4. Wells
  5. Processes
  6. With indicating, testing, measuring or locating

Les Johnson

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Method of cementing well casing to avoid gas channelling from sh

Wells – Processes – With indicating – testing – measuring or locating
Patent

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Methods for high purity chromatographic separation of proteins h

Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Separation or purification
Patent

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Shear-sensitive plugging fluid for plugging and a method for...

Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component
Reexamination Certificate

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Profile ID: LFUS-PAI-P-759612

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