苏丹探区沼泽过渡带地震采集技术

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英文篇名：Seismic Acquisition Technology of Swamp Transitional Zone in Sudan 中文刊名：中国石油勘探 英文刊名：China Petroleum Exploration 作者：沈万杰 ; 于冬梅 ; 碗学俭 ; 刘长青 ; 杨素玉 ; 王永平 ; 方超 英文作者：Shen Wanjie ; Yu Dongmei ; Wan Xuejian ; Liu Changqing ; Yang Suyu ; Wang Yongping ; Fang Chao Geophysical Prospecting Company of SINOPEC Zhongyuan Oilfield Company ; Puyang City ; Henan Province 457001 中文关键词：苏丹 ; 沼泽 ; 过渡带 ; 采集 ; 吸收 ; 衰减 英文关键词：Sudan ; swamp ; transitional zone ; acquisition ; absorption ; attenuation 出版日期：2009-12-15 机构：中国石化中原油田分公司地球物理勘探公司; 年：2009 期：06 出版单位：中国石油勘探

摘要

苏丹沼泽过渡带是陆地—浅水沼泽—深水沼泽的地表,由于地表地质条件变化大,导致地震波能量与频率吸收衰减差异很大。在该区包含旱地—过渡带—深水沼泽3种整套施工方法。通过分析苏丹沼泽过渡带工区各种近地表条件,建立地表地质结构吸收衰减模型,为进一步研究地震波吸收衰减与沼泽勘探施工的关系提供依据;通过对比试验确定优选参数,优选地震波激发和接收条件,达到减弱地震波吸收衰减的目标。
The surface of swamp transitional zone in Sudan is highland,shallow swamp and deep swamp,its geological and surface conditions vary greatly,so there is too much difference in absorbing energy and frequency of seismic waves.Three different operation methods(highland,transitional zone and deep swamp) are used for the area.The geological structure of surface absorption attenuation model is established by analyzing various surface conditions,and it provides the basic theory to probe into the relationship between absorption/attenuation of seismic waves and exploration operation in swamp area.After various comparison tests,reasonable parameters are fixed,optimization source and receiver conditions are selected,and the objective for absorption attenuation of seismic waves are achieved.

引文

[1]周发详.吸收衰减对地震分辨率的影响[J].石油地球物理勘探,2008,(S2):84～87.