Geochemical characteristics and oil-source correlation of Well Y in Hari depression, Yingen-Ejin basin

LU Jincai; WEI Xianyang; WEI Jianshe; SONG Bo; SHI Jizhong

2018 Vol. 37, No. 1

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LU Jincai, WEI Xianyang, WEI Jianshe, SONG Bo, SHI Jizhong. Geochemical characteristics and oil-source correlation of Well Y in Hari depression, Yingen-Ejin basin[J]. Geological Bulletin of China, 2018, 37(1): 100-106.

Citation:

LU Jincai, WEI Xianyang, WEI Jianshe, SONG Bo, SHI Jizhong. Geochemical characteristics and oil-source correlation of Well Y in Hari depression, Yingen-Ejin basin[J]. Geological Bulletin of China, 2018, 37(1): 100-106.

Geochemical characteristics and oil-source correlation of Well Y in Hari depression, Yingen-Ejin basin

Xi'an Geological Survey Center, China Geological Survey, Xi'an 710054, Shaanxi, China

Received Date: 07 July 2017

Revised Date: 29 August 2017

Publish Date: 25 January 2018

Abstract

Abstract

Well Yin in the Hari depression is the first parameter well which reveals thickness of Permian strata. Additionally, the open flow capacity of this well reaches 91500m³ natural gas per day together with a little condensate oil. Based on the component and isotope analysis of natural gas and condensate oil biomarkers, this paper discusses the original type of natural gas and condensate oil of Well Y. The result shows that the natural gas is saprogelic type-associated gas, whereas the condensate oil is high maturity sapropelic oil. The parent material of raw hydrocarbon is dominated by aquatic organisms. The evolution of source rocks gets into high maturity stage. It shows well affinity correlation with hydrocarbon source rock of the lower Permian Maihanhada Formation in Hangwula profile, Hari depression. Apparently, the condense oil and natural gas of Well Y was derived from the Permian strata. Additionally, it is verified that the Carboniferous-Permian strata has good hydrocarbon prospects in Yingen-Ejin basin.
- Yingen-Ejin basin /
- Hari depression /
- Permian /
- natural gas /
- condensate oil /
- oil and gas source correlation

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References

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