CAD to GIS Spatial Conversion and Digitization

Solution for Accurate CAD-to-GIS Data Integration

Unistal provides accurate CAD-to-GIS conversion and digitization services, transforming engineering drawings into GIS-ready spatial data. Our solutions include automated data extraction, geo-referencing, topology correction, and quality validation. We create structured geo-databases, integrate legacy designs, and ensure seamless mapping of pipelines, infrastructure, and utilities. Field surveys and GPS validation enhance precision, enabling reliable GIS deployment. This empowers organizations to visualize, manage, and analyze spatial data efficiently, streamlining engineering, planning, and operational workflows.

CAD to GIS Spatial Data Conversion
  • Design and build a comprehensive geo-database
  • Develop custom GIS migration tools
  • Automate GIS mapping from CAD data
  • Create and load data models (e.g., PODS-based)

Onshore Integrated Pipeline System

We leverage spatial engineering to support the oil & gas industry: converting legacy CAD to GIS for integrated pipeline visualisation and smarter decision-making. This includes gathering network planning, environmental analysis, and real-time collaboration for upstream and mid‑stream operations.

Engineering Knowledge Management

Our workflow enables you to migrate engineering data (pipes, wells, manifolds, stations) into a central knowledge base. We ensure your CAD info is transformed into a geospatial context, allowing for enhanced operational visibility across your organization.


Data Processing & Quality
  • Automatically extract, clean, and georeference alignment sheets
  • Use automated tools to digitize wells, pipelines, roads, and other infrastructure
  • Perform QC/QA: correct geometry, layer attribution, and topological consistency

Survey & Validation

We validate the digitized spatial data via field survey with GPS/DGPS and total station technology, ensuring alignment with the master dataset. After field data is captured, it’s merged, reviewed, and overlaid for accuracy.


Delivery & Handover
  • Deliverables in standard CAD formats (.DWG)
  • Final GIS data is handed over as a structured geodatabase
  • Complete support for deployment, documentation, and training