Control Factors of Enrichment and Producibility of Shale Oil:A Case Study of Biyang Depression
Li Jijun
Shi Yinglin
Zhang Xinwen
Chen Xiang
Yan Yongxin
Zhu Jingxiu
Lu Shuangfang
Wang Min
Abstract：This paper discusses the key control factors of shale oil enrichment and producibility.It is found that whether shale oil can effectively accumulate and has producibility is mainly controlled by six factors,namely,hydrocarbon generation amount,porosity,preservation condition,reservoir reconstruction condition,crude oil property and development scheme.A break-through of shale oil development has been made in Anshen-1 Well and Biye-1 Well due to their advantages for shale oil enrichment and producibility,including high organic matter abundance,excellent organic matter type and high brittle mineral content,good development of lamellation,structural fracture.But there are also disadvantages.Firstly,maturity of organic matter is low,which influences oil content of shale and physical property of crude oil.Secondly,there is no overpressure in Biy-ang depression,indicating the preservation condition of shale oil is not good and the stratum energy is low.So the southeast ar-ea where the shale has higher depth can be the favorable area for shale oil exploration and exploitation.It is concluded that the decrease of reservoir pressure shall be delayed during production due to the influence of dissolved gas amount on physical prop-erty of crude oil and the stress sensitivity of low permeability reservoir.
Keywords：shale oilenrichmentproducibilitycontrol factorBiyang depressionpetroleum geology
Publication Date：2014-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：10( 848-857 )