Well completion and workover method

Details Well completion and workover method Well completion and workover method

1976-05-03

1977-09-06

Novosad, Stephen J.

Wells

Processes

Placing fluid into the formation

166278, 166297, 166312, 175 65, 252 85A, E21B 2100, C09K 700

Patent

active

040461971

ABSTRACT:
A well completion and workover method wherein a subterranean formation is contacted with a high density, nondamaging treating fluid which comprises a saturated, aqueous solution having finely divided particles of a water soluble salt suspended therein. The saturated aqueous saline solution should have a density of at least about 1.2 g/cc and the suspended salt particles should be present in sufficient quantities to substantially increase the overall density of the treating solution. The preferred fluid comprises a suspension of pulverized sodium chloride in a saturated calcium chloride solution. Dispersants and viscosifiers can be added in minor amounts to help maintain the salt particles in suspension.

REFERENCES:
patent: 1819646 (1931-08-01), Loomis et al.
patent: 2352805 (1944-07-01), Schevermann et al.
patent: 3378489 (1968-04-01), Lasater
patent: 3633689 (1972-01-01), Christman
patent: 3675717 (1972-07-01), Goins, Jr. et al.
patent: 3716486 (1973-02-01), Perricone
patent: 3720265 (1973-03-01), Tate

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