首页>
外国专利>
SLIDING SLEEVE VALVE STAGE CEMENTING TOOL AND METHOD
SLIDING SLEEVE VALVE STAGE CEMENTING TOOL AND METHOD
展开▼
机译:滑套阀级固井工具和方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
A downhole tool provided within a casing string for use in cement staging operations. The tool includes a sleeve in the tool that selectively slides downward under pressure to expose ports formed in a side wall of the tool. Also, an annulus through the tool is selectively blocked so that cement in the casing string flows radially outward through the ports and into an annulus between the tool and a wellbore. An inflatable packer is included that is integral to the body of the tool and is inflated with a fluid that is pushed into the packer as the sleeve slides downward. An optional expanding agent can be included in the packer that is a metal oxide and is activated with the addition of water.
展开▼