含油层早期产能预测方法

油藏勘探阶段 ,利用录井地化热解资料可以准确地求取原油粘度和含油饱和度。在此基础上 ,建立储层油相渗透率与含油饱和度关系模型 ,避免了在资料较少情况下求取油相渗透率的不确定性。根据流体渗流理论 ,利用原油产能指示参数预测模型可以对产层进行原油产能预测。对胜利油田不同层位、不同流体性质、不同含油性等储层的 33口井 42层产能预测结果与试油结果进行了对比。结果表明 ,利用该方法能进行早期产能预测 ,并且能够达到较高的预测精度。

A method for predicting oil productivity of oil-bearing bed in exploration period

In exploration period of hydrocarbon reservoir, oil density, viscosity and saturation can be determined using geo-chemical pyrolysis data. On the basis of above method, a correlation model for oil permeability and oil saturation was built. This model can eliminate the uncertain factors in computation of oil relative permeability under the condition of less information. According to the theory of fluid seepage flow, oil-bearing productivity was predicted using the productivity index per meter. The oil productivities of 33 wells in 42 layers in different reservoirs of Shengli oilfields were predicted with this method. A high precision of prediction has been achieved, which proves this method favorable for predicting oil productivity in exploration period of reservoir.