New type MFC Clean and Scrape Integrated Operation Tool and String Selection (Patent product)

Brief introduction
Casing drift diameter gauge is thin wall and cylinder shape tool which used for inspecting casing internal diameter. Our factory original drift diameter gauge with by pass, not only could circulate through annulus of gauge OD and casing ID, and also form new circulating path through annulus of gauge and guide shoe. This type of drift diameter gauge only could work with New-type MFC Clean & Scrape Integrated Operation Tool to start drift diameter & scrape casing multi-function operation. MFC hydraulic scraper body is not expanded in running well and drift diameter, which could prevent blocking drift diameter gauge by sundries. After cleaning well and verifying casing, drop ball valve from wellhead to shoot scraper blade. Scraping casing wall could be operated as pulling up string tools, solid material could be return out of well by mud direct circulation. Reduce one time of running/pulling up string tools, which could largely improve operation efficiency and lower production cost.

By rotating, pushing down and pulling up string tools to start scraping operation. Meanwhile, circulating port is open, string liquid could not return out of drilling platform when pulling up to scrape casing wall. Start direct well flushing again after scraping, in order to return cement block etc.