复合压裂技术在高应力地层的应用  

Application of Multiplex Fracturing Technology in High Stress Zone

作　　者：刘兆江 王宇宾 

机构地区：[1]吐哈石油指挥部油气合作开发公司,新疆鄯善838202 [2]吐哈石油钻采工艺研究院,新疆鄯善838202

出　　处：《断块油气田》2006年第6期43-45,共3页Fault-Block Oil & Gas Field

摘　　要：勒10块J2x储层具有岩性致密、物性差、自然产能低、地应力高的特点。压裂施工时压力较高,成功率低,严重影响了压裂效果。结合储层特点及前期压裂情况,应用了满足高应力地层改造的复合压裂技术。主要做法是:压裂前对地层进行酸化预处理或实施高能气体压裂,以降低压裂时的地层破裂压力,然后进行正式压裂施工。现场应用表明,复合压裂的施工成功率较高,增产效果明显。The J2x pay zone of Block Le 10 is characterized by the compacted rocks,poor bedrock,low productivity and high stress.The pressure of fracturing is high especially.The chance of success is uncertain and the increased productivity is little.Combined with the reservoir character and the early fracture,the multiplex fracturing technology fitting for the high stress zone is applied.That is that the hydraulic fracturing is carried out after acidizing or high energy gas fracturing to reduce the cracking pressure of zone.Application of multiplex fracturing technology on the spot increases the successful chance and the productivity of the single well,and gets obvious economic profits.

关 键 词：勒10块 岩性致密 高应力地层 复合压裂 应用 

分 类 号：TE357.1[石油与天然气工程—油气田开发工程]