地震资料处理方法的叠前保幅性研究

doi:10.3969/j.issn.1673-8926.2016.03.014

Lithologic Reservoirs ›› 2016, Vol. 28 ›› Issue (3): 105-112.doi: 10.3969/j.issn.1673-8926.2016.03.014

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Pre-stack amplitude-preserved ability about several seismic data processing methods

Wang Jing¹， Sun Zandong²， Wu Jie¹， Su Qin¹， Zang Shengtao¹

1. PetroChina Research Institute of Exploration and Development-Northwest ， Lanzhou 730020 ， China ； 2. Research Center of Geology and Geophysics ， China University of Petroleum ， Beijing 102249 ， China

Online:2016-05-20 Published:2016-05-20

Abstract

Abstract:

The amplitude-preserved processing has a great significance on reservoir and liquid prediction. In order to study the amplitude-preserved ability of pre-stack processing method, some processing methods including geometry compensation, offset regularization and gather muting, were taken for example and studied in details in many aspects.Firstly the degree of amplitude preservation of these details in theory was analyzed. Then taking the seismic data processing of practical survey for example, the seismic profiles and gathers before and after processing were compared,and the change of AVO amplitude curves in target horizon was analyzed and the effects of these details on the elastic parameters calculation were evaluated. The result shows that to study the amplitude-preserved ability of pre-stack processing method is necessary, and geometry compensation, offset regularization and gather muting all have significance on the amplitude-preserved ability of seismic data and pre-stack AVO inversion.

Key words: low permeability, gas-water two-phase, fractured horizontal wells, stress sensitivity, slippage effect

Wang Jing 1,Sun Zandong 2,Wu Jie 1,Su Qin 1,Zang Shengtao . Pre-stack amplitude-preserved ability about several seismic data processing methods[J].Lithologic Reservoirs, 2016, 28(3): 105-112.

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