CAD & Drafting Services for Oil & Gas

Oil and gas projects carry strict documentation and traceability requirements across piping, mechanical equipment and structural steelwork, often coordinated through a shared plant model that has to remain consistent across the life of a facility, sometimes across decades of operation and multiple rounds of expansion.

We provide drafting support across these disciplines, working within the drawing standards, revision control and documentation formats an operator or EPC project requires.

Piping documentation in particular depends on absolute consistency between the isometric drawings, the plant model and the line list — a mismatch between these three sources is a common and serious source of fabrication and commissioning error, and we treat cross-checking between them as a core part of the deliverable, not an optional extra.

Structural steel work in this sector is frequently governed by process safety and fire protection requirements that shape connection design and member spacing in ways a general commercial structure wouldn't need to consider, and detailing has to reflect that context accurately.

Legacy facility documentation is a recurring need, since older plants often have drawing archives spanning several different drafting standards and revision practices accumulated over the facility's operating life, and consolidating that into a single, trustworthy current-state record is a substantial but valuable undertaking.

India's oil and gas sector spans upstream exploration and production facilities, midstream pipeline infrastructure, and downstream refining and processing plants, each with its own typical documentation conventions and each frequently run by an EPC contractor whose specific drawing standard needs to be followed precisely rather than substituted with a generic approach.

Documentation traceability in this sector often has to satisfy not just the immediate design and construction team, but a much longer chain of future maintenance, inspection and regulatory review — which is a strong argument for building documentation right the first time rather than treating drafting as a purely transactional deliverable.

Piping and structural drafting for oil and gas facilities is also unusually sensitive to small dimensional errors, given how tightly equipment, piping and structural steel are packed together in a typical process unit — a clash discovered on site during construction is often far more disruptive to fix in this environment than in a more open commercial building, since access for rework is frequently limited by surrounding equipment already in place.

Facility expansion and modification projects, common as production requirements evolve over a plant's operating life, depend heavily on an accurate understanding of existing conditions before new design work can proceed safely — which is why reconciling as-built condition against the existing plant model or drawings is so often the necessary first step on this kind of project, not an optional add-on.