2011, Volume 13, Issue 5
Strategic Study of CAE >> 2011, Volume 13, Issue 5
Seismic curvature attributes and their application to seismic interpretation
CNOOC Research Institute, Beijing 100027, China
Next Previous
Abstract
Based on the theory of seismic curvature attributes, this paper analyzed features of seismic curvature attributes and found out effective seismic curvature attributes to interpret the seismic data. Suming up the application of the eismic curvature attributes and the notable problems during the process of application,2D curvature attributes explicit physical meanings and obvious advantages in identification of structure characteristics. The attributes are usually related to seismic horizon's geometric shapes(like dip, azimuth and curvature, etc.),which are effective to describe geologic configuration, hierarchy and fault system. Minor faults on general seismic section show the features such as even tiny variety, twist, weaking abruptly of the amplitude.These tiny varieties show small linear structure on curvature attribute of the seismic horizon,so minor faults can be interpreted according to linear structure abnormity. The length of abnormity and directions represent the continued length and directions of faults respectively. The applications show that it is effective and convenient to interpret faults using seismic curvature attributes. The track of the faults and the sizes, shapes and boundaries of sedimentary bodies become continuous and clear. And it is beneficial for fault interpretation.
Keywords
seismic curvature ; fault interpretation ; sedimentary bodies interpretation ; 3D interpreted horizon
Figures
图1
图2
图3
图4
图5
图6
图7
References
[ 1 ] Lisle R J.Detection of zones of abnormal strains in structures u- sing Gaussian curvature analysis [ J ] .AAPG Bulletin, 1994 , 78 : 1811 – 1819. link1
[ 2 ] Roberts Andy.Curvature attributes and their application to 3D in- terpreted horizons[ J] .First Break, 2001 , 19 ( 2 ) :85 -100. link1
[ 3 ] 杜文凤,彭苏萍.利用地震层曲率进行煤层小断 层预 测[ J] .岩 石力学与工程学报,2008 ,27 ( 增 1 ) :2901 -2906. link1
[ 4 ] Satinder Chopra, Kurt J Marfurt.Multi -spectral volumetric cur- vature adding value to 3D seismic data interpretation [ J ] .SEG Expanded Abstracts, 2008 ,27 :1585 -1589. link1
[ 5 ] 赵 贤 正, 张 玮, 邓 志 文, 等.富 油 凹 陷 精 细 地 震 勘 探 技 术 [ M] .北京:石油工业出版社,2009.
[ 6 ] Satinder Chopra, Kurt Marfurt.曲率属性在 3D 地面地震资 料中 的应用[ J] .赵剑敏,吴龙丽摘译.油气地球物理,2007 , 5 ( 4 ) : 50 -59. link1
[ 7 ] Saleh Al -Dossary, Kurt J Marfurt.3D volumetric multi -spectral estimates of reflector curvature and rotation[ J] .Geophysics,2006 , 71 ( 5 ) : 41 -51. link1
[ 8 ] Stewart R, Podolski S A.Curvature analysis of gridded surfaces. In: Coward M P, Daltaban T S, Johnson H.Structural Geology in Reservoir Characterization [ M] .London: Geological Society Spe- cial Publications,1998 ,127 :133 -147.
[ 9 ] Satinder Chopra, Kurt Marfurt.Seismic curvature attributes for mapping faults /fractures, and other stratigraphic features [ J ] . CSEG Recorder, 2007 ,11 :37 -41. link1
[10] 孙尚如.预测储层 裂 缝 的 两 种 曲 率 方 法 应 用 比 较 [ J] .地 质 科技情报,2003 , 22 ( 4 ) :71 -74. link1
[11] 石 瑛,王 赟,芦 俊.煤 田 地 震 多 属 性 分 析 技 术 的 应 用 [ J] .煤炭学报,2008 , 33 ( 12 ) :1397 -1402. link1
[12] 柏冠军.三维地震资料微机管理及 可视 化解 释系 统研究 与开 发[ D] .西安:西北大学硕士学位论文,2006. link1
[13] 王 伟.地震几何属性识别断层技术研究及应用[ D] .青 岛: 中国石油大学( 华东) 硕士学位论文, 2009. link1
京公网安备 11010502051620号
