This paper describes the formulation and application of fluids using microfine particles to produce fit-for-purpose packer and completion fluids, which minimise sag, corrosion & formation impairment, whilst maintaining hydrostatic pressure and well control.
Actual field work done using the microfine weighting agents, manganese tetraoxide with PSD's of ~1 micron D50 have been shown to provide packer & completion fluids, which meet the requirements described above.
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