The precipitation and deposition of solids are a major challenge in the production of oil and gas. Flow assurance solids are formed because of unavoidable changes in temperature, pressure and composition of the oil-gas-water flowstream, from reservoir conditions to processing conditions. The advent of subsea production and the increased exploitation of heavy crudes have made flow assurance issues dominant in ensuring efficient and safe exploitation of hydrocarbon assets. Five troublesome flow assurance solids are described in the book: asphaltene, paraffin wax, natural gas hydrate, naphthenate and inorganic scale. These big-five solids are presented in stand-alone chapters. Each chapter is designed to be readable without clutter. Derivations of equations and descriptions of supporting details are given in several appendices. The book is intended for professional engineers and natural scientist working in E&P companies, engineering companies, service companies and specialized companies. An understanding of the big-five solids is required throughout the lifetime of oil and gas assets, from early development to abandonment. The technical, safety and environmental risks associated with deposition problems in near-wellbore formations, production tubing, wellhead equipment, flowlines and processing facilities, are relevant for decisions in the oil and gas industry and in outside regulatory and financial entities.
The precipitation and deposition of solids are a major challenge in the production of oil and gas. Flow assurance solids are formed because of unavoidable changes in temperature, pressure and composition of the oil-gas-water flowstream, from reservoir conditions to processing conditions. The advent of subsea production and the increased exploitation of heavy crudes have made flow assurance issues dominant in ensuring efficient and safe exploitation of hydrocarbon assets. Five troublesome flow assurance solids are described in the book: asphaltene, paraffin wax, natural gas hydrate, naphthenate and inorganic scale. These big-five solids are presented in stand-alone chapters. Each chapter is designed to be readable without clutter. Derivations of equations and descriptions of supporting details are given in several appendices. The book is intended for professional engineers and natural scientist working in E&P companies, engineering companies, service companies and specialized companies. An understanding of the big-five solids is required throughout the lifetime of oil and gas assets, from early development to abandonment. The technical, safety and environmental risks associated with deposition problems in near-wellbore formations, production tubing, wellhead equipment, flowlines and processing facilities, are relevant for decisions in the oil and gas industry and in outside regulatory and financial entities.
The precipitation of solids is an elusive problem in the production of oil and gas. Flow assurance is the industrial term used to describe the phenomena of precipitation and deposition of solids and to offer technical solutions. A multitude of mechanisms are responsible for precipitation and deposition of solids in oil and gas production. This book deals with the basic phenomena regarding the occurrence of obstructions by solids. It futher discusses the four most common solids in gas and oil: aspahltene, paraffin wax, gas hydrate and inorganic solids, thus providing a guide on their occurrence and prevention. The book combines all relevant information on solids for the oil and gas industry in one text with detailed appendices, tables and diagrams for more specialist information.
The precipitation and deposition of solids are a major challenge in the production of oil and gas. Flow assurance solids are formed because of unavoidable changes in temperature, pressure and composition of the oil-gas-water flowstream, from reservoir conditions to processing conditions. The advent of subsea production and the increased exploitation of heavy crudes have made flow assurance issues dominant in ensuring efficient and safe exploitation of hydrocarbon assets. Five troublesome flow assurance solids are described in the book: asphaltene, paraffin wax, natural gas hydrate, naphthenate and inorganic scale. These big-five solids are presented in stand-alone chapters. Each chapter is designed to be readable without clutter. Derivations of equations and descriptions of supporting details are given in several appendices. The book is intended for professional engineers and natural scientist working in E&P companies, engineering companies, service companies and specialized companies. An understanding of the big-five solids is required throughout the lifetime of oil and gas assets, from early development to abandonment. The technical, safety and environmental risks associated with deposition problems in near-wellbore formations, production tubing, wellhead equipment, flowlines and processing facilities, are relevant for decisions in the oil and gas industry and in outside regulatory and financial entities.
To a faithful friend, straight are the roads and short."—Odin, from the Hávamál (c. 1000) Friendship was the most important social bond in Iceland and Norway during the Viking Age and the early Middle Ages. Far more significantly than kinship ties, it defined relations between chieftains, and between chieftains and householders. In Viking Friendship, Jón Viðar Sigurðsson explores the various ways in which friendship tied Icelandic and Norwegian societies together, its role in power struggles and ending conflicts, and how it shaped religious beliefs and practices both before and after the introduction of Christianity. Drawing on a wide range of Icelandic sagas and other sources, Sigurðsson details how loyalties between friends were established and maintained. The key elements of Viking friendship, he shows, were protection and generosity, which was most often expressed through gift giving and feasting. In a society without institutions that could guarantee support and security, these were crucial means of structuring mutual assistance. As a political force, friendship was essential in the decentralized Free State period in Iceland’s history (from its settlement about 800 until it came under Norwegian control in the years 1262–1264) as local chieftains vied for power and peace. In Norway, where authority was more centralized, kings attempted to use friendship to secure the loyalty of their subjects. The strong reciprocal demands of Viking friendship also informed the relationship that individuals had both with the Old Norse gods and, after 1000, with Christianity’s God and saints. Addressing such other aspects as the possibility of friendship between women and the relationship between friendship and kinship, Sigurðsson concludes by tracing the decline of friendship as the fundamental social bond in Iceland as a consequence of Norwegian rule.
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