煤层气地震资料处理关键技术及其应用
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摘要
沁水盆地地表条件复杂,盆地内山地、黄土塬交替发育,高程变化较大,部分地震剖面品质较差,影响煤层气储层的准确分辨与描述。通过对沁水盆地煤层气地震资料处理方法研究,探索出适用于该地区的地震资料处理方法与关键技术,包括煤层分布区高精度静校正技术、基于井约束的高分辨率处理技术以及分方位处理技术等。这些技术为深化研究该区煤层的地质构造特征以及进行煤储层的裂缝预测和含气性检测奠定了良好基础。
Qinshui basin,whose surface conditions is complex with alternatively developed mountain and loess tableland and quickly changed elevation,has some poor quality seismic profiles,which affecting the accurate resolution and description of CBM reservoirs.By research of CBM seismic data processing method of Qinshui basin,the suitable processing methods and key technologies for this area are explored including high precision static correction technology,high resolution processing technology based on well controlled and azimuth processing technology.These processing technologies lay a good foundation for the geological structure characteristics researches deepening,coal reservoir fracture prediction and gas bearing detection.
Qinshui basin,whose surface conditions is complex with alternatively developed mountain and loess tableland and quickly changed elevation,has some poor quality seismic profiles,which affecting the accurate resolution and description of CBM reservoirs.By research of CBM seismic data processing method of Qinshui basin,the suitable processing methods and key technologies for this area are explored including high precision static correction technology,high resolution processing technology based on well controlled and azimuth processing technology.These processing technologies lay a good foundation for the geological structure characteristics researches deepening,coal reservoir fracture prediction and gas bearing detection.
引文
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[2]王守东.复杂地表波动方程反演延拓静校正[J].石油地球物理勘探,2005,40(1):31-34.
[3]刘占族,曹孟起,孙军晓,等.煤层气地震勘探中的静校正方法[J].石油地球物理勘探,2012,47(3):425-429.
[4]徐朝繁,张先康,刘宝金,等.高分辨折射地震资料处理方法及其应用[J].地球物理学进展,2005,20(4):1052-1058.
[5]张保庆,周辉,左黄金,等.宽方位地震资料处理技术及应用效果[J].石油地球物理勘探,2011,46(3):396-400,406.
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