CN115081168A - Stratum evaluation interpretation method and device, storage medium and electronic equipment - Google Patents
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Abstract
The invention provides a stratum evaluation interpretation method, a stratum evaluation interpretation device, a storage medium and electronic equipment, and relates to the technical field of oil and gas exploration and development, wherein the method comprises the following steps: drawing a logging curve based on pre-acquired logging data of a target well; drawing a parameter value line segment based on the logging curve, wherein the parameter value line segment is used for reflecting the stratum characteristics of the target well; editing a preset stratum characteristic parameter based on the parameter value line segment to obtain an edited stratum characteristic parameter; and processing the edited formation characteristic parameters by adopting a pre-established processing model to obtain a processing result for evaluating and explaining the formation. The technical scheme provided by the invention can simply and conveniently process the logging data, thereby greatly improving the working efficiency of evaluating and explaining the stratum.
Description
Technical Field
The invention relates to the technical field of oil and gas exploration and development, in particular to a stratum evaluation interpretation method, a stratum evaluation interpretation device, a storage medium and electronic equipment.
Background
The well logging information is processed to evaluate and explain the stratum, for example, the stratum is accurately divided, and parameters such as the shale content, the porosity, the permeability, the saturation and the like of the stratum are obtained, so that the method is one of main tasks of well logging interpreters.
The traditional well logging data processing mainly adopts a parameter card or a visual parameter editing page to realize the processing and interpretation of well logging data. Both the two modes are complicated, a large amount of parameter information needs to be input, the splitting operation of the processing well section is inconvenient, the interpretation work is complicated, the splitting, merging and other operations of the processing well section are often involved, in addition, when the processing well section and the processing parameters are more, the searching of the parameters is inconvenient, and therefore the processing of the logging data and the evaluation and interpretation efficiency of the related stratum are low.
Disclosure of Invention
In view of the problems in the prior art, the application provides a stratum evaluation interpretation method, a stratum evaluation interpretation device, a storage medium and electronic equipment, which can simply and conveniently process logging data, so that the working efficiency of evaluating and interpreting the stratum is greatly improved.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a formation evaluation interpretation method, where the method includes:
drawing a logging curve based on pre-acquired logging data of a target well;
drawing a parameter value line segment based on the logging curve, wherein the parameter value line segment is used for reflecting the stratum characteristics of the target well;
editing a preset stratum characteristic parameter based on the parameter value line segment to obtain an edited stratum characteristic parameter;
and processing the edited formation characteristic parameters by adopting a pre-established processing model to obtain a processing result for evaluating and explaining the formation.
Further, the preset stratum characteristic parameters are stored and displayed in a parameter card form; the method further comprises the following steps:
modifying the preset stratum characteristic parameters in the parameter card to obtain a modified parameter card;
and updating the parameter value line segment based on the modified parameter card.
Preferably, the updating the parameter value line segment based on the modified parameter card includes:
based on the modified parameter card, moving the parameter value line segment to change the coordinate position of the endpoint of the parameter value line segment.
Preferably, the preset formation property parameters include: the initial depth of well sections divided by the target well and the evaluation calculation parameters corresponding to each well section; the preset formation characteristic parameters are displayed in the form of a parameter card, and the preset formation characteristic parameters comprise:
and in the parameter card, grouping the evaluation calculation parameters corresponding to each well section according to categories, and identifying the evaluation calculation parameters of different categories by adopting different colors.
Further, the preset formation property parameters are displayed in the form of a parameter card, and the method further comprises the following steps:
in the parameter card, for the same evaluation calculation parameters corresponding to different well sections, when the values are the same, the repeated display is not performed.
Preferably, the editing a preset formation characteristic parameter based on the parameter value line segment to obtain an edited formation characteristic parameter includes:
when a first preset operation on the parameter value line segment is received, adding one well segment;
changing the starting depth of the well section when a second preset operation on the parameter value line section is received;
and when a third preset operation on the parameter value line segment is received, changing the evaluation calculation parameter corresponding to the well segment.
Further, there are a plurality of the pre-established treatment models; the method further comprises the following steps:
selecting one processing model from the pre-established processing models based on the actual stratum condition of the target well to obtain a selection model;
and processing the edited stratum characteristic parameters by adopting the selection model to obtain a processing result for evaluating and explaining the stratum.
Preferably, the well log comprises at least one of: a natural gamma curve, a natural potential curve, a well diameter curve, a deep lateral resistivity curve, a shallow lateral resistivity curve, a microsphere focused resistivity curve, an acoustic curve, a neutron curve, a density curve.
Preferably, the processing result for evaluation interpretation of the formation comprises at least one of: shale content of the formation, lithology profile of the formation, porosity of the formation, permeability of the formation, water saturation of the formation.
In a second aspect, an embodiment of the present invention provides a formation evaluation interpretation apparatus, including:
the well logging curve drawing unit is used for drawing a well logging curve based on the well logging data of a target well acquired in advance;
the parameter value line segment drawing unit is used for drawing a parameter value line segment based on the logging curve, and the parameter value line segment is used for reflecting the stratum characteristics of the target well;
the editing unit is used for editing the preset stratum characteristic parameters based on the parameter value line segments to obtain the edited stratum characteristic parameters;
and the processing unit is used for processing the edited formation characteristic parameters by adopting a pre-established processing model to obtain a processing result for evaluating and explaining the formation.
In a third aspect, an embodiment of the present invention provides a storage medium, where a program code is stored, and when the program code is executed by a processor, the formation evaluation interpretation method according to any one of the above embodiments is implemented.
In a fourth aspect, an embodiment of the present invention provides an electronic device, which includes a memory and a processor, where the memory stores program codes executable on the processor, and when the program codes are executed by the processor, the electronic device implements the formation evaluation interpretation method according to any one of the above embodiments.
According to the stratum evaluation and interpretation method, the stratum evaluation and interpretation device, the storage medium and the electronic equipment, after the logging curve is drawn through the logging data, the parameter value line segment capable of reflecting the stratum characteristic of the target well is drawn based on the logging curve, the preset stratum characteristic parameters can be edited based on the drawn parameter value line segment, and then the model processing result is generated according to the edited stratum characteristic parameters so as to evaluate and interpret the stratum. Because the formation characteristic parameters can be edited based on the visualized parameter value line segments, the problems of inconvenient operation and complex operation caused by manual parameter searching and manual parameter modification are avoided. In addition, based on the modification of the stratum characteristic parameters in the parameter card, the parameter value line segments can be updated in real time, namely, the visual interactive operation between the parameter value line segments and the parameter card can be realized, so that the logging data can be processed more simply and conveniently, and the working efficiency of evaluating and explaining the stratum is greatly improved.
Drawings
The scope of the present disclosure will be better understood from the following detailed description of exemplary embodiments, which is to be read in connection with the accompanying drawings. Wherein the included drawings are:
FIG. 1 is a flow chart of a method of an embodiment of the present invention;
FIG. 2 is a log plot of a target well from log data in an embodiment of the present invention;
FIG. 3 is a diagram illustrating a parameter card display and editing area according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating interactive editing between a parameter value line segment and a parameter card according to an embodiment of the present invention;
FIG. 5 is a first block diagram of an apparatus according to an embodiment of the present invention;
FIG. 6 is a second block diagram of an apparatus according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will describe in detail an implementation method of the present invention with reference to the accompanying drawings and embodiments, so that how to apply technical means to solve the technical problems and achieve the technical effects can be fully understood and implemented.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein and, therefore, the scope of the present invention is not limited by the specific embodiments disclosed below.
Example one
According to the embodiment of the invention, a stratum evaluation interpretation method is provided and is realized through a logging software platform. The method provided by the embodiment not only reserves the traditional parameter card mode for rapid transmission of parameters for the personnel evaluating and explaining the stratum, but also can flexibly edit the parameters for processing and explaining through the visual drawing page, and can obviously improve the working efficiency of the interpreters.
As shown in fig. 1, the method of this embodiment includes:
step S101, drawing a logging curve based on logging data of a target well acquired in advance;
in this embodiment, the target well is a well to which the well logging data to be interpreted and processed belongs; and drawing a logging curve based on the logging data, namely, visually displaying the logging data on a screen in a curve form according to the depth of the target well.
In this embodiment, the well log comprises at least one of: a natural gamma curve, a natural potential curve, a well diameter curve, a deep lateral resistivity curve, a shallow lateral resistivity curve, a microsphere focusing resistivity curve, an acoustic time difference curve, a neutron curve, a compensation density curve. FIG. 2 is a log plot of a target well from log data in an embodiment of the present invention.
Step S102, drawing a parameter value line segment based on the logging curve, wherein the parameter value line segment is used for reflecting the stratum characteristics of the target well;
specifically, a parameter value line segment corresponding to each logging curve can be drawn, the abscissa value corresponding to the parameter value line segment is the parameter value of the curve, and the ordinate depths corresponding to the top end point and the bottom end point of the line segment are the top depth and the bottom depth of the processing well segment.
Two parallel broken lines with a plurality of end points, which are shown by the lithology curves in fig. 4, are the segments of the parameter values drawn based on a certain well logging curve. The target well is divided into a plurality of well sections by the aid of the end points, and the longitudinal coordinate value of each end point is the corresponding well depth.
Step S103, editing a preset stratum characteristic parameter based on the parameter value line segment to obtain an edited stratum characteristic parameter;
in this embodiment, the preset formation characteristic parameters are stored and displayed in the form of a parameter card, as shown in fig. 3, where the preset formation characteristic parameters include: the initial depth of the well sections divided by the target well and the evaluation calculation parameters corresponding to each well section. Wherein, the evaluation calculation parameters corresponding to each well section comprise: and the shale content calculation parameters, the physical property calculation parameters, the fluid calculation parameters and the like are used as input parameters of a subsequent processing model. And obtaining the number of the well sections divided by the target well based on the initial depth of the well sections divided by the target well, wherein the corresponding parameters of each well section are sequentially displayed from top to bottom according to the depth of the well sections.
Some of the evaluation calculation parameters are visually displayed in a logging curve mode and further in a parameter value line section mode, so that certain related stratum characteristic parameters can be visually and intuitively edited and modified by operating the parameter value line section without manually searching related parameters in a parameter card, the portability of operation is greatly improved, and the working efficiency of logging data processing is improved.
In this embodiment, the preset formation characteristic parameters are displayed in the form of a parameter card, which includes: and in the parameter card, grouping the evaluation calculation parameters corresponding to each well section according to categories, and identifying the evaluation calculation parameters of different categories by adopting different colors.
Further, the preset formation property parameters are displayed in the form of a parameter card, and the method further comprises the following steps: in the parameter card, for the same evaluation calculation parameters corresponding to different well sections, when the values are the same, the repeated display is not performed.
Specifically, the number of well sections, the top depth and the bottom depth of each well section and the evaluation calculation parameters corresponding to each well section are preset in a parameter card, the set parameters are displayed in groups according to categories, and each group of parameters are displayed in different colors. In addition, the same parameters with the same values of the parameters of the upper well section and the lower well section are not repeatedly displayed, so that the display layout of the parameter card is simpler and the user can conveniently search the parameters.
In addition, the parameter card in this embodiment also provides the following functions: allowing the user to set whether the parameter value is displayed on the parameter card if the parameter value is the default value. That is, when a parameter takes a default value, the user can choose not to display the parameter, so as to further simplify the display layout and facilitate the user operation.
In this embodiment, the editing a preset formation characteristic parameter based on the parameter value line segment to obtain an edited formation characteristic parameter includes:
when a first preset operation on the parameter value line segment is received, adding one well segment;
changing the starting depth of the well section when a second preset operation on the parameter value line section is received;
and when a third preset operation on the parameter value line segment is received, changing the evaluation calculation parameter corresponding to the well segment.
Specifically, for the user/operator, a first preset operation is performed on the parameter value line segment, including: double-click at a non-breakpoint position of a certain line segment, namely dividing the well segment corresponding to the line segment into two sections, setting the original well segment to be a-b meters, and double-click at the c depth position of a line segment ab, dividing the well segment into a well segment 1: a-c meters and well section 2: b-c meters, namely in the embodiment, the original well section can be divided into two by double-clicking at the non-breakpoint position of the line section, and one well section is added.
It should be noted that the double-click operation is only one preferred operation manner, and other operation manners may be set according to actual needs, which is not specifically limited in this embodiment.
For the user/operator, performing a second preset operation on the parameter value line segment, including: and moving the upper end point and the lower end point of a certain line segment, namely changing the top depth and the bottom depth of the well segment. That is, in this embodiment, the starting depth of the well section corresponding to the line segment can be intuitively changed by moving the end point of the line segment, thereby avoiding tedious manual searching and modifying work in the parameter card.
For the user/operator, performing a third preset operation on the parameter value segment, including: and moving the line segment transversely, and changing the value of the evaluation calculation parameter of the well section corresponding to the line segment. Because the abscissa value corresponding to the parameter value segment is the parameter value of a certain logging curve, and the parameter value of the certain logging curve exists in the form of formation characteristic parameters in the parameter card, the evaluation calculation parameters corresponding to the certain well segment can be intuitively changed by transversely moving the segment, and complicated manual searching and modifying work in the parameter card is avoided.
The operation of the longitudinal moving line segment or the transverse moving line segment may be specifically moved by a mouse, or a moving key on a keyboard, or other feasible moving manners, which is not limited in this embodiment.
Through the operation, the parameter value line segment can be directly and visually operated to conveniently adjust the formation characteristic parameters and update the parameter card in real time. For example, the top depth and the bottom depth of the corresponding well section are visually changed on the parameter value line segment of the logging curve, so that the well section numerical value of the corresponding parameter card is also changed in real time; if a certain point on the parameter value line segment is double-clicked to divide the processing well section into two or more well sections, the original processing well section is changed into two or more well sections on the parameter card, and the same parameters with equal upper and lower processing well section parameter assignment are not repeatedly displayed.
The above describes the process of editing the preset formation property parameters in the parameter card by the parameter value line segments. In this embodiment, because the parameters related to the logging data in the parameter card are displayed in real time in a logging curve manner, in order to further improve the convenience of operation, the parameter value line segment may also be updated in real time by modifying the parameter card, that is, the method described in this embodiment further includes:
modifying the preset stratum characteristic parameters in the parameter card to obtain a modified parameter card; and updating the parameter value line segment based on the modified parameter card.
Wherein the updating the parameter value line segment based on the modified parameter card comprises: based on the modified parameter card, moving the parameter value line segment to change the coordinate position of the endpoint of the parameter value line segment.
Specifically, the top depth value and the bottom depth value of a certain well section in the parameter card are modified, and then the upper end point and the lower end point of a parameter value line section on the logging curve corresponding to the well section can move to corresponding depth positions; and modifying the numerical value (expressed as a formation characteristic parameter) of one or more logging data parameters of a certain well section in the parameter card, and transversely moving a parameter value line segment corresponding to the well section to a corresponding position, wherein the abscissa corresponding to the position is the numerical value set by the parameter card.
And editing the formation characteristic parameters in the parameter card by adjusting the parameter value line segments, and adjusting the corresponding parameter value line segments by modifying the formation characteristic parameters in the parameter card, wherein the finally edited formation characteristic parameters can be obtained by adopting the two interactive editing and modifying modes and serve as input parameters of a subsequent processing model.
And step S104, processing the edited stratum characteristic parameters by adopting a pre-established processing model to obtain a processing result for evaluating and explaining the stratum.
In this embodiment, the processing model may be a pre-programmed processing program, and the processing program may be a mature interpretation processing program in the industry, or an interpretation processing program created by a user according to a requirement.
In this embodiment, if there are a plurality of pre-established processing models, the method of this embodiment further includes: selecting one processing model from the pre-established processing models based on the actual stratum condition of the target well to obtain a selection model; and processing the edited stratum characteristic parameters by adopting the selection model to obtain a processing result for evaluating and explaining the stratum.
Specifically, an appropriate processing model/processing program is selected according to the actual formation condition of the target well, and since the target well in this embodiment is a igneous rock Reservoir, the selected processing model/processing program is a commonly used Complex lithology Analysis (CRA) program.
And (4) operating the selected processing program by taking the edited formation characteristic parameters obtained in the step (S103) as input control parameters, specifically, operating the processing program according to the finally set well sections in the parameter card and the evaluation calculation parameters corresponding to each well section, and obtaining the processing result output by the processing program in real time, wherein the processing result is used for specifically evaluating and explaining the formation.
In this embodiment, the processing result for evaluating and interpreting the formation includes at least one of the following items: shale content of the formation, lithology profile of the formation, porosity of the formation, permeability of the formation, water saturation of the formation.
According to the stratum evaluation and interpretation method provided by the embodiment of the invention, after the logging curve is drawn through the logging data, the parameter value line segment capable of reflecting the stratum characteristic of the target well is drawn based on the logging curve, the preset stratum characteristic parameter can be edited based on the drawn parameter value line segment, and then the model processing result is generated according to the edited stratum characteristic parameter so as to evaluate and interpret the stratum. Because the formation characteristic parameters can be edited based on the visualized parameter value line segments, the problems of inconvenient operation and complex operation caused by manual parameter searching and manual parameter modification are avoided. In addition, based on the modification of the stratum characteristic parameters in the parameter card, the parameter value line segments can be updated in real time, namely, the visual interactive operation between the parameter value line segments and the parameter card can be realized, so that the logging data can be processed more simply and conveniently, and the working efficiency of evaluating and explaining the stratum is greatly improved.
Example two
In this embodiment, a process and a method for formation evaluation and interpretation are described in detail by taking an actual specific operation process of a user/worker as an example, and the method includes:
step S201, obtaining logging data of a target well;
in this embodiment, the target well is a well to which the well logging data required to be interpreted and processed belongs.
Step S202, drawing a logging curve based on the obtained logging data;
in this embodiment, a logging curve is drawn based on the obtained logging data, that is, the logging data of the target well is visually displayed on the screen of the electronic terminal through a computer technology.
A log is plotted based on the log data of the target well as shown in fig. 2. In fig. 2, the well log specifically includes: a GR natural gamma curve, a SP natural potential curve, a CAL well diameter curve, an RD deep lateral resistivity curve, an RS shallow lateral resistivity curve, an RMSL microsphere focusing resistivity curve, a CNL neutron curve, an AC acoustic time difference curve and a DEN compensation density curve. Wherein, the GR natural gamma curve, the SP natural potential curve and the CAL well diameter curve belong to lithological curves and are respectively drawn by different colors; the RD deep lateral resistivity curve, the RS shallow lateral resistivity curve and the RMSL microsphere focusing resistivity curve belong to resistivity curves and are respectively drawn by different colors; the CNL neutron curve, the AC sound wave time difference curve and the DEN compensation density curve belong to three-porosity curves and are respectively drawn by different colors.
Fig. 2 specifically shows the well logs when the depth of the target well is 423 m-452 m, the ordinate of a certain point on a certain well log represents the depth of the target well corresponding to the point, and the value of the abscissa represents the specific value of the parameter expressed by the curve.
Step S203, selecting a pre-established processing model;
in this embodiment, the processing model may be a pre-programmed processing program, and the processing program may be a mature interpretation processing program in the industry, or an interpretation processing program created by a user according to a requirement.
Specifically, an appropriate processing model/processing program is selected according to the actual formation condition of the target well, and since the target well in this embodiment is a igneous rock Reservoir, the selected processing model/processing program is a commonly used Complex lithology Analysis (CRA) program.
Step S204, opening a parameter card page, and preliminarily setting stratum characteristic parameters;
in this embodiment, the formation property parameters are displayed in the form of a parameter card, and include: and in the parameter card, grouping the evaluation calculation parameters corresponding to each well section according to categories, and identifying the evaluation calculation parameters of different categories by adopting different colors.
Further, in the parameter card, for the same evaluation calculation parameter corresponding to different well sections, when the values are the same, the same evaluation calculation parameter is not repeatedly displayed.
As shown in fig. 3 and 4, in actual operation, after the parameter card page is opened, the processing parameters corresponding to each well section are given according to the whole well section or the target well is simply divided into several sections, and the processing parameters are the formation characteristic parameters. Taking a target well as a igneous rock reservoir as an example, as the stratum of the target well from top to bottom is relatively consistent, a set of relatively reasonable parameters is uniformly set in the whole well section (156 m-763 m). In the parameter card, the depth of the well section is displayed in black, the shale content calculation parameter is displayed in red, the physical property calculation parameter is displayed in green, and the fluid calculation parameter is displayed in black, so as to clearly distinguish different parameter types.
Step S205, drawing a parameter value line segment based on the logging curve, wherein the parameter value line segment is used for reflecting the stratum characteristics of the target well;
specifically, a parameter value line segment corresponding to each logging curve can be drawn, the abscissa value corresponding to the parameter value line segment is the parameter value of the curve, and the ordinate depths corresponding to the top end point and the bottom end point of the line segment are the top depth and the bottom depth of the processing well segment.
In actual operation, a certain logging curve is selected in fig. 2, a right mouse button is adopted to start a parameter visualization processing function, two parallel line segments appear at the depth of the whole well section on the track where the curve is located, as shown in fig. 4, the vertical coordinates corresponding to the upper end point and the lower end point of the line segment respectively correspond to the top depth and the bottom depth of the processing well section, namely the corresponding depth of the upper end point of the line segment is 156m, the corresponding depth of the lower end point of the line segment is 763m, the horizontal coordinate corresponding to the curve formed by the left red parameter value line segments is the minimum value of the parameter represented by the curve, and the horizontal coordinate corresponding to the curve formed by the right blue parameter value line segments is the maximum value of the parameter represented by the curve.
For example, in fig. 4, if the SP natural potential curve is selected, and after the parameter visualization processing function is started by the right mouse button, the abscissa corresponding to the curve composed of the left red parameter value segments is the minimum value of the natural potential, and the abscissa corresponding to the curve composed of the right blue parameter value segments is the maximum value of the natural potential.
Step S206, editing the preset stratum characteristic parameters based on the parameter value line segments to obtain edited stratum characteristic parameters;
in this embodiment, the preset formation characteristic parameters are stored and displayed in a form of a parameter card, where the preset formation characteristic parameters include: the initial depth of the well sections divided by the target well and the evaluation calculation parameters corresponding to each well section. The evaluation calculation parameters corresponding to each well section comprise: and the shale content calculation parameters, the physical property calculation parameters, the fluid calculation parameters and the like are used as input parameters of a subsequent processing model.
Some of the evaluation calculation parameters are visually displayed in a logging curve mode and further in a parameter value line segment mode, so that certain related stratum characteristic parameters can be visually and intuitively edited and modified by operating the parameter value line segment without manually searching related parameters in a parameter card, the portability of operation is greatly improved, and the working efficiency of logging data processing is improved.
In this embodiment, the editing a preset formation characteristic parameter based on the parameter value line segment to obtain an edited formation characteristic parameter includes:
when a first preset operation on the parameter value line segment is received, adding one well segment;
changing the starting depth of the well section when a second preset operation on the parameter value line section is received;
and when a third preset operation on the parameter value line segment is received, changing the evaluation calculation parameter corresponding to the well segment.
Specifically, for the user/operator, a first preset operation is performed on the parameter value line segment, including: double-click at a non-breakpoint part of a certain line segment, namely dividing the well segment corresponding to the line segment into two segments, setting the original well segment to be a-b meters, and double-click at the c depth of a line segment ab, dividing the well segment into well segments 1: a-c meters and a well section 2: b-c meters, namely in the embodiment, the original well section can be divided into two by double-clicking at the non-breakpoint of the line section, and one well section is added.
For the user/operator, performing a second preset operation on the parameter value line segment, including: and moving the upper end point and the lower end point of a certain line segment, namely changing the top depth and the bottom depth of the well segment. That is, in this embodiment, the starting depth of the well section corresponding to the line segment can be intuitively changed by moving the end point of the line segment, thereby avoiding tedious manual searching and modifying work in the parameter card.
For the user/operator, performing a third preset operation on the parameter value line segment, including: and moving the line segment transversely, and changing the value of the evaluation calculation parameter of the well section corresponding to the line segment. Because the abscissa value corresponding to the parameter value segment is the parameter value of a certain logging curve, and the parameter value of the certain logging curve exists in the form of formation characteristic parameters in the parameter card, the evaluation calculation parameters corresponding to the certain well segment can be intuitively changed by transversely moving the segment, and complicated manual searching and modifying work in the parameter card is avoided.
In actual operation, the well section can be conveniently subdivided and processed and relevant parameters can be adjusted by utilizing the parameter visualization processing function, namely, if a certain point on any line segment is double-clicked, a circular end point can be simultaneously generated on two parallel line segments shown in fig. 4, and the well section corresponding to the line segment is divided into an upper section and a lower section.
For example, in this embodiment, a double click is first performed on a parameter value line segment of an SP natural potential curve (mudstone natural potential curve) corresponding to a position with the ordinate of 337m, so that the corresponding well section is quickly divided into two sections of 156m to 337m and 337m to 763m, and the parameter card displays the two divided well sections in real time. If the value of a certain same parameter of the two divided well sections is the same, the parameter corresponding to the well section positioned at the lower part is not displayed. Then, two line segments of the upper processing well section (156 m-337 m) of the SP natural potential curve are dragged left and right, the minimum value and the maximum value of the SP natural potential of the well section are set to be 47mv and 89mv respectively, two line segments of the lower processing well section (337 m-763 m) are dragged, the minimum value and the maximum value of the SP natural potential of the well section are set to be 52mv and 82mv respectively, and the corresponding parameter card can modify corresponding parameters in real time.
According to the steps, processing well sections are continuously added, a parameter visualization processing function is started at different well logging curves, corresponding parameters are adjusted, meanwhile, parameter cards are directly modified, a parameter visualization processing page can be correspondingly updated in real time, through the interactive processing mode, in the embodiment, a target well is subdivided into 70 processing well sections from top to bottom, parameters corresponding to each well section are edited and adjusted, edited stratum characteristic parameters are obtained, and refined explanation processing of data of the whole well section is completed subsequently.
And step S207, processing the edited stratum characteristic parameters by adopting the selected processing model to obtain a processing result for evaluating and explaining the stratum.
And taking the edited formation characteristic parameters obtained in the step as input control parameters to operate the selected processing program, specifically, clicking a 'processing' case at the lower part of the parameter card according to the finally set well sections in the parameter card and the evaluation calculation parameters corresponding to each well section, and operating the processing program to obtain a processing result output by the processing program in real time, wherein the processing result is used for specifically evaluating and explaining the formation.
In this embodiment, the processing result for evaluating and interpreting the formation includes at least one of the following items: shale content of the formation, lithology profile of the formation, porosity of the formation, permeability of the formation, water saturation of the formation.
Fig. 4 shows a simple schematic of the processing results obtained after the processing program has been run. Wherein, the water saturation of the stratum and the permeability of the stratum are used for evaluating and explaining the oil and gas characteristics of the stratum; the shale content of the formation, the lithology profile of the formation, and the porosity of the formation are used to make evaluation interpretations on the lithology characteristics of the formation.
According to the stratum evaluation interpretation method provided by the embodiment of the invention, after the logging curve is drawn through the logging data, the parameter value line segment capable of reflecting the stratum characteristic of the target well is drawn based on the logging curve, the preset stratum characteristic parameter can be edited based on the drawn parameter value line segment, and then the model processing result is generated according to the edited stratum characteristic parameter so as to evaluate and interpret the stratum. Because the formation characteristic parameters can be edited based on the visualized parameter value line segments, the problems of inconvenient operation and complex operation caused by manual parameter searching and manual parameter modification are avoided. In addition, based on the modification of the stratum characteristic parameters in the parameter card, the parameter value line segments can be updated in real time, namely, the visual interactive operation between the parameter value line segments and the parameter card can be realized, so that the logging data can be processed more simply and conveniently, and the working efficiency of evaluating and explaining the stratum is greatly improved.
EXAMPLE III
Correspondingly to the above method embodiment, the present invention also provides a formation evaluation interpretation apparatus, as shown in fig. 5, the apparatus comprising:
a logging curve drawing unit 301, configured to draw a logging curve based on pre-acquired logging data of a target well;
in this embodiment, the well log comprises at least one of: a natural gamma curve, a natural potential curve, a well diameter curve, a deep lateral resistivity curve, a shallow lateral resistivity curve, a microsphere focusing resistivity curve, an acoustic time difference curve, a neutron curve, a compensation density curve.
A parameter line segment drawing unit 302, configured to draw a parameter line segment based on the well logging curve, where the parameter line segment is used to reflect the formation characteristics of the target well;
specifically, a parameter value line segment corresponding to each logging curve can be drawn, the abscissa value corresponding to the parameter value line segment is the parameter value of the curve, and the ordinate depths corresponding to the top end point and the bottom end point of the line segment are the top depth and the bottom depth of the processing well segment.
The editing unit 303 is configured to edit a preset formation characteristic parameter based on the parameter value line segment, and obtain an edited formation characteristic parameter;
in this embodiment, the preset formation characteristic parameters are stored and displayed in the form of a parameter card, as shown in fig. 3, where the preset formation characteristic parameters include: the initial depth of the well sections divided by the target well and the evaluation calculation parameters corresponding to each well section. Wherein, the evaluation calculation parameters corresponding to each well section comprise: and the calculated parameters of the shale content, the physical property, the fluid and the like are used as input parameters of a subsequent processing model. And obtaining the number of the well sections divided by the target well based on the initial depth of the well sections divided by the target well, wherein the corresponding parameters of each well section are sequentially displayed from top to bottom according to the depth of the well sections.
In this embodiment, the editing a preset formation characteristic parameter based on the parameter value line segment to obtain an edited formation characteristic parameter includes:
when a first preset operation on the parameter value line segment is received, adding one well segment;
changing the starting depth of the well section when a second preset operation on the parameter value line section is received;
and when a third preset operation on the parameter value line segment is received, changing the evaluation calculation parameter corresponding to the well segment.
Specifically, for the user/operator, a first preset operation is performed on the parameter value line segment, including: double-click at a non-breakpoint part of a certain line segment, namely dividing the well segment corresponding to the line segment into two segments, setting the original well segment to be a-b meters, and double-click at the c depth of a line segment ab, dividing the well segment into well segments 1: a-c meters and well section 2: b-c meters, namely in the embodiment, the original well section can be divided into two by double-clicking at the non-breakpoint position of the line section, and one well section is added.
For the user/operator, performing a second preset operation on the parameter value line segment, including: and moving the upper end point and the lower end point of a certain line segment, namely changing the top depth and the bottom depth of the well segment. That is, in this embodiment, the starting depth of the well section corresponding to the line segment can be intuitively changed by moving the end point of the line segment, thereby avoiding tedious manual searching and modifying work in the parameter card.
For the user/operator, performing a third preset operation on the parameter value segment, including: and moving the line segment transversely, and changing the value of the evaluation calculation parameter of the well section corresponding to the line segment. Because the abscissa value corresponding to the parameter value segment is the parameter value of a certain logging curve, and the parameter value of the certain logging curve exists in the form of formation characteristic parameters in the parameter card, the evaluation calculation parameters corresponding to the certain well segment can be intuitively changed by transversely moving the segment, and complicated manual searching and modifying work in the parameter card is avoided.
And the processing unit 304 is configured to process the edited formation characteristic parameters by using a pre-established processing model, and obtain a processing result for evaluating and interpreting the formation.
In this embodiment, the processing model may be a pre-programmed processing program, and the processing program may be a mature interpretation processing program in the industry, or an interpretation processing program created by a user according to a requirement.
The selected processing program is operated by using the edited formation characteristic parameters obtained by the editing unit 303 as input control parameters, specifically, the processing program is operated according to the finally set well sections in the parameter card and the evaluation calculation parameters corresponding to each well section, and the processing result output by the processing program in real time is obtained and used for specifically evaluating and interpreting the formation.
In this embodiment, the processing result for evaluating and interpreting the formation includes at least one of the following items: shale content of the formation, lithologic profile of the formation, porosity of the formation, permeability of the formation, water saturation of the formation.
In this embodiment, when there are a plurality of pre-established processing models, as shown in fig. 6, the apparatus further includes:
a selecting unit 305, configured to select one processing model from the pre-established processing models based on an actual formation condition of the target well, and obtain a selected model;
specifically, an appropriate processing model/processing program is selected according to the actual formation condition of the target well, and since the target well in this embodiment is a igneous rock Reservoir, the selected processing model/processing program is a commonly used Complex lithology Analysis (CRA) program.
The processing unit 304 is further configured to process the edited formation characteristic parameters by using the selection model, so as to obtain a processing result for evaluating and interpreting the formation.
Further, as shown in fig. 6, the apparatus according to this embodiment further includes:
a modifying unit 306, configured to modify the preset formation property parameter in the parameter card, so as to obtain a modified parameter card;
the parameter value line segment drawing unit 302 is further configured to update the parameter value line segment based on the modified parameter card.
Wherein the updating the parameter value line segment based on the modified parameter card comprises: based on the modified parameter card, moving the parameter value line segment to change the coordinate position of the endpoint of the parameter value line segment.
The working principle, the work flow and other contents of the device related to the specific embodiment can be referred to the specific embodiment of the formation evaluation and explanation method provided by the invention, and the same technical contents are not described in detail herein.
According to the stratum evaluation and interpretation device provided by the embodiment of the invention, after the logging curve is drawn through the logging data, the parameter value line segment capable of reflecting the stratum characteristic of the target well is drawn based on the logging curve, the preset stratum characteristic parameter can be edited based on the drawn parameter value line segment, and then the model processing result is generated according to the edited stratum characteristic parameter so as to evaluate and interpret the stratum. Because the formation characteristic parameters can be edited based on the visualized parameter value line segments, the problems of inconvenient operation and complex operation caused by manual parameter searching and manual parameter modification are avoided. In addition, based on the modification of the stratum characteristic parameters in the parameter card, the parameter value line segments can be updated in real time, namely, the visual interactive operation between the parameter value line segments and the parameter card can be realized, so that the logging data can be processed more simply and conveniently, and the working efficiency of evaluating and explaining the stratum is greatly improved.
Example four
There is also provided, in accordance with an embodiment of the present invention, a storage medium having program code stored thereon, which when executed by a processor, implements a formation evaluation interpretation method as described in any one of the above embodiments.
The method specifically comprises the following steps:
drawing a logging curve based on pre-acquired logging data of a target well;
drawing a parameter value line segment based on the logging curve, wherein the parameter value line segment is used for reflecting the stratum characteristics of the target well;
editing the preset stratum characteristic parameters based on the parameter value line segments to obtain edited stratum characteristic parameters;
and processing the edited formation characteristic parameters by adopting a pre-established processing model to obtain a processing result for evaluating and explaining the formation.
Further, the preset stratum characteristic parameters are stored and displayed in a parameter card form; the method further comprises the following steps:
modifying the preset stratum characteristic parameters in the parameter card to obtain a modified parameter card;
and updating the parameter value line segment based on the modified parameter card.
Specifically, the updating the parameter value line segment based on the modified parameter card includes:
based on the modified parameter card, moving the parameter value line segment to change the coordinate position of the endpoint of the parameter value line segment.
Specifically, the preset formation property parameters include: the initial depth of well sections divided by the target well and the evaluation calculation parameters corresponding to each well section; the preset formation characteristic parameters are displayed in the form of a parameter card, and the preset formation characteristic parameters comprise:
and in the parameter card, grouping the evaluation calculation parameters corresponding to each well section according to categories, and identifying the evaluation calculation parameters of different categories by adopting different colors.
Further, the preset formation property parameters are displayed in the form of a parameter card, and the method further comprises the following steps:
in the parameter card, for the same evaluation calculation parameters corresponding to different well sections, when the values are the same, the repeated display is not performed.
Specifically, the editing a preset formation characteristic parameter based on the parameter value line segment to obtain an edited formation characteristic parameter includes:
when a first preset operation on the parameter value line segment is received, adding one well segment;
changing the starting depth of the well section when a second preset operation on the parameter value line section is received;
and when a third preset operation on the parameter value line segment is received, changing the evaluation calculation parameter corresponding to the well segment.
Further, there are a plurality of the pre-established treatment models; the method further comprises the following steps:
selecting one processing model from the pre-established processing models based on the actual stratum condition of the target well to obtain a selection model;
and processing the edited stratum characteristic parameters by adopting the selection model to obtain a processing result for evaluating and explaining the stratum.
In particular, the well log comprises at least one of: a natural gamma curve, a natural potential curve, a well diameter curve, a deep lateral resistivity curve, a shallow lateral resistivity curve, a microsphere focused resistivity curve, an acoustic curve, a neutron curve, a density curve.
Specifically, the processing result for evaluating and interpreting the stratum comprises at least one of the following items: shale content of the formation, lithology profile of the formation, porosity of the formation, permeability of the formation, water saturation of the formation.
The working principle, the work flow and other contents of the method related to the specific implementation can be referred to the specific implementation of the formation evaluation interpretation method provided by the invention, and the same technical contents are not described in detail herein.
EXAMPLE five
There is also provided, according to an embodiment of the present invention, an electronic device including a memory and a processor, the memory storing thereon program code executable on the processor, the program code, when executed by the processor, implementing a formation evaluation interpretation method according to any one of the above-mentioned embodiments.
The method specifically comprises the following steps:
drawing a logging curve based on pre-acquired logging data of a target well;
drawing a parameter value line segment based on the logging curve, wherein the parameter value line segment is used for reflecting the stratum characteristics of the target well;
editing a preset stratum characteristic parameter based on the parameter value line segment to obtain an edited stratum characteristic parameter;
and processing the edited formation characteristic parameters by adopting a pre-established processing model to obtain a processing result for evaluating and explaining the formation.
Further, the preset stratum characteristic parameters are stored and displayed in a parameter card form; the method further comprises the following steps:
modifying the preset stratum characteristic parameters in the parameter card to obtain a modified parameter card;
and updating the parameter value line segment based on the modified parameter card.
Specifically, the updating the parameter value line segment based on the modified parameter card includes:
based on the modified parameter card, moving the parameter value line segment to change the coordinate position of the endpoint of the parameter value line segment.
Specifically, the preset formation property parameters include: the initial depth of well sections divided by the target well and the evaluation calculation parameters corresponding to each well section; the preset formation characteristic parameters are displayed in the form of a parameter card, and the preset formation characteristic parameters comprise:
and in the parameter card, grouping the evaluation calculation parameters corresponding to each well section according to categories, and identifying the evaluation calculation parameters of different categories by adopting different colors.
Further, the preset formation property parameters are displayed in the form of a parameter card, and the method further comprises the following steps:
in the parameter card, for the same evaluation calculation parameters corresponding to different well sections, when the values are the same, the same evaluation calculation parameters are not repeatedly displayed.
Specifically, the editing a preset formation characteristic parameter based on the parameter value line segment to obtain an edited formation characteristic parameter includes:
when a first preset operation on the parameter value line segment is received, adding one well segment;
changing the starting depth of the well section when a second preset operation on the parameter value line section is received;
and when a third preset operation on the parameter value line segment is received, changing the evaluation calculation parameter corresponding to the well segment.
Further, there are a plurality of the pre-established treatment models; the method further comprises the following steps:
selecting one processing model from the pre-established processing models based on the actual stratum condition of the target well to obtain a selection model;
and processing the edited stratum characteristic parameters by adopting the selection model to obtain a processing result for evaluating and explaining the stratum.
In particular, the well log comprises at least one of: a natural gamma curve, a natural potential curve, a well diameter curve, a deep lateral resistivity curve, a shallow lateral resistivity curve, a microsphere focused resistivity curve, an acoustic curve, a neutron curve, a density curve.
Specifically, the processing result for evaluating and interpreting the stratum comprises at least one of the following items: shale content of the formation, lithology profile of the formation, porosity of the formation, permeability of the formation, water saturation of the formation.
The working principle, the work flow and other contents of the method related to the specific implementation can be referred to the specific implementation of the formation evaluation and interpretation method provided by the invention, and the same technical contents are not described in detail here.
According to the stratum evaluation and interpretation method, the stratum evaluation and interpretation device, the storage medium and the electronic equipment, after the logging curve is drawn through the logging data, the parameter value line segment capable of reflecting the stratum characteristic of the target well is drawn based on the logging curve, the preset stratum characteristic parameters can be edited based on the drawn parameter value line segment, and then the model processing result is generated according to the edited stratum characteristic parameters so as to evaluate and interpret the stratum. Because the formation characteristic parameters can be edited based on the visualized parameter value line segments, the problems of inconvenient operation and complex operation caused by manual parameter searching and manual parameter modification are avoided. In addition, based on the modification of the stratum characteristic parameters in the parameter card, the parameter value line segments can be updated in real time, namely, the visual interactive operation between the parameter value line segments and the parameter card can be realized, so that the logging data can be processed more simply and conveniently, and the working efficiency of evaluating and explaining the stratum is greatly improved.
In conclusion, the invention can improve the flexibility and convenience of processing and explaining the logging data and improve the working efficiency of interpreters.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention essentially or partially contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing an electronic device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Although the embodiments of the present invention have been described above, the above description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (12)
1. A formation evaluation interpretation method, the method comprising:
drawing a logging curve based on pre-acquired logging data of a target well;
drawing a parameter value line segment based on the logging curve, wherein the parameter value line segment is used for reflecting the stratum characteristics of the target well;
editing a preset stratum characteristic parameter based on the parameter value line segment to obtain an edited stratum characteristic parameter;
and processing the edited formation characteristic parameters by adopting a pre-established processing model to obtain a processing result for evaluating and explaining the formation.
2. The formation evaluation interpretation method according to claim 1, wherein the preset formation characteristic parameters are stored and displayed in a form of a parameter card; the method further comprises the following steps:
modifying the preset stratum characteristic parameters in the parameter card to obtain a modified parameter card;
and updating the parameter value line segment based on the modified parameter card.
3. The formation evaluation interpretation method according to claim 2, wherein the updating the parameter value line segment based on the modified parameter card comprises:
based on the modified parameter card, moving the parameter value line segment to change the coordinate position of the endpoint of the parameter value line segment.
4. The method of claim 2, wherein the pre-set formation property parameters include: the initial depth of the well sections divided by the target well and the evaluation calculation parameters corresponding to each well section; the preset formation characteristic parameters are displayed in a parameter card form, and the preset formation characteristic parameters comprise:
and in the parameter card, grouping the evaluation calculation parameters corresponding to each well section according to categories, and identifying the evaluation calculation parameters of different categories by adopting different colors.
5. The method of claim 4, wherein the preset formation property parameters are displayed in the form of a parameter card, further comprising:
in the parameter card, for the same evaluation calculation parameters corresponding to different well sections, when the values are the same, the repeated display is not performed.
6. The method for evaluating and interpreting a formation according to claim 4, wherein the editing of the preset formation characteristic parameters based on the parameter value line segments to obtain the edited formation characteristic parameters comprises:
when a first preset operation on the parameter value line segment is received, adding one well segment;
changing the starting depth of the well section when a second preset operation on the parameter value line section is received;
and when a third preset operation on the parameter value line segment is received, changing the evaluation calculation parameter corresponding to the well segment.
7. The formation evaluation interpretation method according to claim 1, wherein there are a plurality of the pre-established treatment models; the method further comprises the following steps:
selecting one processing model from the pre-established processing models based on the actual stratum condition of the target well to obtain a selected model;
and processing the edited stratum characteristic parameters by adopting the selection model to obtain a processing result for evaluating and explaining the stratum.
8. The formation evaluation interpretation method according to claim 1, wherein the well log comprises at least one of: a natural gamma curve, a natural potential curve, a well diameter curve, a deep lateral resistivity curve, a shallow lateral resistivity curve, a microsphere focused resistivity curve, an acoustic curve, a neutron curve, a density curve.
9. The method of claim 1, wherein the processing results for evaluation interpretation of the formation comprise at least one of: shale content of the formation, lithology profile of the formation, porosity of the formation, permeability of the formation, water saturation of the formation.
10. A formation evaluation interpretation apparatus, the apparatus comprising:
the well logging curve drawing unit is used for drawing a well logging curve based on the well logging data of a target well acquired in advance;
the parameter value line segment drawing unit is used for drawing a parameter value line segment based on the logging curve, and the parameter value line segment is used for reflecting the stratum characteristics of the target well;
the editing unit is used for editing the preset stratum characteristic parameters based on the parameter value line segments to obtain the edited stratum characteristic parameters;
and the processing unit is used for processing the edited formation characteristic parameters by adopting a pre-established processing model to obtain a processing result for evaluating and explaining the formation.
11. A storage medium having stored thereon program code, characterized in that the program code, when executed by a processor, implements a formation evaluation interpretation method according to any of claims 1 to 9.
12. An electronic device, comprising a memory having stored thereon program code executable on the processor, the program code, when executed by the processor, implementing a formation evaluation interpretation method according to any one of claims 1 to 9.
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| CN116201535B (en) * | 2023-02-06 | 2024-02-09 | 北京月新时代科技股份有限公司 | Automatic dividing method, device and equipment for oil and gas reservoir target well sign stratum |
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