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In recent years, Sinopec Shengli Oilfield has integrated the concept of green and low-carbon into the whole process of scientific and technological research and development, production and operation, so that the oilfield production water becomes waste
.
Microbial biochemical treatment of the produced water
Microbial biochemical treatment of produced water Microbial biochemical treatment of produced water As the oilfield enters the middle and late stages of development, the amount of produced water treatment and the amount of surplus produced water injection are also increasing
year by year.
To this end, the oilfield has set its sights on microbial oil recovery technology
.
In 2020, researchers from the Microbiology Center of Shengli Petroleum Engineering Technology Research Institute established a biochemical fine water treatment process that meets the industrial standard, and the high-efficiency bacterial degradation rate screened was 1.
According to the relevant person in charge of the oilfield, after the use of microbial biochemical treatment of the produced water in Shengli Oilfield, the utilization of the recovered water resources has been realized, and the treatment process is in line with the concept of environmental protection, and there are good economic benefits and broad
application prospects.
Improve the viscosity of polymer solutions
Improve the viscosity of polymer solutions Improve the viscosity of polymer solutions On September 4, 2021, a batch of biologics from the Microbiology Center was sent to the Gudao Oil Production Plant's Lone Four Water Injection Station for the preparation of polymer solutions
from the extracted water.
Polymer flooding can greatly improve oil recovery and contribute
to the sustained and stable production of old oilfields.
"Simply put, this is a way
to use beneficial microorganisms to increase the viscosity of polymer solutions.
Nowadays, this key technology has been promoted to all chemical flooding projects in Shengli Oilfield, providing the core and upgrading technology for the implementation of chemical flooding in
China's Class II and Class III reservoirs.
Steam injection boiler resource utilization
Steam injection boiler resource utilization steam injection boiler resource utilization On May 14, 2022, at the Dan14 water injection station in District 6 of Binnan Oil Production Plant in Shengli Oilfield, Pan Yongqiang, an associate researcher at the Microbiology Center, took a cup of biochemically treated underground produced water with a cup and drank it all
.
The combined station has a high load of produced water, and the demand for clean water from the hot recovery boiler is large, how to comprehensively solve these two problems? At the beginning of 2020, the scientific researchers of the Microbiology Center set up a project
of "Research on the Resource Utilization Technology of Oilfield Produced Water Steam Injection Boiler".
According to the needs of the project, at the end of 2020, researchers carried out biochemical double membrane experiments
on the spot.
If the produced water is deposited around the oil well, over time, most of the light, easily degradable petroleum hydrocarbon components are completely volatile, and the components such as refractory colloidal and asphaltene will adhere to the mud and sand to form an aging sludge
.