CN103869052B - A kind of method of sandstone reservoir diagenesis electrofacies quantitatively characterizing - Google Patents
A kind of method of sandstone reservoir diagenesis electrofacies quantitatively characterizing Download PDFInfo
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Abstract
The invention discloses a kind of method of sandstone reservoir diagenesis electrofacies quantitatively characterizing, the method of this sandstone reservoir diagenesis electrofacies quantitatively characterizing utilizes the quantitative target of the typical rock electrical quantity of reflection sandstone reservoir DIAGENETIC CHARACTERISTICS AND and environment, the non-longitudinal phase sequence of Diagenetic Facies of getting core well sandstone reservoir of accurate evaluation, and zone of interest reservoir diagenetic phase plane distributes and rule, how effective technical information is provided to sandstone oil-gas exploration and development, optimize the favorable block of sandstone oil-gas exploration and development, improve the prediction accuracy of favorable block, improve the success ratio of exploratory development, reduce cost of exploration & development.
Description
Technical field
The invention belongs to sandstone reservoir oil-gas exploration and development design field, particularly relate to a kind of method of sandstone reservoir diagenesis electrofacies quantitatively characterizing.
Background technology
Sandstone is a kind of clastic sedimentary rock, is the rock formed through very long and complicated deposition, Diagn by fragmental products, mainly siliceous, calcium, clay and iron oxide, and rock is made up of chip and chink two parts.Chip also has white mica, heavy mineral, landwaste etc. except quartz, feldspar.Chink comprises cementing matter and chip and to mix base two kinds of components.Common cementing matter has siliceous and carbonate matter is cementing; Assorted based component mainly refers to the clay that the particle that simultaneously deposits with chip is thinner or flour sand pledge.Sandstone reservoir to preserve the rock stratum with diafiltration fluid, i.e. reservoir can store the rock stratum with diafiltration oil gas, and it must have the certain connectedness (perviousness) in storage area (porosity) and storage area.Control three large key elements of sandstone reservoir physical property quality: deposition, Diagn and tectonization, for the obsolete sandstone reservoir in crack, its physical property height mainly controls by deposition and Diagn.Sandstone reservoir burying in process and will experience series of diagenesis after deposition, as compacting, cementing, dissolve and the effect such as explanation, especially Sandstone Gas Reservoir experienced by more complicated Diagn, enter middle and advanced stage diagenesis evolution stage, thus sandstone reservoir physical property height is somewhat dependent upon the impact, particularly Sandstone Gas Reservoir of diagenesis types and power.In same sedimentary environment, experienced by different diagenetic sandstone reservoir, often there is certain difference in its physical property.Therefore the quality and its Diagn experienced that fully show sandstone reservoir physical property have inevitable cause-effect relationship, and different diagenesis microenvironments determines the height of sandstone reservoir physical property to a certain extent.
The basic skills of current research Diagn and diagenesis microfacies studies the microscopic features such as intergranular contact relation, clay mineral, cementing matter, corrosion by the microsection, scanning electron microscope etc. of Sandstone Cores sample, thus determine the power of compaction, cementation, metasomatosis, corrosion, authigenic mineral precipitating action etc., be finally specified to Lithofacies Types according to these features and index.Diagenetic Facies is the product that experienced by certain diagenesis evolution stage under certain deposition and diagenetic environment, comprise the comprehensive looks of rock particles, cementing matter, group structure and hole seam feature and evolution thereof, reflect the summation of the Geochemical Characteristics of diagenetic environment, Petrographic Features and petrophysics property.Diagenetic Facies is the direct reflection of current reservoir characteristic, is one of causative mark characterizing Reservoir type, character and quality.
According to rock particles, cementing matter, group structure and hole seam feature etc., sandstone Diagenetic Facies can be divided into that intergranular pore develops into petrofacies, fine and close diagenesis is equal, and the former can be further subdivided into pores'growth diagenesis parfacies between bioblast, primary plaque-like hole carbonate cementation diagenesis parfacies, primary plaque-like hole clay gel form rock parfacies etc.; The latter also can be divided into the fine and close cementing diagenesis parfacies of carbonate, clay fine and close cementing diagenesis parfacies, dense compaction diagenesis parfacies etc.At present this research is only limitted to carry out Diagn to rock core (rock) sample and Diagenetic Facies is studied, namely longitudinal Diagenetic Facies sequence of core hole sandstone reservoir is only studied, for an oil field, core hole is very limited, current research method cannot study non-longitudinal Diagn and the Diagenetic Facies of getting core well sandstone reservoir, and sandstone reservoir Diagenetic Facies laterally (plane) distribution and phase sequence, cannot predicting reservoir plane heterogeneity effectively.Be unfavorable for conceptual design and the operation of oil-gas exploration and development process, cause exploratory development efficiency lower, success ratio is lower, because the display of exploratory development result is exactly in same sedimentary subfacies environment, due to the difference of diagenesis parfacies, the enrichment degree of sandstone oil gas has notable difference, therefore in order to sandstone oil gas spatially enrichment degree difference and remaining oil differential enrichment rule can be characterized exactly, need sandstone Diagenetic Facies to expand to and non-ly get core well, typically oil field about 99% producing well non-ly gets core well, thus just can the plane distribution of sandstone reservoirs Diagenetic Facies better, so not only be conducive to prediction sandstone hydrocarbon distribution rule, and instruct oil-gas exploration and development better, raise the efficiency, reduce risk.
Summary of the invention
The object of the embodiment of the present invention is a kind of method providing sandstone reservoir diagenesis electrofacies quantitatively characterizing, be intended to solve favorable block prediction accuracy that existing method exists and exploratory development success ratio low, the problem that cost of exploration & development is high.
The embodiment of the present invention is achieved in that a kind of method of sandstone reservoir diagenesis electrofacies quantitatively characterizing, and the method for this sandstone reservoir diagenesis electrofacies quantitatively characterizing comprises following method step:
Step one, in same oil-gas exploration and development block, according to geologic condition and goal in research demand, choose core hole in different sedimentary micro block and form sample collection observation point, grow as certain its sedimentary micro of study area sandstone reservoir and have distributary channel, mouth bar, sand sheet etc., all to core in each microfacies core sample, from these samples, gather the required sample of sandstone of experimental analysis test; The rock core of core hole is systematically observed and described, determines sedimentary micro type and the sequence of sandstone reservoir;
Step 2, utilize the experimental facilities such as geochemistry, X diffraction, the sample of sandstone of collection point sedimentary micro is carried out the test of clay mineral, quartz, feldspar, carbonate rock content, obtain the achievement data such as clay mineral, quartz, feldspar, carbonatite of sample of sandstone;
Step 3, the sample of sandstone of collection is carried out microsection, scanning electron microscope, cathodeluminescence test, obtain reflection diagenetic clay mineral, quartz, feldspar, the micro-achievement datas of carbonatite such as the intergranular contact relation of sandstone, clay mineral, cementing matter, corrosion;
Step 4, statistical treatment is carried out to the reflection diagenetic These parameters data separate geology statistical method of the sample of sandstone obtained, and carry out cluster, thus respectively got the average content of core well point reflection sandstone DIAGENETIC CHARACTERISTICS AND and the clay mineral of environment, quartz, feldspar, carbonate rock; Obtain the average content of the compaction of reflection Diagenesis of sandstone type, authigenic mineral, corrosion, palaeogeothermal index; Obtain the microphoto reflecting Diagenesis of sandstone type and Diagenetic Facies;
Step 5, according to respectively get the reflection of sample of sandstone in each sedimentary micro in core well point Diagenetic Facies every evaluation index number, differentiate the sandstone diagenetic environment that core sample discloses and evaluate, in geology routinely, sandstone Diagenetic Facies naming rule carries out systematic naming method to each core sample Diagenesis of sandstone and Diagenetic Facies;
Step 6, according to all kinds of indexs acquired by abovementioned steps, determine the Diagn that each sample of sandstone of each core hole discloses and Diagenetic Facies type, set up each core hole rock core Diagenetic Facies longitudinally series, work out each core hole rock core Diagenetic Facies composite columnar section, as shown in Figure 1.
Step 7, according to above-mentioned set up core hole rock core Diagenetic Facies composite columnar section, the spontaneous potential of each Diagenetic Facies of statistical study Sandstone Cores, natural gamma, interval transit time, density, shallow side direction, dark side direction Electrical Indexes magnitude range and mean value, carry out cluster through statistical study thus set up the electrical plate of all kinds of Diagenetic Facies, and carry out all kinds of Diagenetic Facies electrically between cross analysis, the electrofacies finally setting up all kinds of Diagenetic Facies electrically differentiates polynomial expression: Y=aSP+bGR+cAC+dDEN+eRLLS+fRLLD+ wherein Y is Diagenetic Facies, a, b, c, d, e, f, for cross analysis gained constant,
Step 8, according to the electrical discriminant relation of diagenesis electrofacies that step 7 is set up, application diagenesis electrofacies process software, carries out diagenesis well-log facies recognition to all non-core wells of getting in study area, sets up every mouthful of well diagenesis electrofacies longitudinally series;
Step 9, according to every mouthful of well Diagenetic Facies data, application modeling software simulation sandstone reservoir Diagenetic Facies three-dimensional model, obtains sandstone reservoir Diagenetic Facies type and the planar characteristics of distribution of oil-gas exploration and development series of strata, for sandstone reservoir evaluation provides quantitative target.
Further, the choice criteria of this sandstone reservoir diagenesis electrofacies quantitatively characterizing parameter is: parameter type is wanted to distinguish research block sandstone reservoir Diagenetic Facies type and diagenesis system, reflection diagenesis geological process; Meet sandstone reservoir diagenesis geologic rule and the phase sequence regularity of distribution.
Further, all kinds of Diagenetic Facies can distinguish by sandstone reservoir Diagenetic Facies the classify size of each diagenetic mineral parameter quantitative value effectively clearly, and fully shows the diagenetic environment feature of all kinds of Diagenetic Facies sandstone reservoir.
Further, all kinds of Diagenetic Facies can distinguish by sandstone reservoir Diagenetic Facies the classify size of each electrical parameter quantitative values effectively clearly, sets up non-longitudinal its diagenetic series of getting core well sandstone reservoir and meeting diagenetic regularity.
Further, the classification of sandstone reservoir Diagenetic Facies and spatial distribution result want the difference that can reflect all kinds of sandstone reservoir rich accumulation of oil and gas master control influence factor.
The method of sandstone reservoir diagenesis electrofacies quantitatively characterizing provided by the invention, utilize the quantitative target of the typical rock electrical quantity of reflection sandstone reservoir DIAGENETIC CHARACTERISTICS AND and environment, the non-longitudinal phase sequence of Diagenetic Facies of getting core well sandstone reservoir of accurate evaluation, and zone of interest reservoir diagenetic phase plane distributes and rule, how effective technical information is provided to sandstone oil-gas exploration and development, optimize the favorable block of sandstone oil-gas exploration and development, improve the prediction accuracy of favorable block, improve the success ratio of exploratory development, reduce cost of exploration & development;
The present invention has following beneficial effect compared with prior art:
1) sandstone reservoir Diagenetic Facies research evaluation method has been innovated, utilize the quantitative target of the typical electrical parameter of reflection DIAGENETIC CHARACTERISTICS AND and environment, in the same microfacies of accurate understanding, the plane-based eigen of sandstone reservoir Diagenetic Facies and certain series of strata sandstone reservoir Diagenetic Facies planar characteristics of distribution and rule, provide how effective technical information to sandstone oil-gas exploration and development;
2) assess effectiveness of exploratory development is high, sandstone reservoir Diagenetic Facies evaluation of classification method is utilized to carry out Diagenetic Facies research to sandstone reservoir in target area, find out the distribution range of each series of strata sandstone Diagenetic Facies, find out the essential characteristic of all kinds of sandstone reservoir physical property, apply Oil/Gas Reservoir Assessment method on this basis to evaluate each series of strata sandstone reservoir, improve exploratory development assess effectiveness, accelerate the progress of sandstone oil-gas exploration and development;
3) success ratio of exploratory development is improved, reduce cost, the a large amount of well logging electrical data often used in sandstone oil-gas exploration and development use by the present invention, set up the electrical evaluation index of sandstone reservoir Diagenetic Facies, utilize the size of each index absolute average to distinguish different Diagenetic Facies in the same sedimentary micro of sandstone reservoir, optimize the favorable block of sandstone reservoir oil-gas exploration and development, improve the prediction accuracy of favorable block, improve the success ratio of exploratory development, reduce cost of exploration & development.
Accompanying drawing explanation
Fig. 1 is the method flow diagram of the sandstone reservoir diagenesis electrofacies quantitatively characterizing that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Below in conjunction with drawings and the specific embodiments, application principle of the present invention is further described.
As shown in Figure 1, the method for the sandstone reservoir diagenesis electrofacies quantitatively characterizing of the embodiment of the present invention comprises the following steps:
S101: same sandstone oil-gas exploration and development district, according to geologic condition and goal in research demand, chooses core hole in different sedimentary micro block and forms sample collection observation point, gather the required sample of sandstone of experimental analysis test;
S102: the rock core sample of sandstone for examination is sent to laboratory according to experimental analysis test designing requirement, and carry out the test analysis of the diagenetic mineral content such as clay mineral, quartz, feldspar, carbonate rock respectively, system obtains these indexs;
S103: by tests such as microsection, scanning electron microscope, cathodeluminescences, obtains the diagenetic micro-relevant achievement datas of reflection such as the intergranular contact relation of sandstone, clay mineral, cementing matter, corrosion;
S104: according to the series of results of sample analysis test, and Treatment Analysis is carried out to result, obtain the data such as the index of reflection sandstone DIAGENETIC CHARACTERISTICS AND and environment, thus filter out the typical Electrical Indexes characterizing sandstone diagenetic environment canonical parameter quantitative target and Diagenetic Facies;
S105: application quantitative target, differentiates sandstone diagenetic environment and Diagenetic Facies and evaluate, thus obtaining sandstone reservoir Diagenetic Facies type and planar characteristics of distribution.
The present invention is described further in conjunction with the embodiments:
Embodiment 1: concrete steps are:
Step one, in same oil-gas exploration and development block, according to geologic condition and goal in research demand, choose core hole in different sedimentary micro block and form sample collection observation point, grow as certain its sedimentary micro of study area sandstone reservoir and have distributary channel, mouth bar, sand sheet etc., all to core in each microfacies core sample, from these samples, gather the required sample of sandstone of experimental analysis test; The rock core of core hole is systematically observed and described, determines sedimentary micro type and the sequence of sandstone reservoir;
Step 2, utilize the experimental facilities such as geochemistry, X diffraction, the sample of sandstone of collection point sedimentary micro is carried out the test of clay mineral, quartz, feldspar, carbonate rock content, obtain the achievement data such as clay mineral, quartz, feldspar, carbonatite of sample of sandstone;
Step 3, the sample of sandstone of collection is carried out microsection, scanning electron microscope, cathodeluminescence test, obtain reflection diagenetic clay mineral, quartz, feldspar, the micro-achievement datas of carbonatite such as the intergranular contact relation of sandstone, clay mineral, cementing matter, corrosion;
Step 4, statistical treatment is carried out to the reflection diagenetic These parameters data separate geology statistical method of the sample of sandstone obtained, and carry out cluster, thus respectively got the average content of core well point reflection sandstone DIAGENETIC CHARACTERISTICS AND and the clay mineral of environment, quartz, feldspar, carbonate rock; Obtain the average content of the compaction of reflection Diagenesis of sandstone type, authigenic mineral, corrosion, palaeogeothermal index; Obtain the microphoto reflecting Diagenesis of sandstone type and Diagenetic Facies;
Step 5, according to respectively get the reflection of sample of sandstone in each sedimentary micro in core well point Diagenetic Facies every evaluation index number, differentiate the sandstone diagenetic environment that core sample discloses and evaluate, in geology routinely, sandstone Diagenetic Facies naming rule carries out systematic naming method to each core sample Diagenesis of sandstone and Diagenetic Facies;
Step 6, according to all kinds of indexs acquired by abovementioned steps, determine the Diagn that each sample of sandstone of each core hole discloses and Diagenetic Facies type, set up each core hole rock core Diagenetic Facies longitudinally series, work out each core hole rock core Diagenetic Facies composite columnar section, as shown in Figure 1.
Step 7, according to above-mentioned set up core hole rock core Diagenetic Facies composite columnar section, the spontaneous potential of each Diagenetic Facies of statistical study Sandstone Cores, natural gamma, interval transit time, density, shallow side direction, dark side direction Electrical Indexes magnitude range and mean value, carry out cluster through statistical study thus set up the electrical plate of all kinds of Diagenetic Facies, and carry out all kinds of Diagenetic Facies electrically between cross analysis, the electrofacies finally setting up all kinds of Diagenetic Facies electrically differentiates polynomial expression: Y=aSP+bGR+cAC+dDEN+eRLLS+fRLLD+ wherein Y is Diagenetic Facies, a, b, c, d, e, f, for cross analysis gained constant,
Step 8, according to the electrical discriminant relation of diagenesis electrofacies that step 7 is set up, application diagenesis electrofacies process software, carries out diagenesis well-log facies recognition to all non-core wells of getting in study area, sets up every mouthful of well diagenesis electrofacies longitudinally series;
Step 9, according to every mouthful of well Diagenetic Facies data, application modeling software simulation sandstone reservoir Diagenetic Facies three-dimensional model, obtains sandstone reservoir Diagenetic Facies type and the planar characteristics of distribution of oil-gas exploration and development series of strata, for sandstone reservoir evaluation provides quantitative target.
Embodiment 2, concrete steps of the present invention are:
The first step, to all core hole rock core informations in study area, carries out system observation and description, determines sedimentary micro type and the sequence of sandstone reservoir, carries out systematic sampling according to conventional core analysis test sampling standard and standard of the present invention;
Second step, carries out the test of clay mineral, quartz, feldspar, carbonate rock equal size by the sample of sandstone of collection point sedimentary micro, obtain the index of correlation data of sample of sandstone;
3rd step, carries out the tests such as microsection, scanning electron microscope, cathodeluminescence by the sample of sandstone of collection, obtain the diagenetic micro-relevant achievement datas of reflection such as the intergranular contact relation of sandstone, clay mineral, cementing matter, corrosion;
4th step, to the index of correlation data analysis process of the sample of sandstone obtained, is respectively got the average content of the clay mineral, quartz, feldspar, carbonate rock etc. of core well point reflection sandstone DIAGENETIC CHARACTERISTICS AND and environment; Obtain the average content of the index such as compaction, authigenic mineral, corrosion, palaeogeothermal reflecting Diagenesis of sandstone type further; Obtain the microphoto reflecting Diagenesis of sandstone type and Diagenetic Facies further;
5th step, according to respectively get the reflection of sample of sandstone in each sedimentary micro in core well point Diagenetic Facies every evaluation index number, differentiate the sandstone diagenetic environment that core sample discloses and evaluate, in geology routinely, sandstone Diagenetic Facies naming rule carries out systematic naming method to each core sample Diagenesis of sandstone and Diagenetic Facies;
6th step, the Diagn disclosed according to each sample of sandstone of each core hole and Diagenetic Facies type, set up each core hole rock core Diagenetic Facies longitudinally series and composite columnar section;
7th step, according to above-mentioned set up core hole rock core Diagenetic Facies composite columnar section, the spontaneous potential (SP) of each Diagenetic Facies of statistical study Sandstone Cores, natural gamma (GR), interval transit time (AC), density (DEN), shallow side direction (RLLS), the Electrical Indexes magnitude range such as dark side direction (RLLD) and mean value (electrical data is screened according to study area real data situation), set up the electrical plate of all kinds of Diagenetic Facies, and carry out all kinds of Diagenetic Facies electrically between cross analysis, the electrofacies finally setting up all kinds of Diagenetic Facies electrically differentiates polynomial expression: Y=aSP+bGR+cAC+dDEN+eRLLS+fRLLD+ wherein Y is Diagenetic Facies, a, b, c, d, e, f, for cross analysis gained constant,
8th step, according to the set up electrical discriminant relation of diagenesis electrofacies, application diagenesis electrofacies process software, carries out diagenesis well-log facies recognition to all non-core wells of getting in study area, sets up every mouthful of well diagenesis electrofacies longitudinally series;
9th step, according to every mouthful of well Diagenetic Facies data, application modeling software simulation sandstone reservoir Diagenetic Facies three-dimensional model, obtains sandstone reservoir Diagenetic Facies type and the planar characteristics of distribution of oil-gas exploration and development series of strata, for sandstone reservoir evaluation provides quantitative target.
The present invention is the solid foundation information that sandstone appraisal of petroleum exploration and constituency provide that in research block, sandstone reservoir Diagenetic Facies development characteristics and oil-gas accumulation degree are correlated with, reduce exploratory development scope, aim at exploratory development target, thus improve target target area prediction accuracy to some extent, avoid coring well point sandstone reservoir Diagenetic Facies because only understanding and not knowing its Diagenetic Facies plane distribution and can not provide accurate data and the risk of oil gas drilling failure that causes, because there is larger difference in different Diagenetic Facies sandstone reservoir rich oil gas degree, so substantially increase sandstone oil-gas exploration and development to drill successful fraction, thus accelerate the progress of sandstone oil-gas exploration and development, greatly reduce cost of exploration & development.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a method for sandstone reservoir diagenesis electrofacies quantitatively characterizing, is characterized in that, the method for this sandstone reservoir diagenesis electrofacies quantitatively characterizing comprises following method step:
Step one, in same oil-gas exploration and development block, according to geologic condition and goal in research demand, choose core hole in different sedimentary micro block and form sample collection observation point, the sedimentary micro of sandstone reservoir is grown and is had distributary channel, mouth bar, sand sheet, all there is core hole core sample in each microfacies, from sample, gather the required sample of sandstone of experimental analysis test; The rock core of core hole is systematically observed and described, determines sedimentary micro type and the sequence of sandstone reservoir;
Step 2, utilizes geochemistry, X diffraction that the sample of sandstone of collection point sedimentary micro is carried out the test of clay mineral, quartz, feldspar, carbonate rock content, obtains the achievement data of the clay mineral of sample of sandstone, quartz, feldspar, carbonatite;
Step 3, the sample of sandstone of collection is carried out microsection, scanning electron microscope, cathodeluminescence test, the intergranular contact relation of acquisition sandstone, clay mineral, cementing matter, corrosion reflect the micro-achievement data of diagenetic clay mineral, quartz, feldspar, carbonatite;
Step 4, statistical treatment is carried out to the reflection diagenetic These parameters data separate geology statistical method of the sample of sandstone obtained, and carry out cluster, thus obtain the average content of the clay mineral of each core hole point reflection sandstone DIAGENETIC CHARACTERISTICS AND and environment, quartz, feldspar, carbonate rock; Obtain the average content of the compaction of reflection Diagenesis of sandstone type, authigenic mineral, corrosion, palaeogeothermal index; Obtain the microphoto reflecting Diagenesis of sandstone type and Diagenetic Facies;
Step 5, according in each sedimentary micro in well point of respectively coring sample of sandstone reflection Diagenetic Facies every evaluation index number, the sandstone diagenetic environment that core sample discloses is differentiated and evaluated, by sandstone Diagenetic Facies naming rule in geology, systematic naming method is carried out to each core sample Diagenesis of sandstone and Diagenetic Facies;
Step 6, according to index acquired by step 2, determines the Diagn that each sample of sandstone of each core hole discloses and Diagenetic Facies type, sets up each core hole rock core Diagenetic Facies longitudinally series, works out each core hole rock core Diagenetic Facies composite columnar section;
Step 7, according to the core hole rock core Diagenetic Facies composite columnar section set up, the spontaneous potential of each Diagenetic Facies of statistical study Sandstone Cores, natural gamma, interval transit time, density, shallow side direction, dark side direction Electrical Indexes magnitude range and mean value, carry out cluster through statistical study thus set up the electrical plate of all kinds of Diagenetic Facies, and carry out all kinds of Diagenetic Facies electrically between cross analysis, the electrofacies finally setting up all kinds of Diagenetic Facies electrically differentiates polynomial expression: Y=aSP+bGR+cAC+dDEN+eRLLS+fRLLD+ wherein Y is Diagenetic Facies, a, b, c, d, e, f, for cross analysis gained constant,
Step 8, according to the electrical discriminant relation of diagenesis electrofacies that step 7 is set up, application diagenesis electrofacies process software, carries out diagenesis well-log facies recognition to all non-core holes in study area, sets up every mouthful of well diagenesis electrofacies longitudinally series;
Step 9, according to every mouthful of well Diagenetic Facies data, application modeling software simulation sandstone reservoir Diagenetic Facies three-dimensional model, obtains sandstone reservoir Diagenetic Facies type and the planar characteristics of distribution of oil-gas exploration and development series of strata, for sandstone reservoir evaluation provides quantitative target.
2. the method for sandstone reservoir diagenesis electrofacies quantitatively characterizing according to claim 1, it is characterized in that, the choice criteria of this sandstone reservoir diagenesis electrofacies quantitatively characterizing parameter is: parameter type is wanted to distinguish research block sandstone reservoir Diagenetic Facies type and diagenesis system, reflection diagenesis geological process; Meet sandstone reservoir diagenesis geologic rule and the phase sequence regularity of distribution.
3. the method for sandstone reservoir diagenesis electrofacies quantitatively characterizing according to claim 1, it is characterized in that, the classify all kinds of Diagenetic Facies of large young pathbreaker of each diagenetic mineral parameter quantitative value of sandstone reservoir Diagenetic Facies distinguishes clearly, and fully shows the diagenetic environment feature of all kinds of Diagenetic Facies sandstone reservoir.
4. the method for sandstone reservoir diagenesis electrofacies quantitatively characterizing according to claim 1, it is characterized in that, the classify all kinds of Diagenetic Facies of large young pathbreaker of each electrical parameter quantitative values of sandstone reservoir Diagenetic Facies distinguishes clearly, sets up longitudinal its diagenetic series that non-core hole sandstone reservoir meets diagenetic regularity.
5. the method for sandstone reservoir diagenesis electrofacies quantitatively characterizing according to claim 1, is characterized in that, the classification of sandstone reservoir Diagenetic Facies and spatial distribution result want the difference that can reflect all kinds of sandstone reservoir rich accumulation of oil and gas master control influence factor.
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| 成岩相-储集层预测的新途径;陈彦华;《石油实验地质》;19940920;第16卷(第3期);第274-280页 * |
| 成岩相的形成、分类与定量评价方法;邹才能;《石油勘探与开发》;20081023;第35卷(第5期);第526-540页 * |
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| CN109577962A (en) * | 2017-09-29 | 2019-04-05 | 中国石油化工股份有限公司 | Terrestrial facies pulveryte petrographic analysis method |
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