油气藏型储气库废弃井封堵技术浅析  

Brief Analysis of the Plug Technology to the Abandoned Well of Oil and Gas Reservoir Typed Gas Storage

作　　者：李国韬[1] 金根泰 

机构地区：[1]大港油田公司石油工程研究院,天津300280 [2]中石油钻井工程技术研究院,北京102299

出　　处：《油气井测试》2017年第6期50-51,55,共3页Well Testing

摘　　要：利用枯竭或处于开发中后期的油气藏改建成地下储气库时,对原油气藏上的老井进行有效封堵是关系到储气库安全的关键因素之一。针对油气藏型储气库废弃井封堵中存在的井筒状况复杂、地层压力低、漏失严重、非均质性强的难点,从封堵工艺、封堵堵剂、配套工具等方面进行了综合分析,并以大港储气库bs34井为例,对施工工艺进行了论述。经过160余口封堵井的现场实践,表明该封堵工艺适应国内储气库废弃井封堵的实际,封堵堵剂具有注入性强、强度高、封堵效果好的特点。When reconstruct to the underground gas storage by using hydrocarbon reservoirs of dried up or the middle and later development periods,the effective plugging to the old well in oil gas reservoir is one of the key factors related to gas storage security.For the difficulties of the complex borehole conditions,low formation pressure,severe leakage,strong heterogeneity existing in plug to the abandoned well of oil and gas reservoir typed gas storage,comprehensive analysis is completed from plugging technology,plugging agent,supporting tools and so on,and taking bs34 well of the Dagang gas storage as an example,the construction process is discussed.Through field practice of more than 160 plugging Wells,it shows that the plugging technology adapts to the practice of the abandoned well's plugging in domestic gas storage,and plugging agent has characteristics of strong injection,high strength and good sealing effect.

关 键 词：储气库 废弃井 封堵 

分 类 号：TE122[石油与天然气工程—油气勘探]