CN107590743A - Method and device for determining abundance of petroleum resources - Google Patents
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Abstract
The invention provides a method and a device for determining the abundance of petroleum resources, wherein the method comprises the following steps: respectively determining similarity coefficients between a zone to be detected in the work area and various reference zones in the multiple types of reference zones; selecting the maximum value of the determined similarity coefficients, and taking the reference zone corresponding to the maximum value as an analog zone; judging whether the maximum value meets a preset threshold value or not; under the condition that the maximum value meets the preset threshold value, calculating to obtain a resource abundance influence factor of the zone to be detected based on the geological parameters of the analog zone and the geological parameters of the zone to be detected; and calculating the petroleum resource abundance of the zone to be detected according to the resource abundance influence factor of the zone to be detected and the petroleum resource abundance of the analog zone. In the embodiment of the invention, the determination precision of the abundance of the petroleum resources is greatly improved, and the method plays an important role in determining the petroleum exploration potential in the work area.
Description
Technical Field
The invention relates to the technical field of geological exploration, in particular to a method and a device for determining the abundance of petroleum resources.
Background
The abundance of petroleum resources refers to the amount of petroleum resources contained in a unit area in a work area, and is an important parameter for calculating the resource amount in an analogous manner. The resource abundance of a petroleum zonal is an important parameter for measuring the potential of the zonal petroleum resources.
At present, a similarity coefficient reflecting the relation between a zone to be detected and a reference zone can be obtained by comparing the zone to be detected and the reference zone, and the resource abundance of the petroleum zone is calculated according to the similarity coefficient and the resource abundance of the reference zone. However, there are also some deficiencies in determining the abundance of petroleum zonal resources using this method.
1) The existing method ignores whether the similarity between the zone to be measured and the reference zone meets the requirement of comparison, and compares the reference zone without the comparability as similarity, so that the obtained comparison result is unreasonable.
2) The resource abundance is calculated by using the similarity coefficient, other influence factors related to the resource abundance are ignored, and the obtained zonal resource abundance is inaccurate.
In view of the above problems, no effective solution has been proposed.
Disclosure of Invention
The invention provides a method and a device for determining the abundance of petroleum resources, which aim to improve the calculation precision of the abundance of petroleum zone resources.
The embodiment of the invention provides a method for determining the abundance of petroleum resources, which comprises the following steps: respectively determining similarity coefficients between a zone to be detected in the work area and various reference zones in the multiple types of reference zones; selecting the maximum value in the determined similarity coefficients, and taking the reference zone corresponding to the maximum value as an analog zone; judging whether the maximum value meets a preset threshold value or not; under the condition that the maximum value meets the preset threshold value, calculating to obtain a resource abundance influence factor of the zone to be detected based on the geological parameters of the analog zone and the geological parameters of the zone to be detected; and calculating the abundance of the petroleum resource in the zone to be detected according to the resource abundance influence factor of the zone to be detected and the abundance of the petroleum resource in the analogy zone.
In one embodiment, the geological parameters of the analogy zone may include, but are not limited to, at least one of: the oil supply per unit area of the analog zone, the percentage of the enclosed area of the analog zone to the zone area, the average enclosed height of the analog zone, and the average reservoir porosity of the analog zone, and the geological parameters of the zone to be measured include at least one of: the oil supply per unit area of the zone to be measured, the percentage of the trap area of the zone to be measured to the area of the zone, the average trap closing height of the zone to be measured and the average reservoir porosity of the zone to be measured.
In one embodiment, the resource abundance influence factor of the to-be-detected zone can be calculated according to the following formula:
wherein f represents the resource abundance influence factor of the zone to be detected, and Q is dimensionless play /S play And the unit area oil supply of the zone to be measured is expressed as follows: 10 4 t/km 2 ，Q cal /S cal The unit area oil supply amount of the analog zone is expressed by the following unit: 10 4 t/km 2 ，p play And the percentage of the enclosed area in the zone to be measured in the area of the zone is expressed as follows: % h play And the average closed height of the traps in the zone to be measured is represented by the unit: m, p cal Represents the percentage of the enclosed area in the analog zone to the area of the zone in units of: % h cal Represents the average closure height of traps in the analog band, in units of: m, phi play Representing the average reservoir porosity in the analog zone in units of: % phi, phi cal Representing the average porosity of the reservoir in the analog zone in units of: %.
In one embodiment, the abundance of petroleum resources in the zone to be detected can be calculated according to the following formula:
R play ＝R cal ×f
wherein R is play Representing the abundance of the petroleum resource in the zone to be detected, and the unit is as follows: 10 4 t/km 2 ，R cal Representing the abundance of petroleum resources in said analogy zone in units of: 10 4 t/km 2 F represents the resource abundance influence factor of the zone to be detected, and is dimensionless.
In one embodiment, before determining the similarity coefficients between the zone to be measured in the work area and various reference zones in the multiple types of reference zones, the method may include: and classifying all types of reference zones in the work area according to preset requirements to obtain multiple types of reference zones.
In one embodiment, the similarity coefficient between the zone to be measured in the work area and each of the multiple types of reference zones can be determined according to the following formula:
wherein, L (j) represents the similarity between all the geological parameters in the zone to be detected and the jth reference zone, and the unit is as follows: percent, A (i) represents the quantized value of the ith geological parameter in the zone to be measured, and is dimensionless, m represents the total number of the geological parameters, and B (j) (i) represents the quantized value of the ith geological parameter in the jth reference zone, and is dimensionless.
In one embodiment, after calculating the abundance of the petroleum resource in the zone to be detected, the method further includes: and carrying out exploration, production and deployment on the zone to be detected according to the abundance of the petroleum resources in the zone to be detected.
The embodiment of the invention also provides a device for determining the abundance of petroleum resources, which can comprise: the coefficient determining module can be used for respectively determining similarity coefficients between the zone to be detected in the work area and various reference zones in the multiple types of reference zones; the zone determining module can be used for selecting the maximum value in the determined multiple similarity coefficients and taking the reference zone corresponding to the maximum value as an analog zone; the threshold value judging module can be used for judging whether the maximum value meets a preset threshold value or not; the influence factor determination module can be used for calculating and obtaining a resource abundance influence factor of the to-be-detected zone based on the geological parameters of the analog zone and the geological parameters of the to-be-detected zone under the condition that the maximum value meets the preset threshold value; and the resource abundance determining module can be used for calculating the petroleum resource abundance of the to-be-detected zone according to the resource abundance influence factor of the to-be-detected zone and the petroleum resource abundance of the analogy zone.
In one embodiment, the geological parameters of the analogy zone may include, but are not limited to, at least one of: oil supply per area of the analog zone, percentage of enclosed area of the analog zone to zone area, average enclosed height of the analog zone, average reservoir porosity of the analog zone, geological parameters of the zone to be measured including at least one of: the oil supply of the area to be measured in unit area, the percentage of the enclosed area of the area to be measured in the area of the area to be measured, the average enclosed height of the area to be measured and the average reservoir porosity of the area to be measured.
In an embodiment, the influence factor determining module may be specifically configured to calculate the resource abundance influence factor of the to-be-detected zone according to the following formula:
wherein f represents the resource abundance influence factor of the zone to be detected, and Q is dimensionless play /S play And the unit area oil supply of the zone to be measured is represented as follows: 10 4 t/km 2 ，Q cal /S cal The unit area oil supply amount of the analog zone is expressed by the following unit: 10 4 t/km 2 ，p play And the percentage of the enclosed area in the zone to be measured in the area of the zone is expressed as follows: % h play And the average closed height of the traps in the zone to be measured is represented by the unit: m, p cal Indicating the circle in the analog zoneThe percentage of the closed area to the area of the zone is given in units of: % h cal Represents the trap average closure height in the analog band in units of: m, phi play Representing the average reservoir porosity in the analog zone in units of: % phi cal Representing the average reservoir porosity in the analog zone in units of: % of the total weight of the composition.
In the embodiment of the invention, whether the maximum value in the similarity coefficient between the zone to be detected and each zone in the multiple reference zones meets the preset threshold value is judged, namely, whether the zone related to the zone to be detected exists in the multiple reference zones is judged, and the resource abundance of the petroleum zone is calculated under the condition of judging the existence, so that the aim of determining the reference work area with the comparability with the zone to be detected is fulfilled. And calculating to obtain a resource abundance influence factor of the zone to be detected based on main factors which have larger influence on the petroleum resource abundance in the zone to be detected and the reference zone, and obtaining the petroleum resource abundance of the zone to be detected, so that the defect that the resource abundance is calculated only by using the similarity coefficient and other factors are ignored in the prior art is overcome, the determination precision of the petroleum resource abundance is greatly improved, and the method has an important effect on determining the petroleum exploration potential in the work area.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present application, and for those skilled in the art, other drawings may be obtained according to these drawings without creative efforts.
FIG. 1 is a flow chart of a method for determining the abundance of petroleum resources provided herein;
fig. 2 is a block diagram of a structure of an apparatus for determining abundance of petroleum resources provided by the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making creative efforts shall fall within the protection scope of the present application.
In view of the defects that, in the prior art, when determining the abundance of petroleum resources, a reference zone without comparability is easy to be compared as a zone similar to a zone to be measured, and the abundance of resources is calculated by using only a similarity coefficient, the inventor proposes to firstly judge whether the maximum value of the similarity coefficient between the zone to be measured and each zone of a plurality of reference zones meets a preset threshold value, namely, judge whether a zone related to the zone to be measured exists in the plurality of reference zones, and then calculate the abundance of petroleum zone resources under the condition of judging that the zone exists. The resource abundance influence factor of the zone to be measured can be calculated based on the main factors which have larger influence on the abundance of the petroleum resource in the zone to be measured and the reference zone, and then the abundance of the petroleum resource in the zone to be measured can be calculated by combining the abundance of the petroleum resource in the analogy zone. Based on this, a method for determining the abundance of petroleum resources is proposed, as shown in fig. 1, which may include the following steps:
s101: and respectively determining the similarity coefficient between the zone to be detected in the work area and various reference zones in the multiple types of reference zones.
In the embodiment, when determining the abundance of the petroleum resource, the similarity coefficient between the zone to be measured in the work area and various reference zones in the multiple types of reference zones can be determined.
According to the 'five conditions' of the oil-gas reservoir, which can refer to hydrocarbon source rock conditions, reservoir conditions, cover layer conditions, trapping conditions and storage conditions, an evaluation system of a plurality of geological parameters in the zone to be tested is built, grading, quantifying and normalizing treatment is carried out on all the parameters, and then all the reference zones in the work area are classified according to the preset requirements for building the evaluation system to obtain various types of reference zones. For example, in an embodiment of the present application, the parameters obtained after the above-mentioned evaluation system and hierarchical quantification processing are shown in table 1, all reference zones can be divided into 4 types according to 11 geological parameters of the existing reference zones, and the quantified values are: 0 to 0.25, 0.25 to 0.5, 0.5 to 0.75 and 0.75 to 1. There may be 11 geological parameters in each type of reference zone. Of course, other classification methods may also be used to more finely divide the reference work area, which is not limited in this application.
Specifically, the quantized values of the 11 geological parameters may be obtained according to the hierarchical quantized values of the plurality of geological parameters in table 1, and may be represented by a one-dimensional array a; then, the same method can be used to obtain the quantized values of the geological parameters of the other i reference regions, which are represented by B (j) (i). The selected reference areas are all known geological zones or blocks meeting the condition of three high. The three-high can be a zone with high cognition degree and determined resource abundance value obtained by exploration.
TABLE 1 evaluation classification system for multiple geological parameters in oil zones
Further, in an embodiment of the present application, after the dividing, a similarity coefficient between the zone to be measured in the work area and each of the multiple types of reference zones may be determined according to the following formula:
wherein, L (j) represents the similarity between all geological parameters in the zone to be measured and the jth reference zone, and the unit is as follows: percent, A (i) represents the quantized value of the ith geological parameter in the zone to be measured, and is dimensionless, m represents the total number of the geological parameters, and B (j) (i) represents the quantized value of the ith geological parameter in the jth reference zone, and is dimensionless.
In the present embodiment, the degree of contrast between the zone to be measured and the various reference zones can be determined by comparing the similarity coefficients between the zone to be measured and the various reference zones. A basis may be laid down for later determination of the most relevant reference band.
S102: and selecting the maximum value of the plurality of determined similarity coefficients, and taking the reference zone corresponding to the maximum value as an analog zone.
S103: and judging whether the maximum value meets a preset threshold value or not.
In this embodiment, after obtaining the similarity coefficients, the maximum value of the similarity coefficients can be selected, and the reference zone corresponding to the maximum value can be used as the analog zone.
L (j) can be arranged from large to small, namely, the front part with high similarity and the back part with low similarity. Selecting the highest similarity from the arranged similarity coefficients, and using L as the highest similarity high Indicating that the reference zone corresponding to the highest value is used as the analog scale zone.
After the maximum value is obtained, whether the maximum value meets a preset threshold value can be judged. The preset threshold value can be a value between 1% and 100% artificially set by geological requirements, and the higher the value is, the stricter the corresponding exploration requirement is, and the more accurate the obtained abundance value of the petroleum resources is. Specifically, the standard reaching similarity L can be determined according to the requirement of calculation precision min . If the calculation precision requirement is higher, the similarity requirement of the analog zone is higher.
In the embodiment, after the maximum value of the multiple similarity coefficients is obtained, whether the maximum value meets the preset threshold value or not can be judged first, so that the defect that when only the similarity between the to-be-measured zone and the reference zone is compared in the prior art, the reference zone which does not meet the comparison condition is easily regarded as similar to be compared is overcome, and the comparison result obtained by adopting the embodiment is more reasonable.
S104: and under the condition that the maximum value meets a preset threshold value, calculating to obtain a resource abundance influence factor of the zone to be detected based on the geological parameters of the analog zone and the geological parameters of the zone to be detected.
When the maximum value meets a preset threshold value, the resource abundance influence factor of the zone to be measured can be calculated and obtained based on the geological parameters of the analog zone and the geological parameters of the zone to be measured.
In this embodiment, when the analogy condition is satisfied, the band also has no hiding problem, and the cover layer and the storage condition of the band and the scale area are substantially similar. Then, the largest impact on resource abundance is the trap volume, reservoir porosity, and hydrocarbon supply, among others. Specifically, in the present embodiment, as shown in table 1, the geological parameters of the analog band include, but are not limited to, at least one of the following: oil supply per area of the analog zone, percentage of the enclosed area of the analog zone to the zone area, average enclosed height of the analog zone, average reservoir porosity of the analog zone, geological parameters of the zone under test may include, but are not limited to, at least one of: the oil supply of the area to be measured in unit area, the percentage of the enclosed area of the area to be measured in the area of the area to be measured, the average enclosed height of the area to be measured and the average reservoir porosity of the area to be measured.
Specifically, in this embodiment, the resource abundance influence factor of the to-be-detected band can be calculated according to the following formula:
wherein f represents the resource abundance influence factor of the zone to be detected, and Q is dimensionless play /S play And the unit area oil supply of the zone to be measured is represented as follows: 10 4 t/km 2 ，Q cal /S cal The unit area oil supply amount of the analog zone is expressedThe bit is as follows: 10 4 t/km 2 ，p play And the percentage of the enclosed area in the zone to be detected to the area of the zone is expressed as follows: % h play And the average closed height of the traps in the zone to be measured is represented by the unit: m, p cal Represents the percentage of the enclosed area in the analog zone to the zone area in units of: % h cal Represents the trap average closure height in the analog band in units of: m, phi play Representing the average reservoir porosity in the analog zone in units of: % phi cal Representing the average reservoir porosity in the analog zone in units of: % of the total weight of the composition. Wherein Q play Indicating the oil supply amount of the zone to be measured, S play Representing the total area, Q, of the zone to be measured cal Represents the oil supply quantity, S, of the analog zone cal Representing the total area of the analog band.
When the above maximum value does not satisfy the preset threshold value, i.e., if the highest similarity L high Similarity less than standard L min If the analogy requirement is not met, all the reference bands can be classified again in a finer way, and after a more detailed classification result is obtained, analogy can be continued and an analogy band with higher similarity can be searched until the maximum value of the obtained similarity coefficient can meet a preset threshold value. After the similarity coefficient meeting the preset threshold is obtained, the resource abundance influence factor of the zone to be detected can be calculated and obtained based on the geological parameters of the analog zone and the geological parameters of the zone to be detected.
In the embodiment, after the similarity coefficient is determined, the petroleum resource abundance influence factor of the zone to be detected is calculated by selecting the parameter most related to the petroleum resource potential and based on the selected parameter, so that the defect that the calculated zone resource abundance is inaccurate when the resource abundance is calculated only by using the similarity coefficient in the prior art can be overcome.
S105: and calculating the petroleum resource abundance of the zone to be detected according to the resource abundance influence factor of the zone to be detected and the petroleum resource abundance of the analog zone.
In this embodiment, after obtaining the influence factor of the abundance of the petroleum resource, the abundance of the petroleum resource in the to-be-measured zone can be calculated according to the influence factor of the abundance of the petroleum resource in the to-be-measured zone and the abundance of the petroleum resource in the analog zone.
Specifically, the petroleum resource abundance of the zone to be detected can be calculated according to the following formula:
R play ＝R cal ×f
wherein R is play And the abundance of the petroleum resources in the zone to be detected is represented as follows: 10 4 t/km 2 ，R cal Representing the abundance of petroleum resources in said analogy zone in units of: 10 4 t/km 2 F represents the resource abundance influence factor of the zone to be detected, and is dimensionless.
After the petroleum resource abundance of the zone to be detected is obtained through calculation, the petroleum resource abundance of the zone to be detected can be multiplied by the area of the zone to be detected, so that the resource amount of the zone can be obtained. Further, the resource amount of the zone can be utilized to perform zone resource evaluation, zone optimization and exploration production deployment on the zone to be detected.
The method for determining the abundance of petroleum resources is described in detail with reference to a specific example, but it should be noted that the specific example is only for better describing the present invention and is not to be construed as limiting the present invention.
In this example, the geological parameters of the petroleum zone 1 to be measured (i.e., the zone to be measured in the above description) are shown in table 2, and the geological parameters of the 3 graduated zones (i.e., the various reference zones in the above description) are shown in table 3.
TABLE 2 geological parameters of oil zone 1
TABLE 3 geological parameters of the graduated area
In this embodiment, the method for determining the abundance of petroleum resources in petroleum zone 1 may specifically include the following steps:
step 1: and (4) grading, quantifying and normalizing the reservoir formation condition evaluation parameters of the petroleum zone.
And according to the grading quantization standard of the table 1, quantizing each geological parameter of the 3 scale areas and the petroleum zone respectively to obtain an evaluation parameter quantization table of the scale areas and the petroleum zone shown in the table 4.
TABLE 4 Scale zones and Petroleum bands evaluation parameter quantification table
And 2, step: similarity is calculated based on comparing each geological parameter in the petroleum zone and the graduated zone.
And (3) utilizing the quantitative values of the geological parameters in the table 4, and obtaining the similarity coefficient of the 11 evaluation parameters in the petroleum zone 1 and the 3 scale areas according to a similarity coefficient calculation formula. The similarity coefficients with the scale area 1, the scale area 2 and the scale area 3 are respectively as follows: 80%, 85.45% and 72.73%.
And step 3: determining whether the highest similarity meets the requirement of analogy.
The similarity between the petroleum zone 1 and the 3 scale areas is respectively 80%, 85.45% and 72.73%, the similarity is ranked from big to small, the scale area 2 with the highest similarity is the highest, and the corresponding highest similarity L is the highest high ＝85.45％。
According to the standard with higher requirement on the calculation precision, the preset threshold value is taken as L min =75%. The above maximum similarity L high Similarity greater than standard L min Satisfying the analogy condition, the resource can be processedAnd (4) calculating an abundance influence factor.
And 4, step 4: resource abundance influential factors of the petroleum zones relative to the graduated zones are estimated.
The scale area 2 is selected as an analog scale area, and the resource abundance influence factor f =0.37 of the scale area can be calculated according to the calculation formula of the resource abundance influence factor by using the geological parameters in tables 2 and 3. The calculation process is as follows:
f＝0.37
and 5: and calculating the resource abundance of the petroleum zone.
Utilizing the resource abundance of the scale area 2 and calculating the resource abundance influence factor f, and obtaining the petroleum resource abundance R in the petroleum zone according to the petroleum resource abundance calculation formula play ＝6.73×10 4 t/km 2 . The calculation process is as follows:
R play ＝18.2×0.37＝6.73
from the above description, it can be seen that the embodiments of the present invention achieve the following technical effects: and judging whether the maximum value in the similarity coefficient between the zone to be detected and each zone in the plurality of reference zones meets a preset threshold value, namely judging whether a zone related to the zone to be detected exists in the plurality of reference zones, and calculating the resource abundance of the petroleum zone under the condition of judging that the zone exists, so that the aim of determining the reference work area which has comparability with the zone to be detected is fulfilled. And calculating to obtain a resource abundance influence factor of the zone to be detected based on main factors which have larger influence on the petroleum resource abundance in the zone to be detected and the reference zone, and obtaining the petroleum resource abundance of the zone to be detected, so that the defect that the resource abundance is calculated only by using the similarity coefficient and other factors are ignored in the prior art is overcome, the determination precision of the petroleum resource abundance is greatly improved, and the method has an important effect on determining the petroleum exploration potential in the work area.
Based on the same inventive concept, the embodiment of the invention also provides a device for determining the abundance of petroleum resources, which is described in the following embodiment. Because the principle of solving the problems of the determination device for the abundance of the petroleum resource is similar to the determination method for the abundance of the petroleum resource, the implementation of the determination device for the abundance of the petroleum resource can be referred to the implementation of the determination method for the abundance of the petroleum resource, and repeated details are not repeated. As used hereinafter, the term "unit" or "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated. Fig. 2 is a block diagram of a structure of an apparatus for determining abundance of petroleum resources according to an embodiment of the present invention, as shown in fig. 2, which may include: a coefficient determination module 201, a zone determination module 202, a threshold determination module 203, an influence factor determination module 204, and a resource abundance determination module 205, and the structure will be described below.
The coefficient determining module 201 may be configured to determine similarity coefficients between a zone to be detected in the work area and various reference zones in the multiple types of reference zones, respectively;
a zone determining module 202, configured to select a maximum value of the determined similarity coefficients, and use a reference zone corresponding to the maximum value as an analog zone;
a threshold determining module 203, configured to determine whether the maximum value meets a preset threshold;
an influence factor determining module 204, configured to calculate, when the maximum value satisfies the preset threshold, a resource abundance influence factor of the to-be-measured zone based on the geological parameter of the analog zone and the geological parameter of the to-be-measured zone;
the resource abundance determining module 205 may be configured to calculate the abundance of the petroleum resource in the to-be-detected zone according to the resource abundance influencing factor of the to-be-detected zone and the abundance of the petroleum resource in the analogy zone.
In one embodiment, the geological parameters of the analogy zone may include, but are not limited to, at least one of: the oil supply per unit area of the analog zone, the percentage of the enclosed area of the analog zone to the zone area, the average enclosed height of the analog zone, and the average reservoir porosity of the analog zone, and the geological parameters of the zone to be measured include at least one of: the oil supply of the area to be measured in unit area, the percentage of the enclosed area of the area to be measured in the area of the area to be measured, the average enclosed height of the area to be measured and the average reservoir porosity of the area to be measured.
In an embodiment, the influence factor determining module may be specifically configured to calculate the resource abundance influence factor of the to-be-detected zone according to the following formula:
wherein f represents the resource abundance influence factor of the zone to be detected, and Q is dimensionless play /S play And the unit area oil supply of the zone to be measured is represented as follows: 10 4 t/km 2 ，Q cal /S cal The unit area oil supply amount of the analog zone is expressed by the following unit: 10 4 t/km 2 ，p play And the percentage of the enclosed area in the zone to be detected to the area of the zone is expressed as follows: % h play And the average closed height of the traps in the zone to be measured is represented by the unit: m, p cal Represents the percentage of the enclosed area in the analog zone to the area of the zone in units of: % h cal Represents the average closure height of traps in the analog band, in units of: m, phi play Representing the average reservoir porosity in the analog zone in units of: % phi cal Representing the average porosity of the reservoir in the analog zone in units of: % of the total weight of the composition.
In one embodiment, the resource abundance determining module may be specifically configured to calculate the abundance of the petroleum resource in the to-be-detected zone according to the following formula:
R play ＝R cal ×f
wherein R is play And the abundance of the petroleum resources in the zone to be detected is represented as follows: 10 4 t/km 2 ，R cal Representing the abundance of petroleum resources in said analogy zone in units of: 10 4 t/km 2 And f represents the resource abundance influence factor of the zone to be detected, and is dimensionless.
By utilizing the implementation mode of the device for determining the abundance of the petroleum resource provided by each embodiment, the method for determining the abundance of the petroleum resource can be automatically implemented to predict the abundance of the petroleum resource, the specific participation of implementation personnel can be avoided, the prediction result of the abundance of the petroleum resource can be directly output, the operation is simple and rapid, and the user experience is effectively improved.
It should be noted that the above-mentioned description of the apparatus according to the method embodiment may also include other embodiments, and specific implementation manners may refer to the description of the related method embodiment, which is not described herein again.
The present application is not limited to what has to be described in the embodiments of the present application. Certain industry standards or implementations modified slightly from those described using custom modes or examples can also achieve the same, equivalent or similar, or other expected implementation results after being modified. Examples of data acquisition/storage/determination and the like using these modifications or variations may still fall within the scope of alternative embodiments of the present application.
Although the present application provides method steps as described in the examples or flowcharts, more or fewer steps may be included based on conventional or non-inventive means. The order of steps recited in the embodiments is merely one manner of performing the steps in a multitude of sequences, and does not represent a unique order of performance. When implemented in an actual device or end product, can be executed sequentially or in parallel according to the methods shown in the embodiments or figures (e.g., parallel processor or multi-thread processing environments, even distributed data processing environments). The terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the presence of additional identical or equivalent elements in processes, methods, articles, or apparatus that include the recited elements is not excluded.
The units, devices, modules, etc. set forth in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. For convenience of description, the above devices are described as being divided into various modules by functions, and are described separately. Of course, in implementing the present application, the functions of each module may be implemented in one or more software and/or hardware, or a module implementing the same function may be implemented by a combination of a plurality of sub-modules or sub-units, and the like. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, 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. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Those skilled in the art will also appreciate that, in addition to implementing the controller in purely computer readable program code means, the same functionality can be implemented by logically programming method steps such that the controller is in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Such a controller may therefore be considered as a hardware component, and the means included therein for performing the various functions may also be considered as a structure within the hardware component. Or even means for performing the functions may be conceived to be both a software module implementing the method and a structure within a hardware component.
The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, classes, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application or portions thereof that contribute to the prior art may be embodied in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, or the like, and includes several instructions for enabling a computer device (which may be a personal computer, a mobile terminal, a server, or a network device) to execute the method according to the embodiments or some portions of the embodiments of the present application.
The embodiments in the present specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on differences from other embodiments. The application is operational with numerous general purpose or special purpose computing system environments or configurations. For example: personal computers, server computers, hand-held or portable devices, tablet-type devices, multiprocessor systems, microprocessor-based systems, set top boxes, programmable electronic devices, network PCs, minicomputers, mainframe computers, distributed computing environments that include any of the above systems or devices, and the like.
While the present application has been described with examples, those of ordinary skill in the art will appreciate that there are numerous variations and permutations of the present application without departing from the spirit of the application, and it is intended that the appended claims encompass such variations and permutations without departing from the spirit of the application.
Claims (10)
1. A method for determining the abundance of petroleum resources, comprising:
respectively determining similarity coefficients between a zone to be detected in the work area and various reference zones in the multiple types of reference zones;
selecting the maximum value in the determined similarity coefficients, and taking the reference zone corresponding to the maximum value as an analog zone;
judging whether the maximum value meets a preset threshold value or not;
under the condition that the maximum value meets the preset threshold value, calculating to obtain a resource abundance influence factor of the zone to be detected based on the geological parameters of the analog zone and the geological parameters of the zone to be detected;
and calculating the abundance of the petroleum resource in the zone to be detected according to the resource abundance influence factor of the zone to be detected and the abundance of the petroleum resource in the analogy zone.
2. The method of claim 1, wherein the geological parameters of the analogy zone include at least one of: the oil supply per unit area of the analog zone, the percentage of the enclosed area of the analog zone to the zone area, the average enclosed height of the analog zone, and the average reservoir porosity of the analog zone, and the geological parameters of the zone to be measured include at least one of: the oil supply of the area to be measured in unit area, the percentage of the enclosed area of the area to be measured in the area of the area to be measured, the average enclosed height of the area to be measured and the average reservoir porosity of the area to be measured.
3. The method according to claim 2, wherein the resource abundance influence factor of the test band is calculated according to the following formula:
wherein f represents the resource abundance influence factor of the zone to be detected, and Q is dimensionless play /S play And the unit area oil supply of the zone to be measured is represented as follows: 10 4 t/km 2 ，Q cal /S cal The unit area oil supply amount of the analog zone is expressed by the following unit: 10 4 t/km 2 ，p play And the percentage of the enclosed area in the zone to be detected to the area of the zone is expressed as follows: % h play And the average closure height of the trap in the zone to be measured is expressed by the unit: m, p cal Represents the percentage of the enclosed area in the analog zone to the area of the zone in units of: % h cal Represents the trap average closure height in the analog band in units of: m, phi play Representing the average porosity of the reservoir in the analog zone in units of: % phi cal Representing the average porosity of the reservoir in the analog zone in units of: %.
4. The method according to claim 1, wherein the abundance of petroleum resources in said test zone is calculated according to the following formula:
R play ＝R cal ×f
wherein R is play And the abundance of the petroleum resources in the zone to be detected is represented as follows: 10 4 t/km 2 ，R cal Representing the abundance of petroleum resources in said analogy zone in units of: 10 4 t/km 2 F represents the resource abundance influence factor of the zone to be detected, and is dimensionless.
5. The method as claimed in claim 1, wherein before determining the similarity coefficients between the zone to be measured in the work area and the various reference zones among the plurality of types of reference zones, respectively, comprising:
and classifying all types of reference zones in the work area according to preset requirements to obtain multiple types of reference zones.
6. The method as claimed in claim 1, wherein the similarity coefficient between the zone to be measured in the work area and each of the plurality of types of reference zones is determined according to the following formula:
wherein, L (j) represents the similarity between all the geological parameters in the zone to be detected and the jth reference zone, and the unit is as follows: percent, A (i) represents the quantized value of the ith geological parameter in the zone to be measured, and is dimensionless, m represents the total number of the geological parameters, B (j) (i) represents the quantized value of the ith geological parameter in the jth reference zone, and is dimensionless, i >0, j > < 0, m > < 0.
7. The method according to claim 1, wherein after calculating the abundance of the petroleum resources of the zone to be measured, the method further comprises:
and carrying out exploration, production and deployment on the zone to be detected according to the abundance of the petroleum resources in the zone to be detected.
8. An apparatus for determining the abundance of a petroleum resource, comprising:
the coefficient determining module is used for respectively determining similarity coefficients between the zone to be detected in the work area and various reference zones in the multiple types of reference zones;
the zone determining module is used for selecting the maximum value in the determined similarity coefficients and taking the reference zone corresponding to the maximum value as an analog zone;
the threshold value judging module is used for judging whether the maximum value meets a preset threshold value or not;
the influence factor determining module is used for calculating and obtaining a resource abundance influence factor of the zone to be measured on the basis of the geological parameters of the analogy zone and the geological parameters of the zone to be measured under the condition that the maximum value meets the preset threshold value;
and the resource abundance determining module is used for calculating the petroleum resource abundance of the zone to be detected according to the resource abundance influence factor of the zone to be detected and the petroleum resource abundance of the analogy zone.
9. The apparatus as recited in claim 8, wherein geological parameters of said analogy zone comprise at least one of: the oil supply per unit area of the analog zone, the percentage of the enclosed area of the analog zone to the zone area, the average enclosed height of the analog zone, and the average reservoir porosity of the analog zone, and the geological parameters of the zone to be measured include at least one of: the oil supply of the area to be measured in unit area, the percentage of the enclosed area of the area to be measured in the area of the area to be measured, the average enclosed height of the area to be measured and the average reservoir porosity of the area to be measured.
10. The apparatus as claimed in claim 9, wherein the influence factor determining module is specifically configured to calculate the resource abundance influence factor of the to-be-detected band according to the following formula:
wherein f represents the resource abundance influence factor of the zone to be detected, dimensionless, Q play /S play And the unit area oil supply of the zone to be measured is represented as follows: 10 4 t/km 2 ，Q cal /S cal The unit area oil supply amount of the analog zone is expressed by the following unit: 10 4 t/km 2 ，p play And the percentage of the enclosed area in the zone to be detected to the area of the zone is expressed as follows: % h play And the average closure height of the trap in the zone to be measured is expressed by the unit: m, p cal Representing the trap plane in the analog bandThe percentage of the area of the zone is calculated as: % h cal Represents the trap average closure height in the analog band in units of: m, phi play Representing the average reservoir porosity in the analog zone in units of: % phi, phi cal Representing the average porosity of the reservoir in the analog zone in units of: %.
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