Well fluid and test method

Details Well fluid and test method Well fluid and test method

1989-09-01

1991-01-29

Suchfield, George A.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Indicating agent released in drilling fluid

73153, 166250, 436 27, E21B 4710, E21B 4908

Patent

active

049879600

ABSTRACT:
A method of determining dilution of a well bore fluid, such as a drilling fluid, comprising preparing a drilling fluid having a known concentration of bromide ion, using the drilling fluid, recovering a sample of the used drilling fluid, determining quantitatively the concentration of bromide ion in the used drilling fluid, comparing the concentration of bromide ion in the sample drilling fluid with the known concentration of bromide ion in the drilling fluid and determining the dilution of the drilling fluid.

REFERENCES:
patent: 3407042 (1968-10-01), Slentz
patent: 3563874 (1971-02-01), Ross et al.
patent: 4352674 (1982-10-01), Fery
patent: 4607694 (1986-08-01), Sah
patent: 4788848 (1988-12-01), Hsueh
patent: 4807469 (1989-02-01), Hall

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