CN105572321A - Method and apparatus for determining hydrocarbon expulsion rate of source rock - Google Patents

Method and apparatus for determining hydrocarbon expulsion rate of source rock Download PDF

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CN105572321A
CN105572321A CN201511009009.XA CN201511009009A CN105572321A CN 105572321 A CN105572321 A CN 105572321A CN 201511009009 A CN201511009009 A CN 201511009009A CN 105572321 A CN105572321 A CN 105572321A
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hydrocarbon
row
rate
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source rock
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CN105572321B (en
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郑民
王文广
李建忠
吴晓智
李鹏
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China Petroleum and Natural Gas Co Ltd
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    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
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Abstract

The invention provides a method and apparatus for determining hydrocarbon expulsion rate of source rock. The method comprises the steps of: acquiring the direct pressure semi-open semi-enclosed thermal simulation experimental data of the source rock to be analyzed; determining a first hydrocarbon expulsion rate data based on the thermal simulation experiment data; acquiring pyrolysis gas chromatography experimental data; according to the pyrolysis gas chromatography experimental data, conducting light hydrocarbon compensation on the first hydrocarbon expulsion rate to obtain a second hydrocarbon expulsion rate; and using the second hydrocarbon expulsion rate as the hydrocarbon expulsion rate of the source rock to be analyzed. The invention solves the technical problems of complicated method to determine the hydrocarbon expulsion of source rocks rate and low accuracy of the prior art, and achieves the technical effect of simple and accurate determination of hydrocarbon expulsion rate of the source rock.

Description

Determine the method and apparatus of hydrocarbon source rock row hydrocarbon rate
Technical field
The present invention relates to oil exploration technology field, particularly a kind of method and apparatus determining hydrocarbon source rock row hydrocarbon rate.
Background technology
Row's hydrocarbon rate is the number percent that hydrocarbon source rock discharges that hydrocarbon amount accounts for generation hydrocarbon amount, row's hydrocarbon rate of hydrocarbon source rock with affect hydrocarbon generation, remain, all factors of raftinging are closely related, also with the physical property of the thickness of hydrocarbon source rock, adjacent carrier bed or reservoir, hydrodynamic condition and to give birth to the array configuration of reservoir relevant with contact area.Therefore, how accurately to determine that the fortune that row's hydrocarbon rate of hydrocarbon source rock directly can have influence on oil gas gathers coefficient.
At present, following several method is mainly contained to the evaluation of row's hydrocarbon rate of hydrocarbon source rock:
1) residual hydrocarbons amount method, the method does not consider in hydrocarbon source rock, whether residual quantity reaches row's hydrocarbon critical condition, but there is some linear in hypothesis Hydrocarbon yield and residual hydrocarbon amount, and then by hydrocarbon source rock chloroform"A", hydrocarbon source rock density and the residual hydrocarbon amount of hydrocarbon source rock volume determination hydrocarbon source rock, finally utilize Hydrocarbon yield and upper Hydrocarbon yield and residual hydrocarbon amount sum just can in the hope of arranging hydrocarbon rate.But the value of the linear relationship in this method is mainly obtained by experience, still there is very large difference with actual conditions.
2) multi-phase porous flow theory method, the method mainly considers the permeability of hydrocarbon source rock, differential pressure, FFV, area and thickness.Then, when multiphase porous flow, the minimum critical saturation (S) of hydrocarbon is generally greater than 20%, and therefore under multiphase porous flow condition, it is more difficult that hydrocarbon will be discharged in a large number, not easily evaluates hydrocarbon source rock row hydrocarbon rate.
3) hydrocarbon saturation method, the method mainly supposes that the hydrocarbon saturation in hydrocarbon source rock displacement fluids is identical with the hydrocarbon saturation of fluid in hydrocarbon source rock, and it is long-pending that row's hydrocarbon total amount equals hydrocarbon source rock displacement fluids total amount and hydrocarbon saturation and hydrocarbon density.But in this approach, whether hydrocarbon exists query with the proportional discharge of water, and displacement fluids total amount is not easy to determine.
4) geologic analogy method, the method is as Hydrocarbon yield Q according to the geologic reserve in reservoir ewith hydrocarbon amount Q raw in hydrocarbon source rock sratio, the row of obtaining hydrocarbon rate F p.But this method is only applicable to the analysis of basin level, row's hydrocarbon rate that it calculates is the most float hydrocarbon rate in basin.
5) hydrocarbon potentiality method is given birth to, the method mainly produces the contrast of hydrocarbon potentiality by the raw hydrocarbon gesture of oil-degrading bacteria and prematurity oil-degrading bacteria of the same type of arranging hydrocarbon, determine Hydrocarbon yield by the contrast of the homologous series of hydrocarbon active layer sending out hydrocarbon generation and expulsion, then obtain arranging hydrocarbon rate than the S1 sum of upper Hydrocarbon yield with the hydrocarbon source rock arranging hydrocarbon with Hydrocarbon yield.This method is generally difficult to determine whether hydrocarbon source rock does not arrange hydrocarbon, and is difficult to the different evolution stages that the hydrocarbon source rock determining to arrange hydrocarbon and the hydrocarbon source rock not arranging hydrocarbon belong to same class hydrocarbon source rock.
6) original raw hydrocarbon potentiality restoring method, the method mainly recovers the original hydrocarbon potential of position, target hydrocarbon source bed, measure the raw hydrocarbon gesture sent out in the hydrocarbon source rock of hydrocarbon generation and expulsion again, deduct with original hydrocarbon potential the hydrocarbon potential arranged in hydrocarbon hydrocarbon source rock and obtain raw hydrocarbon amount, deduct the raw hydrocarbon gesture of arranging in hydrocarbon hydrocarbon source rock with original hydrocarbon potential and obtain Hydrocarbon yield, can the row's of obtaining hydrocarbon rate than raw hydrocarbon amount with Hydrocarbon yield.But the original hydrocarbon potential in this method is generally difficult to Obtaining Accurate.
7) evolution trend face minusing, it is be based upon chemical kinetics law and arrange fully realizing of hydrocarbon foundation that the method calculates row's hydrocarbon rate, hydrocarbon rate method is arranged with to estimation on the comprehensive analysis foundation of geochemical data, but lacking related data in many areas is be difficult to launch appraisal.
8) material evaluation assessment, the ultimate principle of the method utilizes chemical dynemics to calculate computing hydrocarbon generating quantity of source, and then the method utilizing geochemical logging, logging evaluation, sample analysis to combine obtains residual hydrocarbons amount, then utilize raw hydrocarbon amount to deduct residual hydrocarbon and measure Hydrocarbon yield, finally recycling Hydrocarbon yield can the row's of obtaining hydrocarbon rate than upper raw hydrocarbon amount.But, control owing to being subject to many factors, such as: the multinomial indirect indexes such as sedimentation, the segmenting that is heated, organic original abundance and original raw hydrocarbon potentiality, and carry out on rock fever simulated experiment basis, too complicated in the evaluation procedure of therefore the method, universality is poor.
Can be found by above-mentioned analysis, all there is some problems in the evaluation method of the hydrocarbon source rock row hydrocarbon rates such as above-mentioned residual hydrocarbons amount method, multiphase porous flow method, hydrocarbon saturation method, raw hydrocarbon gesture method (i.e. natural maturation section) and material balance method.
For the technical matters how simply determining row's hydrocarbon rate of hydrocarbon source rock exactly, at present effective solution is not yet proposed.
Summary of the invention
Embodiments provide a kind of method determining hydrocarbon source rock row hydrocarbon rate, to reach the object simply accurately determining hydrocarbon source rock row hydrocarbon rate, the method comprises:
Obtain the semi-open semiclosed thermal simulation experiment data of direct press type of hydrocarbon source rock to be analyzed;
According to described thermal simulation experiment data determination first row hydrocarbon rate;
Obtain pyrolysis gas chromatography experimental data;
According to described pyrolysis gas chromatography experimental data, light hydrocarbon component compensation is carried out to described first row hydrocarbon rate, obtains second row hydrocarbon rate;
Using the row hydrocarbon rate of described second row hydrocarbon rate as described hydrocarbon source rock to be analyzed.
In one embodiment, comprise according to described thermal simulation experiment data determination first row hydrocarbon rate:
According to first row hydrocarbon rate described in following formulae discovery:
P 1 = Q 1 + Q 3 Q 1 + Q 3 + Q 2 + Q 4
Wherein, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, P 1represent described first row hydrocarbon rate.
In one embodiment, according to described pyrolysis gas chromatography experimental data, light hydrocarbon component compensation is carried out to described first row hydrocarbon rate, obtains second row hydrocarbon rate, comprising:
According to described pyrolysis gas chromatography experimental data, determine the light hydrocarbon component coefficient of restitution corresponding to Type of hydrocarbon source rock of described hydrocarbon source rock to be analyzed;
According to the light hydrocarbon component coefficient of restitution determined, described first row hydrocarbon rate is compensated, obtain second row hydrocarbon rate.
In one embodiment, according to the light hydrocarbon component coefficient of restitution determined, described first row hydrocarbon rate is compensated according to following formula, obtains second row hydrocarbon rate:
P 0 = Q 1 + Q 3 Q 1 + Q 3 + ( Q 2 + Q 4 ) * K J Z
Wherein, P 0represent second row hydrocarbon rate, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, K jZrepresent light hydrocarbon component coefficient of restitution.
In one embodiment, the light hydrocarbon component coefficient of restitution corresponding to Type of hydrocarbon source rock of hydrocarbon source rock to be analyzed is determined according to following formula:
K J Z = C 15 + + C 6 - 14 + C 1 - 5 C 15 + + C 1 - 5
Wherein, K jZrepresent light hydrocarbon component coefficient of restitution, C 15+represent C 15+percentage composition, C 6-14represent C 6-14percentage composition, C 1-5represent C 1-5percentage composition.
In one embodiment, Type of hydrocarbon source rock comprises: I type hydrocarbon source rock, II1 type hydrocarbon source rock or, II2 type hydrocarbon source rock.
The embodiment of the present invention additionally provides a kind of device determining hydrocarbon source rock row hydrocarbon rate, and to reach the object simply accurately determining hydrocarbon source rock row hydrocarbon rate, this device comprises:
First acquisition module, the semi-open semiclosed thermal simulation experiment data of the direct press type for obtaining hydrocarbon source rock to be analyzed;
First determination module, for according to described thermal simulation experiment data determination first row hydrocarbon rate;
Second acquisition module, for obtaining pyrolysis gas chromatography experimental data;
Compensating module, for according to described pyrolysis gas chromatography experimental data, carries out light hydrocarbon component compensation to described first row hydrocarbon rate, obtains second row hydrocarbon rate;
Second determination module, for using the row hydrocarbon rate of described second row hydrocarbon rate as described hydrocarbon source rock to be analyzed.
In one embodiment, described first determination module is specifically for according to first row hydrocarbon rate described in following formulae discovery:
P 1 = Q 1 + Q 3 Q 1 + Q 3 + Q 2 + Q 4
Wherein, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, P 1represent described first row hydrocarbon rate.
In one embodiment, described compensating module comprises:
Determining unit, for according to described pyrolysis gas chromatography experimental data, determines the light hydrocarbon component coefficient of restitution corresponding to Type of hydrocarbon source rock of described hydrocarbon source rock to be analyzed;
Compensating unit, for compensating described first row hydrocarbon rate according to the light hydrocarbon component coefficient of restitution determined, obtains second row hydrocarbon rate.
In one embodiment, described compensating unit, specifically for compensating described first row hydrocarbon rate according to the light hydrocarbon component coefficient of restitution determined according to following formula, obtains second row hydrocarbon rate:
P 0 = Q 1 + Q 3 Q 1 + Q 3 + ( Q 2 + Q 4 ) * K J Z
Wherein, P 0represent second row hydrocarbon rate, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, K jZrepresent light hydrocarbon component coefficient of restitution.
In one embodiment, described determining unit specifically for determine hydrocarbon source rock to be analyzed according to following formula Type of hydrocarbon source rock corresponding to light hydrocarbon component coefficient of restitution:
K J Z = C 15 + + C 6 - 14 + C 1 - 5 C 15 + + C 1 - 5
Wherein, K jZrepresent light hydrocarbon component coefficient of restitution, C 15+represent C 15+percentage composition, C 6-14represent C 6-14percentage composition, C 1-5represent C 1-5percentage composition.
In embodiments of the present invention, propose a kind of method determining hydrocarbon source rock row hydrocarbon rate, the method, first according to thermal simulation experiment data determination first row hydrocarbon rate, is then corrected first row hydrocarbon rate obtained above by pyrolysis gas chromatography experimental data, arranges hydrocarbon rate accurately to obtain hydrocarbon source rock.Solve by the way in prior art and determine that the method for hydrocarbon source rock row hydrocarbon rate is too complicated, the technical matters that accuracy is not high, reaches the technique effect simply accurately determining hydrocarbon source rock row hydrocarbon rate.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a application's part, does not form limitation of the invention.In the accompanying drawings:
Fig. 1 is the method flow diagram of the determination hydrocarbon source rock row hydrocarbon rate according to the embodiment of the present invention;
Fig. 2 tentatively arranges hydrocarbon rate schematic diagram according to the eastern part of Talimu Basin English Ji ginseng formation of Jurassic hydrocarbon source rock of the embodiment of the present invention;
Fig. 3 is the coal row hydrocarbon rate correction coefficient plate according to the embodiment of the present invention;
Fig. 4 is the I type row hydrocarbon rate correction coefficient plate according to the embodiment of the present invention;
Fig. 5 is the II1 type row hydrocarbon rate correction coefficient plate according to the embodiment of the present invention;
Fig. 6 is the II2 type row hydrocarbon rate correction coefficient plate according to the embodiment of the present invention;
Fig. 7 is the type III row hydrocarbon rate correction coefficient plate according to the embodiment of the present invention;
Fig. 8 is the hydrocarbon source rock row hydrocarbon rate schematic diagram of the eastern part of Talimu Basin English Ji ginseng formation of Jurassic according to the embodiment of the present invention;
Fig. 9 is the structured flowchart arranging the device of hydrocarbon rate according to the determination hydrocarbon source rock of the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with embodiment and accompanying drawing, the present invention is described in further details.At this, exemplary embodiment of the present invention and illustrating for explaining the present invention, but not as a limitation of the invention.
Embodiments provide a kind of method determining hydrocarbon source rock row hydrocarbon rate, as shown in Figure 1, the method comprises:
Step 101: the semi-open semiclosed thermal simulation experiment data of direct press type obtaining hydrocarbon source rock to be analyzed;
Just row's hydrocarbon rate of hydrocarbon source rock can be determined based on these thermal simulation experiment data, but, hydrocarbon source rock direct press type thermal simulation experiment is that residual hydrocarbons amount in rear hydrocarbon source rock is simulated in extracting under semi-open semiclosed condition, light hydrocarbon component (C in residual hydrocarbons amount in extractive process 6-14) loss, row's hydrocarbon rate P that direct press type thermal simulation experiment data are determined is than actual row's hydrocarbon rate P 0bigger than normal.Therefore, in order to make row's hydrocarbon rate of determining more accurate, the row's hydrocarbon rate to obtaining is needed to adjust.
Step 102: according to described thermal simulation experiment data determination first row hydrocarbon rate;
In the process that reality realizes, after acquisition thermal simulation experiment data, can according to following formulae discovery first row hydrocarbon rate:
P 1 = Q 1 + Q 3 Q 1 + Q 3 + Q 2 + Q 4
Wherein, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, P 1represent described first row hydrocarbon rate.
Namely row's hydrocarbon rate is calculated by the discharge oil mass in the semi-open semiclosed thermal simulation experiment data of direct press type, residual oil mass, discharge tolerance and tarpped gas volume.
Step 103: obtain pyrolysis gas chromatography experimental data;
Because consider the light hydrocarbon component (C needed losing in extractive process 6-14) compensate, therefore, PY-Gc experimental data can be adopted the light hydrocarbon component (C lost in extractive process 6-14) compensate, thus guarantee that the hydrocarbon source rock row hydrocarbon rate evaluated is more accurate, namely can obtain pyrolysis gas chromatography experimental data.
Step 104: according to described pyrolysis gas chromatography experimental data, carries out light hydrocarbon component compensation to described first row hydrocarbon rate, obtains second row hydrocarbon rate;
In the process realized, in such a way according to described pyrolysis gas chromatography experimental data, light hydrocarbon component compensation can be carried out to described first row hydrocarbon rate, obtains second row hydrocarbon rate, comprising:
S1: according to described pyrolysis gas chromatography experimental data, determines the light hydrocarbon component coefficient of restitution corresponding to Type of hydrocarbon source rock of described hydrocarbon source rock to be analyzed;
S2: according to the light hydrocarbon component coefficient of restitution determined, described first row hydrocarbon rate is compensated, obtain second row hydrocarbon rate.
Namely calculate light hydrocarbon component coefficient of restitution according to pyrolysis gas chromatography experimental data, then bring in first row hydrocarbon rate to obtain more adequately arranging hydrocarbon rate based on this light hydrocarbon component coefficient of restitution.
Concrete, can compensate described first row hydrocarbon rate according to the light hydrocarbon component coefficient of restitution determined according to following formula, obtain second row hydrocarbon rate:
P 0 = Q 1 + Q 3 Q 1 + Q 3 + ( Q 2 + Q 4 ) * K J Z
Wherein, P 0represent second row hydrocarbon rate, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, K jZrepresent light hydrocarbon component coefficient of restitution.
Light hydrocarbon component coefficient of restitution corresponding to the Type of hydrocarbon source rock of hydrocarbon source rock to be analyzed can obtain according to following formula:
K J Z = C 15 + + C 6 - 14 + C 1 - 5 C 15 + + C 1 - 5
Wherein, K jZrepresent light hydrocarbon component coefficient of restitution, C 15+represent C 15+percentage composition, C 6-14represent C 6-14percentage composition, C 1-5represent C 1-5percentage composition.
This light hydrocarbon component coefficient of restitution is brought in above-mentioned row's hydrocarbon rate computing formula, the more adequately row hydrocarbon rate after can being adjusted:
P 0 = Q 1 + Q 3 Q 1 + Q 3 + ( Q 2 + Q 4 ) * C 15 + + C 6 - 14 + C 1 - 5 C 15 + + C 1 - 5
Wherein, above-mentioned Type of hydrocarbon source rock can include but not limited to: I type hydrocarbon source rock, II1 type hydrocarbon source rock or, II2 type hydrocarbon source rock.
Step 105: using the row hydrocarbon rate of described second row hydrocarbon rate as described hydrocarbon source rock to be analyzed.
In the above-described embodiments, propose a kind of method determining hydrocarbon source rock row hydrocarbon rate, the method, first according to thermal simulation experiment data determination first row hydrocarbon rate, is then corrected first row hydrocarbon rate obtained above by pyrolysis gas chromatography experimental data, arranges hydrocarbon rate accurately to obtain hydrocarbon source rock.Solve by the way in prior art and determine that the method for hydrocarbon source rock row hydrocarbon rate is too complicated, the technical matters that accuracy is not high, reaches the technique effect simply accurately determining hydrocarbon source rock row hydrocarbon rate.
Provide a specific embodiment in invention and determine that the method for hydrocarbon source rock row hydrocarbon rate is specifically described to above-mentioned, but it should be noted that this specific embodiment is only to better the present invention is described, do not form inappropriate limitation of the present invention.
A kind of hydrocarbon source rock row hydrocarbon rate defining method analyzed based on petroleum component is provided in this example, the method fully overcomes the shortcoming that previous methods is too loaded down with trivial details, the cycle of operation is long, mainly utilize the semi-open semiclosed thermal simulation experiment data of hydrocarbon source rock direct press type and PY-Gc (pyrolysis gas chromatography) experimental data, to determine hydrocarbon source rock row hydrocarbon rate, thus overcome deficiency and the defect of hydrocarbon source rock row hydrocarbon rate evaluation method in the past, solve in oil and gas resource evaluation the problem being difficult to determine hydrocarbon source rock row hydrocarbon rate, so that oil field Fast Evaluation goes out the hydrocarbon source rock row hydrocarbon rate of destination layer position.
Concrete, this hydrocarbon source rock row hydrocarbon rate defining method comprises the steps:
Step 1: hydrocarbon source rock thermal simulation experiment, namely designs hydrocarbon source rock thermal simulation experiment, and hydrocarbon source rock PY-Gc tests and the semiclosed Semi-open system thermal simulation experiment of direct press type, for the evaluation of hydrocarbon source rock row hydrocarbon rate lays the foundation;
Step 2: hydrocarbon source rock row hydrocarbon rate preliminary assessment model P: based on the semi-open semiclosed thermal simulation experiment data of hydrocarbon source rock direct press type, sets up hydrocarbon source rock row hydrocarbon rate preliminary assessment model P, the row of evaluating hydrocarbon rate P;
Because consider that hydrocarbon source rock direct press type thermal simulation experiment is that residual hydrocarbons amount in rear hydrocarbon source rock is simulated in extracting under semi-open semiclosed condition, light hydrocarbon component (C in residual hydrocarbons amount in extractive process 6-14) loss, row's hydrocarbon rate P that direct press type thermal simulation experiment data are determined is than actual row's hydrocarbon rate P 0bigger than normal.Thus light hydrocarbon component (the C to losing in extractive process is needed 6-14) compensate, in this example, PY-Gc experimental data can be adopted the light hydrocarbon component (C lost in extractive process 6-14) compensate, thus guarantee that the hydrocarbon source rock row hydrocarbon rate evaluated is more accurate.
Step 3: the light hydrocarbon component (C determining row's hydrocarbon rate of dissimilar hydrocarbon source rock 6-14) coefficient of restitution evaluation: the PY-Gc experimental data that the dissimilar hydrocarbon source rock in many places can be collected, according to PY-Gc experimental data chemical species (C 15+, C 6-14, C 1-5), evaluate the lighter hydrocarbons (C of dissimilar hydrocarbon source rock 6-14) coefficient of restitution, set up row's hydrocarbon rate lighter hydrocarbons coefficient of restitution plate of dissimilar hydrocarbon source rock, thus the lighter hydrocarbons coefficient of restitution of Fast Evaluation hydrocarbon source rock row hydrocarbon rate;
Step 4: set up hydrocarbon source rock row hydrocarbon rate evaluation model P 0: the light hydrocarbon component (C arranging row's hydrocarbon rate of the dissimilar hydrocarbon source rock in hydrocarbon rate preliminary assessment model P and step 3 in conjunction with the hydrocarbon source rock in above-mentioned steps 2 6-14) coefficient of restitution, set up hydrocarbon source rock row hydrocarbon rate evaluation model P 0, utilize hydrocarbon source rock to arrange hydrocarbon rate evaluation model P 0evaluate hydrocarbon source rock row hydrocarbon rate.
For eastern part of Talimu Basin English Ji ginseng formation of Jurassic hydrocarbon source rock, determine that the method for hydrocarbon source rock row hydrocarbon rate is specifically described to above-mentioned, the method is based on the semi-open semiclosed thermal simulation experiment data of hydrocarbon source rock direct press type and PY-Gc experimental data, adopt a kind of hydrocarbon source rock row hydrocarbon rate evaluation method analyzed based on petroleum component, evaluate eastern part of Talimu Basin English Ji ginseng formation of Jurassic hydrocarbon source rock row hydrocarbon rate.Specifically can comprise the following steps:
Step 1: hydrocarbon source rock thermal simulation experiment:
The hydrocarbon source rock thermal simulation experiment of design eastern part of Talimu Basin English Ji ginseng formation of Jurassic, i.e. Jurassic source rocks PY-Gc experiment and the semiclosed Semi-open system thermal simulation experiment of direct press type, wherein, the semi-open semiclosed thermal simulation experiment result of eastern part of Talimu Basin English Ji ginseng formation of Jurassic hydrocarbon source rock (being assumed to be type III hydrocarbon source rock) direct press type is as shown in table 1 below:
Table 1
Step 2: set up hydrocarbon source rock row hydrocarbon rate preliminary assessment model P
Based on the semi-open semiclosed thermal simulation experiment data of eastern part of Talimu Basin English Ji ginseng formation of Jurassic hydrocarbon source rock direct press type, set up hydrocarbon source rock row hydrocarbon rate preliminary assessment model P, evaluate the eastern part of Talimu Basin English Ji ginseng formation of Jurassic hydrocarbon source rock obtained as shown in Figure 2 and tentatively arrange hydrocarbon rate.
Step 3: the light hydrocarbon component (C determining row's hydrocarbon rate of dissimilar hydrocarbon source rock 6-14) coefficient of restitution
Collect the PY-Gc experimental data of the dissimilar hydrocarbon source rock in many places, according to PY-Gc experimental data chemical species (C 15+, C 6-14, C 1-5), set up the lighter hydrocarbons (C of dissimilar hydrocarbon source rock row hydrocarbon rate 6-14) coefficient of restitution plate, to evaluate the lighter hydrocarbons coefficient of restitution of dissimilar hydrocarbon source rock.Be respectively coal, I type, II1 type, II2 type, type III row hydrocarbon rate correction coefficient plate as shown in FIG. 3 to 7, wherein, Ro represents the evolution level of hydrocarbon source rock.In this example, eastern part of Talimu Basin English Ji ginseng formation of Jurassic hydrocarbon source rock is type III hydrocarbon source rock, therefore, selects the light hydrocarbon component coefficient of restitution of type III hydrocarbon source rock, is illustrated in figure 7 the light hydrocarbon component coefficient of restitution of type III hydrocarbon source rock.
Step 4: hydrocarbon source rock row hydrocarbon rate evaluation model P 0
Light hydrocarbon component (the C of row's hydrocarbon rate of the dissimilar hydrocarbon source rock in hydrocarbon rate preliminary assessment model P and step 3 is arranged in conjunction with the hydrocarbon source rock in above-mentioned steps 2 6-14) coefficient of restitution, set up hydrocarbon source rock row hydrocarbon rate evaluation model P 0.Set up a kind of hydrocarbon source rock row hydrocarbon rate evaluation method analyzed based on petroleum component, based on eastern part of Talimu Basin English Ji ginseng formation of Jurassic hydrocarbon source rock direct press type heat pattern experimental data and PY-Gc experimental data, utilize hydrocarbon source rock to arrange hydrocarbon rate evaluation model P 0evaluate the hydrocarbon source rock row hydrocarbon rate of eastern part of Talimu Basin English Ji ginseng formation of Jurassic as shown in Figure 8.
Adopt row's hydrocarbon rate lighter hydrocarbons correcting plate as shown in Figure 7 of each exploratory area type III mud stone Py-Gc experimental data statistics, the row's hydrocarbon rate evaluated in integrating step 2, correct out rationally row's hydrocarbon rate as shown in Figure 8 accurately.This step row hydrocarbon rate corrects considers direct press type thermal simulation experiment condition, correct out the lighter hydrocarbons part of losing in extracting residual hydrocarbons process, this row's hydrocarbon rate is compared to directly adopting row's hydrocarbon rate of direct press type thermal simulation experiment data evaluation little, thus the geologic condition making row's hydrocarbon rate of evaluating more realistic.
Above-mentionedly determine that the method for hydrocarbon source rock row hydrocarbon rate accurately can determine key parameter row hydrocarbon rate in oil and gas resource evaluation based on hydrocarbon source rock direct press type thermal simulation experiment and PY-Gc experiment, contribute to Hydrocarbon yield and the poly-coefficient of fortune that accurate evaluation goes out hydrocarbon source rock, be convenient to determine the hydrocarbon resources amount of oil-and-gas basin and establish the direction of next step oil-gas exploration.
Based on same inventive concept, additionally provide a kind of device determining hydrocarbon source rock row hydrocarbon rate in the embodiment of the present invention, as described in the following examples.Owing to determining principle that the device of hydrocarbon source rock row hydrocarbon rate deals with problems and to determine that hydrocarbon source rock arrange the method for hydrocarbon rate similar, therefore determine that the enforcement of the device of hydrocarbon source rock row hydrocarbon rate can see determining that hydrocarbon source rock arranges the enforcement of the method for hydrocarbon rate, repetition part repeats no more.Following used, term " unit " or " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following examples preferably realizes with software, hardware, or the realization of the combination of software and hardware also may and conceived.Fig. 9 is a kind of structured flowchart of the device of the determination hydrocarbon source rock row hydrocarbon rate of the embodiment of the present invention, as shown in Figure 9, comprise: the first acquisition module 901, first determination module 902, second acquisition module 903, compensating module 904 and the second determination module 905, be described this structure below.
First acquisition module 901, the semi-open semiclosed thermal simulation experiment data of the direct press type for obtaining hydrocarbon source rock to be analyzed;
First determination module 902, for according to described thermal simulation experiment data determination first row hydrocarbon rate;
Second acquisition module 903, for obtaining pyrolysis gas chromatography experimental data;
Compensating module 904, for according to described pyrolysis gas chromatography experimental data, carries out light hydrocarbon component compensation to described first row hydrocarbon rate, obtains second row hydrocarbon rate;
Second determination module 905, for using the row hydrocarbon rate of described second row hydrocarbon rate as described hydrocarbon source rock to be analyzed.
In one embodiment, the first determination module 902 specifically may be used for according to first row hydrocarbon rate described in following formulae discovery:
P 1 = Q 1 + Q 3 Q 1 + Q 3 + Q 2 + Q 4
Wherein, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, P 1represent described first row hydrocarbon rate.
In one embodiment, compensating module 904 can comprise: determining unit, for according to described pyrolysis gas chromatography experimental data, determines the light hydrocarbon component coefficient of restitution corresponding to Type of hydrocarbon source rock of described hydrocarbon source rock to be analyzed; Compensating unit, for compensating described first row hydrocarbon rate according to the light hydrocarbon component coefficient of restitution determined, obtains second row hydrocarbon rate.
In one embodiment, above-mentioned compensating unit specifically may be used for compensating described first row hydrocarbon rate according to the light hydrocarbon component coefficient of restitution determined according to following formula, obtains second row hydrocarbon rate:
P 0 = Q 1 + Q 3 Q 1 + Q 3 + ( Q 2 + Q 4 ) * K J Z
Wherein, P 0represent second row hydrocarbon rate, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, K jZrepresent light hydrocarbon component coefficient of restitution.
In one embodiment, above-mentioned determining unit specifically may be used for the light hydrocarbon component coefficient of restitution corresponding to Type of hydrocarbon source rock of determining hydrocarbon source rock to be analyzed according to following formula:
K J Z = C 15 + + C 6 - 14 + C 1 - 5 C 15 + + C 1 - 5
Wherein, K jZrepresent light hydrocarbon component coefficient of restitution, C 15+represent C 15+percentage composition, C 6-14represent C 6-14percentage composition, C 1-5represent C 1-5percentage composition.
From above description, can find out, the embodiment of the present invention achieves following technique effect: propose a kind of method determining hydrocarbon source rock row hydrocarbon rate, the method is first according to thermal simulation experiment data determination first row hydrocarbon rate, then by pyrolysis gas chromatography experimental data, first row hydrocarbon rate obtained above is corrected, arrange hydrocarbon rate accurately to obtain hydrocarbon source rock.Solve by the way in prior art and determine that the method for hydrocarbon source rock row hydrocarbon rate is too complicated, the technical matters that accuracy is not high, reaches the technique effect simply accurately determining hydrocarbon source rock row hydrocarbon rate.
Obviously, those skilled in the art should be understood that, each module of the above-mentioned embodiment of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, and in some cases, step shown or described by can performing with the order be different from herein, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the embodiment of the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the embodiment of the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (11)

1. determine a method for hydrocarbon source rock row hydrocarbon rate, it is characterized in that, comprising:
Obtain the semi-open semiclosed thermal simulation experiment data of direct press type of hydrocarbon source rock to be analyzed;
According to described thermal simulation experiment data determination first row hydrocarbon rate;
Obtain pyrolysis gas chromatography experimental data;
According to described pyrolysis gas chromatography experimental data, light hydrocarbon component compensation is carried out to described first row hydrocarbon rate, obtains second row hydrocarbon rate;
Using the row hydrocarbon rate of described second row hydrocarbon rate as described hydrocarbon source rock to be analyzed.
2. the method for claim 1, is characterized in that, comprises according to described thermal simulation experiment data determination first row hydrocarbon rate:
According to first row hydrocarbon rate described in following formulae discovery:
P 1 = Q 1 + Q 3 Q 1 + Q 3 + Q 2 + Q 4
Wherein, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, P 1represent described first row hydrocarbon rate.
3. the method for claim 1, is characterized in that, according to described pyrolysis gas chromatography experimental data, carries out light hydrocarbon component compensation, obtain second row hydrocarbon rate, comprising described first row hydrocarbon rate:
According to described pyrolysis gas chromatography experimental data, determine the light hydrocarbon component coefficient of restitution corresponding to Type of hydrocarbon source rock of described hydrocarbon source rock to be analyzed;
According to the light hydrocarbon component coefficient of restitution determined, described first row hydrocarbon rate is compensated, obtain second row hydrocarbon rate.
4. method as claimed in claim 3, is characterized in that, compensate, obtain second row hydrocarbon rate according to following formula according to the light hydrocarbon component coefficient of restitution determined to described first row hydrocarbon rate:
P 0 = Q 1 + Q 3 Q 1 + Q 3 + ( Q 2 + Q 4 ) * K J Z
Wherein, P 0represent second row hydrocarbon rate, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, K jZrepresent light hydrocarbon component coefficient of restitution.
5. method as claimed in claim 3, is characterized in that, determine the light hydrocarbon component coefficient of restitution corresponding to Type of hydrocarbon source rock of hydrocarbon source rock to be analyzed according to following formula:
K J Z = C 15 + + C 6 - 14 + C 1 - 5 C 15 + + C 1 - 5
Wherein, K jZrepresent light hydrocarbon component coefficient of restitution, C 15+represent C 15+percentage composition, C 6-14represent C 6-14percentage composition, C 1-5represent C 1-5percentage composition.
6. the method according to any one of claim 3 to 5, is characterized in that, Type of hydrocarbon source rock comprises: I type hydrocarbon source rock, II1 type hydrocarbon source rock or, II2 type hydrocarbon source rock.
7. determine a device for hydrocarbon source rock row hydrocarbon rate, it is characterized in that, comprising:
First acquisition module, the semi-open semiclosed thermal simulation experiment data of the direct press type for obtaining hydrocarbon source rock to be analyzed;
First determination module, for according to described thermal simulation experiment data determination first row hydrocarbon rate;
Second acquisition module, for obtaining pyrolysis gas chromatography experimental data;
Compensating module, for according to described pyrolysis gas chromatography experimental data, carries out light hydrocarbon component compensation to described first row hydrocarbon rate, obtains second row hydrocarbon rate;
Second determination module, for using the row hydrocarbon rate of described second row hydrocarbon rate as described hydrocarbon source rock to be analyzed.
8. device as claimed in claim 7, is characterized in that, described first determination module is specifically for according to first row hydrocarbon rate described in following formulae discovery:
P 1 = Q 1 + Q 3 Q 1 + Q 3 + Q 2 + Q 4
Wherein, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, P 1represent described first row hydrocarbon rate.
9. device as claimed in claim 7, it is characterized in that, described compensating module comprises:
Determining unit, for according to described pyrolysis gas chromatography experimental data, determines the light hydrocarbon component coefficient of restitution corresponding to Type of hydrocarbon source rock of described hydrocarbon source rock to be analyzed;
Compensating unit, for compensating described first row hydrocarbon rate according to the light hydrocarbon component coefficient of restitution determined, obtains second row hydrocarbon rate.
10. device as claimed in claim 9, it is characterized in that, described compensating unit, specifically for compensating described first row hydrocarbon rate according to the light hydrocarbon component coefficient of restitution determined according to following formula, obtains second row hydrocarbon rate:
P 0 = Q 1 + Q 3 Q 1 + Q 3 + ( Q 2 + Q 4 ) * K J Z
Wherein, P 0represent second row hydrocarbon rate, Q 1represent and discharge oil mass, Q 2represent residual oil mass, Q 3represent and discharge tolerance, Q 4represent tarpped gas volume, K jZrepresent light hydrocarbon component coefficient of restitution.
11. devices as claimed in claim 9, is characterized in that, described determining unit specifically for determine hydrocarbon source rock to be analyzed according to following formula Type of hydrocarbon source rock corresponding to light hydrocarbon component coefficient of restitution:
K J Z = C 15 + + C 6 - 14 + C 1 - 5 C 15 + + C 1 - 5
Wherein, K jZrepresent light hydrocarbon component coefficient of restitution, C 15+represent C 15+percentage composition, C 6-14represent C 6-14percentage composition, C 1-5represent C 1-5percentage composition.
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