CN107689013B - Method and device for correcting evaluation parameters before drilling of trap resource amount - Google Patents
Method and device for correcting evaluation parameters before drilling of trap resource amount Download PDFInfo
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Abstract
The invention provides a method for correcting evaluation parameters before drilling of a captive resource amount, which comprises the following steps: acquiring the predicted trap resource amount before drilling and the found trap resource amount after drilling; judging whether the trap resource amount after drilling falls within the range from P10 to P90 of the predicted trap resource amount before drilling to obtain a judgment result; and correcting the pre-drilling evaluation parameters of the trap resource amount according to the judgment result, wherein the pre-drilling predicted trap resource amount is obtained by calculating the pre-drilling evaluation parameters. The trap resource amount before drilling and after drilling are compared, and the evaluation parameters before drilling of the trap resource amount are corrected to guide the prediction of the trap resource amount or reserve in the area in the future, so that the more scientific, reliable and practical trap resource amount or reserve can be generated, an effective decision basis and basis are provided for the trap evaluation and the pre-exploration well deployment of oil companies, the evaluation standard of the trap resource amount is perfected, the exploration risk is reduced, and the decision level is improved.
Description
Technical Field
The invention relates to the technical field of oil-gas exploration, in particular to a method and a device for correcting pre-drilling evaluation parameters of a captive resource amount.
Background
Trap is usually the smallest geological unit for carrying out drilling tasks in the process of oil and gas pre-exploration, and post-drilling evaluation is one of the important key links for improving the oil and gas exploration level and accelerating oil and gas discovery. The evaluation parameters of the trap resource amount (parameters participating in the calculation of the trap resource amount) are evaluated after drilling, aiming at the evaluation before drilling, the evaluation parameters participating in the calculation of the trap resource amount are analyzed systematically and objectively according to the discovery and display condition of oil gas of drilling trap, and are compared with the evaluation parameters participating in the calculation of the trap resource amount determined in the drilling decision, so that the difference change is found out, the selection model of the evaluation parameters of the trap resource amount is further improved, and the prediction level of the trap resource amount or reserve amount is improved.
At present, the trap is usually directly transferred to the next-stage exploration and evaluation after the trap pre-exploration, and the pre-drilling-post-drilling quantitative comparison analysis is rarely carried out on trap resource quantity evaluation parameters, so that the experience teaching and training cannot be well summarized and the production requirements of the next-stage exploration cannot be guided.
Disclosure of Invention
The invention provides a method and a device for correcting pre-drilling evaluation parameters of a captive resource amount, which are used for solving the problem that the actual data is not utilized to correct the pre-drilling evaluation parameters in the exploration process in the prior art so as to guide the subsequent exploration process.
The invention provides a method for correcting evaluation parameters before drilling of a captive resource amount, which comprises the following steps:
acquiring the predicted trap resource amount before drilling and the found trap resource amount after drilling;
judging whether the trap resource amount after drilling is in the range from P10 to P90 of the predicted trap resource amount before drilling to obtain a judgment result, wherein P10 means that the predicted trap resource amount before drilling is at least 10% reliable; p90 indicates that the predicted amount of trap resources before drilling is at least 90% reliable;
and correcting the pre-drilling evaluation parameters of the trap resource amount according to the judgment result, wherein the pre-drilling predicted trap resource amount is obtained by calculating the pre-drilling evaluation parameters.
Further, correcting the pre-drilling evaluation parameters of the trap resource amount according to the judgment result specifically comprises:
if the judgment result is negative, acquiring pre-drilling evaluation parameters and post-drilling evaluation parameters related to the trap resource amount;
calculating the ratio of the pre-drilling evaluation parameter to the post-drilling evaluation parameter, and solving the natural logarithm of the ratio to obtain a deviation coefficient;
and when the deviation coefficient is not equal to 0, adjusting the evaluation parameters before drilling.
Further, correcting the pre-drilling evaluation parameters of the trap resource amount according to the judgment result specifically comprises:
if the judgment result is negative, acquiring a plurality of trapped resource quantity pre-drilling evaluation parameters and corresponding post-drilling evaluation parameters;
for each pre-drilling evaluation parameter and corresponding post-drilling evaluation parameter, calculating the ratio of the pre-drilling evaluation parameter to the corresponding post-drilling evaluation parameter, and solving the natural logarithm of the ratio to obtain a calculation result;
calculating an arithmetic mean value of the plurality of calculation results to obtain a deviation coefficient;
and when the deviation coefficient is not equal to 0, adjusting the evaluation parameters before drilling.
Further, when the deviation coefficient is not equal to 0, adjusting the pre-drilling evaluation parameter specifically includes:
when the deviation coefficient is less than 0, the value of the pre-drilling evaluation parameter is increased;
and when the deviation coefficient is larger than 0, adjusting the value of the pre-drilling evaluation parameter to be small.
Furthermore, the method also comprises the step of drawing the deviation coefficients into a histogram in a rectangular coordinate system with the evaluation parameter type as a horizontal axis and the deviation coefficients as a vertical axis.
Another aspect of the present invention provides a device for correcting pre-drilling evaluation parameters of a captive resource amount, including:
the acquisition module is used for acquiring the predicted trap resource amount before drilling and the found trap resource amount after drilling;
the judging module is used for judging whether the trap resource amount after drilling is found to be in the range from P10 to P90 of the predicted trap resource amount before drilling so as to obtain a judgment result, wherein P10 means that the predicted trap resource amount before drilling is at least 10% reliable; p90 indicates that the predicted amount of trap resources before drilling is at least 90% reliable;
and the correction module is used for correcting the pre-drilling evaluation parameters of the trap resource amount according to the judgment result, wherein the pre-drilling predicted trap resource amount is obtained by calculating the pre-drilling evaluation parameters.
Further, the correction module specifically includes:
the first correction submodule is used for acquiring pre-drilling evaluation parameters and post-drilling evaluation parameters of the trap resource quantity;
the second correction submodule is used for calculating the ratio of the pre-drilling evaluation parameter to the post-drilling evaluation parameter and solving the natural logarithm of the ratio to obtain a deviation coefficient;
and the third correction submodule is used for adjusting the pre-drilling evaluation parameter when the deviation coefficient is not equal to 0.
Further, the correction module specifically includes:
the fourth correction submodule is used for acquiring the pre-drilling evaluation parameters and the corresponding post-drilling evaluation parameters of the trapped resource quantities;
the fifth correction submodule is used for calculating the ratio of each pre-drilling evaluation parameter to the corresponding post-drilling evaluation parameter for each pre-drilling evaluation parameter and corresponding post-drilling evaluation parameter, and solving the natural logarithm of the ratio to obtain a calculation result;
a sixth correction submodule for calculating an arithmetic mean of the plurality of calculation results to obtain a deviation coefficient;
and the third correction submodule is used for adjusting the pre-drilling evaluation parameter when the deviation coefficient is not equal to 0.
Further, the third correction submodule is specifically configured to:
when the deviation coefficient is less than 0, the value of the pre-drilling evaluation parameter is increased;
and when the deviation coefficient is larger than 0, adjusting the value of the pre-drilling evaluation parameter to be small.
The device further comprises a drawing module for drawing the deviation coefficient into a histogram in a rectangular coordinate system with the evaluation parameter type as a horizontal axis and the deviation coefficient as a vertical axis.
The method and the device for correcting the pre-drilling evaluation parameters of the trap resource amount acquire the predicted trap resource amount before drilling and the found trap resource amount after drilling; and judging whether the trap resource amount after drilling falls within the range from P10 to P90 of the predicted trap resource amount before drilling to obtain a judgment result, and correcting the evaluation parameters before drilling of the trap resource amount according to the judgment result. The method adopts a risk analysis technology (for example, judging whether the trap resource amount after drilling falls within the range from P10 to P90 of the trap resource amount before drilling) and corrects the pre-drilling evaluation parameters of the trap resource amount by comparing the trap resource amount before drilling and after drilling so as to guide the prediction of the trap resource amount or reserve in the area in future, thereby generating more scientific, reliable and practical trap resource amount or reserve, providing effective decision basis and basis for the trap evaluation and the pre-exploration well deployment of oil companies, further perfecting the evaluation standard of the trap resource amount, reducing exploration risks and improving the decision level.
Drawings
The invention will be described in more detail hereinafter on the basis of embodiments and with reference to the accompanying drawings. Wherein:
fig. 1 is a schematic flowchart of a method for calibrating pre-drilling evaluation parameters of trap resource amount according to a first embodiment of the present invention;
FIG. 2 is a flowchart illustrating a calibration method for pre-drilling evaluation parameters of the trapping resource amount according to a second embodiment of the present invention;
fig. 3 is a schematic flow chart illustrating a calibration method of pre-drilling evaluation parameters of the trap resource amount according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a device for correcting pre-drilling evaluation parameters of trap resource amount according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a device for correcting pre-drilling evaluation parameters of trap resource amount according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a device for correcting pre-drilling evaluation parameters of trap resource amount according to a fifth embodiment of the present invention.
In the drawings, like parts are provided with like reference numerals. The figures are not drawn to scale.
Detailed Description
The invention will be further explained with reference to the drawings.
Example one
Fig. 1 is a schematic flowchart of a method for calibrating pre-drilling evaluation parameters of trap resource amount according to a first embodiment of the present invention; as shown in fig. 1, the present embodiment provides a method for correcting pre-drilling evaluation parameters of a captive resource amount, including:
Specifically, the trap resource amount is predicted before drilling, that is, the predicted trap resource amount, and the actual trap resource amount obtained after the trap is found after drilling, that is, after exploration is performed on the trap.
Specifically, whether the trap resource amount after drilling is found to fall within the range from P10 to P90 of the trap resource amount measured before drilling is judged, if yes, the predicted trap resource amount before drilling is reasonable, and if not, the prediction is unreasonable. P90 means that the predicted first round-trip resource amount before drilling has at least 90% reliability, and the probability that the first round-trip resource amount has 90% is reached; p10 indicates that the predicted amount of the second trap resource before drilling is at least 10% reliable, with a probability of 10% for the second trap resource amount.
And 103, correcting the pre-drilling evaluation parameters of the trap resource amount according to the judgment result, wherein the pre-drilling predicted trap resource amount is obtained by calculating the pre-drilling evaluation parameters.
Specifically, the pre-drilling predicted trap resource amount is obtained by performing a series of calculations on pre-drilling evaluation parameters of the trap resource amount, specifically, a calculation method in the prior art can be adopted, and the pre-drilling evaluation parameters are parameters for obtaining the pre-drilling predicted trap resource amount. If the difference between the predicted amount of trap resources before drilling and the amount of trap resources after drilling is large and falls outside the allowable range, and if the amount of trap resources after drilling falls outside the range from P10 to P90 of the predicted amount of trap resources before drilling, it is indicated that the error between the predicted amount of trap resources (the predicted amount of trap resources before drilling) and the actually found amount of trap resources (the amount of trap resources after drilling) is too large, and each parameter for calculating the predicted amount of trap resources needs to be corrected to guide the prediction of the amount of trap resources or reserves in the area in the future, so that more scientific, reliable and fit actual amount of trap resources or reserves can be generated.
According to the calibration method for the pre-drilling evaluation parameters of the trap resource amount, the predicted trap resource amount before drilling and the found trap resource amount after drilling are obtained; and judging whether the trap resource amount after drilling falls within the range from P10 to P90 of the predicted trap resource amount before drilling to obtain a judgment result, and correcting the evaluation parameters before drilling of the trap resource amount according to the judgment result. The method adopts a risk analysis technology (for example, judging whether the trap resource amount after drilling falls within the range from P10 to P90 of the trap resource amount before drilling) and corrects the pre-drilling evaluation parameters of the trap resource amount by comparing the trap resource amount before drilling and after drilling so as to guide the prediction of the trap resource amount or reserve in the future, thereby generating more scientific, reliable and practical trap resource amount or reserve, providing effective decision basis and basis for the trap evaluation and the pre-exploration well deployment of oil companies, further perfecting the evaluation standard of the trap resource amount, reducing exploration risks and improving the decision level.
Example two
This embodiment is a supplementary explanation based on the above embodiment.
FIG. 2 is a flowchart illustrating a calibration method for pre-drilling evaluation parameters of the trapping resource amount according to a second embodiment of the present invention; as shown in fig. 2, the present embodiment provides a method for correcting pre-drilling evaluation parameters of a circled resource amount, including:
The steps 101 to 102 can be referred to the corresponding description in the first embodiment.
And step 1031, if the judgment result is negative, turning to step 1032.
Specifically, if the difference between the predicted amount of trap resources before drilling and the amount of trap resources after drilling is large and falls outside the allowable range, and if the amount of trap resources after drilling falls outside the range from P10 to P90 of the predicted amount of trap resources before drilling, it is described that the error between the predicted amount of trap resources (predicted amount of trap resources before drilling) and the actual amount of trap resources (found amount of trap resources after drilling) is too large, and it is necessary to correct each parameter for calculating the predicted amount of trap resources.
And step 1032, acquiring pre-drilling evaluation parameters and post-drilling evaluation parameters of the trap resource amount.
Specifically, the pre-drilling evaluation parameter is a parameter for estimating the trap resource amount, and the post-drilling evaluation parameter is a parameter for calculating the trap resource amount obtained according to actual conditions after exploration of the trap.
And 1033, calculating a ratio of the pre-drilling evaluation parameter to the post-drilling evaluation parameter, and solving a natural logarithm of the ratio to obtain a deviation coefficient.
Specifically, in order to determine the degree of deviation of the pre-drilling evaluation parameter of the entrapment resource amount from the actual value, the pre-drilling evaluation parameter of the entrapment resource amount and the post-drilling evaluation parameter need to be compared. And in order to more intuitively compare the deviation degrees of the evaluation parameters, calculating the ratio of the pre-drilling evaluation parameters to the post-drilling evaluation parameters, calculating the natural logarithm of the ratio, and putting the pre-drilling ratio and the post-drilling ratio of the evaluation parameters in the range of-1 to 1, so that the deviation degrees of the evaluation parameters are conveniently compared, and the pre-drilling evaluation parameters causing large estimation errors of the trap resource amount are further identified so as to be corrected.
And 1034, when the deviation coefficient is not equal to 0, adjusting the evaluation parameters before drilling.
Specifically, when the deviation coefficient is not equal to 0, it is indicated that the pre-drilling evaluation parameter is not equal to the post-drilling evaluation parameter, the pre-drilling evaluation parameter has an error, and the pre-drilling evaluation parameter needs to be adjusted to better adapt to the actual trap condition.
Further, step 1034 specifically includes:
when the deviation coefficient is less than 0, the value of the pre-drilling evaluation parameter is increased;
and when the deviation coefficient is larger than 0, adjusting the value of the pre-drilling evaluation parameter to be small.
Specifically, when the deviation coefficient is less than 0, it is indicated that the pre-drilling evaluation parameter is smaller than the post-drilling evaluation parameter, and the value of the pre-drilling evaluation parameter needs to be increased; when the deviation coefficient is larger than 0, the pre-drilling evaluation parameter is larger than the post-drilling evaluation parameter, the value of the pre-drilling evaluation parameter needs to be adjusted to be smaller, and the pre-drilling evaluation parameter can be close to the actual situation of trapping as much as possible by adjusting the pre-drilling evaluation parameter, so that the finally calculated pre-drilling trapping resource amount is closer to the actual situation. If enough trapped resource quantity pre-drilling evaluation parameters and enough trapped resource quantity post-drilling evaluation parameters are obtained in the area, and are compared and corrected, the trapped resource quantity or reserve prediction of the area in the future can be guided, so that the calculated trapped resource quantity or reserve in the future is more accurate.
In the method for correcting the pre-drilling evaluation parameter of the trap resource amount provided in this embodiment, the obtained post-drilling evaluation parameter is used as a reference, and the pre-drilling evaluation parameter is adjusted so that the pre-drilling evaluation parameter is closer to the actual trap situation.
EXAMPLE III
This embodiment is a supplementary explanation based on the above embodiment.
Fig. 3 is a schematic flow chart illustrating a calibration method of pre-drilling evaluation parameters of the trap resource amount according to a third embodiment of the present invention; as shown in fig. 3, the present embodiment provides a method for correcting pre-drilling evaluation parameters of a circled resource amount, including:
102, judging whether the amount of the trap resource after drilling is in the range from P10 to P90 of the predicted amount of the trap resource before drilling to obtain a judgment result, wherein P10 means that the predicted amount of the trap resource before drilling is at least 10% reliable; p90 indicates that the predicted amount of trap resources before drilling is at least 90% reliable.
The steps 101 to 102 can be referred to the corresponding description in the first embodiment.
Step 1032', a plurality of enclosed resource amount pre-drilling evaluation parameters and corresponding post-drilling evaluation parameters are obtained.
Specifically, a plurality of values are obtained for each pre-drilling evaluation parameter, and if a plurality of trapped pre-drilling evaluation parameter values can be obtained, a plurality of values can also be obtained for the corresponding post-drilling evaluation parameter by this method.
And 1033', calculating the ratio of each pre-drilling evaluation parameter to the corresponding post-drilling evaluation parameter for each pre-drilling evaluation parameter and corresponding post-drilling evaluation parameter, and calculating the natural logarithm of the ratio to obtain a calculation result.
Specifically, the ratio of each pre-drilling evaluation parameter to the corresponding post-drilling evaluation parameter is calculated, the natural logarithm is calculated according to the ratio, and a plurality of ratios should be provided for the same pre-drilling evaluation parameter and the same post-drilling evaluation parameter because a plurality of pre-drilling evaluation parameters exist.
Step 1034' finds an arithmetic mean of the multiple calculations to obtain a deviation factor.
Specifically, since there are a plurality of pre-drilling evaluation parameters, there are a plurality of calculation results for the same pre-drilling evaluation parameter and post-drilling evaluation parameter, and after an arithmetic mean is obtained for the plurality of calculation results, the obtained value is used as a deviation coefficient.
In step 1035', when the deviation factor is not equal to 0, the pre-drill evaluation parameter is adjusted.
This step is identical to step 1034, and the details of step 1034 can be referred to.
Example four
The present embodiment is an apparatus embodiment, and is configured to perform the method in the first embodiment.
Fig. 4 is a schematic structural diagram of a calibration apparatus for pre-drilling evaluation parameters of a captive resource amount according to a fourth embodiment of the present invention, and as shown in fig. 4, the present embodiment provides a calibration apparatus for pre-drilling evaluation parameters of a captive resource amount, including: an acquisition module 201, a judgment module 202 and a correction module 203.
The acquiring module 201 is configured to acquire the predicted trap resource amount before drilling and the found trap resource amount after drilling;
a determining module 202, configured to determine whether the trapped resource amount after drilling is found to fall within a range from P10 to P90 of the predicted trapped resource amount before drilling, so as to obtain a determination result, where P10 indicates that the predicted trapped resource amount before drilling has at least 10% reliability; p90 indicates that the predicted amount of trap resources before drilling is at least 90% reliable;
and the correcting module 203 is configured to correct the pre-drilling evaluation parameter of the trap resource amount according to the judgment result, wherein the pre-drilling predicted trap resource amount is obtained by calculating the pre-drilling evaluation parameter.
The present embodiment is an embodiment of the apparatus of the first embodiment, and specific reference may be made to the description of the first embodiment, which is not repeated herein.
EXAMPLE five
This embodiment is a supplementary explanation based on the fourth embodiment.
Fig. 5 is a schematic structural diagram of a calibration apparatus for pre-drilling evaluation parameters of a trap resource amount according to a fifth embodiment of the present invention, and as shown in fig. 5, the calibration module 203 specifically includes: a first correction submodule 2031, a second correction submodule 2032, and a third correction submodule 2033.
The first correction submodule 2031 is configured to obtain a pre-drilling evaluation parameter and a post-drilling evaluation parameter of the trap resource amount; a second corrector submodule 2032, configured to calculate a ratio of the pre-drilling evaluation parameter to the post-drilling evaluation parameter, and solve a natural logarithm for the ratio to obtain a deviation coefficient; the third correction submodule 2033 is configured to adjust the pre-drill evaluation parameter when the deviation coefficient is not equal to 0.
The third correction submodule 2033 is specifically configured to:
when the deviation coefficient is less than 0, the value of the pre-drilling evaluation parameter is increased;
and when the deviation coefficient is larger than 0, adjusting the value of the pre-drilling evaluation parameter to be small.
Further, the calibration apparatus for evaluation parameters before drilling of the trapping resource amount further includes a drawing module 204, configured to draw the deviation coefficients into a histogram in a rectangular coordinate system with the evaluation parameter type as a horizontal axis and the deviation coefficients as a vertical axis. The deviation coefficient is drawn into a histogram, so that the deviation degree of each pre-drilling evaluation parameter can be checked more intuitively.
The present embodiment is an embodiment of the apparatus of the second embodiment, and specific reference may be made to the description of the second embodiment, which is not repeated herein.
EXAMPLE six
This embodiment is a supplementary explanation based on the fourth embodiment.
Fig. 6 is a schematic structural diagram of a calibration apparatus for pre-drilling evaluation parameters of a trap resource amount according to a fifth embodiment of the present invention, and as shown in fig. 6, the calibration module 203 specifically includes: a fourth correction sub-module 2031 ', a fifth correction sub-module 2032 ', a sixth correction sub-module 2033 ', and a third correction sub-module 2033.
The fourth correction submodule 2031' is configured to obtain pre-drilling evaluation parameters and corresponding post-drilling evaluation parameters of the trapped resource quantities; the fifth correction submodule 2032' is configured to calculate, for each pre-drilling evaluation parameter and corresponding post-drilling evaluation parameter, a ratio of the pre-drilling evaluation parameter to the corresponding post-drilling evaluation parameter, and solve a natural logarithm of the ratio to obtain a calculation result; a sixth correction submodule 2033' for calculating an arithmetic mean of the plurality of calculation results to obtain a deviation coefficient; the third correction submodule 2033 is configured to adjust the pre-drill evaluation parameter when the deviation coefficient is not equal to 0.
Further, the third sub-module 2033 is specifically configured to:
when the deviation coefficient is less than 0, the value of the pre-drilling evaluation parameter is increased;
and when the deviation coefficient is larger than 0, adjusting the value of the pre-drilling evaluation parameter to be small.
Further, the calibration apparatus for evaluation parameters before drilling of the trapping resource amount further includes a drawing module 204, configured to draw the deviation coefficient into a histogram in a rectangular coordinate system with the evaluation parameter type as a horizontal axis and the deviation coefficient as a vertical axis.
The present embodiment is an embodiment of an apparatus of the third embodiment of the method, and specific reference may be made to the description in the third embodiment, which is not described herein again.
While the invention has been described with reference to a preferred embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, the technical features mentioned in the embodiments can be combined in any way as long as there is no structural conflict. It is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (6)
1. A method for correcting evaluation parameters before drilling of a circled resource amount is characterized by comprising the following steps:
acquiring the pre-drilling predicted trap resource amount and the post-drilling found trap resource amount, wherein the pre-drilling predicted trap resource amount comprises a pre-drilling predicted first trap resource amount P90 and a pre-drilling predicted second trap resource amount P10, the pre-drilling predicted first trap resource amount P90 has at least 90% of reliability, and the pre-drilling predicted second trap resource amount P10 has at least 10% of reliability;
judging whether the trap resource amount after drilling falls within the range from the predicted first trap resource amount P90 before drilling to the predicted second trap resource amount P10 before drilling to obtain a judgment result;
correcting the pre-drilling evaluation parameters of the trap resource amount according to the judgment result, wherein the pre-drilling predicted trap resource amount is obtained by calculating the pre-drilling evaluation parameters, and correcting the pre-drilling evaluation parameters of the trap resource amount according to the judgment result comprises the following steps:
if the judgment result is negative, acquiring pre-drilling evaluation parameters and post-drilling evaluation parameters of the trap resource amount;
calculating the ratio of the pre-drilling evaluation parameter to the post-drilling evaluation parameter, and solving the natural logarithm of the ratio to obtain a deviation coefficient;
when the deviation coefficient is not equal to 0, adjusting the pre-drilling evaluation parameter, wherein when the deviation coefficient is less than 0, the value of the pre-drilling evaluation parameter is increased; and when the deviation coefficient is larger than 0, adjusting the value of the pre-drilling evaluation parameter to be small.
2. The method for correcting the pre-drilling evaluation parameters of the trap resource amount according to claim 1, wherein the step of correcting the pre-drilling evaluation parameters of the trap resource amount according to the judgment result specifically comprises the following steps:
if the judgment result is negative, acquiring a plurality of trapped resource quantity pre-drilling evaluation parameters and corresponding post-drilling evaluation parameters;
for each pre-drilling evaluation parameter and corresponding post-drilling evaluation parameter, calculating the ratio of the pre-drilling evaluation parameter to the corresponding post-drilling evaluation parameter, and solving the natural logarithm of the ratio to obtain a calculation result;
calculating an arithmetic mean value of the plurality of calculation results to obtain a deviation coefficient;
and when the deviation coefficient is not equal to 0, adjusting the evaluation parameters before drilling.
3. The method for correcting evaluation parameters before drilling of the amount of captive resources according to claim 2, further comprising plotting the deviation coefficients into a histogram in a rectangular coordinate system with the evaluation parameter type as a horizontal axis and the deviation coefficients as a vertical axis.
4. A device for correcting evaluation parameters before drilling of a captive resource amount is characterized by comprising:
the acquisition module is used for acquiring the predicted before-drilling trap resource amount and the found after-drilling trap resource amount, wherein the predicted before-drilling trap resource amount comprises a predicted first before-drilling trap resource amount P90 and a predicted second before-drilling trap resource amount P10, the predicted first before-drilling trap resource amount P90 has at least 90% of reliability, and the predicted second before-drilling trap resource amount P10 has at least 10% of reliability;
the judging module is used for judging whether the trap resource amount after drilling falls within the range from the predicted first trap resource amount P90 before drilling to the predicted second trap resource amount P10 before drilling so as to obtain a judgment result;
the correction module is used for correcting the pre-drilling evaluation parameters of the trap resource amount according to the judgment result, wherein the pre-drilling predicted trap resource amount is obtained by calculating the pre-drilling evaluation parameters; wherein, the correction module specifically includes:
the first correction submodule is used for acquiring pre-drilling evaluation parameters and post-drilling evaluation parameters of the trap resource quantity;
the second correction submodule is used for calculating the ratio of the pre-drilling evaluation parameter to the post-drilling evaluation parameter and solving the natural logarithm of the ratio to obtain a deviation coefficient;
the third correction submodule is used for adjusting the pre-drilling evaluation parameter when the deviation coefficient is not equal to 0, wherein the value of the pre-drilling evaluation parameter is increased when the deviation coefficient is less than 0; and when the deviation coefficient is larger than 0, adjusting the value of the pre-drilling evaluation parameter to be small.
5. The device for correcting the pre-drilling evaluation parameters of the trapping resource amount according to claim 4, wherein the correction module specifically comprises:
the fourth correction submodule is used for acquiring the pre-drilling evaluation parameters and the corresponding post-drilling evaluation parameters of the trapped resource quantities;
the fifth correction submodule is used for calculating the ratio of each pre-drilling evaluation parameter to the corresponding post-drilling evaluation parameter for each pre-drilling evaluation parameter and corresponding post-drilling evaluation parameter, and solving the natural logarithm of the ratio to obtain a calculation result;
a sixth correction submodule for calculating an arithmetic mean of the plurality of calculation results to obtain a deviation coefficient;
and the third correction submodule is used for adjusting the pre-drilling evaluation parameter when the deviation coefficient is not equal to 0.
6. The apparatus according to claim 5, further comprising a plotting module for plotting the deviation coefficients into a histogram in a rectangular coordinate system with the evaluation parameter type as the horizontal axis and the deviation coefficients as the vertical axis.
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