Methods and apparatus of source control for synchronized firing of air gun arrays with receivers in a well bore in borehole seismic

US8687460B2 · kind B2 · utility

Assignee

• SCHLUMBERGER TECHNOLOGY CORPORATION · US

Inventors

• Emmanuel Coste · Oslo, NO
• John Richard Tulett · Yokohama, JP
• Hiroshi Nomura · Minnetonka, US
• James Edward Martin · Tvedestrand, NO

Key dates

• Filing date: Mar 13, 2008
• Grant date: Apr 1, 2014
• Expiry date: Jan 16, 2032

Classification

• Technology area (CPC G): Physics
• CPC primary: G01V1/42
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

Methods and apparatus for generating borehole seismic surveys are disclosed. The methods and apparatus enable more accurate surveys than previous surveying systems. In some embodiments, firing of remote seismic sources is synchronized with data recording in a borehole. In some embodiments, the synchronization is based on a universal time standard. In some embodiments, GPS positioning technology is used to predict firing times and synchronize firing times with downhole and surface recording.