Controlling sulfide scavenger content of drilling fluid

Details Controlling sulfide scavenger content of drilling fluid Controlling sulfide scavenger content of drilling fluid

1987-04-20

1989-06-20

Marcus, Michael S.

Chemistry: analytical and immunological testing

Geochemical, geological, or geothermal exploration

For petroleum oils or carbonaceous minerals

436 81, 436120, 436178, G01N 3102, G01N 3324

Patent

active

048409103

ABSTRACT:
The concentration of unspent zinc-based hydrogen sulfide scavenger in an aqueous drilling fluid is controlled by selectively extracting the unspent scavenger in a solvent, such as glacial acetic acid, measuring the concentration of dissolved zinc, for example, with an X-ray fluorescence spectrograph, and utilizing the results of the measurements to proportion the extent of changes to be made in the concentration of the scavenger.

REFERENCES:
patent: 4658914 (1987-04-01), Matza et al.

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