Seismic pressure and acceleration measurement

US11871675B2 · kind B2 · utility

Assignee

• PGS Geophysical AS · NO

Inventors

• Stig Rune Lennart Tenghamn · Katy, US
• David Thomas Booth · Pleinfeld, DE

Key dates

• Filing date: Aug 23, 2022
• Grant date: Jan 9, 2024
• Expiry date: Aug 23, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V2210/32
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A plurality of sensors and a controller are disposed in a marine seismic streamer. Each of the sensors comprises an enclosure having two opposing interior walls, first and second piezoelectric elements disposed on the opposing interior walls, a third piezoelectric element disposed on a flexible substrate within the enclosure between the opposing interior walls, a pressure signal output node and an acceleration signal output node disposed on the exterior surface of the enclosure. A combined pressure signal derived from the pressure signal output nodes of the plural sensors is coupled to a pressure signal input of the controller. A combined acceleration signal derived from the acceleration signal output nodes of the plural sensors is coupled to an acceleration signal input of the controller. The streamer may be towed, and the combined pressure and acceleration signals may be recorded in a computer-readable medium.