is determined as the drilling stuck type in the period when drilling stuck occurs.

[0088] In an embodiment, if a characteristic data change corresponding to a drilling stuck type occurs in the drill tool characteristic data change during a drilling stuck period, it can be considered that the change corresponds to the drilling stuck type, and the drilling stuck type during the drilling stuck period can be determined.

[0089] In the above embodiment, the drilling stuck drill type can be automatically identified, which solves the problem of low accuracy and efficiency easily caused by manual judgment of the drill stuck drill type in the existing technology, and improves the accuracy and efficiency of identifying the drilling stuck drill type.

[0090] In a specific implementation, the method for identifying the type of stuck drill pipe provided by the embodiment of the present invention may further include:

[0091] If, in combination with the preset correlation between the changes in the drill tool characteristic data and the drilling stuck type, the drilling stuck type in the period in which the drilling stuck occurs cannot be determined based on the changes in the drill tool characteristic data in the period in which the drilling stuck occurs, an alarm message indicating that the drilling stuck type cannot be determined and the changes in the drill tool characteristic data in the period in which the drilling stuck occurs are issued.

[0092] In an embodiment, when there is no situation matching the drill tool characteristic data change situation in the above-mentioned association relationship in the drill tool characteristic data change situation during the drilling stuck period, it is impossible to determine the drilling stuck type during the drilling stuck period. In this case, an alarm message indicating that the drilling stuck type cannot be determined and the drill tool characteristic data change situation during the drilling stuck period are issued for the staff to make manual auxiliary judgment, which is also beneficial to improving the accuracy and efficiency of identifying the drilling stuck type.

[0093] A specific embodiment is given below to illustrate the specific application of the method of the present invention.

[0094] Currently, during drilling, on-site operators use suspended weight and torque parameters while drilling to monitor the axial and circumferential forces acting on the drill string in the wellbore. They also set thresholds to determine whether the drill string is experiencing resistance or sticking. When a stuck drill string incident occurs, on-site operators are unable to accurately identify the type and cause of the stuck drill string based on the raw suspended weight and torque parameters while drilling. Therefore, they need to process these raw suspended weight and torque parameters for different types of stuck drill strings and develop an inversion analysis method for different causes of stuck drill strings. This allows for accurate identification of the causes of stuck drill strings, providing technical support for identifying the types of stuck drill strings during drilling and developing corresponding treatment measures.

[0095] The purpose of the embodiment of the present invention is to establish a monitoring method for the hanging weight and torque characteristic data of accident causes such as drilling cuttings bed stuck drill type, pressure differential stuck drill type, keyway stuck drill type and reduced diameter stuck drill type by analyzing the characterization relationship between hanging weight and torque parameters and stuck drill accidents (i.e., the above-mentioned correlation relationship), and to realize the inverse analysis of common drilling stuck drill causes using hanging weight and torque characteristic data, thereby solving the problem that the original hanging weight and torque parameters based on the existing technology cannot accurately predict the causes of stuck drill.

[0096] To achieve the invention's objectives, the core technology of the present invention is to convert raw suspended weight and torque characteristic data while drilling into a data feature flow that characterizes the causes of stuck pipe. The present invention's method is described using the single-joint drilling process as an example to illustrate the specific embodiments of the invention.

[0097] like Figure 2 The figure shows a flow chart for converting the original hanging weight and torque parameters into characteristic data representing the cause of drill sticking. The steps of statistically processing the original hanging weight and torque parameters and analyzing the cause of drill sticking are as follows:

[0098] Step 1: First determine whether the drill is stuck:

[0099] When the drill string is stuck, the well depth Bd is recorded as the well depth indicator for data acquisition. When the drill string is not stuck, the pulling out, running in, and drilling status are determined.

[0100] Step 2: When the drill is in the starting state, record the starting position Pu1 and the ending position Pu2 of the drill bit:

[0101] When the lifting distance exceeds 1m, the maximum value of the collected hanging weight data is taken as the static lifting hanging weight;

[0102] When the lifting distance exceeds 5m, the average value of the collected hanging weight data is taken as the dynamic lifting hanging weight;

[0103] Step 3: When drilling, record the starting position Pd1 and the ending position Pd2 of the drill bit lifting:

[0104] When the lowering distance exceeds 1m, the minimum value of the collected hanging weight data is taken as the static lowering hanging weight;

[0105] When the lowering distance exceeds 5m, the average value of the collected hanging weight data is taken as the dynamic lowering hanging weight;

[0106] Step 4: When drilling, record the start rotation time T1 and the end rotation time T2 respectively:

[0107] When the rotation time exceeds 10s and the drill bit is lifted more than 1m from the bottom of the well, the maximum value of the collected torque data is taken as the static rotation torque;

[0108] When the rotation time exceeds 30 s and the drill bit is lifted from the bottom of the well for more than 1 m, the average value of the collected torque data is taken as the dynamic rotation torque.

[0109] Step 5: According to the diagnostic methods of different causes of drill sticking, determine the types of drill sticking caused by sand deposition, differential pressure, keyway and reduced diameter.

[0110] The detailed diagnostic method for step 5 can be as follows:

[0111] 5.1 Types of drill stuck in cuttings bed: When drilling a single well, the static lifting weight value increases, the static lowering weight value decreases, and the dynamic rotation torque value increases when drilling and cleaning the wellbore. This can be diagnosed as drill stuck in cuttings bed;

[0112] 5.2 Differential pressure stuck drill type: After the drill string has been stationary for a period of time, the static lifting weight value and the static rotation torque value increase. After the drill string moves for a period of time, it returns to normal. This can be diagnosed as differential pressure stuck drill;

[0113] 5.3 Keyway stuck drill type: If the dynamic lifting weight value increases during the drilling process, the dynamic lowering weight value is normal during the drilling process, and the dynamic lifting weight value continues to increase during the drilling process as the wellbore extends, it can be diagnosed as keyway stuck drill;

[0114] 5.4 Drill stuck due to reduced diameter: If the dynamic lifting weight value increases during the drilling process and returns to normal within a short distance, and the dynamic rotation torque value increases when the drill bit rotates, it can be diagnosed as drill stuck due to reduced diameter.

[0115] The purpose of the embodiment of the present invention is to establish a monitoring method for the hanging weight and torque characteristic data of accident causes such as drilling cuttings bed stuck drill type, pressure differential stuck drill type, keyway stuck drill type and reduced diameter stuck drill type by analyzing the characterization relationship between hanging weight and torque parameters and stuck drill accidents (i.e., the above-mentioned correlation relationship), and to realize the inverse analysis of common drilling stuck drill causes using hanging weight and torque characteristic data, thereby solving the problem that the original hanging weight and torque parameters based on the existing technology cannot accurately predict the causes of stuck drill.

[0116] Of course, it is understandable that the above detailed process may have other variations, and all relevant variations should fall within the scope of protection of the present invention.

[0117] In the embodiment of the present invention, the drilling tool characteristic data of the drilling tool in the drilling is recorded in each drilling tool single-thread connection cycle; the above-mentioned drilling tool single-thread connection cycle is used to characterize the cycle in which the drilling tool completes the drilling operation, single-thread connection operation, drilling operation and drilling operation in sequence; the above-mentioned drilling tool characteristic data includes lifting hanging weight characteristic data, lowering hanging weight characteristic data and rotational torque characteristic data; the drilling tool characteristic data of the cycle in which drilling drill stuck occurs is compared with the drilling tool characteristic data of the previous cycle in which drilling drill stuck occurs, and the change of the drilling tool characteristic data of the cycle in which drilling drill stuck occurs is obtained; combined with the preset correlation between the change of the drilling tool characteristic data and the drilling drill stuck type According to the changes in the drill tool characteristic data during the period when the drilling stuck occurs, the drilling stuck type during the period when the drilling stuck occurs is determined. Compared with the technical solution of subjective manual judgment of the drill stuck type in the existing technology, by determining the changes in the drill tool characteristic data during the period when the drilling stuck occurs, and combining the preset correlation between the changes in the drill tool characteristic data and the drilling stuck type, the drilling stuck type during the period when the drilling stuck occurs can be accurately determined, and the drilling stuck type can be automatically identified, which solves the problems of low accuracy and efficiency easily caused by manual judgment of the drill stuck type in the existing technology, and improves the accuracy and efficiency of identifying the drilling stuck type.

[0118] As described above, an embodiment of the present invention proposes an analysis method for processing the original hanging weight and torque parameters and converting them into data features that can be used to monitor different causes of drill sticking. This solves the problem of being unable to identify the type of drill sticking based on the original parameters while drilling, achieves accurate identification of the causes of drill sticking accidents, and improves the scientific level of drill sticking identification at the drilling site.

[0119] The present invention also provides an apparatus for identifying the type of stuck drill pipe in a well, as described in the following embodiments. Since the principles of this apparatus for solving problems are similar to those of the method for identifying the type of stuck drill pipe in a well, the implementation of this apparatus can be referenced to the implementation of the method for identifying the type of stuck drill pipe in a well, and any repetitions will not be repeated.

[0120] The embodiment of the present invention also provides a device for identifying the type of drill bit stuck in drilling, which is used to automatically identify the type of drill bit stuck in drilling, thereby improving the accuracy and efficiency of identifying the type of drill bit stuck in drilling. Figure 3 As shown, the device includes:

[0121] The drilling tool characteristic data recording module 301 is used to record the drilling tool characteristic data of the drilling tool during each drilling tool connection cycle. The drilling tool connection cycle is used to represent the period in which the drilling tool sequentially completes the drilling operation, the connection operation, the drilling operation, and the drilling operation. The drilling tool characteristic data includes the lifting and lowering of the suspended weight characteristic data, the lowering of the suspended weight characteristic data, and the rotational torque characteristic data.

[0122] The drill tool characteristic data change determination module 302 is configured to compare the drill tool characteristic data of the drilling stuck period with the drill tool characteristic data of the period immediately preceding the drilling stuck period to determine the change in the drill tool characteristic data of the drilling stuck period.

[0123] The drilling stuck drill type determination module 303 is used to determine the drilling stuck drill type in the period when the drilling stuck drill occurs according to the changes in the drilling tool characteristic data in the period when the drilling stuck drill occurs, based on the preset correlation between the changes in the drilling tool characteristic data and the drilling stuck drill type.

[0124] In one embodiment, the above-mentioned lifting weight characteristic data includes a static lifting weight value and a dynamic lifting weight value;

[0125] The drilling tool characteristic data recording module is specifically used for:

[0126] During each drilling cycle, when the drill bit is pulled out of the well, the distance the drill bit is lifted and the real-time suspended weight of the drill bit as the drill bit is lifted are recorded;

[0127] When the drill bit is lifted up by a distance less than or equal to a first preset distance, the maximum value of the real-time drill tool hanging weight values as the drill bit is lifted up is used as the static lifting hanging weight value;

[0128] When the drill bit is lifted up by a distance greater than the first preset distance and less than or equal to the second preset distance, the average value of the real-time drill tool hanging weight value as the drill bit is lifted up is used as the dynamic lifting hanging weight value.

[0129] In one embodiment, the above-mentioned lowering hanging weight characteristic data includes a static lowering hanging weight value and a dynamic lowering hanging weight value;

[0130] The drilling tool characteristic data recording module is specifically used for:

[0131] During each drilling cycle, when the drill bit completes the single-thread connection operation and performs the drilling operation, the drill bit lowering distance and the real-time drill bit hanging weight value as the drill bit is lowered are recorded;

[0132] When the drill bit lowering distance is less than or equal to the third preset distance, the minimum value of the real-time drill tool hanging weight values when the drill bit is lowered is used as the static lowering hanging weight value;

[0133] When the drill bit lowering distance is greater than the third preset distance and less than or equal to the fourth preset distance, the average value of the real-time drill tool hanging weight values as the drill bit is lowered is used as the dynamic lowering hanging weight value.

[0134] In one embodiment, the rotation torque characteristic data includes a static rotation torque value and a dynamic rotation torque value;

[0135] The drilling tool characteristic data recording module is specifically used for:

[0136] When the drilling tool performs the drilling operation in each drilling cycle, the rotation time of the drill bit and the real-time rotation torque value as the drill bit rotates are recorded;

[0137] When the drill bit rotation time is less than or equal to the first preset time, the maximum value of the real-time rotation torque values as the drill bit rotates is used as the static rotation torque value;

[0138] When the drill bit rotation time is greater than the first preset time and less than or equal to the second preset time, the average value of the real-time rotation torque values along with the rotation of the drill bit is used as the dynamic rotation torque value.

[0139] In one embodiment, the drilling tool characteristic data change determination module is specifically configured to:

[0140] The drill tool characteristic data of the period when drilling stuck occurs are compared with the drill tool characteristic data of the period before the period when drilling stuck occurs, and the dynamic increase and decrease of the static lifting hanging weight value, dynamic lifting hanging weight value, static lowering hanging weight value, dynamic lowering hanging weight value, static rotational torque value and dynamic rotational torque value of the period when drilling stuck occurs are obtained.

[0141] In one embodiment, Figure 4 As shown, it may also include:

[0142] The association relationship presetting module 304 is used to:

[0143] The relationship between changes in drilling tool characteristic data and drilling stuck types is preset as follows:

[0144] Correlate changes in drill tool characteristic data, including increases in static lifting weight, decreases in static lowering weight, and increases in dynamic rotational torque, with the type of drill bit stuck in the cuttings bed;

[0145] Establish a correlation between the changes in drilling tool characteristic data, including the increase in static lifting weight value and the static rotation torque value that first increases and then decreases, and the type of differential pressure sticking;

[0146] Establish an association between the drill tool characteristic data changes, including the increase in the dynamic lifting hanging weight value and the increase or decrease in the dynamic lowering hanging weight value that do not exceed the preset value, and the keyway drill stuck type;

[0147] The changes in the characteristic data of the drill tool, including the dynamic lifting hanging weight value first increasing and then decreasing, and the dynamic rotation torque value increasing, are associated with the type of drill bit sticking due to reduced diameter.

[0148] In one embodiment, the drilling stuck pipe type determination module is specifically configured to:

[0149] The dynamic increase and decrease of the static lifting suspended weight value, dynamic lifting suspended weight value, static lowering suspended weight value, dynamic lowering suspended weight value, static rotational torque value and dynamic rotational torque value in the period when drilling stuck occurs are matched in the above-mentioned association relationship, and the drilling stuck type that matches the above-mentioned dynamic increase and decrease changes is determined as the drilling stuck type in the period when drilling stuck occurs.

[0150] In one embodiment, it may further include:

[0151] Alarm module, used for:

[0152] If, in combination with the preset correlation between the changes in the drill tool characteristic data and the drilling stuck type, the drilling stuck type in the period in which the drilling stuck occurs cannot be determined based on the changes in the drill tool characteristic data in the period in which the drilling stuck occurs, an alarm message indicating that the drilling stuck type cannot be determined and the changes in the drill tool characteristic data in the period in which the drilling stuck occurs are issued.

[0153] Based on the above invention concept, Figure 5 As shown, the present invention also proposes a computer device 500, including a memory 510, a processor 520 and a computer program 530 stored in the memory 510 and executable on the processor 520, wherein the processor 520 implements the above-mentioned method for identifying the type of drilling stuck when executing the computer program 530.

[0154] An embodiment of the present invention further provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the method for identifying the type of stuck drill pipe is implemented.

[0155] An embodiment of the present invention further provides a computer program product, which includes a computer program. When the computer program is executed by a processor, the method for identifying the type of stuck drill pipe is implemented.

[0156] In the embodiment of the present invention, the drill tool characteristic data of the drill tool in the drilling process is recorded in each drill tool connection cycle; the drill tool connection cycle is used to characterize the cycle in which the drill tool completes the drilling operation, the single-thread connection operation, the drilling operation and the drilling operation in sequence; the drill tool characteristic data includes the lifting weight characteristic data, the lowering weight characteristic data and the rotation torque characteristic data; the drill tool characteristic data of the cycle in which the drilling drill is stuck is compared with the drill tool characteristic data of the previous cycle in which the drilling drill is stuck, and the change of the drill tool characteristic data of the cycle in which the drilling drill is stuck is obtained; the relationship between the preset drill tool characteristic data change and the drilling drill stick type is combined. According to the changes in the drill tool characteristic data during the period when the drilling stuck occurs, the drilling stuck type during the period when the drilling stuck occurs is determined. Compared with the technical solution of subjective manual judgment of the drill stuck type in the existing technology, by determining the changes in the drill tool characteristic data during the period when the drilling stuck occurs, and combining the preset correlation between the changes in the drill tool characteristic data and the drilling stuck type, the drilling stuck type during the period when the drilling stuck occurs can be accurately determined, and the drilling stuck type can be automatically identified, which solves the problems of low accuracy and efficiency easily caused by manual judgment of the drill stuck type in the existing technology, and improves the accuracy and efficiency of identifying the drilling stuck type.

[0157] It will be understood by those skilled in the art that embodiments of the present invention may be provided as methods, systems, or computer program products. Thus, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Furthermore, the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0158] The present invention is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowcharts and / or block diagrams, as well as combinations of processes and / or blocks in the flowcharts and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowcharts and / or block diagrams. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0159] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0160] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing the instructions executed on the computer or other programmable device for implementing the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0161] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for identifying the type of stuck drill pipe in drilling, characterized in that: include: Record the drilling tool characteristic data of the drilling tool during each drilling tool connection cycle; The drilling tool single-thread connection cycle is used to characterize the cycle of the drilling tool completing the pull-out operation, single-thread connection operation, drilling operation and drilling operation in sequence; the drilling tool characteristic data includes lifting suspended weight characteristic data, lowering suspended weight characteristic data and rotation torque characteristic data; Comparing the drill tool characteristic data of the period in which the drill bit is stuck with the drill tool characteristic data of the period before the period in which the drill bit is stuck, to obtain a change in the drill tool characteristic data of the period in which the drill bit is stuck; In combination with a preset correlation between changes in drilling tool characteristic data and drilling stuck types, the drilling stuck type in the period when the drilling stuck occurs is determined based on the changes in the drilling tool characteristic data; The lifting weight characteristic data includes a static lifting weight value and a dynamic lifting weight value; the lowering weight characteristic data includes a static lowering weight value and a dynamic lowering weight value; the rotation torque characteristic data includes a dynamic rotation torque value; Recording drilling tool characteristic data of the drilling tool during each drilling cycle, including: when the drilling tool performs a pull-out operation during each drilling cycle, recording the drill bit lifting distance and the real-time drill tool hanging weight value as the drill bit is lifted; when the drill bit lifting distance is less than or equal to a first preset distance, using the maximum value of the real-time drill tool hanging weight values as the drill bit is lifted as the static lifting hanging weight value; when the drill bit lifting distance is greater than the first preset distance and less than or equal to a second preset distance, using the average value of the real-time drill tool hanging weight values as the drill bit is lifted as the dynamic lifting hanging weight value; During each drilling cycle, when the drill tool completes the single-thread connection operation and performs the drilling operation, the drill bit lowering distance and the real-time drill tool hanging weight value as the drill bit is lowered are recorded; when the drill bit lowering distance is less than or equal to a third preset distance, the minimum value of the real-time drill tool hanging weight values as the drill bit is lowered is used as the static lowering hanging weight value; when the drill bit lowering distance is greater than the third preset distance and less than or equal to a fourth preset distance, the average value of the real-time drill tool hanging weight values as the drill bit is lowered is used as the dynamic lowering hanging weight value; During each drilling cycle, when the drilling tool performs a drilling operation, the drill bit rotation duration and the real-time rotation torque value associated with the drill bit rotation are recorded; when the drill bit rotation duration is greater than a first preset duration and less than or equal to a second preset duration, the average value of the real-time rotation torque values associated with the drill bit rotation is used as the dynamic rotation torque value; The method further comprises: The relationship between changes in drilling tool characteristic data and drilling stuck types is preset as follows: Correlate changes in drill tool characteristic data, including increases in static lifting weight, decreases in static lowering weight, and increases in dynamic rotational torque, with the type of drill bit stuck in the cuttings bed; The change of the characteristic data of the drill tool, including the increase of the dynamic lifting hanging weight value and the increase or decrease of the dynamic lowering hanging weight value not exceeding the preset value, is associated with the keyway drill stuck type.

2. The method according to claim 1, wherein The drill tool characteristic data of the period when the drilling stuck occurs is compared with the drill tool characteristic data of the period before the period when the drilling stuck occurs, and the change of the drill tool characteristic data of the period when the drilling stuck occurs is obtained, including: The drill tool characteristic data of the period when drilling stuck occurs are compared with the drill tool characteristic data of the period before the period when drilling stuck occurs, and the dynamic increase and decrease of the static lifting hanging weight value, dynamic lifting hanging weight value, static lowering hanging weight value, dynamic lowering hanging weight value and dynamic rotation torque value of the period when drilling stuck occurs are obtained.

3. The method according to claim 2, wherein According to the changes in the drilling tool characteristic data during the drilling stuck period, the drilling stuck type during the drilling stuck period is determined, including: The dynamic increase and decrease of the static lifting suspended weight value, the dynamic lifting suspended weight value, the static lowering suspended weight value, the dynamic lowering suspended weight value and the dynamic rotation torque value in the period when drilling stuck occurs are matched in the said association relationship, and the drilling stuck type that matches the said dynamic increase and decrease changes is determined as the drilling stuck type in the period when drilling stuck occurs.

4. The method according to claim 1, wherein Also includes: If, in combination with the preset correlation between the changes in the drill tool characteristic data and the drilling stuck type, the drilling stuck type in the period in which the drilling stuck occurs cannot be determined based on the changes in the drill tool characteristic data in the period in which the drilling stuck occurs, an alarm message indicating that the drilling stuck type cannot be determined and the changes in the drill tool characteristic data in the period in which the drilling stuck occurs are issued.

5. A device for identifying the type of drill bit stuck in drilling, characterized in that: include: The drilling tool characteristic data recording module is used to record the drilling tool characteristic data of the drilling tool during each drilling tool connection cycle; The drilling tool single-thread connection cycle is used to characterize the cycle of the drilling tool completing the pull-out operation, single-thread connection operation, drilling operation and drilling operation in sequence; the drilling tool characteristic data includes lifting suspended weight characteristic data, lowering suspended weight characteristic data and rotation torque characteristic data; a drill tool characteristic data change determination module, configured to compare the drill tool characteristic data of a drilling stuck period with the drill tool characteristic data of a period immediately preceding the drilling stuck period to determine a change in the drill tool characteristic data of the drilling stuck period; A drilling stuck drill type determination module is used to determine the drilling stuck drill type in the drilling stuck drill period according to the change of the drilling tool characteristic data in the drilling stuck drill period; The lifting weight characteristic data includes a static lifting weight value and a dynamic lifting weight value; the lowering weight characteristic data includes a static lowering weight value and a dynamic lowering weight value; the rotation torque characteristic data includes a dynamic rotation torque value; The drilling tool characteristic data recording module is specifically used for: When the drill bit performs the drilling operation during each drilling cycle, the drill bit lifting distance and the real-time drill bit hanging weight value as the drill bit is lifted are recorded; when the drill bit lifting distance is less than or equal to a first preset distance, the maximum value of the real-time drill bit hanging weight values as the drill bit is lifted is used as the static lifting hanging weight value; when the drill bit lifting distance is greater than the first preset distance and less than or equal to a second preset distance, the average value of the real-time drill bit hanging weight values as the drill bit is lifted is used as the dynamic lifting hanging weight value; During each drilling cycle, when the drill tool completes the single-thread connection operation and performs the drilling operation, the drill bit lowering distance and the real-time drill tool hanging weight value as the drill bit is lowered are recorded; when the drill bit lowering distance is less than or equal to a third preset distance, the minimum value of the real-time drill tool hanging weight values as the drill bit is lowered is used as the static lowering hanging weight value; when the drill bit lowering distance is greater than the third preset distance and less than or equal to a fourth preset distance, the average value of the real-time drill tool hanging weight values as the drill bit is lowered is used as the dynamic lowering hanging weight value; During each drilling cycle, when the drilling tool performs a drilling operation, the drill bit rotation duration and the real-time rotation torque value associated with the drill bit rotation are recorded; when the drill bit rotation duration is greater than a first preset duration and less than or equal to a second preset duration, the average value of the real-time rotation torque values associated with the drill bit rotation is used as the dynamic rotation torque value; The device also includes: an association relationship pre-setting module, which is used to pre-set the association relationship between the change of drill tool characteristic data and the drilling stuck drill type in the following manner: establishing an association relationship between the change of drill tool characteristic data including an increase in the static lifting hanging weight value, a decrease in the static lowering hanging weight value and an increase in the dynamic rotational torque value and the cuttings bed stuck drill type; establishing an association relationship between the change of drill tool characteristic data including an increase in the dynamic lifting hanging weight value and an increase or decrease in the dynamic lowering hanging weight value not exceeding a preset value and the keyway stuck drill type.

6. The device according to claim 5, characterized in that The module for determining changes in drilling tool characteristic data is specifically used to: The drill tool characteristic data of the period when drilling stuck occurs are compared with the drill tool characteristic data of the period before the period when drilling stuck occurs, and the dynamic increase and decrease of the static lifting hanging weight value, dynamic lifting hanging weight value, static lowering hanging weight value, dynamic lowering hanging weight value and dynamic rotation torque value of the period when drilling stuck occurs are obtained.

7. The device according to claim 6, characterized in that The drilling stuck drill type determination module is specifically used for: The dynamic increase and decrease of the static lifting suspended weight value, the dynamic lifting suspended weight value, the static lowering suspended weight value, the dynamic lowering suspended weight value and the dynamic rotation torque value in the period when drilling stuck occurs are matched in the said association relationship, and the drilling stuck type that matches the said dynamic increase and decrease changes is determined as the drilling stuck type in the period when drilling stuck occurs.

8. The device according to claim 5, wherein Also includes: Alarm module, used for: If, in combination with the preset correlation between the changes in the drill tool characteristic data and the drilling stuck type, the drilling stuck type in the period in which the drilling stuck occurs cannot be determined based on the changes in the drill tool characteristic data in the period in which the drilling stuck occurs, an alarm message indicating that the drilling stuck type cannot be determined and the changes in the drill tool characteristic data in the period in which the drilling stuck occurs are issued.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein: When the processor executes the computer program, the method according to any one of claims 1 to 4 is implemented.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 4 is implemented.

11. A computer program product, characterized in that The computer program product comprises a computer program, and when the computer program is executed by a processor, the method according to any one of claims 1 to 4 is implemented.

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