The Shallow-Water Delta Deposit and Exploration Significance in Huanghekou Depression

Abstract:

As a new kind of deposition system, the shallow-water delta deposit is accepted increasingly by exploration workers in Bohai oil field. In the oil-gas exploration process, more and more evidence about the existence of shallow-water delta was discovered, such as palaeophyte, mudstone characteristic, log response and so on. From the perspective of sequence stratigraphy, the author of this article analyze the causes of shallow-water delta and think that the water-depth change is the major factor that control the throughgoing of shallow-water deltaic sands body; And summarizes the unique characteristic of shallow-water delta which is different to the common delta deposit. Compared to the traditional fluvial sediments, the deposition system of shallow-water delta has better combination of reservoir and cap and superior condition of oil and gas accumulation, and provide more reliable safeguard to shallow layer oil-gas exploration, especially to lithologic reservoirs exploration.

• Periodical: Applied Mechanics and Materials (Volumes 522-524)
• Pages: 1333-1336
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.522-524.1333
• Online since: February 2014
• Authors: Hong Zhong Yu*, Jiao Wang
• Keywords: Huanghekou Depression, Lithologic Reservoir, Lower-Minghuazhen Formation, Shallow-Water Delta

References

[1] Xu Changgui, Wu Fadong. Discovery and sedimentary characteristics of the Neogene delta in Bozhong Depression and its significance for oil and gas exploration[J]. Acta Sedimentologica Sinica, 2002, 20(4): 588-594.

[2] Mi Lijun, Bi Ligang, Gong Shengli, et al. Direct evidence for development of Bohai Paleolake during the Neogene [J]. Marine Geology and Quaternary Geology, 2004, 24(2): 37-42.

[3] Li Dawei. Neotectonism and Neogene oil and gas pools in the Bohai Bay basin[J]. Oil and Gas Geology, 2004, 25(2): 170-174.

[4] Gong Zaisheng. A brief review to some concepts of petroleum exploration in China offshore[J]. China Offshore Oil and Gas, 2002, 16(2): 73-80.