公开(公告)号：US20240255669A1

公开(公告)日：2024-08-01

申请号：US18414853

申请日：2024-01-17

Applicant: CHEVRON U.S.A. INC.

Inventor： Ivan LIM CHEN NING ,  Michael Eric CRAVEN ,  Saptarshi DASGUPTA ,  Timothy John TOKAR

IPC: G01V1/50

CPC classification number: G01V1/50 ,  G01V2210/121

Abstract: A method is described for determining well integrity including deploying seismic sensors in a wellbore; attaching a vibrational source to well hardware; using the vibrational source to generate seismic signal that moves through the wellbore; creating a seismic dataset by recording the seismic signal at the seismic sensors; and processing the seismic dataset to make a processed seismic image. The processed seismic image may be displayed on a graphical display in order to identify well integrity problems such as wellbore deformation, well casing damage, or problems with cement.

公开(公告)号：US20240060410A1

公开(公告)日：2024-02-22

申请号：US18269429

申请日：2021-08-31

Applicant: Chevron U.S.A. Inc. ,  University of Houston System

Inventor： Preethi GUNARATNE ,  Gemunu GUNARATNE ,  Gautam PHANSE ,  Courtney A. KOHL ,  Ulises SALAZAR ,  Micah CASTILLO ,  Parthasarathy BHAGAVATULA ,  Caroline STUDNICKY ,  Brandi Elaine Denton JOHNSON ,  Timothy John TOKAR

IPC: E21B43/30 ,  E21B43/26

CPC classification number: E21B43/305 ,  E21B43/26

Abstract: The present disclosure relates to analytic mapping of metagenomic and hydrocarbon footprints of geologic subzones. A plurality of DNA profiles are generated based on a set of distinct geological specimens from each well of a plurality of wells. BioGeo markers, BioGeo signatures and a BioGeo matrix are generated based on the plurality of DNA profiles.