徐家围子断陷深层火山岩储层气水层录井评价方法

Gas and Water Layers Logging Evaluation Method of Deep Volcanic Reservoir of Xujiaweizi Fault Depression

松辽盆地北部徐家围子断陷深层火山岩储层类型多样化,气水关系复杂,气水层识别评价难。为了解决以往在深层储层气水层识别评价上的局限性,提高录井解释评价精度,为试气及压裂选层提供可靠依据,应用储层物性及气测资料计算灌满系数及地层含气量评价储层含气性的方法,建立了深层气水层识别标准及评价图版,在生产应用中取得了较好的效果,提高了深层天然气井的录井解释评价精度。

The relationship between gas and water layers of the volcanic reservoir of Xujiaweizi fault depression in Songliao Basin is very complicated.For solving the identification and evaluation limitation of deep volcanic rock layer,new methods are proposed for evaluating reservoir gas and water properties by using formation gas concentration and hydrocarbon fill-up factor parameters in the strata to establish evaluation standard and the deep gas log interpretation chart of volcanic reservoirs,which is used for deep well gas well interpretation and evaluation in Songliao Basin with better results.