DEFINITIONS:
Biocide: A chemical added to preserve fluids and systems by controlling the proliferation and growth of microorganisms that can affect corrosion and system cleanliness.
General Aerobic Bacteria (GAB): Prokaryotic (Bacteria and Archaea) microorganisms that obtain their biochemical energy and reproduce in the presence of oxygen, e.g. acidproducing bacteria and ironoxidizing bacteria.
Hydrostatic Test: A pressure test conducted to piping or equipment by subjecting it to an internal pressure using water or other approved liquid as the test medium to ensure strength of the system at the test pressure.
Oxygen Scavenger: A chemical added to the process/water to help remove or decrease the level of dissolved oxygen in the system to control corrosion.
Pitting Resistance Equivalent Number (PREN): A qualitative factor developed to predict the pitting resistance of a Corrosion Resistant Alloy (CRA) based on its minimum chromium (Cr), molybdenum (Mo), tungsten (W), and nitrogen (N) % contents. PREN can be calculated using below equation, per NACE MR0175/ISO 15156:
PREN = Cr% + 3.3 (Mo% + 0.5 W%) + 16 N%
SulfateReducing Bacteria (SRB): Prokaryotic (Bacteria and Archaea) microorganisms that obtain their biochemical energy by metabolizing sulfate with natural organic compounds to produce hydrogen sulfide and sulfide (H2S, HS) as metabolic byproducts in anaerobic environments.
Total Dissolved Solids (TDS): A measure of the combined content of all inorganic and organic substances contained in a liquid.
Total Suspended Solids (TSS): A measure of the dry weight of particles contained in a liquid trapped by a filter.


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Description: This Channel always discusses the Quality, inspection and construction perspective of construction of pipelines and similar topics. Time to time we discuss the related basic knowledge, physics or science to help understanding the mani topics in details.


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Ans : I am a pipeliner in Saudi Arabia (Gulf) who has been working with oil and gas field for the past 21 years.

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Ans : I head the quality control department of an MNC in oil and gas control for the past 12 years.

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3. DESTRUCTIVE MECHANICAL TESTS FOR WELDS TENSILE HARDNESS BEND IMPACT FRACTURE MACROETCHING CTOD WELDS

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16. Metals, Non metals: https://studio.youtube.com/video/jbKW...

17. What is Pigging? Uses of Pigg, pipeline Internal cleaning, caliper survey:: https://studio.youtube.com/video/wJaB...


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