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Petroleum engineers continue to need cost saving and environmentally sustainable products and methods for today's hydraulic fracturing operations. Hydraulic Fracturing Chemicals and Fluid Technology, Second Edition, continues to deliver an easy-to-use manual of fluid formulations to meet specific job needs. Enhanced with more environmental aspects, this reference helps engineers and fluid specialists select and use the appropriate chemicals for any hydraulic fracturing job. New information concerning nanotechnology applications such as wellbore sealant and proppants are added to enhance operations in a sustainable manner while saving on production costs. Other updates include low recovery of fracturing water in shale, surfactants for waterless hydraulic fracturing, and expanded produced water treatment. Rounding out with updated references and patents for easy reference, Hydraulic Fracturing Chemicals and Fluid Technology, Second Edition, gives engineers a critical guide on selecting better products to boost productions while strengthening environmental enhancement and consideration.

Oil field chemicals.

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Fieldworkers’ notebooks are full of sensations and observations in which the subjectivity of the ethnographer seeps through. Not really science. Much closer to life. Yet in classical anthropology they are invisible to the reader. In this book the focus is reversed, turning Anthropology Inside Out as it explores the vibrant backstage life of field notes. What happens when we put them centre stage?Aimed at both curious novice and experienced practitioner, the chapters read as a catalogue of experimental practices teetering on the edge of the tradition: intuitively observational drawings; notes pervaded with paranoia; collective notetaking; crisis-ridden personal confessions; layers of notes in photographs and archives; old flip-flops that trigger memories in mind and body. This exploration of what field notes are, can do and could be, concludes with a constellation of shimmering notes on notes from Michael Taussig, a meta-commentary on anthropologists’ fetishistic relationship with the most personal of professional tools.

fieldwork --- field notes --- methodology

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Symptoms of important diseases have been illustrated with colored photographs which will help in their correct and easy diagnosis..

Field crops --- Diseases and pests.

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Field programmable gate arrays --- Programmable array logic

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Field programmable gate arrays. --- Programmable array logic.