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PETROCIDE ® REGISTERED BIOCIDES BRINGING SCIENCE TO STIMULATION ®
PETROCIDE® REGISTERED BIOCIDES
BRINGING SCIENCE TO STIMULATION®
PETROCIDE® REGISTERED BIOCIDES: PROTECT & PRESERVEStepan Oilfield Solutions understands the detrimental effects that microbial growth may cause on your upstream oil and gas recovery systems.
Our new PETROCIDE Registered Biocides line are U.S. Environmental Protection Agency (EPA)-registered blends of glutaraldehyde and quaternary amines. These formulated end-use products (EUPs) are designed to specifically reduce and eliminate heterotrophic bacteria, acid-producing bacteria (APB) and sulfate-reducing bacteria (SRB) that are known to instigate issues such as well souring and microbial-induced corrosion on oilfield equipment, storage tanks and transmission pipelines.
Stepan Oilfield Solutions offers a solid portfolio of the most commercially used biocidal active EUPs to meet your microbial control needs.
PRODUCT NAME TYPE ACTIVE INGREDIENT % ACTIVEPETROCIDE GQ-2713 EUP GLUTARALDEHYDE 26.7
DIDECYL DIMETHYL AMMONIUM CHLORIDE (DDAC) 8
ALKYL (40% C12, 50% C14, 10% C16) DIMETHYL BENZYL AMMONIUM CHLORIDE (ADBAC)
5.3
PETROCIDE GQ-1203 EUP GLUTARALDEHYDE 12
DDAC 1.8
ADBAC 1.2
PETROCIDE QD-10 EUP DDAC 10
PETROCIDE GQ-1425 EUP GLUTARALDEHYDE 14
ADBAC 2.5
PETROCIDE QG-105 EUP GLUTARALDEHYDE 5
ADBAC 10
Stepan Oilfield Solutions conducted a series of laboratory tests to measure the biocidal performance of the PETROCIDE Registered Biocides portfolio against various bacteria types that yielded dramatic results as seen in the following figures.
Figure 1 demonstrates the fast-acting characteristic of PETROCIDE Q-D10, PETROCIDE QG-105 and PETROCIDE GQ-1425, showing a greater than four-log reduction of SRB at 150 ppm at a 1-minute contact time.
This graph shows the log reduction of a single dilution series data against planktonic bacteria at a 1-minute treatment time. A larger log reduction means greater elimination of bacteria.
The test shows PETROCIDE Q-D10, PETROCIDE QG-105 and PETROCIDE GQ-1425 reducing at least 1 log or greater against SRB at 15 ppm and 150 ppm (total actives).
*Testing data was derived using a proprietary Stepan Company testing method.
PETROCIDE Q-D10, PETROCIDE QG-105, PETROCIDE GQ-1425 show biocidal efficacy against SRB at a 1-minute contact time
FIGURE 1
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PETROCIDE Q-D10PETROCIDE QG-105PETROCIDE GQ-1425
PETROCIDE GQ-2713 at 35ppm (total actives) shows greater biocidal efficacy at 24 hours than glutaraldehyde
FIGURE 2
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This graph shows the log reduction of a single dilution series data against planktonic bacteria at a 24-hour treatment time. A larger log reduction means greater elimination of bacteria. The test shows PETROCIDE GQ-2713 reducing at least 1 log or greater bacterial populations against the oilfield-specific organisms noted above.
PETROCIDE GQ-2713Glutaraldehyde
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APB SRB
APB = Acid-Producing BacteriaSRB = Sulfate-Reducing Bacteria
Figure 2 shows how PETROCIDE GQ-2713 , in particular, was more effective at reducing microbial populations than glutaraldehyde alone, especially in the case of SRB.
Both PETROCIDE GQ-2713 and PETROCIDE GQ-1203 demonstrated quick and effective elimination of SRB that are known to cause corrosion. PETROCIDE GQ-1203 showed a 99.9% diminished SRB population at 2 hours, and PETROCIDE GQ-2713 performed equally well at 4 hours (see Figure 3). After a 24-hour period, both products showed a 10 million-fold reduction of SRB populations.
Efficacy over 48 hours of PETROCIDE GQ-2713 and PETROCIDE-GQ 1203
FIGURE 3
This graph shows the log reduction of a single dilution series data against planktonic bacteria at a 48-hour treatment time. A larger log reduction means greater elimination of bacteria. PETROCIDE GQ-1203 was tested at a 1:3333 dilution (83.85 ppm) from its starting active concentration. Testing data for Figures 2 and 3 were derived using NACE Standard TM0194 for microbial growth tests. NACE is the National Association of Corrosion Engineers.
APBSRB
APB = Acid-Producing BacteriaSRB = Sulfate-Reducing Bacteria
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PETROCIDE GQ-2713 at 35 ppm (total actives) PETROCIDE GQ-1203 at 84 ppm (total actives)
BRINGING SCIENCE TO STIMULATION®
PETROCIDE Registered Biocides can be a powerful solution to address problems associated with microbes in a range of oilfield applications, from drilling and stimulation to production and transportation. For short- and long-term protection of your well, talk with our technical experts to help select the optimum biocide treatment program for your application.
For more information about PETROCIDE Registered Biocides and other Stepan Oilfield Solutions products, email [email protected] or call 713.955.8100. For commercial ordering information, email [email protected].
2901 W Sam Houston Parkway N, Suite E-350, Houston, TX 77043 713.955.8100
PETROCIDE IS A TRADEMARK OF STEPAN COMPANY. The information contained herein is based on the manufacturer’s own study and the works of others and is subject to change without prior notice. The information is not intended to be all-inclusive, including as to the manner and conditions of use, handling, storage or disposal or other factors that may involve additional legal, environmental, safety or performance considerations. Nothing contained herein grants or extends a license, express or implied, in connection with any patents issued or pending of the manufacturer or others, or shall be construed as a recommendation to infringe any patents. STEPAN COMPANY MAKES NO PRODUCT WARRANTY OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR USE, EXPRESS OR IMPLIED, AND NO OTHER WARRANTY OR GUARANTY, EXPRESS OR IMPLIED, IS MADE, INCLUDING AS TO INFORMATION REGARDING PERFORMANCE, SAFETY, SUITABILITY, STABILITY, ACCURACY, COMPLETENESS, OR ADEQUACY. Stepan Company (and its employees, subsidiaries and affiliates) shall not be liable (regardless of fault) to the vendee, its employees, or any other party for any direct, indirect, special or consequential damages arising out of or in connection with the accuracy, completeness, adequacy, furnishing, use, or reliance upon information provided herein. The vendee assumes and releases Stepan Company (and its employees, subsidiaries and affiliates) from all liability, whether in tort, contract or otherwise to the fullest extent possible under the relevant law. © Stepan Company, 2019
