公开(公告)号：US20210103068A1

公开(公告)日：2021-04-08

申请号：US16596205

申请日：2019-10-08

Applicant: Saudi Arabian Oil Company

Inventor： Husain Salman Nasser ,  Manuel Jose Vega Lara

IPC: G01V1/42 ,  G01V1/50 ,  G01V1/30

Abstract: Disclosed are methods, systems, and computer-readable medium to perform operations including: receiving seismic data acquired by at least one receiver of a geologic survey system configured to perform a geologic survey of a subterranean formation, wherein the seismic data is associated with reflected acoustic signals generated by at least one source of the geologic survey system; calculating a ground force signal by stacking the acoustic signals generated by the least one source; calculating, using the ground force signal, a time and depth variant quality factor (Q) of the subterranean formation; and compensating, based on the time and depth variant Q, attenuation in the seismic data.

公开(公告)号：US11573346B2

公开(公告)日：2023-02-07

申请号：US17231806

申请日：2021-04-15

Applicant: Saudi Arabian Oil Company

Inventor： Husain Salman Nasser ,  Jianjiang Chen

IPC: G01V1/40 ,  E21B49/00 ,  G01V1/18

Abstract: A seismic attenuation quality factor Q is determined for seismic signals at intervals of subsurface formations between a seismic source at a marine level surface and one or more receivers of a well. Hydrophone and geophone data are obtained. A reference trace is generated from the hydrophone and geophone data. Vertical seismic profile (VSP) traces are received. First break picking of the VSP traces is performed. VSP data representing particle motion measured by a receiver of the well are generated. The reference trace is injected into the VSP data. A ratio of spectral amplitudes of a direct arrival event of the VSP data and the reference trace is determined. From the ratio, a quality factor Q is generated representing a time and depth compensated attenuation value of seismic signals between the seismic source at the marine level surface and the first receiver.

公开(公告)号：US20210286097A1

公开(公告)日：2021-09-16

申请号：US16818575

申请日：2020-03-13

Applicant: Saudi Arabian Oil Company

Inventor： Husain Salman Nasser ,  Ali Ahmed Shaikh Sulaiman

IPC: G01V1/28 ,  G01V1/30

Abstract: Systems and methods develop a three-dimensional model of a subterranean formation based on vertical seismic profiles at a plurality of well locations. This approach can include receiving seismic data for the subterranean formation including the vertical seismic profiles; for each vertical seismic profile, injecting a ground force into the vertical seismic profile to provide a reference trace at depth zero to estimate energy loss in each receiver providing data in the vertical seismic profile and estimating time and depth variant quality factors for the well location associated with the vertical seismic profile based on the seismic profile; estimating quality factors for points within a three-dimensional volume representing the subterranean formation by interpolating between the time and depth variant quality factors for the location associated with each vertical seismic profile; and combining estimated quality factors to generate a three-dimensional quality factor model of the three-dimensional volume representing the subterranean formation.

公开(公告)号：US11681064B2

公开(公告)日：2023-06-20

申请号：US16596205

申请日：2019-10-08

Applicant: Saudi Arabian Oil Company

Inventor： Husain Salman Nasser ,  Manuel Jose Vega Lara

IPC: G01V1/42 ,  G01V1/30 ,  G01V1/50

CPC classification number: G01V1/42 ,  G01V1/303 ,  G01V1/50 ,  G01V2210/161 ,  G01V2210/614 ,  G01V2210/6226 ,  G01V2210/63

Abstract: Disclosed are methods, systems, and computer-readable medium to perform operations including: receiving seismic data acquired by at least one receiver of a geologic survey system configured to perform a geologic survey of a subterranean formation, wherein the seismic data is associated with reflected acoustic signals generated by at least one source of the geologic survey system; calculating a ground force signal by stacking the acoustic signals generated by the least one source; calculating, using the ground force signal, a time and depth variant quality factor (Q) of the subterranean formation; and compensating, based on the time and depth variant Q, attenuation in the seismic data.

公开(公告)号：US20220334283A1

公开(公告)日：2022-10-20

申请号：US17231806

申请日：2021-04-15

Applicant: Saudi Arabian Oil Company

Inventor： Husain Salman Nasser ,  Jianjiang Chen

IPC: G01V1/40 ,  G01V1/18 ,  E21B49/00

Abstract: A seismic attenuation quality factor Q is determined for seismic signals at intervals of subsurface formations between a seismic source at a marine level surface and one or more receivers of a well. Hydrophone and geophone data are obtained. A reference trace is generated from the hydrophone and geophone data. Vertical seismic profile (VSP) traces are received. First break picking of the VSP traces is performed. VSP data representing particle motion measured by a receiver of the well are generated. The reference trace is injected into the VSP data. A ratio of spectral amplitudes of a direct arrival event of the VSP data and the reference trace is determined. From the ratio, a quality factor Q is generated representing a time and depth compensated attenuation value of seismic signals between the seismic source at the marine level surface and the first receiver.