Wellsite Remediation in Crossfield, Alberta | In-Situ Chemical Oxidation (ISCO) Case Study

Case Studies

/

Wellsite Remediation in Crossfield, Alberta | In-Situ Chemical Oxidation

Project Details:

Location:

Wellsite - Crossfield, Alberta

Site:

Oil and Gas Site (Flare Pit)

Date:

2009

to

2017

Present

Contaminant of Concern:

BTEX, C6-C16

Impacted Media and Volume:

80,000 m3 impacted soil and groundwater

Project Tasks:

Detailed site assessment, Hydrogeological characterization, Remedial planning, Detail design, Procurement, Blending and Field applications

View Project Images & Details →

The Problem:

Former flare pit area overlying shallow fractured bedrock. Condensate (BTEX) contamination dissolved in groundwater covering 21,000 m2.

The Approach:

Conduct detailed geological/hydrogeological investigation to identify fracture pathways and contaminate transport.

In-situ chemical oxidation (ISCO) program based on 15-meter injection radius of influence. Establish health and safety protocol and site logistics for handling oxidizer.

Installed 90 injection wells and injected over 100,000 litres of blended 17% EHP (enhanced hydrogen peroxide) oxidant. Blending is site specific following TRIUM’s ChemOx® process.

‍

The Results:

Plume area reduction by >90%
Highly cost effective compared to traditional remedial options, with minimal carbon footprint
Excellent reductions noted with injection distributions exceeding planned performance
Follow-up program for completion of impacts in source area

Contact Trium Environmental