Process and water-base fluid utilizing hydrophobically modified

Details Process and water-base fluid utilizing hydrophobically modified Process and water-base fluid utilizing hydrophobically modified

1997-03-05

2000-03-21

Kelly, C. H.

Earth boring, well treating, and oil field chemistry

Well treating

Contains organic component

507215, 507216, 507202, 507209, C09K 300, E21B 4325

Patent

active

060402768

ABSTRACT:
The present invention relates to a process used in a well for controlling the filtration of a drilling, a completion or a workover fluid set in a well. The process comprises adding a predetermined amount of at least one hydrophobically modified cellulose derivative. In a variant of the invention, the cellulose derivative is a hydrophobically modified hydroxyethylcellulose. The invention further relates to a drilling, a completion or a workover fluid including at least one hydrophobically modified cellulose derivative, for example hydrophobically modified hydroxyethylcellulose and notably viscosifiers such as polymers or reactive clay.

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