Method for producing G-level high oil-resistant well cement clinker and cement clinker produced by method

The invention discloses a method for producing a G-level high oil-resistant well cement clinker and a cement clinker produced by the method, and particularly relates to a method for producing the G-level high oil-resistant well cement clinker by urban sludge ingredients, and a cement clinker produced by the method. The aim of the invention is achieved by the following processes of adding municipal sludge after utilizing excellent marble, quartz stone, iron powder and clay ingredients with high calcium content, then burning in a kiln and producing the G-level high oil-resistant well cement clinker. Compared with the prior art, not only is the municipal sludge utilized, but also municipal pollution can be reduced to a certain extent; particularly, the yield of a grinding machine can be improved; the artificial labor intensity is reduced; and the production cost can be further reduced.