Chemical for gas well - Demulsifier, Defoamer, Scale Inhibitor
Chemical for gas well - Demulsifier, Defoamer, Scale Inhibitor
(OP)
Hi, I would like to know if these chemicals (demulsier, defoamer, scale inhibitor) are required for gas well? Or these chemicals are required for oil producing well only?
Thanks.
Thanks.





RE: Chemical for gas well - Demulsifier, Defoamer, Scale Inhibitor
Salt chemicals are a special case. They really work well in continuous-phase liquid (like, say, and oil well) because they will allow salts to move in a slurry. Gas wells lack the flow energy to transport the slurry and the salt becomes a bigger problem than it would have been without the chemicals.
De-foamers generally work counter to what a gas well needs (the industry spends millions of dollars pumping foamers into gas wells). De-foamers seem to be counter to that trend. I'm not a huge fan of indiscriminate use of foamers because I see unactivated soap in too many wells, and late activate soap in too many pipelines, but de-foamers in gas wells seem dumb.
In short the only way to successfully treat gas flow lines and wellbore tubulars is by batching the chemicals with pigs or plungers. Other than that, all the chemicals you mentioned are worse than worthless (they cost a lot and basically do no good).
Bottom line is that you need to be absolutely certain that you have a transport mechanism that has a chance of working before you spend a bunch of time and money on gas-well chemicals.
David Simpson, PE
MuleShoe Engineering
www.muleshoe-eng.com
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