CN107144566A - The method that pulveryte anisotropism is mutually characterized using chemical deposition - Google Patents
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Abstract
The invention provides a kind of method that utilization chemical deposition mutually characterizes pulveryte anisotropism, belong to oil and gas exploration field, can more quick, directly perceived, large area, high-resolution meticulous depiction and analysis pulveryte anisotropism.This method characterizes pulveryte anisotropism by the analysis of chemical deposition phase, specifically includes following steps：The two is overlapped to the pulveryte sample surfaces photo and inorganic geochemistry pantogen bit distribution information of petrographic thin section yardstick, divides chemical deposition phase by rock core on synchronous acquisition two dimensional surface；Inorganic geochemistry element information in situ, quantitative analysis pulveryte chemical deposition phase are extracted on two dimensional surface；Pulveryte anisotropism is portrayed and analyzes by the division and quantitative analysis process of above-mentioned chemical deposition phase.
Description
Technical field
The present invention relates to oil and gas exploration field, more particularly to pulveryte field, and in particular to and utilization chemistry-
The method that sedimentary facies characterizes pulveryte anisotropism.
Background technology
Pulveryte lithology is thinner, and color is more uniform, it is difficult to which with the naked eye Direct Recognition pulveryte hand specimen is heavy
Product construction and variation of lithological, Division of Sedimentary Facies that can only be more rough, while pulveryte anisotropism is strong, in centimetre even milli
Meter level just not may occur in which change, and conventional analysis means analytical cycle is long at present, and be difficult to representative, portion in sampling
Dividing needs the analytical test means carried out again after sample comminution is mixed that key message can be caused to be covered by substantial amounts of garbage,
Cause the uncertainty of analysis, it is difficult to the high-resolution meticulous depiction pulveryte of quicklook large area.
Exploration and development for unconventionaloil pool is, it is necessary to set up fine lithology model, such as when analyzing compressibility, with regard to needing
Accurately to distinguish the distribution of terrigenous clastic silicon and biogenesis silicon.And in sedimentary rock deposition process, depositional environment, material resource class
Type etc. can be caused in the uneven distribution of inorganic geochemistry element spatially, existing analysis method, not from above-mentioned
Aspect effectively analyzes depositional environment and material resource type of pulveryte etc., can not effective meticulous depiction fine-grained sediment more directly perceived
The anisotropism of rock, reflects the feature of pulveryte, so as to can not provide finer to the exploration and development of unconventionaloil pool
Lithology model and reliable facies tract screen work.
The content of the invention
Portray and divide by dividing and analyzing pulveryte chemistry-sedimentary facies it is an object of the invention to provide one kind
The method for analysing pulveryte anisotropism, can more quick, directly perceived, large area, high-resolution meticulous depiction fine-grained sediment
Rock anisotropism.
The technical scheme is that, the method that pulveryte anisotropism is characterized using chemistry-sedimentary facies, specific bag
Include following steps：
It is synchronous to obtain rock core on two dimensional surface to the pulveryte sample surfaces photo of petrographic thin section yardstick and inorganic
Geochemistry pantogen bit distribution information, the two is overlapped, and divides chemistry-sedimentary facies；
Inorganic geochemistry element information in situ, quantitative analysis pulveryte chemistry-deposition are extracted on two dimensional surface
Phase；
Pulveryte point homogenieity is portrayed and analyzes by the division and quantitative analysis process of above-mentioned chemistry-sedimentary facies.
As preferred technical scheme, the division chemistry-sedimentary facies is concretely comprised the following steps：
(1) to 1mm2-100dm2The pulveryte sample surfaces of size are processed by shot blasting, obtain flat surface；
(2) high pixel sample surfaces photo is obtained, color sample, macroscopic sedimentary structure and rock are observed by photo
Stone structure；
(3) sample surfaces inorganic geochemistry pantogen bit distribution figure is obtained, the coherent element for characterizing different minerals is existed
Superposition is combined in plane, petrogenic element constitutional diagram is formed, the distributed intelligence of mineral in the plane is obtained, with reference to the ancient ring of reflection
Border, the element index of material resource type divide chemical phase；
(4) high pixel sample surfaces photo and petrogenic element constitutional diagram are overlapped, divide chemistry-sedimentary facies.
It is preferred that, macroscopic sedimentary structure described in the step (2) is due to that color and granularity change institute can be straight
Connect the sedimentary structure observed.
It is preferred that, inorganic geochemistry element is more than or equal to including period of element atom ordinal number in the step (3)
11 element, it, which is distributed, utilizes gray-scale map displaying；
It is preferred that, coherent element includes Al, K, Si, Ca, Mg, Fe, Mn wherein in the step (3)：Al, K, Si combination refer to
Show clay mineral and feldspar, Si indicates quartz, silicoide is referred to as above；Ca indicates calcite, and Ca, Mg combination indicate white clouds
Stone, Ca, Mg, Fe, Mn combination indicates ankerite, and carbonate mineral is referred to as above；Independent Fe indicates pyrite.
It is preferred that, the coherent element for characterizing different minerals is combined to the tool of superposition in the plane in the step (3)
Gymnastics conduct：
Different colours are assigned by different elements, the high position brightness of constituent content is big, and the low position brightness of constituent content is low,
Then directly it is superimposed.Different mineral show different color combinations in the plane.
It is preferred that, chemical phase partitioning standards are reflected by element combinations in the step (3) mineral composition, palaeoenvironment
Type and material resource type carry out permutation and combination.
It is preferred that, it is mutually to be combined according to chemistry with petrofacies that chemistry-sedimentary facies is divided in the step (4), is formed many
Chemistry-sedimentary facies is planted, including agensis chemistry-sedimentary facies.
As preferred technical scheme, the analysing content of the quantitative analysis pulveryte chemistry-sedimentary facies is material resource
Type and palaeoenvironment.
Compared with prior art, the invention has the advantages that：
(1) present invention firstly provides the concept with utilization chemistry-sedimentary facies, inorganic geochemistry information pair has been considered
Material resource type and palaeoenvironmental response in deposition process, by inorganic geochemistry information in situ and sample photo on two dimensional surface
The sedimentary facies showed is overlapped, can more the high-resolution meticulous depiction pulveryte of quicklook large area it is non-
Matter, reflection pulveryte Sediment Source and palaeoenvironment feature；
(2) method in situ for obtaining element information quantitative analysis pulveryte chemistry-sedimentary facies of the invention, can keep away
Exempt from conventional analysis because sample in under-represented and sample preparation it is artificial it is homogeneous caused by the not foot phenomenon that is blanked of key message,
More structurally sound facies tract screen work is provided for follow-up petrophysical parameter analysis.
Brief description of the drawings
Fig. 1 is the flow chart of the method for the sign pulveryte anisotropism of the embodiment of the present invention；
Fig. 2 is petrogenic element constitutional diagram and the sample photo stacking chart of the embodiment of the present invention；
Fig. 3 is the two-dimensional element content flat distribution map of the embodiment of the present invention；
Fig. 4 is that the spontaneous silicon (biogenesis silicon and cementing silicon) and chip silicon of the embodiment of the present invention differentiate plate；
Fig. 5 is the spontaneous silicon of different lithology (biogenesis silicon and cementing silicon) and chip silico analysis figure of the embodiment of the present invention；
Fig. 6 is the palaeoenvironment quantitative analysis figure of the embodiment of the present invention.
Embodiment
The technical scheme in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model that the present invention is protected
Enclose.
The embodiments of the invention provide the method that a kind of utilization chemistry-sedimentary facies characterizes pulveryte anisotropism,
Oil and gas exploration field, " chemistry-sedimentary facies (the Chemo-sedimentary facies) " of pulveryte refers to：Pass
System sedimentary facies is superimposed with " environment instructions " element (mineral) and combined, and can be apparent in two dimension and analyzes fine-grained sediment exactly
Composition, structure and construction, and deposit source and depositional environment.
Specifically, the above method comprises the following steps：
S1：It is synchronous to obtain rock core on two dimensional surface to the pulveryte sample surfaces photo of petrographic thin section yardstick and inorganic
Geochemical elements original position distributed intelligence, the two is overlapped, and divides chemistry-sedimentary facies.
In this step, as shown in figure 1, sample surfaces photo can obtain the color, sedimentary structure and rock texture of sample
Information, inorganic geochemistry pantogen bit distribution can obtain the letters such as element plane distribution, sedimentary structure, coherent element combination
Breath, the distributed intelligence in situ of sample surfaces photo and inorganic geochemistry element is superimposed, intuitively can quickly divide chemistry-
Sedimentary facies.Chemistry-sedimentary facies two dimensional surface is divided into the work of sxemiquantitative, can reach quicklook large area high-resolution essence
The thin purpose for portraying pulveryte anisotropism.
S2：Inorganic geochemistry element information in situ, quantitative analysis pulveryte chemistry-heavy are extracted on two dimensional surface
Product phase.
In this step, as shown in figure 1, by source analyte type and palaeo-environment analysis, above-mentioned two dimensional surface can be improved
Analysis, finer chemistry-sedimentary facies research is carried out to pulveryte.
S3：Pulveryte point homogeneous is portrayed and analyzes by the division and quantitative analysis process of above-mentioned chemistry-sedimentary facies
Property.
This step by it is above-mentioned intuitively portray and quantitative analysis just can comprehensively react pulveryte it is non-
Matter feature, so that the reservoir and hydrocarbon source rock research for fine and close oil gas provide important technical support.
As preferred embodiment, concretely comprising the following steps for chemistry-sedimentary facies is divided：
s1：To 1mm2-100dm2The pulveryte sample surfaces of size are processed by shot blasting, obtain flat surface.
s2：High pixel sample surfaces photo is obtained, color sample, macroscopic sedimentary structure and rock are observed by photo
Stone structure.
In this step, macroscopic sedimentary structure is due to the deposition structure that color and granularity change can be observed directly
Make.
s3：Sample surfaces inorganic geochemistry pantogen bit distribution figure is obtained, the coherent element for characterizing different minerals is existed
Superposition is combined in plane, petrogenic element constitutional diagram is formed, the distributed intelligence of mineral in the plane is obtained, with reference to the ancient ring of reflection
Border, the element index of material resource type divide chemical phase.
In this step, inorganic geochemistry element includes the element that period of element atom ordinal number is more than or equal to 11, its
Distribution utilizes gray-scale map displaying.
Coherent element includes Al, K, Si, Ca, Mg, Fe, Mn；Wherein：Al, K, Si combination indicate clay mineral and feldspar, Si
Quartz is indicated, silicoide is referred to as above；Ca indicates calcite, and Ca, Mg combination indicate dolomite, Ca, Mg, Fe, Mn combination
Ankerite is indicated, carbonate mineral is referred to as above；Independent Fe indicates pyrite.
The coherent element for characterizing different minerals is combined into the concrete operations of superposition in the plane is：
Different colours are assigned by different elements, the high position brightness of constituent content is big, and the low position brightness of constituent content is low,
Then directly it is superimposed, different mineral show different color combinations in the plane, are clear that mineral flat accordingly
Distribution on face.
Mineral composition, palaeoenvironment type and the material resource type that chemical phase partitioning standards are reflected by element combinations are arranged
Row combination.It is chemical to be mutually described as：Mineral composition-palaeoenvironment type-material resource type (such as siliceous-arid-oxidation-shallow salt water-
External source phase, wherein siliceous expression mineral composition is predominantly siliceous, arid-oxidation-shallow salt water represents palaeoenvironment type, outer source-representation
Material resource type).
s4：High pixel sample surfaces photo and petrogenic element constitutional diagram are overlapped, chemistry-sedimentary facies is divided.
In this step, it is mutually to be combined according to chemistry with petrofacies to divide chemistry-sedimentary facies, forms a variety of chemistry-depositions
Phase, including agensis chemistry-sedimentary facies.
In order to become apparent from introducing utilization chemistry-sedimentary facies sign pulveryte that the embodiment of the present invention is provided in detail
The method of anisotropism, is illustrated below with reference to specific embodiment.
Analyzed with the careless ditch group of Junggar Basin Jimusaer Sag reed and Sichuan Basin Longma small stream group sample.
S1：It is synchronous to obtain rock core on two dimensional surface to the pulveryte sample surfaces photo of petrographic thin section yardstick and inorganic
Geochemical elements original position distributed intelligence, the two is overlapped, and divides chemistry-sedimentary facies.
(1) to 1mm2-100dm2The pulveryte sample surfaces of size are processed by shot blasting, obtain flat surface.
(2) high pixel sample surfaces photo is obtained, color sample, macroscopic deposition structure can be observed by photo
Make, rock texture.
As shown in Fig. 2 Fig. 2 a are generally grey mud stone, sedimentary structure is visually difficult to；Fig. 2 b are generally grey mud stone,
Naked eyes are difficult to sedimentary structure；It is siltstone on the left of Fig. 2 c, right side is mud stone, it is seen that parallel bedding, cross-bedding；Fig. 2 d are
Black shale, it is seen that the laminated structure of shale.
(3) sample surfaces inorganic geochemistry pantogen bit distribution figure is obtained, the coherent element for characterizing different minerals is existed
Superposition is combined in plane, petrogenic element constitutional diagram is formed, the distributed intelligence of mineral in the plane is obtained, with reference to the ancient ring of reflection
Border, the element index of material resource type divide chemical phase.
As shown in Figure 3 a, pantogen bit distribution analysis is carried out to the careless ditch group typical sample of reed, it is understood that sub-body Al, K,
Si contents are high, can be set to siliceous, and Mn, Fe content are low, can be set to humidity, and Mo contents are high, can be set to reduction, and Zr contents height can be determined
For deep water, Sr contents are low, can be set to fresh water, and Ti content is high and consistent with Al, K, Si distribution, can be set to external source, accordingly the sample
Chemistry on the right side of product is mutually siliceous-humidity-reduction-depth fresh water-external source phase, visible Ca, Mg Spring layer in left side, each member in these regions
Cellulose content with right side on the contrary, carbonate-arid-oxidation-light water-endogenous phase can be set to, in left side Ca, Mg relative low value area,
Other elements are close with right side, can be described as siliceous-humidity-reduction-depth fresh water-external source phase.
(4) high pixel sample surfaces photo and petrogenic element constitutional diagram are overlapped, divide chemistry-sedimentary facies.
As shown in Fig. 2 after sample photo and coherent element constitutional diagram are overlapped, can be recognized in Fig. 2 e and Fig. 2 f
The sedimentary structure of None- identified in photo, sedimentary structure is more obvious in figure 2g.Fig. 2 e sample is same sample with Fig. 3,
Sample is divided into two kinds of chemistry-sedimentary facies with reference to photographic intelligence, is respectively that right side and left side Ca, Mg low value area can be described as ash
Siliceous-humidity-reduction-depth fresh water-external source the mud stone phase of color, left side Ca, Mg Spring layer can be described as grey carbonate-arid-oxygen
Change-light water-endogenous marlaceous facies.
S2：Inorganic geochemistry element information in situ, quantitative analysis pulveryte chemistry-heavy are extracted on two dimensional surface
Product phase.
Understand that an important content of research chemistry-sedimentary facies is to recognize material resource type and palaeoenvironment according to step S1, its
Middle material resource type can be divided into endogenous and external source, spontaneous silicon (including biogenesis silicon and cementing silicon, Biogenic and
Authogenic Silica, abbreviation BnA-Si) belong to endogenous, terrigenous clastic silicon (Terrigenous clastic abbreviations TC-
Si external source) is belonged to.
Exemplified by recognizing spontaneous silicon and terrigenous clastic silicon, Sichuan Basin Longma small stream group, Junggar Basin Jimusar are chosen
The careless ditch group of depression reed and Erdos extension group sample are analyzed.
Compressibility, as important evaluation index, thought that Si contents were higher and pressed in the past in unconventionaloil pool exploration and development
Property is better, recognizes that content of the spontaneous silicon in silicon is higher recently, compressibility just can be better, therefore quickly effectively recognize spontaneous silicon
It is significant to unconventionaloil pool exploration and development.Closed first with Ti elements and Si elements in the distributed combination of two dimensional surface
System can identify terrigenous clastic silicon and biogenesis silicon, and Fig. 3 a are the careless ditch group mud stone of reed, and Fig. 3 b are Longma small stream group mud shale,
The local Ti contents that Si contents are high in Fig. 3 a are high, are shown as terrigenous clastic silicon, the high local Ti contents of Si contents are low in fig 3b,
It is shown as spontaneous silicon.In fine-grained sediment, Lu Yuan clay minerals, potassium feldspar and albite include Al and Si, terrigenous clastic silicon and
Spontaneous silicon only includes SiO2, pass through the chemical formula of different minerals, and montmorillonite and pure SiO2Proportionate relationship, Si- can be obtained
Al corresponding relation curve, as shown in fig. 4 a, chooses montmorillonite and pure SiO2For 3：The curve of 7 ratios is line of demarcation, because
On the left of this line of demarcation, SiO2Have comparative advantage, on right side, clay mineral has comparative advantage.In montmorillonite：SiO2=3:7 curves
Right side and near zone represent terrigenous clastic enrichment, left field can represent spontaneous silicon can also represent terrigenous clastic quartz
Enrichment, it is therefore desirable to spontaneous silicon and terrigenous clastic quartz are distinguished using Si and Ti, for the quartzy enrichment positions Si of terrigenous clastic
Content is higher, and Ti contents are higher, totally relatively low for spontaneous silicon enrichment positions Ti contents, sets up Si-Ti corresponding relation curves, draws
Spontaneous silicon and terrigenous clastic silicon is divided to differentiate plate, as shown in Figure 4.
Different lithology data input is differentiated into plate, Si that can be effectively in the quantitative identification lithology whether be spontaneous silicon with
Terrigenous clastic silicon, as shown in figure 5, the Si in Ordos Basin extension group siltstone is essentially from terrigenous clastic, Junggar Basin
Si in the careless ditch group siltstone of ground Jimusaer Sag reed is essentially from terrigenous clastic silicon, on a small quantity from spontaneous silicon, the Sichuan Basin
Longma small stream group mud shale contains more spontaneous silicon.
Palaeoenvironment can include weather, Redox Condition, four aspects of the depth of water and water salinity, choose the Junggar Basin
Jimusaer Sag reed grass ditch group sample carries out palaeo-environment analysis using this method, as shown in fig. 6, can draw this sample in S1
It is divided into three chemistry-sedimentary facies, conventional sampling method may only get a chemistry-sedimentary facies or by three chemistry-depositions
Mix together, the data in situ proposed using this method, with reference to palaeoenvironment calculating parameter will recognize three chemistry-
Sedimentary facies has notable difference.Region where Object-1 and Object-4 has obvious arid, oxidation, shallow water, salt water
Palaeoenvironment feature, Object-2 and Object-5 have moist, secondary oxidation, compared with shallow water, compared with the palaeoenvironment feature of salt water,
Object-3 and Object-6 has obvious moist, reduction, compared with the palaeoenvironment feature of deep water, fresh water.
S3：Pulveryte point homogeneous is portrayed and analyzes by the division and quantitative analysis process of above-mentioned chemistry-sedimentary facies
Property.
By above-mentioned analysis, inorganic geochemistry information has been considered to material resource type in deposition process and palaeoenvironmental
Response, inorganic geochemistry information in situ and sample photo are overlapped on two dimensional surface, can more quicklook it is big
The meticulous depiction pulveryte anisotropism of area high resolution, reflection pulveryte Sediment Source and palaeoenvironment feature；
The method in situ for obtaining element information quantitative analysis pulveryte chemistry-sedimentary facies is proposed first, can be avoided the occurrence of often
The under-represented not foot phenomenon for covering key message after homogeneous with sample comminution of sampling occurred in rule analysis, is follow-up rock
Physical Property Analysis provide more structurally sound facies tract screen work.
By above-mentioned steps, the present invention can more effectively hold the aeolotropic characteristics of pulveryte, be fine and close oil
Reservoir and the hydrocarbon source rock research of gas provide important technical support.
Claims (9)
1. the method for pulveryte anisotropism is characterized using chemistry-sedimentary facies, it is characterised in that specifically include following step
Suddenly：
It is synchronous to obtain rock core on two dimensional surface to the pulveryte sample surfaces photo of petrographic thin section yardstick and inorganic geochemical
Pantogen bit distribution information is learned, the two is overlapped, chemistry-sedimentary facies is divided；
Inorganic geochemistry element information in situ, quantitative analysis pulveryte chemistry-sedimentary facies are extracted on two dimensional surface；
Pulveryte anisotropism is portrayed and analyzes by the division and quantitative analysis process of above-mentioned chemistry-sedimentary facies.
2. the method that utilization chemistry according to claim 1-sedimentary facies characterizes pulveryte anisotropism, its feature exists
In described to divide concretely comprising the following steps for chemistry-sedimentary facies：
(1) to 1mm2-100dm2The pulveryte sample surfaces of size are processed by shot blasting, obtain flat surface；
(2) high pixel sample surfaces photo is obtained, color sample, macroscopic sedimentary structure and rock knot are observed by photo
Structure；
(3) sample surfaces inorganic geochemistry pantogen bit distribution figure is obtained, the coherent element of different minerals will be characterized in plane
On be combined superposition, form petrogenic element constitutional diagram, obtain the distributed intelligence of mineral in the plane, with reference to reflection palaeoenvironment,
The element index of material resource type divides chemical phase；
(4) high pixel sample surfaces photo and petrogenic element constitutional diagram are overlapped, divide chemistry-sedimentary facies.
3. the method that utilization chemistry according to claim 2-sedimentary facies characterizes pulveryte anisotropism, its feature exists
Sink in, macroscopic sedimentary structure described in the step (2) is due to color and granularity change can be observed directly
Product construction.
4. the method that utilization chemistry according to claim 2-sedimentary facies characterizes pulveryte anisotropism, its feature exists
In inorganic geochemistry element includes the element that period of element atom ordinal number is more than or equal to 11, its point in the step (3)
Cloth is shown using gray-scale map.
5. the method that utilization chemistry according to claim 4-sedimentary facies characterizes pulveryte anisotropism, its feature exists
In,
Coherent element includes Al, K, Si, Ca, Mg, Fe, Mn in the step (3)；
Wherein：Al, K, Si combination indicate clay mineral and feldspar, and Si indicates quartz, silicoide is referred to as above；
Ca indicates calcite, and Ca, Mg combination indicate dolomite, and Ca, Mg, Fe, Mn combination indicate ankerite, carbon are referred to as above
Hydrochlorate mineral；
Independent Fe indicates pyrite.
6. the method that utilization chemistry according to claim 5-sedimentary facies characterizes pulveryte anisotropism, its feature exists
In,
The coherent element for characterizing different minerals is combined into the concrete operations of superposition in the plane in the step (3) is：Will
Different elements assign different colours, and the high position brightness of constituent content is big, and the low position brightness of constituent content is low, then directly folds
Plus.
7. the method that utilization chemistry according to claim 6-sedimentary facies characterizes pulveryte anisotropism, its feature exists
In chemical phase partitioning standards are reflected by element combinations in the step (3) mineral composition, palaeoenvironment type and material resource class
Type carries out permutation and combination.
8. the method that utilization chemistry according to claim 2-sedimentary facies characterizes pulveryte anisotropism, its feature exists
In it is mutually to be combined according to chemistry with petrofacies that chemistry-sedimentary facies is divided in the step (4), forms a variety of chemistry-depositions
Phase, including agensis chemistry-sedimentary facies.
9. the method that utilization chemistry according to claim 1-sedimentary facies characterizes pulveryte anisotropism, its feature exists
In the analysing content of the quantitative analysis pulveryte chemistry-sedimentary facies is material resource type and palaeoenvironment.
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| CN110794115A (en) * | 2019-11-13 | 2020-02-14 | 中国石油大学(华东) | Quantitative characterization method of biological quartz of fine-grained sedimentary rock |
| CN112113958A (en) * | 2019-06-20 | 2020-12-22 | 中国石油化工股份有限公司 | Geochemical quantitative characterization method and system for shale striated layer |
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| 吴靖 等: ""湖相细粒沉积模式—以东营凹陷古近系沙河街组四段上亚段为例"", 《石油学报》 * |
| 张顺 等: ""东营凹陷半湖深—深湖细粒沉积岩岩相类型及特征"", 《中国石油大学学报（自然科学版）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109190953A (en) * | 2018-08-22 | 2019-01-11 | 中国石油化工股份有限公司 | Terrestrial lake basin mud shale sedimentary system division methods |
| CN112113958A (en) * | 2019-06-20 | 2020-12-22 | 中国石油化工股份有限公司 | Geochemical quantitative characterization method and system for shale striated layer |
| CN110794115A (en) * | 2019-11-13 | 2020-02-14 | 中国石油大学(华东) | Quantitative characterization method of biological quartz of fine-grained sedimentary rock |
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| Publication number | Publication date |
|---|---|
| CN107144566B (en) | 2019-12-27 |
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