用压裂退液资料评价压裂效果

EVALUATION OF FRACTURING EFFECT WITH FRACTURING FLUID WITHDRAWAL DATA.

根据克拉玛依小拐油田的压裂退液资料，总结了该油田的退液特征，绘制出Ｃｌ－—ＱＰ曲线，根据Ｃｌ－—ＱＰ曲线来预测油水层；提出了压裂液退液参数，利用这些参数可判断地层的供液能力、渗透率、压裂所造裂缝的导流能力、压裂后地层受污染的情况，并可对压裂效果作出定性评价，分析判断中低产井低产的原因，为制定下一步生产措施提供依据。

Based on fracturing fluid withdrawal data in Xiaoguai oilfield, its characteristics were summerized, and Cl- —Qp curve prepared for predicting oil/water layer. Furthermore, the parameters of fracturing fluid withdrawal were presented to identify formation deliverability, permeability, fracture conductivity and post fracturing formation damage and to qualititively evaluate fracturing effect and determine the reason of low production of oil well. All these offer basis for drawing up next development project.