A horizontal well steering stratum model creation method, device, equipment, medium and product
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- CHINA NAT PETROLEUM CORP
- Filing Date
- 2024-12-23
- Publication Date
- 2026-06-23
AI Technical Summary
During horizontal well drilling, the initial horizontal well guide formation model has low accuracy due to formation undulations, which affects the drilling success rate and engineering risks.
By acquiring seismic plane data and coordinate information of each layer in the inclined shaft, the key layer of the inclined shaft is determined, and the original depth of other layers in the inclined shaft is corrected according to the depth of the seismic plane location, thus establishing a target stratum model.
It improves the accuracy and efficiency of horizontal well directional modeling, ensures that the formation model better matches the actual situation, and reduces engineering risks.
Smart Images
Figure CN122260419A_ABST
Abstract
Description
Technical Field
[0001] The embodiments of the present invention relate to the field of geophysical exploration technology, and in particular to a method, apparatus, equipment, medium and product for creating a horizontal well directional formation model. Background Technology
[0002] With the rapid development of unconventional oil and gas resource exploration and development, horizontal wells combined with large-scale fracturing are the main means to achieve economies of scale. During horizontal well drilling, geological steering is an important technique for improving drilling success rates and mitigating engineering risks. Due to the need for cost reduction and efficiency improvement, many horizontal well sites use deviated wells as pilot wells to establish initial horizontal well steerable formation models. Formation undulations can cause inaccurate formation thickness measurements during modeling, resulting in lower accuracy of the established initial horizontal well steerable formation model. Summary of the Invention
[0003] This invention provides a method, apparatus, equipment, medium, and product for creating a horizontal well directional formation model, thereby improving the accuracy of horizontal well directional modeling.
[0004] According to one aspect of the present invention, a method for creating a horizontal well steered formation model is provided, comprising:
[0005] Acquire seismic plane data, coordinate information of each layer of the inclined well, and initial wellbore information. The seismic plane data is used to characterize the undulation of the target layer of the horizontal well. The coordinate information of each layer of the inclined well in the work area includes: the horizontal offset of each layer with the wellhead of the horizontal well as the original depth of each layer.
[0006] Based on the seismic strata data and the coordinate information of each layer of the inclined shaft, the key layers of the inclined shaft are determined;
[0007] Based on the depth of the seismic plane position corresponding to the coordinate information of other inclined well layers (excluding the key layer) and the depth of the seismic plane position corresponding to the coordinate information of the key layer of the inclined well, the original depth of other inclined well layers (excluding the key layer) is corrected to obtain the target depth of each layer of the inclined well.
[0008] A target formation model is created based on the target depth of each layer of the inclined well, the original depth of each layer of the inclined well, the initial wellbore information, and the seismic plane data.
[0009] According to another aspect of the present invention, a horizontal well-guided formation model creation apparatus is provided, the apparatus comprising:
[0010] The acquisition module is used to acquire seismic plane data, coordinate information of each layer of the inclined well, and initial wellbore information. The seismic plane data is used to characterize the undulation of the target layer of the horizontal well. The coordinate information of each layer of the inclined well in the work area includes: the horizontal offset of each layer with the wellhead of the horizontal well as the original depth of each layer.
[0011] The key layer determination module is used to determine the key layers of the inclined shaft based on the seismic plane data and the coordinate information of each layer of the inclined shaft;
[0012] The target depth determination module for each layer of the inclined shaft is used to correct the original depth of the other layers of the inclined shaft (excluding the key layer) based on the depth of the seismic plane position corresponding to the coordinate information of the other layers of the inclined shaft (excluding the key layer) and the depth of the seismic plane position corresponding to the coordinate information of the key layer of the inclined shaft, so as to obtain the target depth of each layer of the inclined shaft.
[0013] The target formation model creation module is used to create a target formation model based on the target depth of each layer of the inclined well, the original depth of each layer of the inclined well, the initial wellbore information, and the seismic plane data.
[0014] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:
[0015] At least one processor; and
[0016] A memory communicatively connected to the at least one processor; wherein,
[0017] The memory stores a computer program that can be executed by the at least one processor, which enables the at least one processor to perform the horizontal well directional formation model creation method according to any embodiment of the present invention.
[0018] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions for causing a processor to execute and implement the horizontal well steered formation model creation method according to any embodiment of the present invention.
[0019] According to another aspect of the present invention, a computer program product is provided, which, when executed by a processor, implements the horizontal well steered formation model creation method as described in any of the embodiments of the present invention.
[0020] This invention acquires seismic plane data, coordinate information of each layer of the deviated well, and initial wellbore information. Based on the seismic plane data and the coordinate information of each layer of the deviated well, the key layer of the deviated well is determined. Based on the depth of the seismic plane positions corresponding to the coordinate information of other deviated well layers (excluding the key layer) and the depth of the seismic plane positions corresponding to the coordinate information of the key layer of the deviated well, the original depths of the other deviated well layers (excluding the key layer) are corrected to obtain the target depths of each deviated well layer. Based on the target depths of each deviated well layer, the original depths of each deviated well layer, the initial wellbore information, and the seismic plane data, a target formation model is created. This enables the use of seismic data to determine the undulation state of the formation when the deviated well is used as a pilot well to establish a formation model, correcting the thickness of the formation encountered during drilling on the deviated well, making the initial formation model more consistent with the actual drilling conditions of the deviated well, and improving the accuracy of horizontal well directional modeling.
[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description
[0022] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0023] Figure 1 This is a flowchart of a method for creating a horizontal well guided formation model according to an embodiment of the present invention;
[0024] Figure 2 This is a cross-sectional view of an inclined shaft and seismic depth layer within a work area in an embodiment of the present invention;
[0025] Figure 3 This is a depth profile after seismic horizon correction for deviated wells participating in modeling and layering in an embodiment of the present invention;
[0026] Figure 4 This is a schematic diagram of the formation model constructed according to the pre-correction deviated well layering in an embodiment of the present invention;
[0027] Figure 5 This is a schematic diagram of the formation model constructed according to the corrected deviated well layering in an embodiment of the present invention;
[0028] Figure 6 This is a schematic diagram of a newly created guide model interface in an embodiment of the present invention;
[0029] Figure 7 This is a schematic diagram of the initial wellbore information within the inclined well layers 2-6 in this embodiment of the invention projected onto the corrected layer range;
[0030] Figure 8 This is a schematic diagram of the initial wellbore information within all layers of the inclined well in an embodiment of the present invention projected onto the corrected layer range;
[0031] Figure 9 This is a schematic diagram of the target formation model obtained by filling the target wellbore information into the initial formation model in an embodiment of the present invention;
[0032] Figure 10 This is a schematic diagram of the structure of a horizontal well directional formation model creation device according to an embodiment of the present invention;
[0033] Figure 11 This is a schematic diagram of the structure of an electronic device according to an embodiment of the present invention. Detailed Implementation
[0034] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.
[0035] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.
[0036] It is understood that before using the technical solutions disclosed in the various embodiments of this disclosure, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in this disclosure in an appropriate manner in accordance with relevant laws and regulations, and user authorization should be obtained.
[0037] Example 1
[0038] Figure 1This is a flowchart illustrating a method for creating a horizontal well directional formation model according to an embodiment of the present invention. This embodiment is applicable to the creation of horizontal well directional formation models. The method can be executed by a horizontal well directional formation model creation device according to this embodiment, which can be implemented in software and / or hardware, such as... Figure 1 As shown, the method specifically includes the following steps:
[0039] S110 acquires seismic plane data, coordinate information of each layer of the inclined shaft, and initial shaft information.
[0040] In this embodiment, the seismic strata data is used to characterize the undulations of the target layer in the horizontal well, and may include, for example, interpreted horizons and structural maps. The coordinate information of each layer in the inclined well includes: the horizontal offset of each layer relative to the wellhead of the horizontal well and the original depth of each layer. The horizontal offset of each layer represents its planar coordinates, and the inclined well can be an inclined well within the work area. For example, the original depths of each layer in the inclined well are shown in Table 1:
[0041] Table 1
[0042] Layer name Depth (m) 2-1 2723.13 2-2 2731.87 2-3 2762.72 2-4 2779.10 2-5 2794.38 2-6 2814.67 2-7 2828.64 3-3 2837.36 3-4 2846.02 3-5 2850.06 3-6 2851.80 3-7 2855.33
[0043] In this embodiment, the seismic plane data may include coordinate information of points along the intersection of the seismic plane and a vertical profile along the horizontal well. The initial wellbore information includes logging data, well logging data, etc.
[0044] S120, Based on the seismic strata data and the coordinate information of each layer of the inclined shaft, determine the key layer of the inclined shaft.
[0045] In this embodiment, the key layer of the inclined shaft is the inclined shaft layer that meets preset conditions. The preset conditions may be: it can be identified by both earthquakes and surface observations. Based on the earthquake plane data and the coordinate information of each layer of the inclined shaft, the key layer of the inclined shaft can be determined by: identifying the inclined shaft layer to which the intersection of the earthquake plane and the vertical profile along the horizontal shaft intersects with the inclined shaft trajectory belongs.
[0046] S130, based on the depth of the seismic plane position corresponding to the coordinate information of the other inclined well layers (excluding the key layer) and the depth of the seismic plane position corresponding to the coordinate information of the key layer of the inclined well, the original depth of the other inclined well layers (excluding the key layer) is corrected to obtain the target depth of each layer of the inclined well.
[0047] In this embodiment, the other deviated well layers besides the key layer can be any deviated well layer other than the key layer, and whose distance from the wellhead of the horizontal well is less than the distance between the key layer and the wellhead of the horizontal well. For example, it could be, such as Figure 2 As shown, Figure 2The dashed line in the diagram represents the intersection of the seismic plane and the vertical profile along the well. Figure 2 The solid lines in the diagram represent the trajectories of the inclined shafts. Other inclined shaft layers, excluding the critical layer, include: layers 2-4 to 3-7 (layers 3-4 to 3-7). Figure 2 (Not shown in the image). It should be noted that layers 2-3 to 3-7 of the deviated well are used in the horizontal well steering modeling.
[0048] In this embodiment, the depth of the seismic plane location corresponding to the coordinate information of the key layer of the inclined shaft is the ordinate of the point on the intersection line of the seismic plane corresponding to the key layer of the inclined shaft and the vertical profile along the shaft. For example, the depth of the seismic plane location corresponding to the coordinate information of the key layer of the inclined shaft can be the ordinate of the point on the intersection line of the seismic plane and the vertical profile along the shaft that has the same abscissa as the key layer of the inclined shaft. Figure 2 As shown, the depth of the seismic plane corresponding to layers 2-3 of the inclined shaft is the ordinate of the point on the intersection line of the seismic plane with the same abscissa as layer 2-3 and the vertical profile along the shaft (2762.7m). The depth of the seismic plane corresponding to layers 2-4 of the inclined shaft is the ordinate of the point on the intersection line of the seismic plane with the same abscissa as layer 2-4 and the vertical profile along the shaft (2756.8m).
[0049] In this embodiment, the original depths of the other inclined well layers (excluding the key layer) are corrected based on the depths of the seismic plane positions corresponding to the coordinate information of the other inclined well layers (excluding the key layer) and the depths of the seismic plane positions corresponding to the coordinate information of the key layer of the inclined well, so as to obtain the target depths of each layer of the inclined well. This can be achieved by: determining the correction amount for each layer of the inclined well based on the depths of the seismic plane positions corresponding to the coordinate information of the other inclined well layers (excluding the key layer) and the depths of the seismic plane positions corresponding to the coordinate information of the key layer of the inclined well; and correcting the original depths of the other inclined well layers (excluding the key layer) based on the correction amounts of each layer of the inclined well to obtain the target depths of each layer of the inclined well.
[0050] Optionally, based on the depth of the seismic plane positions corresponding to the coordinate information of other inclined well layers besides the key layer and the depth of the seismic plane positions corresponding to the coordinate information of the key layer of the inclined well, the original depths of other inclined well layers besides the key layer are corrected to obtain the target depths of each layer of the inclined well, including:
[0051] The correction amount for each layer of the inclined shaft is determined based on the depth of the seismic plane corresponding to the coordinate information of the other inclined shaft layers (excluding the key layer) and the depth of the seismic plane corresponding to the coordinate information of the key layer of the inclined shaft.
[0052] In this embodiment, the correction amount for each layer of the inclined shaft is determined based on the depth of the seismic plane position corresponding to the coordinate information of other inclined shaft layers (excluding the key layer) and the depth of the seismic plane position corresponding to the coordinate information of the key layer of the inclined shaft. This can be achieved by determining the difference between the depth of the seismic plane position corresponding to the coordinate information of the key layer and the depth of the seismic plane position corresponding to the coordinate information of other inclined shaft layers (excluding the key layer) as the correction amount for each layer of the inclined shaft. Alternatively, the correction amount for each layer of the inclined shaft can be determined by determining the depth of the seismic plane position corresponding to the coordinate information of the key layer as the reference depth. The difference between the depth of the seismic plane position corresponding to the coordinate information of other inclined shaft layers (excluding the key layer) and the reference depth is then determined as the correction amount for each layer of the inclined shaft.
[0053] Based on the correction values of each layer of the inclined shaft, the original depths of the other layers of the inclined shaft, except for the key layer, are corrected to obtain the target depths of each layer of the inclined shaft.
[0054] In this embodiment, based on the correction amounts of each layer of the inclined shaft, the original depths of the other inclined shaft layers (excluding the key layer) are corrected to obtain the target depths of each layer. This can be achieved by summing the original depths of the other inclined shaft layers (excluding the key layer) with the correction amounts of each layer, and determining the target depths of the other inclined shaft layers (excluding the key layer). For example, Z... i =z i +△d i , where z i Z represents the original depth of the inclined well layer i. i For the target depth of the inclined well layer i, Δd i This is the correction amount for the inclined well layer i.
[0055] In a specific example, the depths of each layer of the inclined shaft before correction (original depth) and after correction (target depth) are shown in Table 2:
[0056] Table 2
[0057] Layer name Depth before correction (m) Corrected depth (m) 2-3 2762.72 2762.72 2-4 2779.10 2785.02 2-5 2794.38 2805.07 2-6 2814.67 2834.62 2-7 2828.64 2857.74 3-3 2837.36 2872.77 3-4 2846.02 2891.17 3-5 2850.06 2896.47 3-6 2851.80 2898.65 3-7 2855.33 2904.42
[0058] Optionally, based on the depth of the seismic plane positions corresponding to the coordinate information of other inclined shaft layers (excluding the key layer) and the depth of the seismic plane positions corresponding to the coordinate information of the key layer of the inclined shaft, the correction amount for each layer of the inclined shaft is determined, including:
[0059] The depth of the seismic plane corresponding to the coordinate information of the key layer of the inclined shaft is determined as the reference depth.
[0060] In this embodiment, the depth of the seismic plane corresponding to the coordinate information of the key layer of the inclined shaft can be determined as the reference depth by using the ordinate of the point on the intersection line of the seismic plane and the vertical profile along the shaft that has the same x-coordinate as the key layer of the inclined shaft as the reference depth. It should be noted that the depth of the key layer of the inclined shaft is not adjusted.
[0061] The difference between the depth of the seismic plane location and the reference depth corresponding to the coordinate information of other inclined well layers (excluding the key layer) is determined as the correction amount for each layer of the inclined well.
[0062] In this embodiment, the ordinate of the point on the intersection line of the seismic plane and the vertical profile along the well that has the same abscissa as the other inclined well layers (excluding the key layer) is determined as the depth of the seismic plane location corresponding to the coordinate information of the other inclined well layers (excluding the key layer).
[0063] For example, if the depth of the seismic plane corresponding to the coordinate information of the key layer of the inclined shaft is d... k The depth of the seismic plane location corresponding to the coordinate information of the other inclined well layers i (excluding the key layer) is d. i The correction amount △d for the inclined well layer i i =d k -d i .
[0064] S140, Based on the target depth of each layer of the inclined well, the original depth of each layer of the inclined well, the initial wellbore information, and the seismic plane data, create a target formation model.
[0065] In this embodiment, the method for creating a target formation model based on the target depth of each layer of the inclined well, the original depth of each layer of the inclined well, the initial wellbore information, and the seismic plane data can be as follows: An initial formation model is established based on the target depth of the other layers of the inclined well (excluding the key layer) and the seismic plane data; a scale factor for each layer of the inclined well is determined based on the target depth of each layer of the inclined well and the original depth of each layer of the inclined well; using the key layer of the inclined well as a reference, the initial wellbore information of each layer of the inclined well is projected onto the initial formation model according to the scale factor of each layer of the inclined well to obtain the target formation model.
[0066] This invention acquires seismic plane data, coordinate information of each layer of the inclined well, and initial wellbore information; determines the key layer of the inclined well based on the seismic plane data and the coordinate information of each layer of the inclined well; corrects the original depth of the other inclined well layers (excluding the key layer) based on the depth of the seismic plane position corresponding to the coordinate information of the other inclined well layers and the depth of the seismic plane position corresponding to the coordinate information of the key layer of the inclined well, to obtain the target depth of each layer of the inclined well; and creates a target formation model based on the target depth of each layer of the inclined well, the original depth of each layer of the inclined well, the initial wellbore information, and the seismic plane data. This can improve the efficiency and accuracy of horizontal well steering modeling by correcting the thickness of each formation during modeling.
[0067] Optionally, based on the target depth of each layer of the inclined well, the original depth of each layer of the inclined well, the initial wellbore information, and the seismic bedding data, a target formation model is created, including:
[0068] An initial stratigraphic model is established based on the target depths of the other deviated well layers (excluding the key layer) and the seismic strata data.
[0069] In this embodiment, an initial stratigraphic model of uniform thickness is established by utilizing the target depth of the corrected deviated well layering and combining it with the trend of seismic layer data. For example, it could be, as... Figure 3 As shown, line A is the depth profile after seismic horizon correction for the deviated well participating in the modeling layered structure; line B is the intersection of the seismic bedding plane and the vertical profile along the well; and line C is the depth profile before seismic horizon correction for the deviated well participating in the modeling layered structured structure. The initial stratigraphic model is obtained by shifting line B downwards along the depth of each layer in line A. Figure 4 The initial stratigraphic model was constructed based on the layers before correction. Figure 5 This is the initial stratigraphic model constructed according to the corrected strata.
[0070] The technical solution in this embodiment uses seismic data to calculate the correction amount between the depth of the key layer in the deviated well and the depths of other deviated well layers involved in the modeling, and then corrects the depths of the layers other than the key layer. This yields the accurate thickness of the initial formation model for the horizontal well guidance system, achieving higher accuracy compared to conventional uncorrected modeling methods.
[0071] Based on the target depth and the original depth of each layer of the inclined shaft, the scaling factor of each layer of the inclined shaft is determined.
[0072] In this embodiment, the method for determining the proportional coefficient of each layer of the inclined shaft based on the target depth and the original depth of each layer of the inclined shaft can be as follows: determine the target thickness of each layer of the inclined shaft based on the target depth; determine the original thickness of each layer of the inclined shaft based on the original depth; and determine the ratio of the target thickness of each layer of the inclined shaft to the original thickness of each layer of the inclined shaft as the proportional coefficient of each layer of the inclined shaft.
[0073] Using the key layer of the inclined well as a reference, the initial wellbore information of each layer of the inclined well is projected onto the initial formation model according to the scaling factor of each layer of the inclined well to obtain the target formation model.
[0074] In this embodiment, the method for obtaining the target formation model by projecting the initial wellbore information of each layer of the inclined well onto the initial formation model based on the scaling factor of each layer of the inclined well, using the key layer of the inclined well as the key layer of the inclined well as the scaling factor of each layer of the inclined well, is as follows: the initial wellbore information of each layer of the inclined well is projected onto the depth range corresponding to the target thickness of each layer of the inclined well based on the scaling factor of each layer of the inclined well, thereby obtaining the target wellbore information of each layer of the inclined well; the target wellbore information of each layer of the inclined well is then filled into the initial formation model to obtain the target formation model.
[0075] Optionally, based on the target depth of each layer of the inclined shaft and the original depth of each layer, the scaling factor for each layer of the inclined shaft is determined, including:
[0076] The target thickness of each layer of the inclined shaft is determined based on the target depth of each layer.
[0077] In this embodiment, the target thickness of each layer of the inclined shaft is determined based on the difference in target depth between adjacent layers. For example, the target thickness of layer i+1 of the inclined shaft can be determined as the difference between the target depth of layer i and the target depth of layer i.
[0078] The original thickness of each layer of the inclined shaft is determined based on the original depth of each layer.
[0079] In this embodiment, the original thickness of each layer of the inclined shaft is determined based on the difference in the original depth of adjacent layers of the inclined shaft. For example, the original thickness of the inclined shaft layer i+1 can be determined by the difference between the original depth of the inclined shaft layer i+1 and the original depth of the inclined shaft layer i.
[0080] The ratio of the target thickness of each layer of the inclined shaft to the original thickness of each layer of the inclined shaft is determined as the proportional coefficient of each layer of the inclined shaft.
[0081] In this embodiment, the target thickness h of each layer of the inclined shaft is determined. new The original thickness h of each layer of the inclined shaft before correction oldBy dividing the corresponding values, the proportional coefficients s = d for each layer of the inclined shaft can be obtained. new / d old For example, the proportion coefficients of each layer (layers 2-4-3-7) in the inclined shaft are shown in Table 3:
[0082] Table 3
[0083] Layer name Thickness before correction (m) Corrected thickness (m) proportionality coefficient s 2-4 16.38 22.3 1.36 2-5 15.28 20.05 1.31 2-6 20.29 29.55 1.46 2-7 13.97 23.12 1.65 3-3 8.72 15.03 1.72 3-4 8.66 18.4 2.12 3-5 4.03 5.3 1.31 3-6 1.75 2.18 1.25 3-7 3.53 5.77 1.63
[0084] Optionally, using the key layer of the deviated well as a reference, the initial wellbore information of each layer of the deviated well is projected onto the initial formation model according to the scaling factor of each layer of the deviated well to obtain the target formation model, including:
[0085] Using the key layer of the inclined shaft as a reference, the initial wellbore information of each layer of the inclined shaft is projected onto the depth range corresponding to the target thickness of each layer of the inclined shaft according to the proportional coefficient of each layer of the inclined shaft, so as to obtain the target wellbore information of each layer of the inclined shaft.
[0086] The target wellbore information of each layer of the inclined well is filled into the initial formation model to obtain the target formation model.
[0087] In a specific example, the seismic interpretation horizons of each layer and depth of the inclined shaft within the work area are as follows: Figure 2 As shown in the figure. The coordinate data for each layer are shown in Table 1, where depth is the elevation depth (positive for below sea level). Figure 6 As shown, layers 2-3 to 3-7 above the inclined well are selected for horizontal well steering modeling. Layer 2-3 above the well, corresponding to seismic horizon ES2-3, is selected as the key layer. The depth d of the seismic plane data location corresponding to the coordinates (x, y) of the key layer 2-3 is calculated. k =2762.72m, used as the baseline depth, will not be adjusted. For example... Figure 2 Taking layer 2-4 as an example, the depth d corresponding to the seismic horizon at the plane coordinates (527831.615.4271332.14) of layer 2-4 is calculated to be 2756.8m. The correction Δd = 2762.72 – 2756.8 gives 5.92m. The new depth of layer 2-4 is calculated as 2779.1 + 5.92 = 2785.02m. The corrected depths of all other layers are then calculated. Using the new layer elevation depths and combining them with the trend of the seismic layer data, an initial stratigraphic model with equal thickness is established. However, due to inaccurate thickness, it cannot correspond to the layers of the inclined well. The target thickness h of each layer in the inclined well is then calculated. new The original thickness h of each layer of the inclined shaft before correction old By dividing the corresponding values, the proportional coefficients s = d for each layer of the inclined shaft can be obtained. new / d old .like Figure 7As shown, taking layer 2-6 as an example, the elevation depth of the top of layer 2-6 (bottom of layer 2-5) before correction is 2794.38m, and the depth after correction is 2805.07m, with a scale factor of 1.46. A depth projection is performed on a point in the well logging GR curve (initial wellbore information) at a depth of 2794.5m with a value of 94.381api. The new depth calculation method is (2794.5-2794.38)*1.46+2805.07=2805.2452m. The original depth of 2794.5m with a GR value (initial wellbore information) of 94.381api is projected to 2805.2452m. This process continues, projecting all GR curves within layer 2-6 to the new depth range, as shown below. Figure 8 As shown. The formation model is filled with the GR curve (target wellbore information) projected onto the new stratification range, as shown. Figure 9 As shown.
[0088] Example 2
[0089] Figure 10 This is a schematic diagram of a horizontal well directional formation model creation device provided in an embodiment of the present invention. This embodiment is applicable to the creation of horizontal well directional formation models. The device can be implemented using software and / or hardware, and can be integrated into any device that provides horizontal well directional formation model creation functionality, such as… Figure 10 As shown, the horizontal well directional formation model creation device specifically includes: an acquisition module 210, a key layer determination module 220, a target depth determination module 230 for each layer of the inclined well, and a target formation model creation module 240.
[0090] The acquisition module is used to acquire seismic plane data, coordinate information of each layer of the inclined well, and initial wellbore information. The seismic plane data is used to characterize the undulation of the target layer of the horizontal well. The coordinate information of each layer of the inclined well in the work area includes: the horizontal offset of each layer with the wellhead of the horizontal well as the original depth of each layer.
[0091] The key layer determination module is used to determine the key layers of the inclined shaft based on the seismic plane data and the coordinate information of each layer of the inclined shaft;
[0092] The target depth determination module for each layer of the inclined shaft is used to correct the original depth of the other layers of the inclined shaft (excluding the key layer) based on the depth of the seismic plane position corresponding to the coordinate information of the other layers of the inclined shaft (excluding the key layer) and the depth of the seismic plane position corresponding to the coordinate information of the key layer of the inclined shaft, so as to obtain the target depth of each layer of the inclined shaft.
[0093] The target formation model creation module is used to create a target formation model based on the target depth of each layer of the inclined well, the original depth of each layer of the inclined well, the initial wellbore information, and the seismic plane data.
[0094] The above-described products can perform the methods provided in any embodiment of the present invention, and have the corresponding functional modules and beneficial effects for performing the methods.
[0095] Example 3
[0096] Figure 11 A schematic diagram of an electronic device 10 that can be used to implement embodiments 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, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.
[0097] like Figure 11 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.
[0098] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.
[0099] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, central processing unit (CPU), graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as the horizontal well guided formation model creation method.
[0100] In some embodiments, the horizontal well-oriented formation model creation method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the horizontal well-oriented formation model creation method described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform the horizontal well-oriented formation model creation method by any other suitable means (e.g., by means of firmware).
[0101] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.
[0102] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.
[0103] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.
[0104] To provide 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 pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide 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 sound input, voice input, or tactile input).
[0105] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.
[0106] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.
[0107] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.
[0108] This invention also provides a computer program product, including a computer program that, when executed by a processor, implements the horizontal well directional formation model creation method according to any embodiment of the invention.
[0109] In implementing the computer program product, computer program code for performing the operations of this invention can be written in one or more programming languages or a combination thereof. Programming languages include object-oriented programming languages such as Java, Smalltalk, and C++, as well as conventional procedural programming languages such as C or similar languages. The program code can be executed entirely on the user's computer, partially on the user's computer, as a standalone software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In cases involving remote computers, the remote computer can be connected to the user's computer via any type of network—including a local area network (LAN) or a wide area network (WAN)—or can be connected to an external computer (e.g., via the Internet using an Internet service provider).
[0110] The specific embodiments described above do not constitute a limitation on the scope of protection of this 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 principles of this invention should be included within the scope of protection of this invention.
Claims
1. A method for creating a horizontal well steered formation model, characterized in that, include: Acquire seismic plane data, coordinate information of each layer of the inclined well, and initial wellbore information. The seismic plane data is used to characterize the undulation of the target layer of the horizontal well. The coordinate information of each layer of the inclined well in the work area includes: the horizontal offset of each layer with the wellhead of the horizontal well as the original depth of each layer. Based on the seismic strata data and the coordinate information of each layer of the inclined shaft, the key layers of the inclined shaft are determined; Based on the depth of the seismic plane position corresponding to the coordinate information of other inclined well layers (excluding the key layer) and the depth of the seismic plane position corresponding to the coordinate information of the key layer of the inclined well, the original depth of other inclined well layers (excluding the key layer) is corrected to obtain the target depth of each layer of the inclined well. A target formation model is created based on the target depth of each layer of the inclined well, the original depth of each layer of the inclined well, the initial wellbore information, and the seismic plane data.
2. The method according to claim 1, characterized in that, Based on the target depth of each layer of the inclined well, the original depth of each layer of the inclined well, the initial wellbore information, and the seismic strata data, a target formation model is created, including: An initial stratigraphic model is established based on the target depths of the other deviated well layers (excluding the key layer) and the seismic plane data. Based on the target depth and the original depth of each layer of the inclined shaft, determine the scaling factor of each layer of the inclined shaft; Using the key layer of the inclined well as a reference, the initial wellbore information of each layer of the inclined well is projected onto the initial formation model according to the scaling factor of each layer of the inclined well to obtain the target formation model.
3. The method according to claim 2, characterized in that, Based on the target depth and the original depth of each layer of the inclined shaft, determine the scaling factor for each layer, including: Determine the target thickness of each layer of the inclined shaft based on the target depth of each layer. The original thickness of each layer of the inclined shaft is determined based on the original depth of each layer. The ratio of the target thickness of each layer of the inclined shaft to the original thickness of each layer of the inclined shaft is determined as the proportional coefficient of each layer of the inclined shaft.
4. The method according to claim 3, characterized in that, Using the key layer of the inclined shaft as a reference, the initial wellbore information of each layer of the inclined shaft is projected onto the initial formation model according to the scaling factor of each layer, to obtain the target formation model, including: Using the key layer of the inclined shaft as a reference, the initial wellbore information of each layer of the inclined shaft is projected onto the depth range corresponding to the target thickness of each layer of the inclined shaft according to the proportional coefficient of each layer of the inclined shaft, so as to obtain the target wellbore information of each layer of the inclined shaft. The target wellbore information of each layer of the inclined well is filled into the initial formation model to obtain the target formation model.
5. The method according to claim 1, characterized in that, Based on the depth of the seismic plane positions corresponding to the coordinate information of other inclined well layers (excluding the key layer) and the depth of the seismic plane positions corresponding to the coordinate information of the key layer of the inclined well, the original depths of the other inclined well layers (excluding the key layer) are corrected to obtain the target depths of each layer of the inclined well, including: The correction amount for each layer of the inclined shaft is determined based on the depth of the seismic plane position corresponding to the coordinate information of the other inclined shaft layers (excluding the key layer) and the depth of the seismic plane position corresponding to the coordinate information of the key layer of the inclined shaft. Based on the correction values of each layer of the inclined shaft, the original depths of the other layers of the inclined shaft, except for the key layer, are corrected to obtain the target depths of each layer of the inclined shaft.
6. The method according to claim 5, characterized in that, Based on the depth of the seismic plane positions corresponding to the coordinate information of other inclined shaft layers (excluding the key layer) and the depth of the seismic plane positions corresponding to the coordinate information of the key layer of the inclined shaft, the correction amount for each layer of the inclined shaft is determined, including: The depth of the seismic plane location corresponding to the coordinate information of the key layer of the inclined shaft is determined as the reference depth; The difference between the depth of the seismic plane location and the reference depth corresponding to the coordinate information of other inclined well layers (excluding the key layer) is determined as the correction amount for each layer of the inclined well.
7. A horizontal well directional formation model creation device, characterized in that, include: The acquisition module is used to acquire seismic plane data, coordinate information of each layer of the inclined well, and initial wellbore information. The seismic plane data is used to characterize the undulation of the target layer of the horizontal well. The coordinate information of each layer of the inclined well in the work area includes: the horizontal offset of each layer with the wellhead of the horizontal well as the original depth of each layer. The key layer determination module is used to determine the key layers of the inclined shaft based on the seismic plane data and the coordinate information of each layer of the inclined shaft; The target depth determination module for each layer of the inclined shaft is used to correct the original depth of the other layers of the inclined shaft (excluding the key layer) based on the depth of the seismic plane position corresponding to the coordinate information of the other layers of the inclined shaft (excluding the key layer) and the depth of the seismic plane position corresponding to the coordinate information of the key layer of the inclined shaft, so as to obtain the target depth of each layer of the inclined shaft. The target formation model creation module is used to create a target formation model based on the target depth of each layer of the inclined well, the original depth of each layer of the inclined well, the initial wellbore information, and the seismic plane data.
8. 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 that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the horizontal well directional formation model creation method according to any one of claims 1-6.
9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that cause a processor to execute the horizontal well directional formation model creation method according to any one of claims 1-6.
10. A computer program product, characterized in that, The computer program product includes a computer program that, when executed by a processor, implements the method for creating a horizontal well guided formation model according to any one of claims 1-6.