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Vasco de QuirogaIt was precisely when printing became popular in Europe - which, for the first time in history, permitted the conservation and mass diffusion of ancient Greek, Arab, and Latin writings, a fact that signalled the beginning of the Renaissance - that the Letters of Amerigo Vespucci first appeared. These letters, like a revelation, speak of a novus mundus, a new world of unknown flora, fauna, and men, that contradicts the findings of Ptolemy‘s eminent Cosmography (published in 1478, in Rome), Theophrastus's History of Plants (published in 1498, in Venice), and the hallowed treatises of Aristotle, which were then in fashion.

Schlumberger has taken the lead in the oil and gas service industry by creating a footprint emissions quantification tool that balances the time investment with the accuracy required to assess the carbon footprint of technologies along their lifecycle, in order to draw comparisons and shed the light on less impactful services. As an initiative, this is intended to help with the pressing issue of greenhouse gas (GHG) emissions and how we may contribute to limit the impact of our industry on global warming. Schlumberger's Technology Sustainability Team, with a representation from all divisions, has built a versatile lifecycle carbon emission calculator, integrating different oil and gas use-phase models. This calculator's development has entailed an in-depth understanding of the lifecycle assessment (LCA) framework as per ISO 14040, a detailed bibliography for the selection of the emission factors to be used, as well as a thorough technical understanding of the processes, equipment, and operations to develop the computation modules, and in particular the use phases models. It is intended to be user-friendly and efficient, thus allowing even those who are not sustainability experts, to perform a carbon footprint lifecycle initial assessment of their product line or new services in their development phase. We will present the methodology used, the learnings and the use-phase emissions computed in the context of Schlumberger services’ technology portfolio. A comparison of the carbon emissions on the full lifecycle of a product, computed with this tool versus a third party performed full LCA may also be presented to exemplify the investment return in both cases, and how such a calculator is used to assess a wide portfolio of products and services. The presented tool allows to efficiently assess the "hot spots" on the lifecycle of a product. As the embedded carbon footprint estimate is one of the outcomes of the LCA, it can be put in perspective of the full lifecycle for further action taking. With the overall picture, the output of this tool can be the basis for discussion of opportunities with customers in their way to reduce their footprint.

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