Processing systems/design
This paper describes the operator’s digital-twin end-to-end production system deployed for model-based surveillance and optimization.
The authors of this paper describe a project to develop a virtual sensor to monitor the cooling effect downstream of a subsea choke to avoid hydrate plugs during cold-start operations.
First LNG at Tellurian’ asset known as Driftwood LNG before Woodside’s acquisition last year is expected in 2029.
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A single-step cryogenic-distillation process that removes carbon dioxide (CO2), hydrogen sulfide (H2S), and other impurities from natural gas has been developed by ExxonMobil. -
Tube leaks present in a water-cooled sulfur recovery unit (SRU) condenser can lead to a variety of process issues, including corrosion and the oxidative formation of acidic species. This work devised a novel method to verify such leaks within a SRU condenser.
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In gas applications with high-pressure drops and/or high-velocity gas flow, acoustic-induced vibration (AIV) occurs when very high sound levels are propagated in piping. This can induce fatigue cracking of the pipe and potentially catastrophic pipe failure.
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Setting optimal surface separation pressures are crucial for maximizing the surface liquid production from the wellstream feed. Where separator tests are not available, empirical calculations are often used, but with limitations. A method suitable across many conditions is proposed.
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Issues associated with mercury’s presence in hydrocarbon processing systems have become more apparent as deeper and hotter reservoirs (often with higher levels of mercury) were exploited, and with the low-temperature gas processing used for liquefied natural gas (LNG) and natural gas liquids.
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The oil and gas industry is sometimes slow to adopt new technologies and other times quick to deploy a new approach. The decision whether to try something new weighs the perceived risks and rewards.
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