Date: Tuesday October 6th, 2020
Speaker: Stephen Robinson, CEO & Founder, DarkVision
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Time: 12:00 PM - 1:00 PM
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An advanced solid-state, high-resolution acoustic imaging technology has been extensively used in hydraulically fractured wells to image and quantify perforation erosion. The downhole device captures detailed full-lateral logs of horizontal wells with submillimetric resolution. The continuous 360-degree views captured by the tool has led to the discovery of prolific and unexpected casing integrity issues at depths where plugs were set.
The high-resolution acoustic imaging platform was able to identify and measure the location and severity of casing damage at each plug location. The casing damage varied from minor wall loss to a full breach (100% wall loss). Numerous failure mechanism theories were considered, such as: milling wear, damage due slip design, or turbulent flow created by the plug face.
The slip mark indentation locations for each plug were identified. Utilizing this as a reference point and combined with the engineering drawings of the deployed plugs, the team identified where the damage was occurring with relation to the deployed plug. Phase angle, wall loss severity, length, width, and shape characteristics were noted for each damage location. Hydraulic fracturing program data (pump rates, sand concentrations, pressures, etc.) were also gathered for each stage that exhibited damage at a plug depth.
Using the plug manufacturers dimensional data, the high-resolution three-dimensional data, and the operators hydraulic fracturing program data, the team was then able to narrow down the likely damage mechanism and root cause of the failure. To further test the proposed theories, a set of lab tests were completed. This webinar will describe the process and findings of this investigation.
Stephen Robinson is the CEO & Founder of DarkVision. He’s a serial entrepreneur with a background in Electromechanical Engineering and machine vision. He started an industrial imaging technology company called ClearVision, which developed what became the de-facto standard technology for performing quality control on cardboard boxes, and was ultimately acquired in 2011. Stephen co-founded DarkVision in 2013 with the goal of developing industrial imaging technologies for a new sector, this time for upstream oil and gas. DarkVision is a Canadian-based technology company specifically focused on developing high-resolution acoustic-based imaging solutions for completions optimization, well integrity, and fishing applications with offices in Vancouver, Calgary, and Houston.