DJ-210型大井眼卡瓦锚定式防砂充填工具的研制  

Model DJ-210 slip-anchored sand control packing tool for large boreholes

作　　者：陈刚[1] 吴琼[1] 李鹏[1] 魏芳[1] 孙德旭[1] 高雪峰[1] 张锡娟[1] 

机构地区：[1]胜利油田分公司采油工艺研究院

出　　处：《石油机械》2010年第3期38-40,91,共3页China Petroleum Machinery

摘　　要：针对目前在疏松砂岩油藏采用三开裸眼充填和244.5mm套管防砂完井工艺受工具的限制,而采用皮碗工具悬挂滤砂管防砂及两步法充填防砂完井,施工周期长,作业成本高,且防砂效果难以保证的状况,研制了DJ-210型大井眼卡瓦锚定式防砂充填工具。该工具配以相应的防砂管柱可实现地层改造,起到既防砂又增油的双重效果。该工具采用组合式胶筒密封及双向卡瓦锚定,使其封隔压力高,悬挂能力强,确保了防砂施工的成功率,实现了地层填砂、环空填充一体化工序,较好地解决了三开裸眼悬挂充填防砂及244.5mm套管射孔出砂井地层改造及环空充填防砂完井的防砂难题。现场8口井的应用表明,使用该工具实现了防砂后不减产甚至增产的良好防砂效果。A kind of sand control packing tool,Model DJ-210 slip-anchored packing tool,was developed for well completion of large boreholes in loose sand reservoir.The tool adopts combined packer rubber sealing and bi-directional anchoring to make its packing pressure high and suspension force strong,ensuring the success rate of sand control construction,achieving an integrated process of formation sand filling and annular packing and solving the sand control problem of the third opening naked hole suspension packing,formation reconstruction and annular packing completion forφ244.5 mm casing perforation sandy wells.The field application of the tool to 8 wells shows that it achieves the desirable sand control effect.

关 键 词：大井眼 卡瓦锚定 防砂充填 地层改造 

分 类 号：TE358.1[石油与天然气工程—油气田开发工程]