The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 15, 2022

Filed:

Apr. 26, 2021
Applicant:

Saudi Arabian Oil Company, Dhahran, SA;

Inventors:

Yi Luo, Dhahran, SA;

Mohammed Mubarak, Dhahran, SA;

Tong Wang Fei, Dhahran, SA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/30 (2006.01); E21B 49/00 (2006.01); G01V 1/34 (2006.01); G01V 1/36 (2006.01);
U.S. Cl.
CPC ...
G01V 1/301 (2013.01); E21B 49/003 (2013.01); G01V 1/307 (2013.01); G01V 1/34 (2013.01); G01V 1/366 (2013.01);
Abstract

A method includes generating a seismic shot by a seismic source, the seismic shot directed at a geological subsurface, and receiving, by one or more receivers, a plurality of reflected seismic traces from the seismic shot. The method further includes generating a correlogram of each reflected seismic trace to generate a plurality of correlograms, isolating a coda wave train of each correlogram of the plurality of correlograms, and computing an energy ratio between an energy of the coda wave train of each correlogram and a total energy of a corresponding correlogram of the plurality of correlograms to generate a plurality of energy ratios. The method further includes determining an average of the plurality of energy ratios to generate an average energy ratio of the seismic shot and determining a likelihood of striking a subsurface geohazard when drilling into the geological subsurface based on the average energy ratio.


Find Patent Forward Citations

Loading…