干旱区生态环境知识资源中心(Arid): 准噶尔盆地腹部二次三维地震勘探主要技术与效果

Arid

	准噶尔盆地腹部二次三维地震勘探主要技术与效果
其他题名	Results and Technologies of Second-Time 3D Seismic Prospecting in Hinterland of Junggar Basin
	雷德文 1; 吕焕通 2; 黄永平 3; 杨晓海 4
来源期刊	新疆石油地质
ISSN	1001-3873
出版年	2005
卷号	26 期号:5 页码:510-512
中文摘要	20世纪90年代在准噶尔盆地开展了以大面元区带三维为主的一次三维地震勘探,旨在寻找大中型构造油气藏,成效显著.进入新世纪以来,随着勘探目标向岩性-地层型油气藏转换,一次三维精度不足的缺陷逐渐显现,为此,在地质评价非常高的一次三维覆盖区开展了二次三维地震勘探.二次三维地震勘探突出应用了5项技术措施,即宽方位角观测与束间耦合,常规面元或小面元采集,地表相对潮湿季节施工,根据表层条件优选激发参数和应用中高频检波器接受与炮检联合组合.在厚沙漠区,二次三维资料主频比一次三维高15～20 Hz,达到45～50 Hz,其信噪比、保真度也有很大提高.对小断裂、不整合面、尖灭点和砂体的地震反射成像清晰度明显提高,岩性圈闭识别能力增强.
英文摘要	The first-time 3D seismic exploration activities have been made since 1990’s, which were dominated by regional 3D seismic with large bin size, aiming at finding out large- to medium-sized structural traps and reservoirs, and lots of significant achievements were made. With the advent of new century, the insufficient precision of the first-time 3D seismic activities appeared gradually as the focus of prospecting toward lithologic-stratigraphic reservoirs. So it is necessary to perform the second-time 3D seismic activities in highly evaluat-ed areas covered with 3D seismic survey before. And 5 different technologies are applied such as wide-azimuth geometry and swath cou-pling, acquisition with normal or small bin size, seasonal or relatively wet surface acquisition, selection of source parameters by surface condition and application of medium-high frequency geophone and source-geophone array to receive seismic wave. In thick desert area, the main frequency of 45-50 Hz is used, about 15-20 Hz higher than the first-time 3D data, and signal to noise ratio and fidelity are sig-nificantly improved. As a result, the seismic reflection image definitions of small faults, unconformity surface, pinchout point and sand-body are also improved markedly and the recognition capability of the lithologic traps are intensified in terms of geologic effect.
中文关键词	准噶尔盆地 ; 腹部 ; 岩性圈闭 ; 地震勘探 ; 大面元 ; 二次三维地震勘探
英文关键词	Junggar basin hinterlnn’d lithologic trap seismic prospecting large bin size second-time 3D seismic exploration
语种	中文
国家	中国
收录类别	CSCD
WOS类目	SURGERY
WOS研究方向	Surgery
CSCD记录号	CSCD:2036590
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206811
作者单位	1.中国石油,新疆油田分公司,勘探开发研究院, 克拉玛依, 新疆 834000, 中国; 2.中国石油,新疆油田分公司, 克拉玛依, 新疆 834000, 中国; 3.中国石油,东方地球物理公司,新疆地调处, 乌鲁木齐, 新疆 830011, 中国; 4.中国石油,新疆油田分公司,勘探开发研究院,地物所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	雷德文,吕焕通,黄永平,等. 准噶尔盆地腹部二次三维地震勘探主要技术与效果[J],2005,26(5):510-512.
APA	雷德文,吕焕通,黄永平,&杨晓海.(2005).准噶尔盆地腹部二次三维地震勘探主要技术与效果.新疆石油地质,26(5),510-512.
MLA	雷德文,et al."准噶尔盆地腹部二次三维地震勘探主要技术与效果".新疆石油地质 26.5(2005):510-512.