Evaluation of Hydrocarbon Accumulation Conditions for Shale Gas from the Eastern Sag of the Liaohe Oilfield and Its Gas-Bearing Properties
详细信息
- 责任者：Xu Bo (Nanpu Oilfield Operation District ; PetroChina Jidong Oilfield Company ; Tanghai 063200 ; China) ; Li Jinghan
- 刊名：Acta Petrolei Sinica
- 出版年：2011
- 卷期：32(3)
- 关键词：油气藏形成 ; reservoir formation ; 储层评价 ; reservoir evaluation ; 辽宁 ; Liaoning Province
- 页码：p.450-458
- 图表：7 illus., 1 table, 29 refs.
- 分类号：1003
- issnNo：ISSN0253-2697
- isbnNo：CN11-2128/TE
摘要
In comparison with the organic matter type,organic carbon abundance,thermal maturity and thickness of source rocks in shale-gas-bearing basins abroad, the present paper preliminarily confirmed the conditions for shale-gas accumulation in the Eastern Sag of the Liaohe Oilfield. The experimental study on gas amounts absorbed by shales indicated that there existed a positive correlation between the absorbed gas amount and the TOC and thermal maturity of dark mud shales in the Eastern Sag, and its adsorbed gas amount was 0.2～1.2 m3/t, basically equal to that of the Gordondale shale in Canada and the Lower Silurian Longmaxi Formation shale of the Sichuan Basin.