METHODE DE DETECTION AUTOMATIQUE DES HETEROGENEITES PLANAIRES RECOUPANT LA STRATIFICATION D'UN MILIEU
    1.
    发明公开
    METHODE DE DETECTION AUTOMATIQUE DES HETEROGENEITES PLANAIRES RECOUPANT LA STRATIFICATION D'UN MILIEU 有权
    方法用于自动识别积聚的介质切割,FLAT非均质性

    公开(公告)号:EP0960345A1

    公开(公告)日:1999-12-01

    申请号:EP98959967.0

    申请日:1998-12-11

    IPC分类号: G01V3

    CPC分类号: G01V3/38

    摘要: The invention concerns a method for automatic detection of planar heterogeneities intersecting the stratification of an environment from images of a borehole wall or developed core samples of said environment, which consists in using an original image defined in a system of axes (X1, Y1, Z1) associated with the borehole whose axis is Z1, said image containing, for a zone, traversed by the bore hole planar heterogeneities consisting of stratification planes (2 to 14) and planar heterogeneities (15 to 23) intersecting the stratification planes. The invention is characterised in that it consists in: determining a dominant orientation of the stratification planes located in at least on part of said original image; filtering the original image to eliminate the planar heterogeneities of the stratification planes (2 to 14) located in the dominant direction; determining on said filtered image at least two contour segments (15' to 23') of the heterogeneities intersecting the stratification planar heterogeneities.

    METHODE DE CARACTERISATION DE LA COHERENCE DE MESURES DE CARACTERISTIQUES D'UN MILIEU
    2.
    发明授权
    METHODE DE CARACTERISATION DE LA COHERENCE DE MESURES DE CARACTERISTIQUES D'UN MILIEU 失效
    表征的介质的特性的测量的一致性的方法

    公开(公告)号:EP0922239B1

    公开(公告)日:2004-02-25

    申请号:EP98930825.9

    申请日:1998-06-11

    IPC分类号: G01V11/00

    CPC分类号: G01V11/00

    摘要: The invention concerns a method for characterising the coherence of an environment characteristic measurements, consisting in: taking N types of reference measurements in each observation (Xi) of a reference set; constituting at least a training set with N dimensions containing all said observations (Xi); taking at least N application measurements in each observation (Qi) of an application set; comparing each application observation (x) with all the observations (Xi). The invention is characterised in that it further consists in: constructing for each observation (Xi) a neighbouring domain (Di), said neighbouring domains constituting said training set and an acceptation class (Ca), and defining a degree of appurtenance of the application observations (x) to said acceptation class (Ca). The invention is particularly applicable to the identification of a lithologic facies in an oil field.

    METHODE DE CARACTERISATION DE LA COHERENCE DE MESURES DE CARACTERISTIQUES D'UN MILIEU
    4.
    发明公开
    METHODE DE CARACTERISATION DE LA COHERENCE DE MESURES DE CARACTERISTIQUES D'UN MILIEU 失效
    出于表征的相干性的方法在测量值的介质KENNZEICHEND

    公开(公告)号:EP0922239A1

    公开(公告)日:1999-06-16

    申请号:EP98930825.0

    申请日:1998-06-11

    IPC分类号: G01V11

    CPC分类号: G01V11/00

    摘要: The invention concerns a method for characterising the coherence of an environment characteristic measurements, consisting in: taking N types of reference measurements in each observation (Xi) of a reference set; constituting at least a training set with N dimensions containing all said observations (Xi); taking at least N application measurements in each observation (Qi) of an application set; comparing each application observation (x) with all the observations (Xi). The invention is characterised in that it further consists in: constructing for each observation (Xi) a neighbouring domain (Di), said neighbouring domains constituting said training set and an acceptation class (Ca), and defining a degree of appurtenance of the application observations (x) to said acceptation class (Ca). The invention is particularly applicable to the identification of a lithologic facies in an oil field.

    METHODE DE DETERMINATION AUTOMATIQUE DES BANCS DE STRATIFICATION DANS UN MILIEU
    5.
    发明公开
    METHODE DE DETERMINATION AUTOMATIQUE DES BANCS DE STRATIFICATION DANS UN MILIEU 失效
    一种用于自动确定所述层序列中的介质

    公开(公告)号:EP0842443A1

    公开(公告)日:1998-05-20

    申请号:EP97925136.0

    申请日:1997-05-27

    IPC分类号: G01V3

    CPC分类号: G01V3/38

    摘要: Each of the N surface images, used to restore the borehole or the core sample surface image, is segmented into related components (C (12), C (11),...) which are grouped into related regions (C (8)), each touching both the right and left edges of the image. After smoothing out their contours, the related regions are represented in the form of an image, called bed image, representative of the stratification beds. The contours appearing on the N bed images are matched to construct the bed boundary sinusoïdal curves. The invention is particularly useful in determining stratification of a geological site.

    METHODE DE DETERMINATION AUTOMATIQUE DES BANCS DE STRATIFICATION DANS UN MILIEU
    7.
    发明授权
    METHODE DE DETERMINATION AUTOMATIQUE DES BANCS DE STRATIFICATION DANS UN MILIEU 失效
    一种用于自动确定所述层序列中的介质

    公开(公告)号:EP0842443B1

    公开(公告)日:2001-09-26

    申请号:EP97925136.0

    申请日:1997-05-27

    IPC分类号: G01V3/38

    CPC分类号: G01V3/38

    摘要: Each of the N surface images, used to restore the borehole or the core sample surface image, is segmented into related components (C (12), C (11),...) which are grouped into related regions (C (8)), each touching both the right and left edges of the image. After smoothing out their contours, the related regions are represented in the form of an image, called bed image, representative of the stratification beds. The contours appearing on the N bed images are matched to construct the bed boundary sinusoïdal curves. The invention is particularly useful in determining stratification of a geological site.

    METHODE DE DETECTION DE RUPTURES DANS DES SIGNAUX DIAGRAPHIQUES CONCERNANT UNE ZONE D'UN MILIEU
    8.
    发明公开
    METHODE DE DETECTION DE RUPTURES DANS DES SIGNAUX DIAGRAPHIQUES CONCERNANT UNE ZONE D'UN MILIEU 有权
    方法用于检测孔测量信号间断从一个地区的培养基,

    公开(公告)号:EP1046066A1

    公开(公告)日:2000-10-25

    申请号:EP99947565.0

    申请日:1999-10-13

    IPC分类号: G01V3/38 G01V11/00

    CPC分类号: G01V3/38 G01V11/002

    摘要: The invention concerns a method for detecting fractures in logging signals made up of logs of different types (1 to 6) which consists in: selecting a portion of each of said logs (1 to 6) such that all the selected portions have one single common depth interval, one of the selected portions being taken as reference portion (log 1); selecting a parent wavelet function and constructing, from said parent function, a family of wavelet analysing functions according to spatial frequency and depth. For each selected log portion and for each depth, the absolute mean gradient value of the characteristic coefficient of the wavelet transform for the various spatial frequencies is calculated. The peaks of the mean gradient absolute value of the characteristic coefficient are then identified as fractures.