INHIBITION OF BACTERIAL GROWTH IN PIPELINES
First Claim
Patent Images
1. A method for remediation of microbially induced corrosion in a section of a pipeline used to transport water with a total dissolved salt concentration of at least 0.25 M expressed as sodium chloride dissolved, the pipeline having a volume, where bacteria that induce corrosion grow on the inside surface of the pipeline and have an intracellular tonicity, comprising:
- a) performing a pig run in the section of the pipeline;
b) subjecting the inside of the section of the pipeline to a hypotonic water compared to the intracellular tonicity of the bacteria growing on the inside surface of the pipeline sufficient to cause osmotic lysis in the bacteria.
0 Assignments
0 Petitions
Accused Products
Abstract
Use fresh water or water with sufficiently reduced salinity to trigger burst of bacterial cell wall due to osmotic pressure gradient. Combine the freshwater with conventional biocide treatment and pigging to increase the likelihood of killing the bacteria responsible for reservoir souring.
1 Citation
20 Claims
-
1. A method for remediation of microbially induced corrosion in a section of a pipeline used to transport water with a total dissolved salt concentration of at least 0.25 M expressed as sodium chloride dissolved, the pipeline having a volume, where bacteria that induce corrosion grow on the inside surface of the pipeline and have an intracellular tonicity, comprising:
-
a) performing a pig run in the section of the pipeline; b) subjecting the inside of the section of the pipeline to a hypotonic water compared to the intracellular tonicity of the bacteria growing on the inside surface of the pipeline sufficient to cause osmotic lysis in the bacteria. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
2. A method for remediation of microbially induced corrosion in a section of a pipeline used to transport water with a total dissolved salt concentration of at least 0.25 M expressed as sodium chloride dissolved, the pipeline having a volume, where bacteria that induce corrosion grow on the inside surface of the pipeline and have an intracellular tonicity, comprising:
- b) subjecting the inside of the section of the pipeline to a hypotonic water compared to the intracellular tonicity of the bacteria growing on the inside surface of the pipeline sufficient to cause osmotic lysis in the bacteria.
- View Dependent Claims (15, 16, 17, 18, 19, 20)
-
14. A use of a hypotonic water for remediation of microbially induced corrosion in a section of a pipeline situated in connection with an oil reservoir or a section thereof, the pipeline being used to transport water with a total dissolved salt concentration of at least 0.25 M expressed as sodium chloride dissolved, the pipeline having a volume, where bacteria that induce corrosion grow on the inside surface of the pipeline and have an intracellular tonicity that is at least 3-fold higher than the hypotonic water.
Specification