Research on the Structure Improvement of New Collar and Eye Grinding Shoes

There are about 200 shut-in wells and inefficient wells in Bohai area, which cause a large number of idle assets and seriously affect the production and economic benefits of oilfields. It is one of the effective means to use shut-in wells or low-efficiency wells to arrange adjustment wells by sidetracking. A new type of pilot hole grinding shoe is designed and tested in the field, and the penetration rate is as high as 2m/H, and the application effect is good.