75423332
Jan 26, 1998
Drilling and construction equipment for creating multiple branch wells from a parent well, namely, Casing adapters; Landing and orienting tools for permanent or temporary insertion into a lateral opening to serve as a reference and guide for inserting other tools or equipment; Drilling subs for connecting a branch well to a parent well; Whipstocks and deflection tools, namely, wedge-shaped tools that have angled heads used in casings; Packers, namely, a retrievable plug-like device used to create a pressure seal to restrict a particular region of casings; Installation and retrieval hardware, namely, tools that are lowered into casings to install or to retrieve packers, a retrievable plug-like device, or landing tools, which serve as a reference and guide for inserting other tools or equipments
Machinery