Doull Site Assessments Ltd. (DSA) was the industry leader in Well Integrity Services for Gas Migration (GM) and Surface Casing Vent Flow (SCVF). After being acquired in 2017, DSA became a subsidiary of Capstone. The merger of the companies ensured Capstone could offer DSA’s class-leading well integrity methodology and technology for identifying, quantifying, sampling and monitoring GM and SCVF with every abandonment project. As of July 1, 2020 DSA has amalgamated and now operates as the Well Integrity division of Capstone’s suite of services.

Besides having Well Integrity Services in-house to ensure the most accurate and precise data is used for project planning and abandonment programming and execution. We continue to offer the same great service as always to our existing client base. Core service offerings include VentMeterâ„¢ real-time surface casing data monitoring, GM & SCVF testing and sampling, Directive 013, 020, 079 & 087 services, and more.

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Please click the VentMeter logo to be redirected to the client login for access to current and historical VentMeter data.