Methods and systems for seismic monitoring

US12429617B1 · kind B1 · utility

Assignee

• KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS · SA

Inventors

• Leo Eisner · Praha, CZ
• Oleh Kalinichenko · Praha, CZ
• Frantisek Stanek · Velešín, CZ
• Umair Bin Waheed · Dhahran, SA
• Sherif Mahmoud · Munich, DE
• Zuzana Jechumtalova · Praha, CZ

Key dates

• Filing date: May 14, 2025
• Grant date: Sep 30, 2025
• Expiry date: May 14, 2045

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V2210/1429
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system for determining a depth z to install a borehole receiver in a monitoring borehole includes a seismic source, a seismic receiver, an antenna, a computing device and a drilling system. The seismic source generates surface waves having multiple frequencies in a frequency band of interest within a geologic formation such as a subterranean reservoir. The seismic receiver is placed at a distance d from the seismic source, to receive the surface waves. The computing device determines a smallest frequency f1 of the multiple frequencies. The computing device further determines a surface wave velocity v for the smallest frequency f1. The computing device further calculates a longest wavelength WL of the surface wave in the frequency band of interest based on WL=v/f1. The borehole receiver is installed, e.g., with the drilling system, in the monitoring borehole at the depth z equal to the longest wavelength WL.