连续油管喷砂射孔环空压裂工艺在大牛地气田的应用  

APPLICATION OF COILED TUBING ANNULAR FRACTURING SAND BLASTING PERFORATION TECHNOLOGY IN THE DANIUDI GAS FIELD

作　　者：靳宝军[1,2] 邢景宝[2] 郑锋辉[2] 杨安林[2] 

机构地区：[1]中国石油大学·华东 [2]中国石化华北分公司

出　　处：《钻采工艺》2011年第2期39-41,114-115,共3页Drilling & Production Technology

基　　金：国家科技重大专项专题“大牛地气田钻完井技术及储层压裂技术”(编号:2008ZX050450307)

摘　　要：随着大牛地气田水平井增产的需要,大牛地气田多、薄层的动用,压裂两层以上的工作量较大,加之加砂规模较大,对机械分压工具的要求较高,但在现场存在部分分压工具分压完毕后未能打开下层排液通道而造成压裂后的下层无法排液和试气,并且部分分层压裂工具无法正常取出,须大修作业等。为此,提出根据大牛地气田实际情况,使用连续油管采用专用的喷砂射孔工具对压裂层段进行喷砂射孔,而后进行环空压裂,压裂后进行填砂隔离已压裂层段,上提连续油管到第二压裂段进行同样的操作直至全部压开设计层段,并在现场成功进行了2口井6层的连续油管喷砂射孔环空压裂的探索应用,这对解决大牛地气田多层段的有效改造提供了新的技术手段。With the need of increase production for horizontal wells in Daniudi gas field,sand fracturing technology was used on a large scale,and the requirement to mechanical partial pressure tool was higher.At present,some partial pressure tool couldn't normally take off in fracturing operation.So,based on the actual situation of Daniudi gas field,the coiled tubing was used for abrasive perforating in fracturing layers,then carried through the annular fracturing,and the fractured section was separated by sand filling,coiled tubing was pulled up to the second fractured interval,the same operation was carried out until man-made design layers.The technology was used successfully in 2 wells of Daniudi gas field and provided effective fracturing means.

关 键 词：连续油管 连续油管压裂 喷砂射孔 鄂尔多斯盆地 大牛地气田 

分 类 号：TE357[石油与天然气工程—油气田开发工程]