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Abstract

Summary

The shallow gas cloud’s presence will bring severe travel time distortion and energy absorption to seismic data. For compensating the amplitude and frequency attenuation, Q tomography is the proposed approach. And Bohai Bay is known as its large gas cloud size and complex faults system. It has been a difficulty to recover the energy and image below gas zone for decades in this area. In this paper, we illustrated the application of Q compensation in Bohai Bay for the first time. With careful parameterization of serial preprocessing such as multiple attenuation, depth velocity building and Q field tomography. Final results show that vague zone caused by gas cloud has been reduced obviously. We demonstrated that Q tomography is an effective solution for gas cloud problem in Bohai Bay region.

© EAGE Publications BV
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/content/papers/10.3997/2214-4609.201412774
2015-06-01
2024-04-16

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References

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Compensation of Shallow Gas Cloud Attenuation by Q Tomography - A Bohai Bay Case Study
Conference Proceedings 2015, 1 (2015); https://doi.org/10.3997/2214-4609.201412774
/content/papers/10.3997/2214-4609.201412774
/content/papers/10.3997/2214-4609.201412774
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