Well drilling simulation method and device based on digital twinning

Abstract

The invention provides a well drilling simulation method and device based on digital twinning, and relates to the technical field of well drilling technologies, and the method comprises the steps: constructing a static model of well drilling equipment in a target well drilling site for the target well drilling site, and obtaining a static model database; based on the static model database, well drilling production real-time data of a target well drilling site is accessed to build a digital twinborn main database; and according to the data category of the drilling production real-time data, performing data driving on the target equipment in the static model database to obtain a drilling site overall digital twinborn model which is in virtual-real synchronization with the real-time drilling process. The digital twinning application method and system covering the whole drilling process are formed on the basis of the digital twinning technology and in combination with the drilling process and equipment linkage. The whole drilling process can be covered; and associating real-time dynamic data to reflect each operation condition.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling technology and is applied to drilling process simulation. Specifically, it relates to a drilling simulation method and device based on digital twin. Background Art

[0002] Drilling operations are a prerequisite for the smooth development of oil and gas exploration and development. Drilling equipment is of many types and in large quantities, and is operated in the field and relocated frequently. It is of great significance to improve the safe operation reliability of equipment, ensure the long-term efficient and safe operation of key equipment, and reduce the risk of unplanned downtime.

[0003] Drilling operations involve the ground and underground, and the process is complex. The underground conditions are invisible, there are deviations between predictions and actual measurements, and the trial-and-error costs of drilling engineering plans and processes are high. The drilling digital twin can repeatedly carry out trial drilling previews of drilling plans, and analysis and prediction while drilling, providing support for reducing costs and improving efficiency of the project.

[0004] Under the urgent need for cost reduction and safety, improving insight and feedback into the construction process through drilling simulation will help optimize drilling, reduce risks, improve the reliability of equipment safe operation, and advance the implementation of automated drilling.

[0005] In response to the problems of the prior art, the present invention provides a drilling simulation method and device based on digital twin. Summary of the invention

[0006] In view of the problems of the current prior art, the present invention provides a drilling simulation method based on digital twins, the method comprising:

[0007] For a target drilling site, construct a static model of drilling equipment in the target drilling site to obtain a static model database;

[0008] Based on the static model database, access the real-time drilling production data of the target drilling site to build a digital twin main database;

[0009] According to the data category of the real-time drilling production data, the target equipment in the static model database is data-driven to obtain an overall digital twin model of the drilling site that is synchronized with the real-time drilling process.

[0010] According to one embodiment of the present invention, in the target drilling site, the drilling equipment includes but is not limited to: derrick, base, winch, overhead crane, traveling block, turntable, top drive, mud pump, diesel generator set, vibrating screen, centrifuge, desander, degasser, mud tank, reserve tank, iron roughneck, drilling platform manipulator, buffer manipulator, second-layer platform pipe arrangement, power catwalk, and high-pressure manifold.

[0011] According to one embodiment of the present invention, a static model of the drilling equipment in the target drilling site is constructed by the following steps: three-dimensional geometric modeling of the equipment is performed based on the entity of the target equipment, and the appearance, shape, proportion and structure of the target equipment are restored to obtain the static model.

[0012] According to one embodiment of the present invention, the real-time drilling production data includes but is not limited to: daily drilling report, real-time data of mud logging instrument, and intelligent monitoring data of well control.

[0013] According to an embodiment of the present invention, the data categories of the real-time drilling production data include but are not limited to: drilling conditions, circulation conditions, and tripping conditions.

[0014] According to one embodiment of the present invention, the target device in the static model database is data-driven through the following steps: comprehensively analyzing the logical association relationship of the real-time drilling production data, forming a multivariable algorithm model, decomposing the actions of each device under different working conditions, forming a correspondence, and realizing the triggering of target device actions under the condition of changes in the real-time drilling production data.

[0015] According to one embodiment of the present invention, the method further includes: performing model rendering, realizing two-dimensional charts and three-dimensional roaming effect display based on the overall digital twin model of the drilling site.

[0016] According to one embodiment of the present invention, the method further includes: for the overall digital twin model of the drilling site, by replacing the equipment model and performing different data access operations, achieving rapid replication of different drilling production site models.

[0017] According to another aspect of the present invention, there is also provided a storage medium comprising a series of instructions for executing the steps of a drilling simulation method based on digital twin as described in any one of the above items.

[0018] According to another aspect of the present invention, there is also provided a drilling simulation device based on digital twin, which executes a drilling simulation method based on digital twin as described in any one of the above items, and the device comprises:

[0019] A static model module, which is used to construct a static model of drilling equipment in a target drilling site and obtain a static model database;

[0020] A subject database module, which is used to access the real-time drilling production data of the target drilling site based on the static model database to build a digital twin subject database;

[0021] The overall twin model module is used to data-drive the target equipment in the static model database according to the data category of the real-time drilling production data, so as to obtain an overall digital twin model of the drilling site that is synchronized with the real-time drilling process.

[0022] The present invention provides a drilling simulation method and device based on digital twins, which has the following advantages over the prior art: Based on digital twin technology, the present invention combines drilling technology and equipment linkage to form a set of digital twin application methods and systems covering the entire drilling process. It can cover the entire drilling process; associate real-time dynamic data to reflect various operating conditions; establish a digital ecosystem for drilling well sites and standardize well sites; integrate automatic operation and linkage control of equipment to perform digital drilling simulation, fault prediction, and maintenance prediction.

[0023] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 A flowchart of the steps of a drilling simulation method based on digital twin according to an embodiment of the present invention is shown;

[0026] Figure 2 A model change diagram for constructing an overall digital twin model of a drilling site according to an embodiment of the present invention is shown;

[0027] Figure 3 A module composition diagram of a drilling simulation device based on digital twin according to an embodiment of the present invention is shown.

[0028] In the accompanying drawings, the same reference numerals are used for the same components. In addition, the accompanying drawings are not drawn according to the actual scale. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0030] In the prior art, drilling workers usually judge the current construction progress and status based on on-site data. However, due to the high complexity of the drilling construction site, the large number of construction equipment, and the complexity of the underground and underground environment, the data obtained at the construction site is not only large in volume but also diverse in types. It is difficult for construction workers to quickly and accurately judge the current construction progress and status based on on-site data, which reduces the efficiency of drilling construction and may even cause safety hazards in serious cases.

[0031] The prior art (CN111126735A) discloses a drilling digital twin system, which includes: a data acquisition module, which is configured to acquire real-time measurement data of ground and downhole sensors; a geological parameter interpretation module, which is configured to interpret the real-time measurement data of the downhole sensors in real time and acquire real-time geological environment interpretation; a drilling engineering real-time calculation module, which is configured to calculate and acquire real-time drilling engineering data in real time based on the real-time measurement data of the ground and downhole sensors; a wellbore simulation calculation module, which is configured to perform drilling process simulation calculation based on the real-time measurement data, the real-time geological environment interpretation and the real-time drilling engineering data, and output the real-time simulation data of the wellbore and the real-time simulation data of the well edge rock mass. Compared with the prior art, the system based on the present invention can not only greatly reduce the workload of the staff and improve the work efficiency, but also improve the safety of drilling construction operations. However, the above-mentioned prior art does not disclose a digital twin application method and system covering the entire drilling process.

[0032] The prior art (CN112392485A) discloses a transparent digital twin adaptive mining system and method for a fully mechanized coal mining face, the system comprising an equipment end, a service end, and a digital twin model database. The equipment end includes a roof support device, a coal mining device, a transfer device, a power supply device, and an auxiliary monitoring device for the coal mining face; the service end includes geodetic model correction, equipment data acquisition, equipment model iteration, equipment logic control, and geodetic coordinate positioning; the digital twin model database includes a tunnel model, a stratum model, an equipment model, and a mining environment. The invention constructs a digital twin three-dimensional virtual mining scene based on a unified geodetic coordinate system, and uses intelligent sensing technology to obtain equipment-side information in real time; by driving the twin model in the virtual scene through information, the transparent perception of the mining environment of the underground coal mining workplace, the intelligent monitoring of the equipment, the visualized adaptive mining, and the prediction of faults can be realized, the number of coal mining workers can be reduced, and the level of intelligent mining in coal mines can be improved. However, the above-mentioned prior art does not disclose a digital twin application method and system covering the entire drilling process.

[0033] The prior art (CN110866334A) relates to a method for evaluating the status of a drill tool based on digital twins, and relates to the field of oil drill tool detection technology, including: establishing a digital twin evaluation platform for drill tools, the digital twin evaluation platform for drill tools at least including a drill tool information database, a drill tool maintenance database, and a drill tool operation database; formulating a drill tool code, the drill tool code being a unique identifier used in the digital twin evaluation platform for drill tools; the digital twin evaluation platform for drill tools extracts drill tool information data, drill tool maintenance data, and drill tool operation data corresponding to the drill tool code from the drill tool information database, the drill tool maintenance database, and the drill tool operation database, and evaluates the health status of the drill tool. The embodiment of the present invention can accurately track the complete life cycle of each drill tool from warehousing, mobilization, inspection, repair, maintenance, and scrapping, and evaluate the health status of the drill tool. The embodiment of the present invention also provides a drill tool status evaluation system based on digital twins. However, the above-mentioned prior art does not disclose a digital twin application method and system covering the entire drilling process.

[0034] The prior art (CN113586028A) relates to an intelligent monitoring system for a hole-reaming cutterhead of a raise boring rig based on digital twins, comprising: a data acquisition module, a digital twin and a health detection module, wherein the data acquisition module is used to obtain the amount of cutterhead wear; the digital twin includes a visualized cutterhead twin; the health detection module is used to update the cutterhead twin in real time according to the amount of cutterhead wear, thereby monitoring the wear of the cutterhead. The intelligent monitoring system for a hole-reaming cutterhead of a raise boring rig based on digital twins provided by the present invention applies digital twin technology to adjust the cutterhead parameters in real time, thereby reducing cutterhead wear and lowering the accident rate. However, the above-mentioned prior art does not disclose a digital twin application method and system covering the entire drilling process.

[0035] In view of the above-mentioned defects of the prior art, the present invention is based on digital twin technology, combined with drilling technology and equipment linkage, to form a set of digital twin application methods and systems covering the entire drilling process. It can cover the entire drilling process; associate real-time dynamic data to reflect various operating conditions; establish a digital ecosystem for drilling well sites and standardize well sites; integrate automatic operation and linkage control of equipment to perform digital drilling simulation. The drilling equipment includes mud pumps, top drives, winches, turntables, diesel generator sets, etc., and twins are constructed. The mechanism model associated with the real-time operation data of the equipment is established to achieve twinning of the mechanism model and the real-time operation data.

[0036] Figure 1 A flowchart of the steps of a drilling simulation method based on digital twin according to an embodiment of the present invention is shown.

[0037] like Figure 1 As shown, in step S101, for a target drilling site, a static model of drilling equipment in the target drilling site is constructed to obtain a static model database.

[0038] Specifically, if Figure 2 As shown, a rapid static model of the drilling site and related equipment is constructed, and a static model library 201 is established.

[0039] In one embodiment, at the target drilling site, the drilling equipment includes but is not limited to: derrick, base, winch, overhead crane, traveling block, turntable, top drive, mud pump, diesel generator set, vibrating screen, centrifuge, desander, degasser, mud tank, reserve tank, iron roughneck, drilling floor manipulator, buffer manipulator, second-layer platform pipe arrangement, power catwalk, and high-pressure manifold.

[0040] In one embodiment, in step S101, a static model of drilling equipment in a target drilling site is constructed by performing three-dimensional geometric modeling of the equipment based on the entity of the target equipment, restoring the appearance, shape, proportion and structure of the target equipment, and obtaining a static model.

[0041] Furthermore, the static model is consistent with the basic device identity information of the target device, wherein the basic device identity information includes but is not limited to: model, name, models of each core component and specifications of the core components.

[0042] like Figure 1 As shown, in step S102, based on the static model database, the real-time drilling production data of the target drilling site is accessed to build a digital twin main body database.

[0043] Specifically, if Figure 2 As shown, real-time production data and equipment operation data are quickly accessed to build a digital twin subject database 202.

[0044] In one embodiment, the real-time drilling production data includes but is not limited to: daily drilling report, real-time data of mud logger, and intelligent monitoring data of well control.

[0045] like Figure 1 As shown, in step S103, according to the data category of the real-time drilling production data, the target equipment in the static model database is data-driven to obtain an overall digital twin model of the drilling site that is synchronized with the real-time drilling process.

[0046] Specifically, if Figure 2 As shown, according to the data category actually accessed, the data-driven effect of the data-related equipment is realized, the linkage between data and the model is realized, and the overall digital twin model 203 of the drilling site that is synchronized with the real-time drilling process is obtained.

[0047] In one embodiment, the data categories of the real-time drilling production data include but are not limited to: drilling conditions, circulation conditions, and tripping conditions.

[0048] In one embodiment, in step S103, the target device in the static model database is data-driven through the following steps: comprehensively analyze the logical association relationship of the real-time drilling production data, form a multivariable algorithm model, decompose the actions of each device under different working conditions, form a correspondence, and realize the triggering of the target device action under the condition of changes in the real-time drilling production data.

[0049] Specifically, the logical relationship between real-time data groups is comprehensively analyzed to form a multivariate algorithm model, decompose the actions of each device under working conditions, form a correspondence, and realize the action triggering under the condition of real-time data changes. Under working conditions such as drilling, circulation, and tripping, the top drive position, drill string rotation status, mud pump working status, winch operation status, etc. are synchronized with the site in virtual and real terms.

[0050] In one embodiment, a drilling simulation method based on digital twins further includes: based on the overall digital twin model of the drilling site, performing model rendering, realizing two-dimensional charts and three-dimensional roaming effect display.

[0051] Specifically, the synthesis of the overall twin well site of the entire drilling site is formed based on modeling and data-driven, and the development of effects such as model rendering, two-dimensional charts and roaming is realized.

[0052] In one embodiment, a drilling simulation method based on digital twins further includes: for the overall digital twin model of the drilling site, rapid replication of different drilling production site models is achieved through equipment model replacement and different data access operations.

[0053] Specifically, based on the digital twin model that has been built, rapid replication of different production site models can be achieved through operations such as equipment model replacement and data access.

[0054] The present invention is based on digital twin technology, combined with drilling technology and equipment linkage, to form a set of digital twin application methods and systems covering the entire drilling process. It can cover the entire drilling process; associate real-time dynamic data to reflect various operating conditions; establish a digital ecosystem for drilling well sites and standardize well sites; integrate automatic operation and linkage control of equipment to perform digital drilling simulation.

[0055] The drilling simulation method and device based on digital twin provided by the present invention can also be used in conjunction with a computer-readable storage medium, on which a computer program is stored, and the computer program is executed to run a drilling simulation method based on digital twin. The computer program can run computer instructions, which include computer program code, which can be in source code form, object code form, executable file, or some intermediate form.

[0056] Computer-readable storage media may include: any entity or device that can carry computer program code, recording media, USB flash drives, mobile hard disks, magnetic disks, optical disks, computer memory, read-only memory (ROM), random access memory (RAM), electrical carrier signals, telecommunication signals, and software distribution media, etc.

[0057] It should be noted that the content contained in computer-readable storage media can be appropriately increased or decreased based on the requirements of legislation and patent practices in the jurisdiction. For example, in some jurisdictions, based on legislation and patent practices, computer-readable storage media do not include electrical carrier signals and telecommunications signals.

[0058] Figure 3 A module composition diagram of a drilling simulation device based on digital twin according to an embodiment of the present invention is shown.

[0059] According to another aspect of the present invention, a drilling simulation device 300 based on digital twin is provided, which executes a drilling simulation method based on digital twin. The device includes: a static model module 301, a main database module 302, and an overall twin model module 303.

[0060] The static model module 301 is used to construct a static model of drilling equipment in the target drilling site and obtain a static model database.

[0061] The subject database module 302 is used to access the real-time drilling production data of the target drilling site based on the static model database to build a digital twin subject database.

[0062] The overall twin model module 303 is used to data-drive the target equipment in the static model database according to the data category of the real-time drilling production data, and obtain an overall digital twin model of the drilling site that is synchronized with the real-time drilling process.

[0063] The present invention is based on digital twin technology, combined with drilling technology and equipment linkage, to form a set of digital twin application methods and systems covering the entire drilling process. It can cover the entire drilling process; associate real-time dynamic data to reflect various operating conditions; establish a digital ecosystem for drilling well sites and standardize well sites; integrate automatic operation and linkage control of equipment to perform digital drilling simulation.

[0064] In one embodiment, in the static model module 301, in the target drilling site, the drilling equipment includes but is not limited to: top drive, mud pump, drawworks, drill floor manipulator, buffer manipulator, second-layer platform pipe, drilling automation equipment, and hydraulic power source.

[0065] In one embodiment, the static model module 301 performs the following steps to construct a static model of the drilling equipment in the target drilling site: perform three-dimensional geometric modeling of the equipment based on the entity of the target equipment, restore the appearance, shape, proportion and structure of the target equipment, and obtain a static model.

[0066] In one embodiment, in the main database module 302, the real-time data of drilling production includes but is not limited to: daily drilling report, real-time data of mud logger, and intelligent monitoring data of well control.

[0067] In one embodiment, in the overall twin model module 303, the data categories of the real-time drilling production data include but are not limited to: drilling conditions, circulation conditions, and tripping conditions.

[0068] In one embodiment, the overall twin model module 303 performs the following steps to data-drive the target equipment in the static model database: comprehensively analyze the logical association relationship of the real-time drilling production data, form a multivariable algorithm model, decompose the actions of each device under different working conditions, form a correspondence, and realize the triggering of target equipment actions under the conditions of changes in the real-time drilling production data.

[0069] In one embodiment, a drilling simulation device 300 based on digital twins further includes: a model rendering module, which performs model rendering based on the overall digital twin model of the drilling site and realizes two-dimensional charts and three-dimensional roaming effect display.

[0070] In one embodiment, a drilling simulation device 300 based on digital twins further includes: a drilling site switching module, which targets the overall digital twin model of the drilling site, and realizes rapid replication of different drilling production site models through equipment model replacement and different data access operations.

[0071] In summary, the present invention provides a drilling simulation method and device based on digital twins, which has the following advantages over the prior art: Based on digital twin technology, the present invention combines drilling technology and equipment linkage to form a set of digital twin application methods and systems covering the entire drilling process. It can cover the entire drilling process; associate real-time dynamic data to reflect various operating conditions; establish a digital ecosystem for drilling well sites and standardize well sites; integrate automatic operation and linkage control of equipment to perform digital drilling simulation, fault prediction, and maintenance prediction.

[0072] It should be understood that the embodiments disclosed in the present invention are not limited to the specific structures, processing steps or materials disclosed herein, but should be extended to equivalent substitutions of these features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0073] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two; the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0074] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] Certain terms are used throughout this application document to indicate specific system components. As those skilled in the art will recognize, different names can usually be used to indicate the same components, so this application document is not intended to distinguish those components that are only different in name but not in function. In this application document, the terms "comprise", "include" and "have" are used in an open form, and therefore should be interpreted as meaning "including but not limited to...". In addition, the terms "substantially", "substantially" or "approximately" that may be used in this article relate to the tolerances of the corresponding terms accepted by the industry. The term "coupling" as may be used in this article includes direct coupling and indirect coupling via other components, elements, circuits, or modules, wherein for indirect coupling, the components, elements, circuits, or modules between them do not change the information of the signal but can adjust its current level, voltage level, and / or power level. Inferred coupling (for example, one of the elements is coupled to another element by inference) includes direct and indirect coupling between two elements in the same way as "coupling".

[0076] The "one embodiment" or "embodiment" mentioned in the specification means that the specific features, structures or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases "one embodiment" or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0077] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

[0078] Although the embodiments disclosed in the present invention are as above, the contents described are only embodiments adopted for facilitating the understanding of the present invention and are not intended to limit the present invention. Any technician in the technical field to which the present invention belongs can make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in the present invention, but the patent protection scope of the present invention shall still be subject to the scope defined in the attached claims.

Claims

1. A drilling simulation method based on digital twin, characterized in that: The method comprises: For a target drilling site, construct a static model of drilling equipment in the target drilling site to obtain a static model database; Based on the static model database, access the real-time drilling production data of the target drilling site to build a digital twin main database; According to the data category of the real-time drilling production data, the target equipment in the static model database is data-driven to obtain an overall digital twin model of the drilling site that is synchronized with the real-time drilling process.

2. A drilling simulation method based on digital twinning according to claim 1, characterized in that: In the target drilling site, the drilling equipment includes but is not limited to: derrick, base, winch, overhead crane, traveling block, turntable, top drive, mud pump, diesel generator set, vibrating screen, centrifuge, desander, degasser, mud tank, reserve tank, iron roughneck, drilling platform manipulator, buffer manipulator, second-layer platform pipe arrangement, power catwalk, and high-pressure manifold.

3. A drilling simulation method based on digital twinning according to claim 1 or 2, characterized in that: The static model of the drilling equipment in the target drilling site is constructed by the following steps: three-dimensional geometric modeling of the equipment is performed based on the entity of the target equipment, and the appearance, shape, proportion and structure of the target equipment are restored to obtain the static model.

4. A drilling simulation method based on digital twin according to any one of claims 1 to 3, characterized in that: The real-time drilling production data includes but is not limited to: daily drilling reports, real-time logging data, and well control intelligent monitoring data.

5. A drilling simulation method based on digital twin according to any one of claims 1 to 4, characterized in that: The data categories of the real-time drilling production data include but are not limited to: drilling conditions, circulation conditions, and tripping conditions.

6. A drilling simulation method based on digital twinning as claimed in claim 5, characterized in that: The target device in the static model database is data-driven through the following steps: comprehensively analyze the logical association relationship of the real-time drilling production data, form a multivariable algorithm model, decompose the actions of each device under different working conditions, form a correspondence, and realize the triggering of target device actions under the conditions of changes in the real-time drilling production data.

7. A drilling simulation method based on digital twinning according to any one of claims 1 to 6, characterized in that: The method further includes: performing model rendering based on the overall digital twin model of the drilling site, and realizing two-dimensional chart and three-dimensional roaming effect display.

8. A drilling simulation method based on digital twinning according to any one of claims 1 to 7, characterized in that: The method further includes: for the overall digital twin model of the drilling site, by replacing the equipment model and performing different data access operations, realizing rapid replication of different drilling production site models.

9. A storage medium, characterized in that: It contains a series of instructions for executing the steps of a drilling simulation method based on digital twin as described in any one of claims 1-8.

10. A drilling simulation device based on digital twin, characterized in that: Executing a drilling simulation method based on digital twin according to any one of claims 1 to 8, the device comprising: A static model module, which is used to construct a static model of drilling equipment in a target drilling site and obtain a static model database; A subject database module, which is used to access the real-time drilling production data of the target drilling site based on the static model database to build a digital twin subject database; The overall twin model module is used to data-drive the target equipment in the static model database according to the data category of the real-time drilling production data, so as to obtain an overall digital twin model of the drilling site that is synchronized with the real-time drilling process.

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