APPLICATION OF THE SUBTLE OBJECT PROCESSING OF SEISMIC DATA TO SEQUENCE STRATIGRAPHY
-
摘要: 高分辨率层序地层学的发展,要求运用高分辨率地震勘探技术进行精细目标处理,以寻找隐蔽性圈闭.小波理论作为傅里叶变换的继续和发展,具有时频局部性的特征,可以提高信噪比和分辨率.在准噶尔盆地阜东斜坡区侏罗系层序地层学的研究过程中,通过小波处理软件WTDECON的应用,地震剖面上信噪比和分辨率都有明显的提高,并在三工河组确定出6个三角洲前缘滑塌浊积扇砂体,经地震资料的精细目标处理和地震反演及道积分剖面处理,进一步证实了深水浊积扇砂体的分布位置及砂岩属性,为在阜东斜坡区侏罗系寻找自生自储式隐蔽岩性圈闭提供了可靠的地球物理信息.Abstract: With the development of high resolution sequence stratigraphy,it is necessary to use high resolution seismic exploration technology to do subtle object processing in order to seek concealed stratigraphic traps. Based on the Fourier transformation and with the characteristics of time and frequency localization,the wavelet theory can raise the signal to noise ratio and resolution of seismic data. In the study of the Jurassic sequence stratigraphy in Fudong Slope area of the Junggar Basin,the application of wavelet processing software WTDECON has greatly improved the signal to noise ratio and the resolution in seismic sections. In addition,six delta front fluxoturbidite fan sandbodies were ascertained in the Sangonghe Formation. By the subtle object processing of seismic data,seismic inversion and trace integration section processing,the distribution location of deep water fluxoturbidite fan sandbodies and the properties of sandstone were confirmed. This will provide reliable geophysical information for seeking concealed lithologic traps with self grown and self reserved oil and gas in the Jurassic of Fudong Slope area in the Junggar Basin.
-
Key words:
- lens-like sandbody /
- signal-to-noise ratio /
- resolution /
- wavelet transformation /
- seismic data /
- Jurassic /
- Fudong Slope area /
- the Junggar Basin
-
[1] 王进海,朱敏.高分辨率资料处理与高信噪比资料[J].石油地球物理勘探,1996,31(4):577-596. [2] 曹务祥.利用小波包算法提高地震资料分辨率[J].石油地球物理勘探,1996,31(5):704-711. [3] 张军华,乐友喜,陆基孟.小波变换和分形属性在提高地震资料分辨率中的应用[J].石油物探,1997,36(3):13-17. [4] 张志禹,高静怀,秦卫阳,等.小波变化用于高分辨率三瞬参数提取研究[J].煤田地质与勘探,1998,26(1):54-57. [5] 李鲲鹏,刘业新,李衍达,等.小波变换的过零点特性与地震勘探信号的信噪比和分辨率[J].地球物理学报,1997,40(4):562-569. [6] 吴爱弟,牟永光.二维小波变换在提高地震资料分辨率中的应用[J].石油物探,1997,36(1):36-42. [7] 陈遵德.小波变换压噪[J].煤田地质与勘探,1994,22(5):53-58. [8] 张满郎,朱筱敏,张琴.准噶尔盆地东部侏罗系沉积体系及油气意义[J].石油与天然气地质,2000,21(3):272-278. [9] 张琴,朱筱敏,张满郎. 准噶尔盆地阜东斜坡区侏罗系地震相研究[J].石油大学学报,2001,25(1):72-76. [10] 张满郎,张琴,朱筱敏,等.准噶尔盆地阜东斜坡区侏罗系层序地层学研究[J].古地理学报,2000,2(3):27-36. [11] 朱筱敏.层序地层学原理及应用[M].北京:石油工业出版社,1998.11-55. [12] 顾家裕,等.层序地层学及其在油气勘探开发中的应用[M].北京:石油工业出版社,1997.5-24. [13] 刘立,等.湖相油页岩的沉积环境及其层序地层学意义[J].石油实验地质,1996,18(3):311-316. [14] 何海清.浙江省栖霞组沉积微相、韵律、沉积旋回及层序地层学分析[J].石油实验地质,1997,19(2):127-132. [15] 陆永潮.层序地层学在碎屑岩成岩作用研究中的应用——以YA13-1气田下第三系为例[J].石油实验地质,1999,21(2):100-103,108. [16] 游俊.陆相层序地层学应用中几个问题的讨论[J].石油实验地质,1999,21(2):104-109. [17] 宋国奇.应用层序地层学方法恢复加里东期古地貌——以济阳坳陷沾化地区为例[J].石油实验地质,2000,22(4):350-354. -
计量
- 文章访问数: 858
- HTML全文浏览量: 70
- PDF下载量: 277
- 被引次数: 0
下载:
苏公网安备32021102000780号