Jón Guðmundsson – författare

Natten mot den 21 september 1615 blåste det upp en kraftig storm bland Västfjordarna, där tre skepp låg för ankar inne i Reykjarfjörður. Besättningen ombord var basker som hade ägnat sommaren åt valjakt i de isländska vattnen. Stormen och drivisen krossade deras skepp, tre män drunknade i vågorna, medan åttiotre lyckades rädda sig i land. Inom ett par veckor hade trettioen av dem blivit mördade av den isländska lokalbefolkningen, ledda av sysslo­mannen Ari Magnússon, den danska kronans representant i regionen. Om denna massaker, en av de blodigaste tilldragelserna i Islands historia, skrev Jón Guðmundsson, en självlärd allmogeman som bodde i trakten. Hans sammanställning av vittnesmål om händelserna, hans kritik mot sysslomannens agerande och hans vägran att delta i ett uppbåd som skulle dräpa även resten av de strandsatta sjömännen ledde till att han tvingades fly från Västfjordarna. Jón Guðmundssons krönika, En sann berättelse om spanjorernas skeppsbrott och strid, presenteras här i svensk översättning för första gången, tillsammans med en lång inledning, där händelserna sätts i sitt historiska sammanhang. Jón Guðmundsson (f. 1574 i Ófeigsfjörður, d. 1658 i Hjaltastaður) var en isländsk, självlärd man som skrev om natur och kultur, magi och historia samt om morden på trettioen baskiska sjömän i Västfjordarna 1615. Joakim Lljegren (f. 1986 i Umeå) är fil.mag. i nordiska språk, bibliotekarie vid Göteborgs universitetsbibliotek och har tidigare medverkat i utgåvorna "Islänningasagorna" (Saga, 2014) och "Sturlunga" (Anthropos, 2021).

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.