公开(公告)号：EP0698220B1

公开(公告)日：1998-05-27

申请号：EP95912296.1

申请日：1995-03-10

申请人： ELF AQUITAINE PRODUCTION ,  ELF ENTERPRISE CALEDONIA LTD. ,  ELF EXPLORATION UK

发明人： RAYNAUD, Bernard ,  ROBEIN, Etienne

IPC分类号： G01V1/28

CPC分类号： G01V1/282

摘要： A method for modelling kinematic seismic data processed with at least one motion operator, wherein the mid-point (N1) of a transmitter (S)/receiver (R) system is determined, a ray tracing for the system is established relative to a given reflector, the ray parameters are processed using a motion operator to provide a first arrival point (N'1) located on the model, the position deviation ( DELTA E) between the reference points (N) and the point (N'1) is determined and compared with a predetermined deviation ( DELTA e), and an iteration is performed on each new arrival point (N'i) until the deviation ( DELTA E) is the same as or smaller than the predetermined deviation ( DELTA e). The method is particularly useful in tomography.

公开(公告)号：EP0698220A1

公开(公告)日：1996-02-28

申请号：EP95912296.0

申请日：1995-03-10

申请人： ELF AQUITAINE PRODUCTION ,  ELF ENTERPRISE CALEDONIA LTD. ,  ELF EXPLORATION UK

发明人： RAYNAUD, Bernard ,  ROBEIN, Etienne

IPC分类号： G01V1

CPC分类号： G01V1/282

摘要： A method for modelling kinematic seismic data processed with at least one motion operator, wherein the mid-point (N1) of a transmitter (S)/receiver (R) system is determined, a ray tracing for the system is established relative to a given reflector, the ray parameters are processed using a motion operator to provide a first arrival point (N'1) located on the model, the position deviation (ΔE) between the reference points (N) and the point (N'1) is determined and compared with a predetermined deviation (Δe), and an iteration is performed on each new arrival point (N'i) until the deviation (ΔE) is the same as or smaller than the predetermined deviation (Δe). The method is particularly useful in tomography.

公开(公告)号：EP0789849B1

公开(公告)日：2002-12-11

申请号：EP96928491.8

申请日：1996-08-07

申请人： ELF AQUITAINE PRODUCTION

发明人： ROBEIN, Etienne ,  KACULINI, Stefan

IPC分类号： G01V1/30

CPC分类号： G01V1/303 ,  E21B47/02 ,  E21B47/022 ,  G01V1/48

摘要： A method for representing the path of one or more boreholes in a spatial and temporal domain, characterised in that it includes the steps of: (a) developing a velocity-depth model (4) keyed with said borehole (1), geologically representative of said zone and including a representation of said borehole path (5); (b) selecting one or more points (A) on or adjacent to said path, said point (A) being defined by its spatial co-ordinates and by at least a pair of dip/azimuth data; and (c) at least modelling in a synthetic sum domain (9) the image (a) of the selected point (A), wherein said image (a) is defined by the spatial and temporal co-ordinates and by a dip/time vector, and is obtained by projecting a zero offset ray in the velocity/depth model (4).

公开(公告)号：EP0789849A1

公开(公告)日：1997-08-20

申请号：EP96928491.0

申请日：1996-08-07

申请人： ELF AQUITAINE PRODUCTION

发明人： ROBEIN, Etienne ,  KACULINI, Stefan

IPC分类号： E21B47 ,  G01V1

CPC分类号： G01V1/303 ,  E21B47/02 ,  E21B47/022 ,  G01V1/48

摘要： A method for representing the path of one or more boreholes in a spatial and temporal domain, characterised in that it includes the steps of: (a) developing a velocity-depth model (4) keyed with said borehole (1), geologically representative of said zone and including a representation of said borehole path (5); (b) selecting one or more points (A) on or adjacent to said path, said point (A) being defined by its spatial co-ordinates and by at least a pair of dip/azimuth data; and (c) at least modelling in a synthetic sum domain (9) the image (a) of the selected point (A), wherein said image (a) is defined by the spatial and temporal co-ordinates and by a dip/time vector, and is obtained by projecting a zero offset ray in the velocity/depth model (4).