The Discussion of the Evaluation Method of Shale Oil Movable Resources Amount and Palaeogene Shahejie Formation Application Effect in the Northern of Dongpu Depression

WANG Wen-guang，ZHENG Min，WANG Min，LU Shuang-fang，PENG Jun，LU Kun,WU Xiao-zhi，HUANG Ai-hua

doi:10.11764/j.issn.1672-1926.2015.04.0771

2015 , Vol. 26 >Issue 4: 771 - 781

DOI: https://doi.org/10.11764/j.issn.1672-1926.2015.04.0771

The Discussion of the Evaluation Method of Shale Oil Movable Resources Amount and Palaeogene Shahejie Formation Application Effect in the Northern of Dongpu Depression

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1.Geoscience College,Northeast Petroleum University,Daqing 163318,China;
2.Research Institute of Petroleum Exploration Development,PetroChina,Beijing 100083,China;
3.Institute of Unconventional Hydrocarbon and New Energy,China University of Petroleum,Qingdao 266580,China;
4.Research Institute of Exploration & Development,Zhongyuan Oilfield Company,Puyang 457001,China

Received date: 2014-07-02

Revised date: 2014-09-29

Online published: 2015-04-10

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Abstract

China has huge shale oil potential. However,shale oil mobility evaluation affects the exploration and development of shale oil. This study proposes a kind of evaluation method of movable resources amount of shale oil,and includes the following points: (1) The division of shale layer-system and recognition criteria were defined in detail as follows: The start and end sections are greater than 2m shale section. The organic matter maturity and average organic carbon in a single shale layer are greater than 0.5%. Single sandstone thickness is less than 2m. Thin sand layer thickness within accumulated 10m-scope is less than 4m. The total thickness is greater than or equal to 30m. The movable resource evaluation of shale oil refers to the narrow sense. (2) Adsorption oil evaluation model of shale oil,which is established based on shale volume (distribution,thickness),organic carbon and shale density and saturated adsorption coefficient. (3) In situ shale oil evaluation model,which is established depending on the four Parameters: percentage of shale oil,shale volume (distribution,thickness),rock density,heavy hydrocarbon compensation and light hydrocarbon recovery coefficient. (4) Movable resources amount of shale oil. According to material balance principle,movable resources amount of shale oil equals to the amount where in situ resources amount of oil shale minus shale saturated adsorption oil amount. Using the above method,we evaluated the shale oil movable resources amount of shale oil in shale layer-system of Es₁,Es^s₃,Es^z₃,Es^x₃ in the northern Dongpu Depression. The result is that movable resources amount of shale oil in shale layer-system of Es₁,Es^s₃,Es^z₃ and Es^x₃ are 1.27×10⁸t,4.27×10⁸t,2.73×10⁸t and 2.59×10⁸t,respectively. Liutun Sag has huge oil and gas potential.

Key words： Movable resources amount; Shale layer-system; Shale oil; Dongpu Depression; Heavy hydrocarbon compensation; Light hydrocarbon recovery

Cite this article

WANG Wen-guang，ZHENG Min，WANG Min，LU Shuang-fang，PENG Jun，LU Kun,WU Xiao-zhi，HUANG Ai-hua . The Discussion of the Evaluation Method of Shale Oil Movable Resources Amount and Palaeogene Shahejie Formation Application Effect in the Northern of Dongpu Depression[J]. Natural Gas Geoscience, 2015 , 26(4) : 771 -781 . DOI: 10.11764/j.issn.1672-1926.2015.04.0771

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