Boring or penetrating the earth – With signaling – indicating – testing or measuring – Indicating – testing or measuring a condition of the formation
Patent
1998-02-09
2000-02-29
Suchfield, George
Boring or penetrating the earth
With signaling, indicating, testing or measuring
Indicating, testing or measuring a condition of the formation
7315203, 1662542, 507103, C09K 706, E21B 2100, E21B 4900
Patent
active
060297557
ABSTRACT:
A conductive fluid has been formulated for use in a method of electrically logging subterranean wells. The conductive fluid includes a miscible combination of an oleaginous fluid, a water soluble alcohol, and an electrolytic salt. The electrolytic salt or brine of the salt is present in a concentration sufficient to permit the electrical logging of the subterranean well. The medium may further include gelling agent, weight material, surfactant, or corrosion inhibitors. The oleaginous fluid may preferably be a preferentially-oil-soluble glycol alone or in combination with mineral oil, vegetable oil, synthetic oil, silicone oil or combinations and mixtures of these. The alcohol may preferably be a water soluble glycol or glycol ether such as ethylene glycol, diethylene glycol, propylene glycol and the like. The electrolytic salt or brine may be an inorganic or organic salt, examples of which include sodium chloride, sodium bromide, potassium chloride, ammonium chloride, magnesium chloride, calcium chloride, calcium bromide, sodium acetate, potassium acetate, sodium citrate, or combinations thereof.
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M-I L.L.C.
Suchfield George
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