Brownfield Engineering & Redline-to-CAD Services
Engineering documentation and design support for modifications, tie-ins, and upgrades to existing operating plants and industrial facilities across Saudi Arabia.
SLETEC Engineering specialises in brownfield engineering services for operating plants across Saudi Arabia. Brownfield projects are inherently more complex than greenfield — engineers must work within the constraints of existing equipment, piping, structural systems, and operational boundaries while producing accurate modification documentation that the construction and operations teams can trust. SLETEC brings the methodical approach that brownfield work demands.
Our brownfield engineering capability covers redline incorporation to update existing CAD drawings, site survey and measurement for as-built baseline establishment, modification engineering across mechanical, piping, structural, and civil disciplines, tie-in point design and isolation boundary identification, and MoC (Management of Change) drawing package preparation. We coordinate modification drawings with existing document sets to ensure inter-discipline consistency and avoid clashes with unmodified systems.
SLETEC has particular experience with redline-to-CAD services — converting field redline markup drawings from construction and operations teams into updated, revision-stamped CAD drawings that accurately reflect the as-built plant condition. This is a critical but frequently backlogged activity on operating sites, and our dedicated team processes redline packages systematically to keep plant documentation current and reliable for future modification planning.
Engineering documentation prepared with reference to API, ASME, AISC, AWS, ISO, Saudi Aramco, SABIC and client project specifications where applicable.
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Why Choose SLETEC
Engineers trained in the constraints and risks of brownfield work — including tie-in isolation, operating plant safety, and modification document accuracy.
Dedicated redline-to-CAD processing team that handles large redline backlogs systematically without losing revision control integrity.
Site survey capability for baseline establishment where existing documentation is incomplete or absent.
MoC drawing package preparation experience aligned with Saudi Aramco and SABIC change management procedures.
Multi-discipline brownfield capability — piping, structural, mechanical, and civil modification drawings from a single coordinated team.
Frequently Asked Questions
What is brownfield engineering and why is it different from greenfield projects?
Brownfield engineering involves designing modifications, additions, or upgrades to existing operating facilities — as opposed to greenfield engineering which starts with a clean site. Brownfield projects require engineers to work within constraints imposed by existing structures, process systems, and equipment layouts, and to produce documentation that accurately reflects as-installed conditions before and after the modification.
What brownfield engineering services does SLETEC offer in Saudi Arabia?
SLETEC offers redline incorporation to update existing CAD drawings with field changes, site survey and as-built drawing preparation, modification design — structural, piping, mechanical, and civil, tie-in point identification and design, MoC (Management of Change) drawing packages, and brownfield MTO preparation for modification scopes.
How does SLETEC handle projects where existing drawings are incomplete or missing?
Where existing drawings are incomplete or unavailable, SLETEC engineers perform site surveys and field measurements to establish the existing plant condition. From this survey data, we produce new as-built drawings as the baseline, then develop modification drawings relative to this verified baseline. This approach ensures the modification design is anchored to actual field conditions rather than potentially incorrect legacy documents.
Can SLETEC prepare MoC drawing packages for brownfield modifications in KSA?
Yes. SLETEC prepares Management of Change (MoC) engineering drawing packages for brownfield modifications, including marked-up existing drawings showing proposed changes, new modification drawings, and a change description document. These packages are formatted to support the client's MoC approval process.
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