WO1999031530A1 - Methode de detection automatique des heterogeneites planaires recoupant la stratification d'un milieu - Google Patents
Methode de detection automatique des heterogeneites planaires recoupant la stratification d'un milieu Download PDFInfo
- Publication number
- WO1999031530A1 WO1999031530A1 PCT/FR1998/002705 FR9802705W WO9931530A1 WO 1999031530 A1 WO1999031530 A1 WO 1999031530A1 FR 9802705 W FR9802705 W FR 9802705W WO 9931530 A1 WO9931530 A1 WO 9931530A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- image
- stratification
- heterogeneities
- planes
- planar
- Prior art date
Links
- 238000013517 stratification Methods 0.000 title claims abstract description 80
- 238000000034 method Methods 0.000 title claims abstract description 48
- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 230000009466 transformation Effects 0.000 claims description 9
- 238000009499 grossing Methods 0.000 description 5
- 238000010606 normalization Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 206010011878 Deafness Diseases 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000010191 image analysis Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000002763 arrhythmic effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 210000003934 vacuole Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/38—Processing data, e.g. for analysis, for interpretation, for correction
Definitions
- the present invention relates to a method for the automatic detection of planar heterogeneities which crosscut the stratification of a medium from images of the wall of wells or of samples of cores taken from said medium.
- Tools designated under the FMI (Fullbore) references are designated under the FMI (Fullbore) references.
- Formation Micro Imager and FMS (Formation Micro Scanner), marketed by the company SCHLUMBERGER, make it possible to acquire electrical images from measurements of the local electrical conductivity of the wall of a well.
- An electrical image of the wall of a well is a developed view which presents on a plane, a horizontal x axis representing the azimuthal distribution of the electrodes of the pads of the tool used, and a vertical y axis along which the depth is defined. (dimension) of the tool in the well.
- the electrical image of the wall of a well or the image of a core sample is analyzed in terms of planar heterogeneities and point heterogeneities.
- the planar heterogeneities present on the image can be categorized by their conductivity with respect to the background of the image, their sharpness (gray level contrast), their organization ( isolated or grouped by family), their frequency (high or low frequency depending on the direction and depth) and their visibility (visible on the whole image or only on a part of the image).
- their conductivity with respect to the background of the image
- their sharpness gray level contrast
- their organization isolated or grouped by family
- their frequency high or low frequency depending on the direction and depth
- their visibility visible on the whole image or only on a part of the image.
- the first type is generally a secant geological event at the wellbore which has an extent much greater than the diameter of the well, like the stratification and fracturing plans, while the second type presents radial and vertical extension limited to the scale of the well and of the acquisition device, such as vacuoles, nodules or disturbances of the bioturbation type, etc.
- stratification or fracturing The categorization criteria recalled above often make it possible to recognize the geological significance of planar heterogeneity: stratification or fracturing. Stratification is generally considered to be the dominant planar heterogeneity in the image; it is the most visible event, indicates the dominant orientation of the image and it is organized into families (one family per level).
- Billing is a more occasional, isolated, secant event during stratification, often partially visible and several different families of fractures can be recognized on the same level.
- the method of Antoine et al. consists in detecting the stratification planes from contours, called flow lines, identified on the skate image, then, respecting certain criteria, in matching the current lines from skate to skate by a programming algorithm dynamic.
- the current lines are obtained from a tracing of the local orientations of the stratification throughout the image and from the selection of the current lines located at the inflection points. This method detects the smallest details of the current lines in the image.
- the method recommended by Torres et al. consists in using the HOUGH transform which makes it possible to determine, from an image, the specific parameters characterizing a geometric shape such as a straight line, a circle, an ellipse or a sinusoid, then to project points of said shape into the parameter space, called the HOUGH space.
- the point of intersection of these projections in HOUGH space represents the parameters of the sought shape.
- a drawback of this method is that the depth of the sinusoid is not integrated into the parameter space, which leads to inaccuracy in the depth and therefore to a limitation.
- the amplitude of the sinusoid because of the window size used by Torres et al.
- another drawback is that it requires significant computation time and memory, increasing very rapidly as a function of the dimension of the HOUGH space, that is to say, of the number of parameters sought.
- the method recommended by Hall et al. also uses the HOUGH transform, but by characterizing the HOUGH space in three dimensions which are the dip, the azimuth and the depth of the plane.
- the HOUGH transform is applied after a detection of the contours which is carried out either from the binarized image, or after a classification of the neighboring pixels. It should be noted that the binarization of an image of multiple levels of gray by thresholding implies a great loss of information and that it would therefore be difficult to detect and distinguish the contours of different contrasts in the sliding window used.
- the last methods described succinctly above seek to detect all the types of plans by a single algorithm without hierarchization. However, the planes to be detected have very different characteristics, such as contrast, frequency, etc. As a result, these methods cannot be effectively implemented to detect fracturing heterogeneities in a reliable and reliable manner.
- the object of the present invention is to remedy the drawbacks of the methods of the prior art and to propose a method which, taking into account the different characteristics of the heterogeneities of stratification and fracturing, makes it possible to eliminate the stratification of the image for better visualize the planes intersecting at the stratification in order to facilitate their detection.
- the subject of the present invention is a method for the automatic detection of planar heterogeneities which cuts across the stratification of a medium from well wall images or images of cores from said medium, in which an original image defined in a system is used.
- axes X ,, Y ,, Zj
- said image containing, for an area of the medium traversed by the well, planar heterogeneities constituted by stratification planes and by secant planar heterogeneities to the stratification planes, characterized in that it consists of: - determining a dominant orientation of the stratification planes located in at least part of said original image,
- the method consists in calculating the apparent dips of said stratification planes and in subjecting said stratification planes to a rotation bringing their dip to zero so that said stratification planes are perpendicular to the axis (Z) of the well, so as to obtain a resulting image in which the planar stratification heterogeneities are horizontal,
- the apparent dip of each stratification plane is calculated from the true dip of said plane stratification and the deviation of the well determined at the intersection of the axis of the well with said stratification plane.
- the filtering of the resulting image is carried out in the frequency domain.
- the filtering of the resulting image uses a method by transformation of
- the determination of the contour segments is carried out on a gradient image of the filtered image.
- the determination of the contour segments is carried out by a method of following a ridge line by the tree course in depth first.
- the filtered image is transformed into a standardized image having the same contrast over the entire surface.
- the gradient image is obtained from the normalized image. According to another characteristic of the present invention, the gradient image is smoothed in at least one of two perpendicular directions.
- the detection of the contours is carried out on the smoothed gradient image in the two perpendicular directions.
- it further consists in selecting segments of one of the contour chains which satisfy a quality index.
- it further consists in subjecting the image obtained at the end of the steps subsequent to filtering the resulting image, a rotation to bring said image to its primitive position.
- An advantage of the present invention resides in the fact that by differentiating the planar heterogeneities of stratification from the planar heterogeneities of fracturing, it becomes possible to eliminate the planar heterogeneities of stratification in order to retain only the planar fractures heterogeneities which can therefore be detected very easily.
- Another advantage of the present invention is that it is possible to differentiate the fractures of different polarities.
- FIG. 1 is a schematic representation of an original image of the wall of a well
- FIG. 2 is a schematic representation of an image obtained from the original image and comprising the horizontal stratification planes
- FIG. 3 is a schematic representation of a resulting image after filtering the image of Figure 2;
- FIG. 4 is a schematic representation of the final image comprising contour segments of the detected fractures.
- FIG. 1 An original image I (x, y) of the wall of a borehole or a photograph of a core sample is shown diagrammatically in FIG. 1.
- planes corresponding to geological layers located at various depths in the medium in which the well was drilled or from which a core was taken.
- the geological layers, at the time of sedimentary deposits, were flat and parallel and each located in a horizontal plane. Following the tectonic movements of the earth, the same geological layers were more or less transformed, giving rise to more or less sloping layers in a certain direction.
- the layers of clay which have settled in a calm environment are substantially horizontal.
- stratification planes which constitute the planar heterogeneities of stratification which can be grouped in families located at different depths, and on the other hand, secant planar heterogeneities to the stratification plans.
- the sinusoids corresponding to the stratification planes are parallel and grouped into families. For example, a family 1, located in the upper part of the figure, groups the sinusoids referenced 2 to 5. Another family 6, located substantially in the middle of the figure, groups sinusoids corresponding to other stratification planes and referenced 7 to 9. Other sinusoids corresponding to other stratification planes such as 10, 11, 12, 13, 14 are also shown in the lower part of FIG. 1.
- the sinusoids or parts of sinusoids corresponding to heterogeneities of fracturing are also shown in Figure 1 and they intersect the sinusoids corresponding to the stratification planes. Some of the secant sinusoids to the so-called stratification sinusoids are referenced 15 to 23.
- the dominant orientation of the stratification planes detected in the well and appearing on the image I (x, y) is determined and the apparent dips of said stratification planes are calculated, in a system of axes (X ,, Yj, Z ⁇ ) in which the well is located, the inclined direction of the well being the axis
- said stratification planes are subjected to a rotation bringing their dip to zero, so that said stratification planes are perpendicular to the axis Zj of the well, so as to obtain a resulting image in which the heterogeneities planar stratification are horizontal.
- This rotation results in the resulting image (FIG. 2) by a transformation of the so-called stratification sinusoids into substantially horizontal lines. This is how the sinusoids 2 to 5 of the original image are identified on the resulting image of FIG. 2 by the lines 2 'to 5', while the sinusoids 7 to 14 are identified by the lines 7 'to 14'.
- the horizontalization of the stratification planes can be carried out for example by one or the other of the two following techniques: a) detecting the dominant orientation of the image, then from there, deducing the sinusoids of the stratification planes (visible stratification planes) and then transform the sinusoids into straight lines on the image.
- true plane into apparent plane is carried out by a rotation transforming the system of geodesic axes compared to which the true dip is calculated in the system of axes H] (X Y- ,, Z- .) in which Z] is the axis of the well, X, is the axis perpendicular to the east and to the axis Zj, and Yj is perpendicular to the two axes Xi and Zj.
- This transformation can advantageously be carried out by passing through an intermediate axis system H 2 (X 2 , Y 2 , Z 2 ) in which Z 2 is coincident with Z t , X 2 is the direction of azimuth of the well, perpendicular to Z 2 , and Y 2 is an axis perpendicular to X 2 and Z 2 as described in the thesis by SHIN-JU YE of 16.01.97 entitled "Well wall imaging analysis: automatic detection of sedimentary and tectonic heterogeneities ".
- the resulting image of FIG. 2 is filtered in the frequency domain, for example by operating on the frequency spectrum of this image obtained by Fourier transform of the latter, so as to eliminate from said resulting image the planar heterogeneities of dominant orientation stratification which are possibly horizontal.
- the Fourier transform allows to pass from a representation of the image in the domain? spatial I (x, y) to a representation in the frequency domain I (u, v) in which we observe the amplitudes and orientations of the components of different frequencies of the image I (x, y). Then, we eliminate certain frequencies distributed according to a particular orientation of the image, by setting for example to zero (case of the horizontal stratification planes) the frequencies which we want to eliminate.
- FFT fast Fourier transform
- FFT 1 inverse Fourier transform
- FIG. 3 schematically represents the filtered image.
- a reverse rotation is carried out to the previous one to find the original or primitive geometry of the remaining planes. It should be noted that this reverse rotation can be carried out at any time after the filtering of the resulting image, that is to say after one of the following operations.
- contour segments of the secant and remaining planar heterogeneities are determined on said filtered image.
- This determination of the contour or of the contour segments is preferably carried out by carrying out the following sequence of operations: 1. Dynamic normalization of the histogram of the filtered image
- a dynamic normalization of the histogram of the filtered image is carried out in order to homogenize the visibility of fractures in all types of lithologies and have an image with the same contrast over the entire surface of the image.
- a sliding window is used.
- we perform a linear transformation of the histogram y f (x) where the extent of the new histogram [a, b], identical for each depth, corresponds to the minimum values c, and maximum d, of a certain percentage (96% for example) of the histogram d 'origin.
- a normalized filtered image is obtained which is not represented.
- the normalization of an image is well known to specialists and will therefore not be described in more detail.
- the gradient image can be calculated directly on the filtered image, it is preferable to calculate it on the normalized filtered image.
- the first and second derivatives of an image are very important features; for example, the maxima and minima of the first derivative and the zero crossings of the second derivative can be used for the detection of the contours of the image.
- Gaussian filters and exponential filters are smoothing filters widely used in image processing. The smoothing and the calculation of the derivatives of the image can be carried out simultaneously by the convolution of the image, for example the normalized image, with the derivatives of the smoothing filter.
- exponential filter is considered an optimal filter for this effect.
- exponential filters and their derivatives can be performed by very simple and fast recursive algorithms (by a cascade of two exponential filters on one side (left and right), each being performed by a first-order recursive algorithm) .
- Each exponential filter is an impulse response of the following form:
- the first derivative of the image is filtered according to the depth of the well.
- This one-dimensional application also makes it possible to eliminate the vertical artifacts from the well wall image due to a malfunction of certain sensors.
- the gradient image in the direction perpendicular to the depth of the well.
- This can be done by medium, arrhythmic or median filters.
- the median filter consists of classifying the neighboring pixels and the current pixel by increasing (or decreasing) values, then assigning the median value of the classified pixels to the current pixel. Another smooth image is thus obtained in the direction perpendicular to the axis Z 15 of the well. 4. Detection of planar heterogeneity contours
- contour segments of planar heterogeneities visible on the gradient image are presented as roof-shaped contours, that is to say that the points of the contours are situated at the maximums or minima local signals. Since the purpose of detecting planar heterogeneity contours is to reconstruct the planes crossing the well, we cannot be satisfied with extracting only contour points, but rather extracting contours from which each point is ordered on the same plane. This requires well-developed contour tracking algorithms.
- the process of tracking ridge lines through the tree path in depth first is designed exclusively for finding the contours of planes. It is able to detect the contours of small or very large slopes (except vertical), linear, zigzags, or even dotted lines (that is to say, formed by isolated but aligned points).
- - visibility for a plane to be detectable, it must be visible on the image so that it has a high amplitude, - continuity of visibility, linearity and length: compared to the point heterogeneity, the signature of planar heterogeneity must be visible continuously, linear and sufficiently long.
- V visibility
- C visibility continuity
- L linearity
- a mp is the average amplitude of the segment
- N pv is the number of visible points, a point is visible if its amplitude is greater than a threshold, S amp , V am p is the variance of the amplitude of points of the segment, ⁇ is the thickness of the segment, calculated at from the maximum distance between the line connecting the two end points of the segment and the points of the segment, D (P 0 , Pj) is the distance between the two end points of the segment P 0 and P l 5 N is the number of points in the segment.
- a chain has a low Q quality, it is cut in two by the point furthest from the line joining the ends of the chain; the two parts are considered separately, and so on. This makes it possible to detect certain segments seen partially on the image.
- the solid line segments such as the 16 ′, 19 ′, 20 ′ or 23 ′ segments and the dotted segments such as the segments 15 ′, 17 ′ mean that we are in the presence of different polarities, corresponding to minima or local maxima.
- the dotted segments correspond to local minima while the solid segments correspond to local maxima.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP98959967A EP0960345B1 (fr) | 1997-12-15 | 1998-12-11 | Methode de detection automatique des heterogeneites planaires recoupant la stratification d'un milieu |
AU15679/99A AU751035B2 (en) | 1997-12-15 | 1998-12-11 | Method for automatic detection of planar heterogeneities crossing the stratification of an environment |
CA002279400A CA2279400C (fr) | 1997-12-15 | 1998-12-11 | Methode de detection automatique des heterogeneites planaires recoupant la stratification d'un milieu |
US09/367,161 US6266618B1 (en) | 1997-12-15 | 1998-12-11 | Method for automatic detection of planar heterogeneities crossing the stratification of an environment |
DE69823170T DE69823170D1 (de) | 1997-12-15 | 1998-12-11 | Verfahren zur automatischen erkennung von die schichtung eines mediums schneidenden, flachen heterogenitäten |
NO19993707A NO328937B1 (no) | 1997-12-15 | 1999-07-29 | Fremgangsmate for automatisk deteksjon av planare uensartetheter som krysser et miljos stratifikasjon |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9715859A FR2772486B1 (fr) | 1997-12-15 | 1997-12-15 | Methode de detection automatique des heterogeneites planaires recoupant la stratification d'un milieu |
FR97/15859 | 1997-12-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1999031530A1 true WO1999031530A1 (fr) | 1999-06-24 |
Family
ID=9514603
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR1998/002705 WO1999031530A1 (fr) | 1997-12-15 | 1998-12-11 | Methode de detection automatique des heterogeneites planaires recoupant la stratification d'un milieu |
Country Status (10)
Country | Link |
---|---|
US (1) | US6266618B1 (fr) |
EP (1) | EP0960345B1 (fr) |
CN (1) | CN1247603A (fr) |
AU (1) | AU751035B2 (fr) |
CA (1) | CA2279400C (fr) |
DE (1) | DE69823170D1 (fr) |
FR (1) | FR2772486B1 (fr) |
NO (1) | NO328937B1 (fr) |
OA (1) | OA11145A (fr) |
WO (1) | WO1999031530A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9366135B2 (en) | 2013-10-08 | 2016-06-14 | Exxonmobil Upstream Research Company | Automatic dip picking from wellbore azimuthal image logs |
Families Citing this family (42)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050149450A1 (en) * | 1994-11-23 | 2005-07-07 | Contentguard Holdings, Inc. | System, method, and device for controlling distribution and use of digital works based on a usage rights grammar |
JPH08263438A (ja) * | 1994-11-23 | 1996-10-11 | Xerox Corp | ディジタルワークの配給及び使用制御システム並びにディジタルワークへのアクセス制御方法 |
US6963859B2 (en) * | 1994-11-23 | 2005-11-08 | Contentguard Holdings, Inc. | Content rendering repository |
US6233684B1 (en) * | 1997-02-28 | 2001-05-15 | Contenaguard Holdings, Inc. | System for controlling the distribution and use of rendered digital works through watermaking |
CA2323882C (fr) * | 1998-03-16 | 2004-05-25 | Schlumberger Canada Limited | Procede et appareil utilisant un suivi multicible pour analyser des images de trous de sonde et produire des ensembles de reperes de suivi et de donnees d'inclinaison |
JP4323663B2 (ja) * | 2000-02-29 | 2009-09-02 | キヤノン株式会社 | 画像フィルタ回路及び画像フィルタリング方法 |
MY123577A (en) * | 2000-05-02 | 2006-05-31 | Shell Int Research | Borehole imaging |
NZ505784A (en) * | 2000-07-17 | 2003-04-29 | Compudigm Int Ltd | A data visualisation system producing a contoured graphical representation of call centre activity |
US8225414B2 (en) * | 2000-08-28 | 2012-07-17 | Contentguard Holdings, Inc. | Method and apparatus for identifying installed software and regulating access to content |
US6931545B1 (en) * | 2000-08-28 | 2005-08-16 | Contentguard Holdings, Inc. | Systems and methods for integrity certification and verification of content consumption environments |
US7343324B2 (en) | 2000-11-03 | 2008-03-11 | Contentguard Holdings Inc. | Method, system, and computer readable medium for automatically publishing content |
US6912294B2 (en) * | 2000-12-29 | 2005-06-28 | Contentguard Holdings, Inc. | Multi-stage watermarking process and system |
US6754642B2 (en) | 2001-05-31 | 2004-06-22 | Contentguard Holdings, Inc. | Method and apparatus for dynamically assigning usage rights to digital works |
US20030220880A1 (en) * | 2002-01-17 | 2003-11-27 | Contentguard Holdings, Inc. | Networked services licensing system and method |
US7028009B2 (en) * | 2001-01-17 | 2006-04-11 | Contentguardiholdings, Inc. | Method and apparatus for distributing enforceable property rights |
US20030043852A1 (en) * | 2001-05-18 | 2003-03-06 | Bijan Tadayon | Method and apparatus for verifying data integrity based on data compression parameters |
US8275709B2 (en) | 2001-05-31 | 2012-09-25 | Contentguard Holdings, Inc. | Digital rights management of content when content is a future live event |
US6895503B2 (en) * | 2001-05-31 | 2005-05-17 | Contentguard Holdings, Inc. | Method and apparatus for hierarchical assignment of rights to documents and documents having such rights |
US7725401B2 (en) | 2001-05-31 | 2010-05-25 | Contentguard Holdings, Inc. | Method and apparatus for establishing usage rights for digital content to be created in the future |
US6973445B2 (en) * | 2001-05-31 | 2005-12-06 | Contentguard Holdings, Inc. | Demarcated digital content and method for creating and processing demarcated digital works |
US7222104B2 (en) * | 2001-05-31 | 2007-05-22 | Contentguard Holdings, Inc. | Method and apparatus for transferring usage rights and digital work having transferrable usage rights |
US8275716B2 (en) | 2001-05-31 | 2012-09-25 | Contentguard Holdings, Inc. | Method and system for subscription digital rights management |
US7152046B2 (en) * | 2001-05-31 | 2006-12-19 | Contentguard Holdings, Inc. | Method and apparatus for tracking status of resource in a system for managing use of the resources |
US6876984B2 (en) * | 2001-05-31 | 2005-04-05 | Contentguard Holdings, Inc. | Method and apparatus for establishing usage rights for digital content to be created in the future |
US7774280B2 (en) * | 2001-06-07 | 2010-08-10 | Contentguard Holdings, Inc. | System and method for managing transfer of rights using shared state variables |
EP1653411B1 (fr) * | 2004-10-26 | 2008-07-23 | Total S.A. | Procédé et programme de reconstruction de plan de fracture |
US7438078B2 (en) * | 2005-08-05 | 2008-10-21 | Peter Woodruff | Sleeping bag and system |
JP2009027525A (ja) * | 2007-07-20 | 2009-02-05 | Nec Corp | 光伝送システムおよび光伝送方法 |
EP2031423B1 (fr) * | 2007-08-31 | 2013-05-15 | Services Pétroliers Schlumberger | Identification de propriétés géologiques dans une image d'une formation souterraine entourant un trou de forage |
FR2928959B1 (fr) * | 2008-03-21 | 2010-03-12 | Inst Francais Du Petrole | Procede d'estimation de la densite de fractures dans un milieu rocheux |
US20100027974A1 (en) * | 2008-07-31 | 2010-02-04 | Level 3 Communications, Inc. | Self Configuring Media Player Control |
US10302811B2 (en) * | 2008-08-21 | 2019-05-28 | Weatherford Technology Holdings, Llc | Data reduction of images measured in a borehole |
WO2011031329A2 (fr) * | 2009-09-14 | 2011-03-17 | Fronterra Integrated Geosciences, LLC | Procédé pour interpréter des plans naturels de fracture et de défaut d'immersion identifiés à partir d'images du trou de forage |
US8886503B2 (en) | 2011-04-19 | 2014-11-11 | Schlumberger Technology Corporation | Discontinuity detection |
JP5854802B2 (ja) * | 2011-12-01 | 2016-02-09 | キヤノン株式会社 | 画像処理装置、画像処理方法、及びコンピュータプログラム |
EP2700983A1 (fr) * | 2012-02-14 | 2014-02-26 | Services Pétroliers Schlumberger | Systèmes et procédés pour calculer la surface d'une fracture en fonction du volume de roche |
US9542507B2 (en) | 2012-02-23 | 2017-01-10 | Schlumberger Technology Corporation | Feature detection in seismic volumes |
US9196058B2 (en) * | 2013-11-26 | 2015-11-24 | Saudi Arabian Oil Company | Automated workflow for 3D core digital modeling from computerized tomography scanner (CTS) images |
CN107144572A (zh) * | 2017-05-26 | 2017-09-08 | 太原科技大学 | 灰度图像中裂缝自动识别和检测方法 |
US10947841B2 (en) | 2018-01-30 | 2021-03-16 | Baker Hughes, A Ge Company, Llc | Method to compute density of fractures from image logs |
CN109389128B (zh) * | 2018-08-24 | 2021-08-27 | 中国石油天然气股份有限公司 | 电成像测井图像特征自动提取方法及装置 |
EP3871019A1 (fr) | 2018-10-25 | 2021-09-01 | Chevron U.S.A. Inc. | Système et procédé d'analyse quantitative d'images de puits de forage |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4414656A (en) * | 1980-04-15 | 1983-11-08 | Schlumberger Technology Corporation | Well logging system for mapping structural and sedimentary dips of underground earth formations |
US4791618A (en) * | 1981-08-24 | 1988-12-13 | Schlumberger Technology Corporation | Well logging method and system for detecting structural and stratigraphic geological make-up of subsurface formations |
US5038378A (en) * | 1985-04-26 | 1991-08-06 | Schlumberger Technology Corporation | Method and apparatus for smoothing measurements and detecting boundaries of features |
US5162994A (en) * | 1990-06-19 | 1992-11-10 | Halliburton Logging Services, Inc. | Method for determining dip and strike angles in borehole ultrasonic scanning tool data |
US5299128A (en) * | 1990-10-05 | 1994-03-29 | Schlumberger Technology Corporation | Method and apparatus for delineating bed boundaries in subsurface formations and for producing indications of the angle of dip thereof |
US5661698A (en) * | 1994-10-18 | 1997-08-26 | Institut Francais Du Petrole | Method for modelling the spatial distribution of geometric objects in an environment, such as faults in a geologic formation |
-
1997
- 1997-12-15 FR FR9715859A patent/FR2772486B1/fr not_active Expired - Fee Related
-
1998
- 1998-12-11 AU AU15679/99A patent/AU751035B2/en not_active Ceased
- 1998-12-11 CA CA002279400A patent/CA2279400C/fr not_active Expired - Fee Related
- 1998-12-11 EP EP98959967A patent/EP0960345B1/fr not_active Expired - Lifetime
- 1998-12-11 DE DE69823170T patent/DE69823170D1/de not_active Expired - Lifetime
- 1998-12-11 CN CN98802561.2A patent/CN1247603A/zh active Pending
- 1998-12-11 WO PCT/FR1998/002705 patent/WO1999031530A1/fr active IP Right Grant
- 1998-12-11 US US09/367,161 patent/US6266618B1/en not_active Expired - Lifetime
-
1999
- 1999-07-29 NO NO19993707A patent/NO328937B1/no not_active IP Right Cessation
- 1999-08-13 OA OA9900178A patent/OA11145A/en unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4414656A (en) * | 1980-04-15 | 1983-11-08 | Schlumberger Technology Corporation | Well logging system for mapping structural and sedimentary dips of underground earth formations |
US4791618A (en) * | 1981-08-24 | 1988-12-13 | Schlumberger Technology Corporation | Well logging method and system for detecting structural and stratigraphic geological make-up of subsurface formations |
US5038378A (en) * | 1985-04-26 | 1991-08-06 | Schlumberger Technology Corporation | Method and apparatus for smoothing measurements and detecting boundaries of features |
US5162994A (en) * | 1990-06-19 | 1992-11-10 | Halliburton Logging Services, Inc. | Method for determining dip and strike angles in borehole ultrasonic scanning tool data |
US5299128A (en) * | 1990-10-05 | 1994-03-29 | Schlumberger Technology Corporation | Method and apparatus for delineating bed boundaries in subsurface formations and for producing indications of the angle of dip thereof |
US5661698A (en) * | 1994-10-18 | 1997-08-26 | Institut Francais Du Petrole | Method for modelling the spatial distribution of geometric objects in an environment, such as faults in a geologic formation |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9366135B2 (en) | 2013-10-08 | 2016-06-14 | Exxonmobil Upstream Research Company | Automatic dip picking from wellbore azimuthal image logs |
Also Published As
Publication number | Publication date |
---|---|
CA2279400A1 (fr) | 1999-06-24 |
FR2772486A1 (fr) | 1999-06-18 |
FR2772486B1 (fr) | 2000-01-07 |
NO328937B1 (no) | 2010-06-21 |
EP0960345B1 (fr) | 2004-04-14 |
EP0960345A1 (fr) | 1999-12-01 |
NO993707D0 (no) | 1999-07-29 |
US6266618B1 (en) | 2001-07-24 |
OA11145A (en) | 2003-04-17 |
DE69823170D1 (de) | 2004-05-19 |
AU1567999A (en) | 1999-07-05 |
CN1247603A (zh) | 2000-03-15 |
CA2279400C (fr) | 2008-02-12 |
AU751035B2 (en) | 2002-08-08 |
NO993707L (no) | 1999-10-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0960345B1 (fr) | Methode de detection automatique des heterogeneites planaires recoupant la stratification d'un milieu | |
EP0842443B1 (fr) | Methode de determination automatique des bancs de stratification dans un milieu | |
Zhao et al. | A fault detection workflow using deep learning and image processing | |
Qi et al. | Image processing of seismic attributes for automatic fault extraction | |
Lacharité et al. | Multisource multibeam backscatter data: Developing a strategy for the production of benthic habitat maps using semi-automated seafloor classification methods | |
US11378710B2 (en) | Fault detection based on seismic data interpretation | |
FR2909185A1 (fr) | Methode d'interpretation stratigraphique d'images sismiques | |
EP0903592B1 (fr) | Méthode statistique de classement d'événements liés aux propriétés physiques d'un milieu complexe tel que le sous-sol | |
EP1707993A1 (fr) | Procédé et programme de recherche de discontinuites | |
FR2646520A1 (fr) | Procede de pointe automatique et d'aide a l'interpretation, en particulier de section sismique, par des techniques d'analyse d'images | |
EP3570074A1 (fr) | Procédé pour la détection d'objets géologiques dans une image | |
Di et al. | Seismic attribute-aided fault detection in petroleum industry: A review | |
Mahadik et al. | Fault detection and optimization in seismic dataset using multiscale fusion of a geometric attribute | |
CA2456596C (fr) | Methode pour mesurer les similarites locales entre plusieurs cubes de traces sismiques | |
Laggoune et al. | Tree ring analysis | |
Koyan et al. | 3D ground-penetrating radar attributes to generate classified facies models: A case study from a dune island | |
Teran et al. | High-Resolution Facies Prediction by Means of Integrating Dip Quality Index and Texture Analysis from Resistivity Borehole Images Logs in a Pre-Salt Complex Carbonate Reservoir Located in a Brazilian Field | |
Wedge et al. | Fast and objective detection and analysis of structures in downhole images | |
FR2869693A1 (fr) | Procede et programme de propagation d'un marqueur sismique dans un ensemble de traces sismiques | |
FR2764700A1 (fr) | Methode de caracterisation de la coherence de mesures de caracteristiques d'un milieu | |
Ricciuti et al. | Unsupervised recognition of textural facies in borehole images: a novel and efficient two-stage segmentation method | |
EP1540377B1 (fr) | Methode pour compacter et filtrer des evenements geophysiques dans le but d en extraire des informations sur la nature du sou s-sol | |
Tian et al. | A local binary patterns/variance operator based on guided filtering for seismic fault detection | |
You et al. | Enhancing Automatic Facies Classification of Brazilian Pre-salt Acoustic Image Logs with SwinV2-Unet: Leveraging Transfer Learning and Confident Learning | |
GALKIN et al. | A pre-attentive vision model for data prospecting |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 98802561.2 Country of ref document: CN |
|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU CA CN NO RU US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE BF BJ CF CG CI CM GA GN GW ML MR NE SN TD TG |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1998959967 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 2279400 Country of ref document: CA Ref document number: 2279400 Country of ref document: CA Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15679/99 Country of ref document: AU |
|
WWE | Wipo information: entry into national phase |
Ref document number: 09367161 Country of ref document: US |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWP | Wipo information: published in national office |
Ref document number: 1998959967 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 15679/99 Country of ref document: AU |
|
WWG | Wipo information: grant in national office |
Ref document number: 1998959967 Country of ref document: EP |