Abstract: The DXX68C29 [KG*4]well is located in Xin 68 block three East high position of a structure of a key well. The well didnt normal product because of serious sanding in 27 July 2011, influenced the capacity up to 15.4 m³. In view of the well casing channeling long well section, the hole diameter change after the casing sealing channeling and the contradiction of large of inclination change, the 40 arm caliper was used on the well casing diameter analysis, selected suitable control sand technology. The method solved the contradiction of the well which could not be normal production because of the sanding. The well had worked 170 days continuously and had produced oil 1 179.9 m³ accumulatively after opened in 4 August 2011. A new train of thought was provided to solve similar well control sand. The 40 arm caliper structure, measuring principle and technical index were introduced. A new idea and technical were provided to solve the problem of unconsolidated reservoir control sand, and analyzed of the field application of the instrument effect through field application.

Key words: 40 Arm caliper test technology, Anti-circulating gravel pack, Sand craft, DXX68C29 well

摘要： DXX68C29井是位于辛68块东三段构造高部位的一口关键井，2011年7月27日因出砂严重而停产，影响产能高达15.4 m3。针对该井套窜井段长、封窜后套管内通径有所变化、井斜角变化大的矛盾，应用40臂井径仪测试结果对该井套管内通径的变化进行分析后选择合适的防砂工艺防砂后，较好地解决了该井因出砂不能正常生产的矛盾，并见到了明显效果，该井2011年8月4日开井,已连续生产170 d，累计增油1 179.9 m3。该技术在DXX68C29井的成功实践为解决同类井的防砂提供了一种新的思路。介绍了40臂井径仪结构、测试原理、技术指标，并通过现场实例应用，分析了该仪器现场应用效果，为解决油藏油井防砂提供了一种新的思路和技术支持。

关键词: ４０臂井径仪测试技术 , 反循环砾石充填 , 防砂工艺 , ＤＸＸ６８Ｃ２９井