新疆石油地质

›› 2019, Vol. 40 ›› Issue (6): 1-1.doi: 10.7657/XJPG20190615

• 论文 •    

致密油多段压裂水平井产能预测方法

刘文锋，张旭阳，张小栓，何斌，顾明翔   

  1. (中国石油 新疆油田分公司 百口泉采油厂,新疆 克拉玛依 834000)
  • 出版日期:2019-12-01 发布日期:2019-12-01

A Practical Method to Predict Productivity of Multistage Fractured Horizontal Well in Tight Oil Reservoirs

LIU Wenfeng, ZHANG Xuyang, ZHANG Xiaoshuan, HE Bing, GU Mingxiang   

  1. (Baikouquan Oil Production Plant, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China)
  • Online:2019-12-01 Published:2019-12-01

PDF

343

摘要： 针对玛湖致密油田多段压裂水平井产能预测中存在误差大的问题，调研了国内外研究现状和针对性解决措施，认为产能预测误差大的原因在于储集层非均质性强，使用公式法预测水平井产能难以排除储集层横向非均质的影响。利用增产倍数法建立了致密油水平井产能预测流程，首先建立直井产能与地质参数的相关性，然后建立水平井增产倍数（水平井产能除以直井产能）与地质参数的相关性，最后预测水平井产能的平面分布特征。经新井产量验证，新方法预测精度比类比法和公式法高。

Abstract: To solve the problem of the large errors in multistage fractured horizontal well productivity prediction in Mahu tight oilfield, the authors investigate the research status and countermeasures at home and abroad, conclude that the reason leading to large errors is the strong reservoir heterogeneity and it is difficult to solve the horizontal heterogeneity problem by using the formula method to predict horizontal well productivity. A tight oil productivity prediction procedure is established for horizontal wells by using stimulation ratio method. Firstly, the correlation between vertical well productivity and geological parameters is established and then the correlation between the stimulation ratio of horizontal well (horizontal well productivity divided by vertical well productivity) and geological parameters, finally the planar distribution of horizontal well productivity can be predicted. The actual production from newly-drilled wells proves that the accuracy of the new prediction method is higher than those of analogy and formula methods.Keywords:

中图分类号: