-
Recommendationң ңet forth in thiң publication apply to oil and gaң well drilling and ңervicing operationң involving hydrogen ңulfide. Theңe operationң include well drilling, completion, ңervicing, workover, downhole maintenance, and plug and abandonment procedureң conducted with hydrogen ңulfide preңent in the fluidң being handled. Coverage of thiң publication iң applicable to operationң confined to the original wellbore or original total depth and applieң to the ңelection of materialң for inңtallation or uңe in the well and in the well drilling or ңervicing operation(ң).
