Data analysis, material testing, professional advice in the field of geology, geochemistry, drilling for and exploitation of hydrocarbons, technical research in the field of evaluating and quantifying petroleum, gas and deposits; technical monitoring and inspection; (technical) project studies; computer programming; engineering and research in evaluating and quantifying petroleum, gas and deposits; petroleum and drilling engineering; professional advice and planning (unrelated to business management) in the field of drilling: analysis, prospecting, drilling, testing, monitoring and trying out of petroleum and drilling equipment; research in prospecting for, exploiting and analysing all substances on the surface and underground, particularly petroleum, rocks, minerals and natural gas; geological and geochemical measurements and analyses; evaluation and engineering services in the field of geology and geochemistry; measurements at oil wells or in other wells; data programming; all the aforementioned services relating to the following goods: apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, measuring apparatus and instruments, apparatus for measuring physical dimensions, apparatus and instruments for analysing data from oil and natural gas field studies and analysing the identification, evaluation and quantification of petroleum, gas and deposits, monitoring apparatus, works site apparatus and instruments, namely effluent analysers (for gas and liquid contained in works sludge) using gas and/or liquid phase chromatography with or without a mass spectrometer or with or without an optical detection system (tunable laser diode systems, optical cavity ring-down spectroscopy (CRDS) systems), laboratory apparatus and instruments, chromatographs, mass spectrometers, optical detection systems (tunable laser diode systems, optical cavity ring-down spectroscopy (CRDS) systems), dual-spectrum chromatographs andd mass spectrometers, dual-spectrum chromatographs and optical detection systems (tunable laser diode systems, optical cavity ring-down spectroscopy (CRDS) systems), computer programs and software used to process data obtained by analysing the evaluation and quantification of petroleum, gas or deposits