三种强化射孔方法的比较  

COMPARISON OF THREE REINFORCE PERFORATING METHODS

作　　者：刘成[1] 胡绪军 劳胜华 

机构地区：[1]吐哈油田公司研究院

出　　处：《吐哈油气》2000年第4期58-62,100-101,共7页Tuha Oil & Gas

摘　　要：常规射孔完井最大的缺陷在于无法克服成孔时产生的压实损害,近几年开发出一些强化射孔的新方法,在突破射孔压实带方面取得了比较好的效果,复合射孔压裂技术、氮气正压射孔技术、超压酸处理-TCP联作技术就是三种典型的方法,它们共有的特点是,将射孔工艺与近井筒处理工艺有机结合起来,在打开孔眼的同时,即对产层进行改造,有效提高了近井地带的导流能力。这三种强化射孔方法有许多相似之处,但在作用机理、工艺技术上存有一定差异,施工效果也不尽相同,通过对比分析,有助于正确认识三种方法的优、缺点,准确把握各项敏感参数选值。具体施工中应针对施工井的地质特点、井况优选出适宜的方法,并且处理好改造效果、经济投入和对套管损害程度三者间的关系,才能取得好的效果。The most weakness in conventional perforating completion is that it can't overcome the compaction damage caused by perforating. The new reinforce perforating methods developed recently have been achieved good results, such as composite perforating and fracturing technology, nitrogen overbalance perforating technology and ultra - fracture acidizing (TCP) combination technology. Their common characteristics are combined the perforating process and near well zone treatment together, reformed the formation while perforating and improved the diversion capability in the near well - bore zone. The three methods have many same functions, but some certain differences are existed in the action mechanism and the process technical. So the results are not same completely. With comparison and analysis, it will be helpful to understand the advantages and weakness and exactly use all sensitivity parameters. The good results are depended on the method selected based on the geological characteristics of well conditions, the modification, the investment and the degree of case damaged.

关 键 词：射孔 方法 解堵 比较 

分 类 号：TE257[石油与天然气工程—油气井工程]