CN106291713B - A kind of processing method and processing device of determining formation lithology - Google Patents
A kind of processing method and processing device of determining formation lithology Download PDFInfo
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- CN106291713B CN106291713B CN201610720831.5A CN201610720831A CN106291713B CN 106291713 B CN106291713 B CN 106291713B CN 201610720831 A CN201610720831 A CN 201610720831A CN 106291713 B CN106291713 B CN 106291713B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
- G01V1/44—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging using generators and receivers in the same well
- G01V1/48—Processing data
- G01V1/50—Analysing data
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/61—Analysis by combining or comparing a seismic data set with other data
- G01V2210/616—Data from specific type of measurement
- G01V2210/6169—Data from specific type of measurement using well-logging
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Abstract
The embodiment of the invention provides a kind of processing method and processing devices of determining formation lithology.The described method includes: obtaining the logging response character parameter and logging response character value for presetting basement lithology in target area；Obtain the value of the corresponding logging response character parameter of substrate to be measured in the target area, when the logging response character value of the value of the substrate to be measured and the default basement lithology matches, determine that the lithology of the substrate to be measured is default basement lithology.Utilize the technical solution provided in an embodiment of the present invention, the log data of drilling well in target area can be made full use of, statistical analysis obtains the logging response character of the default basement lithology of entire target area, since log data has higher resolution ratio relative to seismic data, therefore, the logging response character of acquisition is also relatively accurate, and has very strong applicability to entire target area, has great importance for the exploration of substrate frontier.
Description
Technical field
The present invention relates to natural gas exploration technical fields, more particularly to a kind of processing side of definitely layer depth layer basement lithology
Method and device.
Background technique
Basin substrate generally comprises stratum rock below inside basin, and has existed before basin is formed.Basin
Frontier of the ground substrate as natural gas exploration, has good exploration prospect.The lithology and natural gas storage amount of basin substrate
It is closely bound up, however, it is lower to the research degree of basin substrate at present, it is indefinite to the understanding of basin basement lithology, it is therefore, existing
Having in technology has biggish difficulty to the Lithology Discrimination prediction of basin substrate.
In the prior art, seism processing, nuclear magnetic resonance or other Physical Experiment models are generallyd use to substrate
Lithology is studied, so that it is determined that the lithology of target substrate.Determine that the method for basement lithology is complex for operation step in the prior art,
Higher cost, and it is only applicable to the determination to the basement lithology to be measured of range very little, and substrate cannot be determined on a large scale
Lithology, almost without versatility.
Summary of the invention
A kind of processing method and processing device for being designed to provide determining formation lithology of the application, can be used for quick, quasi-
Whether the lithology for really judging basal layer in stratum is default basement lithology.
To achieve the goals above, the present invention provides a kind of processing method and processing device of determining formation lithology, the sides
Method and device are specifically achieved in that
A kind of processing method of determining formation lithology, which comprises
Obtain the logging response character parameter and logging response character value that basement lithology is preset in target area；
The value for obtaining the corresponding logging response character parameter of substrate to be measured in the target area, when described to be measured
When the value of substrate and the logging response character value of the default basement lithology match, the rock of the substrate to be measured is determined
Property for default basement lithology.
Optionally, in one embodiment of the invention, described to obtain the well logging sound that basement lithology is preset in target area
It answers characteristic parameter and logging response character value includes:
The log data of at least two drilling wells in target area is obtained, and the basement lithology of at least one drilling well is default base
Bed rock；
The log data of the drilling well is analyzed and processed, the logging response character ginseng of the default basement lithology is obtained
Several and logging response character value.
Optionally, in one embodiment of the invention, the log data to the drilling well is analyzed and processed, and is obtained
Logging response character parameter and logging response character value to the default basement lithology include:
According to the log data of the drilling well, the log for establishing the default basement lithology and other basement lithologies is handed over
It can scheme；
The coordinate parameters that the log cross plot is arranged are different log parameters；
When the discrimination for calculating the default basement lithology and other basement lithologies is greater than preset threshold, by the well logging
Logging response character parameter of the changing coordinates parameter of curve cross plot as the default basement lithology, and the well logging is rung
Answer the value of characteristic parameter as the logging response character value of the default basement lithology.
Optionally, in one embodiment of the invention, the default basement lithology is carbonate rock.
Optionally, in one embodiment of the invention, described to obtain the corresponding institute of substrate to be measured in the target area
The value for stating logging response character parameter includes:
Obtain the log data and earthquake of the drilling well within the substrate preset range to be measured of distance in the target area
Data；
The corresponding survey of the substrate to be measured is obtained according to the log data of the drilling well and seismic data inversion
The value of well response characteristic parameters.
A kind of processing unit of determining formation lithology, described device include:
Logging character acquiring unit, for obtain in target area preset basement lithology logging response character parameter and
Logging response character value；
Basement lithology determination unit, for obtaining the corresponding logging response character of substrate to be measured in the target area
The value of parameter, when the value of the substrate to be measured and the logging response character value of the default basement lithology match
When, determine that the lithology of the substrate to be measured is default basement lithology.
Optionally, in one embodiment of the invention, the logging character acquiring unit includes:
Log data acquiring unit, for obtaining the log data of at least two drilling wells in target area, and at least one
The basement lithology of drilling well is default basement lithology；
Data processing unit obtains the default fundamental rock for being analyzed and processed to the log data of the drilling well
The logging response character parameter and logging response character value of property.
Optionally, in one embodiment of the invention, the data processing unit includes:
Cross plot establishes unit, for the log data according to the drilling well, establishes the default basement lithology and other
The log cross plot of basement lithology；
Parameter set unit, the coordinate parameters for the log cross plot to be arranged are different log parameters；
Characteristic parameter determination unit, for being greater than when the discrimination for calculating the default basement lithology and other basement lithologies
It is special using the changing coordinates parameter of the log cross plot as the log response of the default basement lithology when preset threshold
Parameter is levied, and using the value of the logging response character parameter as the logging response character value of the default basement lithology.
Optionally, in one embodiment of the invention, the default basement lithology is carbonate rock.
Optionally, in one embodiment of the invention, the basement lithology determination unit includes:
Reference data acquiring unit, for obtaining the brill within the substrate preset range to be measured of distance in the target area
The log data and seismic data of well；
Inverting unit, for obtaining the substrate to be measured according to the log data and seismic data inversion of the drilling well
The value of the corresponding logging response character parameter.
The processing method and processing device of definitely layer depth layer basement lithology provided by the invention can be based in target area
The log data for knowing drilling well, it is for statistical analysis by the log data to different base lithology, determine default basement lithology
Logging response character.Based on the logging response character of the default basement lithology, by compare the log data of substrate to be measured with
The logging response character of the default basement lithology determines whether the lithology of the substrate to be measured is default basement lithology.Relatively
In art methods, present invention method can make full use of the log data of drilling well in target area, statistical
Analysis obtains the logging response character of the default basement lithology of entire target area, since log data has relative to seismic data
Higher resolution ratio, therefore, the logging response character of acquisition are also relatively accurate, and have to entire target area very strong suitable
With property, have great importance for the exploration of substrate frontier.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The some embodiments recorded in application, for those of ordinary skill in the art, in the premise of not making the creative labor property
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of flow chart of embodiment of the processing method of determining formation lithology provided by the invention；
Fig. 2 is a kind of flow chart of the embodiment provided by the invention for obtaining logging response character value method；
Fig. 3 is a kind of flow chart of embodiment provided by the invention to well logging data analysis processing method；
Fig. 4 is the log cross plot of the carbonate rock and granite established in an application scenarios of the invention；
Fig. 5 is the carbonate rock and gneissose log cross plot established in an application scenarios of the invention；
Fig. 6 is that the carbonate rock established in an application scenarios of the invention is intersected with the log of shallow rotten siltstone
Figure；
Fig. 7 is that the carbonate rock established in an application scenarios of the invention is intersected with the log of shallow metamorphic conglomerate
Figure；
Fig. 8 is that the carbonate rock established in an application scenarios of the invention is intersected with the log of every other lithology
Figure；
Fig. 9 is a kind of stream of the embodiment provided by the invention for obtaining substrate logging response character parameter value method to be measured
Cheng Tu；
Figure 10 is a kind of modular structure schematic diagram of embodiment of the processing unit of determining formation lithology provided by the invention；
Figure 11 is a kind of modular structure schematic diagram of embodiment of logging character acquiring unit provided by the invention；
Figure 12 is a kind of modular structure schematic diagram of embodiment of data processing unit provided by the invention；
Figure 13 is a kind of modular structure schematic diagram of embodiment of basement lithology determination unit provided by the invention.
Specific embodiment
In order to make those skilled in the art better understand the technical solutions in the application, below in conjunction with the application reality
The attached drawing in example is applied, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
The application protection all should belong in technical staff's every other embodiment obtained without making creative work
Range.
Fig. 1 is a kind of method flow diagram of embodiment of the processing method of determining formation lithology provided by the invention, such as Fig. 1
It is shown, the method may include:
S1: the logging response character parameter and logging response character value that basement lithology is preset in target area are obtained.
The default basement lithology in the present embodiment may include reflecting substrate institute to be measured natural gas in the target area
The basement lithology of rich reserves, in one embodiment of the invention, the default basement lithology may include carbonate rock, root
The geologic features such as reservoir space, pore structure, fluid properties according to carbonate rock, can determine in basal layer, carbonate rock
In gas reserves it is relatively high.The logging response character parameter may include the default basement lithology in target area
In can be clearly distinguishable from the log response parameters of other lithology, the corresponding value range of the log response parameter is the survey
Well response characteristic value.Wherein, the log response parameter may include density parameter, neutron porosity parameter, interval transit time ginseng
Several and natural gamma parameter etc., other described lithology may include granite, gneiss, the siltstone that shallowly goes bad, shallowly go bad gravel
Rock etc..
The present invention provides a kind of method of logging response character parameter for obtaining default basement lithology, Fig. 2 is the present invention
A kind of method flow diagram of embodiment of the acquisition logging response character value method of offer, as described in Figure 2, the method can wrap
It includes:
S21: the log data of at least two drilling wells in target area is obtained, and the basement lithology of at least one drilling well is pre-
If basement lithology.
In one embodiment of the invention, in the available target area at least two drilling wells log data,
The drilling well can be to have bored the drilling well for meeting substrate, and the basement lithology of at least one drilling well is default basement lithology.For example,
In one specific application scenarios, basement lithology is the process of the logging response character value of carbonate rock in obtaining Song-liao basin
In, 4 mouthfuls can be chosen from the drilling well of Song-liao basin bores the log data for meeting the drilling well that substrate is carbonate rock and 7 mouthfuls
Bore meet substrate be other lithology drilling well log data, wherein as described above, other described lithology may include granite,
Gneiss, shallowly go bad siltstone, shallow metamorphic conglomerate etc..The log data may include density parameter, neutron porosity parameter,
The log parameters value such as interval transit time parameter and natural gamma parameter, for example, the log data may include density curve, in
The logs such as sub- porosity curve, interval transit time curve, gamma ray curve.
S22: being analyzed and processed the log data of the drilling well, and the log response for obtaining the default basement lithology is special
Value indicative.
In the present embodiment, the log data of the drilling well can be analyzed and processed, obtain the default basement lithology
Logging response character value.Certainly, the logging response character value for obtaining the default basement lithology may include a variety of methods, example
Such as, for statistical analysis to the log data of the drilling well, when some logging response character parameter of the default basement lithology
Value when being different from the value of the logging response character parameter of other lithology obviously, can be special by the log response
Levy logging response character value of the value of parameter as the default basement lithology.
The present embodiment can be for statistical analysis to the known drilling well in target area, obtains the well logging of default basement lithology
Whether response characteristic provides data reference for the lithology of determination substrate to be measured for the default basement lithology.
The present invention provides the method for a kind of pair of well logging data analysis processing, and Fig. 3 is provided by the invention to log data point
A kind of method flow diagram of embodiment of processing method is analysed, as shown in figure 3, the method may include:
S31: according to the log data of the drilling well, the well logging for establishing the default basement lithology and other basement lithologies is bent
Line cross plot.
In the present embodiment, the default basement lithology and other can be established according to the log data of the drilling well respectively
The log cross plot of basement lithology, wherein the coordinate parameters of the log cross plot are log parameter, the well logging
Parameter may include density parameter, neutron porosity parameter, interval transit time parameter and natural gamma parameter etc..For example, described
Default basement lithology is carbonate rock, and the lithology of the drilling well further includes granite, gneiss and the siltstone that shallowly goes bad, and is being built
During vertical log cross plot, carbonate rock and granite, carbonate rock and gneiss, carbonate can be established respectively
The log cross plot of rock and shallow rotten siltstone.It should be noted that generally, the log data is log,
The log is full curve of the log parameter value with change in depth.
S32: the coordinate parameters that the log cross plot is arranged are different log parameters.
Since logging response character parameter may include multiple types, in the process for establishing the log cross plot
In, the coordinate parameters of the log cross plot can be converted, it is different log parameters, example that the coordinate parameters, which are arranged,
Such as, during establishing the log cross plot of carbonate rock and granite, gneiss and shallow rotten siltstone respectively,
Can be set the log cross plot coordinate parameters be density and neutron porosity, density and interval transit time, density with
The combination of a variety of log parameters such as natural gamma, neutron porosity and interval transit time, neutron porosity and natural gamma.
S33:, will be described when the discrimination for calculating the default basement lithology and other basement lithologies is greater than preset threshold
Logging response character parameter of the changing coordinates parameter of log cross plot as the default basement lithology, and by the survey
Logging response character value of the value of well response characteristic parameters as the default basement lithology.
In the present embodiment, when the coordinate parameters in the log cross plot are arranged to different log parameters
When, the discrimination showed between the default basement lithology and other lithology is not identical, generally by the geology of the target area
Condition influences.The area of the default basement lithology and other basement lithologies can be calculated by the log cross plot
Indexing can make the changing coordinates parameter of the log cross plot when the value of the discrimination is greater than preset threshold
For the logging response character parameter of the default basement lithology, and using the value of the logging response character parameter as described default
The logging response character value of basement lithology.For example, establishing carbonate rock and granite, carbonate rock and gneiss, carbonate
During the log cross plot of rock and shallow rotten siltstone, discovery is neutron porosity and nature when the coordinate parameters
When gamma, the discrimination between carbonate rock and other basement lithologies is larger, at this point it is possible to by neutron porosity, and/or it is natural
Logging response character parameter of the gamma as carbonate rock, and using the value of neutron porosity and/or natural gamma as carbonate
The logging response character value of rock.
Fig. 4 to Fig. 7 be the carbonate rock established respectively in an application scenarios of the invention and granite, carbonate rock with
The log cross plot of gneiss, carbonate rock and shallow rotten siltstone, carbonate rock and shallow metamorphic conglomerate, Fig. 8 is carbonic acid
The log cross plot of rock salt and every other lithology, the coordinate parameters of the log cross plot be neutron porosity and
Natural gamma, fracture and sampled point of other lithology in cross plot show to obtain discrimination highest at this time, therefore, can incite somebody to action
Natural gamma is as the logging response character parameter, as shown, the response characteristic value of natural gamma is 10API to 80API.
The statistical that the present embodiment can use log cross plot determines that the well logging of the default basement lithology is rung
Characteristic parameter and corresponding logging response character value are answered, log cross plot can intuitively, accurately reflect described default
Relationship between basement lithology and other lithology can accelerate the logging response character parameter for determining the default basement lithology.
S2: the value of the corresponding logging response character parameter of substrate to be measured in the target area is obtained, when described
When the value of substrate to be measured and the logging response character value of the default basement lithology match, the substrate to be measured is determined
Lithology be default basement lithology.
In the present embodiment, the corresponding logging response character parameter of substrate to be measured in the available target area
Value provides a kind of method of value for obtaining substrate logging response character parameter to be measured in one embodiment of the invention,
Fig. 9 is a kind of method flow of the embodiment provided by the invention for obtaining substrate logging response character parameter value method to be measured
Figure, as shown in figure 9, the value for obtaining the corresponding logging response character parameter of substrate to be measured in the target area can
To include:
S91: the log data and earthquake of the drilling well in target area within distance substrate preset range to be measured are obtained
Data.
S92: the corresponding institute of the substrate to be measured is obtained according to the log data of the drilling well and seismic data inversion
State the value of logging response character parameter.
In the present embodiment, can drilling well in the target area within selected distance substrate preset range to be measured,
Obtain the log data and seismic data of the drilling well.Log data and seismic data to the drilling well carry out anti-
It drills, obtains the value of the corresponding logging response character parameter of the substrate to be measured.For example, can be based in the present embodiment
Log data, seismic data, geologic information of drilling well etc., the inversion method constrained using Natural Gamma-ray Logging Curves,
Inverting obtains the value of the corresponding logging response character parameter of the substrate to be measured.Specifically, can by software to it is described
Seismic data, gamma ray log data and the geologic information of drilling well carry out inverting, and inversion result may include in target area
Reflect that the geologic section of the drilling well and substrate gamma ray log parameter to be measured can be from describedly by comparative analysis
The value of the gamma ray log parameter of the substrate to be measured is obtained in matter section.The value and institute when the substrate to be measured
When stating the logging response character value of default basement lithology and matching, determine that the lithology of the substrate to be measured is default basement lithology.
In the present embodiment, can use well shake in conjunction with inversion method determine that the corresponding log response of substrate to be measured is special
Levy the value of parameter.
The processing method of definitely layer depth layer basement lithology provided by the invention, can be based on known drilling well in target area
Log data, it is for statistical analysis by the log data to different base lithology, determine that the well logging of default basement lithology is rung
Answer feature.Based on the logging response character of the default basement lithology, by compare the log data of substrate to be measured with it is described pre-
If the logging response character of basement lithology, determine whether the lithology of the substrate to be measured is default basement lithology.Relative to existing
Technical method, present invention method can make full use of the log data of drilling well in target area, and statistical analysis obtains
The logging response character of the default basement lithology of entire target area, due to log data have relative to seismic data it is higher
Resolution ratio, therefore, the logging response character of acquisition are also relatively accurate, and have very strong applicability to entire target area,
Have great importance for the exploration of substrate frontier.
Another aspect of the present invention also provides a kind of processing unit of determining formation lithology, and Figure 10 is determination provided by the invention
A kind of modular structure schematic diagram of embodiment of the processing unit of formation lithology, in conjunction with attached drawing 10, which may include:
Logging character acquiring unit 101, for obtaining the logging response character parameter for presetting basement lithology in target area
And logging response character value；
Basement lithology determination unit 102, for obtaining the corresponding log response of substrate to be measured in the target area
The value of characteristic parameter, when the value and the logging response character value phase of the default basement lithology of the substrate to be measured
Timing determines that the lithology of the substrate to be measured is default basement lithology.
The processing unit of definitely layer depth layer basement lithology provided by the invention, can be based on known drilling well in target area
Log data, it is for statistical analysis by the log data to different base lithology, determine that the well logging of default basement lithology is rung
Answer feature.Based on the logging response character of the default basement lithology, by compare the log data of substrate to be measured with it is described pre-
If the logging response character of basement lithology, determine whether the lithology of the substrate to be measured is default basement lithology.Relative to existing
Technical method, present invention method can make full use of the log data of drilling well in target area, and statistical analysis obtains
The logging response character of the default basement lithology of entire target area, due to log data have relative to seismic data it is higher
Resolution ratio, therefore, the logging response character of acquisition are also relatively accurate, and have very strong applicability to entire target area,
Have great importance for the exploration of substrate frontier.
The present invention also provides a kind of embodiment of logging character acquiring unit 101, Figure 11 is well logging provided by the invention
A kind of modular structure schematic diagram of embodiment of feature acquiring unit, as shown in figure 11, the logging character acquiring unit 101 are wrapped
It includes:
Log data acquiring unit 111, for obtaining the log data of at least two drilling wells in target area, and at least one
The basement lithology of a drilling well is default basement lithology；
Data processing unit 112 obtains the default substrate for being analyzed and processed to the log data of the drilling well
The logging response character parameter and logging response character value of lithology.
The present embodiment can be for statistical analysis to the known drilling well in target area, obtains the well logging of default basement lithology
Whether response characteristic provides data reference for the lithology of determination substrate to be measured for the default basement lithology.
The present invention also provides a kind of embodiment of data processing unit 112, Figure 12 is data processing provided by the invention
A kind of modular structure schematic diagram of embodiment of unit, as shown in figure 12, the data processing unit 112 includes:
Cross plot establishes unit 121, for the log data according to the drilling well, establishes the default basement lithology and its
The log cross plot of his basement lithology；
Parameter set unit 122, the coordinate parameters for the log cross plot to be arranged are different log parameters；
Characteristic parameter determination unit 123, for when the discrimination for calculating the default basement lithology and other basement lithologies
When greater than preset threshold, rung the changing coordinates parameter of the log cross plot as the well logging of the default basement lithology
Characteristic parameter is answered, and using the value of the logging response character parameter as the logging response character value of the default basement lithology.
The statistical that the present embodiment can use log cross plot determines that the well logging of the default basement lithology is rung
Characteristic parameter and corresponding logging response character value are answered, log cross plot can intuitively, accurately reflect described default
Relationship between basement lithology and other lithology can accelerate the logging response character parameter for determining the default basement lithology.
In one embodiment of the invention, the default basement lithology can be carbonate rock, according to carbonate rock
The geologic features such as reservoir space, pore structure, fluid properties can determine in basal layer that the natural gas in carbonate rock stores up
It measures more relatively high than the gas reserves in other lithology.
The present invention also provides a kind of embodiment of basement lithology determination unit 102, Figure 13 is substrate provided by the invention
A kind of modular structure schematic diagram of embodiment of lithology determination unit, as shown in figure 13, the basement lithology determination unit 102 can
To include:
Reference data acquiring unit 131, for obtaining within the substrate preset range to be measured of distance in the target area
The log data and seismic data of drilling well；
Inverting unit 132 obtains described to be measured for the log data and seismic data inversion according to the drilling well
The value of the corresponding logging response character parameter of substrate.
In the present embodiment, can use well shake in conjunction with inversion method determine that the corresponding log response of substrate to be measured is special
Levy the value of parameter.
All the embodiments in this specification are described in a progressive manner, the highlights of each of the examples are with
The difference of other embodiments, the same or similar parts between the embodiments can be referred to each other.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
Although depicting the application by embodiment, it will be appreciated by the skilled addressee that the application there are many deformation and
Variation is without departing from spirit herein, it is desirable to which the attached claims include these deformations and change without departing from the application's
Spirit.
Although this application provides the method operating procedure as described in embodiment or flow chart, based on conventional or noninvasive
The labour for the property made may include more or less operating procedure.The step of enumerating in embodiment sequence is only numerous steps
One of execution sequence mode, does not represent and unique executes sequence.It, can when device or client production in practice executes
To execute or parallel execute (such as at parallel processor or multithreading according to embodiment or method shown in the drawings sequence
The environment of reason).
The device or module that above-described embodiment illustrates can specifically realize by computer chip or entity, or by having
The product of certain function is realized.For convenience of description, it is divided into various modules when description apparatus above with function to describe respectively.
The function of each module can be realized in the same or multiple software and or hardware when implementing the application.It is of course also possible to
Realization the module for realizing certain function is combined by multiple submodule or subelement.
Method, apparatus or module described herein can realize that controller is pressed in a manner of computer readable program code
Any mode appropriate is realized, for example, controller can take such as microprocessor or processor and storage can be by (micro-)
The computer-readable medium of computer readable program code (such as software or firmware) that processor executes, logic gate, switch, specially
With integrated circuit (Application Specific Integrated Circuit, ASIC), programmable logic controller (PLC) and embedding
Enter the form of microcontroller, the example of controller includes but is not limited to following microcontroller: ARC 625D, Atmel AT91SAM,
Microchip PIC18F26K20 and Silicone Labs C8051F320, Memory Controller are also implemented as depositing
A part of the control logic of reservoir.It is also known in the art that in addition to real in a manner of pure computer readable program code
Other than existing controller, completely can by by method and step carry out programming in logic come so that controller with logic gate, switch, dedicated
The form of integrated circuit, programmable logic controller (PLC) and insertion microcontroller etc. realizes identical function.Therefore this controller
It is considered a kind of hardware component, and hardware can also be considered as to the device for realizing various functions that its inside includes
Structure in component.Or even, it can will be considered as the software either implementation method for realizing the device of various functions
Module can be the structure in hardware component again.
Claims (4)
1. a kind of processing method of determining formation lithology, which is characterized in that the described method includes:
Obtain the logging response character parameter and logging response character value of carbonate rock in target area, wherein the well logging
Response characteristic parameters and logging response character value are arranged to following manner acquisition:
The log data of at least two drilling wells in target area is obtained, and the basement lithology of at least one drilling well is carbonate rock；
According to the log data of the drilling well, the log cross plot of the carbonate rock Yu other basement lithologies is established；Setting institute
The coordinate parameters for stating log cross plot are different log parameters；When the calculating carbonate rock and other basement lithologies
When discrimination is greater than preset threshold, using the changing coordinates parameter of the log cross plot as the well logging of the carbonate rock
Response characteristic parameters, and using the value of the logging response character parameter as the logging response character value of the carbonate rock；Its
In, other described basement lithologies include at least granite, gneiss, shallowly one of rotten siltstone, shallow metamorphic conglomerate, described
Log cross plot includes at least carbonate rock and granite, carbonate rock and gneiss, carbonate rock and shallow change accordingly
One of matter siltstone, carbonate rock and log cross plot of shallow metamorphic conglomerate；
The value for obtaining the corresponding logging response character parameter of substrate to be measured in the target area, when the substrate to be measured
The value and the logging response character value of carbonate rock when matching, determine that the lithology of the substrate to be measured is carbonic acid
Rock salt.
2. a kind of processing method of determining formation lithology according to claim 1, which is characterized in that described to obtain the mesh
The value of the corresponding logging response character parameter of substrate to be measured includes: in mark region
Obtain the log data and seismic data of the drilling well within the substrate preset range to be measured of distance in the target area；
The corresponding well logging of the substrate to be measured is obtained according to the log data of the drilling well and seismic data inversion to ring
Answer the value of characteristic parameter.
3. a kind of processing unit of determining formation lithology, which is characterized in that described device includes:
Logging character acquiring unit, for obtaining the logging response character parameter and log response of carbonate rock in target area
Characteristic value, wherein the logging response character parameter and logging response character value are arranged to following manner acquisition:
The log data of at least two drilling wells in target area is obtained, and the basement lithology of at least one drilling well is carbonate rock；
According to the log data of the drilling well, the log cross plot of the carbonate rock Yu other basement lithologies is established；Setting institute
The coordinate parameters for stating log cross plot are different log parameters；When the calculating carbonate rock and other basement lithologies
When discrimination is greater than preset threshold, using the changing coordinates parameter of the log cross plot as the well logging of the carbonate rock
Response characteristic parameters, and using the value of the logging response character parameter as the logging response character value of the carbonate rock；Its
In, other described basement lithologies include at least granite, gneiss, shallowly one of rotten siltstone, shallow metamorphic conglomerate, described
Log cross plot includes at least carbonate rock and granite, carbonate rock and gneiss, carbonate rock and shallow change accordingly
One of matter siltstone, carbonate rock and log cross plot of shallow metamorphic conglomerate；
Basement lithology determination unit, for obtaining the corresponding logging response character parameter of substrate to be measured in the target area
Value determine institute when the logging response character value of the value of the substrate to be measured and the carbonate rock matches
The lithology for stating substrate to be measured is carbonate rock.
4. a kind of processing unit of determining formation lithology according to claim 3, which is characterized in that the basement lithology is true
Order member includes:
Reference data acquiring unit, for obtaining the drilling well within the substrate preset range to be measured of distance in the target area
Log data and seismic data；
It is corresponding to obtain the substrate to be measured for the log data and seismic data inversion according to the drilling well for inverting unit
The logging response character parameter value.
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Non-Patent Citations (3)
| Title |
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| Determining the inputs to the Mariana Subduction Factory:Using core-log integration to reconstruct basement lithology at ODP Hole 801C;S. R. Barr et al.;《Geochemistry,Geophysics,Geosystems》;20021116;第3卷(第11期);第1—26页 |
| 哈萨克斯坦K区块基底复杂岩性识别方法;董红等;《国外测井技术》;20110228(第 1 期);第31—34页 |
| 济阳坳陷太古界岩浆岩常规测井综合识别;周廷全等;《油气地质与采收率》;20111130;第18卷(第6期);第37—39页 |
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