Analogue experiments on the piggyback propagation in northwestern Sichuan and latest propagation in its deeps

LUO Qiang; HE Yu; HUANG Jiaqiang; ZHANG Jing; LIANG Xiao; YU Hao; YANG Rongjun; DENG Bin

doi:10.11781/sysydz2020061031

Volume 42 Issue 6

Nov. 2020

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LUO Qiang, HE Yu, HUANG Jiaqiang, ZHANG Jing, LIANG Xiao, YU Hao, YANG Rongjun, DENG Bin. Analogue experiments on the piggyback propagation in northwestern Sichuan and latest propagation in its deeps[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2020, 42(6): 1031-1040. doi: 10.11781/sysydz2020061031

Citation:

LUO Qiang, HE Yu, HUANG Jiaqiang, ZHANG Jing, LIANG Xiao, YU Hao, YANG Rongjun, DENG Bin. Analogue experiments on the piggyback propagation in northwestern Sichuan and latest propagation in its deeps[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2020, 42(6): 1031-1040. doi: 10.11781/sysydz2020061031

Citation:

LUO Qiang, HE Yu, HUANG Jiaqiang, ZHANG Jing, LIANG Xiao, YU Hao, YANG Rongjun, DENG Bin. Analogue experiments on the piggyback propagation in northwestern Sichuan and latest propagation in its deeps[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2020, 42(6): 1031-1040. doi: 10.11781/sysydz2020061031

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Analogue experiments on the piggyback propagation in northwestern Sichuan and latest propagation in its deeps

doi: 10.11781/sysydz2020061031

LUO Qiang^{1, 2
,},
HE Yu¹,
HUANG Jiaqiang³,
ZHANG Jing³,
LIANG Xiao¹,
YU Hao³,
YANG Rongjun³,
DENG Bin^{1
,
,}

1.
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation, Chengdu University of Technology, Chengdu, Sichuan 610059, China
2.
Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China
3.
Research Center of Sichuan Basin, Petrochina Research Institute of Petroleum Exploration and Development, Chengdu, Sichuan 610094, China

Received Date: 2020-03-26
Rev Recd Date: 2020-09-19
Publish Date: 2020-11-28

Abstract

Abstract

Recent explorations reveal a great potential for oil and gas resources in the northwestern Sichuan foreland basin. However, constrained by multi-phase tectonic activities of the Longmenshan-West Sichuan foreland system and the deep burial of the piedmont belt, there remain many uncertainties in the interpretation of petroleum structure models in the foreland concealed tectonic belt. Based on the geometry-kinematics-dynamic similarity theory between the foreland prototype of the northwestern Sichuan and the sandbox analogue model, two groups of controlled experiments were carried out (including standard scaled experiments and analogue experiments with a ramp-flat structure). The fold-thrust belt and foreland basin of the western Sichuan are controlled by two sets of main detachments of the Middle-Lower Triassic gypsum salt and the Lower Cambrian mudstone, leading the layered-style propagation to the foreland in the Late-Middle Cenozoic. The ramp-flat structure plays a profound influence on deep thrust and pop-up structures in the northwestern Sichuan foreland basin. Analogue results combined with seismic interpretation of the northwestern Sichuan illustrates that the main exploration potential may rely on the Paleozoic blind thrust and pop-up structures caused by the latest propagation to the northwestern Sichuan foreland basin.
- physical analogue,
- detachment,
- ramp-flat structure,
- propagation to the foreland,
- thrust and pop-up structures,
- northwestern Sichuan

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References(37)

References

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沈阳化工大学材料科学与工程学院沈阳 110142

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Analogue experiments on the piggyback propagation in northwestern Sichuan and latest propagation in its deeps

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