Method, device, equipment and storage medium for adjusting microstructure of drilling-guided area

Abstract

The present invention provides a method and device, equipment and storage medium for adjusting microstructure of a drilling-guided area, which belongs to the technical field of oil and gas exploration and development. The adjustment method includes: obtaining structural area data, adjacent well data and drilling data, and storing them in a basic database; generating a three-dimensional geological structure model based on adjacent well data and / or structural area data, and storing the three-dimensional geological structure model in a structured manner in a spatial database; cutting the three-dimensional geological structure model according to the azimuth of the designed trajectory to obtain a two-dimensional guide profile model; generating a guide tracking map in combination with the drilling data to fine-tune the two-dimensional guide profile model; and storing the fine-tuned two-dimensional guide profile model data back to the spatial database to update the three-dimensional geological structure model. The present invention breaks through the barriers between three-dimensional structure and two-dimensional structure, supports mapping from real three-dimensional space to two-dimensional space for guide analysis, and the adjustment made in two-dimensional space can also correct three-dimensional space information.

Description

Technical Field

[0001] The present invention belongs to the technical field of geo-steering drilling while drilling, and specifically, relates to a method for adjusting microstructure of a geo-steering area while drilling, a device for adjusting microstructure of a geo-steering area while drilling, a computer-readable storage medium storing a computer program, and a computer device. Background Art

[0002] During the horizontal well drilling process, due to objective factors such as thin reservoirs and complex and changeable underground structures, geological steering technology is needed to convert the bottom hole measurement data into geological knowledge in real time, and then accurately adjust the drilling engineering trajectory to improve the reservoir drilling rate. At present, the conventional geological steering analysis work is still for the steering engineer to collect regional data, use professional software (C / S) to establish a regional geological model, create a two-dimensional steering model based on regional knowledge, and then update the geological knowledge according to real-time data, adjust the steering model, and issue steering instructions on site.

[0003] The current working mode has problems such as inconsistent understanding of the model, different guides have different understandings of the structure of the same area, cumbersome regional modeling workload, unsaved regional guidance models, and each guide needs to create a structural model for the region. The regional structural model constructed by each guide is a stand-alone version, so the model updated by the guide cannot be pushed to other guides in the region in a timely manner, and other guides cannot correct the updated regional model.

[0004] For example, a patent document entitled "A method for correcting a geological steering model" and published on March 1, 2019 with publication number CN109408837A records a method for correcting a geological steering model, which includes: step one, generating an initial steering model of a target well based on a two-dimensional seismic profile of the target well; step two, obtaining the measured vertical depth data of a marker layer of the target well and the predicted vertical depth data of the marker layer in the initial steering model, and determining a real-time correction coefficient based on the measured vertical depth data and the predicted vertical depth data of the marker layer; step three, correcting the initial steering model based on the real-time correction coefficient to generate a revised steering model of the target well.

[0005] A patent document entitled "A method for updating a geological steering model" and published on June 9, 2020 with publication number CN111260791A records a method for updating a geological steering model, including: establishing a three-dimensional steering model; updating the three-dimensional steering model, including: after the three-dimensional steering model is established or updated, if new formation information is further acquired, taking the orientation corresponding to the new formation information as a new constraint point, establishing a virtual well at the new constraint point, and matching the virtual well information of the virtual well with the new formation information; using the virtual well information to add structural and rock property information of the new constraint point; and updating the three-dimensional steering model according to the structural and rock property information of the new constraint point.

[0006] Although these methods can correct and update the geosteering model, they are all adjustment measures directly for the two-dimensional structural model, and do not achieve rapid adjustment of the three-dimensional structural model. Moreover, they all have the problem of cumbersome correction process and the inability to share correction information.

[0007] To solve the above problems, a technology is needed to remotely store the regional structural model so that each guidance engineer can quickly pull the regional structural model. In addition, each guidance engineer can adjust the structural model at the same time and then feed it back to the storage end for update, thereby completing the online and shared adjustment of the regional micro-structure of the drilling guidance. Summary of the invention

[0008] The purpose of the present invention is to solve at least one of the above-mentioned deficiencies in the prior art. For example, one of the purposes of the present invention is to provide a method for adjusting the microstructure of the drilling guidance area to achieve model information sharing and solve the problem of untimely model update caused by inconsistent model recognition and inconsistent structural recognition of the same area by different guidance technicians.

[0009] In order to achieve the above-mentioned purpose, the present invention provides a method for adjusting micro-structure of a steering area while drilling, and the adjustment method may include the following steps: S1, obtaining structural area data, adjacent well data and drilling data, and storing them in a basic database; S2, generating a three-dimensional geological structure model based on adjacent well data and / or structural area data, and storing the three-dimensional geological structure model in a structured manner in a spatial database; S3, cutting the three-dimensional geological structure model according to the azimuth of the designed trajectory to obtain a two-dimensional steering profile model; S4, generating a steering tracking map in combination with the drilling data to fine-tune the two-dimensional steering profile model; S5, storing the fine-tuned two-dimensional steering profile model data back to the spatial database to update the three-dimensional geological structure model.

[0010] In an exemplary embodiment of the method for adjusting microstructures in the steering area while drilling of the present invention, the drilling data may include real-time logging data, real-time comprehensive logging instrument data of the well, real-time MWD and LWD directional data of the well, and professional drilling data of the well.

[0011] In an exemplary embodiment of the method for adjusting the microstructure of the drilling steering area of ​​the present invention, step S3 may include the following sub-steps: calling the three-dimensional geological structure model data body in the spatial database, and constructing a three-dimensional body model based on the spatial structure points (X, Y, Z, W); determining the cutting azimuth, and cutting the three-dimensional geological structure model longitudinally along the azimuth; performing interpolation calculation after cutting, and converting the three-dimensional structure body structure (X, Y, Z, W) into a two-dimensional structure line structure (X, Y, W).

[0012] In an exemplary embodiment of the method for adjusting the microstructure of the steering area while drilling of the present invention, step S4 may include the following sub-steps: drawing the actual drilling trajectory data of the well in an inclined well style on the background of the two-dimensional steering profile model; filling the attributes of the two-dimensional steering profile model according to the curves of adjacent wells, and inverting and predicting the curve of the same name of the well; fitting and comparing the actual drilling curve of the well with the predicted curve of the well, and fine-tuning the two-dimensional steering profile model according to the comparison results.

[0013] In an exemplary embodiment of the method for adjusting the microstructure of the drilling guidance area of ​​the present invention, the fine-tuning method of the two-dimensional guidance profile model can be: by inserting or deleting control points on the two-dimensional guidance profile model, the stratigraphic dip of a single layer is adjusted horizontally, and the stratigraphic dip of all layers at the same horizontal position is adjusted in batches vertically.

[0014] In an exemplary embodiment of the method for adjusting microstructure of a steering area while drilling of the present invention, the finely adjusted two-dimensional steering profile model data may include spatial point data, line data and attribute data of each point.

[0015] In an exemplary embodiment of the method for adjusting the microstructure of the while-drilling steering area of ​​the present invention, step S5 may include the following sub-steps: storing the fine-tuned spatial point data, line data and attribute data of each point back to the spatial database to confirm the cutting orientation and range of action of the adjusted two-dimensional steering profile model; through a reverse updating algorithm, the adjustment of the stratigraphic plane and inclination in the two-dimensional structure is reversely deduced from the two-dimensional point coordinates (X, Y, W) to the three-dimensional point coordinates (X, Y, Z, W); and updating the three-dimensional geological structure model according to the three-dimensional point coordinates (X, Y, Z, W).

[0016] On the other hand, the present invention provides a device for adjusting micro-structures of a steering area while drilling, and the adjustment device may include a basic database, a spatial database, a cutting unit, a first adjustment unit and a second adjustment unit, wherein the basic database is used to store structural area data, adjacent well data and drilling data; the spatial database is used to store three-dimensional geological structure models and fine-tuned two-dimensional steering profile model data; the cutting unit is connected to the basic database, and is used to cut the three-dimensional geological structure model along the azimuth of the designed trajectory to obtain a two-dimensional steering profile model; the first adjustment unit is connected to the cutting unit and the spatial database respectively, and is used to generate a steering tracking map in combination with the drilling data, and adjust the two-dimensional steering profile model according to the steering tracking map; the second adjustment unit is connected to the spatial database, and is used to adjust the three-dimensional geological structure model according to the adjusted two-dimensional steering profile model data.

[0017] In an exemplary embodiment of the micro-structure adjustment device of the drilling guide area of ​​the present invention, the first adjustment unit may include a first drawing module, a second drawing module, a sharing module and an editing module, wherein the first drawing module is used to draw the actual drilling curve of the well; the second drawing module is used to draw the prediction curve of the well; the sharing module is used to visualize the guide tracking map and the two-dimensional guide profile model to multiple users; the editing module is used to allow multiple users to adjust the two-dimensional guide profile model at the same time.

[0018] In an exemplary embodiment of the while-drilling guide area micro-structure adjustment device of the present invention, the editing module may include an insertion submodule, a deletion submodule, a lateral adjustment submodule and a longitudinal adjustment submodule, wherein the insertion submodule is used to insert control points on the construction line of the two-dimensional guide profile model; the deletion submodule is used to delete control points on the construction line of the two-dimensional guide profile model; the lateral adjustment submodule is used to adjust the formation dip of a single layer in the transverse direction; and the longitudinal adjustment submodule is used to batch adjust the formation dip of all layers at the same horizontal position in the longitudinal direction.

[0019] In an exemplary embodiment of the micro-structure adjustment device of the drilling guide area of ​​the present invention, the second adjustment unit may include a first determination module, a second determination module and an update module, wherein the first determination module is connected to the spatial database, and is used to confirm the cutting orientation and range of action of the adjusted two-dimensional guide profile model; the second determination module is connected to the first determination module, and is used to reversely deduce the adjustment of the layer plane and inclination in the two-dimensional structure from the two-dimensional point coordinates (X, Y, W) to the three-dimensional point coordinates (X, Y, Z, W) according to the reverse update algorithm; the update module is connected to the second determination module, and is used to update the three-dimensional geological structure model according to the three-dimensional point coordinates (X, Y, Z, W).

[0020] In yet another aspect, the present invention provides a computer device, comprising: a processor; a memory storing a computer program, wherein when the computer program is executed by the processor, the method for adjusting microstructure of a drilling guide area as described above is implemented.

[0021] In another aspect, the present invention provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the method for adjusting microstructure of a steering area while drilling as described above.

[0022] Compared with the prior art, the beneficial effects of the present invention include at least one of the following:

[0023] (1) The present invention uses spatial database technology to achieve real-time sharing of structural models, supports multiple people to make real-time microstructural adjustments to the same structural area at the same time, unifies the understanding of regional structures by relevant parties, and ensures the timeliness of the structural regional model;

[0024] (2) The present invention breaks down the barriers between three-dimensional and two-dimensional structures, supports mapping from real three-dimensional space to two-dimensional space for guidance analysis, and at the same time, adjustments made in two-dimensional space can also correct three-dimensional space information;

[0025] (3) The present invention improves the timeliness of geosteering modeling by establishing online guidance analysis and making full use of real-time data to quickly establish and adjust the model;

[0026] (4) The present invention innovates the technical system for guiding model establishment and adjustment, upgrades independent model analysis to shared model analysis, and increases the participation of relevant parties. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or other objects and features of the present invention will become more apparent through the following description in conjunction with the accompanying drawings, in which:

[0028] Figure 1 A schematic flow chart of a microstructure adjustment method of an exemplary embodiment of a microstructure adjustment method of a steering area while drilling according to the present invention is shown;

[0029] Figure 2 A schematic diagram showing the structure of a spatial database of an exemplary embodiment of the device for adjusting micro-structures of a steering area while drilling according to the present invention;

[0030] Figure 3 A diagram showing a micro-structure adjustment interface of a while-drilling steering area of ​​an exemplary embodiment of the present invention;

[0031] Figure 4A schematic diagram showing the working mode of an online guide map of an exemplary embodiment of the micro-structure adjustment device for the guide area while drilling of the present invention. DETAILED DESCRIPTION

[0032] Hereinafter, the method, device, equipment and storage medium for adjusting microstructure of the steering area while drilling of the present invention will be described in detail in conjunction with exemplary embodiments.

[0033] It should be noted that “first” and “second” are only for the convenience of description and to constitute a relative orientation or position relationship, and do not indicate or imply that the referred components must have this specific orientation or position.

[0034] The purpose of the present invention is to upgrade the previous three-dimensional structural model from unstructured storage to structured storage through spatial database technology, realize the standardization of three-dimensional structural models, and adjust the three-dimensional structural models in the spatial database through multi-person collaboration to realize the sharing and updating of structural models. At the same time, combined with front-end web technology, it can realize online extraction of structural models, adjust structural models, and improve the timeliness of structural recognition and updating.

[0035] In order to achieve the above objectives, the present invention provides a method for adjusting microstructure of a steering area while drilling.

[0036] In an exemplary embodiment of the present invention, Figure 1 As shown, the method for adjusting the microstructure of the steering area while drilling may include the following steps:

[0037] S1. Acquire structural area data, adjacent well data and drilling data, and store them in the basic database.

[0038] S2. Generate a three-dimensional geological structure model based on adjacent well data and / or structural area data, and store the three-dimensional geological structure model in a structured manner in a spatial database.

[0039] It should be noted that the traditional spatial database was originally designed to support the geometric structure on the GIS map. It is mostly designed with points, lines, and regions. When representing complex three-dimensional spatial geological structures such as three-dimensional models, it will take up a lot of storage space, affecting data access performance. The present invention is aimed at the library table structure involved in the geological model structure. By introducing a regional spatial database system, the traditional wellbore database system stores the data of a single well and there is no gap in regional knowledge data storage. Based on the data types supported by the existing spatial database, a library table that can support the concepts of three-dimensional surfaces and three-dimensional models is encapsulated. By storing the spatial model in the region, a way to precipitate regional knowledge is provided, reducing the storage space occupied by three-dimensional spatial geological structure data and improving data access performance.

[0040] For example, Figure 2The schematic diagram of the structure of the spatial database is shown. The database table is designed according to the geological model structure, and the spatial database established can directly support the complex three-dimensional grid data structure in the geological model.

[0041] like Figure 2 As shown in the figure, the specific steps of library table design include: first, establishing the well surface coordinate data information, and calculating the three-dimensional coordinates of the entire well trajectory according to the single well inclination data; second, establishing the boundary information of the spatial data body, and reading its boundary information while storing the spatial data body (the x, y, and z values ​​of the eight vertices are stored in sequence), and establishing the spatial data body file and database record association information; finally, when modeling a single well, the spatial data body is cut by reading the coordinates of the well, and only the required part is read for modeling.

[0042] S3. Cut the three-dimensional geological structure model according to the designed trajectory azimuth to obtain a two-dimensional guided section model.

[0043] Specifically, by calling the three-dimensional structural model data body in the spatial database, a three-dimensional body model is constructed based on the spatial structural points (X, Y, Z, W), the model is constructed by non-uniform gridding, and after confirming the cutting azimuth, the three-dimensional structural model is longitudinally cut along the azimuth. After cutting, interpolation calculation is performed, and the three-dimensional structural body (X, Y, Z, W) structure (that is, the three-dimensional geological structural model data body) is converted into a two-dimensional structural line (X, Y, W) structure. The horizontal distance of the center wellhead is used as the X of the reference coordinate system, and the vertical depth of the center well is used as the Y of the reference coordinate system. The two-dimensional structural line model is a scattered point set (X, Y), and finally a real-time two-dimensional structural model is formed based on a group of two-dimensional structural lines for guidance analysis.

[0044] Here, a spatial structural point refers to a point on the three-dimensional structural surface data, where X represents the geodetic coordinate x of the point, Y represents the geodetic coordinate y, Z represents the altitude value, and W represents the attribute value of the point. A three-dimensional volume model refers to seismic segy data, which is a volume data that describes the current geological conditions; while a three-dimensional geological structural model data volume is a surface data that represents the information of a certain layer. Both the three-dimensional volume model and the three-dimensional geological structural model data volume are used to establish a two-dimensional guidance model. The three-dimensional volume model is represented as a surface in the guidance model, and the structural model is represented as a line.

[0045] The specific implementation method of converting a three-dimensional structure (X, Y, Z, W) structure into a two-dimensional structure line (X, Y, W) structure is as follows: first confirm the projection direction of the three-dimensional data on the two-dimensional model according to the azimuth, then calculate the projection point of the three-dimensional point according to the azimuth and the trajectory, then connect the projected points into a line, and finally smooth the curve through the interpolation algorithm. Commonly used interpolation algorithms include nearest neighbor interpolation, bilinear interpolation, and bicubic interpolation. The present invention adopts bilinear interpolation.

[0046] S4. Generate a steering tracking map in combination with the drilling data to fine-tune the two-dimensional steering profile model.

[0047] S5. The fine-tuned two-dimensional guide profile model data is stored back into the spatial database to update the three-dimensional geological structure model.

[0048] In an exemplary embodiment of the method for adjusting microstructures in the steering area while drilling of the present invention, the drilling data may include real-time logging data, real-time comprehensive logging instrument data of the well, real-time MWD and LWD directional data of the well, and professional drilling data of the well.

[0049] In an exemplary embodiment of the method for adjusting microstructure of the steering area while drilling of the present invention, step S3 may include the following sub-steps:

[0050] S31, calling the three-dimensional geological structure model data body in the spatial database, and constructing a three-dimensional body model based on the spatial structure points (X, Y, Z, W).

[0051] S32, determining the cutting azimuth, and cutting the three-dimensional geological structure model longitudinally along the azimuth.

[0052] S33, after cutting, interpolation calculation is performed to convert the three-dimensional structural body structure (X, Y, Z, W) into a two-dimensional structural line structure (X, Y, W).

[0053] In this embodiment, step S4 may include the following sub-steps:

[0054] S41. Draw the actual drilling trajectory data of the well in a deviated well style on the background of the two-dimensional guide profile model.

[0055] S42. Fill the attributes of the two-dimensional steering profile model according to the curves of the adjacent wells, and invert and predict the curves of the same name of the well.

[0056] S43. Fit and compare the actual drilling curve of the well with the predicted curve of the well, and fine-tune the two-dimensional steering profile model according to the comparison results.

[0057] In this embodiment, the two-dimensional guidance profile model can be fine-tuned by inserting or deleting control points on the two-dimensional guidance profile model, adjusting the stratigraphic dip of a single layer horizontally, and batch adjusting the stratigraphic dip of all layers at the same horizontal position vertically.

[0058] In this embodiment, the fine-tuned two-dimensional guide profile model data may include spatial point data, line data, and attribute data of each point.

[0059] In this embodiment, step S5 may include the following sub-steps:

[0060] S51, storing the finely adjusted spatial point data, line data and attribute data of each point back into the spatial database to confirm the cutting orientation and action range of the adjusted two-dimensional guide profile model.

[0061] S52. Through the reverse updating algorithm, the adjustment of the layer plane and the dip angle in the two-dimensional structure is reversely deduced from the two-dimensional point coordinates (X, Y, W) to the three-dimensional point coordinates (X, Y, Z, W).

[0062] It should be noted that the reverse algorithm is exactly the opposite of the calculation method of three-dimensional projection and two-dimensional projection, so it is called the reverse algorithm. It reversely calculates the three-dimensional point based on the correlation between the azimuth angle, two-dimensional projection point, and trajectory coordinates.

[0063] S53, updating the three-dimensional geological structure model according to the three-dimensional point coordinates (X, Y, Z, W), that is, determining the point that needs to be corrected, writing the corrected point data to the location of the original point, and then saving the structure model file.

[0064] Another aspect of the present invention provides a micro-structure adjustment device for a drilling-guided area.

[0065] In another exemplary embodiment of the present invention, a device for adjusting micro-structures of a steering area while drilling may include a basic database, a spatial database, a cutting unit, a first adjusting unit, and a second adjusting unit.

[0066] Among them, the basic database is used to store structural area data, adjacent well data and drilling data.

[0067] Spatial database, used to store three-dimensional geological structure model and fine-tuned two-dimensional guidance profile model data.

[0068] The cutting unit is connected with the basic database and is used to cut the three-dimensional geological structure model along the designed trajectory azimuth to obtain a two-dimensional oriented section model.

[0069] The first adjustment unit is connected to the cutting unit and the spatial database respectively, and is used to generate a guidance tracking map in combination with the drilling data, and adjust the two-dimensional guidance profile model according to the guidance tracking map. Figure 3 The generated steering tracking map visualizes the relationship between the well being drilled and the 2D structural model. Figure 3 Line A in the figure represents the horizontal projection of the actual trajectory, and line B represents the projection of the designed trajectory. By combining the real-time data of the well being drilled to update the structural knowledge, the two-dimensional structural model can be edited and adjusted in real time.

[0070] The second adjustment unit is connected to the spatial database and is used to adjust the three-dimensional geological structure model according to the adjusted two-dimensional guide profile model data.

[0071] In this embodiment, the first adjustment unit may include a first drawing module, a second drawing module, a sharing module and an editing module. The first drawing module is used to draw the actual drilling curve of the well. The second drawing module is used to draw the prediction curve of the well. The sharing module is used to visualize the guidance tracking map and the two-dimensional guidance profile model to multiple users. The editing module is used to allow multiple users to adjust the two-dimensional guidance profile model at the same time.

[0072] In this embodiment, the editing module may include an insert submodule, a delete submodule, a lateral adjustment submodule, and a longitudinal adjustment submodule. The insert submodule is used to insert a control point on the construction line of the two-dimensional steering profile model. The delete submodule is used to delete a control point on the construction line of the two-dimensional steering profile model. The lateral adjustment submodule is used to adjust the stratum dip angle of a single layer in the lateral direction. The longitudinal adjustment submodule is used to batch adjust the stratum dip angles of all layers in the same horizontal position in the longitudinal direction.

[0073] In this embodiment, the second adjustment unit may include a first determination module, a second determination module and an update module. The first determination module is connected to the spatial database to confirm the cutting orientation and range of action of the adjusted two-dimensional guide profile model. The second determination module is connected to the first determination module to reversely deduce the adjustment of the layer plane and dip angle in the two-dimensional structure from the two-dimensional point coordinates (X, Y, W) to the three-dimensional point coordinates (X, Y, Z, W) according to the reverse update algorithm. The update module is connected to the second determination module to update the three-dimensional geological structure model according to the three-dimensional point coordinates (X, Y, Z, W).

[0074] Figure 4 The schematic diagram of the working mode of the online guide map of the micro-structure adjustment device for the drilling guide area of ​​the present invention is shown. Figure 4 As shown, the working mode of the adjustment device is as follows: by establishing a spatial database, the point and line data of the space and the attribute data of each point are stored for three-dimensional structural mapping; secondly, the original basic database is input with regional and adjacent well geological data, and the design and actual drilling data of the working well are connected, so as to be used for real-time data mapping of the well during the guidance process; before entering the target in the guidance process, the three-dimensional structural model is cut according to the azimuth of the designed trajectory to obtain a two-dimensional guidance profile model, and at the same time, the actual drilling trajectory, curve and other data of the well are drawn on the two-dimensional model background in an inclined well style; the two-dimensional model is filled with attributes through the curves of the adjacent wells, and then the predicted curve of the well is inverted, and the two-dimensional model is fine-tuned through the hyperbola fitting technology, and then the understanding of the formation model is continuously updated, and the model data is stored back into the database, thereby updating the three-dimensional structural model and realizing the closed loop of the guidance analysis process.

[0075] It can be seen that the micro-structure adjustment device for the drilling guide area of ​​the present invention mainly includes the following four advantages.

[0076] The first aspect is to cut out a two-dimensional geological structure model on the guide section from the three-dimensional spatial structure model. By calling the three-dimensional structure model data body in the spatial database, a three-dimensional body model is constructed based on the spatial structure points (X, Y, Z, W), and the model is constructed in a non-uniform grid. After confirming the cutting azimuth, the three-dimensional structure model is cut longitudinally along the azimuth, and interpolation calculation is performed after cutting. The three-dimensional structure body (X, Y, Z, W) structure is converted into a two-dimensional structure line (X, Y, W) structure, with the horizontal distance of the center wellhead as the reference coordinate system X in the horizontal direction and the vertical depth of the center well as the reference coordinate system Y in the vertical direction. The two-dimensional structure line model is a scattered point set (X, Y), and finally a real-time two-dimensional structure model is formed based on a group of two-dimensional structure lines for guidance analysis.

[0077] The second aspect is the online editing of the 2D geological model, which supports the online rapid adjustment of the model in combination with real-time data. By establishing a guide tracking map online, pulling the static data of the trajectory, formation, lithology, and curve of the neighboring wells, combining the real-time logging and directional data of the well, and extracting the 2D structural model data in real time, the position of the guide well in the formation is visualized by integrating the guide well data coordinate system with the 2D structural model data coordinate system, helping the guide engineer to establish the guide concept, follow up the latest drilling data in real time, and quickly establish and adjust the 2D structural model online, thus improving the timeliness of the 2D structural model adjustment.

[0078] The third aspect is to support multiple people to share model information, jointly adjust the two-dimensional stratigraphic model, and establish a more accurate two-dimensional structural model. Through online tracking and analysis, the two-dimensional structural model can be visualized and shared. All relevant parties can view the real-time guidance tracking map online to view the latest guidance progress of the well. It supports multiple people to collaborate to insert / delete control points on the structural line of the two-dimensional geological structural model, adjust the stratigraphic dip of a single layer horizontally, and adjust the stratigraphic dip of all layers at the same horizontal position vertically in batches. Through the above operations, the stratigraphic model can be quickly adjusted, the professional role of relevant personnel can be fully utilized, a consensus on structural understanding can be reached, and a more accurate guidance model can be established.

[0079] The fourth aspect is to restore the adjusted two-dimensional geological model to the three-dimensional spatial structural model to achieve micro-structural adjustments in the region. By confirming the cutting orientation and scope of the updated two-dimensional structural model, and through a reverse update algorithm, the adjustment of the layer plane and dip angle in the two-dimensional structure is reversely deduced from the two-dimensional point coordinates (X, Y, W) to the three-dimensional point coordinates (X, Y, Z, W), and finally updated to the three-dimensional structural model and stored back in the spatial database, the two-dimensional structural model is updated to the three-dimensional model, the regional structure is updated in real time, and the regional model in the spatial database is continuously corrected.

[0080] Moreover, all operations can be implemented on the Web side without the need for a stand-alone version (C / S side), which is innovative compared to the traditional workflow. Specifically, it is manifested as follows: ① By introducing a regional spatial database system, the traditional wellbore database system stores data for a single well, and there is no gap in regional knowledge data storage. ② By storing the spatial model within the region, it provides a way to precipitate regional knowledge. The guide engineer can extract regional data and directly enter the pre-drilling analysis process, reducing the workload and difficulty of the guide engineer to re-analyze and establish a regional model before drilling. ③ By sharing the internal spatial model of the region, real-time micro-structural adjustments are made to the same structural area at the same time, unifying the understanding of the regional structure of the relevant parties and ensuring the consistency and timeliness of the structural regional model. ④ By using a three-dimensional and two-dimensional spatial mapping algorithm combined with a regional spatial model, the problem of real-time application of three-dimensional structure in two-dimensional structure is solved, enriching the guidance analysis method, and finally improving the timeliness of guidance modeling through two-way data sharing.

[0081] According to the method for adjusting the microstructure of the steering area while drilling according to the present invention, it can be programmed as a computer program and the corresponding program code or instructions can be stored in a computer-readable storage medium. When the program code or instructions are executed by a processor, the processor executes the above-mentioned method for adjusting the microstructure of the steering area while drilling. The above-mentioned processor and memory can be included in a computer device.

[0082] According to an exemplary embodiment of another aspect of the present invention, there is also provided a computer-readable storage medium storing a computer program. The computer-readable storage medium stores a computer program that, when executed by a processor, causes the processor to execute the method for adjusting the microstructure of the while-drilling steering area according to the present invention. The computer-readable recording medium is any data storage device that can store data read out by a computer system. Examples of computer-readable recording media include: read-only memory, random access memory, read-only optical disk, magnetic tape, floppy disk, optical data storage device, and carrier wave (such as data transmission through the Internet via a wired or wireless transmission path).

[0083] According to another exemplary embodiment of the present invention, a computer device is provided. The computer device includes a processor and a memory. The memory is used to store a computer program. The computer program is executed by the processor so that the processor executes the computer program of the micro-structure adjustment method of the drilling steering area according to the present invention.

[0084] In summary, the beneficial effects of the present invention include at least one of the following:

[0085] (1) The present invention uses spatial database technology to achieve real-time sharing of structural models, supports multiple people to make real-time microstructural adjustments to the same structural area at the same time, unifies the understanding of regional structures by relevant parties, and ensures the timeliness of the structural regional model;

[0086] (2) The present invention breaks down the barriers between three-dimensional and two-dimensional structures, supports mapping from real three-dimensional space to two-dimensional space for guidance analysis, and at the same time, adjustments made in two-dimensional space can also correct three-dimensional space information;

[0087] (3) The present invention improves the timeliness of geosteering modeling by establishing online guidance analysis and making full use of real-time data to quickly establish and adjust the model;

[0088] (4) The present invention innovates the technical system for guiding model establishment and adjustment, upgrades independent model analysis to shared model analysis, and increases the participation of relevant parties.

[0089] Although the present invention has been described above in conjunction with the exemplary embodiments and the accompanying drawings, it should be apparent to those skilled in the art that various modifications may be made to the above-described embodiments without departing from the spirit and scope of the claims.

Claims

1. A method for adjusting microstructure of a drilling steering area, characterized in that: The adjustment method comprises the following steps: S1. Acquire structural area data, adjacent well data and drilling data, and store them in a basic database; S2, generating a three-dimensional geological structure model based on adjacent well data and / or structural area data, and storing the three-dimensional geological structure model in a structured manner in a spatial database; S3, cutting the three-dimensional geological structure model according to the designed trajectory azimuth to obtain a two-dimensional oriented section model; the step S3 includes the following sub-steps: Call the three-dimensional geological structure model data body in the spatial database, and build a three-dimensional model based on the spatial structure point (X, Y, Z, W); where X represents the geodetic coordinate x of the spatial structure point, Y represents the geodetic coordinate y of the spatial structure point, Z represents the altitude value, and W represents the attribute value of the spatial structure point; Determine the cutting azimuth, and cut the three-dimensional geological structure model longitudinally along the azimuth; After cutting, interpolation calculation is performed to convert the three-dimensional structure (X, Y, Z, W) into a two-dimensional structure line structure (X, Y, W); S4, generating a guidance tracking map in combination with the drilling data to fine-tune the two-dimensional guidance profile model; the step S4 includes the following sub-steps: drawing the actual drilling trajectory data of the well in a deviated well style on the background of the two-dimensional guidance profile model; Fill the attributes of the 2D steering profile model according to the curves of adjacent wells, and invert and predict the curves of the same name in the current well; The actual drilling curve of the well is fitted and compared with the predicted curve of the well, and the two-dimensional steering profile model is fine-tuned according to the comparison results; S5, storing the finely adjusted two-dimensional guide profile model data back to the spatial database to update the three-dimensional geological structure model; The fine-tuning method of the two-dimensional steering profile model is: by inserting or deleting control points on the two-dimensional steering profile model, the formation dip of a single layer is adjusted horizontally, and the formation dip of all layers at the same horizontal position is adjusted in batches vertically; The finely tuned two-dimensional guide profile model data includes spatial point data, line data and attribute data of each point; The step S5 includes the following sub-steps: storing the fine-tuned spatial point data, line data and attribute data of each point back to the spatial database to confirm the cutting orientation and scope of the adjusted two-dimensional guide profile model; using a reverse updating algorithm, reversely deducing the adjustment of the layer plane and dip angle in the two-dimensional structure from the two-dimensional point coordinates (X, Y, W) to the three-dimensional point coordinates (X, Y, Z, W); and updating the three-dimensional geological structure model according to the three-dimensional point coordinates (X, Y, Z, W).

2. The method for adjusting microstructure of the drilling guide area according to claim 1, characterized in that: The drilling data include real-time logging data, real-time comprehensive logging instrument data of the well, real-time MWD and LWD directional data of the well and professional drilling data of the well.

3. A micro-structure adjustment device for a drilling-guided area, characterized in that: The adjustment device is used to implement the micro-structure adjustment method of the drilling steering area according to claim 1 or 2, and includes a basic database, a spatial database, a cutting unit, a first adjustment unit and a second adjustment unit, wherein: The basic database is used to store structural area data, adjacent well data and drilling data; The spatial database is used to store the three-dimensional geological structure model and the fine-tuned two-dimensional guide profile model data; The cutting unit is connected to the basic database and is used to cut the three-dimensional geological structure model along the designed trajectory azimuth to obtain a two-dimensional guided section model; The first adjustment unit is connected to the cutting unit and the spatial database respectively, and is used to generate a guidance tracking map in combination with the drilling data, and adjust the two-dimensional guidance profile model according to the guidance tracking map; The second adjustment unit is connected to the spatial database and is used to adjust the three-dimensional geological structure model according to the adjusted two-dimensional guidance profile model data.

4. The micro-structure adjustment device for the drilling guide area according to claim 3, characterized in that: The first adjustment unit includes a first drawing module, a second drawing module, a sharing module and an editing module, wherein: The first drawing module is used to draw the actual drilling curve of the well; The second drawing module is used to draw the prediction curve of the well; The sharing module is used to visually display the guidance tracking diagram and the two-dimensional guidance profile model to multiple users; The editing module is used for allowing multiple users to adjust the two-dimensional guide profile model at the same time.

5. The micro-structure adjustment device for the drilling guide area according to claim 4, characterized in that: The editing module includes an inserting submodule, a deleting submodule, a horizontal adjusting submodule and a vertical adjusting submodule, wherein: The inserting submodule is used to insert control points on the construction line of the two-dimensional guide section model; The deleting submodule is used to delete control points on the construction line of the two-dimensional guide section model; The lateral adjustment submodule is used to adjust the stratum dip angle of a single layer in the lateral direction; The longitudinal adjustment submodule is used to batch adjust the formation dip angles of all layers at the same horizontal position in the longitudinal direction.

6. The micro-structure adjustment device for the drilling steering area according to claim 3, characterized in that: The second adjustment unit includes a first determination module, a second determination module and an update module, wherein: The first determination module is connected to the spatial database and is used to confirm the cutting orientation and action range of the adjusted two-dimensional guide profile model; The second determination module is connected to the first determination module and is used to reversely deduce the adjustment of the layer plane and the dip angle in the two-dimensional structure from the two-dimensional point coordinates (X, Y, W) to the three-dimensional point coordinates (X, Y, Z, W) according to the reverse update algorithm; The updating module is connected to the second determining module and is used to update the three-dimensional geological structure model according to the three-dimensional point coordinates (X, Y, Z, W).

7. A computer device, characterized in that: The computer device comprises: processor; The memory stores a computer program, and when the computer program is executed by the processor, the method for adjusting the microstructure of the drilling guide area according to claim 1 or 2 is implemented.

8. A computer-readable storage medium storing a computer program, characterized in that: When the computer program is executed by a processor, the method for adjusting microstructure of the drilling guide area as claimed in claim 1 or 2 is implemented.

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