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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Subsea pumps are used for gas/liquid separation, subsea compression, and subsea boosting. Solutions aiming at cost reductions are crucial to make subsea processing projects feasible. A cost- and complexity-reduction solution for the subsea electrical power supply is a critical consideration. -
Operator or manufacturer’s reports and published papers are reviewed and a criterion is developed for subsea pump selection.
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Production from an offshore Angola field has been decreasing because of subsea pressure declines amid water-cut increases and limited gas compressor capacity. The development process leading to the selection of high-boosting multiphase pumps is described.
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Processing sour natural gas is a challenge. If mercaptans are present in the sour gas, the limited mercaptan-absorption capacity of the well-known alkanolamine solvents can be a problem.
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The Turritella FPSO (Fig. 1 above) is the deepest floating production system in the world and presented many challenges to successful execution of the surface host facilities.
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A newly developed compressor undergoing field trials could significantly change, and bring substantial cost savings to, the way wellsites are designed.
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Offshore project execution enhancement ideas are highlighted for debottlenecking, gas-hydrate-induced pipeline vibration, and the design of subsea systems for efficient startup.
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An operator in the western Gulf of Thailand retrofit two partial-processing water-management systems on mobile-offshore-production-unit platforms for bulk removal and treatment of produced water. Water debottlenecking increased oil production by 80% and reduced the infield transfer volume by 62%. Th
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A JIP turned the dial closer to achieving all-electric subsea processing with the underwater testing of a subsea variable speed drive in a harsh water environment.
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The paper discusses dehydration performance of two units in two plants—with preinhibited glycol/antifoam/pH adjuster blend vs. neat glycol with periodic injection of antifoam and pH-adjuster inhibitors. The insights present an opportunity for significant operating and capital costs reduction.
