CN105089658B - Stratum contrast method and device based on uncertainty - Google Patents
Stratum contrast method and device based on uncertainty Download PDFInfo
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- CN105089658B CN105089658B CN201510379359.9A CN201510379359A CN105089658B CN 105089658 B CN105089658 B CN 105089658B CN 201510379359 A CN201510379359 A CN 201510379359A CN 105089658 B CN105089658 B CN 105089658B
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- G—PHYSICS
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V20/00—Geomodelling in general
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- G01V11/00—Prospecting or detecting by methods combining techniques covered by two or more of main groups G01V1/00 - G01V9/00
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- G01V2200/10—Miscellaneous details
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- G—PHYSICS
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
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- G01V2210/66—Subsurface modeling
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- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
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Abstract
The invention provides a stratum comparison method and a stratum comparison device based on uncertainty, wherein the stratum comparison method comprises the following steps: in the stratum contrast process, determining a plurality of possible contrast positions on a well with uncertain layering positions in a profile; assigning qualitative or quantitative certainty values to a plurality of said contrast locations; and respectively storing and displaying a plurality of contrast positions and the determination values thereof on the section as different layering schemes. According to the invention, by setting a plurality of position schemes for a certain stratum, all possibilities of the layering position judged by geologists can be recorded, and references are provided for comparison of other subsequent sections, closure of the whole layering scheme and quality control.
Description
Technical field
The present invention relates to the technology that Strata Comparison is carried out by uncertainty, more particularly to a kind of ground based on uncertainty
Layer control methods and device.
Background technology
Using log carry out Strata Comparison during, it will usually run into certain stratum certain mouthful of well layered position not
It is determined that or certain stratum position is inconsistent in excessively with the different sections of mouth well the problem of.It is in view of the above-mentioned problems, big in the prior art
First determine a layered position by rule of thumb more, then confirm when subsequent contrast or closure check.When stratum is more complicated, layering well
When number is huger, layered position multi-solution is stronger, tend to occur mistakes and omissions, repeatedly, even in subsequent checking process
Phenomena such as being difficult to closure, cause to be layered result reliability decline, further influence follow-up geological work.
The content of the invention
The embodiment of the present invention provides a kind of Strata Comparison method and device based on uncertainty, to record geological personnel institute
Judge all possibilities of layered position, for the contrasting of other follow-up sections, the closure of overall layered scheme and quality control carry
For reference.
To achieve the above object, it is described the embodiments of the invention provide a kind of Strata Comparison method based on uncertainty
Strata Comparison method include：
During Strata Comparison, multiple possible contrast positions are determined on the uncertain well of layered position in section；
Qualitative or quantitative determination angle value is assigned for multiple contrast positions；
Multiple contrast positions and its determination angle value as the storage respectively of different layered schemes and are shown
On the section.
In one embodiment, described Strata Comparison method also includes：When other sections are by the well, by the well
The contrast position and determination angle value are respectively displayed in current section.
In one embodiment, described Strata Comparison method also includes：Divide according to the modification of the comparing result of current section
The determination angle value of layered scheme.
In one embodiment, described Strata Comparison method also includes：According to new point of the comparing result of current section addition
Layered scheme simultaneously determines its determination angle value.
In one embodiment, after the Strata Comparison for completing all wells, according to degree of certainty of each layered scheme on well point
Value interpolation goes out degree of certainty flat distribution map.
In one embodiment, after the Strata Comparison for completing all wells, according to corresponding to the maximum determination angle value of each layering
Layered scheme interpolation goes out the most probable degree of certainty flat distribution map of the layering.
In one embodiment, after the completion of all wells closure, count in each layered scheme the average determination angle value of all wells or
The average maximum determination angle value of all wells in each layering.
To achieve these goals, the embodiment of the present invention also provides a kind of Strata Comparison device based on uncertainty, institute
The Strata Comparison device stated includes：
Position determination unit, it is multiple for being determined in section on the uncertain well of layered position during Strata Comparison
Possible contrast position；
Assignment unit, for assigning qualitative or quantitative determination angle value for multiple contrast positions；
Display unit, for the dividing as different layered schemes using multiple contrast positions and its determination angle value
Do not store and be shown on the section.
In one embodiment, described display unit is additionally operable to：When other sections are by the well, by described in the well
Contrast position and determination angle value are respectively displayed in current section.
In one embodiment, described Strata Comparison device also includes：Unit is changed, for the contrast knot according to current section
Fruit changes the determination angle value of the layered scheme.
In one embodiment, described Strata Comparison device also includes：Scheme adding device, for pair according to current section
New layered scheme is added than result and determines its determination angle value.
In one embodiment, described Strata Comparison device also includes：First interpolating unit, complete the stratum pair of all wells
Than afterwards, for going out degree of certainty flat distribution map according to determination angle value interpolation of each layered scheme on well point.
In one embodiment, described Strata Comparison device also includes：Second interpolating unit, complete the stratum pair of all wells
Than afterwards, going out the most probable degree of certainty of the layering for the layered scheme interpolation according to corresponding to the maximum determination angle value being each layered
Flat distribution map.
In one embodiment, described Strata Comparison device also includes：Statistic unit, after the completion of all wells closure, it is used for
The average maximum determination angle value of all wells in counting the average determination angle value of all wells in each layered scheme or being each layered.
The beneficial effect of the embodiment of the present invention is：
(1) by setting multiple location schemes to some stratum, it is able to record that geological personnel judges the institute of layered position
Being possible to property, for the contrasting of other follow-up sections, the closure of overall layered scheme and quality control provide reference.
(2) by setting accuracy value to each location schemes, can clearly with record the possibility size of each scheme, enter
One step facilitates the quality control to when overall layered scheme of follow-up section.
(3) by doing flat distribution map to the uncertainty of each layer, can quickly find contrast it is not true during the stratum
Qualitative higher well, make closure and quality control efforts more targeted, substantially increase closure efficiency.
(4) by recording the determination degrees of data in delaminating process, data base can be provided for final analysis of uncertainty
Plinth, so that the uncertainty quantified in Strata Comparison is possibly realized, solve that Strata Comparison uncertainty is difficult to quantify asks
Topic.
(5) by the Strata Comparison method of the present invention, can increase on a small quantity in delaminating process early stage on the premise of workload,
Secondary closure and the workload of quality control after a large amount of reductions, and make layering result more accurately and reliably, improve operating efficiency.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the Strata Comparison method flow diagram based on uncertainty of the embodiment of the present invention；
Fig. 2 is that the north-south of well 2 of crossing of the embodiment of the present invention connects well profile schematic diagram；
Fig. 3 is that the East and West direction of well 2 of crossing of the embodiment of the present invention connects well profile schematic diagram；
Fig. 4 is the degree of certainty plane distribution schematic diagram of 5 layers of B schemes 1 of the embodiment of the present invention；
Fig. 5 is the degree of certainty plane distribution schematic diagram of 5 layers of B schemes 2 of the embodiment of the present invention；
Fig. 6 is the average degree of certainty distribution histogram of each layer of the embodiment of the present invention；
Fig. 7 is the structured flowchart of the Strata Comparison device based on uncertainty of one embodiment of the invention；
Fig. 8 is the structured flowchart of the Strata Comparison device based on uncertainty of one embodiment of the invention；
Fig. 9 is the structured flowchart of the Strata Comparison device based on uncertainty of one embodiment of the invention；
Figure 10 is the structured flowchart of the Strata Comparison device based on uncertainty of one embodiment of the invention；
Figure 11 is the structured flowchart of the Strata Comparison device based on uncertainty of one embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
The embodiments of the invention provide a kind of Strata Comparison method based on uncertainty, as shown in figure 1, described stratum
Control methods includes：
S101：During Strata Comparison, multiple possible contrast positions are determined on the uncertain well of layered position in section
Put；
S102：Qualitative or quantitative determination angle value is assigned for multiple contrast positions.
During Strata Comparison, when run into certain well layered position it is uncertain when, can be set on the well several possible
Position is contrasted, while can be that each position assigns qualitative (such as high, medium and low) or quantitative (such as 10%, 50%, 80%) determination
Angle value.
S103：Using multiple contrast positions and its determination angle value as the storage respectively of different layered schemes simultaneously
It is shown on the section.
Flow as shown in Figure 1 is understood, during Strata Comparison, layered position is uncertain first in section by the present invention
Multiple possible contrast positions are determined on well, then qualitative or quantitative determination angle value is assigned for multiple contrast positions, finally will
It is multiple it is described contrast positions and its determine angle value respectively as different layered schemes storage respectively and be shown in the section
On.
After flow shown in Fig. 1, during Strata Comparison, typically also need to do other sections and analyzed, when it
, it is necessary to by the contrast position of well and determine angle value during uncertain by position in Fig. 1 well of its section (being referred to as current section)
It is respectively displayed in current section.
The comparing result of horizon compared is produced in current section, the present invention can repair according to the comparing result of current section
Change the determination angle value of layered scheme, new layered scheme can also be added according to the comparing result of current section and determines its determination
Angle value.
By doing multiple sections, the Strata Comparison to all wells can be completed, can be existed afterwards according to each layered scheme
Determination angle value interpolation on well point goes out degree of certainty flat distribution map., can also basis after completing to the Strata Comparison of all wells
Layered scheme interpolation corresponding to the maximum determination angle value being each layered goes out the most probable degree of certainty flat distribution map of the layering.
After above-mentioned interpolation goes out degree of certainty flat distribution map, it is poor (small degree of certainty can also to be found out according to flat distribution map
In a certain setting value, the setting value can determine as the case may be) well position, and cross the well do new company's well profile,
Further determine that its layered position and update corresponding degree of certainty, its flow of specific processing method as shown in Figure 1.
For have a variety of layered schemes and degree of certainty difference less and in follow-up closure and quality control efforts it is still difficult
With the layering of determination, can individually be analyzed as another set of possible layered scheme.
In one embodiment, after the completion of all well closures (same well is layered all suitable in all sections), it can count
The average of all wells maximum determines angle value in the average determination angle value of all wells or each layering in each layered scheme.
If in addition, to certain layer of degree of certainty that can not judge some scheme, the well can be crossed and do multiple even well profiles, cutd open each
Its most probable layered position is drawn on face, finally by count this layer each position occur frequency come automatically be each point
The degree of certainty assignment of layer position.
The embodiment of the Strata Comparison method based on uncertainty of the present invention is lifted in detail referring to the drawings
Example explanation.
Fig. 2 crosses the north-south of well 2 and connects well profile schematic diagram, as shown in Fig. 2 section sequentially passes through well 1, well 2, well from north orientation south
3 log Fig. 1,2,3.Assuming that three stratum, respectively 4 layers of A, 5 layers of B can be divided into according to set this section of curve of Stratigraphic framework
With 6 layers of C.Various regions in well 1 and well 3 can more clearly be determined according to gamma curve in log and the variation tendency of resistivity curve
4 layers of A and 6 layer of C position in layer and well 2.Its degree of certainty can directly be entered as 1 automatically without specially considering.And in well 2
5 layers of B, because the change of curve causes its position to have two kinds of layered schemes, and be difficult to determine which kind of layered scheme is more accurate.Cause
Degree of certainty 21 and 22 of the two layered schemes 51 and 52 in well 2 is manually entered as 0.5 and 0.5 by this respectively.
Fig. 3 is that the East and West direction for crossing well 2 of the embodiment of the present invention connects well profile schematic diagram；Section in Fig. 3 from West to East according to
Secondary log Fig. 2,7,8 through well 2, well 5 and well 8.According to well plots changes can regard as 5 near 5 layers of B in well 5
Layer B 52 layers of B2 scheme possibilities are bigger, therefore manually assign degree of certainty 71 and 72 of the two schemes 51 and 52 in well 5 respectively
It is worth for 0.1 and 0.9.Possibility of the 5 layers of B scheme 52 in well 2 equally can be predicted out with the log trend of well 5 should be more
Greatly, therefore manual amendment's degree of certainty 22 is 0.8, while reduces degree of certainty 21 as 0.2.
Fig. 4 is the degree of certainty plane distribution schematic diagram of 5 layers of B schemes 1 of the embodiment of the present invention.It is assumed that take 9 mouthfuls
Well presses position distribution in figure, and in addition to well shown in Fig. 2 and Fig. 3, other each wells are all 1 in the degree of certainty of each layer, then by most
Small curvature method interpolation can obtain the regularity of distribution of 51 layers of B1 schemes in the plane.51 layers of B1 side can be appreciated that by the distribution schematic diagram
The Uncertainty distribution situation of case, and the position of the rapid larger well 2 of positional uncertainty of energy and well 5.When research area's well number compared with
More, when layering multi-solution is stronger, the effect of the distribution map is especially prominent.
Fig. 5 is the degree of certainty plane distribution schematic diagram of 5 layers of B schemes 2 of the embodiment of the present invention.The uncertainty of 52 layers of B2 schemes
Distribution situation is equally provided by Fig. 5 degree of certainty plane distribution schematic diagram of layer B schemes 2.Under normal circumstances, between different wells mutually
The size of its uncertainty of the layered scheme of association also tends to unanimously.Therefore, if only considering 5 layers of B most probable scheme, can lead to
Cross and take 5 layers of B degree of certainty maximum to carry out Interpolation with Planar distribution map.
Fig. 6 is the average degree of certainty distribution histogram of each layer of the embodiment of the present invention.In figure 6, by each of all wells
Layer degree of certainty does average value, can intuitively show the uncertain size of each layer, and can filter out and probabilistic layering be present
Most probable layered scheme in scheme.
The embodiment of the present invention also provides a kind of Strata Comparison device based on uncertainty, as shown in fig. 7, described stratum
Contrast device includes：Position determination unit 701, assignment unit 702 and display unit 703.
During Strata Comparison, position determination unit 701 is more for being determined in section on the uncertain well of layered position
Individual possible contrast position.
Assignment unit 702 is used to assign qualitative or quantitative determination angle value for multiple contrast positions.
Display unit 703 is used for multiple contrast positions and its determines angle value as different layered schemes
Store and be shown on the section respectively.
In one embodiment, when other sections are by the well, display unit 703 is additionally operable to the contrast of the well
Position and determination angle value are respectively displayed in current section.
In one embodiment, as shown in figure 8, Strata Comparison device also includes：Change unit 801 and scheme adding device 802.
Change the determination angle value that unit 801 is used to change the layered scheme according to the comparing result of current section；Scheme adding device
802 are used to add new layered scheme according to the comparing result of current section and determine its determination angle value.
In one embodiment, as shown in figure 9, Strata Comparison device also includes：First interpolating unit 901.Complete all wells
Strata Comparison after, the first interpolating unit 901 can go out really according to determination angle value interpolation of each layered scheme on well point
Surely flat distribution map is spent.
In one embodiment, as shown in Figure 10, Strata Comparison device also includes：Second interpolating unit 1001.Complete to own
After the Strata Comparison of well, the second interpolating unit 1001 can according to be each layered it is maximum determine angle value corresponding to layered scheme
Interpolation goes out the most probable degree of certainty flat distribution map of the layering.
In one embodiment, as shown in figure 11, Strata Comparison device also includes：Statistic unit 1101.Closed in all wells
Cheng Hou, all wells during statistic unit 1101 is used to count the average determination angle value of all wells in each layered scheme or is each layered
Average maximum determine angle value.
The beneficial effect of the embodiment of the present invention is：
(1) by setting multiple location schemes to some stratum, it is able to record that geological personnel judges the institute of layered position
Being possible to property, for the contrasting of other follow-up sections, the closure of overall layered scheme and quality control provide reference.
(2) by setting accuracy value to each location schemes, can clearly with record the possibility size of each scheme, enter
One step facilitates the quality control to when overall layered scheme of follow-up section.
(3) by doing flat distribution map to the uncertainty of each layer, can quickly find contrast it is not true during the stratum
Qualitative higher well, make closure and quality control efforts more targeted, substantially increase closure efficiency.
(4) by recording the determination degrees of data in delaminating process, data base can be provided for final analysis of uncertainty
Plinth, so that the uncertainty quantified in Strata Comparison is possibly realized, solve that Strata Comparison uncertainty is difficult to quantify asks
Topic.
(5), can be in increase delaminating process early stage on a small quantity on the premise of workload, largely by the implementation of the inventive method
Secondary closure and the workload of quality control after reduction, and make layering result more accurately and reliably, improve operating efficiency.
It should be understood by those skilled in the art that, embodiments of the invention can be provided as method, system or computer program
Product.Therefore, the present invention can use the reality in terms of complete hardware embodiment, complete software embodiment or combination software and hardware
Apply the form of example.Moreover, the present invention can use the computer for wherein including computer usable program code in one or more
The computer program production that usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.
The present invention is the flow with reference to method according to embodiments of the present invention, equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that can be by every first-class in computer program instructions implementation process figure and/or block diagram
Journey and/or the flow in square frame and flow chart and/or block diagram and/or the combination of square frame.These computer programs can be provided
The processors of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for real
The device for the function of being specified in present one flow of flow chart or one square frame of multiple flows and/or block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Apply specific embodiment in the present invention to be set forth the principle and embodiment of the present invention, above example
Explanation be only intended to help understand the present invention method and its core concept；Meanwhile for those of ordinary skill in the art,
According to the thought of the present invention, there will be changes in specific embodiments and applications, in summary, in this specification
Appearance should not be construed as limiting the invention.
Claims (10)
- A kind of 1. Strata Comparison method based on uncertainty, it is characterised in that described Strata Comparison method includes：During Strata Comparison, multiple possible contrast positions are determined on the uncertain well of layered position in section；Qualitative or quantitative determination angle value is assigned for multiple contrast positions；Using multiple contrast positions and its determine angle value as the storage respectively of different layered schemes and including in institute State on section；After the Strata Comparison for completing all wells, degree of certainty is gone out according to determination angle value interpolation of each layered scheme on well point and put down Mapping；Or, after completing the Strata Comparison of all wells, according to layered scheme corresponding to the maximum determination angle value of each layering Interpolation goes out the most probable degree of certainty flat distribution map of the layering.
- 2. the Strata Comparison method according to claim 1 based on uncertainty, it is characterised in that described Strata Comparison Method also includes：When other sections are by the well, by the contrast position of the well and determine that angle value is respectively displayed on In current section.
- 3. the Strata Comparison method according to claim 2 based on uncertainty, it is characterised in that described Strata Comparison Method also includes：The determination angle value of the layered scheme is changed according to the comparing result of current section.
- 4. the Strata Comparison method based on uncertainty according to Claims 2 or 3, it is characterised in that described stratum Control methods also includes：New layered scheme is added according to the comparing result of current section and determines its determination angle value.
- 5. the Strata Comparison method according to claim 4 based on uncertainty, it is characterised in that all well closures are completed Afterwards, the average maximum degree of certainty of all wells in counting the average determination angle value of all wells in each layered scheme or being each layered Value.
- 6. a kind of Strata Comparison device based on uncertainty, it is characterised in that described Strata Comparison device includes：Position determination unit, during Strata Comparison, for determining multiple possibility on the uncertain well of layered position in section Contrast position；Assignment unit, for assigning qualitative or quantitative determination angle value for multiple contrast positions；Display unit, for using it is multiple it is described contrast positions and its determine angle value depositing respectively as different layered schemes Store up and be shown on the section；First interpolating unit, after the Strata Comparison of all wells is completed, for according to each layered scheme on well point really Determine angle value interpolation and go out degree of certainty flat distribution map；Or, second interpolating unit, after the Strata Comparison of all wells is completed, it is used for The most probable degree of certainty flat distribution map of the layering is gone out according to layered scheme interpolation corresponding to the maximum determination angle value of each layering.
- 7. the Strata Comparison device according to claim 6 based on uncertainty, it is characterised in that described display unit It is additionally operable to：When other sections are by the well, by the contrast position of the well and determine that angle value is respectively displayed on currently In section.
- 8. the Strata Comparison device according to claim 7 based on uncertainty, it is characterised in that described Strata Comparison Device also includes：Unit is changed, for changing the determination angle value of the layered scheme according to the comparing result of current section.
- 9. the Strata Comparison device based on uncertainty according to claim 7 or 8, it is characterised in that described stratum Contrast device also includes：Scheme adding device, for adding new layered scheme and determination according to the comparing result of current section Its determination angle value.
- 10. the Strata Comparison device according to claim 9 based on uncertainty, it is characterised in that described stratum pair Also include than device：Statistic unit, after the completion of all wells closure, for counting the average true of all wells in each layered scheme Determine the average maximum determination angle value of all wells in angle value or each layering.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510379359.9A CN105089658B (en) | 2015-07-01 | 2015-07-01 | Stratum contrast method and device based on uncertainty |
| GB1523055.0A GB2540228B (en) | 2015-07-01 | 2015-12-29 | Stratigraphic correlation method and apparatus based on uncertainty |
| US14/984,815 US20170002643A1 (en) | 2015-07-01 | 2015-12-30 | Stratigraphic Correlation Method And Apparatus Based on Uncertainty |
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| CN201510379359.9A CN105089658B (en) | 2015-07-01 | 2015-07-01 | Stratum contrast method and device based on uncertainty |
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| CN105089658B true CN105089658B (en) | 2018-04-06 |
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| US (1) | US20170002643A1 (en) |
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| CN107219564B (en) * | 2017-05-17 | 2019-08-06 | 中国石油天然气股份有限公司 | Method and device for processing vertical well connecting profile |
| CN107180161B (en) * | 2017-06-29 | 2020-04-24 | 中国石油天然气股份有限公司 | Stratum contrast result integration method and device |
| CN108828666B (en) * | 2018-08-07 | 2019-12-27 | 中国石油大学(华东) | Method for recovering buried history of stratum near normal fault |
| RU2730126C1 (en) * | 2019-12-19 | 2020-08-17 | Федеральное государственное бюджетное учреждение науки Федеральный научный центр "Владикавказский научный центр Российской академии наук" (ВНЦ РАН) | Method of compartmentalization geological sections of sedimentary strata |
| CN116122804A (en) * | 2023-02-02 | 2023-05-16 | 北京金阳普泰石油技术股份有限公司 | Stratum comparison method and system, computer equipment and storage medium |
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| GB2540228A (en) | 2017-01-11 |
| US20170002643A1 (en) | 2017-01-05 |
| CN105089658A (en) | 2015-11-25 |
| GB201523055D0 (en) | 2016-02-10 |
| GB2540228B (en) | 2017-05-10 |
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