DOI: 10.1306/09121313117
Scopus记录号: 2-s2.0-84899583892
论文题名: Assessing the internal character, reservoirpotential,and seal competence of mass-transport deposits using seismic texture: A geophysical and petrophysical approach
作者: Alves T.M. ; Kurtev K. ; Moore G.F. ; Strasser M.
刊名: AAPG Bulletin
ISSN: 0149-1612
EISSN: 1558-9342
出版年: 2014
发表日期: 2014
卷: 98, 期: 4 起始页码: 793
结束页码: 824
语种: 英语
Scopus关键词: Acoustic impedance
; Deposits
; Lithology
; Wave propagation
; Acquisition parameters
; Integrated ocean drilling programs
; Internal architecture
; Mass transport deposit
; Peak shear strength
; Reservoir potential
; Shear-wave velocity
; Threedimensional (3-d)
; Seismology
; borehole geophysics
; data acquisition
; depositional sequence
; mass transfer
; Ocean Drilling Program
; P-wave
; sealing
; seismic data
; shear strength
; three-dimensional modeling
; Brazil
; Japan
Scopus学科分类: Energy
; Earth and Planetary Sciences
英文摘要: Three-dimensional (3-D) seismic volumes from southeast Brazil, southeast Japan, and borehole data from the Ocean Drilling and Integrated Ocean Drilling Programs are used to demonstrate a new method to distinguish mass-transport deposits (MTDs) from confining hemipelagites, quantify MTDs internal architecture, and assess their reservoir potential or seal competence-the contrast, directionality, energy (CDE) method. The CDE values extracted from 3-D seismic data can be tied to any ground-truthed property of strata regardless of their depositional history, age, and lithology. The application of the CDE method is, however, dependent on seismic-data acquisition parameters and selected processing sequences and should be independently applied to different seismic volumes. Borehole data indicate contrast (C) to reflect MTDs lithological heterogeneity and degree of disaggregation, which increase proportionally to the absolute value of C. More uniform values of P-wave velocity (Vp) and peak shear strength are recorded in strata with lower contrast. Directionality (D) relates to the existence of syn- or postdepositional fabric such as compressional ridges, imbricated strata or faults. Energy (E) relates to the acoustic impedance of strata, with high-amplitude reflections correlating with strata with higher shear strength, i.e., high Vp and shear-wave velocity (Vs) values, or with abrupt contrasts in density (bright spots). This work shows that distinct values of C, D, and E reflect variable degrees of vertical and horizontal connectivity in strata and, consequently, their seal and reservoir potential. The CDE values are thus subdivided in nine classes, which are represented in ternary plots to cover the full spectrum of MTDs and any confining strata. As a result, the data in this article confirm that lower seal competence, and higher reservoir potential, is recorded in strata with large D or moderate CDE values. Copyright ©2014. The American Association of Petroleum Geologists. All rights reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84899583892&doi=10.1306%2f09121313117&partnerID=40&md5=877e53398e6b34e1a1862c5311ff082e
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/13182
Appears in Collections: 过去全球变化的重建 影响、适应和脆弱性 科学计划与规划 气候变化与战略 全球变化的国际研究计划 气候减缓与适应 气候变化事实与影响
There are no files associated with this item.
Recommended Citation:
Alves T.M.,Kurtev K.,Moore G.F.,et al. Assessing the internal character, reservoirpotential,and seal competence of mass-transport deposits using seismic texture: A geophysical and petrophysical approach[J]. AAPG Bulletin,2014-01-01,98(4)