Platform Decommissioning

The decommissioning of a non-producing platform requires expertise in a variety of tactics, as well as diligence in following state and federal regulations. Thompson Engineering regularly works with ExxonMobil to remove non-producing oil and gas platforms from the Gulf of Mexico, assisting with safety and environmental assessments. This entails inspecting for hazardous materials including:

Naturally Occurring Radioactive Material (NORM)

Thompson surveys platform product piping before it is dismantled. If NORM levels exceed limits, Thompson evaluates disposal requirements for contaminated materials and coordinates segregation and proper disposal.

Lead-Based Paint (LBP)

Thompson locates and identifies lead-based paint on interior and exterior surfaces of the platform structures using an X-Ray Fluorescence (XRF) lead paint analyzer.


Using the National Emission Standards for Hazardous Air Pollutants (NESHAPS) survey, Thompson collects and analyzes friable and non-friable materials and recommends handling of all materials identified with asbestos.

Visual Survey of Regulated Materials

This survey provides an indication of the presence of regulated materials and potential waste streams that must be handled during demolition. Thompson will collect air and waste samples for chemical analysis during decommissioning if needed.

Thompson also issues reports of its findings within a specific timeframe following each platform inspection visit to ensure proper project planning, execution, documentation and reporting, as well as recommendations for safe handling and/or disposal of hazardous materials. All handling and disposal activities are conducted in compliance with ExxonMobil policies and procedures and state and federal regulations.