Petroskills Blog
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Development of 7% Nickel Steel for LNG Storage Tanks
The construction costs of LNG storage tanks are very high, mainly due to the availability and cost of nickel. Most LNG storage tanks built in the modern era use 9% wt nickel steel as the materials of construction because of the materials well documented toughness at cryogenic temperatures. This article looks at advances in cryogenic metallurgy in...
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PetroSkills partners with the Permian Strategic Partnership and PETEX to launch Catalyst Workforce Project
MIDLAND, TX (June 1, 2021) – The Permian Strategic Partnership (PSP), PetroSkills and University of Texas Petroleum Extension (PETEX) have joined together to develop the Catalyst workforce development program, a first-of-its-kind initiative to both assess existing educational curriculums and design a platform for future standardization and workforc...
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Training Reimagined and Lessons Learned Down the Virtual Road
During the COVID 19 pandemic, all face-to-face training came to a hard stop in March of 2020. As a training organization in the Oil and Gas Industry with a large offering of face-to-face training courses, we were faced with a significant challenge to quickly convert our course offerings to virtual delivery. Our success in the conversion of the mate...
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LNG Containment Tanks: Why is the internal liner 9% Ni and not 7% Ni?
The base material for the tank containing the liquid gas (such as LNG) at below -165°C (-265°F) must remain ductile and crack resistant with the highest level of safety. The material must also permit welding without any risk of defects, for example, induced brittle fracture. Stainless steels, aluminum and 9% nickel steels can be used as they do no...
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The Diffusivity Equation
The theory of well testing begins with an understanding of fluid flow in porous media. In this article, the continuity equation, Darcy’s law, and equation of state for a slightly compressible liquid are used to develop the diffusivity equation, describing single-phase flow of a slightly compressible liquid.
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Introduction to Production Sharing Contracts
This article gives an introduction to the three basic parts of production sharing contracts - cost recovery, division of the “profit oil”, and royalty and income taxes.
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