Martin Crick, SPE, Chief Petroleum Engineer, Tullow OilLooking back through previous editions of this article, I note that, in 2011, I wrote, "there’s a growing tendency in some quarters to use very simple models." That may be true, but there is also a growing tendency among vendors to offer models with more and more features.
Shauna Noonan, SPE, Staff Production Engineer, ConocoPhillipsArtificial-lift reliability is strongly influenced by how well the equipment is selected, designed, and operated for its particular application. The required artificial-lift knowledge is more than simply entering data into a software program or taking one class on the subject.
Simon Chipperfield, SPE, Manager, Special Projects, SantosUnconventional gas is poised to enter its Golden Age and to effect positive global change if it can meet three challenges. Consider the 7 billion people on Earth who use energy each day. Consider the World Health Organization statistic that 3% of all world health issues are related to indoor burning of fossil fuels.
John D. Rogers, SPE, Vice President, Operations, Fusion Reservoir Engineering ServicesResearch-and-development modeling has shown that CO2 can diffuse a small distance into the thick shale caprocks above brine aquifers used for sequestration and cause migration of siderite (iron carbonate), magnesite (magnesium carbonate), calcite, and other precipitates back into the target zone, which is what is wanted for mineral sequestration of CO2.