To rapidly develop a secure and low-cost three-dimensional visualisation operating environment for intelligent oilfields, the following method is proposed. The digital map of oilfield, developed using coordinate information, is divided into regular raster units to form raster data. Key and unique attribute information is set for each grid cell to generate a Globally Unique Identifier(GUID). An MD5 code that ensure the uniqueness of the 3D model information is calculated. The association between the Geographic Information System(GIS) and 3D model is established through the raster GUID and 3D model MD5. This enables precise navigation to the corresponding 3D model when the GIS is zoomed to a certain level, based on the current raster information. This approach allows for independent development of an intelligent oilfield 3D visualisation operating environment without reliance on foreign software, resulting in lower development costs. This method of digital integration between the digital map and oilfield 3D models can reduce integration costs, rapidly develop an integrated intelligent digital oilfield environment, and provide robust support for the intelligent integrated management of oilfields.