Method and apparatus for processing seismic data

US10705238B2 · kind B2 · utility

Assignee

• PetroChina Company Limited · CN

Inventors

• Guangrong Zhang · Beijing, CN
• Fusen Xiao · Beijing, CN
• Qi Ran · Beijing, CN
• Shirong Zhang · 红钢城街道, CN
• Yi-Che YU · Beijing, CN
• Qi Liao · Stuttgart, DE
• Bo Ma · Nanhu, CN
• Han-Ming Liang · Beijing, CN
• Kang Chen · Nanhu, CN
• Xuan Zhang · Monroeville, US
• Xiaomin Lu · Austin, US

Key dates

• Filing date: Jan 29, 2018
• Grant date: Jul 7, 2020
• Expiry date: Dec 16, 2038

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V2210/57
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The present disclosure discloses a method and an apparatus for processing seismic data, and belongs to the field of geological surveys. The method comprises: stacking seismic trace gathers in a predetermined range among S seismic trace gathers after a Normal Move Out (NMO) correction processing to obtain a model trace, S being an integer; calculating a correlation coefficient of each seismic trace gather with the model trace, and selecting a K-th seismic trace gather with a maximum correlation coefficient; calculating an optimum point of each seismic trace gather from the K-th seismic trace gather to two sides orderly; and performing a residual NMO correction of the seismic trace gathers according to the optimum points.