Penetration time limit optimization method based on real-time measurement of rock chip flow, terminal and medium
By measuring cuttings flow rate in real time, calculating cuttings return rate, and optimizing drilling parameters according to well inclination type, the problem of low drilling efficiency caused by insufficient wellbore cleaning was solved, reducing unnecessary cleaning operation time and improving drilling efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PETROCHINA CO LTD
- Filing Date
- 2022-05-17
- Publication Date
- 2026-08-04
AI Technical Summary
How to evaluate wellbore cleanliness by cuttings return volume, optimize drilling operations, reduce unnecessary wellbore cleaning time in drilling footage, and increase the percentage of pure drilling time in total drilling time.
By calculating and measuring cuttings flow rate in real time, including the weight of fine cuttings that the cuttings weighing device could not measure, the theoretical and actual return values of cuttings volume, the instantaneous return rate and the cumulative return rate of cuttings, drilling parameters are optimized according to the well inclination type, and corresponding cleaning operations are carried out.
It effectively reduces the operation time and frequency caused by inadequate cuttings removal, prevents drilling accidents, and improves drilling footage efficiency.
Smart Images

Figure CN117108266B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of drilling technology, specifically to a method for optimizing drilling footage efficiency based on real-time cuttings flow rate measurement, a terminal, and a medium. Background Technology
[0002] Drilling efficiency typically refers to the time spent on various operations during drilling production and the percentage of total drilling time. Analyzing drilling efficiency helps determine the rationality of time utilization, providing a basis for improving drilling speed and economic benefits. During the drilling process, the entire drilling time can be divided into production time and non-production time. Production time can be further divided into drilling footage time, logging time, cementing time, and auxiliary work time. Drilling footage time is further subdivided into pure drilling time, tripping time, single-joint connection time, reaming time, bit changing time, and mud circulation time. Among drilling footage time, wellbore cleaning time has a direct impact on drilling efficiency.
[0003] Drilling cuttings generate additional operational time, such as increased reaming cycles, circulation time, and short trips, all of which affect drilling footage time. Furthermore, inadequate cuttings cleaning can lead to drill string accidents and even wellbore failure. Failure to implement appropriate wellbore cleaning operations will reduce overall well drilling efficiency. In recent years, cuttings weighing technology has developed rapidly, enabling real-time acquisition of the amount of cuttings returned from the wellhead. This parameter helps monitor wellbore cleanliness. Therefore, how to evaluate wellbore cleanliness based on cuttings return volume, optimize drilling operations, reduce unnecessary wellbore cleaning time in drilling footage time, increase the percentage of pure drilling time in total drilling time, and ultimately improve drilling footage efficiency is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention
[0004] The technical problem to be solved by this invention is how to evaluate the cleanliness of the wellbore by the amount of cuttings returned, optimize drilling operations, and thereby reduce unnecessary wellbore cleaning operation time in the footage time. The purpose is to provide a method, terminal and medium for optimizing footage efficiency based on real-time measurement of cuttings flow rate, which solves the problem of increasing the percentage of pure drilling time in the total drilling time, thereby improving footage efficiency.
[0005] This invention is achieved through the following technical solution:
[0006] An optimization method for advance footage based on real-time cuttings flow rate measurement includes the following steps:
[0007] Calculate the weight of fine rock fragments that the rock cutting weighing device could not detect;
[0008] Calculate the theoretical return value and the actual return value of rock cuttings volume;
[0009] Calculate the instantaneous cuttings return rate and the cumulative cuttings return rate;
[0010] The entire well is classified by well inclination type, and further divided into vertical well section, directional well section, and horizontal well section;
[0011] Optimize drilling footage efficiency based on well inclination type, instantaneous cuttings return rate, and cumulative cuttings return rate.
[0012] Specifically, calculate the weight M of fine rock fragments that the rock fragment weighing device failed to measure. 细碎岩屑 :
[0013] M 细碎岩屑 =LGS×Q×Δt×ρ m -Q×Δt×MBT
[0014] Where LGS represents low solids content, Q represents drilling fluid displacement, and ρ m Δt is the drilling fluid density, MBT is the drilling fluid bentonite content, and Δt is the time taken for the cuttings weighing device to weigh one cuttings.
[0015] Calculate the theoretical return value V of rock cuttings volume within Δt. 理论 Actual returned value of rock cuttings volume V 实际 :
[0016]
[0017]
[0018] Where D is the drill bit diameter, ΔH is the drilling depth of the drill bit in time Δt, M is the mass of rock cuttings measured by the rock cuttings weighing device in time Δt, and ρ is the density of rock cuttings.
[0019] Calculate the instantaneous cuttings return rate R 瞬时 :
[0020] Calculate the cumulative cuttings return rate R 累计 : Where V represents the value of V from the drilling start time to the current time. 实际 The sum of these values, where H is the total drilling depth from the start of drilling to the current moment.
[0021] Specifically, the optimization of drilling footage time includes:
[0022] S1. Determine if the instantaneous cuttings return rate is less than the given value. If not, keep the current parameters unchanged and continue drilling. If yes, execute S2.
[0023] S2. Change the corresponding drilling parameters according to the well inclination type;
[0024] S3, Waiting for the set time t;
[0025] S4. Determine if the cumulative cuttings return rate is less than the set value. If not, keep the current parameters unchanged and continue drilling. If yes, execute S5.
[0026] S5. Determine whether the changed drilling parameters have reached the threshold. If not, proceed to step S2; otherwise, proceed to step S6.
[0027] S6. Stop drilling and clean up rock cuttings during the advance.
[0028] Preferably, the method for classifying the wellbore deviation type includes:
[0029] Vertical well section: The well section with a deviation of 0 to 30 degrees;
[0030] Deviated well section: Well section with a deviation of 30 to 60 degrees;
[0031] Horizontal well section: A well section with an inclination greater than 60 degrees.
[0032] Preferably, the methods for cleaning rock cuttings during the cuttings advance are classified into cleaning types, namely primary cleaning, secondary cleaning, and tertiary cleaning.
[0033] One-stage cleaning: The process by which the drill bit rotates at the bottom of the well, breaks up the rock, and the drilling fluid carries the cuttings out.
[0034] Secondary cleaning: the process of drilling holes and circulating mud to remove rock debris;
[0035] Three cleaning steps: the process of breaking up the cuttings bed during short-lift drilling.
[0036] As one implementation method, the well inclination type is determined, and optimization operations are performed based on the well inclination type;
[0037] If the well inclination type is a vertical section, then perform the following steps:
[0038] A1. Determine the instantaneous cuttings return rate R 瞬时 Check if it is less than the given value. If not, keep the current parameter unchanged and continue drilling. If yes, execute A2.
[0039] A2. Increase drilling fluid discharge and drill pipe rotation speed;
[0040] A3. Wait for the set time t;
[0041] A4. Determine the cumulative cuttings return rate R 累计 Is it less than the set value? If not, keep the current parameters unchanged and continue drilling; if yes, execute A5.
[0042] A5. Determine whether the drilling fluid discharge rate and drill pipe rotation speed have reached the threshold. If not, skip to step A2; otherwise, proceed to step A6.
[0043] A6. Stop drilling and perform secondary cleaning or switch to a different mud setting.
[0044] As one implementation method, the well inclination type is determined, and optimization operations are performed based on the well inclination type;
[0045] If the well inclination type is a build-up section, then perform the following steps:
[0046] B1. Determine the instantaneous cuttings return rate R 瞬时 Is it less than the given value? If not, keep the current parameter unchanged and continue drilling; if yes, proceed to step B2.
[0047] B2. Increase the number of eye swipes and the cycle time;
[0048] B3. Wait for the set time t;
[0049] B4. Determine the cumulative cuttings return rate R 累计 Is it less than the set value? If not, keep the current parameters unchanged and continue drilling; if yes, execute B5.
[0050] B5. Determine whether the number of eye swipes and the cycle time have reached the threshold. If not, proceed to step B2; otherwise, proceed to step B6.
[0051] B6. Stop drilling and perform three cleaning operations.
[0052] As one implementation method, the well inclination type is determined, and optimization operations are performed based on the well inclination type;
[0053] If the well inclination type is a horizontal well section, then perform the following steps:
[0054] C1. Determine the instantaneous cuttings return rate R 瞬时 Is it less than the given value? If not, keep the current parameter unchanged and continue drilling; if yes, proceed to step C2.
[0055] C2. Perform short-start drilling operations;
[0056] C3. Wait for the set time t;
[0057] C4. Determine the cumulative cuttings return rate R 累计 Check if it is less than the set value. If not, keep the current parameters unchanged and continue drilling. If yes, execute C5.
[0058] C5. Determine whether the number of short-start drilling operations has reached the threshold. If not, proceed to step C2; otherwise, proceed to step C6.
[0059] C6. Stop drilling and conduct an accident investigation.
[0060] A terminal for optimizing cuttings flow rate based on real-time metering of cuttings flow rate includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the aforementioned method for optimizing cuttings flow rate based on real-time metering of cuttings flow rate.
[0061] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the above-described method for optimizing cuttings flow rate based on real-time metering.
[0062] Compared with the prior art, the present invention has the following advantages and beneficial effects:
[0063] This invention calculates the instantaneous return rate and cumulative return rate of cuttings based on real-time cuttings flow rate, and optimizes drilling operations according to well inclination type. It can reduce or eliminate the time and number of operations caused by inadequate cuttings removal; effectively prevent drilling accidents and reduce non-productive time; and is convenient to operate in actual drilling processes with good overall application results. Attached Figure Description
[0064] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the invention. These drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, but do not constitute a limitation on the embodiments of the present invention.
[0065] Figure 1 This is a flowchart of the method for optimizing cuttings flow rate based on real-time metering according to the present invention.
[0066] Figure 2 This is a schematic diagram of the optimized operation process for the vertical well section according to the present invention.
[0067] Figure 3 This is a schematic diagram of the optimized operation process for the deviated well section according to the present invention.
[0068] Figure 4 This is a schematic diagram of the optimized operation process for a horizontal well section according to the present invention. Detailed Implementation
[0069] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention.
[0070] It should also be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.
[0071] Where there is no conflict, the embodiments and features described in the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0072] Example 1
[0073] As shown in the figure, this embodiment provides a method for optimizing cuttings flow rate based on real-time metering, including the following steps:
[0074] Before performing specific calculations, it is necessary to obtain drilling-related parameters. These parameters can be collected using an integrated logging system and a cuttings weighing device. The drilling-related parameters include drill bit diameter, low solids content, drilling fluid flow rate, drilling fluid density, drilling fluid bentonite content, the time taken for the cuttings weighing device to weigh one cuttings, and the mass of cuttings measured by the cuttings weighing device in a single weighing.
[0075] Calculate the weight M of fine rock fragments that the rock cutting weighing device could not measure. 细碎岩屑 :
[0076] M 细碎岩屑 =LGS×Q×Δt×ρ m -Q×Δt×MBT
[0077] Where LGS represents low solids content, Q represents drilling fluid displacement, and ρ m Δt is the drilling fluid density, MBT is the bentonite content of the drilling fluid, and Δt is the time taken for the cuttings weighing device to weigh one cuttings.
[0078] Calculate the theoretical return value V of rock cuttings volume within Δt. 理论 Actual returned value of rock cuttings volume V 实际 :
[0079]
[0080]
[0081] Where D is the drill bit diameter, ΔH is the drilling depth of the drill bit in time Δt, M is the mass of rock cuttings measured by the rock cuttings weighing device in time Δt, and ρ is the density of rock cuttings.
[0082] Based on the theoretical rock cuttings volume V 理论 Compared with the actual volume of returned rock cuttings V 实际 Calculate the instantaneous cuttings return rate R 瞬时 :
[0083] Based on the theoretical rock cuttings volume V 理论 Compared with the actual volume of returned rock cuttings V实际 Calculate the cumulative cuttings return rate R 累计 : Where V represents the value of V from the drilling start time to the current time. 实际 The sum of these values, where H is the total drilling depth from the start of drilling to the current moment.
[0084] The well is classified into three types based on its inclination: vertical well section, directional well section, and horizontal well section. The classification of the well into three types includes: vertical well section: well section with an inclination of 0 to 30 degrees; directional well section: well section with an inclination of 30 to 60 degrees; and horizontal well section: well section with an inclination greater than 60 degrees.
[0085] Optimize drilling footage efficiency based on well inclination type, instantaneous cuttings return rate, and cumulative cuttings return rate.
[0086] In this embodiment, drilling parameters during the drilling process are judged by the instantaneous cuttings return rate and the cumulative cuttings return rate, and it is determined whether they are reasonable. Optimization operations are then carried out in a targeted manner according to the well deviation type to improve the footage failure rate.
[0087] Example 2
[0088] This embodiment describes the drilling footage aging optimization method from Embodiment 1, which includes:
[0089] S1. Determine if the instantaneous cuttings return rate is less than the given value. If not, keep the current parameters unchanged and continue drilling. If yes, execute S2.
[0090] S2. Change the corresponding drilling parameters according to the well inclination type;
[0091] S3, Waiting for the set time t;
[0092] S4. Determine if the cumulative cuttings return rate is less than the set value. If not, keep the current parameters unchanged and continue drilling. If yes, execute S5.
[0093] S5. Determine whether the changed drilling parameters have reached the threshold. If not, proceed to step S2; otherwise, proceed to step S6.
[0094] S6. Stop drilling and clean up rock cuttings during the advance.
[0095] The methods for cleaning rock cuttings during the advance operation are classified into cleaning types, namely primary cleaning, secondary cleaning and tertiary cleaning;
[0096] One-stage cleaning: The process by which the drill bit rotates at the bottom of the well, breaks up the rock, and the drilling fluid carries the cuttings out.
[0097] Secondary cleaning: the process of drilling holes and circulating mud to remove rock debris;
[0098] Three cleaning steps: the process of breaking up the cuttings bed during short-lift drilling.
[0099] In step S2 above, optimization operations need to be performed based on the specific well inclination type. Therefore, the well inclination type needs to be determined before performing the optimization operation.
[0100] like Figure 2 As shown, if the well inclination type is a vertical well section, then the following steps are performed:
[0101] A1. Determine the instantaneous cuttings return rate R 瞬时 Is it less than the given value (80%)? If not, keep the current parameters unchanged and continue drilling; if yes, execute A2.
[0102] A2. Increase drilling fluid flow rate and drill pipe rotation speed; this step avoids the need for secondary and tertiary cleaning operations due to inadequate cuttings removal. Specifically, the flow rate and rotation speed should be increased by 5% per operation.
[0103] A3. Waiting time t (20 min);
[0104] A4. Determine the cumulative cuttings return rate R 累计 Is it less than the set value (95%)? If not, keep the current parameters unchanged and continue drilling. If yes, execute A5.
[0105] A5. Determine whether the drilling fluid discharge rate and drill pipe rotation speed have reached the threshold. If not, skip to step A2; otherwise, proceed to step A6.
[0106] A6. Stop drilling and perform secondary cleaning or switch to a different mud setting.
[0107] The method assesses whether to increase drilling fluid flow and drill pipe rotation speed by analyzing the instantaneous cuttings return rate, and judges the rationality of the operation by analyzing the cumulative cuttings return rate, rather than relying on experience. Compared with existing methods, this method allows for more appropriate cleaning operations, avoiding increased non-pure drilling time due to drilling stoppages or secondary cleaning. Therefore, this method can optimize drilling operations, thereby reducing unnecessary wellbore cleaning time in the footage advance, increasing the percentage of pure drilling time in the total drilling time, and achieving the goal of improving footage efficiency.
[0108] like Figure 3 As shown, if the well inclination type is a build-up section, then the following steps are performed:
[0109] B1. Determine the instantaneous cuttings return rate R 瞬时 Is it less than the given value (60%)? If not, keep the current parameters unchanged and continue drilling. If yes, proceed to step B2.
[0110] B2. Increase the number of eye swipes and the cycle time;
[0111] B3. Waiting time t (flexible adjustment);
[0112] B4. Determine the cumulative cuttings return rate R 累计 Is it less than the set value (85%)? If not, keep the current parameters unchanged and continue drilling; if yes, execute B5.
[0113] B5. Determine whether the number of eye swipes and the cycle time have reached the threshold. If not, proceed to step B2; otherwise, proceed to step B6.
[0114] B6. Stop drilling and perform three cleaning operations.
[0115] The method assesses whether to increase the number of reaming passes and cycle time by analyzing the instantaneous cuttings return rate, and judges the rationality of the operation by analyzing the cumulative cuttings return rate, rather than relying on experience. Compared with existing methods, this method allows for more appropriate cleaning operations, avoiding increased non-pure drilling time due to drilling stoppages or three cleaning cycles. Therefore, this method can optimize drilling operations, thereby reducing unnecessary wellbore cleaning time in the drilling footage, increasing the percentage of pure drilling time in the total drilling time, and ultimately improving drilling footage efficiency.
[0116] like Figure 4 As shown, if the well inclination type is a horizontal well section, then the following steps are performed:
[0117] C1. Determine the instantaneous cuttings return rate R 瞬时 Is it less than the given value (40%)? If not, keep the current parameters unchanged and continue drilling. If yes, proceed to step C2.
[0118] C2. Perform short-start drilling operations;
[0119] C3. Wait for the set time t;
[0120] C4. Determine the cumulative cuttings return rate R 累计 Is it less than the set value (60%)? If not, keep the current parameters unchanged and continue drilling. If yes, execute C5.
[0121] C5. Determine whether the number of short-start drilling operations has reached the threshold. If not, proceed to step C2; otherwise, proceed to step C6.
[0122] C6. Stop drilling and conduct an accident investigation.
[0123] The decision to perform a short trip-back operation is based on the instantaneous cuttings return rate, while the rationality of the operation is judged by the cumulative cuttings return rate, rather than relying on experience. Compared to existing methods, this approach allows for more appropriate drilling operations, avoiding increased non-pure drilling time due to accidents. Therefore, this method optimizes drilling operations, reducing the failure rate during footage advance and increasing the percentage of pure drilling time in the total drilling time, thereby improving footage efficiency.
[0124] Example 3
[0125] A terminal for optimizing cuttings flow rate based on real-time metering of cuttings flow rate includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it implements the steps of the aforementioned method for optimizing cuttings flow rate based on real-time metering of cuttings flow rate.
[0126] Memory is used to store software programs and modules. The processor executes various terminal functions and data processing by running the software programs and modules stored in memory. Memory can mainly consist of a program storage area and a data storage area. The program storage area can store the operating system, at least one executable program required for a given function, etc.
[0127] The storage data area can store data created based on the use of the terminal. Furthermore, the memory can include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory, or other volatile solid-state storage devices.
[0128] A computer-readable storage medium storing a computer program that, when executed by a processor, implements the steps of the aforementioned method for optimizing cuttings flow rate based on real-time metering.
[0129] Without loss of generality, computer-readable media can include computer storage media and communication media. Computer storage media include volatile and non-volatile, removable and non-removable media implemented using any method or technology for storing information such as computer-readable instruction data structures, program modules, or other data. Computer storage media include RAM, ROM, EPROM, EEPROM, flash memory or other solid-state storage technologies, CD-ROM, DVD or other optical storage, magnetic tape cassettes, magnetic tape, disk storage, or other magnetic storage devices. Of course, those skilled in the art will recognize that computer storage media are not limited to the above-mentioned types. The aforementioned system memories and mass storage devices can be collectively referred to as memory.
[0130] In the description of this specification, the references to terms such as "one embodiment / mode," "some embodiments / modes," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment / mode or example is included in at least one embodiment / mode or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment / mode or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments / modes or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments / modes or examples described in this specification, as well as the features of different embodiments / modes or examples.
[0131] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0132] Those skilled in the art should understand that the above embodiments are merely for illustrating the present invention and are not intended to limit the scope of the invention. Those skilled in the art can make other changes or modifications based on the above invention, and these changes or modifications still fall within the scope of the present invention.
Claims
1. A method for optimizing footage time limit based on real-time measurement of cuttings flow rate, characterized in that, Includes the following steps: Calculate the weight of fine rock fragments that the rock cutting weighing device could not detect; Calculate the theoretical return value and the actual return value of rock cuttings volume; Calculate the instantaneous cuttings return rate and the cumulative cuttings return rate; The entire well is classified by well inclination type, and further divided into vertical well section, directional well section, and horizontal well section; Optimize drilling footage efficiency based on well inclination type, instantaneous cuttings return rate, and cumulative cuttings return rate; The optimization of drilling footage time efficiency includes: S1. Determine if the instantaneous cuttings return rate is less than the given value. If not, keep the current parameters unchanged and continue drilling. If yes, execute S2. S2. Adjust the corresponding drilling parameters according to the well inclination type; if the well inclination type is a vertical well section, the drilling parameters to be changed are to increase the drilling fluid discharge rate and drill pipe rotation speed; if the well inclination type is a build-up well section, the drilling parameters to be changed are to increase the number of reaming operations and the circulation time; if the well inclination type is a horizontal well section, then perform short tripping operations. S3, wait for a set time ; S4. Determine if the cumulative cuttings return rate is less than the set value. If not, keep the current parameters unchanged and continue drilling. If yes, execute S5. S5. Determine whether the changed drilling parameters have reached the threshold. If not, proceed to step S2; otherwise, proceed to step S6. S6. Stop drilling and clean up rock cuttings during the advance.
2. The method for optimizing cuttings flow rate based on real-time metering for aging in advance, as described in claim 1, is characterized in that... Calculate the weight of fine rock fragments that the rock cutting weighing device could not measure. : ,in, With low solid content, This refers to the drilling fluid discharge rate. For drilling fluid density, The bentonite content in the drilling fluid. The time required for the rock cuttings weighing device to weigh one batch of rock cuttings; Calculation in Theoretical return value of internal rock cuttings volume Actual returned value of rock cuttings volume : , Where D is the drill bit diameter. For the drill bit in Drilling depth over time. For time The mass of rock cuttings measured by the internal rock cuttings weighing device. Density of rock fragments; Calculate the instantaneous return rate of rock cuttings : ; Calculate the cumulative cuttings return rate : ,in From the start of drilling to the current time The sum of the sums, This represents the total drilling depth from the start of drilling to the current moment.
3. The method for optimizing cuttings flow rate based on real-time metering for footage aging according to claim 1, characterized in that, Methods for classifying well inclination types include: Vertical well section: The well section with a deviation of 0 to 30 degrees; Deviated well section: Well section with a deviation of 30 to 60 degrees; Horizontal well section: A well section with an inclination greater than 60 degrees.
4. The method for optimizing cuttings flow rate based on real-time metering for aging in advance, as described in claim 3, is characterized in that... The methods for cleaning rock cuttings during the advance operation are classified into cleaning types, namely primary cleaning, secondary cleaning and tertiary cleaning; One-stage cleaning: The process by which the drill bit rotates at the bottom of the well, breaks up the rock, and the drilling fluid carries the cuttings out. Secondary cleaning: the process of drilling holes and circulating mud to remove rock debris; Three cleaning steps: the process of breaking up the cuttings bed during short-lift drilling.
5. The method for optimizing cuttings flow rate based on real-time metering for aging in advance, as described in claim 4, is characterized in that... Determine the well inclination type and perform optimization operations based on the well inclination type; If the well inclination type is a vertical section, then perform the following steps: A1. Determining the instantaneous return rate of rock cuttings Check if it is less than the given value. If not, keep the current parameter unchanged and continue drilling. If yes, execute A2. A2. Increase drilling fluid discharge and drill pipe rotation speed; A3. Waiting time setting ; A4. Determine the cumulative cuttings return rate Is it less than the set value? If not, keep the current parameters unchanged and continue drilling; if yes, execute A5. A5. Determine whether the drilling fluid discharge rate and drill pipe rotation speed have reached the threshold. If not, skip to step A2; otherwise, proceed to step A6. A6. Stop drilling and perform secondary cleaning or switch to a different mud setting.
6. The method for optimizing cuttings flow rate based on real-time metering for footage aging according to claim 4, characterized in that, Determine the well inclination type and perform optimization operations based on the well inclination type; If the well inclination type is a build-up section, then perform the following steps: B1. Determining the instantaneous return rate of rock cuttings Is it less than the given value? If not, keep the current parameter unchanged and continue drilling; if yes, proceed to step B2. B2. Increase the number of eye swipes and the cycle time; B3. Waiting time setting ; B4. Determine the cumulative cuttings return rate Is it less than the set value? If not, keep the current parameters unchanged and continue drilling; if yes, execute B5. B5. Determine whether the number of eye swipes and the cycle time have reached the threshold. If not, proceed to step B2; otherwise, proceed to step B6. B6. Stop drilling and perform three cleaning operations.
7. The method for optimizing cuttings advance time based on real-time cuttings flow rate measurement according to claim 4, characterized in that, Determine the well inclination type and perform optimization operations based on the well inclination type; If the well inclination type is a horizontal well section, then perform the following steps: C1. Determine the instantaneous return rate of rock cuttings. Is it less than the given value? If not, keep the current parameter unchanged and continue drilling; if yes, proceed to step C2. C2. Perform short-start drilling operations; C3. Waiting time setting ; C4. Determine the cumulative cuttings return rate Check if it is less than the set value. If not, keep the current parameters unchanged and continue drilling. If yes, execute C5. C5. Determine whether the number of short-start drilling operations has reached the threshold. If not, proceed to step C2; otherwise, proceed to step C6. C6. Stop drilling and conduct an accident investigation.
8. A cuttings flow rate-based real-time metering and footage aging optimization terminal, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the steps of the advance aging optimization method based on real-time measurement of cuttings flow as described in any one of claims 1-7.
9. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the steps of the advance aging optimization method based on real-time measurement of cuttings flow as described in any one of claims 1-7.