Wettability behaviour of CO2 at storage conditions

The Significance of Caprock Sealing Integrity for CO2 Storage

To mitigate anthropogenically induced climate change and ocean acidification, net carbon dioxide emissions to the atmosphere must be reduced. One proposed option is underground CO2 disposal. Large-scale injection of CO2 into the Earth's crust requires an understanding of the multiphase flow properties of high-pressure CO2 displacing brine. We present laboratory-scale core flooding experiments designed to measure CO2 endpoint relative permeability for CO2 displacing brine at in situ pressures, salinities, and temperatures. Endpoint drainage CO2 relative permeabilities for liquid and supercritical CO2 were found to be clustered around 0.4 for both the synthetic and natural media studied. These values indicate that relative to CO2, water may not be strongly wetting the solid surface. Based on these results, CO2 injectivity will be reduced and pressure-limited reservoirs will have reduced disposal capacity, though area-limited reservoirs may have increased capacity. Future reservoir-scale modeling efforts should incorporate sensitivity to relative permeability. Assuming applicability of the experimental results to other lithologies and that the majority of reservoirs are pressure limited, geologic carbon sequestration would require approximately twice the number of wells for the same injectivity.

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Relative permeability experiments of carbon dioxide displacing brine and their implications for carbon sequestration.

Carbon dioxide sequestration in saline formations: Part 2—Review of multiphase flow modeling

CO2 Wettability Behavior During CO2 Sequestration in Saline Aquifer -An Experimental Study on Minerals Representing Sandstone and Carbonate

Two Phase Flow Properties of Brine-CO2 Systems in a Carbonate Core: Influence of Wettability on Pc and kr.

Social Networking and Online Collaboration in the Oil and Gas Industry

The Way Ahead has conducted three surveys among young professionals (YPs) to understand preferences between the technical and managerial career ladder. Approximately two-thirds of respondents sought to pursue a management career. It is estimated that one-third ultimately follow the managerial career path. Why do YPs see management as an attractive career? TWA is trying something new in this Forum section and asked select technical and managerial industry leaders for comments on key questions this survey raised. Let’s hear what experienced technical and managerial professionals have to say on this critical subject.

Technical vs. Managerial Careers: What Experienced Professionals Say

According to Michael Kenison, technical solutions must have the proper blend of creativity and practicality and ideas should meet a legitimate need. Kenison is a project manager at Schlumberger and has six patents to his credit with six more in the pipeline. He received his first patent at the age of 29. He is just one of the many young achievers in the oil and gas industry. Physics, chemistry, and mathematics are overflowing with people who have exemplified the meaning of prodigy and their names are found in numerous high school and college textbooks. Wikipedia pays respect to these names. Units are named after them. Newborn elements derive their name from these people, not to mention bagel houses. But we rarely take a look in our own backyard. Given that products and services in the oil and gas industry are highly specialized and that young people are given little responsibility in their initial career years, crossing the rift can be tricky. Instead of being inspired by these examples, sometimes young people feel constrained by the long learning curve in the industry. But with the “easy oil” era over, this is a time for innovation and young professionals can be a source of refreshing insight, unique perspectives, and new ideas.

Carlos Chalbaud

Papers

Two Phase Flow Properties of Brine-CO2 Systems in a Carbonate Core: Influence of Wettability on Pc and kr.

Social Networking and Online Collaboration in the Oil and Gas Industry

Technical vs. Managerial Careers: What Experienced Professionals Say

Youth, Depth, and Innovation in the Oil and Gas Industry