DoScav™ 33 H₂S Scavenger
Green Liquid H₂S Scavenger
DoScav™ 33 H₂S Scavenger
No Foaming, No Scale,
No Emulsion, No corrosion
Hydrogen sulfide (H₂S), a naturally occurring compound, is frequently encountered in the oil and gas industry. When natural gas or crude contains H₂S, it's often termed "sour gas" or "sour crude." H₂S dissolves in both water and hydrocarbons. Operators face significant challenges when dealing with H₂S-rich gas, including safety, environmental, and regulatory concerns, as well as operational issues.
The treatment design for acidizing wells that produce H₂S must include procedures to ensure that the generated H₂S gas does not come in contact with the inhibited acid system. DoScav™ 33 can easily be mitigated by the application of standard production corrosion inhibitors and reach the target of 0.1 mmpy corrosion rate with no pitting and be stable.
Low Dosage Scavenging H₂S
The hydrogen sulfide must first be dissolved into the fluid and then once dissolved, it must quickly react with the scavenger molecules. The rate of removal is governed by the rate at which the H₂S dissolves into the scavenger-containing phase (mass transfer rate) and the rate that the scavenger reacts with H₂S. For this reason, contact time is the major consideration when designing an H₂S scavenger program. A suggested treatment is 7 to 12 ppm of DoScav™ 33 H₂S Scavenger per ppm H₂S per bbl of fluid.
Application:
- 3-phase production streams
- 2-phase gas streams
- Downhole
- Subsea
- Wellhead
- Bulk storage tanks
- Produced water streams
Benefits:
- Applied in neutral, acidic, and alkaline conditions
- Four times more efficient than triazine
- No formaldehyde as a by product
- No precipitation of calcium scale
- High temperature stability
- No emulsion
- No corrosion
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