一种提高支撑剂在大厚储层中有效铺置的方法技术

本发明专利技术涉及一种提高支撑剂在大厚储层中有效铺置的方法，主要是根据大厚储层在纵向上物性的差异，在对大厚储层射孔时，考虑到压裂过程中水力裂缝在纵向上延伸能够沟通整个储层以及支撑剂输送过程中支撑剂向裂缝底部沉降对支撑剂铺置的影响，对大厚储层进行集中射孔；在压裂过程中使用不同密度支撑剂组合的加砂技术，利用不同密度支撑剂沉降速度不同以及不同密度携砂液之间的对流运动来调节支撑剂在水力裂缝中的铺置，使支撑剂在压裂层段纵向上根据储层物性对支撑裂缝导流能力的不同要求而有效铺置。利用该方法可以克服现有技术的不足，提高储层的支撑效率，提高储层压裂改造的增产效果。

Method for improving effective placement of proppant in large thick reservoir

The invention relates to a method for improving the proppant in thick reservoirs effectively laid, is mainly based on the thick reservoir in longitudinal properties of large differences in thick reservoir perforation, considering the hydraulic fracturing process of crack extending in the longitudinal direction to communicate over the reservoir and proppant transport in the process of proppant to crack at the bottom of settlement on proppant laying, centralized perforation on the thick reservoir; sand technology using different density proppant combination in the process of fracturing, proppant settling velocity with different density and different density of different articles convection sand fluid between the regulating agent in hydraulic support cracks in the laying, the supporting agent in fracturing layers in vertical reservoir according to the different requirements for the support of fracture conductivity and effective laying. The method can overcome the shortcomings of the prior art, improve the supporting efficiency of the reservoir and improve the yield increasing effect of the reservoir fracturing transformation.

【技术实现步骤摘要】

【技术保护点】
１．一种提高支撑剂在大厚储层中有效铺置的方法，包括以下步骤：（１）分析大厚储层纵向上物性分布；（２）根据物性分析结果，对大厚储层进行集中射孔；（３）根据物性分析结果，对大厚储层应用不同密度支撑剂组合加砂技术。

【技术特征摘要】

【专利技术属性】
技术研发人员：郭建春，毕义泉，卢聪，赵志红，
申请(专利权)人：西南石油大学，
类型：发明
国别省市：90