Scavenging hydrogen sulfide in an oil well

Details Scavenging hydrogen sulfide in an oil well Scavenging hydrogen sulfide in an oil well

C - Chemistry, Metallurgy

09

K

31/12

C09K 8/54 (2006.01) C09K 8/02 (2006.01) E21B 37/06 (2006.01)

Patent

CA 1126007

ABSTRACT Hydrogen sulfide is removed from a fluid com- prising an oil base mud or at least one organic phase, without adversely affecting the rheology of the fluid, by adding to the fluid a sulfide scavenger selected from the group consisting of zinc hydrosulfite, basic zinc carbonate and calcium hydroxide.

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