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Subsurface Environment Featured Image

Subsurface Environment

This topic addresses the fundamental and general conditions of the subsurface environment. The nature of water, pressure, geothermal gradient and fluid dynamics is discussed and its implications on oil and gas generation. Also presented is the effects of overpressure and under pressured environments as it relates to drilling and production.

Grand Challenges for the Oil and Gas Industry for the Next Decade and Beyond Featured Image

Grand Challenges for the Oil and Gas Industry for the Next Decade and Beyond

We arrived at a list of five Grand Challenges: Carbon Capture, Utilization, and Storage, Geothermal, Net-Zero Operations, Improved Recovery from Tight / Shale Resources, and Digital Transformation. In addition, we identified a sixth “bonus” challenge— Education and Advocacy, since we believe that more effective engagement with thought leaders outside our industry will be key to advancing and deploying new technologies in these areas.

Repurposing Oil and Gas Wells for Geothermal - The Well Integrity Perspective Featured Image

Repurposing Oil and Gas Wells for Geothermal - The Well Integrity Perspective

The number of O&G wells at the end of their economic life continues to grow. Likewise, the costs continue to increase for their decommissioning & abandonment. Many benefits would accrue if these wells could be used as a source of geothermal energy, and interest is growing in the feasibility of re-purposing these wells to geothermal. A major consideration in new geothermal projects is a huge up-front capex requirements. In general, a quarter of the costs go towards drilling new wells and one-third towards completions. Thus re-purposing these wells could result in significant cost savings. However, many other factors must be considered, such as local energy demand, potential market, existing infrastructure, and technical challenges. A conversion strategy for the existing wells is discussed in terms of the wellbore integrity requirements and steps to ensure hydrocarbon containment during the heat extraction process. Potential well-integrity challenges in the inspection and preparation of these wells will be discussed in this presentation.

Upcoming Produced Water Treatment Challenges Related to Carbon Capture & Storage and Geothermal Featured Image

Upcoming Produced Water Treatment Challenges Related to Carbon Capture & Storage and Geothermal

New CCS and geothermal projects will require novel produced water treatment technologies to process HP/HT saline produced water streams. These can contain components such as methane and CO2 in addition to the contaminants present in produced waters from oil and gas producing fields. Some of the existing produced water technologies are suitable and qualified for these applications, while in some areas the design envelope needs to be enlarged, or new technologies are needed. Various aspects around these topics will be discussed. All content contained within this webinar is copyrighted by Steven Tulloch and its use and/or reproduction outside the portal requires express permission from Steven Tulloch.