Graphite is a stack of carbon layers where carbon atoms form hexagons in a honeycomb structure. Graphene on the other hand is a single atom thick layer which offers unique physical, chemical and biological properties compared to graphite. Recycling graphite waste and converting it into graphene or graphène oxide may offer many economic, environmental and health benefits, and may also be used in many applications. Graphite has been used widely in iron-steel, chemical, and nuclear industries for electrical, mechanical and other applications (e.g., metallurgy, pencil, coatings, lubricants and paint), and especially, most of the mold materials of drilling are made of graphite. The major goal of this study is to produce recycled graphène oxide from graphite waste recovered from the drilling mold by using Hummer's method. In this study, graphite-based tailings recovered from drilling mold were collected from local waste collection companies after the sieving and cleaning processes, the resulting graphite is exfoliated in a single layer using a chemical exfoliation process. We herein present a simple, fast, efficient and environmentally friendly technique to prepare graphene oxide (GO) from graphite residues recovered from the drilling mold by using Hummer's method. Complete characterizations of the properties of GO films have been performed. SEM and Raman analyzes showed that the GO sheets prepared in this study had a double-layered and multilamellar structure. X-ray diffraction (XRD) was chosen to measure the crystal structure of our materials. A Fourier transform infrared (FT-IR) spectrum analyzer was used to certify the presence of oxygen-containing functional groups in GO films. The chemical structure of the GO sheet was described in this study. Discussion and references for further research on graphene are provided. [ABSTRACT FROM AUTHOR]