Analysis of Seismic Damage Zones: A Case Study of the Ordovician Formation in the Shunbei 5 Fault Zone, Tarim Basin, China

Zhao, Zhan; Liu, Jianwen; Ding, Wenlong; Yang, Ruiqiang; Zhao, Gang

doi:10.3390/jmse9060630

Cited by 6 publications

(2 citation statements)

References 36 publications

(53 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In deep tight reservoirs, seismic technology has been widely used in the fracture network description [10][11][12][13][14][15][16][17]. Constrained by low-resolution seismic data, the conventional seismic methods are generally unfavorable in the identification of deep fractured reservoirs along the fault damage zones.…”

Section: Seismic Description Of Fault Damage Zonementioning

confidence: 99%

“…In the deep subsurface, seismic attributes (such as coherence, amplitude, variance, curvature, etc.) play an important role in describing the fault damage zone and its fractured reservoirs [10][11][12][13][14][15][16]. Recently, seismic process methods, such as maximum likelihood, structural tensor, and illumination have been used to image the deep fault damage zone and fractured reservoirs [8,9,17].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Seismic Description of Deep Strike-Slip Fault Damage Zone by Steerable Pyramid Method in the Sichuan Basin, China

Tang¹,

Tang

Luo³

et al. 2022

Energies

View full text Add to dashboard Cite

Large quantities of gas resources have been found in the Paleo-Mesozoic carbonate rocks in the Sichuan Basin. However, many wells cannot obtain high production in deep low porosity-permeability reservoirs. For this contribution, we provide a steerable pyramid method for identifying the fault damage zone in the Kaijiang–Liangping platform margin, which is infeasible by conventional seismic methods. The results show that steerable pyramid processing could enhance the seismic fault imaging and a series of NW-trending strike-slip faults are found along the trend of the carbonate platform margin. The steerable pyramid attribute presents distinct vertical and horizontal boundaries of the fault damage zone, and heterogeneous intensity of an un-through-going damage zone. The width of the fault damage zone is generally varied in the range of 100–500 m, and could be increased to more than 1000 m in the fault overlap zone, intersection area, and fault tips. Further, the fault damage zone plays a constructive role in the high gas production in the deep tight carbonate reservoir. The results suggest the steerable pyramid method is favorable for identifying the weak strike-slip faults and their damage zone. The width of the fault damage zone is closely related to fault displacement, and the much wider damage zone is generally influenced by the fault overlapping and interaction. The fractured reservoirs in the fault damage zone could be a new favorable exploitation domain in the Sichuan Basin.

show abstract