Integrated Drilling method of Chimney Inspection and Maintenance and associated arrangement of drilling String

摘要

A spout drilling method includes the steps of cutting the chimney with air flow1. Nozzle drilling, including a drilling device installed on the surface, and an empty drilling chain from the surface includes multiple empty drilling pipes installedTogether, it diffuses down through a pre drilled test hole. 1. Cut the chimney with so installed on the top of drilling chain with a steep head: stop cutting process; 1. Laying cables to the hollow drilling chain at the bottom of the chimney: installing an inspection device at the bottom of the cable chimney to extend through the hollow drilling chain;1. The inspection device includes a control device for receiving data from the inspection device: operating the inspection device to check the side wall under the place where it cuts the beetle head; transmitting data from the inspection device to an inspection station; And determine if maintenance is required on the side wall.