水力深穿透射孔技术应用效果预测

为了对水力深穿透射孔技术实施后的效果进行预测,提出了水力深穿透射孔应用效果的预测方法。将水力深穿透射孔近似看作1组多分支水平井,每一个水平孔相当于一个分支水平井,利用评价水平井产能的方法对其进行定量预测,并结合其在辽河油田应用的数据进行了验证。分析结果表明,水力深穿透射孔适用于产量下降后的解堵增产或水井的解堵增注;水力深穿透射孔在薄油层应用的效果比厚油层效果好,在污染严重的地层比在污染轻微的地层应用效果好。

Application Effect Prediction of Hydraulic Deep Penetration Perforation

To learn the application effect of the hydraulic deep penetration perforating technology,a prediction method for the application effect was formulated.Hydraulic deep penetration perforation was approximately viewed as a group of multi-branch horizontal wells with each horizontal perforation equivalent to a branch horizontal well.The method to assess horizontal well productivity was adopted to conduct a quantitative prediction of the technology and the verification of the technology was performed according to the data of its application in Liaohe Oilfield.The application effect tracking and quantitative analysis show that hydraulic deep penetration perforation is suitable for unblocking yield increase after yield reduction or unblocking augmented injection in horizontal well.The application effect of hydraulic deep penetration perforation is better in thin oil layer than in thick oil layer and it is better in seriously polluted formation than in slightly polluted formation.