公开(公告)号：US11163086B2

公开(公告)日：2021-11-02

申请号：US16477109

申请日：2018-01-10

Applicant: University of Houston System

Inventor： Jiefu Chen ,  Xinyu Liu ,  David R. Jackson

IPC: G01V3/30 ,  E21B47/002 ,  E21B49/00 ,  G01N22/00

Abstract: An oil-based mud wellbore imaging apparatus for measuring formation permittivity and resistivity includes a reflectometry-type microwave scanning system. The system contains at least one high-Q microstrip resonator with one or more slots on the top surface. The microstrip resonator is excited by one port, which is fed with electromagnetic signals by a coaxial cable. From the phase detection of signal at the port, the formation resistivity and permittivity can be determined and corresponding borehole images can be generated.

公开(公告)号：US20230249790A1

公开(公告)日：2023-08-10

申请号：US18105563

申请日：2023-02-03

Applicant: UNIVERSITY OF HOUSTON SYSTEM

Inventor： Zheng Chen ,  Miao Pan ,  Jiefu Chen

IPC: B63G8/00 ,  G01N31/22 ,  G01N33/00 ,  G01N33/18 ,  G06N3/008 ,  B63G8/08 ,  G05D1/00

CPC classification number: B63G8/001 ,  B63G8/08 ,  G01N31/221 ,  G01N33/004 ,  G01N33/0062 ,  G01N33/1886 ,  G05D1/0022 ,  G05D1/0044 ,  G06N3/008 ,  B63G2008/004

Abstract: A method for detecting and locating a carbon dioxide leak in a submarine environment includes operating autonomous underwater vehicles (AUVs) in the submarine environment, where the operating includes obtaining, with each AUV of the AUVs, measurements of an attribute indicative of carbon dioxide, communicating, while operating the AUVs, the measurements from the each AUV to other AUVs of the AUVs, mapping, while operating the autonomous AUVs, carbon dioxide concentration in the submarine environment, and guiding the AUVs toward a highest concentration of the carbon dioxide concentration based on the mapping.