WO2014199027A1 - Procede et dispositif de determination de cubes de proportions - Google Patents
Procede et dispositif de determination de cubes de proportions Download PDFInfo
- Publication number
- WO2014199027A1 WO2014199027A1 PCT/FR2014/050898 FR2014050898W WO2014199027A1 WO 2014199027 A1 WO2014199027 A1 WO 2014199027A1 FR 2014050898 W FR2014050898 W FR 2014050898W WO 2014199027 A1 WO2014199027 A1 WO 2014199027A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- proportion
- facies
- auxiliary
- cube
- average
- 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.)
- Ceased
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V20/00—Geomodelling in general
-
- 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. for interpretation or for event detection
- G01V1/32—Transforming one recording into another or one representation into another
- G01V1/325—Transforming one representation into another
-
- 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
- G01V2210/66—Subsurface modeling
- G01V2210/665—Subsurface modeling using geostatistical modeling
Definitions
- the present invention relates to the field of determining geological facies in a subsoil and in the context of research and exploitation of hydrocarbons or gases.
- geological facies in a given field is useful in the context of research and exploitation of hydrocarbons or gases because it makes it possible to estimate at best the available resources and, consequently, the value economic field.
- this determination allows for fine models of future field production based on well parameters.
- geologists eg facies gradient in one direction of space
- a quantitative model is a model, for example a mesh, whose meshes provide a proportion of facies for each of these meshes.
- a qualitative model is a model, for example a mesh, whose meshes provide a trend for each facies: for example, these meshes make it possible to represent the large architectural elements (ie to visualize the general voluminal or spatial aspects).
- Facies models modeling n facies often consist of n proportion cubes, each cube being associated with a facies.
- the sum of the proportions of the different facies is equal to 1.
- the present invention improves the situation.
- the present invention proposes to control finely the final proportions of the combination.
- the present invention thus aims at a method for determining at least one combined proportion cube for a facies of a geological model comprising a plurality of facies.
- the method comprises the steps:
- auxiliary proportion cube modifying said auxiliary proportion cube, said modified auxiliary proportion cube having a second average proportion, the second average proportion being at a distance less than a predetermined distance from the first average proportion;
- the modification of the auxiliary proportion cube can be done in many ways. For example, at first, it is possible to increase or decrease the proportions of each cell of the auxiliary proportion cube by a value ⁇ (if the difference between the average proportion of the auxiliary proportion cube and the proportion cube reference, for a given facies, is ⁇ ). It is also possible to add or reduce to these proportions a value ⁇ as many times as necessary in order to reduce the average proportion of the auxiliary proportion cube to a distance less than ⁇ from the average proportion of the reference proportion cube.
- auxiliary cubes are strictly greater than 1 (respectively strictly less than 1), it is possible to multiply the proportions of the meshes of these modified auxiliary cubes by a given number less than 1 (respectively greater than 1) as many times as necessary so that this sum is less than 1 (respectively greater than 1). It is also possible to multiply these proportions by the average ratio of the auxiliary and reference cubes.
- the sum of the coefficients of said linear combination may be equal to 1.
- the reference proportion cube may comprise a first plurality of meshes, each of said meshes j being associated with an initial value of reference local proportion r- °,
- the auxiliary proportion cube may comprise a second plurality of meshes, each of said meshes j being associated with an initial value of auxiliary local proportion a.
- the modification may comprise, for each mesh j: a / initialization of a current value of auxiliary local proportion a ⁇ to a "; b / determining a first current auxiliary local ratio value a ⁇ redim based on at least:
- the modification can be performed in parallel for the at least two facies.
- a "local proportion” is a proportion value of a facies in a cell of a proportion cube.
- a "current value of the auxiliary proportion cube” is a proportion value of a modified auxiliary proportion cube. If the auxiliary proportion cube has not been changed yet, the current value is the initial local proportion of the auxiliary proportion cube.
- the determination of the first current value may have the objective of aligning the average proportions of the auxiliary proportion cube and the reference proportion cube.
- the determination of the second current value may have the objective of satisfying the property that the corresponding meshes of the auxiliary cubes for each of the facies are at 1 (i.e. the proportions of the different facies for a given location of the model are at 1).
- the calculation of the second value can include, implicitly, the calculation of the first value.
- the reference proportion cube may comprise a first plurality of meshes, each of said meshes j being associated with an initial value of reference local proportion r °,
- the auxiliary proportion cube may comprise a second plurality of meshes, each of said meshes j being associated with an initial value of auxiliary local proportion a ",
- the modification may comprise, for each cell j: a / initialization of a current value of auxiliary local proportion a ⁇ to a "; b / determination from a first current value of auxiliary local proportion a k j redim based, at least: the average of the initial values of reference local proportion r ° for the cells of the reference proportion cube of the facies i,
- the modification can be performed in parallel for the at least two facies.
- the method can converge very quickly and the operator performing the method described can empirically, as and when experience and input data, determine that a limited number of iterations can achieve a satisfactory result .
- the reference proportion cube may comprise a first plurality of meshes, each of said meshes j being associated with an initial value of reference local proportion r °.
- the auxiliary proportion cube may also include a second plurality of meshes, each of said meshes j being associated with an initial value of auxiliary local proportion a ".
- the modification may include, for each mesh j:
- auxiliary a j norm can be a function of _ '.
- the first current value of auxiliary local proportion ; j norm may be a function of _.
- a k j norm can be a function of ' J k red ' m - with w a
- a ⁇ Lredim means that the proportions a k j norm auxiliary cubes w
- a device for determining at least one combined ratio cube can be advantageous in itself since it allows the average proportions after combination to be controlled.
- the present invention also provides a device for determining at least one combined proportion cube for a facies of a geological model comprising a plurality of facies.
- the device comprises: - an interface (403) for receiving a reference proportion cube, said reference proportion cube having a first average proportion;
- circuit (404) adapted to allow, for at least one facies of the plurality of facies:
- auxiliary proportion cube modifying said auxiliary proportion cube, said modified auxiliary proportion cube having a second average proportion, the second average proportion being at a distance less than a predetermined distance from the first average proportion;
- a computer program implementing all or part of the method described above, installed on a pre-existing equipment, is in itself advantageous, since it allows to determine at least one cube of proportion combined under constraint of the average proportions after combination.
- the present invention also relates to a computer program comprising instructions for implementing the method described above, when this program is executed by a processor.
- This program can use any programming language (for example, an object language or other), and be in the form of an interpretable source code, a partially compiled code or a fully compiled code.
- Figure 2 described in detail below can form the flow chart of the general algorithm of such a computer program.
- FIG. 1 illustrates a geological model and cubes of proportions for the operation of a possible method according to the invention
- FIG. 2 illustrates an operating diagram of a method in an embodiment according to the invention
- FIG. 3a illustrates an example of two reference proportion cubes and an example of two auxiliary proportion cubes received for the operation of a possible method according to the invention
- FIG. 3b illustrates an example of two modified auxiliary proportion cubes following an iteration of a possible normalization according to one embodiment of the invention
- FIG. 3c illustrates an example of two auxiliary proportion cubes modified following two iterations of a possible normalization according to one embodiment of the invention
- FIG. 4 illustrates a computing device for implementation according to one embodiment of the invention.
- FIG. 1 illustrates a MOD geological model and cubes of proportions CUB_PROP for the operation of a possible method according to the invention.
- a geological model 100 is not necessarily parallelepipedal. This model 100 is most often meshed (MAIL) to represent a given volume of a subsoil (real or estimated).
- MAIL meshed
- This model 100 can be decomposed into proportion cubes (101 and 102). These "cubes" are not necessarily cubic or even parallelepipedic. There are as many proportion cubes as facies represented in the model. Thus, in the situation of FIG. 1, there are two facies represented in the model 100:
- the proportion cubes represent the estimated proportion (or estimated probability of presence) of the facies considered in this cube. For example, if these cubes are meshed, a mesh 103 of the first cube may be associated with a proportion value P1.
- the mesh 104 of the cube 102 (and corresponding to the same volume of the model as the mesh 103, i.e. positioned at the same place in the model) can be associated with a value of proportion P2. If the model has only two facies, then P1 + P2 is equal to 1.
- Figure 2 illustrates an operating diagram of a method in an embodiment according to the invention.
- the mode of operation described in this figure is only one of the possible modes of operation of the invention.
- an auxiliary model 201 and a reference model 202 are received (step 203).
- These models 201 and 202 each comprise N proportion cubes as previously described.
- this reception of models comprising proportion cubes for each of the N facies of the models is equivalent to the direct reception, for each of N facies, of a pair of cubes of proportions (each pair comprising a reference proportion cube , and an auxiliary proportion cube).
- the set of meshes j can also correspond to a subset of the meshes of the reference (or auxiliary) proportion cube.
- a first step it is useful to calculate a cube of a k . r ° "
- this step can modify the values of the proportions of the meshes and the property according to which the sum for all the facies of the corresponding meshes is equal to 1 can no longer be respected.
- step 21 1 the meshes of the proportion cube a k
- test 212, output KO the distance between the average of proportions of the reference proportion cube and the average over j of the values of the sequence (a ⁇ ) k is greater than a predetermined distance
- the two steps 210 and 21 1 are re-run by calculating the value of the sequence at rank k + 1.
- test 212, output OK it is possible to consider that the modifications made on the auxiliary proportion cube Ai are sufficient (by replacing the proportional values of the auxiliary cubes a "by the last calculated values of the sequence
- other end conditions for the test 212 are possible, for example exceeding a number of predetermined iterations (eg three iterations) or a combination of previously mentioned conditions (ex. a minimum number of iterations and a minimum distance).
- a combination of the "modified" auxiliary ratio cube Ai and the reference proportion cube R1 can be performed (step 213).
- This combination i.e. the cube of proportion Ci 214) can be performed mesh by mesh.
- the value of ⁇ can be equal to (1 - cc).
- the values of and (or simply a, if there is a relationship between these two values) can be determined according to the confidence given by geologists or sink engineers in the data of the different cubes to be combined.
- a combined ratio cube Ci i.e. 215 or 216
- the values of the combination coefficients and p may be identical or different depending on the facies.
- FIG. 3a illustrates an example of two reference proportion cubes and an example of two auxiliary proportion cubes: FAC1 -REF 301 is a reference proportion cube for the facies 1;
- FAC1 -AUX 303 is an auxiliary proportion cube for facies 1;
- FAC2-REF 302 is a reference proportion cube for the facies 2;
- FAC2-AUX 304 is an auxiliary proportion cube for facies 2.
- the corresponding meshes of the different facies eg the two meshes at the top right of cubes FAC1 -REF and FAC2-REF
- the corresponding meshes of the different facies eg the two meshes at the top right of the cubes FAC1 -AUX and FAC2-AUX
- the average proportions of the different cubes for each facies FAC1 and FAC2 are not identical for the auxiliary proportion cube and the reference proportion cube.
- FIG. 3b illustrates an example of a modified auxiliary proportion cube following a possible modification according to one embodiment of the invention.
- FAC1 -AUX1 to 305 is the auxiliary proportion cube 303 modified after the execution of step 210 as described with reference to FIG. 2;
- FAC1 -AUX1 b 306 is the auxiliary proportion cube 303 modified after the execution of steps 210 and 21 1 as described with reference to FIG. 2;
- FAC2-AUX1 to 307 is the auxiliary proportion cube 304 modified after the execution of step 210 as described with reference to FIG. 2;
- FAC2-AUX1 b 308 is the auxiliary proportion cube 304 modified after the execution of steps 210 and 21 1 as described with reference to FIG. 2;
- the corresponding meshes of the different facies eg the two meshes at the top right of cubes FAC1 -AUX1 b and FAC2-AUX1 b
- FIG. 3c illustrates an example of a modified auxiliary proportion cube following two iterations of a possible normalization according to one embodiment of the invention.
- FAC1 -AUX2a 309 is the auxiliary proportion cube 306 modified after execution of step 210 as described with reference to FIG. 2;
- FAC1 -AUX1 b 310 is the auxiliary proportion cube 306 modified after the execution of steps 210 and 21 1 as described with reference to FIG. 2;
- FAC2-AUX2a 31 1 is the auxiliary proportion cube 308 modified after the execution of step 210 as described with reference to FIG. 2;
- FAC2-AUX2b 312 is the auxiliary proportion cube 308 modified after the execution of steps 210 and 211 as described with reference to FIG. 2;
- the sum of these average proportions is 1.
- the corresponding meshes of the different facies eg the two meshes at the top right of cubes FAC1 -AUX2a and FAC2-AUX2a
- the corresponding meshes of the different facies eg the two meshes at the top right of cubes FAC1 -AUX2b and FAC2-AUX2b
- FIG. 4 represents an exemplary device for determining at least one combined proportion cube in one embodiment of the invention.
- the device comprises a computer 400, comprising a memory 404 for storing instructions for implementing the method, the received data as the auxiliary and reference proportion cubes, and temporary data for carrying out the different steps of the method as described above.
- the computer further comprises a circuit for determining at least one combined proportion cube 401. This circuit can be, for example:
- processor capable of interpreting instructions in the form of a computer program
- a programmable electronic chip such as an FPGA (for "Field Programmable Gate Array”).
- This computer has an input interface 402 for receiving data such as the cubes or models mentioned above, and an output interface 403 for providing modified cubic data. Finally, the computer comprises, to allow easy interaction with a user, a screen 405, a mouse and a keyboard 406.
- the output interface 406 can be confused with a video output allowing a display on the screen 401.
- FIG. 2 is a typical example of a program whose instructions can be carried out with the equipment described. As such, FIG. 2 may correspond to the flowchart of the general algorithm of a computer program within the meaning of the invention.
Landscapes
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geophysics (AREA)
- General Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Error Detection And Correction (AREA)
- Investigating Or Analysing Biological Materials (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1521703.7A GB2529786B (en) | 2013-06-11 | 2014-04-11 | Method and device for determining proportion cubes |
| US14/897,145 US10379258B2 (en) | 2013-06-11 | 2014-04-11 | Method and device for determining proportion cubes |
| NO20160040A NO346918B1 (en) | 2013-06-11 | 2014-04-11 | Method and device for determining proportion cubes for facies of geological models |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1355400 | 2013-06-11 | ||
| FR1355400A FR3006773B1 (fr) | 2013-06-11 | 2013-06-11 | Procede et dispositif de determination de cubes de proportions. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014199027A1 true WO2014199027A1 (fr) | 2014-12-18 |
Family
ID=49578382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2014/050898 Ceased WO2014199027A1 (fr) | 2013-06-11 | 2014-04-11 | Procede et dispositif de determination de cubes de proportions |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US10379258B2 (fr) |
| FR (1) | FR3006773B1 (fr) |
| GB (1) | GB2529786B (fr) |
| NO (1) | NO346918B1 (fr) |
| WO (1) | WO2014199027A1 (fr) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12158556B2 (en) * | 2020-10-30 | 2024-12-03 | Landmark Graphics Corporation | Systems and methods to analyze a formation |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2270548A1 (fr) * | 2009-06-26 | 2011-01-05 | IFP Energies nouvelles | Méthode pour modifier des proportions de faciès lors du calage d'historique d'un modèle géologique |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2909775A1 (fr) * | 2006-12-11 | 2008-06-13 | Inst Francais Du Petrole | Methode de construction d'un modele geologique d'une formation du sous-sol contraint par des donnees sismiques |
| CA2721008A1 (fr) * | 2008-04-11 | 2009-10-15 | Terraspark Geosciences, Llc | Visualisation de caracteristiques geologiques a l'aide de representations de donnees leur appartenant |
| US8600708B1 (en) * | 2009-06-01 | 2013-12-03 | Paradigm Sciences Ltd. | Systems and processes for building multiple equiprobable coherent geometrical models of the subsurface |
| US8743115B1 (en) * | 2009-10-23 | 2014-06-03 | Paradigm Sciences Ltd. | Systems and methods for coordinated editing of seismic data in dual model |
| US8838425B2 (en) * | 2010-03-18 | 2014-09-16 | Schlumberger Technology Corporation | Generating facies probablity cubes |
| US20150009215A1 (en) * | 2012-02-17 | 2015-01-08 | Schlumberger Technology Corporation | Generating a 3d image for geological modeling |
| US9121971B2 (en) * | 2012-08-01 | 2015-09-01 | Chevron U.S.A. Inc. | Hybrid method of combining multipoint statistic and object-based methods for creating reservoir property models |
| US8666149B2 (en) * | 2012-08-01 | 2014-03-04 | Chevron U.S.A. Inc. | Method for editing a multi-point facies simulation |
-
2013
- 2013-06-11 FR FR1355400A patent/FR3006773B1/fr active Active
-
2014
- 2014-04-11 US US14/897,145 patent/US10379258B2/en active Active
- 2014-04-11 NO NO20160040A patent/NO346918B1/en unknown
- 2014-04-11 GB GB1521703.7A patent/GB2529786B/en active Active
- 2014-04-11 WO PCT/FR2014/050898 patent/WO2014199027A1/fr not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2270548A1 (fr) * | 2009-06-26 | 2011-01-05 | IFP Energies nouvelles | Méthode pour modifier des proportions de faciès lors du calage d'historique d'un modèle géologique |
Non-Patent Citations (2)
| Title |
|---|
| HOFFMAN ET AL: "History matching by jointly perturbing local facies proportions and their spatial distribution: Application to a North Sea reservoir", JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, ELSEVIER, AMSTERDAM, NL, vol. 57, no. 3-4, 1 June 2007 (2007-06-01), pages 257 - 272, XP022101621, ISSN: 0920-4105, DOI: 10.1016/J.PETROL.2006.10.011 * |
| J. CAERS, T. HOFFMAN, S. STREBELLE, X-H. WEN: "Probabilistic integration of geologic scenarios, seismic, and production data - a West Africa turbidite reservoir case study", THE LEADING EDGE, SOCIETY OF EXPLORATION GEOPHYSICISTS, US, March 2006 (2006-03-01), pages 240 - 244, XP002719924 * |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3006773B1 (fr) | 2020-09-11 |
| GB201521703D0 (en) | 2016-01-20 |
| NO20160040A1 (en) | 2016-01-08 |
| FR3006773A1 (fr) | 2014-12-12 |
| US20160124114A1 (en) | 2016-05-05 |
| GB2529786B (en) | 2020-05-27 |
| GB2529786A (en) | 2016-03-02 |
| US10379258B2 (en) | 2019-08-13 |
| NO346918B1 (en) | 2023-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2356493B1 (fr) | Procede de modelisation geologique de donnees sismiques par correlation de traces | |
| FR3069330A1 (fr) | Modelisation de gisement basee sur l'apprentissage profond | |
| FR2994451A1 (fr) | Procede hybride de non-appariement local pour la simulation d'ecoulements multiphasiques dans les milieux fractures heterogenes | |
| AU2017342840A1 (en) | Connectivity based approach for field development optimization | |
| WO2012045936A2 (fr) | Simulation de karstification | |
| FR2985571A1 (fr) | ESTIMATION CONJOINTE SIMULTANEE DE STATIQUES RESIDUELLES P-P et P-S | |
| WO2011030013A2 (fr) | Procédé de modélisation déterministe des écoulements en milieu poreux | |
| EP3274863A1 (fr) | Procede et dispositif pour detecter des radioelements | |
| FR3081079A1 (fr) | Méthodologie optimisée pour la mise en correspondance automatique de l'historique d'un modèle de réservoir de pétrole avec un filtre de kalman d'ensemble | |
| FR3038408A1 (fr) | ||
| WO2010061135A1 (fr) | Estimation de proprietes lithologiques d'une zone geologique. | |
| FR3036820A1 (fr) | Modelisation de la saturation et permeabilite de reservoir de champ petrolifere | |
| WO2015067864A1 (fr) | Procede et dispositif de traitement de signaux sismiques | |
| FR3048300A1 (fr) | Representation hybride geocellulaire en 3d de sous-ensembles de reseau de fracture naturelle choisis | |
| FR3034894A1 (fr) | ||
| FR3040809A1 (fr) | ||
| FR3152893A1 (fr) | Modèle, procédé, et procédé d’entraînement de modèle pour un traitement à haute résolution de données sismiques | |
| FR3032222A1 (fr) | Architecture de parametre d'incertitude a priori integree en creation de modele de simulation | |
| FR2976088A1 (fr) | Procede de tomographie non lineaire pour un axe de symetrie principal d'un modele de vitesse anisotrope et dispositif | |
| WO2014199027A1 (fr) | Procede et dispositif de determination de cubes de proportions | |
| EP3224653B1 (fr) | Méthode et dispositif de traitement de données de puits | |
| FR2994314A1 (fr) | Procede de restauration de donnees de puits de forage | |
| EP3224656B1 (fr) | Procede de determination d'un cube de proportion | |
| FR3048801A1 (fr) | ||
| FR2994313A1 (fr) | Procede d'assistance a la modelisation geologique par regroupements de mailles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14725215 Country of ref document: EP Kind code of ref document: A1 |
|
| ENP | Entry into the national phase |
Ref document number: 1521703 Country of ref document: GB Kind code of ref document: A Free format text: PCT FILING DATE = 20140411 |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 14897145 Country of ref document: US |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 14725215 Country of ref document: EP Kind code of ref document: A1 |

