Method, device, electronic device and storage medium for predicting borehole diameter while drilling

Abstract

The present invention discloses a method, device, electronic device and storage medium for predicting borehole diameter while drilling. The method includes: determining a first mass of cuttings produced by a target well under a first working condition; the first working condition is the process of drilling a single joint or stand into the target well in the target well; determining a second mass of cuttings produced by the target well under a second working condition; the second working condition is the process of pulling and scratching a single joint or stand in the target well after the end of the first working condition; determining a third mass of cuttings produced by the target well under a third working condition; the third working condition is the process of circulating drilling fluid after the end of the second working condition; determining the target borehole diameter based on the first mass, the second mass and the third mass. The technical solution of the present application determines the target borehole diameter through the first mass, the second mass and the third mass, solves the limitations of borehole diameter measurement while drilling in application scenarios and maturity, and realizes the prediction of the change of the borehole diameter of the target well.

Description

Technical Field

[0001] The present invention relates to the technical field of oil exploration and development, and particularly relates to a method, device, electronic device and storage medium for predicting the borehole diameter while drilling. Background Art

[0002] With the continuous deepening of oil and gas exploration and development, complex structure wells such as horizontal wells and extended reach wells are widely used, and the difficulty and risk of drilling operations are also increasing. Due to the influence of various factors during the drilling process, it is extremely easy to cause irregular boreholes, which are likely to trigger downhole accidents, and in severe cases, even require sidetracking.

[0003] During the drilling operation, real-time tracking and analysis of the borehole diameter situation are helpful for timely and efficient treatment of irregular boreholes, and play a very important role in preventing downhole complex situations such as hole shrinkage, stuck pipe, and wellbore collapse. Currently, the measurement methods for borehole diameter mainly rely on electric logging or ultrasonic borehole diameter measurement while drilling, both of which require downhole tools to be lowered. The electric logging technology is mature but cannot be used while drilling. The application scenario and maturity of the ultrasonic borehole diameter measurement while drilling technology are both limited and cannot yet meet the promotion stage. Summary of the Invention

[0004] The present invention provides a method, device, electronic device and storage medium for predicting the borehole diameter while drilling to solve the limitations in application scenarios and maturity of borehole diameter measurement while drilling and achieve the prediction of the borehole diameter change of the target well.

[0005] According to one aspect of the present invention, there is provided a method for predicting the borehole diameter while drilling, the method comprising:

[0006] Determining a first mass of cuttings produced by the target well under a first working condition; the first working condition is the process of drilling a single joint or stand into the target well in the target well;

[0007] Determining a second mass of cuttings produced by the target well under a second working condition; the second working condition is the process of pulling and scratching a single joint or stand in the target well after the end of the first working condition;

[0008] Determining a third mass of cuttings produced by the target well under a third working condition; the third working condition is the process of circulating drilling fluid after the end of the second working condition;

[0009] Determining the borehole diameter while drilling based on the first mass, the second mass and the third mass.

[0010] According to another aspect of the present invention, there is provided a device for predicting the borehole diameter while drilling, the device comprising:

[0011] A first mass determination module for determining a first mass of cuttings produced by the target well under a first working condition; the first working condition is the process of drilling a single joint or stand into the target well in the target well;

[0012] A second quality determination module, configured to determine a second quality of cuttings produced by a target well under a second working condition; the second working condition is a process of pulling and scraping a single joint or a stand in the target well after the end of the first working condition.

[0013] A third quality determination module, configured to determine a third quality of cuttings produced by a target well under a third working condition; the third working condition is a process of circulating drilling fluid after the end of the second working condition.

[0014] A target wellbore diameter determination module, configured to determine the wellbore diameter while drilling based on the first quality, the second quality, and the third quality.

[0015] According to another aspect of the present invention, there is provided an electronic device, which includes:

[0016] At least one processor; and

[0017] A memory communicatively connected to the at least one processor; wherein,

[0018] The memory stores a computer program executable by the at least one processor, and when the computer program is executed by the at least one processor, the at least one processor is enabled to execute the wellbore diameter prediction method while drilling according to any embodiment of the present invention.

[0019] According to another aspect of the present invention, there is provided a computer-readable storage medium, which stores computer instructions for enabling a processor to implement the wellbore diameter prediction method while drilling according to any embodiment of the present invention when executed.

[0020] The technical solution of the embodiment of the present invention determines the first quality of cuttings produced by a target well under a first working condition; the first working condition is a process of drilling a single joint or a stand in the target well; then determines the second quality of cuttings produced by the target well under a second working condition; the second working condition is a process of pulling and scraping a single joint or a stand in the target well after the end of the first working condition; further determines the third quality of cuttings produced by the target well under a third working condition; the third working condition is a process of circulating drilling fluid after the end of the second working condition; and finally determines the target wellbore diameter based on the first quality, the second quality, and the third quality, solving the limitations of wellbore diameter measurement while drilling in application scenarios and maturity, and realizing the prediction of the change of the target wellbore diameter.

[0021] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0023] Figure 1 is a flowchart of a method for predicting the borehole diameter while drilling according to Embodiment 1 of the present invention;

[0024] Figure 2 is a schematic diagram of a chip falling in the cuttings returned from the target well applicable to the embodiments of the present invention;

[0025] Figure 3 is a comparison chart of the borehole diameter while drilling applicable to the embodiments of the present invention;

[0026] Figure 4 is a comparison chart of the borehole diameter while drilling and the electric logging borehole diameter applicable to the embodiments of the present invention;

[0027] Figure 5 is a comparison chart of the borehole diameter while drilling and the electric logging borehole diameter applicable to the embodiments of the present invention;

[0028] Figure 6 is a schematic structural diagram of a device for predicting the borehole diameter while drilling according to Embodiment 2 of the present invention;

[0029] Figure 7 is a schematic structural diagram of an electronic device for implementing the method for predicting the borehole diameter while drilling in the embodiments of the present invention. Detailed implementation manners

[0030] To enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] It should be noted that the terms "first", "second", "third", "target", etc. in the description, claims and above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily limit to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0032] Embodiment 1

[0033] Figure 1 The following is a flowchart of a method for predicting the borehole diameter while drilling provided in Embodiment 1 of the present invention. This embodiment is applicable to the situation of predicting the borehole diameter while drilling during the drilling process. This method can be executed by a device for predicting the borehole diameter while drilling, which can be implemented in the form of hardware and / or software, and the device for predicting the borehole diameter while drilling can be configured in an electronic device with the method for predicting the borehole diameter while drilling. As Figure 1 shown, the method includes:

[0034] S110. Determine the first mass of the cuttings produced under the first working condition in the target well; the first working condition is the process of drilling a single joint or stand into the target well in the target well.

[0035] Wherein, the first mass is the weight of the cuttings returned with the drilling fluid per meter of drilling a single joint or stand until the first working condition in the first working condition. The length of each single joint or stand connected is determined according to the specific working condition. If the well depth of the target well is 2000 meters and the length of the first single joint connected is 10 meters, then 2010 meters will be drilled during the drilling process. During this process, cuttings will be returned with the drilling fluid at 2001, 2002, 2003, 2004, 2005, 2006, 2009, and 2010 respectively. The mass of the cuttings returned each time is used as the first mass of the cuttings corresponding to the current borehole diameter while drilling. And in the subsequent second working condition, the second mass of the cuttings returned can represent the weight of the cuttings per meter in the well section of 2000 - 2010 meters. At the same time, the third mass is determined by using the mass of the cuttings remaining in the annulus generated in the current drilling well section returned in the third working condition, that is, the weight of the cuttings per meter in the well section of 2000 - 2010 meters. Thus, these masses can be used to accurately reflect the borehole diameter while drilling per meter in the well section of 2000 - 2010 meters.

[0036] Specifically, during the process of drilling a target well with a single drill pipe or a stand, downhole cuttings will return to the surface shale shaker with the drilling fluid from the bottom of the well. During this process, the first mass m corresponding to the drill diameter of the downhole cuttings returning to the target well with the drilling fluid is determined. z Meanwhile, using relevant software (not specifically limited), combined with data such as the dry-wet ratio of the cuttings and the solid content of the drilling fluid, the influence of the drilling fluid quality on the cuttings quality is excluded to ensure the accuracy of the first mass.

[0037] S120. Determine the second mass of the cuttings produced by the target well under the second working condition; the second working condition is the process of dragging and scratching a single drill pipe or a stand in the target well after the end of the first working condition.

[0038] Among them, the second mass is the weight of the cuttings returned during the process of dragging and scratching a single drill pipe or a stand in the target well, averaged over the well diameter corresponding to each meter of the single drill pipe (stand).

[0039] Optionally, after each single drill pipe or stand is drilled in the target well, by dragging and scratching the single drill pipe or stand in the target well, the first cuttings mass of the cuttings returning to the target well with the drilling fluid is determined; the cuttings returned at this time are the cuttings remaining in the target well during the first working condition, and the first cuttings mass also needs to use relevant software (not specifically limited), combined with data such as the dry-wet ratio of the cuttings and the solid content of the drilling fluid, to exclude the influence of the drilling fluid quality on the cuttings quality; then based on the first cuttings mass and the parameter value, the second mass of the cuttings is determined; the parameter value is the length of the single drill pipe or stand; that is, the second mass can be expressed by the following formula:

[0040]

[0041] Among them, m1 is the second mass, m z1 is the first cuttings mass, and L1 is the parameter value.

[0042] In this technical solution, the first cuttings mass and the parameter value are used to accurately determine the second mass of the cuttings through a formula, so as to facilitate more accurate calculation of the well diameter using the second mass of the cuttings in the follow-up, and reduce the error of well diameter calculation.

[0043] S130. Determine the third mass of the cuttings produced by the target well under the third working condition; the third working condition is the process of circulating the drilling fluid after the end of the second working condition.

[0044] Among them, the third mass is the weight of the cuttings returned from the target well under the third working condition, averaged over the well diameter corresponding to each meter of the well section. The third working condition also includes operations such as adjusting the performance of the drilling fluid or conducting wellbore cleaning.

[0045] Specifically, during the process of tripping in and out, adjusting the properties of the drilling fluid, or conducting wellbore cleaning, a portion of the cuttings retained in the well will return to the target well with the drilling fluid. Therefore, it is necessary to accurately obtain the mass of the cuttings returned under the third working condition, and then evenly distribute the mass of the cuttings to each meter position in the corresponding well section to represent the weight of the cuttings per meter in that well section, that is, the third mass of the cuttings, in order to avoid errors in the mass of the cuttings corresponding to the well diameter obtained.

[0046] Optionally, after the second working condition ends, during the process of circulating the drilling fluid, obtain the second mass of the cuttings that return to the target well with the drilling fluid; based on the second mass of the cuttings and the length of the drilling section, determine the third mass of the cuttings; that is, the third mass of the cuttings can be determined through the following formula:

[0047]

[0048] Wherein, m2 is the third mass, m z2 is the second mass of the cuttings, and L2 is the length of the drilling section. The length of the drilling section can be determined according to the actual working conditions and the position of the determined well diameter.

[0049] In this technical solution, the second mass of the cuttings and the length of the drilling section are used to accurately determine the third mass of the cuttings through a formula, so as to facilitate more accurate calculation of the well diameter using the third mass of the cuttings in the subsequent process, thereby improving the accuracy of well diameter calculation.

[0050] S140. Determine the in-situ well diameter based on the first mass, the second mass, and the third mass.

[0051] Specifically, taking the first mass, the second mass, and the third mass of the cuttings as parameters for calculating the in-situ well diameter avoids errors in the mass of the cuttings returned caused by the cuttings retained in the well during the drilling process. Furthermore, the corresponding in-situ well diameter can be accurately obtained through the analysis and calculation of the first mass, the second mass, and the third mass.

[0052] Optionally, add the first mass, the second mass, and the third mass to determine the target mass of the cuttings, which can be expressed by the formula: m = m z + m1 + m2; then determine the in-situ well diameter based on the target mass and the cuttings density.

[0053] Wherein, the cuttings density can be determined according to the lithology of the corresponding well diameter of the adjacent well, or the obtained cuttings can be analyzed and determined through the existing technology. The determination process of the cuttings density is not specifically limited in this application.

[0054] Specifically, dividing the target mass by the cuttings density ρ can determine the volume V of the cuttings, and the formula is expressed as: V = m / ρ; the in-situ well diameter can be calculated using the volume of the cuttings Substitute the volume of cuttings V = m / ρ into to obtain the calculation formula for the borehole diameter while drilling, and the formula is: Accurate measurement of the borehole diameter while drilling is achieved.

[0055] In a feasible embodiment, after determining the borehole diameter while drilling based on the first mass, the second mass, and the third mass, the method further includes:

[0056] Determine the theoretical borehole diameter of the target well; the theoretical borehole diameter includes the maximum theoretical borehole diameter and the minimum theoretical borehole diameter;

[0057] Compare the borehole diameter while drilling with the theoretical borehole diameter, and determine whether the borehole diameter while drilling is abnormal based on the comparison result.

[0058] Specifically, the theoretical borehole diameter of the target well can be determined according to the actual working conditions, such as by using the size of the drill bit used for drilling the target well. Taking the current drill bit size of the target well as 8.5 inches as an example, the minimum theoretical borehole diameter is 8.5 inches, and the maximum theoretical borehole diameter is generally expanded by a preset multiple based on the minimum theoretical borehole diameter. If the preset multiple is 5%, then the maximum theoretical borehole diameter is 8.5*(1 + 5%) = 8.925 inches. If the calculated borehole diameter while drilling data of the target well is as shown in Table 1 at this time, and then the borehole diameter while drilling data, the maximum theoretical borehole diameter, and the minimum theoretical borehole diameter are plotted, the Figure 3 as shown Figure 3 is the comparison chart of the borehole diameter while drilling applicable to the embodiments of the present invention.

[0059] Table 1

[0060] Well depth Hole diameter while drilling 2400 8.44 2415 8.43 2430 8.31 2445 8.55 2460 8.67 2475 8.65 2490 8.81 2505 8.66 2520 9.05 2535 9.37 2550 8.66 2565 8.88 2580 8.62

[0061] Optionally, when comparing the borehole diameter while drilling with the theoretical borehole diameter, if the borehole diameter while drilling is smaller than the minimum theoretical borehole diameter, the borehole diameter while drilling is an abnormal reduced borehole diameter; if the borehole diameter while drilling is larger than the maximum theoretical borehole diameter, the borehole diameter while drilling is an abnormal enlarged borehole diameter; if the borehole diameter while drilling is larger than the minimum theoretical borehole diameter and smaller than the maximum theoretical borehole diameter, the borehole diameter while drilling is a normal borehole diameter. If the borehole diameter while drilling is an abnormal reduced borehole diameter or an abnormal enlarged borehole diameter, it indicates that the borehole diameter while drilling is abnormal, and a warning message needs to be issued to remind the staff to perform corresponding operations, such as by adjusting the drilling parameters or adjusting the performance of the drilling fluid, etc., to minimize the harm caused by the abnormal borehole diameter and prevent the accident from escalating and deteriorating, resulting in a major accident. In addition, if there are Figure 2 as shown

[0062] Example, for Figure 3By analyzing in it, it can be determined that 2400 - 2430 is the abnormal hole shrinkage section, 2430 - 2505 and 2550 - 2580m are the normal hole diameter sections, and 2505 - 2550m is the abnormal hole enlargement section. Then, it can timely remind the staff to perform corresponding operations, avoid affecting normal work due to abnormal hole sections, and also avoid the occurrence of accidents through adjustment.

[0063] In this embodiment, by comparing the measured hole diameter while drilling of the target well with the determined theoretical hole diameter, it can accurately predict whether the measured hole diameter while drilling is abnormal according to the comparison result. And after the abnormality occurs, it can timely send out a warning message so that the staff can make adjustments in time to avoid the occurrence of accidents.

[0064] Optionally, Figure 4 is a comparison chart of the measured hole diameter while drilling and the electric logging hole diameter applicable to the embodiment of the present invention. Figure 4 Taking the section of well SB1 drilled to 2000 - 2120m as an example, the measured hole diameter while drilling of this section is calculated through the quality of cuttings returned, and the calculated hole diameter (measured hole diameter while drilling) data, the maximum theoretical hole diameter, and the minimum theoretical hole diameter are plotted. From Figure 4 it can be obtained that the calculated hole diameter has a decreasing trend and is smaller than the minimum theoretical hole diameter, indicating the situation of abnormal hole shrinkage. According to the friction resistance tracking, there is overpull during the hoisting process of this section, which proves that there is hole diameter abnormality in this section. After the well is completed, through the electric logging hole diameter of this section, it is found that the hole diameter of this section is smaller, which is consistent with the trend of the calculated hole diameter, realizing the indication function while drilling.

[0065] Figure 5 is a comparison chart of the measured hole diameter while drilling and the electric logging hole diameter applicable to the embodiment of the present invention. Figure 5 Taking the section of 3560 - 3740m of well SB1 as an example, the comparison chart of the measured hole diameter while drilling is drawn. The working condition of this section is to drill a thick plug and circulate the drilling fluid. From Figure 5 it can be seen that during the circulation process, the amount of cuttings returned in the section of 3590 - 3635m increases, and the calculated hole diameter is greater than the maximum theoretical hole diameter, that is, there is an abnormal hole enlargement phenomenon. Through the electric logging hole diameter verification, it is confirmed that there is an abnormal hole enlargement phenomenon in this section, that is, the "big belly" phenomenon.

[0066] The technical solution of the embodiment of the present invention determines the first quality of the cuttings produced by the target well under the first working condition; the first working condition is the process of drilling a single joint or a stand in the target well; then determines the second quality of the cuttings produced by the target well under the second working condition; the second working condition is the process of single joint or stand pulling and scratching in the target well after the end of the first working condition; further determines the third quality of the cuttings produced by the target well under the third working condition; the third working condition is the tripping process after the end of the second working condition; finally, determines the target hole diameter based on the first quality, the second quality, and the third quality, solves the limitations of the measured hole diameter while drilling in application scenarios and maturity, and realizes the prediction of the hole diameter change of the target well.

[0067] Embodiment 2

[0068] Figure 6 The following is a schematic structural diagram of a borehole diameter prediction device provided in Embodiment 2 of the present invention. As Figure 6 shown, the device includes:

[0069] A first mass determination module 210, configured to determine a first mass of cuttings produced by a target well under a first working condition; the first working condition is the process of drilling a single joint or a stand into the target well in the target well;

[0070] A second mass determination module 220, configured to determine a second mass of cuttings produced by the target well under a second working condition; the second working condition is the process of pulling and scratching a single joint or a stand in the target well after the first working condition ends;

[0071] A third mass determination module 230, configured to determine a third mass of cuttings produced by the target well under a third working condition; the third working condition is the process of circulating drilling fluid after the second working condition ends;

[0072] A borehole diameter determination module 240, configured to determine the borehole diameter based on the first mass, the second mass, and the third mass.

[0073] Optionally, the second mass determination module is specifically configured to:

[0074] After each single joint or stand is drilled in the target well, by pulling and scratching the single joint or stand in the target well, determine a first cuttings mass of the cuttings returning from the target well with the drilling fluid;

[0075] Based on the first cuttings mass and a parameter value, determine a second mass of the cuttings; the parameter value is the length of the single joint or stand.

[0076] Optionally, the third mass determination module is specifically configured to:

[0077] After the second working condition ends, obtain a second cuttings mass of the cuttings returning from the target well with the drilling fluid during the process of circulating the drilling fluid;

[0078] Based on the second cuttings mass and the length of the drilling section, determine a third mass of the cuttings.

[0079] Optionally, the borehole diameter determination module is specifically configured to:

[0080] Add the first mass, the second mass, and the third mass to determine a target mass of the cuttings;

[0081] Based on the target mass and the cuttings density, determine the borehole diameter.

[0082] Optionally, the in - wellbore diameter determination module further includes a judgment unit, specifically for:

[0083] Determine the theoretical wellbore diameter of the target well; the theoretical wellbore diameter includes the maximum theoretical wellbore diameter and the minimum theoretical wellbore diameter;

[0084] Compare the in - wellbore diameter with the theoretical wellbore diameter, and determine whether the in - wellbore diameter is abnormal according to the comparison result.

[0085] Optionally, the judgment unit includes a comparison unit, specifically for:

[0086] If the in - wellbore diameter is less than the minimum theoretical wellbore diameter, then the in - wellbore diameter is an abnormal reduced - diameter wellbore;

[0087] If the in - wellbore diameter is greater than the maximum theoretical wellbore diameter, then the in - wellbore diameter is an abnormal enlarged - diameter wellbore;

[0088] If the in - wellbore diameter is greater than the minimum theoretical wellbore diameter and less than the maximum theoretical wellbore diameter, then the in - wellbore diameter is a normal wellbore diameter.

[0089] Optionally, the judgment unit includes a comparison result judgment unit, specifically for:

[0090] If the in - wellbore diameter is an abnormal reduced - diameter wellbore or an abnormal enlarged - diameter wellbore, then the in - wellbore diameter is abnormal, and a warning message is sent.

[0091] The in - wellbore diameter prediction device provided by the embodiments of the present invention can execute the in - wellbore diameter prediction method provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the method.

[0092] In the technical solution of this application, the acquisition, storage, use, processing, etc. of data all comply with the relevant regulations of national laws and regulations and do not violate public order and good customs.

[0093] Embodiment III

[0094] According to the embodiments of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium, and a computer program product.

[0095] Figure 7The schematic structural diagram of an electronic device that can be used to implement the method for predicting borehole diameter while drilling according to an embodiment of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described and / or claimed herein.

[0096] As Figure 7 shown, the electronic device 10 includes at least one processor 11, and a memory communicatively connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc. Among them, the memory stores a computer program executable by the at least one processor. The processor 11 can execute various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. In the RAM 13, various programs and data required for the operation of the electronic device 10 can also be stored. The processor 11, the ROM 12, and the RAM 13 are connected to each other through a bus 14. The input / output (I / O) interface 15 is also connected to the bus 14.

[0097] A plurality of components in the electronic device 10 are connected to the I / O interface 15, including: an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a disk, an optical disc, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0098] The processor 11 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 11 executes the various methods and processes described above, such as the method for predicting borehole diameter while drilling.

[0099] In some embodiments, the method for predicting the borehole diameter while drilling can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 10 via the ROM 12 and / or the communication unit 19. When the computer program is loaded into the RAM 13 and executed by the processor 11, one or more steps of the method for predicting the borehole diameter while drilling described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to perform the method for predicting the borehole diameter while drilling by any other suitable means (e.g., by means of firmware).

[0100] The various embodiments of the systems and techniques described above in this document can be implemented in digital electronic circuitry, integrated circuit systems, field-programmable gate arrays (FPGA), application-specific integrated circuits (ASIC), application-specific standard products (ASSP), systems-on-chip (SOC), complex programmable logic devices (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a dedicated or general-purpose programmable processor that receives data and instructions from a storage system, at least one input device, and at least one output device, and transmits the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0101] The computer programs for implementing the methods of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general-purpose computer, a dedicated computer, or other programmable data processing device, such that when the computer programs are executed by the processor, the functions / operations specified in the flowchart and / or block diagram are implemented. The computer programs can be executed entirely on the machine, partially on the machine, as a stand-alone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0102] In the context of the present invention, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0103] To provide for interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can also be used to provide for interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0104] The systems and techniques described herein can be implemented in a computing system that includes backend components (such as, for example, a data server), or a computing system that includes middleware components (such as, for example, an application server), or a computing system that includes frontend components (such as, for example, a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected by any form or medium of digital data communication (such as, for example, a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0105] A computing system may include a client and a server. The client and the server are generally far from each other and usually interact via a communication network. The client-server relationship is generated by computer programs running on corresponding computers and having a client-server relationship with each other. The server may be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system, and solves the defects of large management difficulty and weak business scalability existing in traditional physical hosts and VPS services.

[0106] It should be understood that various forms of processes shown above can be used, steps can be reordered, added or deleted. For example, the steps recited in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is made herein.

[0107] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A method for predicting the borehole diameter while drilling, characterized in that, Including: Determine the first mass of the cuttings produced by the target well under the first working condition; The first working condition is the process of drilling the target well with a single pipe or a stand in the target well; wherein, the first mass is the weight of the cuttings returned with the drilling fluid per meter of drilling with a single pipe or a stand under the first working condition; Determine the second mass of the cuttings produced by the target well under the second working condition; the second working condition is the process of pulling and scratching a single pipe or a stand in the target well after the end of the first working condition; Determine the third mass of the cuttings produced by the target well under the third working condition; the third working condition is the process of circulating the drilling fluid after the end of the second working condition; Determine the hole diameter while drilling based on the first mass, the second mass and the third mass; Wherein, determining the hole diameter while drilling based on the first mass, the second mass and the third mass includes: Add the first mass, the second mass and the third mass to determine the target mass of the cuttings; Determine the hole diameter while drilling based on the target mass and the cuttings density; Wherein, determining the second mass of the cuttings produced by the target well under the second working condition includes: After drilling each single pipe or stand in the target well, determine the first cuttings mass of the cuttings returned with the drilling fluid from the target well by pulling and scratching a single pipe or a stand in the target well; Take the ratio of the first cuttings mass to the parameter value as the second mass of the cuttings; the parameter value is the length of a single pipe or a stand; Wherein, determining the third mass of the cuttings produced by the target well under the third working condition includes: After the end of the second working condition, obtain the second cuttings mass of the cuttings returned with the drilling fluid from the target well during the process of circulating the drilling fluid; Take the ratio of the second cuttings mass to the length of the drilled section as the third mass of the cuttings; Wherein, the determining the hole diameter while drilling based on the target mass and the cuttings density includes: ； Wherein, D represents the hole diameter while drilling, ρ represents the cuttings density, and m represents the target mass.

2. The method according to claim 1, wherein After determining the hole diameter while drilling based on the first mass, the second mass and the third mass, the method further includes: Determine the theoretical hole diameter of the target well; the theoretical hole diameter includes the maximum theoretical hole diameter and the minimum theoretical hole diameter; Compare the hole diameter while drilling with the theoretical hole diameter, and determine whether the hole diameter while drilling is abnormal based on the comparison result.

3. The method according to claim 2, wherein Comparing the hole diameter while drilling with the theoretical hole diameter includes: If the hole diameter while drilling is less than the minimum theoretical hole diameter, then the hole diameter while drilling is an abnormal shrinkage hole diameter; If the hole diameter while drilling is greater than the maximum theoretical hole diameter, then the hole diameter while drilling is an abnormal expansion hole diameter; If the hole diameter while drilling is greater than the minimum theoretical hole diameter and less than the maximum theoretical hole diameter, then the hole diameter while drilling is a normal hole diameter.

4. The method according to claim 3, wherein Determining whether the hole diameter while drilling is abnormal based on the comparison result includes: If the hole diameter while drilling is an abnormal shrinkage hole diameter or an abnormal expansion hole diameter, then the hole diameter while drilling is abnormal, and a warning message is sent.

5. A device for predicting borehole diameter while drilling, characterized in that, Including: The first mass determination module is used to determine the first mass of the cuttings produced by the target well under the first working condition; The first working condition is the process of drilling the target well with a single pipe or a stand in the target well; wherein, the first mass is the weight of the cuttings returned with the drilling fluid per meter of drilling with a single pipe or a stand under the first working condition; A second quality determination module for determining a second quality of cuttings produced by a target well under a second working condition; the second working condition is the process of pulling and scratching a single joint or stand in the target well after the end of the first working condition; A third quality determination module for determining a third quality of cuttings produced by a target well under a third working condition; the third working condition is the process of circulating drilling fluid after the end of the second working condition; A borehole diameter determination module for determining the borehole diameter while drilling based on the first quality, the second quality, and the third quality; Wherein, the borehole diameter determination module is configured to: Add the first quality, the second quality, and the third quality to determine a target quality of the cuttings; Determine the borehole diameter while drilling based on the target quality and the density of the cuttings; Wherein, the second quality determination module is specifically configured to: After each single joint or stand is drilled in the target well, determine a first cuttings quality of the cuttings returning out of the target well with the drilling fluid by pulling and scratching the single joint or stand in the target well; Use the ratio of the first cuttings quality to the parameter value as the second quality of the cuttings; the parameter value is the length of the single joint or stand; Wherein, the third quality determination module is specifically configured to: After the end of the second working condition, obtain a second cuttings quality of the cuttings returning out of the target well with the drilling fluid during the process of circulating the drilling fluid; Use the ratio of the second cuttings quality to the length of the drilled section as the third quality of the cuttings; Wherein, the borehole diameter determination module is specifically configured to: ； Wherein, D represents the borehole diameter while drilling, ρ represents the density of the cuttings, and m represents the target quality.

6. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the borehole diameter while drilling prediction method according to any one of claims 1-4.

7. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing a processor to implement the borehole diameter while drilling prediction method according to any one of claims 1-4 when executed.

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