DEPOSITIONAL CHARACTERISTICS AND HYDROCARBON POTENTIALS OF MIOCENE LONGITUDINAL GRAVITY FLOW DEPOSITS IN THE YINGGEHAI BASIN

TAN Jiancai; FAN Caiwei; LI Hui; ZHANG Jianxi; XU Maguang; LIU Tian

doi:10.16562/j.cnki.0256-1492.2017.06.020

2017 Vol. 37, No. 6

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Article navigation > Marine Geology & Quaternary Geology > 2017 > 37(6): 189-196

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TAN Jiancai, FAN Caiwei, LI Hui, ZHANG Jianxi, XU Maguang, LIU Tian. DEPOSITIONAL CHARACTERISTICS AND HYDROCARBON POTENTIALS OF MIOCENE LONGITUDINAL GRAVITY FLOW DEPOSITS IN THE YINGGEHAI BASIN[J]. Marine Geology & Quaternary Geology, 2017, 37(6): 189-196. doi: 10.16562/j.cnki.0256-1492.2017.06.020

Citation:

TAN Jiancai, FAN Caiwei, LI Hui, ZHANG Jianxi, XU Maguang, LIU Tian. DEPOSITIONAL CHARACTERISTICS AND HYDROCARBON POTENTIALS OF MIOCENE LONGITUDINAL GRAVITY FLOW DEPOSITS IN THE YINGGEHAI BASIN[J]. Marine Geology & Quaternary Geology, 2017, 37(6): 189-196. doi: 10.16562/j.cnki.0256-1492.2017.06.020

DEPOSITIONAL CHARACTERISTICS AND HYDROCARBON POTENTIALS OF MIOCENE LONGITUDINAL GRAVITY FLOW DEPOSITS IN THE YINGGEHAI BASIN

Zhanjiang branch of CNOOC Ltd., Zhanjiang 524057, Guangdong, China

Received Date: 06 May 2017

Revised Date: 23 September 2017

Publish Date: 28 December 2017

Abstract

Abstract

Longitudinal gravity flow deposits, as a kind of important deep-water reservoir, are critical to the exploration of natural gas in the Yinggehai Basin for the time being. Based on the integrated drilling, logging, seismic and regional geological data, the depositional characteristics and evolutionary history of the Miocene longitudinal gravity flow in the Basin is studied by the authors. Discussed are also the hydrocarbon accumulation conditions and controlling factors of the lithologic reservoirs of gravity flow. Facts show that the Miocene reservoir is a kind of thick massive fine sandstones favorably deposited in some distributary channels and lobes in deep water. In the time of Miocene, a great amount of sediments was supplied by the Hainan uplift and surrounding fault slope breaks. They filled the longitudinal depressions as gravity flow deposits with favorable forming conditions of lithologic reservoirs characterized by great thickness, large area and proximity to source rocks. Structural fissures are well developed. Therefore, excellent trap conditions are available in the area and they should be the future exploration targets in the Yinggehai Basin.
- Miocene /
- longitudinal gravity flow /
- depositional characteristics /
- exploration potential /
- the Yinggehai basin

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References

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