CN105785473A - Method and device for determining contribution to deep mixed oil by source rock of different period - Google Patents
Method and device for determining contribution to deep mixed oil by source rock of different period Download PDFInfo
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Abstract
The invention discloses a method and a device for determining the contribution to deep mixed oil by a source rock of a different period. The method comprises steps: the concentration of monomer hydrocarbon carbon isotopes selected in first crude oil is determined; the concentration of the same monomer hydrocarbon carbon isotopes selected in second crude oil is determined; the concentration of monomer hydrocarbon carbon isotopes in the mixed oil obtained through mixing the first crude oil and the second crude oil is determined; according to the concentration of the monomer hydrocarbon carbon isotopes selected in the first crude oil, the concentration of the monomer hydrocarbon carbon isotopes selected in the second crude oil and the concentration of the monomer hydrocarbon carbon isotopes in the mixed oil after the first crude oil and the second crude oil are mixed, the relationship between the monomer hydrocarbon carbon isotopes in the first crude oil, the second crude oil and the mixed oil is built; and according to the relationship, the weight ratio of the monomer hydrocarbon carbon isotopes in the first crude oil and the second crude oil in the mixed oil is determined, and according to the weight ratio, the contribution of the deep mixed oil is determined. The above technical scheme of the invention improves the deep mixed oil contribution determination accuracy, and a favorable exploration direction is predicted.
Description
Technical field
The present invention relates to petroleum resources quantitative assessment technical field, determine that different times hydrocarbon source rock is to the method for deep mixed oils contribution amount and device particularly to a kind of.
Background technology
The Ge great main force of world oil field is through the exploitation of nearly half a century, and Shallow Oil-Gas finds on a declining curve.The situation of China also allows of no optimist, and the growth of middle-shallow layer exploration reserves is more and more slower.Deep Oil-gas exploration is irresistible, and the Relative Contribution amount of research Deep Oil-gas has, for prediction potential exploration target, the importance that can not be ignored.In recent years, along with domestic and international Demand of Oil & Gas amount be continuously increased and explore deepen continuously, the Relative Contribution amount problem of Deep Oil-gas is also increasingly subject to the attention of Chinese scholars.Compared to middle superficial part oil gas, deep buried depth is big, is as general as High Temperature High Pressure and low porosity and low permeability, and tectonic style is complicated, it is changeable to deposit, and these special geologic settings make Deep Basin oil-gas reservoir have the unique features of self compared with middle-shallow strata reservoir.
At present, the abundance of organic matter utilizing source bed to remain having in prior art is to judge the contribution of deep mixed oils.But, the organic quantity of source bed residual can not directly reflect that gas is become the contribution hidden by source bed now.When original organic matrix is identical, it is more few that residual organic matter number shows more greatly to discharge hydrocarbon amount, and Hydrocarbon Formation Reservoirs contribution is more little.Pang Xiongqi in 1988 etc. publish thesis at " petroleum journal ", and this paper discloses in ground history process, and absolute magnitude organic in hydrocarbon source rock constantly reduces with the carrying out of life, row's hydrocarbon effect, causes that the organic carbon percentage composition reflecting its abundance of organic matter is gradually lowered.It can thus be appreciated that, for there is to arrange in a large number the Deep Basin hydrocarbon source rock of hydrocarbon effect, if only going to differentiate and evaluate the Relative Contribution amount of Deep Oil-gas with remnant organic matter abundance index (TOC), certain error will necessarily be caused, for the hydrocarbon source rock that oil-gas bearing basin deep has reached the high mature-overmature stage, error is more significantly.
Summary of the invention
Embodiments providing and a kind of determine the different times hydrocarbon source rock method to deep mixed oils contribution amount, in order to improve the accuracy determining different times hydrocarbon source rock to deep mixed oils contribution amount, the method includes:
Determine the concentration of a kind of individual hydrocarbon isotope selected from the first crude oil；The first crude oil hydrocarbon source rock that the first period was formed in target area；
Determine the concentration of the individual hydrocarbon isotope selected from the second crude oil；The second crude oil hydrocarbon source rock that the second period was formed in target area；
Determine the concentration of the individual hydrocarbon isotope of the mixed oils that the first crude oil and the second crude oil is mixed to get；
The concentration of the individual hydrocarbon isotope according to the first crude oil, the second crude oil the concentration of individual hydrocarbon isotope, and first concentration of the individual hydrocarbon isotope of mixed oils that is mixed to get of crude oil and the second crude oil, set up the relation of the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils；
The relation of the individual hydrocarbon isotope according to the first crude oil, the second crude oil and mixed oils, determine the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils, according to weight ratio, it is determined that the hydrocarbon source rock that the hydrocarbon source rock of formation in the first period and the second period the are formed contribution amount to deep mixed oils.
The embodiment of the present invention additionally provides a kind of determines the different times hydrocarbon source rock device to deep mixed oils contribution amount, and in order to improve the accuracy determining different times hydrocarbon source rock to deep mixed oils contribution amount, this device includes:
The individual hydrocarbon isotope concentration determination module of the first crude oil, for determining the concentration of a kind of individual hydrocarbon isotope selected from the first crude oil；The first crude oil hydrocarbon source rock that the first period was formed in target area；
The individual hydrocarbon isotope concentration determination module of the second crude oil, for determining the concentration of the individual hydrocarbon isotope selected from the second crude oil；The second crude oil hydrocarbon source rock that the second period was formed in target area；
The individual hydrocarbon isotope concentration determination module of mixed oils, for determining the concentration of the individual hydrocarbon isotope of mixed oils that the first crude oil and the second crude oil is mixed to get；
The relation of individual hydrocarbon isotope sets up module, concentration for the concentration of the individual hydrocarbon isotope according to the first crude oil, the individual hydrocarbon isotope of the second crude oil, and first concentration of the individual hydrocarbon isotope of mixed oils that is mixed to get of crude oil and the second crude oil, set up the relation of the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils；
Contribution amount determines module, relation for the individual hydrocarbon isotope according to the first crude oil, the second crude oil and mixed oils, determine the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils, according to weight ratio, it is determined that the hydrocarbon source rock that the hydrocarbon source rock of formation in the first period and the second period the are formed contribution amount to deep mixed oils.
nullOnly differentiate by remnant organic matter abundance with prior art and compared with evaluating the methods such as the mixed crude oil contribution amount in deep，The embodiment of the present invention utilizes individual hydrocarbon isotope in crude oil to have the feature not changed with matrix evolution level，According to the first crude oil、Quantitative relationship between the individual hydrocarbon isotope concentration of the second crude oil and mixed oils，Establish the first crude oil、The relation of the individual hydrocarbon isotope of the second crude oil and mixed oils，And then according to individual hydrocarbon isotope relation，Calculate the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils，According to this weight ratio，Achieve the Relative Contribution amount of rational judgment deep mixed oils gas，Improve the accuracy that the Relative Contribution amount of deep mixed oils gas is evaluated，Therefore，The technical scheme that the embodiment of the present invention provides is for getting Deep Oil-gas source and Relative Contribution amount thereof clear，Prediction potential exploration target is significant.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, is not intended that limitation of the invention.In the accompanying drawings:
Fig. 1 is the schematic flow sheet determining different times hydrocarbon source rock in the embodiment of the present invention to the method for deep mixed oils contribution amount；
Fig. 2 is the balance model schematic diagram of the individual hydrocarbon isotope of the first crude oil in the embodiment of the present invention, the second crude oil and mixed oils；
Fig. 3 a, Fig. 3 b and Fig. 3 c are Tarim Basin Cambrian system end member oil (TD2 well O1) geological occurrence and geo-chemical feature schematic diagram in the embodiment of the present invention；Wherein, Fig. 3 a is Cambrian system end member oil individual hydrocarbon isotope feature schematic diagram, and Fig. 3 b is Cambrian system end member oil total hydrocarbon chromatographic characteristics schematic diagram, Fig. 3 c is Cambrian system end member oil geological occurrence feature schematic diagram, and wherein, in Fig. 3 c, vertical coordinate is the degree of depth, unit m, figure Chinese and English letter is bottom name code name；
Fig. 4 a and Fig. 4 b is Ordovician, tarim Basin end member oil (English Gu 2 (YG2) well O2) geological occurrence and geo-chemical feature schematic diagram in the embodiment of the present invention；Wherein, Fig. 4 a is that power structure section feature and English Gu 2 (YG2) position view bought in Tarim Basin English, Fig. 4 b is Tarim Basin Ordovician system end member oil (YG2 well O2) geo-chemical feature and meaning schematic diagram, wherein, in Fig. 4 a, vertical coordinate is the degree of depth, unit m, figure Chinese and English letter is bottom name code name；
Fig. 5 a, Fig. 5 b, Fig. 5 c and Fig. 5 d are Crude Oil in Tarim Basin individual hydrocarbon isotope feature and stability schematic diagram thereof in the embodiment of the present invention；Wherein, Fig. 5 a and 5b is the relation schematic diagram of individual hydrocarbon isotope and different well points and area crude oil；Fig. 5 c and 5d is individual hydrocarbon isotope and maturity indices relation schematic diagram, and in Fig. 5 c, Ts is 18 α (H)-22,29,30-trisnorhopane, and Tm is 17 α (H)-22,29,30-trisnorhopane, and in Fig. 5 d, TMNr is trimethyl-naphthalene；
Fig. 6 is two kinds, Tarim Basin end member oil and mixed oils Carbon Isotope Characteristics schematic diagram thereof in the embodiment of the present invention；
Fig. 7 is the model schematic in the embodiment of the present invention based on Monte Carlo simulation mixed oils ratio Yu Relative Contribution；
Fig. 8 is that in the embodiment of the present invention, TZ area has been found that Cambrian system and Ordovician system mixed oils ratio simulation result of calculation schematic diagram in crude oil；
Fig. 9 is the structural representation determining different times hydrocarbon source rock in the embodiment of the present invention to the device of deep mixed oils contribution amount.
Detailed description of the invention
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, the exemplary embodiment of the present invention and explanation thereof are used for explaining the present invention, but not as a limitation of the invention.
Its biomarker feature of different oil gas of originating has certain difference, thus this feature of analytical test single source oil gas can differentiate the source of oil gas, by simulate that the multiple mixed proportion of separate sources oil gas can be similar to actual mixed oils gas biomarker feature.Within 1993, Price publishes thesis on " geochemistry and cosmochemistry journal ", disclose evolution level for oil gas biomarker feature impact relatively larger, therefore, utilize biomarker feature judge Oil-gas source and carry out mixed oils gas ratio quantitative Analysis, be necessary for carrying out the quantitative contrast research of biomarker.Forefathers think in exploration process, but mixed volume is big the secondary source that high stand oil gas is oil gas that biomarker concentration is low, and the mixed volume Immature oil-gas that still biomarker concentration is big less is main source, this thought has certain defect, 2004, Pang Xiongqi etc. publish thesis on " Chinese science report ", this paper is illustrated in consider after biomarker dragon is all studied along with the change of buried depth and biomarker quantitative contrast and finds, the Relative Contribution amount of immature source rock is less than 10%, study according to the quantitative contrast of biomarker, effectively direct the exploration in a collection of Deep Oil-gas field.
But, relevant scholar indicates that the error utilizing biomarker feature decision Oil-gas source is bigger.
Inventor have found that in crude oil, individual hydrocarbon isotope does not change with matrix evolution level, owing to inventors have discovered that this problem, propose individual hydrocarbon isotope feature in a kind of main application crude oil, the method for the Relative Contribution amount of inverting quantitative assessment mixed oils gas.Below the method is described in detail.
Fig. 1 is the schematic flow sheet determining different times hydrocarbon source rock in the embodiment of the present invention to the method for deep mixed oils contribution amount, as it is shown in figure 1, the method comprises the steps:
Step 101: determine the concentration of a kind of individual hydrocarbon isotope selected from the first crude oil；The first crude oil hydrocarbon source rock that the first period was formed in target area；
Step 102: determine the concentration of the individual hydrocarbon isotope selected from the second crude oil；The second crude oil hydrocarbon source rock that the second period was formed in target area；
Step 103: determine the concentration of the individual hydrocarbon isotope of the mixed oils that the first crude oil and the second crude oil is mixed to get；
Step 104: the concentration according to the concentration of the individual hydrocarbon isotope of the first crude oil, the individual hydrocarbon isotope of the second crude oil, and first concentration of the individual hydrocarbon isotope of mixed oils that is mixed to get of crude oil and the second crude oil, set up the relation of the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils；
Step 105: the relation according to the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils, determine the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils, according to weight ratio, it is determined that the hydrocarbon source rock that the hydrocarbon source rock of formation in the first period and the second period the are formed contribution amount to deep mixed oils.
nullOnly differentiate by remnant organic matter abundance with prior art and compared with evaluating the methods such as the mixed crude oil contribution amount in deep，The embodiment of the present invention utilizes individual hydrocarbon isotope in crude oil to have the feature not changed with matrix evolution level，According to the first crude oil、Quantitative relationship between the individual hydrocarbon isotope concentration of the second crude oil and mixed oils，Establish the first crude oil、The relation of the individual hydrocarbon isotope of the second crude oil and mixed oils，And then according to individual hydrocarbon isotope relation，Calculate the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils，According to this weight ratio，Achieve the Relative Contribution amount of rational judgment deep mixed oils gas，Improve the accuracy that the Relative Contribution amount of deep mixed oils gas is evaluated，Therefore，The technical scheme that the embodiment of the present invention provides is for getting Deep Oil-gas source and Relative Contribution amount thereof clear，Prediction potential exploration target is significant.
When being embodied as, the technical scheme that the embodiment of the present invention provides merely illustrates the Relative Contribution amount determining two kinds of crude oil in mixed oils, of course, it is possible to determine multiple crude oil Relative Contribution amount in mixed oils.
The Deep Oil-gas mentioned in the embodiment of the present invention refers to the buried depth oil gas more than 4500m, its formation and freight index future and the very big difference of superficial part oil gas, thus the Relative Contribution amount evaluation methodology of its mixed oils also can difference to some extent.The Relative Contribution amount of individual hydrocarbon isotope characteristic retrieval quantitative assessment mixed oils gas in embodiment of the present invention proposition crude oil.Illustrate how the present invention implements below in conjunction with a concrete example.
Tarim Basin is the Superimposed Basins that western part of China is maximum, petroleum resources is the abundantest, geological conditions is the most complicated, recent two decades carrys out oil-gas exploration and constantly makes progress, but there is dispute for a long time in the source problem that comes of craton area marine oil and gas, although, Most scholars was advocated to overlap hydrocarbon source rock from Cambrian system and the Ordovician system two in recent years, but whichever is lead to yet suffer from dispute.The embodiment of the present invention is intended individual hydrocarbon isotope characteristic retrieval from crude oil and is carried out the Relative Contribution amount of quantitative assessment mixed oils gas, namely the technical scheme that the embodiment of the present invention provides is utilized, may determine that the main source in oil field, Tarim Basin is Cambrian source rocks, also originate from Ordovician Hydrocarbon Source Rocks and they contribution amount to oil field, Tarim Basin.
In an example, the first crude oil is the first end member oil, and the second crude oil is the second end member oil；The individual hydrocarbon isotope value of the first end member oil is in the first range of set value, and the individual hydrocarbon isotope value of the second end member oil is in the second range of set value；The difference of the first setting value and the second setting value is in the 3rd set point.
Fig. 3 a, Fig. 3 b and Fig. 3 c are Tarim Basin Cambrian system end member oil (TD2 well O1) geological occurrence and geo-chemical feature schematic diagram in the embodiment of the present invention；Wherein, Fig. 3 a is Cambrian system end member oil individual hydrocarbon isotope feature schematic diagram, and Fig. 3 b is Cambrian system end member oil total hydrocarbon chromatographic characteristics schematic diagram, Fig. 3 c is Cambrian system end member oil geological occurrence feature schematic diagram, and wherein, in Fig. 3 c, vertical coordinate is the degree of depth, unit m, figure Chinese and English letter is bottom name code name；Fig. 4 a and Fig. 4 b is Ordovician, tarim Basin end member oil (English Gu 2 (YG2) well O2) geological occurrence and geo-chemical feature schematic diagram in the embodiment of the present invention；Wherein, Fig. 4 a is that power structure section feature and English Gu 2 (YG2) position view bought in Tarim Basin English, Fig. 4 b is Tarim Basin Ordovician system end member oil (YG2 well O2) geo-chemical feature and meaning schematic diagram, wherein, in Fig. 4 a, vertical coordinate is the degree of depth, unit m, figure Chinese and English letter is bottom name code name.When being embodied as, end member oil made by the crude oil low with degraded or palliating degradation degree, as shown in Fig. 3 a, Fig. 3 b, Fig. 3 c, Fig. 4 a and Fig. 4 b, all more stable and between the two the carbon isotope difference of TD2 well O1 and Ying Gu 2 (YG2) well O2 carbon isotopes of crude oils value is bigger, namely the individual hydrocarbon isotope value of the first end member oil (is stablized) in the first range of set value, the individual hydrocarbon isotope value of the second end member oil (is stablized) in the second range of set value, and the difference of the first setting value and the second setting value is in the 3rd set point (difference is bigger)；Meanwhile, by their geological occurrence feature it can be seen that they all eliminate the probability that oil gas is mixed into each other.Thus can determine that the end member oil of two different times.
When being embodied as, described first range of set value is: 0～1, and described second range of set value is: 0～1.
In an example, above-mentioned individual hydrocarbon isotope is at C12-C22Between individual hydrocarbon isotope.
Fig. 5 a, Fig. 5 b, Fig. 5 c and Fig. 5 d are Crude Oil in Tarim Basin individual hydrocarbon isotope feature and stability schematic diagram thereof in the embodiment of the present invention；Wherein, Fig. 5 a and 5b is the relation schematic diagram of individual hydrocarbon isotope and different well points and area crude oil；Fig. 5 c and 5d is individual hydrocarbon isotope and maturity indices relation schematic diagram, and in Fig. 5 c, Ts is 18 α (H)-22,29,30-trisnorhopane, and Tm is 17 α (H)-22,29,30-trisnorhopane, and in Fig. 5 d, TMNr is trimethyl-naphthalene.When being embodied as, as shown in Fig. 5 a, Fig. 5 b, Fig. 5 c and Fig. 5 d, inventor finds through substantial amounts of experiment: C12-C22Between individual hydrocarbon isotope more stable, thus selecting C12-C22In a detailed hydrocarbon component carry out Oil-gas source and Relative Contribution amount evaluation.
When being embodied as, the kind of the individual hydrocarbon isotope selected from the second crude oil is identical with the kind of a kind of individual hydrocarbon isotope selected from the first crude oil.Such as: a kind of individual hydrocarbon isotope selected from the first crude oil is C12, then the kind of the individual hydrocarbon isotope selected from the second crude oil is also C12.First crude oil and the second crude oil are from the hydrocarbon source rock in same target area.
Certainly, in order to improve the accuracy of the individual hydrocarbon isotope calculating the first crude oil and the second crude oil weight ratio in mixed oils further, it is also possible to by repeatedly calculating C in the first crude oil and the second crude oil12-C22Between multiple weight ratios of identical type individual hydrocarbon isotope, finally, multiple weight ratios are averaged, finally utilize this meansigma methods, determine the hydrocarbon source rock formed in the hydrocarbon source rock formed for the first period and the second period contribution amount to deep mixed oils.Specifically, for instance: for the first time, the kind of a kind of individual hydrocarbon isotope selected from the first crude oil is C12, the kind of the individual hydrocarbon isotope selected from the second crude oil is also C12, calculating individual hydrocarbon isotope is C12Time, a corresponding weight ratio；For the second time, the kind of a kind of individual hydrocarbon isotope selected from the first crude oil is C13, the kind of the individual hydrocarbon isotope selected from the second crude oil is also C13, calculating individual hydrocarbon isotope is C13Time, a corresponding weight ratio；The rest may be inferred, obtains C12-C22Multiple weight ratios, finally obtain meansigma methods, the weight ratio calculated by such method is accurate, and then, it is determined that hydrocarbon source rock and the hydrocarbon source rock formed for the second period that the first period was formed are also accurate to the contribution amount of deep mixed oils.
When being embodied as, in above-mentioned steps 101, step 102 and step 103, it is the detailed hydrocarbon concentration by two kinds of end members oil due to detailed hydrocarbon concentration in mixed oils and mixed sourced proportion determines, so the carbon isotope of the detailed hydrocarbon concentration of two end-member compositions, carbon isotope and mixed oils only need to be measured, as shown in table 1 below, table 1 is Tarim Basin Cambrian system and Ordovician system deep end member oil individual hydrocarbon isotope and concentration distribution features in the embodiment of the present invention.
Table 1
When being embodied as, in above-mentioned steps 104, the relation of the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils can be:
Wherein, σ13CiIt is the individual hydrocarbon isotope in the i-th quasi-oil, σ13CMFor the individual hydrocarbon isotope of mixed crude oil M, KijBe the part by weight of individual hydrocarbon isotope in the i-th quasi-oil, itself and be 1.
In an example, it is also possible to present in another form, namely the relation of the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils can be:
Va is the volume of a kind of individual hydrocarbon isotope selected from the first crude oil A, and Vb is the volume of the individual hydrocarbon isotope selected from the second crude oil B；Ca is the concentration of the individual hydrocarbon isotope of the first crude oil, and Cb is the concentration of the individual hydrocarbon isotope of the second crude oil；Acm is the weight of a kind of individual hydrocarbon isotope selected from the first crude oil A, and Bcm is the weight of the individual hydrocarbon isotope selected from the second crude oil B；Kac is weight and the ratio of the weight of individual hydrocarbon isotope in mixed oils M of a kind of individual hydrocarbon isotope selected from the first crude oil A, Kbc is weight and the ratio of the weight of individual hydrocarbon isotope in mixed oils M of the individual hydrocarbon isotope selected from the second crude oil B, and Kac and Kbc sum is 1.
When being embodied as, first crude oil, the relation of the individual hydrocarbon isotope of the second crude oil and mixed oils is except presenting with the form of above-mentioned two relational expression, can also is that balance model (first crude oil, the balance model of the individual hydrocarbon isotope of the second crude oil and mixed oils, as shown in Figure 2, in Fig. 2, the implication of each parameter is consistent with mentioned above, do not repeating at this), additionally, in Fig. 2, mixed oils volume takes 1 is for calculating the convenience with call for Votes, in this case, Va, Vb directly represents the volume of two kinds of end member oil volume ratio in miscella respectively.
In one embodiment, the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils, the ratio of the contribution amount of deep mixed oils is directly proportional by the hydrocarbon source rock that the hydrocarbon source rock formed to the first period and the second period are formed.
In an example, according to the relation of the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils and balance model, it is determined that the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils, it is possible to including:
The relation of the individual hydrocarbon isotope according to the first crude oil, the second crude oil and mixed oils and balance model, utilize Monte Carlo simulation, it is determined that the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils.
When being embodied as, Fig. 7 is the Method And Principle figure of Monte Carlo simulation, ultimate principle is: all parameters among above-mentioned formula are taken three different values respectively, namely it is likely to minima (Xmin), maximum value possible (Xa), is likely to maximum (Xmax), them are allowed to change value according to the probability of trigonometric function in the excursion that this is possible, and calculate corresponding mixed oils volume ratio, by the volume ratio (Va) of mixed oils the highest for probability as the best or the most believable result.Geology Geochemistry Parameters (table 2) is obtained around this principle by Tarim Basin Deep Oil-gas being analyzed test and statistics, the data of associative list 1 and table 2, it is simulated calculating to each sampling point of TZ area, each block, the mixed oils ratio of each interval and Cambrian system and Ordovician system Relative Contribution amount size, result is as shown in Figure 8, from Fig. 8 (Fig. 8 Chinese and English letter is stratum code name), Tarim Region Deep Oil-gas is essentially from Cambrian system and the Ordovician system, but the contribution amount of Cambrian system is generally larger than the Ordovician system.
Table 2
Based on same inventive concept, the embodiment of the present invention additionally provides and a kind of determines the different times hydrocarbon source rock device to deep mixed oils contribution amount, such as the following examples.Due to determine different times hydrocarbon source rock to the principle of the device problem of deep mixed oils contribution amount to determine that different times hydrocarbon source rock is similar to the method for deep mixed oils contribution amount, it is thus determined that the enforcement of the device of deep mixed oils contribution amount be may refer to the enforcement determining different times hydrocarbon source rock to the method for deep mixed oils contribution amount by different times hydrocarbon source rock, repeat part and repeat no more.Used below, term " unit " or " module " can realize the software of predetermined function and/or the combination of hardware.Although the device described by following example preferably realizes with software, but hardware, or the realization of the combination of software and hardware is also likely to and is contemplated.
Fig. 9 is the apparatus structure schematic diagram determining different times hydrocarbon source rock in the embodiment of the present invention to deep mixed oils contribution amount, as it is shown in figure 9, this device includes:
The individual hydrocarbon isotope concentration determination module 10 of the first crude oil, for determining the concentration of a kind of individual hydrocarbon isotope selected from the first crude oil；The first crude oil hydrocarbon source rock that the first period was formed in target area；
The individual hydrocarbon isotope concentration determination module 20 of the second crude oil, for determining the concentration of the individual hydrocarbon isotope selected from the second crude oil；The second crude oil hydrocarbon source rock that the second period was formed in target area；
The individual hydrocarbon isotope concentration determination module 30 of mixed oils, for determining the concentration of the individual hydrocarbon isotope of mixed oils that the first crude oil and the second crude oil is mixed to get；
The relation of individual hydrocarbon isotope sets up module 40, concentration for the concentration of the individual hydrocarbon isotope according to the first crude oil, the individual hydrocarbon isotope of the second crude oil, and first concentration of the individual hydrocarbon isotope of mixed oils that is mixed to get of crude oil and the second crude oil, set up the relation of the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils；
Contribution amount determines module 50, relation for the individual hydrocarbon isotope according to the first crude oil, the second crude oil and mixed oils, determine the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils, according to weight ratio, it is determined that the hydrocarbon source rock that the hydrocarbon source rock of formation in the first period and the second period the are formed contribution amount to deep mixed oils.
In an example, the first crude oil is the first end member oil, and the second crude oil is the second end member oil；The individual hydrocarbon isotope value of the first end member oil is in the first range of set value, and the individual hydrocarbon isotope value of the second end member oil is in the second range of set value；The difference of the first setting value and the second setting value is in the 3rd set point.
In an example, above-mentioned individual hydrocarbon isotope is at C12-C22Between individual hydrocarbon isotope.
In an example, contribution amount determines that module 50 specifically may be used for:
The relation of the individual hydrocarbon isotope according to the first crude oil, the second crude oil and mixed oils and balance model, utilize Monte Carlo simulation, it is determined that the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils.
In an example, the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils, it is possible to the ratio of the contribution amount of deep mixed oils is directly proportional by the hydrocarbon source rock that the hydrocarbon source rock formed to the first period and the second period are formed.
In an example, the relation of the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils can be:
Wherein, σ13CiIt is the individual hydrocarbon isotope in the i-th quasi-oil, σ13CMFor the individual hydrocarbon isotope of mixed crude oil M, KijBe the part by weight of individual hydrocarbon isotope in the i-th quasi-oil, itself and be 1.
In an example, the relation of the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils can be:
Va is the volume of a kind of individual hydrocarbon isotope selected from the first crude oil A, and Vb is the volume of the described individual hydrocarbon isotope selected from the second crude oil B；Ca is the concentration of the individual hydrocarbon isotope of described first crude oil, and Cb is the concentration of the individual hydrocarbon isotope of described second crude oil；Acm is the weight of a kind of individual hydrocarbon isotope selected from the first crude oil A, and Bcm is the weight of the described individual hydrocarbon isotope selected from the second crude oil B；Kac is the weight ratio with the weight of individual hydrocarbon isotope described in mixed oils M of a kind of individual hydrocarbon isotope selected from the first crude oil A, Kbc is the weight ratio with the weight of individual hydrocarbon isotope described in mixed oils M of the described individual hydrocarbon isotope selected from the second crude oil B, and Kac and Kbc sum is 1.
In the two end member oil identical situations of detailed hydrocarbon concentration, the detailed hydrocarbon concentration in mixed oils is identical with two end member oil concentrations, it may be assumed that
Ca=Cb=Cm；The concentration of the individual hydrocarbon isotope of the mixed oils that Cm is described first crude oil and the second crude oil is mixed to get.
The technical scheme that the embodiment of the present invention provides can reach following Advantageous Effects:
The technical program utilizes the quantitative relationship between end member oil individual hydrocarbon isotope concentration of component, utilizes Monte Carlo simulation to calculate the ratio of mixed crude, thus the Relative Contribution amount of rational judgment deep mixed oils gas.This invention, for getting Deep Oil-gas source and Relative Contribution amount thereof clear, is evaluated petroleum exploration domain tool and is of great significance.
Those skilled in the art are it should be appreciated that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, complete software implementation or the embodiment in conjunction with software and hardware aspect.And, the present invention can adopt the form at one or more upper computer programs implemented of computer-usable storage medium (including but not limited to disk memory, CD-ROM, optical memory etc.) wherein including computer usable program code.
The present invention is that flow chart and/or block diagram with reference to method according to embodiments of the present invention, equipment (system) and computer program describe.It should be understood that can by the combination of the flow process in each flow process in computer program instructions flowchart and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can be provided to produce a machine to the processor of general purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device so that the instruction performed by the processor of computer or other programmable data processing device is produced for realizing the device of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions may be alternatively stored in and can guide in the computer-readable memory that computer or other programmable data processing device work in a specific way, the instruction making to be stored in this computer-readable memory produces to include the manufacture of command device, and this command device realizes the function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices provides for realizing the step of function specified in one flow process of flow chart or multiple flow process and/or one square frame of block diagram or multiple square frame.
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.All within the spirit and principles in the present invention, any amendment of making, equivalent replacement, improvement etc., should be included within protection scope of the present invention.
Claims (10)
1. determine the different times hydrocarbon source rock method to deep mixed oils contribution amount for one kind, it is characterised in that including:
Determine the concentration of a kind of individual hydrocarbon isotope selected from the first crude oil；The described first crude oil hydrocarbon source rock that the first period was formed in target area；
Determine the concentration of the described individual hydrocarbon isotope selected from the second crude oil；The described second crude oil hydrocarbon source rock that the second period was formed in described target area；
Determine the concentration of the described individual hydrocarbon isotope of the mixed oils that described first crude oil and the second crude oil is mixed to get；
The concentration of the individual hydrocarbon isotope according to the first crude oil, the second crude oil the concentration of described individual hydrocarbon isotope, and first concentration of the described individual hydrocarbon isotope of mixed oils that is mixed to get of crude oil and the second crude oil, set up the relation of the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils；
The relation of the individual hydrocarbon isotope according to described first crude oil, the second crude oil and mixed oils, determine the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils, according to described weight ratio, it is determined that the hydrocarbon source rock that the hydrocarbon source rock of formation in the first period and the second period the are formed contribution amount to deep mixed oils.
2. determining the different times hydrocarbon source rock method to deep mixed oils contribution amount as claimed in claim 1, it is characterised in that described first crude oil is the first end member oil, described second crude oil is the second end member oil；The individual hydrocarbon isotope value of described first end member oil is in the first range of set value, and the described individual hydrocarbon isotope value of the second end member oil is in the second range of set value；The difference of described first setting value and the second setting value is in the 3rd set point.
3. determining the different times hydrocarbon source rock method to deep mixed oils contribution amount as claimed in claim 2, it is characterised in that described first range of set value is: 0～1, described second range of set value is: 0～1.
4. determine the different times hydrocarbon source rock method to deep mixed oils contribution amount as claimed in claim 1, it is characterised in that described individual hydrocarbon isotope is at C12-C22Between individual hydrocarbon isotope.
5. determine the different times hydrocarbon source rock method to deep mixed oils contribution amount as claimed in claim 1, it is characterized in that, the ratio of the contribution amount of deep mixed oils is directly proportional by the hydrocarbon source rock that the individual hydrocarbon isotope of described first crude oil and the second crude oil weight ratio in mixed oils, the hydrocarbon source rock formed to the first period and the second period are formed.
6. determine the different times hydrocarbon source rock method to deep mixed oils contribution amount as claimed in claim 1, it is characterised in that the relation of the individual hydrocarbon isotope of described first crude oil, the second crude oil and mixed oils is:
Wherein, σ13CiIt is the individual hydrocarbon isotope in the i-th quasi-oil, σ13CMFor the individual hydrocarbon isotope of mixed crude oil M, KijIt it is the part by weight of individual hydrocarbon isotope in the i-th quasi-oil.
7. determine the different times hydrocarbon source rock method to deep mixed oils contribution amount as claimed in claim 1, it is characterised in that the relation of the individual hydrocarbon isotope of described first crude oil, the second crude oil and mixed oils is:
Va is the volume of a kind of individual hydrocarbon isotope selected from the first crude oil A, and Vb is the volume of the described individual hydrocarbon isotope selected from the second crude oil B；Ca is the concentration of the individual hydrocarbon isotope of described first crude oil, and Cb is the concentration of the individual hydrocarbon isotope of described second crude oil；Acm is the weight of a kind of individual hydrocarbon isotope selected from the first crude oil A, and Bcm is the weight of the described individual hydrocarbon isotope selected from the second crude oil B；Kac is the weight ratio with the weight of individual hydrocarbon isotope described in mixed oils M of a kind of individual hydrocarbon isotope selected from the first crude oil A, Kbc is the weight ratio with the weight of individual hydrocarbon isotope described in mixed oils M of the described individual hydrocarbon isotope selected from the second crude oil B, and Kac and Kbc sum is 1.
8. determine the different times hydrocarbon source rock device to deep mixed oils contribution amount for one kind, it is characterised in that including:
The individual hydrocarbon isotope concentration determination module of the first crude oil, for determining the concentration of a kind of individual hydrocarbon isotope selected from the first crude oil；The described first crude oil hydrocarbon source rock that the first period was formed in target area；
The individual hydrocarbon isotope concentration determination module of the second crude oil, for determining the concentration of the described individual hydrocarbon isotope selected from the second crude oil；The described second crude oil hydrocarbon source rock that the second period was formed in described target area；
The individual hydrocarbon isotope concentration determination module of mixed oils, for determining the concentration of the described individual hydrocarbon isotope of mixed oils that described first crude oil and the second crude oil is mixed to get；
The relation of individual hydrocarbon isotope sets up module, concentration for the concentration of the individual hydrocarbon isotope according to the first crude oil, the described individual hydrocarbon isotope of the second crude oil, and first concentration of the described individual hydrocarbon isotope of mixed oils that is mixed to get of crude oil and the second crude oil, set up the relation of the individual hydrocarbon isotope of the first crude oil, the second crude oil and mixed oils；
Contribution amount determines module, relation for the individual hydrocarbon isotope according to described first crude oil, the second crude oil and mixed oils, determine the individual hydrocarbon isotope of the first crude oil and the second crude oil weight ratio in mixed oils, according to described weight ratio, it is determined that the hydrocarbon source rock of described formation in first period and the hydrocarbon source rock of formation in the second period contribution amount to deep mixed oils.
9. determining the different times hydrocarbon source rock device to deep mixed oils contribution amount as claimed in claim 8, it is characterised in that it is characterized in that, described individual hydrocarbon isotope is at C12-C22Between individual hydrocarbon isotope.
10. determine the different times hydrocarbon source rock device to deep mixed oils contribution amount as claimed in claim 8, it is characterized in that, the ratio of the contribution amount of deep mixed oils is directly proportional by the hydrocarbon source rock that the individual hydrocarbon isotope of described first crude oil and the second crude oil weight ratio in mixed oils, the hydrocarbon source rock formed to the first period and the second period are formed.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577258A (en) * | 2019-02-19 | 2020-08-25 | 中国石油天然气股份有限公司 | Method and device for evaluating carbon isotope of coal-series coal rock and mudstone contribution rate in coal gasification |
| CN111584016A (en) * | 2019-02-19 | 2020-08-25 | 中国石油天然气股份有限公司 | Deep-ultra-deep high-evolution natural gas contribution rate ethane carbon isotope evaluation method |
| CN111651850A (en) * | 2019-02-19 | 2020-09-11 | 中国石油天然气股份有限公司 | Deep ultra-deep high-evolution natural gas contribution rate rare gas isotope evaluation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1563980A (en) * | 2004-03-30 | 2005-01-12 | 大庆油田有限责任公司 | Method of quantitatively evaluating gas source rock contribution ratio of hydrid natural gas |
| CN104141488A (en) * | 2013-05-07 | 2014-11-12 | 中国石油化工股份有限公司 | Method utilizing C29 sterane isomerization parameters for representing oil-gas migration |
| WO2015183594A1 (en) * | 2014-05-27 | 2015-12-03 | Baker Hughes Incorporated | Wettability estimation using magnetic resonance |
| CN105242026A (en) * | 2015-10-28 | 2016-01-13 | 中国石油化工股份有限公司 | Method for identifying source of gas reservoir |
-
2016
- 2016-03-24 CN CN201610173604.5A patent/CN105785473A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1563980A (en) * | 2004-03-30 | 2005-01-12 | 大庆油田有限责任公司 | Method of quantitatively evaluating gas source rock contribution ratio of hydrid natural gas |
| CN104141488A (en) * | 2013-05-07 | 2014-11-12 | 中国石油化工股份有限公司 | Method utilizing C29 sterane isomerization parameters for representing oil-gas migration |
| WO2015183594A1 (en) * | 2014-05-27 | 2015-12-03 | Baker Hughes Incorporated | Wettability estimation using magnetic resonance |
| CN105242026A (en) * | 2015-10-28 | 2016-01-13 | 中国石油化工股份有限公司 | Method for identifying source of gas reservoir |
Non-Patent Citations (2)
| Title |
|---|
| 李素梅 等: "南堡凹陷混源油分布与主力烃源岩识别", 《地球科学——中国地质大学学报》 * |
| 李素梅 等: "塔里木盆地海相油气源与混源成藏模式", 《地球科学——中国地质大学学报》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577258A (en) * | 2019-02-19 | 2020-08-25 | 中国石油天然气股份有限公司 | Method and device for evaluating carbon isotope of coal-series coal rock and mudstone contribution rate in coal gasification |
| CN111584016A (en) * | 2019-02-19 | 2020-08-25 | 中国石油天然气股份有限公司 | Deep-ultra-deep high-evolution natural gas contribution rate ethane carbon isotope evaluation method |
| CN111651850A (en) * | 2019-02-19 | 2020-09-11 | 中国石油天然气股份有限公司 | Deep ultra-deep high-evolution natural gas contribution rate rare gas isotope evaluation method |
| CN111651850B (en) * | 2019-02-19 | 2022-11-04 | 中国石油天然气股份有限公司 | Deep ultra-deep high-evolution natural gas contribution rate rare gas isotope evaluation method |
| CN111577258B (en) * | 2019-02-19 | 2023-05-26 | 中国石油天然气股份有限公司 | Method and device for evaluating contribution rate carbon isotopes of coal-series coal rocks and mudstones in coal gas |
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