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本文详细介绍了配置在挠性油管(CT)上可膨胀金属套管内部补贴技术的开发与应用。在7in套管中,应用套管内部补贴技术延长了油井的寿命,减少了修井次数。可膨胀金属套管补贴技术可应用于各种情况下的套管局部修补(如堵水、补漏及腐蚀管线的补贴)。这种补贴缩径最小,可保证未来修井通道的畅通,对油田生产或注水的影响也最小。
This article details the development and application of the internal subsidy technology for inflatable metal sleeves configured on flexible tubing (CT). In the 7in casing, the application of internal casing technology to extend the life of the well, reducing the number of workover. Expandable metal casing subsidy technology can be used in various cases of local repair casing (such as water, trap and corrosion pipeline subsidies). This kind of subsidy has the smallest diameter, which can ensure the smooth flow of workover channel in the future and has the least impact on oilfield production or water injection.