水力喷砂割缝新技术的研究与应用  

Research and application of hydraulic sand blast slotting technique.

作　　者：王学宏[1] 单晶[1] 孙迎胜[1] 张曦[1] 于欢[1] 

机构地区：[1]河南油田分公司石油工程技术研究院

出　　处：《石油机械》2003年第7期44-46,7,共3页China Petroleum Machinery

摘　　要：针对河南双河油田厚油层细分改造中传统酸化压裂工艺应用受到限制的状况,开发成功水力喷砂割缝新技术。其特点是:(1)穿透能力强,明显改善井筒围岩的应力分布,提高油层的渗透率;(2)新型割缝工具可带多对喷嘴,一趟管柱割16对缝,且可不动管柱更换井下喷嘴;(3)新型收缩式定位器定位准确快速,定位后可回收紧缩,防止砂卡管柱;(4)施工参数监测系统的应用提高了工艺质量与水平。该项新工艺在5口油井上做了现场试验,工艺成功率100％,有效率80％,累计增油1486t。The acid-fracturing technology is restricted to use in Shuanghe Oilfield in Henan Province owing to possible damage to the interbed layers. Therefore a hydraulic sand blast slotting technology is developed successfully. The characteristics of the new technique lie in (1) high penetrating ability ensures improvement of formation permeability; (2) a few of nozzles are fixed on the slotting tool and they can be removed without pulling out the string; (3) new retractable localizer is exploited to prevent sand sticking and sand plugging of the string; (4) a technological parameters monitoring system is applied. The new technique is used on 5 wells, success rate of the technology is 100%, and the effective rate is 80%.

关 键 词：水力喷砂 割缝工具 割缝技术 现场试验 技术指标 穿透能力 

分 类 号：TE355.5[石油与天然气工程—油气田开发工程]