八面河油田水淹层储层性质变化及测井响应特征研究

The dynamic change of reservoir property and Characteristics of well-logging response to water-flooded reservoir in Bamianhe Oil Field

随着油田水驱开发程度的不断提高,油田的水淹程度日趋增高,导致储层的岩石物理化学性质、孔隙结构、流体性质、以及油气水分布状态等,都会发生不同程度的改变,对于非均质性强、孔隙结构复杂的储层,其变化更趋复杂,给水淹层的识别、解释评价带来极大的困难。因此,研究油层水淹规律、水淹前后储层的性质变化及测井响应特征的变化规律,对油田开发后期的测井解释、精细储层剩余油描述,及方案调整具有十分重要的指导意义。

The level of water-out reservoir became more and more high day by day,with the increasing of water flooding recovery in Oilfield,and this has resulted in varying changes in the property of reservior rock,such as physicochemical property,pore geometry,fluid properties,distribution of oil-gas-water,and so on.In particular,it will become more complex for resoviors which have the features of strong heterogeneity and complex primary pore structure.All these changes would bring us to dilemma on identificating and interpretating water-flooded zones.As a result,it is necessary to study waterflooding regularity,dynamic changes of reservoir property,and characteristics of well-logging response to water-flooded reservoir,because those are significant to well logging interpretation,residual oil describing,and oilfield development adjustment.