ANALYSIS ON THE STRUCTURE AND ACCUMULATION DIFFERENCES OF HONGCHE FAULT BELT IN JUNGGAR BASIN

WU Kong-you; GUO Jian-xun; YAO Wei-jiang; LIU Qing; LIU Yin; LIU Bo

2019 Vol. 28, No. 1

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WU Kong-you, GUO Jian-xun, YAO Wei-jiang, LIU Qing, LIU Yin, LIU Bo. ANALYSIS ON THE STRUCTURE AND ACCUMULATION DIFFERENCES OF HONGCHE FAULT BELT IN JUNGGAR BASIN[J]. Geology and Resources, 2019, 28(1): 57-65.

Citation:

WU Kong-you, GUO Jian-xun, YAO Wei-jiang, LIU Qing, LIU Yin, LIU Bo. ANALYSIS ON THE STRUCTURE AND ACCUMULATION DIFFERENCES OF HONGCHE FAULT BELT IN JUNGGAR BASIN[J]. Geology and Resources, 2019, 28(1): 57-65.

ANALYSIS ON THE STRUCTURE AND ACCUMULATION DIFFERENCES OF HONGCHE FAULT BELT IN JUNGGAR BASIN

1.
School of Geosciences, China University of Petroleum(East China), Qingdao 266580, Shandong Province, China
2.
Geophysics Research, Institute of Exploration and Development, Xinjiang Oilfield Branch, CNPC, Urumqi 830013, China
3.
Jiangsu Oilfield Branch, SINOPEC, Yangzhou 225012, Jiangsu Province, China

More Information

Corresponding author: GUO Jian-xun, 775465610@qq.com

Received Date: 05 February 2018

Revised Date: 11 April 2018

Publish Date: 28 February 2019

Abstract

Abstract

Fractures in the Hongche fault belt are highly developed with complex system and a long extension of major fault. There are obvious differences in the fault characteristics and reservoir-forming control in different spatial parts. Based on the logging, core and high-precision 3D seismic data, according to the differences in fault property, combination style and activity intensity, the Hongche fault belt, in plane view, can be divided into two segments of north and south which are dominated by reverse and strike-slip faults respectively; while in profile, divided into upper extension and lower compression fault systems. The fault structure is developed in deep with strong cementation. The study on the fluid inclusions and cementation degree of fractures indicate that the sealing capacity of deep fault is poor in the early stage, yet that in the north getting better with the cementation process. The fracture is undeveloped in the sand-mudstone interbedded shallow part of the fault belt. The results of SGR, Rm, F and IFT suggest that the sealing of shallow part vary greatly in different periods. Specifically, the sealing of north segment is better than that of south in Early Cretaceous, while the case is the opposite during Middle and Late Paleogene-Early Neogene. The reservoir in the north is more abundant than that in the south, corresponding to ladder-like and flowerlike accumulation models separately.
- fractural structure /
- fault system /
- reservoir-controlling difference /
- Hongche fault belt /
- Junggar Basin

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References

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