标题:
湖南永顺区块龙家寨向斜龙马溪组页岩气资源潜力评价The Resource Potential Evaluation of Shale Gas in Longmaxi Formation of Longjiazhai Syncline of Yongshun Block in Hunan Province
作者:
万洪波, 胡端义, 易宗兵
关键字:
永顺区块, 龙家寨向斜, 龙马溪组, 页岩气, 储量Yongshun Block, Longjiazhai Syncline, Longmaxi Formation, Shale Gas, Reserves
期刊名称:
《Journal of Oil and Gas Technology》, Vol.39 No.5, 2017-10-15
摘要:
湖南永顺区块内龙家寨向斜志留系龙马溪组页岩为深水陆棚沉积环境，具有页岩气成藏和保存条件，在永页3井的钻探过程中，运用生油岩综合评价仪分析岩心样品的试验方法，获得了总有机碳质量分数和热解峰温等地化参数。分析表明，有效页岩有机质类型为I型，且已进入到成熟演化阶段，生气强度约为9 × 108 m3/km2，利用成因体积法计算该向斜页岩气总地质储量为288 × 108 m3，资源丰度类比法计算总地质储量为87 × 108 m3。
The shale of Silurian Longmaxi Formation in Longjiazhai Syncline of Yongshun Block in Hunan Province was a deposit of deep water continental shelf facies with shale gas accumulation and preservation conditions. During the drilling of Well Yongye 3, w (TOC) and tmax etc parameters of source rock were obtained from core analysis by the source rock comprehensive evaluation de-vice. The analysis shows that the effective shale has type I organic matter and gas generation in-tensity is 9 × 108 m3/km2, and it enters into a mature stage. The total geologic shale gas reserves of the syncline calculated by volumetric method and abundance analogue method are 288 × 108 m3 and 87 × 108 m3 respectively.