CN106294525A - A kind of well logging columnar section information extracting method and system - Google Patents
A kind of well logging columnar section information extracting method and system Download PDFInfo
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Abstract
The invention discloses a kind of well logging columnar section information extracting method and system, it includes importing well logging columnar section, and determine the Drawing zone wherein comprising formation information to be extracted and analyze the layer attribute of formation information to be extracted in Drawing zone the legend area comprising legend picture, and determine in legend area the layer attribute represented by legend picture and parameter information thereof, utilize the legend picture in legend area with Drawing zone comparing for recording the symbol picture of formation information corresponding to each strata division, and then determine the layer attribute of each strata division and corresponding formation information thereof, export the respective formation information of each strata division.
Description
Technical field
The present invention relates to data message in petroleum industry and automatically extract technology, particularly relate to a kind of well logging column and cut open
Surface information extracting method and system.
Background technology
Formation lithology, color and the depth data that well logging obtains is a class base important in petroleum geology exploration work
Plinth information.
At present, substantial amounts of domestic and international well logging post has been collected and has been stored in the archives of domestic relevant research unit
Shape sectional data.These well logging columnar section data are often deposited with the picture format of well logging columnar section
Storage, and it is not available for the Document type data that scientific research personnel directly uses.Document type data is that scientific research personnel makes
Make the basis of geological analysis of geology professional software, the block diagram of picture format cannot be as the input of geology software
Data.Even if or there is Document type data, but carrying out the research worker of scientific research project due to some visitor
See reason and do not get or do not reach initial data, and original well logging columnar section data must be extracted corresponding
Document type data.At present, these data extraction procedure above-mentioned are mainly carried out in the way of artificial.Such as,
By related personnel by the typing electrical form seriatim such as the lithology on stratum, color symbol, it is analyzed, stores.
The mode work efficiency of this artificial reading record is on the low side, and it cannot be guaranteed that the precision of data and accuracy.
Summary of the invention
In order to solve above-mentioned technical problem, the invention provides a kind of well logging column that can automatically process in batches and cut open
Surface information extracting method and system.The method and system can improve scientific research personnel obtain relevant information efficiency and
Precision.
A kind of well logging columnar section information extracting method, including:
Steps for importing, imports well logging columnar section, and determines the drawing wherein comprising formation information to be extracted
District and the legend area comprising legend picture；
Analytical procedure, analyzes the layer attribute of formation information to be extracted in Drawing zone, and determines in legend area
Layer attribute represented by legend picture and parameter information thereof；
Identification step, utilize the legend picture in legend area with Drawing zone corresponding to each strata division for remembering
The symbol picture of record formation information is compared, and then determines the layer attribute and accordingly of each strata division
Layer information；
Output step, exports the respective formation information of each strata division.
According to embodiments of the invention, above-mentioned layer attribute at least includes the degree of depth at the bottom of top, stratum, stratum color and ground
One in layer lithology.
According to embodiments of the invention, when the degree of depth at the bottom of layer attribute includes top, stratum, above-mentioned identification step is corresponding
Comprise the following steps:
The scale weighing depth of stratum is set for the columnar section in Drawing zone, and sign column is cutd open on scale
Depth data at the bottom of the actual top of face figure upper and lower side；
Identify the up-and-down boundary representing the symbol picture at the bottom of strata division top in columnar section, and obtain each up and down
The reading of the scale corresponding to border, degree of depth number at the bottom of actual top based on known columnar section upper and lower side
According to, converse depth data at the bottom of the actual top of each strata division.
According to embodiments of the invention, when layer attribute includes stratum color, above-mentioned identification step correspondingly wraps
Include following steps:
The color symbol picture recording each strata division color in columnar section in Drawing zone is arranged and carries out point
Cut；
Code in color legend picture in legend area is split, in Drawing zone, each color symbol figure obtained
Code in sheet is compared, and then determines the concrete color of each strata division.
According to embodiments of the invention, when layer attribute includes formation lithology, above-mentioned identification step correspondingly wraps
Include following steps:
The lithologic symbol picture recording each strata division lithology in columnar section in Drawing zone is split；
Symbol in lithologic map illustration sheet in legend area is split, in Drawing zone, each lithologic symbol figure obtained
Symbol in sheet is compared, and then determines the concrete lithology of each strata division.
Further, in above-mentioned identification step, before comparing, big by the legend picture in legend area
Little it is adjusted in Drawing zone split the size of the symbol picture obtained by scaling.
According to embodiments of the invention, above-mentioned well logging columnar section is to meet the black and white picture that industry specifies.
According to embodiments of the invention, in above-mentioned identification step, when comparing, extract legend picture and symbol
Black picture element content in number picture is compared.
Further, the minimum level square comprising complete black picture element content in legend picture and symbol picture is extracted
Shape picture.
Additionally, the present invention also provides for a kind of well logging columnar section information extracting system, including:
Importing module, it is used for importing well logging columnar section, and determines and wherein comprise formation information to be extracted
Drawing zone and comprise the legend area of legend picture；
Analyzing module, it is for analyzing the layer attribute of formation information to be extracted in Drawing zone, and determines figure
Layer attribute represented by legend picture and parameter information thereof in example district；
Identification module, its utilize corresponding to legend picture in legend area and each strata division in Drawing zone for
The symbol picture of record formation information is compared, and then determines the layer attribute of each strata division and corresponding
Formation information；
Output module, it is used for exporting the respective formation information of each strata division.
Compared with prior art, one or more embodiments of the invention can have the advantage that
1, the present invention can realize information and automatically identifies and extract well logging columnar section, and the knot identified
Fruit accurately and fast, greatly improves scientific research efficiency；
2, the present invention can carry out batch processing to the well logging columnar section of uniform format, in petroleum geology section
Grind in work and be widely used, have broad application prospects；
The important ginsengs such as buried depth at the bottom of 3, the present invention can automatically identify the stratum color of well logging picture, lithology, top
Number, the data of output can directly use text formatting to preserve, and facilitates later stage scientific research personnel directly to use.
Other features and advantages of the present invention will illustrate in the following description, and, partly from description
In become apparent, or by implement the present invention and understand.The purpose of the present invention and other advantages can be passed through
Structure specifically noted in description, claims and accompanying drawing realizes and obtains.
Accompanying drawing explanation
Accompanying drawing is for providing a further understanding of the present invention, and constitutes a part for description, with the present invention
Embodiment be provided commonly for explain the present invention, be not intended that limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of information extracting method according to an embodiment of the invention；
Fig. 2 is the partial schematic view of the well logging columnar section picture imported according to an embodiment of the invention；
Fig. 3 is the local of the well logging columnar section picture central column face profile imported according to an embodiment of the invention
Schematic diagram；
Fig. 4 is the schematic diagram of lithology legend according to an embodiment of the invention；
Fig. 5 is the schematic diagram of color legend according to an embodiment of the invention；
Fig. 6 a is the schematic diagram of the most original columnar section；
Fig. 6 b is the formation information table of the text formatting extracted according to an embodiment of the invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing the present invention made into
One step ground describes in detail.
First embodiment
Fig. 1 is the flow chart of well logging columnar section information extracting method according to an embodiment of the invention.Tie below
Close Fig. 1 this method is illustrated.
Step S110, steps for importing.This step mainly imports a well logging columnar section, and determines and wherein contain
There is the Drawing zone of formation information to be extracted and comprise the legend area of legend picture.
As in figure 2 it is shown, in the present embodiment, the well logging columnar section picture of importing is to meet petroleum industry regulation
Black and white electronic pictures.If picture is colored, then need first to change into black and white picture by graphics software.
The black and white picture that colour picture is changed out must meet condition needed for the present invention.
It can be seen that this figure is mainly made up of three parts:
Map title district, includes the description information such as the map title and drawing；
Drawing zone, after being usually located at map title district, includes column name subregion and columnar section subregion；
Legend area, after being usually located at Drawing zone, includes legend picture.
It is said that in general, the maximum rectangular area being made up of black lines is Drawing zone, its identification is divided into longitudinal direction
The identification of position and the identification of lateral attitude.In other words, three Lycoperdon polymorphum Vitt the longest are the most laterally identified
Straight line has respectively constituted at the bottom of Drawing zone top, column name district and at the bottom of Drawing zone, and longitudinally at the model up and down of Drawing zone
Enclose the vertical border that outermost black vertical line is Drawing zone identified.
Step S120, analytical procedure.This step mainly determines the stratum of formation information to be extracted in Drawing zone
Attribute, and determine in legend area the layer attribute represented by legend picture and parameter information thereof.
It is known that well logging columnar section is used for recording strata division (the most multiple strata division) in Drawing zone
Layer attribute information.Layer attribute can be in the degree of depth at the bottom of formation lithology, stratum color or top, stratum
Plant or several.The most in an embodiment as illustrated in figure 2, columnar section have employed lithologic symbol district
(lithologic symbol picture row) record the concrete lithology of each strata division, and (color accords with to have employed color code row
Number picture row) record the concrete color of each strata division, and carry out each strata division of labelling by ratio scale
Actual top at the bottom of the degree of depth.Therefore, record during the main task of step S210 determines that well logging columnar section
Which layer attribute of strata division, and further determine that the symbol of the data message that have recorded these layer attributes
Number picture (such as lithologic symbol district, color code row and scale) lateral attitude in Drawing zone, in order to later stage
The position segmentation symbol picture at each attribute symbol picture place is accurately arrived at during identification.
Similarly, legend area has the legend picture representing layer attribute, and each legend picture represents one
The concrete data message of individual layer attribute (it is that the formation data to be extracted with Drawing zone is distinguished, legend picture herein
The specifying information represented is referred to as parameter information).Such as, Fig. 4 show strata division lithologic properties one be
Row legend picture.Wherein, the horizontal line symbol in first lithologic map illustration sheet illustrates lithology is mud stone.And scheme
A series of legend pictures of 5 color attributes showing strata division.Wherein, first color rectangle picture
In code 0 illustrate color for white.These legend pictures as the later stage identify comparison time reference.
S130, identification step.This step mainly utilizes the legend picture in legend area to divide on each stratum with Drawing zone
The symbol picture of the record formation information corresponding to Ceng is compared, and then determines the layer attribute of each strata division
And concrete formation information.
Specifically, need to use different methods to be identified according to different layer attributes.
When the degree of depth at the bottom of layer attribute is top, stratum, described identification step correspondingly needs to comprise the following steps:
S131.1 is that the columnar section in Drawing zone arranges the scale weighing depth of stratum, and indicates on scale
Depth data at the bottom of the actual top of columnar section upper and lower side；
S131.2 identifies the up-and-down boundary representing the symbol picture at the bottom of strata division top in columnar section, and obtains
The reading of the scale corresponding to each up-and-down boundary, deep at the bottom of actual top based on known columnar section upper and lower side
Degrees of data, converses depth data at the bottom of the actual top of each strata division.
In the embodiment shown in fig. 3, the scale being used for weighing depth of stratum is arranged on color generation from top to down
Code row the left side, and color code row the right this be lithologic symbol district.Additionally, at the bottom of column name district and drawing
Reading on the scale of bottom, district represents depth data at the bottom of the actual top of block diagram upper and lower side respectively, and these data are permissible
It is manually entered by operator and arranges.In the present embodiment, in lithologic symbol district, one by black lines group
The rectangular area of continuous print up and down become represents a strata division, contains a kind of symbol inside each rectangular area
Number for recording the lithology of this strata division.Such as, the horizontal line symbol in a lithologic map illustration sheet illustrates rock
Property is mud stone.The upper of rectangular area represents at the bottom of the top corresponding to strata division below the most respectively.Therefore, root
Can know at the bottom of the actual top of this strata division deep according to the reading of the most corresponding upper scale of rectangular area
Degrees of data.
When layer attribute is formation lithology, described identification step correspondingly needs to comprise the following steps:
S132.1, enters the lithologic symbol picture recording each strata division lithology in the columnar section in Drawing zone
Row segmentation；
S132.2, splits, in Drawing zone, each lithology obtained by the symbol in the lithologic map illustration sheet in legend area
Symbol in symbol picture is compared, and then determines the concrete lithology of each strata division.
It should be noted that before comparing at this, when necessary will big by the legend picture in legend area
Little it is adjusted in Drawing zone split the size of the symbol picture obtained by scaling.
Such as, in the lithology legend shown in Fig. 4, characterize mud stone legend with characterize siltstone legend and
The size of the legend characterizing gritstone is the most unequal, with some mudstone stratum in the Drawing zone shown in Fig. 2
The size of symbol picture is the most unequal.Generally, in legend area, first legend is that the frequency of occurrences is relatively in Drawing zone
Many (showing to be easily found the stratum of this attribute in Drawing zone).Additionally, characterize mud stone by geology custom
The picture frame of legend picture is the narrowest, and the width of remaining legend picture is increased in this ratio.Therefore, it will usually
The first lithologic map illustration sheet (mud stone) in legend area is used to come and in the lithologic symbol district in Drawing zone
Represent that the symbol picture of mud stone contrasts.Concrete grammar can be such that
First extract first lithologic map illustration sheet (including rectangle frame) of legend area, calculate its figure width of frame L1,
Lithologic symbol district in Drawing zone is looked for an identical lithology (first lithology legend representative in legend area again
Lithology) symbol picture (identified its top the end degree of depth), go out this graphical diagram by Computer Automatic Recognition
The figure width of frame L2 of sheet, by comparing L1 and L2, scaling legend picture makes itself and identical lithology in Drawing zone
Symbol picture in the same size.And, the legend picture/symbol picture of identical lithology is in legend area/Drawing zone
Lithologic symbol district in width be typically of size of consistent.
It should be noted that in most cases, the figure width of frame L1 of legend picture and the figure of symbol picture
Width of frame L2 is roughly equal, needs the situation performing zoom operations the most during actual operation.Therefore, originally
The information extracting method that invention provides is particularly suited for batch operation, it is possible to greatly improve the work that data process
Efficiency.
When the symbol picture splitting the formation information to be extracted obtained in the legend picture in legend area with Drawing zone
In the same size time, it is possible to by contrast two pictures in symbol determine the layer attribute representated by symbol
And corresponding formation information.In the present embodiment, the different combining form that have employed chain-dotted line symbol carrys out generation
The lithology that table is different.
When layer attribute is stratum color, described identification step correspondingly needs to comprise the following steps:
The color symbol picture recording each strata division color in columnar section in Drawing zone is arranged and carries out point
Cut；
Code in color legend picture in legend area is split, in Drawing zone, each color symbol figure obtained
Code in sheet is compared, and then determines the concrete color of each strata division.
In the embodiment shown in fig. 5, have employed different digital codes to represent different colors.Identify face
The operation principle of color is essentially identical with the operation principle identifying lithology, does not therefore repeat them here.
Additionally it should be noted that, in the above-described embodiments, well logging columnar section is meet industry regulation black
White picture.Therefore, when comparing, can extract and legend picture and symbol picture comprise complete black picture
The minimum level rectangle picture (not including picture frame) of element content is compared.
Last S140, exports step, exports the respective formation information of each strata division.
Fig. 6 a and Fig. 6 b respectively illustrates original columnar section and the formation information of the text formatting extracted.
There it can be seen that the well logging block diagram of uniform format can realize batch operation, the result of identification accurately and fast,
Greatly improve scientific research efficiency.
Correspondingly, the present invention also provides for a kind of well logging columnar section information extracting system, is used for realizing above-mentioned information
Extracting method, this system includes:
Importing module, it is used for importing well logging columnar section, and determines and wherein comprise formation information to be extracted
Drawing zone and comprise the legend area of legend picture；
Analyzing module, it is for analyzing the layer attribute of formation information to be extracted in Drawing zone, and determines figure
Layer attribute represented by legend picture and parameter information thereof in example district；
Identification module, its utilize corresponding to legend picture in legend area and each strata division in Drawing zone for
The symbol picture of record formation information is compared, and then determines the layer attribute of each strata division and corresponding
Formation information；
Output module, it is used for exporting the respective formation information of each strata division.
The above, only the present invention be embodied as case, protection scope of the present invention is not limited thereto,
Any it is familiar with those skilled in the art in technical specification of the present invention, modifications of the present invention or replace
Change, all should be within protection scope of the present invention.
Claims (10)
1. a well logging columnar section information extracting method, including:
Steps for importing, imports well logging columnar section, and determines the drawing wherein comprising formation information to be extracted
District and the legend area comprising legend picture；
Analytical procedure, analyzes the layer attribute of formation information to be extracted in Drawing zone, and determines in legend area
Layer attribute represented by legend picture and parameter information thereof；
Identification step, utilize the legend picture in legend area with Drawing zone corresponding to each strata division for remembering
The symbol picture of record formation information is compared, and then determines the layer attribute and accordingly of each strata division
Layer information；
Output step, exports the respective formation information of each strata division.
Information extracting method the most according to claim 1, it is characterised in that:
Described layer attribute at least includes the one in the degree of depth at the bottom of top, stratum, stratum color and formation lithology.
Information extracting method the most according to claim 1, it is characterised in that when layer attribute includes ground
During the end degree of depth of layer top, described identification step correspondingly comprises the following steps:
The scale weighing depth of stratum is set for the columnar section in Drawing zone, and sign column is cutd open on scale
Depth data at the bottom of the actual top of face figure upper and lower side；
Identify the up-and-down boundary representing the symbol picture at the bottom of strata division top in columnar section, and obtain each up and down
The reading of the scale corresponding to border, degree of depth number at the bottom of actual top based on known columnar section upper and lower side
According to, converse depth data at the bottom of the actual top of each strata division.
Information extracting method the most according to claim 1, it is characterised in that when layer attribute includes ground
During layer color, described identification step correspondingly comprises the following steps:
The color symbol picture recording each strata division color in columnar section in Drawing zone is arranged and carries out point
Cut；
Code in color legend picture in legend area is split, in Drawing zone, each color symbol figure obtained
Code in sheet is compared, and then determines the concrete color of each strata division.
Information extracting method the most according to claim 1, it is characterised in that when layer attribute includes ground
During layer lithology, described identification step correspondingly comprises the following steps:
The lithologic symbol picture recording each strata division lithology in columnar section in Drawing zone is split；
Symbol in lithologic map illustration sheet in legend area is split, in Drawing zone, each lithologic symbol figure obtained
Symbol in sheet is compared, and then determines the concrete lithology of each strata division.
6. information extracting method as claimed in claim 5, it is characterised in that:
In described identification step, before comparing, if desired will be by the size of the legend picture in legend area
It is adjusted in Drawing zone split the size of the symbol picture obtained by scaling.
7. the information extracting method as described in claim 4 or 5, it is characterised in that:
Described well logging columnar section is to meet the black and white picture that industry specifies.
8. information extracting method as claimed in claim 7, it is characterised in that:
In described identification step, when comparing, extract in the black picture element in legend picture and symbol picture
Hold and compare.
9. information extracting method as claimed in claim 8, it is characterised in that:
Further, the minimum level square comprising complete black picture element content in legend picture and symbol picture is extracted
Shape picture.
10. a well logging columnar section information extracting system, including:
Importing module, it is used for importing well logging columnar section, and determines and wherein comprise formation information to be extracted
Drawing zone and comprise the legend area of legend picture；
Analyzing module, it is for analyzing the layer attribute of formation information to be extracted in Drawing zone, and determines figure
Layer attribute represented by legend picture and parameter information thereof in example district；
Identification module, its utilize corresponding to legend picture in legend area and each strata division in Drawing zone for
The symbol picture of record formation information is compared, and then determines the layer attribute of each strata division and corresponding
Formation information；
Output module, it is used for exporting the respective formation information of each strata division.
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| CN110593854A (en) * | 2019-09-26 | 2019-12-20 | 淮南矿业(集团)有限责任公司 | Method and device for quickly mapping deep drilling hole |
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| CN113435458A (en) * | 2021-02-08 | 2021-09-24 | 中国石油化工股份有限公司 | Rock slice image segmentation method, device and medium based on machine learning |
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