CN116738121B - Method and device for calculating basin structure settlement based on paleo-water depth and denudation recovery - Google Patents
Method and device for calculating basin structure settlement based on paleo-water depth and denudation recovery Download PDFInfo
- Publication number
- CN116738121B CN116738121B CN202311013173.2A CN202311013173A CN116738121B CN 116738121 B CN116738121 B CN 116738121B CN 202311013173 A CN202311013173 A CN 202311013173A CN 116738121 B CN116738121 B CN 116738121B
- Authority
- CN
- China
- Prior art keywords
- stratum
- basin
- depth
- paleo
- obtaining
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 29
- 238000011084 recovery Methods 0.000 title claims abstract description 18
- 238000002679 ablation Methods 0.000 claims abstract description 21
- 230000008021 deposition Effects 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- 238000012876 topography Methods 0.000 claims abstract description 11
- 230000015572 biosynthetic process Effects 0.000 claims description 28
- 238000005553 drilling Methods 0.000 claims description 25
- 238000004062 sedimentation Methods 0.000 claims description 23
- 238000010276 construction Methods 0.000 claims description 18
- 238000005056 compaction Methods 0.000 claims description 15
- 238000004364 calculation method Methods 0.000 claims description 12
- 239000013049 sediment Substances 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 208000035126 Facies Diseases 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 235000020681 well water Nutrition 0.000 description 1
- 239000002349 well water Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/08—Investigating permeability, pore-volume, or surface area of porous materials
- G01N15/088—Investigating volume, surface area, size or distribution of pores; Porosimetry
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/30—Analysis
- G01V1/301—Analysis for determining seismic cross-sections or geostructures
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/28—Processing seismic data, e.g. analysis, for interpretation, for correction
- G01V1/30—Analysis
- G01V1/306—Analysis for determining physical properties of the subsurface, e.g. impedance, porosity or attenuation profiles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/40—Seismology; Seismic or acoustic prospecting or detecting specially adapted for well-logging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/61—Analysis by combining or comparing a seismic data set with other data
- G01V2210/616—Data from specific type of measurement
- G01V2210/6161—Seismic or acoustic, e.g. land or sea measurements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/61—Analysis by combining or comparing a seismic data set with other data
- G01V2210/616—Data from specific type of measurement
- G01V2210/6169—Data from specific type of measurement using well-logging
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/62—Physical property of subsurface
- G01V2210/624—Reservoir parameters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/62—Physical property of subsurface
- G01V2210/624—Reservoir parameters
- G01V2210/6244—Porosity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V2210/00—Details of seismic processing or analysis
- G01V2210/60—Analysis
- G01V2210/64—Geostructures, e.g. in 3D data cubes
Abstract
The application discloses a method and a device for calculating basin structure settlement based on paleo-water depth and denudation recovery, comprising the following steps: determining a seismic section of the basin to be detected, carrying out stratum division on the basin to be detected, obtaining a plurality of stratum information, and obtaining the age information of each stratum of the seismic section based on the plurality of stratum information; performing time depth conversion on the age information to obtain stratum depth of each stratum; obtaining geological parameters of the basin area, and obtaining initial deposition thickness of each stratum based on the geological parameters and the stratum depths; acquiring a stratum ablation residual top interface of the seismic section, and carrying out trend extension on the stratum ablation residual top interface to obtain the original topography and ablation thickness of each stratum; acquiring global sea level change data, obtaining gradient information of the basin in each period based on the original topography of each stratum, and obtaining paleo-water depth of each period based on the global sea level change data and the gradient information; structural settlement was obtained at each period based on the paleo-water depth and the ablation thickness.
Description
Technical Field
The application relates to the technical field of sedimentary basin analysis and simulation, in particular to a method and a device for calculating basin structural settlement based on paleo-water depth and denudation recovery.
Background
The exploration and exploitation of basin oil and gas resources are inevitably not separated from the basin formation evolution analysis, the sedimentation history analysis is the most commonly used basin quantitative analysis means, and one of the key factors of basin sedimentation analysis is the determination of the ancient water depth. Although the exploitation of the current ocean oil and gas resources is mainly concentrated in a shallow water area, the research on a deep water area is inevitably required to be used as a guide, the paleo-water depth of the deep water area has large uncertainty, and the parameter greatly influences the calculation result of structural settlement, so that the determination of the paleo-water depth of the basin deep water area is one of the most critical factors. In addition, the former study on the sedimentation history of the basin rarely considers the situation of formation erosion, so that the accuracy of the basin sedimentation calculation result is affected, and larger errors are caused in the sedimentation history analysis.
Disclosure of Invention
The application aims to solve the problems in the prior art and provides a method and a device for calculating basin structure settlement based on ancient water depth and denudation recovery.
The application provides a method for calculating basin structure settlement based on paleo-water depth and denudation recovery, which comprises the following steps:
determining a seismic section of a basin to be detected, carrying out stratum division on the basin to be detected, obtaining a plurality of stratum information, and obtaining age information of each stratum of the seismic section based on the stratum information;
performing time depth conversion on the age information to obtain stratum depth of each stratum;
obtaining geological parameters of a basin area, and obtaining initial deposition thickness of each stratum based on the geological parameters and a plurality of stratum depths;
acquiring a stratum ablation residual top interface of the seismic section, and carrying out trend extension on the stratum ablation residual top interface to obtain the original topography and ablation thickness of each stratum;
acquiring global sea level change data, obtaining gradient information of each period of the basin based on the original topography of each stratum, and obtaining paleo-water depth of each period based on the global sea level change data and the gradient information;
structural settlement was obtained at each period based on the paleo-water depth and the ablation thickness.
Optionally, the formation information in the basin area is determined based on the combination of calcareous ultrafine fossil and the poriferous worm in the core drilled in the basin area.
Optionally, performing time depth conversion on the age information based on a basin time depth conversion relation formula to obtain the stratum depth of each stratum.
Optionally, the geological parameters include: basin lithology, porosity and compaction coefficient;
the formation includes an overburden formation and an underburden formation;
the process of deriving an initial deposition thickness for each formation based on the geological parameter and the formation depth includes: stripping the overburden formation and sequentially obtaining an initial deposition thickness of the underburden based on the formation depth and the porosity;
the calculation formula of the initial deposition thickness of the underlying stratum is as follows:
（1）
for initial porosity, ++>Is the compaction factor, +.>And->Is the depth of the top and bottom boundaries of the formation after debulking, < + >>And->Is the depth of the ground layer at the top and bottom boundaries today.
Optionally, the method for obtaining the paleo-water depth comprises: interpolation and proportional compensation.
Optionally, the formula for calculating the structural sedimentation is as follows:
（2）
wherein,sedimentation is constructed for the basin, units: m; />,/>And->: average densities of mantle, water and sediment, respectively; />To debulk the deposit thickness, units: m; />Is the paleo-water depth of the deposition period; />Is the change of the ancient sea level relative to the current sea level.
The application also discloses a device for calculating basin structure settlement based on ancient water depth and denudation recovery, which comprises: the system comprises a stratum depth module, a drilling data module, a sea level data module, a slope information-based paleo-water depth module, a stratum compaction and ablation module and a construction sedimentation module; the stratum depth module, the drilling data module, the sea level data module, the ancient water depth module based on gradient information, the stratum compaction and ablation module and the construction settlement module are sequentially connected;
the stratum depth module is used for acquiring stratum depths of all stratum in the basin area;
the drilling data module is used for acquiring drilling data;
the sea level data module is used for acquiring global sea level change data;
the old water depth module based on gradient information is used for calculating the old water depth of each period;
the stratum debulking and ablating module is used for acquiring the original topography and the stratum ablating thickness of each stratum;
the construction settlement module is used for acquiring construction settlement and settlement rate of the basin in each period.
The application has the following technical effects:
the method aims at solving the problems that in the prior art, the paleo-water depth inferred through basin sedimentary facies is large in error, and the paleo-water depth change is transmitted to calculation of structural sedimentation in percentage, so that deviation occurs in the result of the structural sedimentation calculation. In addition, the basin may be subject to lifting erosion during deposition, which needs to be taken into account during the backflushing analysis. The application has the advantages that on one hand, the accurate paleo-water depth is obtained by estimating the topographic gradient information between the construction units through methods such as interpolation, proportion compensation and the like, the scope of paleo-water depth is reduced, and the error caused by paleo-water depth is reduced; on the other hand, the situation of the degradation of the stratum of the sedimentary basin is considered, and the accuracy of sedimentation history analysis is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a method for settling a paleo-water depth and ablation thickness recovery structure in an embodiment of the application;
FIG. 2 is a schematic representation of stripping back compaction in an embodiment of the present application;
FIG. 3 is a diagram showing the estimation of the ancient water depth in each period by using the gradient information of the submarine topography according to the embodiment of the present application;
FIG. 4 is a schematic diagram of recovery from formation erosion using a formation trend method in accordance with an embodiment of the present application;
fig. 5 is a schematic diagram of the composition of the device for calculating the sedimentation of the old water depth and the thickness recovery structure provided in the embodiment of the application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
As shown in fig. 1, the embodiment discloses a method for calculating basin structure settlement based on paleo-water depth and denudation recovery, which comprises the following steps:
step 1: determining formation age information in a basin area by analyzing calcareous ultrafine fossil and poroid combination zone information in a core drilled in the basin area, and then obtaining information such as formation age and lithology of each stratum of an earthquake section by well-shock joint comparison analysis, wherein the formation of the tectonic sea basin is divided into a cliff group (Tg-T70), a tomb water group (T70-T60), a triad (T60-T50), a Mei Shanzu (T50-T40), a yellow current group (T40-T30), a tectonic song sea group (T30-T20) and a Ledong group (T20-T0) from old to new by comparing the drilling core in the basin area with the poroid combination zone information and the earthquake section information;
step 2: performing time-depth fitting by using drilling depth data to obtain a basin time-depth conversion relation formula, converting a time domain of double-pass travel of a seismic section into a depth domain, taking a Qiongtong basin as an example, performing power function fitting (Zhao et al, 2015) on the drilling depth data and the seismic section, and obtaining the time-depth conversion formula as follows
（3）
Step 3: parameters such as basin lithology, porosity, compaction coefficient and the like are obtained by using drilling and regional geological data, after an overlying stratum is stripped, the porosity of the underlying stratum when the underlying stratum is positioned on the ground surface at the initial stage of deposition is recovered according to a porosity-depth relation curve, then the initial deposition thickness of the underlying stratum when the underlying stratum is positioned on the ground surface is recovered, taking a Yige sea basin as an example, the mudstone density is 2.72, the initial porosity is 0.66, the compaction coefficient is 0.93, the sandstone density is 2.65, the initial porosity is 0.39, the compaction coefficient is 0.3, the data obtained by the time-depth conversion formula (3) in the step 2 is used as depth, and the depth is substituted into the formula (1) to carry out decompression calculation;
step 4: by utilizing the trend of the residual top interface of the underlying stratum, the top interface is extended according to the trend to restore the appearance of the stratum before being degraded, taking the tectonic sea basin as an example, the basin is subjected to a reverse structure in the evolution process of basin formation, the boundary between the degraded area and the stratum is extended along the trend surface, and the depth from the upper extending intersection to the bottom of the stratum is the degradation amount, so that a schematic diagram 4 can be seen specifically;
step 5: as shown in fig. 3, the ancient water depth of the basin in each period is estimated by using the ancient biological information such as the benthic borers and the like in the well drilling and the data such as the ancient coastline and the like, meanwhile, the ancient water depth of other areas in the basin is estimated by using the terrain gradient information among the construction units and using interpolation or proportion compensation and other methods with the well drilling position as the center, taking interpolation as an example, assuming that the ancient water depth in a certain period of the well drilling is 200 m, the distance between the simulated well and the well drilling is 10 km, the angle between the well drilling and the seabed in the period is 3 degrees, the gradient is uniformly changed, the simulated well water depth can be obtained through calculation, and meanwhile, the ancient water depth between the well drilling and the simulated well can be obtained through interpolation calculation;
step 6: by combining global sea level change data, parameters such as structural settlement and settlement rate of the basin in each period can be obtained through back stripping analysis, and a structural settlement rate formula is as follows:
（4）
and->For the constructional precipitation in two time periods, < > a +.>And->Two time periods are geological periods.
Example two
The embodiment discloses a method for calculating basin structure settlement based on ancient water depth and denudation recovery. The paleo-water depth is inferred by sedimentary facies:
taking a tectonic sea basin as an example, selecting a simulation well in the basin, determining stratum age information in the basin area by combining calcareous ultrafine fossil and porosities in a drilling core, and dividing into six stratum interfaces of T100 (45 Ma), T60 (23 Ma), T50 (15.9 Ma), T40 (11.7 Ma), T30 (5.7 Ma) and T0 (0 Ma), wherein stratum depth interfaces obtained through time-depth conversion are respectively: 15126 m, 9409 m, 6451 m, 3305 m, 2570 m, 66 m; as shown in FIG. 2, the initial porosity and compaction coefficients were (0.43, 0.56, 0.69, 0.7), (0.00045, cm), respectively -1 、0.000815 cm -1 、0.00118 cm -1 、0.00071 cm -1 ) The method comprises the steps of carrying out a first treatment on the surface of the And (3) sequentially stripping the stratum from old to new according to the formula (1), and recovering the original thickness of the underlying stratum.
（1）
For initial porosity, ++>Is the compaction factor, +.>And->Is the depth of the top and bottom boundaries of the formation after debulking, < + >>And->Is the depth of the current top and bottom boundaries of the stratum; the deposition phases are respectively as follows: hunan (0->20 m), coastal phase (0->50 m), coastal phase (0->50 m), shallow sea phase (50->200 m), shallow sea phase (50->200 m), shallow sea phase (50->200 m); the lithology of the formation is represented by the code as follows: 1 = sandstone, an exponential function porosity curve; 2 = mudstone, exponential function porosity curve; 3 = limestone, exponential function porosity curve; each horizon is weighted by the proportions of its various lithologies, e.g., if a horizon contains 20% sandstone and 80% mudstone, then the lithology of that horizon is encoded as: 0.2×1+0.8×2=1.8, that is, the lithology code of the horizon is 1.8, and the lithology after weighted averaging is: 1.73, 1.63, 1.68, 1.69, 1.76; global sea level change data at each period are respectively as follows: (21/>54 m）、（-34/> 26 m）、（-10/>42 m）、（-18/>19 m）、（-31/>9 m）、0 m；
The structural settlement amounts can be obtained by the formula (2) as follows: 0m, 2554 m, 3360 m, 4283 m, 4478 m, 4938 m.
（2）
Wherein,constructing a sedimentation (m) for the basin; />,/>And->: average densities of mantle, water and sediment, respectively; />Thickness (m) of the deposit after debulking; />Is the paleo-water depth of the deposition period; />Is the change of the ancient sea level relative to the current sea level.
The method calculates the obtained geomorphic gradient information of each period of the basin through interpolation, proportion compensation and other methods, and assisted by drilling paleobiodata as constraint, the paleodepth range of each period of the simulation well is 0m, 90100 m、140/>150 m、75/>90 m、70/>80 m, 66 m, while the situation that the song sea basin is degraded in the evolution process is formed, the degradation amount recovered according to the stratum trend method is about 500 m, the rest data are kept unchanged, and meanwhile, the structural settlement amounts can be obtained through the formula (2) respectively: 0m, 2524 m, 2980 m, 3865 m, 3953 m and 4438 m, the ancient water depth calculated through the terrain gradient information can effectively reduce the change range of xiao Gu water depths, the calculation error is reduced, and meanwhile, the structural settlement calculation can be more accurate through recovering the ablation quantity.
Example III
As shown in fig. 5, the embodiment discloses a device for calculating basin structure settlement based on paleo-water depth and denudation recovery, comprising: the system comprises a stratum depth module, a drilling data module, a sea level data module, a slope information-based paleo-water depth module, a stratum compaction and ablation module and a construction sedimentation module; the stratum depth module, the drilling data module, the sea level data module, the ancient water depth module based on gradient information, the stratum compaction and ablation module and the construction settlement module are sequentially connected;
the stratum depth module is used for acquiring stratum depths of all stratum in the basin area;
the drilling data module is used for acquiring drilling data;
the sea level data module is used for acquiring global sea level change data;
the old water depth module based on gradient information is used for calculating the old water depth of each period;
the stratum debulking and ablating module is used for acquiring the original topography and the stratum ablating thickness of each stratum;
the construction settlement module is used for acquiring construction settlement and settlement rate of the basin in each period.
The foregoing has shown and described the basic principles, principal features and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present application, and various changes and modifications may be made without departing from the spirit and scope of the application, which is defined in the appended claims. The scope of the application is defined by the appended claims and equivalents thereof.
Claims (5)
1. A method for calculating basin construction settlement based on paleo-water depth and denudation recovery, comprising:
determining a seismic section of a basin to be detected, carrying out stratum division on the basin to be detected, obtaining a plurality of stratum information, and obtaining age information of each stratum of the seismic section based on the stratum information;
performing time depth conversion on the age information to obtain stratum depth of each stratum;
obtaining geological parameters of a basin area, and obtaining initial deposition thickness of each stratum based on the geological parameters and a plurality of stratum depths;
acquiring a stratum ablation residual top interface of the seismic section, and carrying out trend extension on the stratum ablation residual top interface to obtain the original topography and ablation thickness of each stratum;
acquiring global sea level change data, obtaining gradient information of each period of the basin based on the original topography of each stratum, and obtaining paleo-water depth of each period based on the global sea level change data and the gradient information;
obtaining structural sedimentation in each period based on the ancient water depth and the denudation thickness;
the method for obtaining the paleo-water depth comprises the following steps: interpolation and proportional compensation;
the structural sedimentation is calculated as follows:
wherein (1)>Sedimentation is constructed for the basin, units: m;,/>and->Average densities of mantle, water and sediment, respectively; />To debulk the deposit thickness, units: m;is the paleo-water depth of the deposition period; />Is the change of the ancient sea level relative to the current sea level.
2. The method for calculating basin construction settlement based on paleo-water depth and ablation recovery of claim 1, wherein the in-basin formation information is determined based on calcareous ultrafine fossil and porosities combined belt information in the core of the well in the basin area.
3. The method for calculating basin structure settlement based on paleo-water depth and denudation recovery of claim 1, wherein the age information is subjected to time-depth conversion based on a basin time-depth conversion relation formula to obtain stratum depths of all stratum.
4. The method for calculating basin construction settlement based on paleo-water depth and denudation recovery of claim 1,
the geological parameters include: basin lithology, porosity and compaction coefficient;
the formation includes an overburden formation and an underburden formation;
the process of deriving an initial deposition thickness for each formation based on the geological parameter and the formation depth includes: stripping the overburden formation and sequentially obtaining an initial deposition thickness of the underburden based on the formation depth and the porosity;
the calculation formula of the initial deposition thickness of the underlying stratum is as follows:
in (1) the->For initial porosity, ++>Is the compaction factor, +.>And->Is the depth of the top and bottom boundaries of the formation after debulking, < + >>And->Is the depth of the ground layer at the top and bottom boundaries today.
5. A device for calculating basin construction settlement based on paleo-water depth and denudation recovery, comprising: the system comprises a stratum depth module, a drilling data module, a sea level data module, a stratum debulking and denudation module, a paleo-water depth module based on gradient information and a construction settlement module; the stratum depth module, the drilling data module, the sea level data module, the stratum compaction and ablation module, the ancient water depth module based on gradient information and the construction settlement module are sequentially connected;
the stratum depth module is used for acquiring stratum depths of all stratum in the basin area, and specifically comprises the following steps: acquiring age information of stratum information in a seismic section of a basin to be detected, and performing time depth conversion based on the age information to obtain stratum depth;
the drilling data module is used for acquiring drilling data;
the sea level data module is used for acquiring global sea level change data;
the stratum debulking and ablating module is used for acquiring the original topography and the stratum ablating thickness of each stratum, and specifically comprises the following steps: obtaining geological parameters based on drilling data, obtaining initial deposition thickness of each stratum based on the geological parameters and the stratum depths, and carrying out trend extension on a stratum ablation residual top interface based on the initial deposition thickness to obtain original topography and ablation thickness of each stratum;
the old water depth module based on gradient information is used for calculating the old water depth of each period based on an interpolation method and a proportional sedimentation method, and specifically comprises the following steps: obtaining gradient information of each period of the basin based on the original landform of each stratum, and obtaining paleo-water depth of each period based on the global sea level change data and the gradient information;
the construction sedimentation module is used for acquiring the construction sedimentation and sedimentation rate of the basin in each period based on the thickness of the denudation and the depth of the paleo-water;
wherein, the formula of calculation of the structural sedimentation is as follows:
wherein (1)>Sedimentation is constructed for the basin, units: m; />,/>And->Average densities of mantle, water and sediment, respectively; />To debulk the deposit thickness, units: m; />Is the paleo-water depth of the deposition period; />Is the change of the ancient sea level relative to the current sea level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311013173.2A CN116738121B (en) | 2023-08-14 | 2023-08-14 | Method and device for calculating basin structure settlement based on paleo-water depth and denudation recovery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311013173.2A CN116738121B (en) | 2023-08-14 | 2023-08-14 | Method and device for calculating basin structure settlement based on paleo-water depth and denudation recovery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116738121A CN116738121A (en) | 2023-09-12 |
| CN116738121B true CN116738121B (en) | 2023-12-12 |
Family
ID=87909969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311013173.2A Active CN116738121B (en) | 2023-08-14 | 2023-08-14 | Method and device for calculating basin structure settlement based on paleo-water depth and denudation recovery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116738121B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111475920A (en) * | 2020-03-13 | 2020-07-31 | 中海石油深海开发有限公司 | Method and system for acquiring ancient water depth of deep basin, electronic equipment and storage medium |
| CN112861322A (en) * | 2021-01-15 | 2021-05-28 | 哈尔滨工程大学 | Quantitative analysis method and system for submarine stepped landform evolution |
-
2023
- 2023-08-14 CN CN202311013173.2A patent/CN116738121B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111475920A (en) * | 2020-03-13 | 2020-07-31 | 中海石油深海开发有限公司 | Method and system for acquiring ancient water depth of deep basin, electronic equipment and storage medium |
| CN112861322A (en) * | 2021-01-15 | 2021-05-28 | 哈尔滨工程大学 | Quantitative analysis method and system for submarine stepped landform evolution |
Non-Patent Citations (2)
| Title |
|---|
| 康海霞.潜江凹陷潜江组剥蚀恢复与沉积体系研究.中国博士学位论文全文数据库（基础科学辑）.2015,(5),第A011-44页. * |
| 潜江凹陷潜江组剥蚀恢复与沉积体系研究;康海霞;中国博士学位论文全文数据库（基础科学辑）(5);第A011-44页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116738121A (en) | 2023-09-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Parolai et al. | New relationships between Vs, thickness of sediments, and resonance frequency calculated by the H/V ratio of seismic noise for the Cologne area (Germany) | |
| Berne et al. | Pleistocene forced regressions and tidal sand ridges in the East China Sea | |
| O'Byrne et al. | Sequence, parasequence, and intraparasequence architecture of the Grassy Member, Blackhawk Formation, Book Cliffs, Utah, USA | |
| McFarlan Jr | Radiocarbon dating of late Quaternary deposits, south Louisiana | |
| CN111766630B (en) | Restoration method for ancient landform of basin | |
| CN104765065B (en) | Method and device for determining sedimentary stratum ancient landform | |
| CN107991714B (en) | Quantification method based on lake basin ancient terrain recovery | |
| CN101929973A (en) | Quantitative calculation method for hydrocarbon saturation of fractured reservoir | |
| Simenson et al. | Depositional facies and petrophysical analysis of the Bakken Formation, Parshall Field and surrounding area, Mountrail County, North Dakota | |
| CN111475920B (en) | Method and system for acquiring ancient water depth of deep basin, electronic equipment and storage medium | |
| CN104122602A (en) | Method and device for acquiring erosion thickness of sedimentary basin | |
| SCHEIBER-ENSLIN et al. | New depth maps of the Main Karoo Basin, used to explore the Cape isostatic anomaly, South Africa | |
| CN106405653A (en) | Unconformity stratum denudation amount recovery method | |
| CN112861322B (en) | Quantitative analysis method and system for submarine stepped landform evolution | |
| CN112180468B (en) | Gravel rock lithofacies prediction method under control of isochronous stratum model | |
| CN116738121B (en) | Method and device for calculating basin structure settlement based on paleo-water depth and denudation recovery | |
| CN114660269B (en) | Method for recovering natural gas dynamic hiding process of ancient buried hill | |
| CN105093269A (en) | Method for determining denudation quantity | |
| CN113970796B (en) | Method for accurately recovering paleo-water depth of sedimentary basin | |
| Peijs-van Hilten et al. | Heterogeneity modeling and geopseudo upscaling applied to waterflood performance prediction of an incised valley reservoir: Countess YY Pool, southern Alberta, Canada | |
| CN109031443B (en) | Method for recovering denudation amount based on fixed years of Milnaciaceae Virginia gyrus | |
| CN112083483A (en) | Sedimentary ancient landform restoration method based on rock physical model de-compaction correction | |
| Stoker et al. | The importance of stratigraphic plays in the undiscovered resources of the UK Continental Shelf | |
| CN114047559B (en) | Method for determining uranium ore distribution area | |
| CN114624775B (en) | Comprehensive quantitative restoration method for ancient water depth of sedimentary lake basin |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |