CN103942842A - Embedded meandering stream sand body modeling method - Google Patents
Embedded meandering stream sand body modeling method Download PDFInfo
- Publication number
- CN103942842A CN103942842A CN201410101739.1A CN201410101739A CN103942842A CN 103942842 A CN103942842 A CN 103942842A CN 201410101739 A CN201410101739 A CN 201410101739A CN 103942842 A CN103942842 A CN 103942842A
- Authority
- CN
- China
- Prior art keywords
- model
- lateral accretion
- accretion interbed
- modeling
- interbed
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 48
- 239000004576 sand Substances 0.000 title abstract description 8
- 239000011229 interlayer Substances 0.000 claims abstract description 12
- 239000010410 layer Substances 0.000 claims abstract description 11
- 238000004422 calculation algorithm Methods 0.000 claims abstract description 4
- 230000000877 morphologic effect Effects 0.000 claims description 10
- 230000010354 integration Effects 0.000 claims description 9
- 238000012937 correction Methods 0.000 claims description 7
- 238000011160 research Methods 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
- 208000035126 Facies Diseases 0.000 claims description 2
- 230000008676 import Effects 0.000 claims description 2
- 238000004891 communication Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 11
- 230000008569 process Effects 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract 2
- 239000006227 byproduct Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003110 molding sand Substances 0.000 description 2
- 238000003325 tomography Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000013178 mathematical model Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
Landscapes
- Revetment (AREA)
Abstract
The invention relates to an embedded meandering stream sand body modeling method. The method mainly solves the problems of low working efficiency, poor grid model quality, inaccurate side-product interlayer configuration and incapability of establishing a multi-layer multi-point dam in the conventional modeling method in the background technology. The method is characterized in that: comprises the following steps: 1) data information; 2) an intra-layer modeling implementation process; through accurate calibration of the longitudinal configuration characteristics of the plane of the point dam body and the lateral accumulation interlayer, mathematical description models in the plane and the longitudinal direction are abstracted, and accurate modeling of a lateral accumulation interlayer surface space object is realized by a method of combining two-dimensional models; the integral embedding of the model is realized through a socket mesh tracking algorithm. The embedded meandering stream sand body modeling method improves the modeling efficiency and accuracy and ensures the overall quality of the grid model.
Description
Technical field
The present invention relates to a kind of Geological Modeling of oil-field development technical field, especially
oneplant embedded meandering river Sandbody modling method.
Background technology
From the inner remaining oil research technology result of meandering river molding sand body, in ultra-high water cut stage meandering river molding sand body, still there is a large amount of remaining oils, owing to being subject to abandoned channel, local variation, lateral accretion interbed blocks and develop the combined influence of system, remaining oil is present in oil reservoir inside with multi-form, different scales, and the difficulty of deeply taping the latent power continues to increase.In order further to improve Development Response of Oilfield, a large amount of deep research work aspect fine geology, have been carried out, aspect the research of meandering stream deposit sand body endo conformation, making significant progress, the fairly perfect identification of some dam body and endo conformation analytical technology have been formed, the important characterising parameters such as point bar body plane form, longitudinal configuration, distribution frequency and bottom connection situation have been obtained, for fine geology modeling in meandering river layer provides necessary material base.
Modeling digital-to-analogue use in conjunction technology had both comprised specific geologic agent, can reflect again the impact of the composite factors such as well pattern and exploitation system, it is the most effective technological means of Fuel Oil Remaining fractional analysis in ultra-high water cut stage layer, in meandering stream deposit Sandbody modling and digital-to-analogue application, carried out in recent years a large amount of exploration application, from the situation of investigation, also there is very large deficiency and limitation in existing modeling method.Aspect lateral accretion interbed modeling, mainly containing three kinds of methods: the one, hand drawing method, the method is according to the understanding of the configuration feature on longitudinal to point bar form, distribution range and lateral accretion interbed in survey region in fine geology research process, with interactive mode, on grid model, demarcate layer by layer one by one grid, inefficiency and the very difficult precision that guarantees description; The 2nd, tomography method of equal effects, the method is the form participation modeling with tomography key element by lateral accretion interbed, because lateral accretion interbed all has low inclination angle conventionally, can make model local structure that serious distortion occurs in modeling process, has a strong impact on mesh quality; The 3rd, along lateral accretion interbed modeling, the method is to set up grid model along lateral accretion interbed face, from modeling effect, can accurately represent the spatial shape feature that side is amassed body, but there is in actual applications obvious inadaptability: be that this method is not deferred to actual geology layering on the one hand, and cannot realize the classifying rationally of grid in multilayer situation, even on the other hand in same layer, if there are the some dam bodys of a plurality of different tendencies, along the method for lateral accretion interbed layering, also cannot realize the description of a dam body.
Summary of the invention
The invention reside in the problem of " inefficiency, grid model are of poor quality, lateral accretion interbed configuration out of true and cannot set up multilayer multiple spot dam " that overcome that the existing modeling method that exists in background technology exists, and provide
oneplant embedded meandering river Sandbody modling method.This embedded meandering river Sandbody modling method, by the demarcation of meandering river point bar body endo conformation, the longitudinal mathematical model description of plane, interlayer tracking socket and embedded integration method, realized fine geology modeling in meandering river sand body layer, when improving modeling efficiency and precision, guarantee the total quality of grid model, strengthened the adaptability of technology application.
The present invention solves its problem and can reach by following technical solution: this embedded meandering river Sandbody modling method, comprises following steps:
1), data information
(1) object block well location coordinate data data;
(2) fine sedimentary facies base map data of description, wants precise marking to go out distributed areas and the morphological feature of a dam body on base map;
(3) lateral accretion interbed configuration is described achievement;
(4) target area fine grid blocks and property distribution model;
(5) supporting lateral accretion interbed modeling and model integration software;
2), modeling implementation procedure in layer
(1) base map coordinates correction:
Using Detailed Geologic Research Results base map as demarcating source, and the well location coordinate information of usining in survey region is as reference point, realizes the Concordance of coordinate system by rotation, scaling and the coordinate transform of plane base map; Described well location coordinate information get three points or more than;
(2) point bar body plane form is demarcated:
Utilize line group scaling method to describe some dam body projection morphological feature, according to a complexity for dam body projection form, adopt one or more line groups to demarcate, in each line group, comprise two and describe line, represent respectively the form of lateral accretion interbed face start-stop projection line, the lateral accretion interbed projection line between line group can utilize interpolation method to obtain according to interlayer density parameter;
(3) lateral accretion interbed tendency is demarcated:
Application normal scaling method is realized the description of lateral accretion interbed tendency feature, according to a situation of change for dam body different parts interlayer tendency, at corresponding site, feature normal is set, and accurately describes the tendency feature of some dam body regional area;
(4) set up the longitudinal template of lateral accretion interbed:
According to putting dam body endo conformation feature in survey region, set up the longitudinal form template of lateral accretion interbed, the complexity that can change according to the local feature of lateral accretion interbed in region in application, carries out longitudinal morphological feature classification, and sets up on this basis many cover description templates;
(5) create lateral accretion interbed space curved surface:
On the basis of coordinates correction and parameter calibration, binding site dam body plane and longitudinally mathematics description model create lateral accretion interbed space curved surface;
(6) grid model loads:
Import existing target area grid and property distribution model;
(7) model integration and output:
In conjunction with grid property model and interlayer surface model, adopt socket mesh tracing method, utilize spatial object intersection algorithm to differentiate lateral accretion interbed curved surface and model meshes overlapping relation, if crossing, setting this grid is interlayer description unit, and set corresponding discriminant value for all crossing grids, the integration of implementation model, and generate lateral accretion interbed curved surface mark achievement or grid property correction result.
The present invention compares and can have following beneficial effect with above-mentioned background technology: this embedded meandering river Sandbody modling method, solved because lateral accretion interbed sample information point is few, and cannot utilize conventional interpolation method to set up the technical barrier of space curved surface; Can improve to a great extent precision and the efficiency of modeling in meandering river sand body layer; The Accurate Model that can adapt to multilayer, multiple spot dam body and different tendency lateral accretion interbed configuration characteristics; Utilize embed model integration method, can guarantee the quality of original mesh model, improve the convergence type of numerical simulation.
accompanying drawing explanation:
Accompanying drawing 1 is the property distribution model of grand celebration block in the embodiment of the present invention;
Accompanying drawing 2 is that in the embodiment of the present invention, grand celebration block base map is proofreaied and correct and lateral accretion interbed parameter arranges figure;
Accompanying drawing 3 is that in the embodiment of the present invention, longitudinal morphological parameters of grand celebration block arranges figure;
Accompanying drawing 4 is lateral accretion interbed space curved surface figure of grand celebration block in the embodiment of the present invention;
Accompanying drawing 5 is that in the embodiment of the present invention, grand celebration block is followed the trail of the model result figure after socket;
Accompanying drawing 6 is analog result figure of grand celebration block in the embodiment of the present invention.
embodiment:
Below in conjunction with specific embodiment, the invention will be further described:
Embedded meandering river Sandbody modling method, grand celebration block major reservoir is poly-drive after follow-up water drive block application, this block has adopted embedded meandering river Sandbody modling method, concrete steps are as follows:
1, in conjunction with the geologic feature of this block, set up property distribution model, this process can adopt existing modeling software to realize, and does not contain the lateral accretion interbed descriptor of meandering river sand body inside in model, the carrier (seeing accompanying drawing 1) that this model embeds as lateral accretion interbed;
2, obtain target area fine geology research base map, utilize at least 3 mouthfuls of well coordinates (A, B, C) in region to proofread and correct base map coordinate, make base map coordinate consistent with actual geology coordinate; Calibration point dam body outline line on base map, the difference scope of control lateral accretion interbed, the simultaneously morphological feature of definite lateral accretion interbed curved surface; Along lateral accretion interbed outline line, tendency normal is set, represents the tendency feature (seeing accompanying drawing 2) of lateral accretion interbed;
3, the longitudinal morphological parameters model of lateral accretion interbed (seeing accompanying drawing 3) is set, describes longitudinal form of single lateral accretion interbed; Arrange, adjust lateral accretion interbed spacing in point bar body region; Lateral accretion interbed bottom is set and degrades parameter;
4, according to some dam body contour feature, tendency, plane and longitudinal morphological parameters calculation level dam body inner side of above-mentioned setting, amass mezzanine space curved surface (seeing accompanying drawing 4);
5, utilize property distribution model in the first step and the lateral accretion interbed curved surface in the 4th step, adopt the crossing grid cell of the crossing tracing algorithm differentiation lateral accretion interbed face of grid and attribute model, and set to intersecting grid the grid eigenwert that represents lateral accretion interbed, realize the integration (seeing accompanying drawing 5) of lateral accretion interbed and attribute model, generate lateral accretion interbed curved surface mark achievement or grid property correction result.This model has comprised lateral accretion interbed model information, can form data-interface with numerical simulation software, realizes the modeling effort of lateral accretion interbed model, (seeing accompanying drawing 6).
This embedded meandering river Sandbody modling method grand celebration block major reservoir is poly-drive after follow-up water drive block application, can obtain 7,451 ten thousand yuan of economic benefits, there is good economic benefit.
At the national maturing field sand body of meandering stream deposit type that all distributing in a large number, and be all faced with the technical barrier of finding local remaining oil and deeply taping the latent power.This embedded meandering river Sandbody modling method, application meandering stream deposit Sandbody modling and digital-to-analogue application technology, being the effective technology means that ultra-high water cut stage is found local remaining oil enriched area, is also a kind of inevitable technology trends, has broad application prospects and popularization and application space.
Claims (4)
1. an embedded meandering river Sandbody modling method, is characterized in that: comprise following steps:
1) data information:
(1) object block well location coordinate data data;
(2) fine sedimentary facies base map data of description, wants precise marking to go out distributed areas and the morphological feature of a dam body on base map;
(3) lateral accretion interbed configuration is described achievement;
(4) target area fine grid blocks and property distribution model;
(5) supporting lateral accretion interbed modeling and model integration software;
2) modeling implementation procedure in layer:
(1) base map coordinates correction: using Detailed Geologic Research Results base map as demarcating source, and the well location coordinate information of usining in survey region is as reference point, realizes the Concordance of coordinate system by rotation, scaling and the coordinate transform of plane base map; Described well location coordinate information get three points or more than;
(2) point bar body plane form is demarcated: utilize line group scaling method to describe some dam body projection morphological feature, according to a complexity for dam body projection form, adopt one or more line groups to demarcate, in each line group, comprise two and describe line, represent respectively the form of lateral accretion interbed face start-stop projection line, the lateral accretion interbed projection line between line group can utilize interpolation method to obtain according to interlayer density parameter;
(3) lateral accretion interbed tendency is demarcated: application normal scaling method is realized the description of lateral accretion interbed tendency feature, according to a situation of change for dam body different parts interlayer tendency, at corresponding site, feature normal is set, accurately describes the tendency feature of some dam body regional area;
(4) set up the longitudinal template of lateral accretion interbed: according to putting dam body endo conformation feature in survey region, set up the longitudinal form template of lateral accretion interbed, the complexity that can change according to the local feature of lateral accretion interbed in region in application, carry out longitudinal morphological feature classification, and set up on this basis many cover description templates;
(5) create lateral accretion interbed space curved surface: on the basis of coordinates correction and parameter calibration, binding site dam body plane and longitudinally mathematics description model create lateral accretion interbed space curved surface;
(6) grid model loads: import existing target area grid and property distribution model;
(7) model integration and output: in conjunction with grid property model and interlayer surface model, adopt socket mesh tracing method, utilize spatial object intersection algorithm to differentiate lateral accretion interbed curved surface and model meshes overlapping relation, if crossing, setting this grid is interlayer description unit, and set corresponding discriminant value for all crossing grids, the integration of implementation model, and generate lateral accretion interbed curved surface mark achievement or grid property correction result.
2. embedded meandering river Sandbody modling method according to claim 1, it is characterized in that: described object block well location coordinate data data, can be the coordinate data of all wells in block, also can select not on same straight line and can control the part key well in whole region.
3. embedded meandering river Sandbody modling method according to claim 1, is characterized in that: described lateral accretion interbed configuration is described achievement and comprised longitudinal configuration pattern, inclination angle, tendency, distribution density and bottom communication information.
4. embedded meandering river Sandbody modling method according to claim 1, it is characterized in that: described target area fine grid blocks and property distribution model are to be realized by ripe fine geology modeling software the carrier that in application, this model embeds as lateral accretion interbed spatial model.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410101739.1A CN103942842A (en) | 2014-03-19 | 2014-03-19 | Embedded meandering stream sand body modeling method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410101739.1A CN103942842A (en) | 2014-03-19 | 2014-03-19 | Embedded meandering stream sand body modeling method |
Publications (1)
Publication Number | Publication Date |
---|---|
CN103942842A true CN103942842A (en) | 2014-07-23 |
Family
ID=51190492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201410101739.1A Pending CN103942842A (en) | 2014-03-19 | 2014-03-19 | Embedded meandering stream sand body modeling method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN103942842A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104453877A (en) * | 2014-11-05 | 2015-03-25 | 长江大学 | Underground deep-buried meander point dam sand body historical reconstruction method |
CN104533402A (en) * | 2014-11-25 | 2015-04-22 | 长江大学 | Multi-phase superimposed combined braided channel sand phase determining method |
CN104574513A (en) * | 2014-12-31 | 2015-04-29 | 长江大学 | Representation method for accurately depicting three-dimensional distribution of interlayers based on geometrical morphology |
CN108957549A (en) * | 2018-06-26 | 2018-12-07 | 中国石油天然气股份有限公司 | Braided river sediment heterogeneous compact sandstone gas reservoir geological modeling method |
CN109025981A (en) * | 2018-06-22 | 2018-12-18 | 中国石油天然气股份有限公司 | Method and system for comparing side accumulated sand bodies of meandering stream |
WO2019127879A1 (en) * | 2017-12-29 | 2019-07-04 | 中国石油大学(华东) | Method for quantitatively characterizing geometric parameter relationships of river channel sand bodies of different river types |
CN110019594A (en) * | 2017-09-27 | 2019-07-16 | 中国石油化工股份有限公司 | A kind of geologic datebase method for building up based on numerical simulation |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030233217A1 (en) * | 2002-06-14 | 2003-12-18 | Schlumberger Technology Corporation | Method and program storage device for generating grids representing the architecture of fluvial reservoirs |
CN103226847A (en) * | 2013-04-01 | 2013-07-31 | 中国石油天然气股份有限公司 | Method and device for generating three-dimensional data volume of point dam of meandering river |
-
2014
- 2014-03-19 CN CN201410101739.1A patent/CN103942842A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030233217A1 (en) * | 2002-06-14 | 2003-12-18 | Schlumberger Technology Corporation | Method and program storage device for generating grids representing the architecture of fluvial reservoirs |
CN103226847A (en) * | 2013-04-01 | 2013-07-31 | 中国石油天然气股份有限公司 | Method and device for generating three-dimensional data volume of point dam of meandering river |
Non-Patent Citations (2)
Title |
---|
兰丽凤等: "曲流河砂体三维构型地质建模及应用", 《西南石油大学学报(自然科学版)》 * |
范峥等: "曲流河点坝内部构型的嵌入式建模方法研究", 《中国石油大学学报( 自然科学版)》 * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104453877A (en) * | 2014-11-05 | 2015-03-25 | 长江大学 | Underground deep-buried meander point dam sand body historical reconstruction method |
CN104453877B (en) * | 2014-11-05 | 2018-05-15 | 长江大学 | A kind of buried point bar of meandering sand body history method for reconstructing in underground |
CN104533402A (en) * | 2014-11-25 | 2015-04-22 | 长江大学 | Multi-phase superimposed combined braided channel sand phase determining method |
CN104533402B (en) * | 2014-11-25 | 2017-11-14 | 长江大学 | A kind of more phases are stacked compound braided channel sand body and determine method by stages |
CN104574513A (en) * | 2014-12-31 | 2015-04-29 | 长江大学 | Representation method for accurately depicting three-dimensional distribution of interlayers based on geometrical morphology |
CN104574513B (en) * | 2014-12-31 | 2018-05-15 | 长江大学 | The accurate characterizing method for portraying interlayer distributed in three dimensions based on geometric shape |
CN110019594A (en) * | 2017-09-27 | 2019-07-16 | 中国石油化工股份有限公司 | A kind of geologic datebase method for building up based on numerical simulation |
CN110019594B (en) * | 2017-09-27 | 2023-04-04 | 中国石油化工股份有限公司 | Geological knowledge base building method based on numerical simulation |
WO2019127879A1 (en) * | 2017-12-29 | 2019-07-04 | 中国石油大学(华东) | Method for quantitatively characterizing geometric parameter relationships of river channel sand bodies of different river types |
CN109025981A (en) * | 2018-06-22 | 2018-12-18 | 中国石油天然气股份有限公司 | Method and system for comparing side accumulated sand bodies of meandering stream |
CN108957549A (en) * | 2018-06-26 | 2018-12-07 | 中国石油天然气股份有限公司 | Braided river sediment heterogeneous compact sandstone gas reservoir geological modeling method |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN103942842A (en) | Embedded meandering stream sand body modeling method | |
CN104616350B (en) | Fracture hole type carbonate reservoir three-dimensional physical model method for building up | |
CN103077558B (en) | The modeling method of fracture and vug carbonate reservoir large-scale solution cavity Reservoir Body distributed model | |
CN104574511B (en) | A kind of quick progressive three-dimensional geological modeling method | |
CN103077548B (en) | The modeling method of fracture and vug carbonate reservoir corrosion hole Reservoir Body distributed model | |
CN105184864A (en) | Site stratum three-dimensional geological structure model generation method for natural foundation replacement quantities calculation | |
CN103454686A (en) | Method and system for reservoir prediction based on small-scale sedimentary facies of stratigraphic slice | |
CN102609982B (en) | Topology discovery method of space geological data based on unstructured mode | |
CN103116192A (en) | Fissure-cave type carbonate-reservoir reservoir body modeling method | |
CN104809266B (en) | A kind of accurate Forecasting Methodology of working face ocurrence of coal seam situation based on SPL | |
CN104091005B (en) | A kind of Overhead Line Project measures indoor and field integration system | |
CN105373648A (en) | Modeling method for sand shale interbed type sedimentary body reservoir architecture | |
CN105298484A (en) | Remaining oil description method based on reservoir architecture | |
CN104635262A (en) | Automatic forward and reverse fault isoline generating method based on enhanced rectangular grid | |
CN112394404A (en) | Progressive reservoir fine characterization method | |
CN104574513A (en) | Representation method for accurately depicting three-dimensional distribution of interlayers based on geometrical morphology | |
CN109979011A (en) | Plains region three-dimensional geological model building method based on multi-source heterogeneous data | |
CN103941288A (en) | Three-dimensional target geologic body interpretation method based on horizontal navigation | |
CN114549774A (en) | Three-dimensional stratum modeling method based on drilling data | |
CN110019594B (en) | Geological knowledge base building method based on numerical simulation | |
CN106354893A (en) | Method for geologic modeling with horizontal well data during drilling | |
CN104570070B (en) | A kind of method and apparatus for setting up two-dimentional near surface geological model | |
CN105205311B (en) | A kind of complex number algorithm that stratigraphic section is drawn | |
CN110428497A (en) | Braided stream training image generation method | |
CN105741280A (en) | Fuzzy mathematic vector regional evaluation method and apparatus |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140723 |
|
RJ01 | Rejection of invention patent application after publication |