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Numerical Simulation of Stress Field and Fault Genesis Analysis of Hanliu Fault Zone in Gaoyou Sag of Subei Basin, China(PDF)

《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

Issue:
2018年第06期
Page:
746-756
Research Field:
基础地质与矿产地质
Publishing date:

Info

Title:
Numerical Simulation of Stress Field and Fault Genesis Analysis of Hanliu Fault Zone in Gaoyou Sag of Subei Basin, China
Author(s):
YANG Hai-meng ZOU Juan MA Shi-lei ZHAO Zong-bo LU Ning-ning
1. No.3 Oil Recovery Plant, Zhongyuan Oilfield Company, SINOPEC, Qingfeng 457000, Henan, China; 2. Research Institute of Petroleum Exploration and Development, Jidong Oilfield Company, PetroChina, Tangshan 063004, Hebei, China; 3. Department of Geology, Northwest University, Xi’an 710069, Shaanxi, China; 4. Drilling and Production Company, CNOOC Energy Technology and Services Ltd., Tianjin 300452, China
Keywords:
stress field genetic mechanism fault tectonic evolution throw Funing period Sanduo period Subei Basin
PACS:
P554;TE121
DOI:
-
Abstract:
On the basis of geological, seismic and logging data, the fault genetic mechanism of Hanliu fault zone in Gaoyou sag of Subei Basin was analyzed by applying the equilibrium profile technique, fault throw method and numerical simulation of structural stress field. The results show that the faults of Hanliu fault zone in Gaoyou sag mainly strike NEE, EW and NW, the plane fault combination styles are parallel-aligned, skew-type and pinnate-type, and the profile fault combination styles are ladder-like style, Y-type and multiple Y-type; the faults with SSE-trending develop during Funing period, and the secondary faults mainly develop during Sanduo period; the plane shear stress is negative during Funing period in the middle and southern Hanliu fault zone, controlling the formation of faults with NEE-striking, while the value is positive in the northern area, controlling the formation of faults with nearly EW-striking, and the profile shear stress is negative in Hanliu fault zone, controlling the formation of faults with SE-trending; the plane shear stress is negative during Sanduo period in the northern and partial southern Hanliu fault zone, controlling the formation of faults with NEE-striking, while the value is positive in the middle area, controlling the formation of faults with nearly EW- and NW-striking, and the profile shear stress is positive in the northern Hanliu fault zone, controlling the formation of faults with SE-trending, while the value is negative in the southern area, controlling the formation of faults with NW-trending.

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Last Update: 2018-12-06