Why is biocide used in fracking?
Biocides are added to fracking fluids to kill bacteria that can corrode well casings, limit efficacy of oil and gas extraction, and produce highly toxic hydrogen sulfide gas.
What are the 2 listed negatives about fracking?
Fracking pollutes groundwater, increases greenhouse gases, and causes earthquakes. According to Environment America Research and Policy Center, “Fracking uses vast quantities of chemicals known to harm human health…
What are 3 chemicals that are used in fracking?
Chemicals Used in Fracking Common ingredients include methanol, ethylene glycol, and propargyl alcohol. Those chemicals, along with many others used in fracking fluid, are considered hazardous to human health.
How do biocides work?
Biocide is a chemical substance or microorganism intended to destroy, deter, render harmless, or exert a controlling effect on any harmful organism by chemical or biological means. Biocides are one of the most commonly used techniques in industry to kill bacteria in the system because of the rapid response.
What is biocide used for in oil and gas?
An additive that kills bacteria. Bactericides, also called biocides, can be used to control sulfate-reducing bacteria, slime-forming bacteria, iron-oxidizing bacteria and bacteria that attacks polymers in fracture and secondary recovery fluids.
What are the most common chemicals used in fracking?
United States
| CAS Number | Chemical Constituent | Commercial use |
|---|---|---|
| 7647-01-0 | Hydrochloric Acid / Hydrogen Chloride / muriatic acid | Toilet Bowl Cleaner |
| 7722-84-1 | Hydrogen peroxide | |
| 79-14-1 | Hydroxy acetic acid | |
| 35249-89-9 | Hydroxyacetic acid ammonium salt |
What are pros and cons of fracking?
Fracking Pros and Cons
- Access to more gas and oil reserves. Accessing oil and gas from shale, though still finite, helps mitigate the exhaustion of oil and gas resources from conventional extraction methods.
- Self-sufficiency.
- Reduced coal production.
- Jobs creation.
- Energy security.
- Reduced water intensity compared to coal.
What additives are used in fracking?
Hydraulic fracturing fluids: A wide variety of chemical additives are used in hydraulic fracturing fluids. They include: dilute acids, biocides, breakers, corrosion inhibitors, crosslinkers, friction reducers, gels, potassium chloride, oxygen scavengers, pH adjusting agents, scale inhibitors, and surfactants.