Optimising offshore multiphase flowmeter technology to improve wet gas field efficiency.

Area of Science:

• Petroleum Engineering
• Flow Measurement Technology
• Offshore Operations

Background:

• Offshore wet gas fields often face challenges with accurate flow measurement, particularly under high gas void fraction (GVF) conditions.
• Traditional wet gas meters exhibit limitations in accuracy and dependability, especially in unmanned facilities (NUFs).
• Improving efficiency and reducing operational costs are critical for offshore oil and gas extraction.

Purpose of the Study:

• To evaluate the performance of Multiphase Flowmeters (MPFMs) in enhancing the efficiency of offshore wet gas fields.
• To compare the accuracy and reliability of MPFMs against conventional wet gas meters, particularly at high GVF.
• To assess the impact of MPFM technology on operating costs, infrastructure needs, and environmental footprint.

Main Methods:

• Extensive testing of MPFMs under various high GVF conditions.
• Comparative analysis of MPFM measurements against reference standards and traditional meter performance.
• Evaluation of MPFM design advancements, including sensor technology, data processing, and materials.

Main Results:

• MPFMs demonstrated superior measurement accuracy and dependability compared to traditional meters.
• MPFMs achieved 100% accuracy in gas volumetric flowrate measurements across 13 blind test points.
• MPFMs' lightweight construction and high GVF handling capability reduce operating costs and infrastructure requirements.

Conclusions:

• MPFMs represent a significant technological advancement for accurate flow measurement in offshore wet gas fields.
• The adoption of MPFMs leads to reduced operating expenses, smaller offshore platforms, and a lessened environmental impact.
• Innovating and implementing MPFMs are crucial for effective and sustainable oil and gas extraction.