CN104697959A - Method for calculating original organic matter abundance recovery coefficient - Google Patents
Method for calculating original organic matter abundance recovery coefficient Download PDFInfo
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- CN104697959A CN104697959A CN201310652232.0A CN201310652232A CN104697959A CN 104697959 A CN104697959 A CN 104697959A CN 201310652232 A CN201310652232 A CN 201310652232A CN 104697959 A CN104697959 A CN 104697959A
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Abstract
The invention provides a method for calculating original organic matter abundance recovery coefficient, which comprises the following steps: establishing a mathematical relationship between an organic matter-type hydrocarbon-generation rate G and a vitrinite reflectance Ro; calculating the relation of residual degradation rate Dc and the hydrocarbon-generation rate; when the original hydrocarbon-generation rate Gy is hypothesized as the hydrocarbon-generation rate when the vitrinite reflectance Ro equals 4, according to the relation between the hydrocarbon-generation rate G and the vitrinite reflectance Ro as well as the residual degradation rate Dc and the hydrocarbon-generation rate G, obtaining the relation of high-evolution hydrocarbon source rock original organic matter abundance recovery coefficient Rc and the vitrinite reflectance Ro; using the vitrinite reflectance Ro and conversion coefficient a of conversion from effective organic carbon to hydrocarbons to calculate the high-evolution hydrocarbon source rock original organic matter abundance recovery coefficient Rc, and recovering the high-evolution hydrocarbon source rock original organic matter abundance. The method has the obvious characteristics of less parameter and simple operation.
Description
Technical field
The present invention relates to primary organic material abundance and recover field, particularly relate to a kind of method calculating primary organic material abundance coefficient of restitution.
Background technology
In CARBONATE ROCKS IN THE SOUTHERN PART OF CHINA marine bed, stock number is enriched, and grows the large-scale hydrocarbon source rock of many covers.But these Thermal Evolution of Source Rocks degree are high, the vitrinite reflectance Ro of most of hydrocarbon source rock, more than 1.5%, is in the high ripe or post-mature stage.The organic matter of high thermal evolution hydrocarbon source rock has completed a large amount of life residence processes, the organic carbon content that mode is measured by experiment is at present completed the remaining organic carbon content after a large amount of life residence process, current organic matter loses hydrocarbon generation capacity substantially, and obvious remaining organic carbon content can not reflect the true quality of source rocks in high maturity.So the recovery of primary organic material abundance must be carried out to source rocks in high maturity, recover the original organic carbon content in its low mature stage, utilize original organic carbon content could carry out the accurate calculating of objective evaluation and life residence amount to source rocks in high maturity.This just relates to the problem that source rocks in high maturity primary organic material abundance coefficient of restitution is asked for, some scholars has been had to propose a series of relevant computing method for this problem, but these computing method, all need a large amount of high accuracy experiment data, in practical operation costly, some key parameter is difficult to obtain simultaneously.We have invented a kind of method of calculating primary organic material abundance coefficient of restitution newly for this reason, solve above technical matters.
Summary of the invention
The object of this invention is to provide a kind of when known hydrocarbon source rock parameter is less, the new method of estimation hydrocarbon source rock primary organic material abundance coefficient of restitution.
Object of the present invention realizes by following technical measures: the method calculating primary organic material abundance coefficient of restitution, the method of this calculating primary organic material abundance coefficient of restitution comprises: step 1, sets up the mathematical relation between the raw hydrocarbon rate G and vitrinite reflectance Ro of each organic matter type; Step 2, tries to achieve the relation between remaining degradation rate Dc and raw hydrocarbon rate G; Step 3, suppose original raw hydrocarbon rate Gy be vitrinite reflectance Ro equal 4 time raw hydrocarbon rate time, according to the relation between raw hydrocarbon rate G and vitrinite reflectance Ro and the relation between remaining degradation rate Dc and raw hydrocarbon rate G, draw the relation of source rocks in high maturity primary organic material abundance coefficient of restitution Rc and vitrinite reflectance Ro; And step 4, utilize vitrinite reflectance Ro and effective organic carbon to the transformation ratio a of the hydrocarbon conversion, try to achieve the primary organic material abundance coefficient of restitution Rc of source rocks in high maturity, the primary organic material abundance of source rocks in high maturity is recovered.
Object of the present invention also realizes by following technical measures:
This remaining degradation rate Dc with the pass of raw hydrocarbon rate G is:
D
c=(G
y-G)/(10a)
In formula, a is the transformation ratio of this effective organic carbon to hydro carbons.
In step 1, organic for I type, according to thermal simulation experiment result, the mathematical relation returned between this life hydrocarbon rate G and vitrinite reflectance Ro is:
As Ro < 0.5: G=0;
As 0.5≤Ro < 1.3: G=519Ln(Ro)+354;
As 1.3≤Ro < 4: G=11Ro+480.
In step 3, by G
ythink raw hydrocarbon rate during Ro=4, in conjunction with thermal degradation primary organic material abundance restoring method formula:
Rc=(1-D
c)/(1-D
y)
Obtain the relational expression between I type reconstruction of the organic matter abundance coefficients R c and vitrinite reflectance Ro:
When intermediate product is got rid of smooth and easy: Dy=60%
As Ro < 0.5: Rc=2.5-1.31/a
As 0.5≤Ro < 1.3: Rc=2.5-[0.43-1.3Ln (Ro)]/a
As 1.3≤Ro < 4: Rc=2.5-[0.11-0.03Ro]/a;
When intermediate product is not got rid of: Dy=35%
As Ro < 0.5: Rc=1.54-0.81/a
As 0.5≤Ro < 1.3: Rc=1.54-[0.26-0.8Ln (Ro)]/a
As 1.3≤Ro < 4: Rc=1.54-[0.07-0.02Ro]/a;
Wherein, Dy is original degradation rate.
In step 1, for II
1type is organic, and according to thermal simulation experiment result, the mathematical relation returned between this life hydrocarbon rate G and vitrinite reflectance Ro is:
As Ro < 0.5: G=0;
As 0.5≤Ro < 1.4: G=344Ln(Ro)+258;
As 1.4≤Ro < 4: G=10Ro+327.
In step 3, by G
ythink raw hydrocarbon rate during Ro=4, in conjunction with thermal degradation primary organic material abundance restoring method formula:
Rc=(1-D
c)/(1-D
y)
Obtain II
1relational expression between type reconstruction of the organic matter abundance coefficients R c and vitrinite reflectance Ro:
When intermediate product is got rid of smooth and easy: Dy=40%
As Ro < 0.5: Rc=1.67-0.61/a
As 0.5≤Ro < 1.4: Rc=1.67-[0.18-0.57Ln (Ro)]/a
As 1.4≤Ro < 4: Rc=1.67-[0.07-0.02Ro]/a;
When intermediate product is not got rid of: Dy=25%
As Ro < 0.5: Rc=1.33-0.49/a
As 0.5≤Ro < 1.4: Rc=1.33-[0.15-0.46Ln (Ro)]/a
As 1.4≤Ro < 4: Rc=1.33-[0.05-0.01Ro]/a;
Wherein, Dy is original degradation rate.
In step 1, for II
2type is organic, and according to thermal simulation experiment result, the mathematical relation returned between this life hydrocarbon rate G and vitrinite reflectance Ro is:
As Ro < 0.5: G=0;
As 0.5≤Ro < 1.6: G=158Ln(Ro)+122;
As 1.6≤Ro < 4: G=15Ro+162.
In step 3, by G
ythink raw hydrocarbon rate during Ro=4, in conjunction with thermal degradation primary organic material abundance restoring method formula:
Rc=(1-D
c)/(1-D
y)
Obtain II
2relational expression between type reconstruction of the organic matter abundance coefficients R c and vitrinite reflectance Ro: when intermediate product is got rid of smooth and easy: Dy=20%
As Ro < 0.5: Rc=1.25-0.28/a
As 0.5≤Ro < 1.6: Rc=1.25-[0.13-0.2Ln (Ro)]/a
As 1.6≤Ro < 4: Rc=1.25-[0.08-0.02Ro]/a;
When intermediate product is not got rid of: Dy=15%
As Ro < 0.5: Rc=1.18-0.26/a
As 0.5≤Ro < 1.6: Rc=1.18-[0.12-0.19Ln (Ro)]/a
As 1.6≤Ro < 4: Rc=1.18-[0.07-0.02Ro]/a;
Wherein, Dy is original degradation rate.
In step 1, organic for III type, according to thermal simulation experiment result, the mathematical relation returned between this life hydrocarbon rate G and vitrinite reflectance Ro is:
As Ro < 0.5: G=0;
As 0.5≤Ro < 1.8: G=75Ln(Ro)+51;
As 1.8≤Ro < 4: G=21Ro+54.
In step 3, by G
ythink raw hydrocarbon rate during Ro=4, in conjunction with thermal degradation primary organic material abundance restoring method formula:
Rc=(1-D
c)/(1-D
y)
Obtain the relational expression between III type reconstruction of the organic matter abundance coefficients R c and vitrinite reflectance Ro:
When intermediate product is got rid of smooth and easy: Dy=10%
As Ro < 0.5: Rc=1.11-0.12/a
As 0.5≤Ro < 1.8: Rc=1.11-[0.1-0.08Ln (Ro)]/a
As 1.8≤Ro < 4: Rc=1.11-[0.09-0.02Ro]/a;
When intermediate product is not got rid of: Dy=5%
As Ro < 0.5: Rc=1.05-0.11/a
As 0.5≤Ro < 1.8: Rc=1.05-[0.09-0.08Ln (Ro)]/a
As 1.8≤Ro < 4: Rc=1.05-[0.09-0.02Ro]/a;
Wherein, Dy is original degradation rate.
The method of the calculating primary organic material abundance coefficient of restitution in the present invention, primary organic material abundance mainly for the high stage of ripeness and post-mature stage hydrocarbon source rock is recovered, provide a kind of when known hydrocarbon source rock parameter is less, the new method of estimation source rocks in high maturity primary organic material abundance coefficient of restitution.The method is by thermal modeling test, relevant mathematical statistics and theoretical research, with thermal degradation primary organic material abundance restoring method for instructing thinking, define the mathematical formulae utilizing organic matter type and vitrinite reflectance to calculate source rocks in high maturity primary organic material abundance coefficient of restitution, by the foundation of the mathematical relation between hydrocarbons source rock parameter and vitrinite reflectance Ro, draw a kind of restoration methods simply utilizing source rocks in high maturity vitrinite reflectance to carry out source rocks in high maturity primary organic material abundance.The method method more in the past, has the distinguishing feature needing parameter few, simple to operation.The method be applied to middle Upper Yangtze Region upper Ordovician series Wufeng Formation source rock primary organic material abundance recover and life residence gauge calculation in, centering Upper Yangtze Region Wufeng Formation source rock has had more deep evaluation, and calculates the stock number of five peak groups accordingly.In the recovery of primary organic material abundance that the method can be applied to other source rocks in high maturity of marine strata in southern China and the calculating of stock number, particularly for the hydrocarbon source rock that those parameters are less, with the hydrocarbon source rock lacking a large amount of thermal modeling test, it is the hydrocarbon resources amount supplying method of accurate evaluation south China.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of a specific embodiment of the method for calculating primary organic material abundance coefficient of restitution of the present invention;
Fig. 2 is the curve map of I type organic matter hydrocarbon generation rate G and vitrinite reflectance Ro;
Fig. 3 is II
1the curve map of type organic matter hydrocarbon generation rate G and vitrinite reflectance Ro;
Fig. 4 is II
2the curve map of type organic matter hydrocarbon generation rate G and vitrinite reflectance Ro;
Fig. 5 is the curve map of III type organic matter hydrocarbon generation rate G and vitrinite reflectance Ro.
Embodiment
For making above and other object of the present invention, feature and advantage can become apparent, cited below particularly go out preferred embodiment, and coordinate institute's accompanying drawings, be described in detail below.
As shown in Figure 1, Fig. 1 is the process flow diagram of the method for calculating primary organic material abundance coefficient of restitution of the present invention.
In step 101, set up the mathematical relation between the raw hydrocarbon rate of each organic matter type and vitrinite reflectance.When raw hydrocarbon rate (G) refers to that Thermal Evolution of Source Rocks to a certain extent, every gram of organic carbon generates the quality of hydro carbons, and raw hydrocarbon rate is ever-increasing in thermal evolution process, the main impact being subject to organic matter type and thermal maturity two indices.The hydrocarbon source rock maximum raw hydrocarbon rate potential when prematurity is the original raw hydrocarbon rate (Gy) of hydrocarbon source rock.As shown in Fig. 2 to Fig. 5, the present invention, according to thermal simulation experiment result, has returned the mathematical relation (table 1) between the raw hydrocarbon rate of different organic matter type and vitrinite reflectance.
Relational expression between raw hydrocarbon rate (G) of each organic matter type of table 1 and vitrinite reflectance (Ro)
Flow process enters into step 102.
In step 102, shifted onto the relation obtained between remaining degradation rate and raw hydrocarbon rate by theory.Degradation rate (D) is the percentage that the effective organic carbon of raw hydrocarbon in hydrocarbon source rock accounts for hydrocarbon source rock total organic carbon, is divided into original degradation rate (Dy) and remaining degradation rate (Dc).Original degradation rate refer to the maximum potential degradation rate that hydrocarbon source rock has at mezzanine level, remaining degradation rate be Thermal Evolution of Source Rocks to a certain extent time remaining potential degradation rate.Original degradation rate is mainly by the impact of organic matter type, little with degree of ripeness relation.Remaining degradation rate is mainly subject to the two ore control of organic matter type and degree of ripeness, constantly reduces along with Thermal Evolution of Source Rocks.Derive and drawn the relation of remaining degradation rate and raw hydrocarbon rate:
D
c=(G
y-G)/(10a) (formula 1)
In formula, a is the transformation ratio of effective organic carbon to hydro carbons, generally about 1.22.
Flow process enters into step 103.
In step 103, suppose original raw hydrocarbon rate be vitrinite reflectance Ro equal 4 time raw hydrocarbon rate time, according to the relation between raw hydrocarbon rate and vitrinite reflectance and the relation between remaining degradation rate and raw hydrocarbon rate, draw the relation of source rocks in high maturity primary organic material abundance coefficient of restitution and vitrinite reflectance.If by G
ythink raw hydrocarbon rate during Ro=4, in conjunction with thermal degradation primary organic material abundance restoring method (formula 2), the relation between reconstruction of the organic matter abundance coefficients R c and vitrinite reflectance Ro can be obtained
Formula (table 2).
Rc=(1-D
c)/(1-D
y) (formula 2)
Table 2 different organic matter type reconstruction of the organic matter abundance coefficients R c and vitrinite reflectance Ro(%) relational expression
In step 104, utilize vitrinite reflectance and effective organic carbon to the transformation ratio of the hydrocarbon conversion, just in the hope of the primary organic material abundance coefficient of restitution of source rocks in high maturity, the primary organic material abundance of source rocks in high maturity can be recovered.Flow process terminates.
Claims (10)
1. calculate the method for primary organic material abundance coefficient of restitution, it is characterized in that, the method for this calculating primary organic material abundance coefficient of restitution comprises:
Step 1, sets up the mathematical relation between the raw hydrocarbon rate G and vitrinite reflectance Ro of each organic matter type;
Step 2, tries to achieve the relation between remaining degradation rate Dc and raw hydrocarbon rate G;
Step 3, suppose original raw hydrocarbon rate Gy be vitrinite reflectance Ro equal 4 time raw hydrocarbon rate time, according to the relation between raw hydrocarbon rate G and vitrinite reflectance Ro and the relation between remaining degradation rate Dc and raw hydrocarbon rate G, draw the relation of source rocks in high maturity primary organic material abundance coefficient of restitution Rc and vitrinite reflectance Ro; And
Step 4, utilizes vitrinite reflectance Ro and effective organic carbon to the transformation ratio a of the hydrocarbon conversion, tries to achieve the primary organic material abundance coefficient of restitution Rc of source rocks in high maturity, recover the primary organic material abundance of source rocks in high maturity.
2. the method for calculating primary organic material abundance coefficient of restitution according to claim 1, is characterized in that, this remaining degradation rate Dc with the pass of raw hydrocarbon rate G is:
D
c=(G
y-G)/(10a)
In formula a be in hydrocarbon source rock effective organic carbon to the transformation ratio of hydro carbons.
3. the method for calculating primary organic material abundance coefficient of restitution according to claim 2, is characterized in that, in step 1, organic for I type, according to thermal simulation experiment result, the mathematical relation returned between this life hydrocarbon rate G and vitrinite reflectance Ro is:
As Ro < 0.5: G=0;
As 0.5≤Ro < 1.3: G=519Ln(Ro)+354;
As 1.3≤Ro < 4: G=11Ro+480.
4. the method for calculating primary organic material abundance coefficient of restitution according to claim 3, is characterized in that, in step 3, by G
ythink raw hydrocarbon rate during Ro=4, in conjunction with thermal degradation primary organic material abundance restoring method formula:
Rc=(1-D
c)/(1-D
y)
Obtain the relational expression between I type reconstruction of the organic matter abundance coefficients R c and vitrinite reflectance Ro:
When intermediate product is got rid of smooth and easy: Dy=60%
As Ro < 0.5: Rc=2.5-1.31/a
As 0.5≤Ro < 1.3: Rc=2.5-[0.43-1.3Ln (Ro)]/a
As 1.3≤Ro < 4: Rc=2.5-[0.11-0.03Ro]/a;
When intermediate product is not got rid of: Dy=35%
As Ro < 0.5: Rc=1.54-0.81/a
As 0.5≤Ro < 1.3: Rc=1.54-[0.26-0.8Ln (Ro)]/a
As 1.3≤Ro < 4: Rc=1.54-[0.07-0.02Ro]/a;
Wherein, Dy is original degradation rate.
5. the method for calculating primary organic material abundance coefficient of restitution according to claim 2, is characterized in that, in step 1, for II
1type is organic, and according to thermal simulation experiment result, the mathematical relation returned between this life hydrocarbon rate G and vitrinite reflectance Ro is:
As Ro < 0.5: G=0;
As 0.5≤Ro < 1.4: G=344Ln(Ro)+258;
As 1.4≤Ro < 4: G=10Ro+327.
6. the method for calculating primary organic material abundance coefficient of restitution according to claim 5, is characterized in that, in step 3, by G
ythink raw hydrocarbon rate during Ro=4, in conjunction with thermal degradation primary organic material abundance restoring method formula:
Rc=(1-D
c)/(1-D
y)
Obtain II
1relational expression between type reconstruction of the organic matter abundance coefficients R c and vitrinite reflectance Ro:
When intermediate product is got rid of smooth and easy: Dy=40%
As Ro < 0.5: Rc=1.67-0.61/a
As 0.5≤Ro < 1.4: Rc=1.67-[0.18-0.57Ln (Ro)]/a
As 1.4≤Ro < 4: Rc=1.67-[0.07-0.02Ro]/a;
When intermediate product is not got rid of: Dy=25%
As Ro < 0.5: Rc=1.33-0.49/a
As 0.5≤Ro < 1.4: Rc=1.33-[0.15-0.46Ln (Ro)]/a
As 1.4≤Ro < 4: Rc=1.33-[0.05-0.01Ro]/a;
Wherein, Dy is original degradation rate.
7. the method for calculating primary organic material abundance coefficient of restitution according to claim 2, is characterized in that, in step 1, for II
2type is organic, and according to thermal simulation experiment result, the mathematical relation returned between this life hydrocarbon rate G and vitrinite reflectance Ro is:
As Ro < 0.5: G=0;
As 0.5≤Ro < 1.6: G=158Ln(Ro)+122;
As 1.6≤Ro < 4: G=15Ro+162.
8. the method for calculating primary organic material abundance coefficient of restitution according to claim 7, is characterized in that, in step 3, by G
ythink raw hydrocarbon rate during Ro=4, in conjunction with thermal degradation primary organic material abundance restoring method formula:
Rc=(1-D
c)/(1-D
y)
Obtain II
2relational expression between type reconstruction of the organic matter abundance coefficients R c and vitrinite reflectance Ro:
When intermediate product is got rid of smooth and easy: Dy=20%
As Ro < 0.5: Rc=1.25-0.28/a
As 0.5≤Ro < 1.6: Rc=1.25-[0.13-0.2Ln (Ro)]/a
As 1.6≤Ro < 4: Rc=1.25-[0.08-0.02Ro]/a;
When intermediate product is not got rid of: Dy=15%
As Ro < 0.5: Rc=1.18-0.26/a
As 0.5≤Ro < 1.6: Rc=1.18-[0.12-0.19Ln (Ro)]/a
As 1.6≤Ro < 4: Rc=1.18-[0.07-0.02Ro]/a;
Wherein, Dy is original degradation rate.
9. the method for calculating primary organic material abundance coefficient of restitution according to claim 2, is characterized in that, in step 1, organic for III type, according to thermal simulation experiment result, the mathematical relation returned between this life hydrocarbon rate G and vitrinite reflectance Ro is:
As Ro < 0.5: G=0;
As 0.5≤Ro < 1.8: G=75Ln(Ro)+51;
As 1.8≤Ro < 4: G=21Ro+54.
10. the method for calculating primary organic material abundance coefficient of restitution according to claim 9, is characterized in that, in step 3, by G
ythink raw hydrocarbon rate during Ro=4, in conjunction with thermal degradation primary organic material abundance restoring method formula:
Rc=(1-D
c)/(1-D
y)
Obtain the relational expression between III type reconstruction of the organic matter abundance coefficients R c and vitrinite reflectance Ro:
When intermediate product is got rid of smooth and easy: Dy=10%
As Ro < 0.5: Rc=1.11-0.12/a
As 0.5≤Ro < 1.8: Rc=1.11-[0.1-0.08Ln (Ro)]/a
As 1.8≤Ro < 4: Rc=1.11-[0.09-0.02Ro]/a;
When intermediate product is not got rid of: Dy=5%
As Ro < 0.5: Rc=1.05-0.11/a
As 0.5≤Ro < 1.8: Rc=1.05-[0.09-0.08Ln (Ro)]/a
As 1.8≤Ro < 4: Rc=1.05-[0.09-0.02Ro]/a;
Wherein, Dy is original degradation rate.
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| CN105181909A (en) * | 2015-10-19 | 2015-12-23 | 王文广 | Organic carbon recovery coefficient method based on oil-gas hydrocarbon generation-expulsion mechanism |
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| CN108426859A (en) * | 2018-02-23 | 2018-08-21 | 中国石油大学(华东) | A kind of reflectance of vitrinite prediction model based on overpressure retardation maturity of organic matter |
| CN109633122A (en) * | 2018-11-30 | 2019-04-16 | 中国海洋石油集团有限公司 | A kind of reflectance of vitrinite calibration method based on mathematical statistics |
| CN109709299A (en) * | 2018-11-16 | 2019-05-03 | 中国石油天然气股份有限公司 | A kind of organic carbon recovering coefficient evaluation method based on hydrocarbon source rock life residence rate |
| CN114199911A (en) * | 2020-08-27 | 2022-03-18 | 中国石油化工股份有限公司 | Method for recovering original organic matter abundance of argillaceous carbonate rock and application thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181909A (en) * | 2015-10-19 | 2015-12-23 | 王文广 | Organic carbon recovery coefficient method based on oil-gas hydrocarbon generation-expulsion mechanism |
| CN105181909B (en) * | 2015-10-19 | 2017-03-22 | 中国石油大学(华东) | Organic carbon recovery coefficient method based on oil-gas hydrocarbon generation-expulsion mechanism |
| CN105842753A (en) * | 2016-03-24 | 2016-08-10 | 中国石油大学(北京) | Method and device for recovering residual carbon content in hydrocarbon source rocks |
| CN105842753B (en) * | 2016-03-24 | 2018-04-27 | 中国石油大学(北京) | To the method and device that remaining organic carbon content is recovered in hydrocarbon source rock |
| CN108426859A (en) * | 2018-02-23 | 2018-08-21 | 中国石油大学(华东) | A kind of reflectance of vitrinite prediction model based on overpressure retardation maturity of organic matter |
| CN108426859B (en) * | 2018-02-23 | 2020-07-07 | 中国石油大学(华东) | Vitrinite reflectivity prediction model based on overpressure inhibition organic matter maturity |
| CN109709299A (en) * | 2018-11-16 | 2019-05-03 | 中国石油天然气股份有限公司 | A kind of organic carbon recovering coefficient evaluation method based on hydrocarbon source rock life residence rate |
| CN109709299B (en) * | 2018-11-16 | 2022-03-29 | 中国石油天然气股份有限公司 | Organic carbon recovery coefficient evaluation method based on hydrocarbon generation and expulsion rate of hydrocarbon source rock |
| CN109633122A (en) * | 2018-11-30 | 2019-04-16 | 中国海洋石油集团有限公司 | A kind of reflectance of vitrinite calibration method based on mathematical statistics |
| CN114199911A (en) * | 2020-08-27 | 2022-03-18 | 中国石油化工股份有限公司 | Method for recovering original organic matter abundance of argillaceous carbonate rock and application thereof |
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