摘要：Ultra-deep carbonate reservoirs are developed in the Shunbei area and are highly heterogeneous, forming a "grid-like" reservoir combination in which tight bedrock and reservoirs are staggered. Existing information indicates that the internal reservoir structure of this type of combination is complex. Not only are the individual reservoirs smaller in size, but the intervals between reservoirs are also smaller. Although the amplitude attribute of seismic data can indicate the location of the area where the reservoir is combined, due to the resolution of the seismic data, it is difficult to effectively characterize the internal structure of the reservoir based on seismic data and traditional seismic attribute analysis. The difficulty impacts the accuracy of reservoir prediction as well as drilling track design. This paper uses the W transform to carry out high-resolution time-frequency analysis and expand the one-dimensional time-domain seismic traces into the two-dimensional time-frequency domain. The peak energy of the time-frequency spectrum estimated with the W transform is consistent with the peak frequency of seismic traces. And the spectrums are symmetrically distributed to seismic peak frequency, with higher resolution at frequencies deviated from the peak frequency, form a spindle-like shape. What is more, the resolution at peak frequency is consistent with that of seismic trace. Therefore, we use rich, high-resolution seismic time-frequency spectral information to more accurately identify and characterize the ultra-deep "grid-like" reservoir combination in the Shunbei area. ? 2025 Editorial Office of Chinese Journal of Geophysics. All rights reserved.

ISSN号：0001-5733

卷、期、页：卷68期4页1533-1541

发表日期：2025-04-01

影响因子：0.000000

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：地球物理学报/CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION/Acta Geophysica Sinica

参与作者：李宗杰,龚伟,李弘燕

通讯作者：周子康

第一作者：饶莹,赵振聪

论文类型：期刊论文

论文概要：李宗杰,饶莹,赵振聪,龚伟,李弘燕,周子康，Delineation of ultra-deep grid-like reservoirs based on W transform，地球物理学报/CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION/Acta Geophysica Sinica，2025，卷68期4页1533-1541

论文题目：Delineation of ultra-deep grid-like reservoirs based on W transform