Specifications

The Patent Office Journal 17/12/2010
4611
(12) PATENT APPLICATION PUBLICATION (21) Application No.2060/CAL/1998 A
(19) INDIA
(22) Date of filing of Application :23/11/1998 (43) Publication Date : 17/12/2010
(54) Title of the invention : SYSTEM FOR COMBINING THREE COMPONENT SEISMIC DATA
(51) International classification
:G01V
001/28
(31) Priority Document No :09/162,053
(32) Priority Date :28/09/1998
(33) Name of priority country :U.S.A.
(86) International Application No
Filing Date
:NA
:NA
(87) International Publication No : NA
(61) Patent of Addition to Application Number
Filing Date
:NA
:NA
(62) Divisional to Application Number
Filing Date
:NA
:NA
(71)Name of Applicant :
1)PGS TENSOR, INC.
Address of Applicant :10550, RICHMOND, SUITE 300,
HOUSTON, TEXAS U.S.A.
(72)Name of Inventor :
1)MAURICE GIDLOW
(57) Abstract :
A system for processing seismic signals wherein seismic data resulting from a reflected seismic wave is received at a multi-component
receiver. A mask trace is generated as a function of the seismic data received at the multi-component receiver, and a single type of
seismic signals from the seismic data received at the multi-component receiver is identified and extracted utilizing the mask trace.
Generating the mask trace further includes multiplying the seismic data received at two of the components of the multi-component
receiver to produce a first result. A positive/negative sign of the first result is identified to produce a first binary result. The first binary
result is divided by a scaling factor to produce the mask trace. Extracting the single type of seismic signals further includes
multiplying the seismic data received at one component of the multi- component receiver with the mask trace wherein the single type
of seismic signals represents seismic waves received at the one component of the multi-component receiver. In another embodiment o
f
the present invention, generating the mask trace further includes multiplying the seismic data received at two different components of
the multi- component receiver to produce a second result. A positive/negative sign of the second result is identified to produce a
second binary result. The second binary result is multiplied with the first binary result and then divided by a scaling factor to produce
the mask trace.
No. of Pages : 62 No. of Claims : 74