Please answer both questions.

Flag: Talk to engineering before you order

With confirmed H2S exposure, sour-service risk on a high-strength BHA tool like a jar is typically managed through drilling-fluid chemistry rather than jar-specific NACE certification. Before specifying a jar:

• Confirm planned pH control and sulfide-scavenger program with your mud engineer
• Share your H2S concentration and well depth/temperature with our engineering team
• Ask what supplementary qualification (if any) is available for your configuration

Confirm H2S status before finalizing your order

If sour service is not yet ruled out, it is worth confirming before jar selection is locked in — the fluid program and material considerations differ meaningfully from a sweet-service well.

No special sour-service considerations flagged

Standard WLQY configuration guidance applies. If your well plan changes to include H2S exposure later, revisit this check.

Note: water-based mud provides less inherent sulfide-stress-cracking mitigation than an oil-continuous-phase system — worth flagging to your fluids engineer alongside the H2S profile above.